From 87151ed60672de3ada958af22035296db70a7ce8 Mon Sep 17 00:00:00 2001 From: Cavallium Date: Tue, 23 Oct 2018 17:28:05 +0200 Subject: [PATCH] Fixed graphic glitches when changing screen --- Flow | 2 +- .../warppi/extra/mario/MarioScreen.java | 37 + .../warppi/extra/tetris/TetrisScreen.java | 6 +- .../cavallium/warppi/gui/CalculatorHUD.java | 6 + .../cavallium/warppi/gui/DisplayManager.java | 12 +- .../warppi/gui/GraphicalInterface.java | 4 +- .../java/it/cavallium/warppi/gui/HUD.java | 11 + .../warppi/gui/graphicengine/Skin.java | 8 + .../screens/ChooseVariableValueScreen.java | 3 + .../warppi/gui/screens/EmptyScreen.java | 3 + .../gui/screens/KeyboardDebugScreen.java | 3 + .../warppi/gui/screens/LoadingScreen.java | 3 + .../warppi/gui/screens/MathInputScreen.java | 5 + .../cavallium/warppi/gui/screens/Screen.java | 29 + .../warppi/gui/screens/SolveForXScreen.java | 3 + .../graphicengine/impl/swing/SwingWindow.java | 1 + .../graphicengine/impl/jogl/JOGLRenderer.java | 2 +- .../graphicengine/impl/jogl/NEWTWindow.java | 1 - .../ar/com/hjg/pngj/BufferedStreamFeeder.java | 208 ------ .../java/ar/com/hjg/pngj/ChunkReader.java | 231 ------- .../ar/com/hjg/pngj/ChunkSeqBuffering.java | 30 - .../java/ar/com/hjg/pngj/ChunkSeqReader.java | 432 ------------ .../ar/com/hjg/pngj/ChunkSeqReaderPng.java | 310 --------- .../ar/com/hjg/pngj/ChunkSeqSkipping.java | 76 -- .../ar/com/hjg/pngj/DeflatedChunkReader.java | 78 --- .../ar/com/hjg/pngj/DeflatedChunksSet.java | 422 ------------ .../java/ar/com/hjg/pngj/Deinterlacer.java | 197 ------ .../main/java/ar/com/hjg/pngj/FilterType.java | 125 ---- .../java/ar/com/hjg/pngj/IBytesConsumer.java | 16 - .../java/ar/com/hjg/pngj/IChunkFactory.java | 23 - .../java/ar/com/hjg/pngj/IDatChunkWriter.java | 132 ---- .../main/java/ar/com/hjg/pngj/IImageLine.java | 50 -- .../java/ar/com/hjg/pngj/IImageLineArray.java | 26 - .../ar/com/hjg/pngj/IImageLineFactory.java | 8 - .../java/ar/com/hjg/pngj/IImageLineSet.java | 64 -- .../ar/com/hjg/pngj/IImageLineSetFactory.java | 32 - .../ar/com/hjg/pngj/IPngWriterFactory.java | 7 - .../main/java/ar/com/hjg/pngj/IdatSet.java | 246 ------- .../main/java/ar/com/hjg/pngj/ImageInfo.java | 265 ------- .../java/ar/com/hjg/pngj/ImageLineByte.java | 191 ------ .../java/ar/com/hjg/pngj/ImageLineHelper.java | 469 ------------- .../java/ar/com/hjg/pngj/ImageLineInt.java | 203 ------ .../ar/com/hjg/pngj/ImageLineSetDefault.java | 159 ----- .../ar/com/hjg/pngj/PngHelperInternal.java | 332 --------- .../ar/com/hjg/pngj/PngHelperInternal2.java | 35 - .../main/java/ar/com/hjg/pngj/PngReader.java | 647 ------------------ .../java/ar/com/hjg/pngj/PngReaderApng.java | 211 ------ .../java/ar/com/hjg/pngj/PngReaderByte.java | 32 - .../java/ar/com/hjg/pngj/PngReaderFilter.java | 101 --- .../java/ar/com/hjg/pngj/PngReaderInt.java | 39 -- .../main/java/ar/com/hjg/pngj/PngWriter.java | 453 ------------ .../java/ar/com/hjg/pngj/PngWriterHc.java | 35 - .../ar/com/hjg/pngj/PngjBadCrcException.java | 20 - .../java/ar/com/hjg/pngj/PngjException.java | 20 - .../com/hjg/pngj/PngjExceptionInternal.java | 24 - .../ar/com/hjg/pngj/PngjInputException.java | 20 - .../ar/com/hjg/pngj/PngjOutputException.java | 20 - .../hjg/pngj/PngjUnsupportedException.java | 25 - .../main/java/ar/com/hjg/pngj/RowInfo.java | 55 -- .../hjg/pngj/chunks/ChunkCopyBehaviour.java | 97 --- .../ar/com/hjg/pngj/chunks/ChunkFactory.java | 112 --- .../ar/com/hjg/pngj/chunks/ChunkHelper.java | 291 -------- .../hjg/pngj/chunks/ChunkLoadBehaviour.java | 27 - .../com/hjg/pngj/chunks/ChunkPredicate.java | 14 - .../java/ar/com/hjg/pngj/chunks/ChunkRaw.java | 175 ----- .../ar/com/hjg/pngj/chunks/ChunksList.java | 160 ----- .../hjg/pngj/chunks/ChunksListForWrite.java | 185 ----- .../pngj/chunks/PngBadCharsetException.java | 20 - .../java/ar/com/hjg/pngj/chunks/PngChunk.java | 227 ------ .../ar/com/hjg/pngj/chunks/PngChunkACTL.java | 57 -- .../ar/com/hjg/pngj/chunks/PngChunkBKGD.java | 112 --- .../ar/com/hjg/pngj/chunks/PngChunkCHRM.java | 75 -- .../ar/com/hjg/pngj/chunks/PngChunkFCTL.java | 158 ----- .../ar/com/hjg/pngj/chunks/PngChunkFDAT.java | 72 -- .../ar/com/hjg/pngj/chunks/PngChunkGAMA.java | 51 -- .../ar/com/hjg/pngj/chunks/PngChunkHIST.java | 56 -- .../ar/com/hjg/pngj/chunks/PngChunkICCP.java | 76 -- .../ar/com/hjg/pngj/chunks/PngChunkIDAT.java | 35 - .../ar/com/hjg/pngj/chunks/PngChunkIEND.java | 35 - .../ar/com/hjg/pngj/chunks/PngChunkIHDR.java | 184 ----- .../ar/com/hjg/pngj/chunks/PngChunkITXT.java | 108 --- .../com/hjg/pngj/chunks/PngChunkMultiple.java | 28 - .../ar/com/hjg/pngj/chunks/PngChunkOFFS.java | 81 --- .../ar/com/hjg/pngj/chunks/PngChunkPHYS.java | 107 --- .../ar/com/hjg/pngj/chunks/PngChunkPLTE.java | 95 --- .../ar/com/hjg/pngj/chunks/PngChunkSBIT.java | 114 --- .../ar/com/hjg/pngj/chunks/PngChunkSPLT.java | 129 ---- .../ar/com/hjg/pngj/chunks/PngChunkSRGB.java | 55 -- .../ar/com/hjg/pngj/chunks/PngChunkSTER.java | 54 -- .../com/hjg/pngj/chunks/PngChunkSingle.java | 45 -- .../ar/com/hjg/pngj/chunks/PngChunkTEXT.java | 44 -- .../ar/com/hjg/pngj/chunks/PngChunkTIME.java | 83 --- .../ar/com/hjg/pngj/chunks/PngChunkTRNS.java | 150 ---- .../com/hjg/pngj/chunks/PngChunkTextVar.java | 60 -- .../com/hjg/pngj/chunks/PngChunkUNKNOWN.java | 40 -- .../ar/com/hjg/pngj/chunks/PngChunkZTXT.java | 61 -- .../ar/com/hjg/pngj/chunks/PngMetadata.java | 235 ------- .../java/ar/com/hjg/pngj/chunks/package.html | 9 - .../main/java/ar/com/hjg/pngj/package.html | 49 -- .../com/hjg/pngj/pixels/CompressorStream.java | 168 ----- .../pngj/pixels/CompressorStreamDeflater.java | 105 --- .../hjg/pngj/pixels/CompressorStreamLz4.java | 94 --- .../hjg/pngj/pixels/DeflaterEstimatorHjg.java | 248 ------- .../hjg/pngj/pixels/DeflaterEstimatorLz4.java | 265 ------- .../hjg/pngj/pixels/FiltersPerformance.java | 208 ------ .../ar/com/hjg/pngj/pixels/PixelsWriter.java | 272 -------- .../hjg/pngj/pixels/PixelsWriterDefault.java | 158 ----- .../hjg/pngj/pixels/PixelsWriterMultiple.java | 230 ------- .../java/ar/com/hjg/pngj/pixels/package.html | 14 - .../gui/graphicengine/html/HtmlEngine.java | 2 +- .../gui/graphicengine/html/HtmlSkin.java | 27 +- .../warppi/teavm/TeaVMImageReader.java | 45 +- .../warppi/teavm/TeaVMSemaphore.java | 4 +- 113 files changed, 154 insertions(+), 11660 deletions(-) delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/BufferedStreamFeeder.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ChunkReader.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqBuffering.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqReader.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqReaderPng.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqSkipping.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/DeflatedChunkReader.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/DeflatedChunksSet.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/Deinterlacer.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/FilterType.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IBytesConsumer.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IChunkFactory.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IDatChunkWriter.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IImageLine.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IImageLineArray.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IImageLineFactory.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IImageLineSet.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IImageLineSetFactory.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IPngWriterFactory.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/IdatSet.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ImageInfo.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ImageLineByte.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ImageLineHelper.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ImageLineInt.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/ImageLineSetDefault.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngHelperInternal.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngHelperInternal2.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngReader.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngReaderApng.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngReaderByte.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngReaderFilter.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngReaderInt.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngWriter.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngWriterHc.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngjBadCrcException.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngjException.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngjExceptionInternal.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngjInputException.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngjOutputException.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/PngjUnsupportedException.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/RowInfo.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkCopyBehaviour.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkFactory.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkHelper.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkLoadBehaviour.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkPredicate.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkRaw.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunksList.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunksListForWrite.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngBadCharsetException.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunk.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkACTL.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkBKGD.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkCHRM.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkFCTL.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkFDAT.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkGAMA.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkHIST.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkICCP.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIDAT.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIEND.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIHDR.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkITXT.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkMultiple.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkOFFS.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkPHYS.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkPLTE.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSBIT.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSPLT.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSRGB.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSTER.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSingle.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTEXT.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTIME.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTRNS.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTextVar.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkUNKNOWN.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkZTXT.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/PngMetadata.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/chunks/package.html delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/package.html delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStream.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStreamDeflater.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStreamLz4.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/DeflaterEstimatorHjg.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/DeflaterEstimatorLz4.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/FiltersPerformance.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriter.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriterDefault.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriterMultiple.java delete mode 100644 teavm/src/main/java/ar/com/hjg/pngj/pixels/package.html diff --git a/Flow b/Flow index fc24680..59b89e9 160000 --- a/Flow +++ b/Flow @@ -1 +1 @@ -Subproject commit fc24680f8f2178fa550174c75d7dbacb6065358c +Subproject commit 59b89e9d165c3fc615ca44aa742b531caf13fcb6 diff --git a/core/src/main/java/it/cavallium/warppi/extra/mario/MarioScreen.java b/core/src/main/java/it/cavallium/warppi/extra/mario/MarioScreen.java index 8b5e00c..a7a310f 100644 --- a/core/src/main/java/it/cavallium/warppi/extra/mario/MarioScreen.java +++ b/core/src/main/java/it/cavallium/warppi/extra/mario/MarioScreen.java @@ -44,6 +44,43 @@ public MarioScreen() { historyBehavior = HistoryBehavior.ALWAYS_KEEP_IN_HISTORY; } + @Override + public void graphicInitialized() { + try { + if (MarioScreen.skin == null) { + MarioScreen.skin = Engine.INSTANCE.getHardwareDevice().getDisplayManager().engine.loadSkin("/marioskin.png"); + } + if (MarioScreen.groundskin == null) { + MarioScreen.groundskin = Engine.INSTANCE.getHardwareDevice().getDisplayManager().engine.loadSkin("/marioground.png"); + } + if (MarioScreen.gpuTest2 == null) { + try { + MarioScreen.gpuTest2 = Engine.INSTANCE.getHardwareDevice().getDisplayManager().engine.loadFont("N:\\gputest\\gputest2"); + } catch (final Exception ex) {} + } + if (MarioScreen.gpuTest1 == null) { + try { + MarioScreen.gpuTest1 = Engine.INSTANCE.getHardwareDevice().getDisplayManager().engine.loadFont("N:\\gputest\\gputest12"); + MarioScreen.gpuTest12 = true; + } catch (final Exception ex) { + MarioScreen.gpuTest12 = false; + try { + MarioScreen.gpuTest1 = Engine.INSTANCE.getHardwareDevice().getDisplayManager().engine.loadFont("N:\\gputest\\gputest1"); + } catch (final Exception ex2) {} + } + } + if (MarioScreen.gpuTest3 == null) { + try { + MarioScreen.gpuTest3 = Engine.INSTANCE.getHardwareDevice().getDisplayManager().engine.loadSkin("N:\\gputest\\font_gputest3.png"); + } catch (final Exception ex) { + ex.printStackTrace(); + } + } + } catch (final IOException e) { + e.printStackTrace(); + } + } + @Override public void initialized() { try { diff --git a/core/src/main/java/it/cavallium/warppi/extra/tetris/TetrisScreen.java b/core/src/main/java/it/cavallium/warppi/extra/tetris/TetrisScreen.java index ef54d9f..64e954d 100644 --- a/core/src/main/java/it/cavallium/warppi/extra/tetris/TetrisScreen.java +++ b/core/src/main/java/it/cavallium/warppi/extra/tetris/TetrisScreen.java @@ -43,13 +43,17 @@ public TetrisScreen() { @Override public void initialized() { + StaticVars.windowZoom.onNext(2f); + } + + @Override + public void graphicInitialized() { try { e = d.engine; r = d.renderer; if (TetrisScreen.skin == null) { TetrisScreen.skin = Engine.INSTANCE.getHardwareDevice().getDisplayManager().engine.loadSkin("/tetrisskin.png"); } - StaticVars.windowZoom.onNext(2f); } catch (final IOException e) { e.printStackTrace(); } diff --git a/core/src/main/java/it/cavallium/warppi/gui/CalculatorHUD.java b/core/src/main/java/it/cavallium/warppi/gui/CalculatorHUD.java index a86fac7..921c32c 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/CalculatorHUD.java +++ b/core/src/main/java/it/cavallium/warppi/gui/CalculatorHUD.java @@ -24,6 +24,12 @@ public void initialized() throws InterruptedException { } + @Override + public void graphicInitialized() throws InterruptedException { + // TODO Auto-generated method stub + + } + @Override public void render() { // TODO Auto-generated method stub diff --git a/core/src/main/java/it/cavallium/warppi/gui/DisplayManager.java b/core/src/main/java/it/cavallium/warppi/gui/DisplayManager.java index 55647aa..cf91378 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/DisplayManager.java +++ b/core/src/main/java/it/cavallium/warppi/gui/DisplayManager.java @@ -242,10 +242,10 @@ private void updateCurrentScreen(Screen screen) { screen.create(); } this.screen = screen; - screenChange.release(); if (screen.initialized == false) { screen.initialize(); } + screenChange.release(); } catch (final Exception e) { e.printStackTrace(); Engine.getPlatform().exit(0); @@ -267,10 +267,10 @@ public void replaceScreen(final Screen screen) { try { screen.create(); this.screen = screen; - screenChange.release(); if (screen.initialized == false) { screen.initialize(); } + screenChange.release(); } catch (final Exception e) { e.printStackTrace(); Engine.getPlatform().exit(0); @@ -372,6 +372,13 @@ private void draw_init() { } } } + if (!screen.graphicInitialized) { + try { + screen.initializeGraphic(); + } catch (InterruptedException e) { + e.printStackTrace(); + } + } renderer.glClear(engine.getWidth(), engine.getHeight()); } @@ -439,7 +446,6 @@ public void loop() { setScreen(initialScreen); initialScreen = null; } - screen.initialize(); } catch (final Exception e) { e.printStackTrace(); Engine.getPlatform().exit(0); diff --git a/core/src/main/java/it/cavallium/warppi/gui/GraphicalInterface.java b/core/src/main/java/it/cavallium/warppi/gui/GraphicalInterface.java index 9617df3..f1ee569 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/GraphicalInterface.java +++ b/core/src/main/java/it/cavallium/warppi/gui/GraphicalInterface.java @@ -2,8 +2,10 @@ public interface GraphicalInterface { void create() throws InterruptedException; - + void initialize() throws InterruptedException; + + void initializeGraphic() throws InterruptedException; void render(); diff --git a/core/src/main/java/it/cavallium/warppi/gui/HUD.java b/core/src/main/java/it/cavallium/warppi/gui/HUD.java index 06e13a2..79436fe 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/HUD.java +++ b/core/src/main/java/it/cavallium/warppi/gui/HUD.java @@ -3,6 +3,7 @@ public abstract class HUD implements GraphicalInterface { public DisplayManager d; public boolean created = false; + public boolean graphicInitialized = false; public boolean initialized = false; public boolean visible = true; @@ -16,6 +17,14 @@ public void initialize() throws InterruptedException { } } + @Override + public void initializeGraphic() throws InterruptedException { + if (!graphicInitialized) { + graphicInitialized = true; + graphicInitialized(); + } + } + @Override public void create() throws InterruptedException { if (!created) { @@ -26,6 +35,8 @@ public void create() throws InterruptedException { public abstract void created() throws InterruptedException; + public abstract void graphicInitialized() throws InterruptedException; + public abstract void initialized() throws InterruptedException; public abstract void renderBackground(); diff --git a/core/src/main/java/it/cavallium/warppi/gui/graphicengine/Skin.java b/core/src/main/java/it/cavallium/warppi/gui/graphicengine/Skin.java index 5469dbd..80c24b7 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/graphicengine/Skin.java +++ b/core/src/main/java/it/cavallium/warppi/gui/graphicengine/Skin.java @@ -13,7 +13,15 @@ public interface Skin { void use(GraphicEngine d); + /** + * May not be available before initialization + * @return skin width + */ int getSkinWidth(); + /** + * May not be available before initialization + * @return skin height + */ int getSkinHeight(); } diff --git a/core/src/main/java/it/cavallium/warppi/gui/screens/ChooseVariableValueScreen.java b/core/src/main/java/it/cavallium/warppi/gui/screens/ChooseVariableValueScreen.java index 0a7b92b..0c8a7ca 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/screens/ChooseVariableValueScreen.java +++ b/core/src/main/java/it/cavallium/warppi/gui/screens/ChooseVariableValueScreen.java @@ -27,6 +27,9 @@ public void created() throws InterruptedException {} @Override public void initialized() throws InterruptedException {} + @Override + public void graphicInitialized() throws InterruptedException {} + @Override public void render() { Utils.getFont(false, true).use(Engine.INSTANCE.getHardwareDevice().getDisplayManager().engine); diff --git a/core/src/main/java/it/cavallium/warppi/gui/screens/EmptyScreen.java b/core/src/main/java/it/cavallium/warppi/gui/screens/EmptyScreen.java index 7502376..e60210b 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/screens/EmptyScreen.java +++ b/core/src/main/java/it/cavallium/warppi/gui/screens/EmptyScreen.java @@ -19,6 +19,9 @@ public void created() throws InterruptedException { @Override public void initialized() throws InterruptedException {} + @Override + public void graphicInitialized() throws InterruptedException {} + @Override public void render() { // TODO Auto-generated method stub diff --git a/core/src/main/java/it/cavallium/warppi/gui/screens/KeyboardDebugScreen.java b/core/src/main/java/it/cavallium/warppi/gui/screens/KeyboardDebugScreen.java index 10302b1..412a08e 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/screens/KeyboardDebugScreen.java +++ b/core/src/main/java/it/cavallium/warppi/gui/screens/KeyboardDebugScreen.java @@ -27,6 +27,9 @@ public void created() throws InterruptedException {} @Override public void initialized() throws InterruptedException {} + @Override + public void graphicInitialized() throws InterruptedException {} + @Override public void render() { final Renderer renderer = Engine.INSTANCE.getHardwareDevice().getDisplayManager().renderer; diff --git a/core/src/main/java/it/cavallium/warppi/gui/screens/LoadingScreen.java b/core/src/main/java/it/cavallium/warppi/gui/screens/LoadingScreen.java index ed4af2f..db078d4 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/screens/LoadingScreen.java +++ b/core/src/main/java/it/cavallium/warppi/gui/screens/LoadingScreen.java @@ -33,6 +33,9 @@ public void initialized() throws InterruptedException { Engine.INSTANCE.getHardwareDevice().getDisplayManager().getHUD().hide(); StaticVars.windowZoom.onNext(1f); } + + @Override + public void graphicInitialized() throws InterruptedException {} @Override public void beforeRender(final float dt) { diff --git a/core/src/main/java/it/cavallium/warppi/gui/screens/MathInputScreen.java b/core/src/main/java/it/cavallium/warppi/gui/screens/MathInputScreen.java index d783556..396c4eb 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/screens/MathInputScreen.java +++ b/core/src/main/java/it/cavallium/warppi/gui/screens/MathInputScreen.java @@ -105,6 +105,11 @@ public void initialized() throws InterruptedException { /* Fine caricamento */ } + @Override + public void graphicInitialized() throws InterruptedException { + /* Fine caricamento */ + } + @Override public void beforeRender(final float dt) { if (Engine.INSTANCE.getHardwareDevice().getDisplayManager().error == null) { diff --git a/core/src/main/java/it/cavallium/warppi/gui/screens/Screen.java b/core/src/main/java/it/cavallium/warppi/gui/screens/Screen.java index ec6dbb2..5c07dd1 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/screens/Screen.java +++ b/core/src/main/java/it/cavallium/warppi/gui/screens/Screen.java @@ -10,6 +10,7 @@ public abstract class Screen implements KeyboardEventListener, TouchEventListene public DisplayManager d; public boolean created = false; public boolean initialized = false; + public boolean graphicInitialized = false; public HistoryBehavior historyBehavior = HistoryBehavior.NORMAL; public static long lastDebugScreenID = 1; @@ -19,6 +20,14 @@ public Screen() { debugScreenID = lastDebugScreenID++; } + @Override + public void initializeGraphic() throws InterruptedException { + if (!graphicInitialized) { + graphicInitialized = true; + graphicInitialized(); + } + } + @Override public void initialize() throws InterruptedException { if (!initialized) { @@ -35,10 +44,30 @@ public void create() throws InterruptedException { } } + /** + * Called when creating the screen + * Called before initialized() + * Called before graphicInitialized() + * @throws InterruptedException + */ public abstract void created() throws InterruptedException; + /** + * Load everything except skins, etc... + * Called after created() + * Called after graphicInitialized() + * @throws InterruptedException + */ public abstract void initialized() throws InterruptedException; + /** + * Load skins, etc... + * Called after created() + * Called before initialized() + * @throws InterruptedException + */ + public abstract void graphicInitialized() throws InterruptedException; + @Override public abstract void render(); diff --git a/core/src/main/java/it/cavallium/warppi/gui/screens/SolveForXScreen.java b/core/src/main/java/it/cavallium/warppi/gui/screens/SolveForXScreen.java index 6890dd1..c9a0624 100644 --- a/core/src/main/java/it/cavallium/warppi/gui/screens/SolveForXScreen.java +++ b/core/src/main/java/it/cavallium/warppi/gui/screens/SolveForXScreen.java @@ -23,6 +23,9 @@ public void created() throws InterruptedException {} @Override public void initialized() throws InterruptedException {} + @Override + public void graphicInitialized() throws InterruptedException {} + @Override public void render() { Engine.INSTANCE.getHardwareDevice().getDisplayManager().renderer.glColor4i(0, 0, 0, 64); diff --git a/desktop/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/swing/SwingWindow.java b/desktop/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/swing/SwingWindow.java index a417bf3..76cbd42 100644 --- a/desktop/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/swing/SwingWindow.java +++ b/desktop/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/swing/SwingWindow.java @@ -372,6 +372,7 @@ public void paintComponent(final Graphics g) { if (renderingLoop != null) { renderingLoop.refresh(); + final int[] a = ((DataBufferInt) display.g.getRaster().getDataBuffer()).getData(); SwingRenderer.canvas2d = a; g.clearRect(0, 0, display.r.size[0] * mult, display.r.size[1] * mult); diff --git a/engine-jogl/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/jogl/JOGLRenderer.java b/engine-jogl/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/jogl/JOGLRenderer.java index 6f6ed6e..6cdea1f 100644 --- a/engine-jogl/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/jogl/JOGLRenderer.java +++ b/engine-jogl/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/jogl/JOGLRenderer.java @@ -261,7 +261,7 @@ static Texture importTexture(final GL gl, final String string) throws IOExceptio } static OpenedTextureData openTexture(final String file, final boolean isResource) throws GLException, IOException { - BufferedImage img = ImageIO.read(isResource ? JOGLRenderer.class.getResource("/" + file) : new File(file).toURI().toURL()); + BufferedImage img = ImageIO.read(isResource ? JOGLRenderer.class.getResource(file) : new File(file).toURI().toURL()); File f; if (isResource) { f = Files.createTempFile("texture-", ".png").toFile(); diff --git a/engine-jogl/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/jogl/NEWTWindow.java b/engine-jogl/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/jogl/NEWTWindow.java index 9c48774..f574617 100644 --- a/engine-jogl/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/jogl/NEWTWindow.java +++ b/engine-jogl/src/main/java/it/cavallium/warppi/gui/graphicengine/impl/jogl/NEWTWindow.java @@ -483,7 +483,6 @@ public void display(final GLAutoDrawable glad) { final boolean linear = windowZoom % (int) windowZoom != 0f; if (refreshViewport) { - System.err.println("[[[REFVP"); refreshViewport = false; gl.glViewport(0, 0, realWindowSize[0], realWindowSize[1]); diff --git a/teavm/src/main/java/ar/com/hjg/pngj/BufferedStreamFeeder.java b/teavm/src/main/java/ar/com/hjg/pngj/BufferedStreamFeeder.java deleted file mode 100644 index 1b2b548..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/BufferedStreamFeeder.java +++ /dev/null @@ -1,208 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.IOException; -import java.io.InputStream; - -/** - * Reads bytes from an input stream, and feeds a IBytesConsumer. - */ -public class BufferedStreamFeeder { - - private InputStream stream; - private byte[] buf; - private int pendinglen; // bytes read and stored in buf that have not yet still been fed to - // IBytesConsumer - private int offset; - private boolean eof = false; - private boolean closeStream = true; - private boolean failIfNoFeed = false; - - private static final int DEFAULTSIZE = 8192; - - /** By default, the stream will be closed on close() */ - public BufferedStreamFeeder(final InputStream is) { - this(is, BufferedStreamFeeder.DEFAULTSIZE); - } - - public BufferedStreamFeeder(final InputStream is, final int bufsize) { - stream = is; - buf = new byte[bufsize < 1 ? BufferedStreamFeeder.DEFAULTSIZE : bufsize]; - } - - /** - * Returns inputstream - * - * @return Input Stream from which bytes are read - */ - public InputStream getStream() { - return stream; - } - - /** - * Feeds bytes to the consumer
- * Returns bytes actually consumed
- * This should return 0 only if the stream is EOF or the consumer is done - */ - public int feed(final IBytesConsumer consumer) { - return feed(consumer, Integer.MAX_VALUE); - } - - /** - * Feeds the consumer (with at most maxbytes)
- * Returns 0 only if the stream is EOF (or maxbytes=0). Returns negative is - * the consumer is done.
- * It can return less than maxbytes (that doesn't mean that the consumer or - * the input stream is done) - */ - public int feed(final IBytesConsumer consumer, final int maxbytes) { - if (pendinglen == 0) - refillBuffer(); - final int tofeed = maxbytes >= 0 && maxbytes < pendinglen ? maxbytes : pendinglen; - int n = 0; - if (tofeed > 0) { - n = consumer.consume(buf, offset, tofeed); - if (n > 0) { - offset += n; - pendinglen -= n; - } - } - if (n < 1 && failIfNoFeed) - throw new PngjInputException("Failed to feed bytes (premature ending?)"); - return n; - } - - /** - * Feeds as much bytes as it can to the consumer, in a loop.
- * Returns bytes actually consumed
- * This will stop when either the input stream is eof, or when the consumer - * refuses to eat more bytes. The caller can - * distinguish both cases by calling {@link #hasMoreToFeed()} - */ - public long feedAll(final IBytesConsumer consumer) { - long n = 0; - while (hasMoreToFeed()) { - final int n1 = feed(consumer); - if (n1 < 1) - break; - n += n1; - } - return n; - } - - /** - * Feeds exactly nbytes, retrying if necessary - * - * @param consumer - * Consumer - * @param nbytes - * Number of bytes - * @return true if success, false otherwise (EOF on stream, or consumer is - * done) - */ - public boolean feedFixed(final IBytesConsumer consumer, final int nbytes) { - int remain = nbytes; - while (remain > 0) { - final int n = feed(consumer, remain); - if (n < 1) - return false; - remain -= n; - } - return true; - } - - /** - * If there are not pending bytes to be consumed tries to fill the buffer - * with bytes from the stream. - */ - protected void refillBuffer() { - if (pendinglen > 0 || eof) - return; // only if not pending data - try { - // try to read - offset = 0; - pendinglen = stream.read(buf); - if (pendinglen < 0) { - close(); - return; - } else - return; - } catch (final IOException e) { - throw new PngjInputException(e); - } - } - - /** - * Returuns true if we have more data to fed the consumer. This internally - * tries to grabs more bytes from the stream - * if necessary - */ - public boolean hasMoreToFeed() { - if (eof) - return pendinglen > 0; - else - refillBuffer(); - return pendinglen > 0; - } - - /** - * @param closeStream - * If true, the underlying stream will be closed on when close() - * is called - */ - public void setCloseStream(final boolean closeStream) { - this.closeStream = closeStream; - } - - /** - * Closes this object. - * - * Sets EOF=true, and closes the stream if closeStream is true - * - * This can be called internally, or from outside. - * - * Idempotent, secure, never throws exception. - **/ - public void close() { - eof = true; - buf = null; - pendinglen = 0; - offset = 0; - if (stream != null && closeStream) - try { - stream.close(); - } catch (final Exception e) { - // PngHelperInternal.LOGGER.log(Level.WARNING, "Exception closing stream", e); - } - stream = null; - } - - /** - * Sets a new underlying inputstream. This allows to reuse this object. The - * old underlying is not closed and the state - * is not reset (you should call close() previously if you want that) - * - * @param is - */ - public void setInputStream(final InputStream is) { // to reuse this object - stream = is; - eof = false; - } - - /** - * @return EOF on stream, or close() was called - */ - public boolean isEof() { - return eof; - } - - /** - * If this flag is set (default: false), any call to feed() that returns - * zero (no byte feed) will throw an exception. - * This is useful to be sure of avoid infinite loops in some scenarios. - * - * @param failIfNoFeed - */ - public void setFailIfNoFeed(final boolean failIfNoFeed) { - this.failIfNoFeed = failIfNoFeed; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ChunkReader.java b/teavm/src/main/java/ar/com/hjg/pngj/ChunkReader.java deleted file mode 100644 index a33934b..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ChunkReader.java +++ /dev/null @@ -1,231 +0,0 @@ -package ar.com.hjg.pngj; - -import ar.com.hjg.pngj.chunks.ChunkRaw; - -/** - * Parses a PNG chunk, consuming bytes in one mode: - * {@link ChunkReaderMode#BUFFER}, {@link ChunkReaderMode#PROCESS}, - * {@link ChunkReaderMode#SKIP}. - *

- * It calls {@link #chunkDone()} when done. Also calls - * {@link #processData(byte[], int, int)} if PROCESS - * mode. Apart from thas, it's totally agnostic (it doesn't know about IDAT - * chunks, or PNG general structure) - *

- * The object wraps a ChunkRaw instance (content filled only if BUFFER mode); it - * should be short lived (one instance - * created for each chunk, and discarded after reading), but the wrapped - * chunkRaw can be (usually is) long lived. - */ -public abstract class ChunkReader { - - /** - * see {@link ChunkReaderMode} - */ - public final ChunkReaderMode mode; - private final ChunkRaw chunkRaw; - - private boolean crcCheck; // by default, this is false for SKIP, true elsewhere - - /** - * How many bytes have been read for this chunk, data only - */ - protected int read = 0; - private int crcn = 0; // how many bytes have been read from crc - - /** - * Modes of ChunkReader chunk processing. - */ - public enum ChunkReaderMode { - /** - * Stores full chunk data in buffer - */ - BUFFER, - /** - * Does not store content, processes on the fly, calling processData() - * for each partial read - */ - PROCESS, - /** - * Does not store nor process - implies crcCheck=false (by default). - */ - SKIP; - } - - /** - * The constructor creates also a chunkRaw, preallocated if mode = - * ChunkReaderMode.BUFFER - * - * @param clen - * @param id - * @param offsetInPng - * Informational, is stored in chunkRaw - * @param mode - */ - public ChunkReader(final int clen, final String id, final long offsetInPng, final ChunkReaderMode mode) { - if (mode == null || id.length() != 4 || clen < 0) - throw new PngjExceptionInternal("Bad chunk paramenters: " + mode); - this.mode = mode; - chunkRaw = new ChunkRaw(clen, id, mode == ChunkReaderMode.BUFFER); - chunkRaw.setOffset(offsetInPng); - crcCheck = mode == ChunkReaderMode.SKIP ? false : true; // can be changed with setter - } - - /** - * Returns raw chunk (data can be empty or not, depending on - * ChunkReaderMode) - * - * @return Raw chunk - never null - */ - public ChunkRaw getChunkRaw() { - return chunkRaw; - } - - /** - * Consumes data for the chunk (data and CRC). This never consumes more - * bytes than for this chunk. - * - * In HOT_PROCESS can call processData() (not more than once) - * - * If this ends the chunk (included CRC) it checks CRC (if checking) and - * calls chunkDone() - * - * @param buf - * @param off - * @param len - * @return How many bytes have been consumed - */ - public final int feedBytes(final byte[] buf, int off, int len) { - if (len == 0) - return 0; - if (len < 0) - throw new PngjException("negative length??"); - if (read == 0 && crcn == 0 && crcCheck) - chunkRaw.updateCrc(chunkRaw.idbytes, 0, 4); // initializes crc calculation with the Chunk ID - int bytesForData = chunkRaw.len - read; // bytesForData : bytes to be actually read from chunk data - if (bytesForData > len) - bytesForData = len; - // we want to call processData even for empty chunks (IEND:bytesForData=0) at least once - if (bytesForData > 0 || crcn == 0) { - // in buffer mode we compute the CRC at the end - if (crcCheck && mode != ChunkReaderMode.BUFFER && bytesForData > 0) - chunkRaw.updateCrc(buf, off, bytesForData); - - if (mode == ChunkReaderMode.BUFFER) { - // just copy the contents to the internal buffer - if (chunkRaw.data != buf && bytesForData > 0) - // if the buffer passed if the same as this one, we don't copy the caller should know what he's doing - System.arraycopy(buf, off, chunkRaw.data, read, bytesForData); - } else if (mode == ChunkReaderMode.PROCESS) - processData(read, buf, off, bytesForData); - else { - // mode == ChunkReaderMode.SKIP; nothing to do - } - read += bytesForData; - off += bytesForData; - len -= bytesForData; - } - int crcRead = 0; - if (read == chunkRaw.len) { // data done - read crc? - crcRead = 4 - crcn; - if (crcRead > len) - crcRead = len; - if (crcRead > 0) { - if (buf != chunkRaw.crcval) - System.arraycopy(buf, off, chunkRaw.crcval, crcn, crcRead); - crcn += crcRead; - if (crcn == 4) { - if (crcCheck) { - if (mode == ChunkReaderMode.BUFFER) - chunkRaw.updateCrc(chunkRaw.data, 0, chunkRaw.len); - chunkRaw.checkCrc(); - } - chunkDone(); - } - } - } - return bytesForData + crcRead; - } - - /** - * Chunks has been read - * - * @return true if we have read all chunk, including trailing CRC - */ - public final boolean isDone() { - return crcn == 4; // has read all 4 bytes from the crc - } - - /** - * Determines if CRC should be checked. This should be called before - * starting reading. - * - * @param crcCheck - */ - public void setCrcCheck(final boolean crcCheck) { - if (read != 0 && crcCheck && !this.crcCheck) - throw new PngjException("too late!"); - this.crcCheck = crcCheck; - } - - /** - * This method will only be called in PROCESS mode, probably several times, - * each time with a new fragment of data - * inside the chunk. For chunks with zero-length data, this will still be - * called once. - * - * It's guaranteed that the data corresponds exclusively to this chunk data - * (no crc, no data from no other chunks, ) - * - * @param offsetInchunk - * data bytes that had already been read/processed for this chunk - * @param buf - * @param off - * @param len - */ - protected abstract void processData(int offsetInchunk, byte[] buf, int off, int len); - - /** - * This method will be called (in all modes) when the full chunk -including - * crc- has been read - */ - protected abstract void chunkDone(); - - public boolean isFromDeflatedSet() { - return false; - } - - @Override - public int hashCode() { - final int prime = 31; - int result = 1; - result = prime * result + (chunkRaw == null ? 0 : chunkRaw.hashCode()); - return result; - } - - /** - * Equality (and hash) is basically delegated to the ChunkRaw - */ - @Override - public boolean equals(final Object obj) { // delegates to chunkraw - if (this == obj) - return true; - if (obj == null) - return false; - if (getClass() != obj.getClass()) - return false; - final ChunkReader other = (ChunkReader) obj; - if (chunkRaw == null) { - if (other.chunkRaw != null) - return false; - } else if (!chunkRaw.equals(other.chunkRaw)) - return false; - return true; - } - - @Override - public String toString() { - return chunkRaw.toString(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqBuffering.java b/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqBuffering.java deleted file mode 100644 index 541eafd..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqBuffering.java +++ /dev/null @@ -1,30 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * This loads the png as a plain sequence of chunks, buffering all - * - * Useful to do things like insert or delete a ancilllary chunk. This does not - * distinguish IDAT from others - **/ -public class ChunkSeqBuffering extends ChunkSeqReader { - protected boolean checkCrc = true; - - public ChunkSeqBuffering() { - super(); - } - - @Override - protected boolean isIdatKind(final String id) { - return false; - } - - @Override - protected boolean shouldCheckCrc(final int len, final String id) { - return checkCrc; - } - - public void setCheckCrc(final boolean checkCrc) { - this.checkCrc = checkCrc; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqReader.java b/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqReader.java deleted file mode 100644 index 5516615..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqReader.java +++ /dev/null @@ -1,432 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.FileInputStream; -import java.io.FileNotFoundException; -import java.io.InputStream; -import java.util.Arrays; - -import ar.com.hjg.pngj.ChunkReader.ChunkReaderMode; -import ar.com.hjg.pngj.chunks.ChunkHelper; - -/** - * Consumes a stream of bytes that consist of a series of PNG-like chunks. - *

- * This has little intelligence, it's quite low-level and general (it could even - * be used for a MNG stream, for example). - * It supports signature recognition and idat deflate - */ -public class ChunkSeqReader implements IBytesConsumer { - - protected static final int SIGNATURE_LEN = 8; - protected final boolean withSignature; - - private final byte[] buf0 = new byte[8]; // for signature or chunk starts - private int buf0len = 0; - - private boolean signatureDone = false; - private boolean done = false; // ended, normally or not - - private int chunkCount = 0; - - private long bytesCount = 0; - - private DeflatedChunksSet curReaderDeflatedSet; // one instance is created for each - // "idat-like set". Normally one. - - private ChunkReader curChunkReader; - - private long idatBytes; // this is only for the IDAT (not mrerely "idat-like") - - /** - * Creates a ChunkSeqReader (with signature) - */ - public ChunkSeqReader() { - this(true); - } - - /** - * @param withSignature - * If true, the stream is assumed be prepended by 8 bit signature - */ - public ChunkSeqReader(final boolean withSignature) { - this.withSignature = withSignature; - signatureDone = !withSignature; - } - - /** - * Consumes (in general, partially) a number of bytes. A single call never - * involves more than one chunk. - * - * When the signature is read, it calls checkSignature() - * - * When the start of a chunk is detected, it calls - * {@link #startNewChunk(int, String, long)} - * - * When data from a chunk is being read, it delegates to - * {@link ChunkReader#feedBytes(byte[], int, int)} - * - * The caller might want to call this method more than once in succesion - * - * This should rarely be overriden - * - * @param buffer - * @param offset - * Offset in buffer - * @param len - * Valid bytes that can be consumed - * @return processed bytes, in the 1-len range. -1 if done. Only returns 0 - * if len=0. - **/ - @Override - public int consume(final byte[] buffer, final int offset, final int len) { - if (done) - return -1; - if (len == 0) - return 0; // nothing to do - if (len < 0) - throw new PngjInputException("Bad len: " + len); - int processed = 0; - if (signatureDone) { - if (curChunkReader == null || curChunkReader.isDone()) { // new chunk: read first 8 bytes - int read0 = 8 - buf0len; - if (read0 > len) - read0 = len; - System.arraycopy(buffer, offset, buf0, buf0len, read0); - buf0len += read0; - processed += read0; - bytesCount += read0; - // len -= read0; - // offset += read0; - if (buf0len == 8) { // end reading chunk length and id - chunkCount++; - final int clen = PngHelperInternal.readInt4fromBytes(buf0, 0); - final String cid = ChunkHelper.toString(buf0, 4, 4); - startNewChunk(clen, cid, bytesCount - 8); - buf0len = 0; - } - } else { // reading chunk, delegates to curChunkReader - final int read1 = curChunkReader.feedBytes(buffer, offset, len); - processed += read1; - bytesCount += read1; - } - } else { // reading signature - int read = ChunkSeqReader.SIGNATURE_LEN - buf0len; - if (read > len) - read = len; - System.arraycopy(buffer, offset, buf0, buf0len, read); - buf0len += read; - if (buf0len == ChunkSeqReader.SIGNATURE_LEN) { - checkSignature(buf0); - buf0len = 0; - signatureDone = true; - } - processed += read; - bytesCount += read; - } - return processed; - } - - /** - * Trys to feeds exactly len bytes, calling - * {@link #consume(byte[], int, int)} retrying if necessary. - * - * This should only be used in callback mode - * - * @return true if succceded - */ - public boolean feedAll(final byte[] buf, int off, int len) { - while (len > 0) { - final int n = consume(buf, off, len); - if (n < 1) - return false; - len -= n; - off += n; - } - return true; - } - - /** - * Called for all chunks when a chunk start has been read (id and length), - * before the chunk data itself is read. It - * creates a new ChunkReader (field accesible via - * {@link #getCurChunkReader()}) in the corresponding mode, and - * eventually a curReaderDeflatedSet.(field accesible via - * {@link #getCurReaderDeflatedSet()}) - * - * To decide the mode and options, it calls - * {@link #shouldCheckCrc(int, String)}, - * {@link #shouldSkipContent(int, String)}, {@link #isIdatKind(String)}. - * Those methods should be overriden in - * preference to this; if overriden, this should be called first. - * - * The respective {@link ChunkReader#chunkDone()} method is directed to this - * {@link #postProcessChunk(ChunkReader)}. - * - * Instead of overriding this, see also - * {@link #createChunkReaderForNewChunk(String, int, long, boolean)} - */ - protected void startNewChunk(final int len, final String id, final long offset) { - if (id.equals(ChunkHelper.IDAT)) - idatBytes += len; - final boolean checkCrc = shouldCheckCrc(len, id); - final boolean skip = shouldSkipContent(len, id); - final boolean isIdatType = isIdatKind(id); - // PngHelperInternal.debug("start new chunk id=" + id + " off=" + offset + " skip=" + skip + " idat=" + - // isIdatType); - // first see if we should terminate an active curReaderDeflatedSet - boolean forCurrentIdatSet = false; - if (curReaderDeflatedSet != null) - forCurrentIdatSet = curReaderDeflatedSet.ackNextChunkId(id); - if (isIdatType && !skip) { // IDAT non skipped: create a DeflatedChunkReader owned by a idatSet - if (!forCurrentIdatSet) { - if (curReaderDeflatedSet != null && !curReaderDeflatedSet.isDone()) - throw new PngjInputException("new IDAT-like chunk when previous was not done"); - curReaderDeflatedSet = createIdatSet(id); - } - curChunkReader = new DeflatedChunkReader(len, id, checkCrc, offset, curReaderDeflatedSet) { - @Override - protected void chunkDone() { - super.chunkDone(); - postProcessChunk(this); - } - }; - - } else { // for non-idat chunks (or skipped idat like) - curChunkReader = createChunkReaderForNewChunk(id, len, offset, skip); - if (!checkCrc) - curChunkReader.setCrcCheck(false); - } - } - - /** - * This will be called for all chunks (even skipped), except for IDAT-like - * non-skiped chunks - * - * The default behaviour is to create a ChunkReader in BUFFER mode (or SKIP - * if skip==true) that calls - * {@link #postProcessChunk(ChunkReader)} (always) when done. - * - * @param id - * Chunk id - * @param len - * Chunk length - * @param offset - * offset inside PNG stream , merely informative - * @param skip - * flag: is true, the content will not be buffered (nor - * processed) - * @return a newly created ChunkReader that will create the ChunkRaw and - * then discarded - */ - protected ChunkReader createChunkReaderForNewChunk(final String id, final int len, final long offset, - final boolean skip) { - return new ChunkReader(len, id, offset, skip ? ChunkReaderMode.SKIP : ChunkReaderMode.BUFFER) { - @Override - protected void chunkDone() { - postProcessChunk(this); - } - - @Override - protected void processData(final int offsetinChhunk, final byte[] buf, final int off, final int len) { - throw new PngjExceptionInternal("should never happen"); - } - }; - } - - /** - * This is called after a chunk is read, in all modes - * - * This implementation only chenks the id of the first chunk, and process - * the IEND chunk (sets done=true) - ** - * Further processing should be overriden (call this first!) - **/ - protected void postProcessChunk(final ChunkReader chunkR) { // called after chunk is read - if (chunkCount == 1) { - final String cid = firstChunkId(); - if (cid != null && !cid.equals(chunkR.getChunkRaw().id)) - throw new PngjInputException("Bad first chunk: " + chunkR.getChunkRaw().id + " expected: " + firstChunkId()); - } - if (chunkR.getChunkRaw().id.equals(endChunkId())) - done = true; - } - - /** - * DeflatedChunksSet factory. This implementation is quite dummy, it usually - * should be overriden. - */ - protected DeflatedChunksSet createIdatSet(final String id) { - return new DeflatedChunksSet(id, 1024, 1024); // sizes: arbitrary This should normally be - // overriden - } - - /** - * Decides if this Chunk is of "IDAT" kind (in concrete: if it is, and if - * it's not to be skiped, a DeflatedChunksSet - * will be created to deflate it and process+ the deflated data) - * - * This implementation always returns always false - * - * @param id - */ - protected boolean isIdatKind(final String id) { - return false; - } - - /** - * Chunks can be skipped depending on id and/or length. Skipped chunks are - * still processed, but their data will be - * null, and CRC will never checked - * - * @param len - * @param id - */ - protected boolean shouldSkipContent(final int len, final String id) { - return false; - } - - protected boolean shouldCheckCrc(final int len, final String id) { - return true; - } - - /** - * Throws PngjInputException if bad signature - * - * @param buf - * Signature. Should be of length 8 - */ - protected void checkSignature(final byte[] buf) { - if (!Arrays.equals(buf, PngHelperInternal.getPngIdSignature())) - throw new PngjInputException("Bad PNG signature"); - } - - /** - * If false, we are still reading the signature - * - * @return true if signature has been read (or if we don't have signature) - */ - public boolean isSignatureDone() { - return signatureDone; - } - - /** - * If true, we either have processe the IEND chunk, or close() has been - * called, or a fatal error has happened - */ - public boolean isDone() { - return done; - } - - /** - * total of bytes read (buffered or not) - */ - public long getBytesCount() { - return bytesCount; - } - - /** - * @return Chunks already read, including partial reading (currently - * reading) - */ - public int getChunkCount() { - return chunkCount; - } - - /** - * Currently reading chunk, or just ended reading - * - * @return null only if still reading signature - */ - public ChunkReader getCurChunkReader() { - return curChunkReader; - } - - /** - * The latest deflated set (typically IDAT chunks) reader. Notice that there - * could be several idat sets (eg for APNG) - */ - public DeflatedChunksSet getCurReaderDeflatedSet() { - return curReaderDeflatedSet; - } - - /** - * Closes this object and release resources. For normal termination or - * abort. Secure and idempotent. - */ - public void close() { // forced closing - if (curReaderDeflatedSet != null) - curReaderDeflatedSet.close(); - done = true; - } - - /** - * Returns true if we are not in middle of a chunk: we have just ended - * reading past chunk , or we are at the start, or - * end of signature, or we are done - */ - public boolean isAtChunkBoundary() { - return bytesCount == 0 || bytesCount == 8 || done || curChunkReader == null || curChunkReader.isDone(); - } - - /** - * Which should be the id of the first chunk - * - * @return null if you don't want to check it - */ - protected String firstChunkId() { - return "IHDR"; - } - - /** - * Helper method, reports amount of bytes inside IDAT chunks. - * - * @return Bytes in IDAT chunks - */ - public long getIdatBytes() { - return idatBytes; - } - - /** - * Which should be the id of the last chunk - * - * @return "IEND" - */ - protected String endChunkId() { - return "IEND"; - } - - /** - * Reads all content from a file. Helper method, only for callback mode - */ - public void feedFromFile(final File f) { - try { - feedFromInputStream(new FileInputStream(f), true); - } catch (final FileNotFoundException e) { - throw new PngjInputException(e.getMessage()); - } - } - - /** - * Reads all content from an input stream. Helper method, only for callback - * mode - * - * @param is - * @param closeStream - * Closes the input stream when done (or if error) - */ - public void feedFromInputStream(final InputStream is, final boolean closeStream) { - final BufferedStreamFeeder sf = new BufferedStreamFeeder(is); - sf.setCloseStream(closeStream); - try { - sf.feedAll(this); - } finally { - close(); - sf.close(); - } - } - - public void feedFromInputStream(final InputStream is) { - feedFromInputStream(is, true); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqReaderPng.java b/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqReaderPng.java deleted file mode 100644 index 18b4777..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqReaderPng.java +++ /dev/null @@ -1,310 +0,0 @@ -package ar.com.hjg.pngj; - -import java.util.HashSet; -import java.util.List; -import java.util.Set; - -import ar.com.hjg.pngj.ChunkReader.ChunkReaderMode; -import ar.com.hjg.pngj.chunks.ChunkFactory; -import ar.com.hjg.pngj.chunks.ChunkHelper; -import ar.com.hjg.pngj.chunks.ChunkLoadBehaviour; -import ar.com.hjg.pngj.chunks.ChunksList; -import ar.com.hjg.pngj.chunks.PngChunk; -import ar.com.hjg.pngj.chunks.PngChunkIDAT; -import ar.com.hjg.pngj.chunks.PngChunkIEND; -import ar.com.hjg.pngj.chunks.PngChunkIHDR; -import ar.com.hjg.pngj.chunks.PngChunkPLTE; - -/** - * Adds to ChunkSeqReader the storing of PngChunk, with a PngFactory, and - * imageInfo + deinterlacer. - *

- * Most usual PNG reading should use this class, or a {@link PngReader}, which - * is a thin wrapper over this. - */ -public class ChunkSeqReaderPng extends ChunkSeqReader { - - protected ImageInfo imageInfo; // initialized at parsing the IHDR - protected ImageInfo curImageInfo; // can vary, for apng - protected Deinterlacer deinterlacer; - protected int currentChunkGroup = -1; - - /** - * All chunks, but some of them can have the buffer empty (IDAT and skipped) - */ - protected ChunksList chunksList = null; - protected final boolean callbackMode; - private long bytesAncChunksLoaded = 0; // bytes loaded from buffered chunks non-critical chunks (data only) - - private boolean checkCrc = true; - - // --- parameters to be set prior to reading --- - private boolean includeNonBufferedChunks = false; - - private final Set chunksToSkip = new HashSet<>(); - private long maxTotalBytesRead = 0; - private long skipChunkMaxSize = 0; - private long maxBytesMetadata = 0; - private IChunkFactory chunkFactory; - private ChunkLoadBehaviour chunkLoadBehaviour = ChunkLoadBehaviour.LOAD_CHUNK_ALWAYS; - - public ChunkSeqReaderPng(final boolean callbackMode) { - super(); - this.callbackMode = callbackMode; - chunkFactory = new ChunkFactory(); // default factory - } - - private void updateAndCheckChunkGroup(final String id) { - if (id.equals(PngChunkIHDR.ID)) { // IDHR - if (currentChunkGroup < 0) - currentChunkGroup = ChunksList.CHUNK_GROUP_0_IDHR; - else - throw new PngjInputException("unexpected chunk " + id); - } else if (id.equals(PngChunkPLTE.ID)) { // PLTE - if (currentChunkGroup == ChunksList.CHUNK_GROUP_0_IDHR || currentChunkGroup == ChunksList.CHUNK_GROUP_1_AFTERIDHR) - currentChunkGroup = ChunksList.CHUNK_GROUP_2_PLTE; - else - throw new PngjInputException("unexpected chunk " + id); - } else if (id.equals(PngChunkIDAT.ID)) { // IDAT (no necessarily the first) - if (currentChunkGroup >= ChunksList.CHUNK_GROUP_0_IDHR && currentChunkGroup <= ChunksList.CHUNK_GROUP_4_IDAT) - currentChunkGroup = ChunksList.CHUNK_GROUP_4_IDAT; - else - throw new PngjInputException("unexpected chunk " + id); - } else if (id.equals(PngChunkIEND.ID)) { // END - if (currentChunkGroup >= ChunksList.CHUNK_GROUP_4_IDAT) - currentChunkGroup = ChunksList.CHUNK_GROUP_6_END; - else - throw new PngjInputException("unexpected chunk " + id); - } else if (currentChunkGroup <= ChunksList.CHUNK_GROUP_1_AFTERIDHR) - currentChunkGroup = ChunksList.CHUNK_GROUP_1_AFTERIDHR; - else if (currentChunkGroup <= ChunksList.CHUNK_GROUP_3_AFTERPLTE) - currentChunkGroup = ChunksList.CHUNK_GROUP_3_AFTERPLTE; - else - currentChunkGroup = ChunksList.CHUNK_GROUP_5_AFTERIDAT; - } - - @Override - public boolean shouldSkipContent(final int len, final String id) { - if (super.shouldSkipContent(len, id)) - return true; - if (ChunkHelper.isCritical(id)) - return false;// critical chunks are never skipped - if (maxTotalBytesRead > 0 && len + getBytesCount() > maxTotalBytesRead) - throw new PngjInputException("Maximum total bytes to read exceeeded: " + maxTotalBytesRead + " offset:" + getBytesCount() + " len=" + len); - if (chunksToSkip.contains(id)) - return true; // specific skip - if (skipChunkMaxSize > 0 && len > skipChunkMaxSize) - return true; // too big chunk - if (maxBytesMetadata > 0 && len > maxBytesMetadata - bytesAncChunksLoaded) - return true; // too much ancillary chunks loaded - switch (chunkLoadBehaviour) { - case LOAD_CHUNK_IF_SAFE: - if (!ChunkHelper.isSafeToCopy(id)) - return true; - break; - case LOAD_CHUNK_NEVER: - return true; - default: - break; - } - return false; - } - - public long getBytesChunksLoaded() { - return bytesAncChunksLoaded; - } - - public int getCurrentChunkGroup() { - return currentChunkGroup; - } - - public void setChunksToSkip(final String... chunksToSkip) { - this.chunksToSkip.clear(); - for (final String c : chunksToSkip) - this.chunksToSkip.add(c); - } - - public void addChunkToSkip(final String chunkToSkip) { - chunksToSkip.add(chunkToSkip); - } - - public void dontSkipChunk(final String chunkToSkip) { - chunksToSkip.remove(chunkToSkip); - } - - public boolean firstChunksNotYetRead() { - return getCurrentChunkGroup() < ChunksList.CHUNK_GROUP_4_IDAT; - } - - @Override - protected void postProcessChunk(final ChunkReader chunkR) { - super.postProcessChunk(chunkR); - if (chunkR.getChunkRaw().id.equals(PngChunkIHDR.ID)) { - final PngChunkIHDR ch = new PngChunkIHDR(null); - ch.parseFromRaw(chunkR.getChunkRaw()); - imageInfo = ch.createImageInfo(); - curImageInfo = imageInfo; - if (ch.isInterlaced()) - deinterlacer = new Deinterlacer(curImageInfo); - chunksList = new ChunksList(imageInfo); - } - if (chunkR.mode == ChunkReaderMode.BUFFER && countChunkTypeAsAncillary(chunkR.getChunkRaw().id)) - bytesAncChunksLoaded += chunkR.getChunkRaw().len; - if (chunkR.mode == ChunkReaderMode.BUFFER || includeNonBufferedChunks) { - final PngChunk chunk = chunkFactory.createChunk(chunkR.getChunkRaw(), getImageInfo()); - chunksList.appendReadChunk(chunk, currentChunkGroup); - } - if (isDone()) - processEndPng(); - } - - protected boolean countChunkTypeAsAncillary(final String id) { - return !ChunkHelper.isCritical(id); - } - - @Override - protected DeflatedChunksSet createIdatSet(final String id) { - final IdatSet ids = new IdatSet(id, getCurImgInfo(), deinterlacer); - ids.setCallbackMode(callbackMode); - return ids; - } - - public IdatSet getIdatSet() { - final DeflatedChunksSet c = getCurReaderDeflatedSet(); - return c instanceof IdatSet ? (IdatSet) c : null; - } - - @Override - protected boolean isIdatKind(final String id) { - return id.equals(PngChunkIDAT.ID); - } - - @Override - public int consume(final byte[] buf, final int off, final int len) { - return super.consume(buf, off, len); - } - - /** - * sets a custom chunk factory. This is typically called with a custom class - * extends ChunkFactory, to adds custom - * chunks to the default well-know ones - * - * @param chunkFactory - */ - public void setChunkFactory(final IChunkFactory chunkFactory) { - this.chunkFactory = chunkFactory; - } - - /** - * Things to be done after IEND processing. This is not called if - * prematurely closed. - */ - protected void processEndPng() { - // nothing to do - } - - public ImageInfo getImageInfo() { - return imageInfo; - } - - public boolean isInterlaced() { - return deinterlacer != null; - } - - public Deinterlacer getDeinterlacer() { - return deinterlacer; - } - - @Override - protected void startNewChunk(final int len, final String id, final long offset) { - updateAndCheckChunkGroup(id); - super.startNewChunk(len, id, offset); - } - - @Override - public void close() { - if (currentChunkGroup != ChunksList.CHUNK_GROUP_6_END)// this could only happen if forced close - currentChunkGroup = ChunksList.CHUNK_GROUP_6_END; - super.close(); - } - - public List getChunks() { - return chunksList.getChunks(); - } - - public void setMaxTotalBytesRead(final long maxTotalBytesRead) { - this.maxTotalBytesRead = maxTotalBytesRead; - } - - public long getSkipChunkMaxSize() { - return skipChunkMaxSize; - } - - public void setSkipChunkMaxSize(final long skipChunkMaxSize) { - this.skipChunkMaxSize = skipChunkMaxSize; - } - - public long getMaxBytesMetadata() { - return maxBytesMetadata; - } - - public void setMaxBytesMetadata(final long maxBytesMetadata) { - this.maxBytesMetadata = maxBytesMetadata; - } - - public long getMaxTotalBytesRead() { - return maxTotalBytesRead; - } - - @Override - protected boolean shouldCheckCrc(final int len, final String id) { - return checkCrc; - } - - public boolean isCheckCrc() { - return checkCrc; - } - - public void setCheckCrc(final boolean checkCrc) { - this.checkCrc = checkCrc; - } - - public boolean isCallbackMode() { - return callbackMode; - } - - public Set getChunksToSkip() { - return chunksToSkip; - } - - public void setChunkLoadBehaviour(final ChunkLoadBehaviour chunkLoadBehaviour) { - this.chunkLoadBehaviour = chunkLoadBehaviour; - } - - public ImageInfo getCurImgInfo() { - return curImageInfo; - } - - public void updateCurImgInfo(final ImageInfo iminfo) { - if (!iminfo.equals(curImageInfo)) - curImageInfo = iminfo; - if (deinterlacer != null) - deinterlacer = new Deinterlacer(curImageInfo); // we could reset it, but... - } - - /** - * If true, the chunks with no data (because skipped or because processed - * like IDAT-type) are still stored in the - * PngChunks list, which might be more informative. - * - * Setting this to false saves a few bytes - * - * Default: false - * - * @param includeNonBufferedChunks - */ - public void setIncludeNonBufferedChunks(final boolean includeNonBufferedChunks) { - this.includeNonBufferedChunks = includeNonBufferedChunks; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqSkipping.java b/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqSkipping.java deleted file mode 100644 index 96d765a..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ChunkSeqSkipping.java +++ /dev/null @@ -1,76 +0,0 @@ -package ar.com.hjg.pngj; - -import java.util.ArrayList; -import java.util.List; - -import ar.com.hjg.pngj.ChunkReader.ChunkReaderMode; -import ar.com.hjg.pngj.chunks.ChunkRaw; - -/** - * This simple reader skips all chunks contents and stores the chunkRaw in a - * list. Useful to read chunks structure. - * - * Optionally the contents might be processed. This doesn't distinguish IDAT - * chunks - */ -public class ChunkSeqSkipping extends ChunkSeqReader { - - private final List chunks = new ArrayList<>(); - private boolean skip = true; - - /** - * @param skipAll - * if true, contents will be truly skipped, and CRC will not be - * computed - */ - public ChunkSeqSkipping(final boolean skipAll) { - super(true); - skip = skipAll; - } - - public ChunkSeqSkipping() { - this(true); - } - - @Override - protected ChunkReader createChunkReaderForNewChunk(final String id, final int len, final long offset, - final boolean skip) { - return new ChunkReader(len, id, offset, skip ? ChunkReaderMode.SKIP : ChunkReaderMode.PROCESS) { - @Override - protected void chunkDone() { - postProcessChunk(this); - } - - @Override - protected void processData(final int offsetinChhunk, final byte[] buf, final int off, final int len) { - processChunkContent(getChunkRaw(), offsetinChhunk, buf, off, len); - } - }; - } - - protected void processChunkContent(final ChunkRaw chunkRaw, final int offsetinChhunk, final byte[] buf, - final int off, final int len) { - // does nothing - } - - @Override - protected void postProcessChunk(final ChunkReader chunkR) { - super.postProcessChunk(chunkR); - chunks.add(chunkR.getChunkRaw()); - } - - @Override - protected boolean shouldSkipContent(final int len, final String id) { - return skip; - } - - @Override - protected boolean isIdatKind(final String id) { - return false; - } - - public List getChunks() { - return chunks; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/DeflatedChunkReader.java b/teavm/src/main/java/ar/com/hjg/pngj/DeflatedChunkReader.java deleted file mode 100644 index 426f53e..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/DeflatedChunkReader.java +++ /dev/null @@ -1,78 +0,0 @@ -package ar.com.hjg.pngj; - -import ar.com.hjg.pngj.chunks.PngChunkFDAT; - -/** - * - * Specialization of ChunkReader, for IDAT-like chunks. These chunks are part of - * a set of similar chunks (contiguos - * normally, not necessariyl) which conforms a zlib stream - */ -public class DeflatedChunkReader extends ChunkReader { - - protected final DeflatedChunksSet deflatedChunksSet; - protected boolean alsoBuffer = false; - - protected boolean skipBytes = false; // fDAT (APNG) skips 4 bytes) - protected byte[] skippedBytes; // only for fDAT - protected int seqNumExpected = -1; // only for fDAT - - public DeflatedChunkReader(final int clen, final String chunkid, final boolean checkCrc, final long offsetInPng, final DeflatedChunksSet iDatSet) { - super(clen, chunkid, offsetInPng, ChunkReaderMode.PROCESS); - deflatedChunksSet = iDatSet; - if (chunkid.equals(PngChunkFDAT.ID)) { - skipBytes = true; - skippedBytes = new byte[4]; - } - iDatSet.appendNewChunk(this); - } - - /** - * Delegates to ChunkReaderDeflatedSet.processData() - */ - @Override - protected void processData(final int offsetInchunk, final byte[] buf, int off, int len) { - if (skipBytes && offsetInchunk < 4) - for (int oc = offsetInchunk; oc < 4 && len > 0; oc++, off++, len--) - skippedBytes[oc] = buf[off]; - if (len > 0) { // delegate to idatSet - deflatedChunksSet.processBytes(buf, off, len); - if (alsoBuffer) - System.arraycopy(buf, off, getChunkRaw().data, read, len); - } - } - - /** - * only a stupid check for fDAT (I wonder how many APGN readers do this) - */ - @Override - protected void chunkDone() { - if (skipBytes && getChunkRaw().id.equals(PngChunkFDAT.ID)) - if (seqNumExpected >= 0) { - final int seqNum = PngHelperInternal.readInt4fromBytes(skippedBytes, 0); - if (seqNum != seqNumExpected) - throw new PngjInputException("bad chunk sequence for fDAT chunk " + seqNum + " expected " + seqNumExpected); - } - } - - @Override - public boolean isFromDeflatedSet() { - return true; - } - - /** - * In some rare cases you might want to also buffer the data? - */ - public void setAlsoBuffer() { - if (read > 0) - throw new RuntimeException("too late"); - alsoBuffer = true; - getChunkRaw().allocData(); - } - - /** only relevant for fDAT */ - public void setSeqNumExpected(final int seqNumExpected) { - this.seqNumExpected = seqNumExpected; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/DeflatedChunksSet.java b/teavm/src/main/java/ar/com/hjg/pngj/DeflatedChunksSet.java deleted file mode 100644 index b4feeb3..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/DeflatedChunksSet.java +++ /dev/null @@ -1,422 +0,0 @@ -package ar.com.hjg.pngj; - -import java.util.zip.DataFormatException; -import java.util.zip.Inflater; - -/** - * A set of IDAT-like chunks which, concatenated, form a zlib stream. - *

- * The inflated stream is intented to be read as a sequence of "rows", of which - * the caller knows the lengths (not - * necessary equal) and number. - *

- * Eg: For IDAT non-interlaced images, a row has bytesPerRow + 1 filter byte
- * For interlaced images, the lengths are variable. - *

- * This class can work in sync (polled) mode or async (callback) mode. But for - * callback mode the method - * processRowCallback() must be overriden - *

- * See {@link IdatSet}, which is mostly used and has a slightly simpler use.
- * See DeflatedChunkSetTest for example of use. - */ -public class DeflatedChunksSet { - - protected byte[] row; // a "row" here means a raw (uncopressed filtered) part of the IDAT stream, - // normally a image row (or subimage row for interlaced) plus a filter byte - private int rowfilled; // effective/valid length of row - private int rowlen; // what amount of bytes is to be interpreted as a complete "row". can change - // (for interlaced) - private int rown; // only coincide with image row if non-interlaced - incremented by - // setNextRowSize() - - /* - * States WAITING_FOR_INPUT ROW_READY WORK_DONE TERMINATED - * - * processBytes() is externally called, prohibited in READY (in DONE it's ignored) - * - * WARNING: inflater.finished() != DONE (not enough, not neccesary) DONE means that we have already uncompressed all - * the data of interest. - * - * In non-callback mode, prepareForNextRow() is also externally called, in - * - * Flow: - processBytes() calls inflateData() - inflateData() : if buffer is filled goes to READY else if ! - * inf.finished goes to WAITING else if any data goes to READY (incomplete data to be read) else goes to DONE - in - * Callback mode, after going to READY, n=processCallback() is called and then prepareForNextRow(n) is called. - in - * Polled mode, prepareForNextRow(n) must be called from outside (after checking state=READY) - prepareForNextRow(n) - * goes to DONE if n==0 calls inflateData() again - end() goes to DONE - */ - private enum State { - WAITING_FOR_INPUT, // waiting for more input - ROW_READY, // ready for consumption (might be less than fully filled), ephemeral for CALLBACK - // mode - WORK_DONE, // all data of interest has been read, but we might accept still more trailing chunks - // (we'll ignore them) - TERMINATED; // we are done, and also won't accept more IDAT chunks - - public boolean isDone() { - return this == WORK_DONE || this == TERMINATED; - } // the caller has already uncompressed all the data of interest or EOF - - public boolean isTerminated() { - return this == TERMINATED; - } // we dont accept more chunks - } - - State state = State.WAITING_FOR_INPUT; // never null - - private Inflater inf; - private final boolean infOwn; // true if we own the inflater (we created it) - - private DeflatedChunkReader curChunk; - - private boolean callbackMode = true; - private long nBytesIn = 0; // count the total compressed bytes that have been fed - private long nBytesOut = 0; // count the total uncompressed bytes - int chunkNum = -1; // incremented at each new chunk start - int firstChunqSeqNum = -1; // expected seq num for first chunk. used only for fDAT (APNG) - - /** - * All IDAT-like chunks that form a same DeflatedChunksSet should have the - * same id - */ - public final String chunkid; - - /** - * @param initialRowLen - * Length in bytes of first "row" (see description) - * @param maxRowLen - * Max length in bytes of "rows" - * @param inflater - * Can be null. If not null, must be already reset (and it must - * be closed/released by caller!) - */ - public DeflatedChunksSet(final String chunkid, final int initialRowLen, final int maxRowLen, final Inflater inflater, final byte[] buffer) { - this.chunkid = chunkid; - rowlen = initialRowLen; - if (initialRowLen < 1 || maxRowLen < initialRowLen) - throw new PngjException("bad inital row len " + initialRowLen); - if (inflater != null) { - inf = inflater; - infOwn = false; - } else { - inf = new Inflater(); - infOwn = true; // inflater is own, we will release on close() - } - row = buffer != null && buffer.length >= initialRowLen ? buffer : new byte[maxRowLen]; - rown = -1; - state = State.WAITING_FOR_INPUT; - try { - prepareForNextRow(initialRowLen); - } catch (final RuntimeException e) { - close(); - throw e; - } - } - - public DeflatedChunksSet(final String chunkid, final int initialRowLen, final int maxRowLen) { - this(chunkid, initialRowLen, maxRowLen, null, null); - } - - protected void appendNewChunk(final DeflatedChunkReader cr) { - // all chunks must have same id - if (!chunkid.equals(cr.getChunkRaw().id)) - throw new PngjInputException("Bad chunk inside IdatSet, id:" + cr.getChunkRaw().id + ", expected:" + chunkid); - curChunk = cr; - chunkNum++; - if (firstChunqSeqNum >= 0) - cr.setSeqNumExpected(chunkNum + firstChunqSeqNum); - } - - /** - * Feeds the inflater with the compressed bytes - * - * In poll mode, the caller should not call repeatedly this, without - * consuming first, checking - * isDataReadyForConsumer() - * - * @param buf - * @param off - * @param len - */ - protected void processBytes(final byte[] buf, final int off, final int len) { - nBytesIn += len; - // PngHelperInternal.LOGGER.info("processing compressed bytes in chunkreader : " + len); - if (len < 1 || state.isDone()) - return; - if (state == State.ROW_READY) - throw new PngjInputException("this should only be called if waitingForMoreInput"); - if (inf.needsDictionary() || !inf.needsInput()) - throw new RuntimeException("should not happen"); - inf.setInput(buf, off, len); - // PngHelperInternal.debug("entering processs bytes, state=" + state + - // " callback="+callbackMode); - if (isCallbackMode()) - while (inflateData()) { - final int nextRowLen = processRowCallback(); - prepareForNextRow(nextRowLen); - if (isDone()) - processDoneCallback(); - } - else - inflateData(); - } - - /* - * This never inflates more than one row This returns true if this has resulted in a row being ready and preprocessed - * with preProcessRow (in callback mode, we should call immediately processRowCallback() and - * prepareForNextRow(nextRowLen) - */ - private boolean inflateData() { - try { - // PngHelperInternal.debug("entering inflateData bytes, state=" + state + - // " callback="+callbackMode); - if (state == State.ROW_READY) - throw new PngjException("invalid state");// assert - if (state.isDone()) - return false; - int ninflated = 0; - if (row == null || row.length < rowlen) - row = new byte[rowlen]; // should not happen - if (rowfilled < rowlen && !inf.finished()) { - try { - ninflated = inf.inflate(row, rowfilled, rowlen - rowfilled); - } catch (final DataFormatException e) { - throw new PngjInputException("error decompressing zlib stream ", e); - } - rowfilled += ninflated; - nBytesOut += ninflated; - } - State nextstate = null; - if (rowfilled == rowlen) - nextstate = State.ROW_READY; // complete row, process it - else if (!inf.finished()) - nextstate = State.WAITING_FOR_INPUT; - else if (rowfilled > 0) - nextstate = State.ROW_READY; // complete row, process it - else - nextstate = State.WORK_DONE; // eof, no more data - state = nextstate; - if (state == State.ROW_READY) { - preProcessRow(); - return true; - } - } catch (final RuntimeException e) { - close(); - throw e; - } - return false; - } - - /** - * Called automatically in all modes when a full row has been inflated. - */ - protected void preProcessRow() { - - } - - /** - * Callback, must be implemented in callbackMode - *

- * This should use {@link #getRowFilled()} and {@link #getInflatedRow()} to - * access the row. - *

- * Must return byes of next row, for next callback. - */ - protected int processRowCallback() { - throw new PngjInputException("not implemented"); - } - - /** - * Callback, to be implemented in callbackMode - *

- * This will be called once to notify state done - */ - protected void processDoneCallback() {} - - /** - * Inflated buffer. - * - * The effective length is given by {@link #getRowFilled()} - */ - public byte[] getInflatedRow() { - return row; - } - - /** - * Should be called after the previous row was processed - *

- * Pass 0 or negative to signal that we are done (not expecting more bytes) - *

- * This resets {@link #rowfilled} - *

- * The - */ - public void prepareForNextRow(final int len) { - rowfilled = 0; - rown++; - if (len < 1) { - rowlen = 0; - done(); - } else if (inf.finished()) { - rowlen = 0; - done(); - } else { - state = State.WAITING_FOR_INPUT; - rowlen = len; - if (!callbackMode) - inflateData(); - } - } - - /** - * In this state, the object is waiting for more input to deflate. - *

- * Only in this state it's legal to feed this - */ - public boolean isWaitingForMoreInput() { - return state == State.WAITING_FOR_INPUT; - } - - /** - * In this state, the object is waiting the caller to retrieve inflated data - *

- * Effective length: see {@link #getRowFilled()} - */ - public boolean isRowReady() { - return state == State.ROW_READY; - } - - /** - * In this state, all relevant data has been uncompressed and retrieved - * (exceptionally, the reading has ended - * prematurely). - *

- * We can still feed this object, but the bytes will be swallowed/ignored. - */ - public boolean isDone() { - return state.isDone(); - } - - public boolean isTerminated() { - return state.isTerminated(); - } - - /** - * This will be called by the owner to report us the next chunk to come. We - * can make our own internal changes and - * checks. This returns true if we acknowledge the next chunk as part of - * this set - */ - public boolean ackNextChunkId(final String id) { - if (state.isTerminated()) - return false; - else if (id.equals(chunkid)) - return true; - else if (!allowOtherChunksInBetween(id)) { - if (state.isDone()) { - if (!isTerminated()) - terminate(); - return false; - } else - throw new PngjInputException("Unexpected chunk " + id + " while " + chunkid + " set is not done"); - } else - return true; - } - - protected void terminate() { - close(); - } - - /** - * This should be called when discarding this object, or for aborting. - * Secure, idempotent Don't use this just to - * notify this object that it has no more work to do, see {@link #done()} - */ - public void close() { - try { - if (!state.isTerminated()) - state = State.TERMINATED; - if (infOwn && inf != null) { - inf.end();// we end the Inflater only if we created it - inf = null; - } - } catch (final Exception e) {} - } - - /** - * Forces the DONE state, this object won't uncompress more data. It's still - * not terminated, it will accept more IDAT - * chunks, but will ignore them. - */ - public void done() { - if (!isDone()) - state = State.WORK_DONE; - } - - /** - * Target size of the current row, including filter byte.
- * should coincide (or be less than) with row.length - */ - public int getRowLen() { - return rowlen; - } - - /** This the amount of valid bytes in the buffer */ - public int getRowFilled() { - return rowfilled; - } - - /** - * Get current (last) row number. - *

- * This corresponds to the raw numeration of rows as seen by the deflater. - * Not the same as the real image row, if - * interlaced. - * - */ - public int getRown() { - return rown; - } - - /** - * Some IDAT-like set can allow other chunks in between (APGN?). - *

- * Normally false. - * - * @param id - * Id of the other chunk that appeared in middel of this set. - * @return true if allowed - */ - public boolean allowOtherChunksInBetween(final String id) { - return false; - } - - /** - * Callback mode = async processing - */ - public boolean isCallbackMode() { - return callbackMode; - } - - public void setCallbackMode(final boolean callbackMode) { - this.callbackMode = callbackMode; - } - - /** total number of bytes that have been fed to this object */ - public long getBytesIn() { - return nBytesIn; - } - - /** total number of bytes that have been uncompressed */ - public long getBytesOut() { - return nBytesOut; - } - - @Override - public String toString() { - final StringBuilder sb = new StringBuilder("idatSet : " + curChunk.getChunkRaw().id + " state=" + state + " rows=" + rown + " bytes=" + nBytesIn + "/" + nBytesOut); - return sb.toString(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/Deinterlacer.java b/teavm/src/main/java/ar/com/hjg/pngj/Deinterlacer.java deleted file mode 100644 index b9c895b..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/Deinterlacer.java +++ /dev/null @@ -1,197 +0,0 @@ -package ar.com.hjg.pngj; - -public class Deinterlacer { - final ImageInfo imi; - private int pass; // 1-7 - private int rows, cols; - int dY, dX, oY, oX; // current step and offset (in pixels) - int oXsamples, dXsamples; // step in samples - - // current row in the virtual subsampled image; this increments (by 1) from 0 to rows/dy 7 times - private int currRowSubimg; - // in the real image, this will cycle from 0 to im.rows in different steps, 7 times - private int currRowReal; - private int currRowSeq; // not counting empty rows - - int totalRows; - private boolean ended = false; - - public Deinterlacer(final ImageInfo iminfo) { - imi = iminfo; - pass = 0; - currRowSubimg = -1; - currRowReal = -1; - currRowSeq = 0; - ended = false; - totalRows = 0; // lazy compute - setPass(1); - setRow(0); - } - - /** this refers to the row currRowSubimg */ - private void setRow(final int n) { // This should be called only intercally, in sequential order - currRowSubimg = n; - currRowReal = n * dY + oY; - if (currRowReal < 0 || currRowReal >= imi.rows) - throw new PngjExceptionInternal("bad row - this should not happen"); - } - - /** Skips passes with no rows. Return false is no more rows */ - boolean nextRow() { - currRowSeq++; - if (rows == 0 || currRowSubimg >= rows - 1) { // next pass - if (pass == 7) { - ended = true; - return false; - } - setPass(pass + 1); - if (rows == 0) { - currRowSeq--; - return nextRow(); - } - setRow(0); - } else - setRow(currRowSubimg + 1); - return true; - } - - boolean isEnded() { - return ended; - } - - void setPass(final int p) { - if (pass == p) - return; - pass = p; - final byte[] pp = Deinterlacer.paramsForPass(p);// dx,dy,ox,oy - dX = pp[0]; - dY = pp[1]; - oX = pp[2]; - oY = pp[3]; - rows = imi.rows > oY ? (imi.rows + dY - 1 - oY) / dY : 0; - cols = imi.cols > oX ? (imi.cols + dX - 1 - oX) / dX : 0; - if (cols == 0) - rows = 0; // well, really... - dXsamples = dX * imi.channels; - oXsamples = oX * imi.channels; - } - - static byte[] paramsForPass(final int p) {// dx,dy,ox,oy - switch (p) { - case 1: - return new byte[] { 8, 8, 0, 0 }; - case 2: - return new byte[] { 8, 8, 4, 0 }; - case 3: - return new byte[] { 4, 8, 0, 4 }; - case 4: - return new byte[] { 4, 4, 2, 0 }; - case 5: - return new byte[] { 2, 4, 0, 2 }; - case 6: - return new byte[] { 2, 2, 1, 0 }; - case 7: - return new byte[] { 1, 2, 0, 1 }; - default: - throw new PngjExceptionInternal("bad interlace pass" + p); - } - } - - /** - * current row number inside the "sub image" - */ - int getCurrRowSubimg() { - return currRowSubimg; - } - - /** - * current row number inside the "real image" - */ - int getCurrRowReal() { - return currRowReal; - } - - /** - * current pass number (1-7) - */ - int getPass() { - return pass; - } - - /** - * How many rows has the current pass? - **/ - int getRows() { - return rows; - } - - /** - * How many columns (pixels) are there in the current row - */ - int getCols() { - return cols; - } - - public int getPixelsToRead() { - return getCols(); - } - - public int getBytesToRead() { // not including filter byte - return (imi.bitspPixel * getPixelsToRead() + 7) / 8; - } - - public int getdY() { - return dY; - } - - /* - * in pixels - */ - public int getdX() { - return dX; - } - - public int getoY() { - return oY; - } - - /* - * in pixels - */ - public int getoX() { - return oX; - } - - public int getTotalRows() { - if (totalRows == 0) - for (int p = 1; p <= 7; p++) { - final byte[] pp = Deinterlacer.paramsForPass(p); // dx dy ox oy - final int rows = imi.rows > pp[3] ? (imi.rows + pp[1] - 1 - pp[3]) / pp[1] : 0; - final int cols = imi.cols > pp[2] ? (imi.cols + pp[0] - 1 - pp[2]) / pp[0] : 0; - if (rows > 0 && cols > 0) - totalRows += rows; - } - return totalRows; - } - - /** - * total unfiltered bytes in the image, including the filter byte - */ - public long getTotalRawBytes() { // including the filter byte - long bytes = 0; - for (int p = 1; p <= 7; p++) { - final byte[] pp = Deinterlacer.paramsForPass(p); // dx dy ox oy - final int rows = imi.rows > pp[3] ? (imi.rows + pp[1] - 1 - pp[3]) / pp[1] : 0; - final int cols = imi.cols > pp[2] ? (imi.cols + pp[0] - 1 - pp[2]) / pp[0] : 0; - final int bytesr = (imi.bitspPixel * cols + 7) / 8; // without filter byte - if (rows > 0 && cols > 0) - bytes += rows * (1 + (long) bytesr); - } - return bytes; - } - - public int getCurrRowSeq() { - return currRowSeq; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/FilterType.java b/teavm/src/main/java/ar/com/hjg/pngj/FilterType.java deleted file mode 100644 index b71bc6e..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/FilterType.java +++ /dev/null @@ -1,125 +0,0 @@ -package ar.com.hjg.pngj; - -import java.util.HashMap; - -/** - * Internal PNG predictor filter type - * - * Negative values are pseudo types, actually global strategies for writing, - * that (can) result on different real filters - * for different rows - */ -public enum FilterType { - /** - * No filter. - */ - FILTER_NONE(0), - /** - * SUB filter (uses same row) - */ - FILTER_SUB(1), - /** - * UP filter (uses previous row) - */ - FILTER_UP(2), - /** - * AVERAGE filter - */ - FILTER_AVERAGE(3), - /** - * PAETH predictor - */ - FILTER_PAETH(4), - /** - * Default strategy: select one of the standard filters depending on global - * image parameters - */ - FILTER_DEFAULT(-1), - /** - * @deprecated use #FILTER_ADAPTIVE_FAST - */ - FILTER_AGGRESSIVE(-2), - /** - * @deprecated use #FILTER_ADAPTIVE_MEDIUM or #FILTER_ADAPTIVE_FULL - */ - FILTER_VERYAGGRESSIVE(-4), - /** - * Adaptative strategy, sampling each row, or almost - */ - FILTER_ADAPTIVE_FULL(-4), - /** - * Adaptive strategy, skippping some rows - */ - FILTER_ADAPTIVE_MEDIUM(-3), // samples about 1/4 row - /** - * Adaptative strategy, skipping many rows - more speed - */ - FILTER_ADAPTIVE_FAST(-2), // samples each 8 or 16 rows - /** - * Experimental - */ - FILTER_SUPER_ADAPTIVE(-10), // - /** - * Preserves the filter passed in original row. - */ - FILTER_PRESERVE(-40), - /** - * Uses all fiters, one for lines, cyciclally. Only for tests. - */ - FILTER_CYCLIC(-50), - /** - * Not specified, placeholder for unknown or NA filters. - */ - FILTER_UNKNOWN(-100); - - public final int val; - - private FilterType(final int val) { - this.val = val; - } - - private static HashMap byVal; - - static { - FilterType.byVal = new HashMap<>(); - for (final FilterType ft : FilterType.values()) - FilterType.byVal.put(ft.val, ft); - } - - public static FilterType getByVal(final int i) { - return FilterType.byVal.get(i); - } - - /** only considers standard */ - public static boolean isValidStandard(final int i) { - return i >= 0 && i <= 4; - } - - public static boolean isValidStandard(final FilterType fy) { - return fy != null && FilterType.isValidStandard(fy.val); - } - - public static boolean isAdaptive(final FilterType fy) { - return fy.val <= -2 && fy.val >= -4; - } - - /** - * Returns all "standard" filters - */ - public static FilterType[] getAllStandard() { - return new FilterType[] { FILTER_NONE, FILTER_SUB, FILTER_UP, FILTER_AVERAGE, FILTER_PAETH }; - } - - public static FilterType[] getAllStandardNoneLast() { - return new FilterType[] { FILTER_SUB, FILTER_UP, FILTER_AVERAGE, FILTER_PAETH, FILTER_NONE }; - } - - public static FilterType[] getAllStandardExceptNone() { - return new FilterType[] { FILTER_SUB, FILTER_UP, FILTER_AVERAGE, FILTER_PAETH }; - } - - static FilterType[] getAllStandardForFirstRow() { - return new FilterType[] { FILTER_SUB, FILTER_NONE }; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IBytesConsumer.java b/teavm/src/main/java/ar/com/hjg/pngj/IBytesConsumer.java deleted file mode 100644 index bba345f..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IBytesConsumer.java +++ /dev/null @@ -1,16 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Bytes consumer. Objects implementing this interface can act as bytes - * consumers, that are "fed" with bytes. - */ -public interface IBytesConsumer { - /** - * Eats some bytes, at most len. - *

- * Returns bytes actually consumed. A negative return value signals that the - * consumer is done, it refuses to eat more - * bytes. This should only return 0 if len is 0 - */ - int consume(byte[] buf, int offset, int len); -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IChunkFactory.java b/teavm/src/main/java/ar/com/hjg/pngj/IChunkFactory.java deleted file mode 100644 index 4e0f814..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IChunkFactory.java +++ /dev/null @@ -1,23 +0,0 @@ -package ar.com.hjg.pngj; - -import ar.com.hjg.pngj.chunks.ChunkRaw; -import ar.com.hjg.pngj.chunks.PngChunk; - -/** - * Factory to create a {@link PngChunk} from a {@link ChunkRaw}. - *

- * Used by {@link PngReader} - */ -public interface IChunkFactory { - - /** - * @param chunkRaw - * Chunk in raw form. Data can be null if it was skipped or - * processed directly (eg IDAT) - * @param imgInfo - * Not normally necessary, but some chunks want this info - * @return should never return null. - */ - PngChunk createChunk(ChunkRaw chunkRaw, ImageInfo imgInfo); - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IDatChunkWriter.java b/teavm/src/main/java/ar/com/hjg/pngj/IDatChunkWriter.java deleted file mode 100644 index f3c7d0c..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IDatChunkWriter.java +++ /dev/null @@ -1,132 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.OutputStream; - -import ar.com.hjg.pngj.chunks.ChunkHelper; -import ar.com.hjg.pngj.chunks.ChunkRaw; - -/** - * Outputs a sequence of IDAT-like chunk, that is filled progressively until the - * max chunk length is reached (or until - * flush()) - */ -public class IDatChunkWriter { - - private static final int MAX_LEN_DEFAULT = 32768; // 32K rather arbitrary - data only - - private final OutputStream outputStream; - private final int maxChunkLen; - private byte[] buf; - - private int offset = 0; - private int availLen; - private long totalBytesWriten = 0; // including header+crc - private int chunksWriten = 0; - - public IDatChunkWriter(final OutputStream outputStream) { - this(outputStream, 0); - } - - public IDatChunkWriter(final OutputStream outputStream, final int maxChunkLength) { - this.outputStream = outputStream; - maxChunkLen = maxChunkLength > 0 ? maxChunkLength : IDatChunkWriter.MAX_LEN_DEFAULT; - buf = new byte[maxChunkLen]; - availLen = maxChunkLen - offset; - postReset(); - } - - public IDatChunkWriter(final OutputStream outputStream, final byte[] b) { - this.outputStream = outputStream; - buf = b != null ? b : new byte[IDatChunkWriter.MAX_LEN_DEFAULT]; - maxChunkLen = b.length; - availLen = maxChunkLen - offset; - postReset(); - } - - protected byte[] getChunkId() { - return ChunkHelper.b_IDAT; - } - - /** - * Writes a chhunk if there is more than minLenToWrite. - * - * This is normally called internally, but can be called explicitly to force - * flush. - */ - public final void flush() { - if (offset > 0 && offset >= minLenToWrite()) { - final ChunkRaw c = new ChunkRaw(offset, getChunkId(), false); - c.data = buf; - c.writeChunk(outputStream); - totalBytesWriten += c.len + 12; - chunksWriten++; - offset = 0; - availLen = maxChunkLen; - postReset(); - } - } - - public int getOffset() { - return offset; - } - - public int getAvailLen() { - return availLen; - } - - /** triggers an flush+reset if appropiate */ - public void incrementOffset(final int n) { - offset += n; - availLen -= n; - if (availLen < 0) - throw new PngjOutputException("Anomalous situation"); - if (availLen == 0) - flush(); - } - - /** - * this should rarely be used, the normal way (to avoid double copying) is - * to get the buffer and write directly to it - */ - public void write(final byte[] b, int o, int len) { - while (len > 0) { - final int n = len <= availLen ? len : availLen; - System.arraycopy(b, o, buf, offset, n); - incrementOffset(n); - len -= n; - o += n; - } - } - - /** this will be called after reset */ - protected void postReset() { - // fdat could override this (and minLenToWrite) to add a prefix - } - - protected int minLenToWrite() { - return 1; - } - - public void close() { - flush(); - offset = 0; - buf = null; - } - - /** - * You can write directly to this buffer, using {@link #getOffset()} and - * {@link #getAvailLen()}. You should call - * {@link #incrementOffset(int)} inmediately after. - */ - public byte[] getBuf() { - return buf; - } - - public long getTotalBytesWriten() { - return totalBytesWriten; - } - - public int getChunksWriten() { - return chunksWriten; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IImageLine.java b/teavm/src/main/java/ar/com/hjg/pngj/IImageLine.java deleted file mode 100644 index c127519..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IImageLine.java +++ /dev/null @@ -1,50 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * General format-translated image line. - *

- * The methods from this interface provides translation from/to PNG raw - * unfiltered pixel data, for each image line. This - * doesn't make any assumptions of underlying storage. - *

- * The user of this library will not normally use this methods, but instead will - * cast to a more concrete implementation, - * as {@link ImageLineInt} or {@link ImageLineByte} with its methods for - * accessing the pixel values. - */ -public interface IImageLine { - - /** - * Extract pixels from a raw unlfilterd PNG row. Len is the total amount of - * bytes in the array, including the first - * byte (filter type) - * - * Arguments offset and step (0 and 1 for non interlaced) are in PIXELS. - * It's guaranteed that when step==1 then - * offset=0 - * - * Notice that when step!=1 the data is partial, this method will be called - * several times - * - * Warning: the data in array 'raw' starts at position 0 and has 'len' - * consecutive bytes. 'offset' and 'step' refer to - * the pixels in destination - */ - void readFromPngRaw(byte[] raw, int len, int offset, int step); - - /** - * This is called when the read for the line has been completed (eg for - * interlaced). It's called exactly once for each - * line. This is provided in case the class needs to to some postprocessing. - */ - void endReadFromPngRaw(); - - /** - * Writes the line to a PNG raw byte array, in the unfiltered PNG format - * Notice that the first byte is the filter - * type, you should write it only if you know it. - * - */ - void writeToPngRaw(byte[] raw); - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IImageLineArray.java b/teavm/src/main/java/ar/com/hjg/pngj/IImageLineArray.java deleted file mode 100644 index 3b2fdfa..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IImageLineArray.java +++ /dev/null @@ -1,26 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * This interface is just for the sake of unifying some methods of - * {@link ImageLineHelper} that can use both - * {@link ImageLineInt} or {@link ImageLineByte}. It's not very useful outside - * that, and the user should not rely much - * on this. - */ -public interface IImageLineArray { - ImageInfo getImageInfo(); - - FilterType getFilterType(); - - /** - * length of array (should correspond to samples) - */ - int getSize(); - - /** - * Get i-th element of array (for 0 to size-1). The meaning of this is type - * dependent. For ImageLineInt and - * ImageLineByte is the sample value. - */ - int getElem(int i); -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IImageLineFactory.java b/teavm/src/main/java/ar/com/hjg/pngj/IImageLineFactory.java deleted file mode 100644 index aaf4202..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IImageLineFactory.java +++ /dev/null @@ -1,8 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Image Line factory. - */ -public interface IImageLineFactory { - T createImageLine(ImageInfo iminfo); -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IImageLineSet.java b/teavm/src/main/java/ar/com/hjg/pngj/IImageLineSet.java deleted file mode 100644 index 6c4b659..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IImageLineSet.java +++ /dev/null @@ -1,64 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Set of {@link IImageLine} elements. - *

- * This is actually a "virtual" set, it can be implemented in several ways; for - * example - *

- */ -public interface IImageLineSet { - - /** - * Asks for imageline corresponding to row n in the original image - * (zero based). This can trigger side - * effects in this object (eg, advance a cursor, set current row number...) - * In some scenarios, this should be consider - * as alias to (pseudocode) positionAtLine(n); getCurrentLine(); - *

- * Throws exception if not available. The caller is supposed to know what - * he/she is doing - **/ - IImageLine getImageLine(int n); - - /** - * Like {@link #getImageLine(int)} but uses the raw numbering inside the - * LineSet This makes little sense for a cursor - * - * @param n - * Should normally go from 0 to {@link #size()} - * @return - */ - IImageLine getImageLineRawNum(int n); - - /** - * Returns true if the set contain row n (in the original - * image,zero based) currently allocated. - *

- * If it's a single-cursor, this should return true only if it's positioned - * there. (notice that hasImageLine(n) can - * return false, but getImageLine(n) can be ok) - * - **/ - boolean hasImageLine(int n); - - /** - * Internal size of allocated rows This is informational, it should rarely - * be important for the caller. - **/ - int size(); - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IImageLineSetFactory.java b/teavm/src/main/java/ar/com/hjg/pngj/IImageLineSetFactory.java deleted file mode 100644 index 821dd6f..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IImageLineSetFactory.java +++ /dev/null @@ -1,32 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Factory of {@link IImageLineSet}, used by {@link PngReader}. - *

- * - * @param - * Generic type of IImageLine - */ -public interface IImageLineSetFactory { - /** - * Creates a new {@link IImageLineSet} - * - * If singleCursor=true, the caller will read and write one row fully at a - * time, in order (it'll never try to read out - * of order lines), so the implementation can opt for allocate only one - * line. - * - * @param imgInfo - * Image info - * @param singleCursor - * : will read/write one row at a time - * @param nlines - * : how many lines we plan to read - * @param noffset - * : how many lines we want to skip from the original image - * (normally 0) - * @param step - * : row step (normally 1) - */ - IImageLineSet create(ImageInfo imgInfo, boolean singleCursor, int nlines, int noffset, int step); -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IPngWriterFactory.java b/teavm/src/main/java/ar/com/hjg/pngj/IPngWriterFactory.java deleted file mode 100644 index c8c464e..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IPngWriterFactory.java +++ /dev/null @@ -1,7 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.OutputStream; - -public interface IPngWriterFactory { - PngWriter createPngWriter(OutputStream outputStream, ImageInfo imgInfo); -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/IdatSet.java b/teavm/src/main/java/ar/com/hjg/pngj/IdatSet.java deleted file mode 100644 index cd0c49d..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/IdatSet.java +++ /dev/null @@ -1,246 +0,0 @@ -package ar.com.hjg.pngj; - -import java.util.Arrays; -import java.util.zip.Checksum; -import java.util.zip.Inflater; - -/** - * This object process the concatenation of IDAT chunks. - *

- * It extends {@link DeflatedChunksSet}, adding the intelligence to unfilter - * rows, and to understand row lenghts in - * terms of ImageInfo and (eventually) Deinterlacer - */ -public class IdatSet extends DeflatedChunksSet { - - protected byte rowUnfiltered[]; - protected byte rowUnfilteredPrev[]; - protected final ImageInfo imgInfo; // in the case of APNG this is the frame image - protected final Deinterlacer deinterlacer; - - final RowInfo rowinfo; // info for the last processed row, for debug - - protected int filterUseStat[] = new int[5]; // for stats - - /** - * @param id - * Chunk id (first chunk), should be shared by all concatenated - * chunks - * @param iminfo - * Image info - * @param deinterlacer - * Not null if interlaced - */ - public IdatSet(final String id, final ImageInfo iminfo, final Deinterlacer deinterlacer) { - this(id, iminfo, deinterlacer, null, null); - } - - /** - * Special constructor with preallocated buffer. - *

- *

- * Same as {@link #IdatSet(String, ImageInfo, Deinterlacer)}, but you can - * pass a Inflater (will be reset internally), - * and a buffer (will be used only if size is enough) - */ - public IdatSet(final String id, final ImageInfo iminfo, final Deinterlacer deinterlacer, final Inflater inf, final byte[] buffer) { - super(id, deinterlacer != null ? deinterlacer.getBytesToRead() + 1 : iminfo.bytesPerRow + 1, iminfo.bytesPerRow + 1, inf, buffer); - imgInfo = iminfo; - this.deinterlacer = deinterlacer; - rowinfo = new RowInfo(iminfo, deinterlacer); - } - - /** - * Applies PNG un-filter to inflated raw line. Result in - * {@link #getUnfilteredRow()} {@link #getRowLen()} - */ - public void unfilterRow() { - unfilterRow(rowinfo.bytesRow); - } - - // nbytes: NOT including the filter byte. leaves result in rowUnfiltered - protected void unfilterRow(final int nbytes) { - if (rowUnfiltered == null || rowUnfiltered.length < row.length) { - rowUnfiltered = new byte[row.length]; - rowUnfilteredPrev = new byte[row.length]; - } - if (rowinfo.rowNsubImg == 0) - Arrays.fill(rowUnfiltered, (byte) 0); // see swap that follows - // swap - final byte[] tmp = rowUnfiltered; - rowUnfiltered = rowUnfilteredPrev; - rowUnfilteredPrev = tmp; - - final int ftn = row[0]; - if (!FilterType.isValidStandard(ftn)) - throw new PngjInputException("Filter type " + ftn + " invalid"); - final FilterType ft = FilterType.getByVal(ftn); - filterUseStat[ftn]++; - rowUnfiltered[0] = row[0]; // we copy the filter type, can be useful - switch (ft) { - case FILTER_NONE: - unfilterRowNone(nbytes); - break; - case FILTER_SUB: - unfilterRowSub(nbytes); - break; - case FILTER_UP: - unfilterRowUp(nbytes); - break; - case FILTER_AVERAGE: - unfilterRowAverage(nbytes); - break; - case FILTER_PAETH: - unfilterRowPaeth(nbytes); - break; - default: - throw new PngjInputException("Filter type " + ftn + " not implemented"); - } - } - - private void unfilterRowAverage(final int nbytes) { - int i, j, x; - for (j = 1 - imgInfo.bytesPixel, i = 1; i <= nbytes; i++, j++) { - x = j > 0 ? rowUnfiltered[j] & 0xff : 0; - rowUnfiltered[i] = (byte) (row[i] + (x + (rowUnfilteredPrev[i] & 0xFF)) / 2); - } - } - - private void unfilterRowNone(final int nbytes) { - for (int i = 1; i <= nbytes; i++) - rowUnfiltered[i] = row[i]; - } - - private void unfilterRowPaeth(final int nbytes) { - int i, j, x, y; - for (j = 1 - imgInfo.bytesPixel, i = 1; i <= nbytes; i++, j++) { - x = j > 0 ? rowUnfiltered[j] & 0xFF : 0; - y = j > 0 ? rowUnfilteredPrev[j] & 0xFF : 0; - rowUnfiltered[i] = (byte) (row[i] + PngHelperInternal.filterPaethPredictor(x, rowUnfilteredPrev[i] & 0xFF, y)); - } - } - - private void unfilterRowSub(final int nbytes) { - int i, j; - for (i = 1; i <= imgInfo.bytesPixel; i++) - rowUnfiltered[i] = row[i]; - for (j = 1, i = imgInfo.bytesPixel + 1; i <= nbytes; i++, j++) - rowUnfiltered[i] = (byte) (row[i] + rowUnfiltered[j]); - } - - private void unfilterRowUp(final int nbytes) { - for (int i = 1; i <= nbytes; i++) - rowUnfiltered[i] = (byte) (row[i] + rowUnfilteredPrev[i]); - } - - /** - * does the unfiltering of the inflated row, and updates row info - */ - @Override - protected void preProcessRow() { - super.preProcessRow(); - rowinfo.update(getRown()); - unfilterRow(); - rowinfo.updateBuf(rowUnfiltered, rowinfo.bytesRow + 1); - } - - /** - * Method for async/callback mode . - *

- * In callback mode will be called as soon as each row is retrieved - * (inflated and unfiltered), after - * {@link #preProcessRow()} - *

- * This is a dummy implementation (this normally should be overriden) that - * does nothing more than compute the length - * of next row. - *

- * The return value is essential - *

- * - * @return Length of next row, in bytes (including filter byte), - * non-positive if done - */ - @Override - protected int processRowCallback() { - final int bytesNextRow = advanceToNextRow(); - return bytesNextRow; - } - - @Override - protected void processDoneCallback() { - super.processDoneCallback(); - } - - /** - * Signals that we are done with the previous row, begin reading the next - * one. - *

- * In polled mode, calls setNextRowLen() - *

- * Warning: after calling this, the unfilterRow is invalid! - * - * @return Returns nextRowLen - */ - public int advanceToNextRow() { - // PngHelperInternal.LOGGER.info("advanceToNextRow"); - int bytesNextRow; - if (deinterlacer == null) - bytesNextRow = getRown() >= imgInfo.rows - 1 ? 0 : imgInfo.bytesPerRow + 1; - else { - final boolean more = deinterlacer.nextRow(); - bytesNextRow = more ? deinterlacer.getBytesToRead() + 1 : 0; - } - if (!isCallbackMode()) - prepareForNextRow(bytesNextRow); - return bytesNextRow; - } - - @Override - public boolean isRowReady() { - return !isWaitingForMoreInput(); - - } - - /** - * Unfiltered row. - *

- * This should be called only if {@link #isRowReady()} returns true. - *

- * To get real length, use {@link #getRowLen()} - *

- * - * @return Unfiltered row, includes filter byte - */ - public byte[] getUnfilteredRow() { - return rowUnfiltered; - } - - public Deinterlacer getDeinterlacer() { - return deinterlacer; - } - - void updateCrcs(final Checksum... idatCrcs) { - for (final Checksum idatCrca : idatCrcs) - if (idatCrca != null)// just for testing - idatCrca.update(getUnfilteredRow(), 1, getRowFilled() - 1); - } - - @Override - public void close() { - super.close(); - rowUnfiltered = null;// not really necessary... - rowUnfilteredPrev = null; - } - - /** - * Only for debug/stats - * - * @return Array of 5 integers (sum equal numbers of rows) counting each - * filter use - */ - public int[] getFilterUseStat() { - return filterUseStat; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ImageInfo.java b/teavm/src/main/java/ar/com/hjg/pngj/ImageInfo.java deleted file mode 100644 index 850ac2c..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ImageInfo.java +++ /dev/null @@ -1,265 +0,0 @@ -package ar.com.hjg.pngj; - -import java.util.zip.Checksum; - -/** - * Simple immutable wrapper for basic image info. - *

- * Some parameters are redundant, but the constructor receives an 'orthogonal' - * subset. - *

- * ref: http://www.w3.org/TR/PNG/#11IHDR - */ -public class ImageInfo { - - /** - * Absolute allowed maximum value for rows and cols (2^24 ~16 million). - * (bytesPerRow must fit in a 32bit integer, - * though total amount of pixels not necessarily). - */ - public static final int MAX_COLS_ROW = 16777216; - - /** - * Cols= Image width, in pixels. - */ - public final int cols; - - /** - * Rows= Image height, in pixels - */ - public final int rows; - - /** - * Bits per sample (per channel) in the buffer (1-2-4-8-16). This is 8-16 - * for RGB/ARGB images, 1-2-4-8 for grayscale. - * For indexed images, number of bits per palette index (1-2-4-8) - */ - public final int bitDepth; - - /** - * Number of channels, as used internally: 3 for RGB, 4 for RGBA, 2 for GA - * (gray with alpha), 1 for grayscale or - * indexed. - */ - public final int channels; - - /** - * Flag: true if has alpha channel (RGBA/GA) - */ - public final boolean alpha; - - /** - * Flag: true if is grayscale (G/GA) - */ - public final boolean greyscale; - - /** - * Flag: true if image is indexed, i.e., it has a palette - */ - public final boolean indexed; - - /** - * Flag: true if image internally uses less than one byte per sample (bit - * depth 1-2-4) - */ - public final boolean packed; - - /** - * Bits used for each pixel in the buffer: channel * bitDepth - */ - public final int bitspPixel; - - /** - * rounded up value: this is only used internally for filter - */ - public final int bytesPixel; - - /** - * ceil(bitspp*cols/8) - does not include filter - */ - public final int bytesPerRow; - - /** - * Equals cols * channels - */ - public final int samplesPerRow; - - /** - * Amount of "packed samples" : when several samples are stored in a single - * byte (bitdepth 1,2 4) they are counted as - * one "packed sample". This is less that samplesPerRow only when bitdepth - * is 1-2-4 (flag packed = true) - *

- * This equals the number of elements in the scanline array if working with - * packedMode=true - *

- * For internal use, client code should rarely access this. - */ - public final int samplesPerRowPacked; - - private long totalPixels = -1; // lazy getter - - private long totalRawBytes = -1; // lazy getter - - /** - * Short constructor: assumes truecolor (RGB/RGBA) - */ - public ImageInfo(final int cols, final int rows, final int bitdepth, final boolean alpha) { - this(cols, rows, bitdepth, alpha, false, false); - } - - /** - * Full constructor - * - * @param cols - * Width in pixels - * @param rows - * Height in pixels - * @param bitdepth - * Bits per sample, in the buffer : 8-16 for RGB true color and - * greyscale - * @param alpha - * Flag: has an alpha channel (RGBA or GA) - * @param grayscale - * Flag: is gray scale (any bitdepth, with or without alpha) - * @param indexed - * Flag: has palette - */ - public ImageInfo(final int cols, final int rows, final int bitdepth, final boolean alpha, final boolean grayscale, final boolean indexed) { - this.cols = cols; - this.rows = rows; - this.alpha = alpha; - this.indexed = indexed; - greyscale = grayscale; - if (greyscale && indexed) - throw new PngjException("palette and greyscale are mutually exclusive"); - channels = grayscale || indexed ? alpha ? 2 : 1 : alpha ? 4 : 3; - // http://www.w3.org/TR/PNG/#11IHDR - bitDepth = bitdepth; - packed = bitdepth < 8; - bitspPixel = channels * bitDepth; - bytesPixel = (bitspPixel + 7) / 8; - bytesPerRow = (bitspPixel * cols + 7) / 8; - samplesPerRow = channels * this.cols; - samplesPerRowPacked = packed ? bytesPerRow : samplesPerRow; - // several checks - switch (bitDepth) { - case 1: - case 2: - case 4: - if (!(this.indexed || greyscale)) - throw new PngjException("only indexed or grayscale can have bitdepth=" + bitDepth); - break; - case 8: - break; - case 16: - if (this.indexed) - throw new PngjException("indexed can't have bitdepth=" + bitDepth); - break; - default: - throw new PngjException("invalid bitdepth=" + bitDepth); - } - if (cols < 1 || cols > ImageInfo.MAX_COLS_ROW) - throw new PngjException("invalid cols=" + cols + " ???"); - if (rows < 1 || rows > ImageInfo.MAX_COLS_ROW) - throw new PngjException("invalid rows=" + rows + " ???"); - if (samplesPerRow < 1) - throw new PngjException("invalid image parameters (overflow?)"); - } - - /** - * returns a copy with different size - * - * @param cols - * if non-positive, the original is used - * @param rows - * if non-positive, the original is used - * @return a new copy with the specified size and same properties - */ - public ImageInfo withSize(final int cols, final int rows) { - return new ImageInfo(cols > 0 ? cols : this.cols, rows > 0 ? rows : this.rows, bitDepth, alpha, greyscale, indexed); - } - - public long getTotalPixels() { - if (totalPixels < 0) - totalPixels = cols * (long) rows; - return totalPixels; - } - - /** - * Total uncompressed bytes in IDAT, including filter byte. This is not - * valid for interlaced. - */ - public long getTotalRawBytes() { - if (totalRawBytes < 0) - totalRawBytes = (bytesPerRow + 1) * (long) rows; - return totalRawBytes; - } - - @Override - public String toString() { - return "ImageInfo [cols=" + cols + ", rows=" + rows + ", bitDepth=" + bitDepth + ", channels=" + channels + ", alpha=" + alpha + ", greyscale=" + greyscale + ", indexed=" + indexed + "]"; - } - - /** - * Brief info: COLSxROWS[dBITDEPTH][a][p][g] ( the default dBITDEPTH='d8' is - * ommited) - **/ - public String toStringBrief() { - return String.valueOf(cols) + "x" + rows + (bitDepth != 8 ? "d" + bitDepth : "") + (alpha ? "a" : "") + (indexed ? "p" : "") + (greyscale ? "g" : ""); - } - - public String toStringDetail() { - return "ImageInfo [cols=" + cols + ", rows=" + rows + ", bitDepth=" + bitDepth + ", channels=" + channels + ", bitspPixel=" + bitspPixel + ", bytesPixel=" + bytesPixel + ", bytesPerRow=" + bytesPerRow + ", samplesPerRow=" + samplesPerRow + ", samplesPerRowP=" + samplesPerRowPacked + ", alpha=" + alpha + ", greyscale=" + greyscale + ", indexed=" + indexed + ", packed=" + packed + "]"; - } - - void updateCrc(final Checksum crc) { - crc.update((byte) rows); - crc.update((byte) (rows >> 8)); - crc.update((byte) (rows >> 16)); - crc.update((byte) cols); - crc.update((byte) (cols >> 8)); - crc.update((byte) (cols >> 16)); - crc.update((byte) bitDepth); - crc.update((byte) (indexed ? 1 : 2)); - crc.update((byte) (greyscale ? 3 : 4)); - crc.update((byte) (alpha ? 3 : 4)); - } - - @Override - public int hashCode() { - final int prime = 31; - int result = 1; - result = prime * result + (alpha ? 1231 : 1237); - result = prime * result + bitDepth; - result = prime * result + cols; - result = prime * result + (greyscale ? 1231 : 1237); - result = prime * result + (indexed ? 1231 : 1237); - result = prime * result + rows; - return result; - } - - @Override - public boolean equals(final Object obj) { - if (this == obj) - return true; - if (obj == null) - return false; - if (getClass() != obj.getClass()) - return false; - final ImageInfo other = (ImageInfo) obj; - if (alpha != other.alpha) - return false; - if (bitDepth != other.bitDepth) - return false; - if (cols != other.cols) - return false; - if (greyscale != other.greyscale) - return false; - if (indexed != other.indexed) - return false; - if (rows != other.rows) - return false; - return true; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ImageLineByte.java b/teavm/src/main/java/ar/com/hjg/pngj/ImageLineByte.java deleted file mode 100644 index f883e9d..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ImageLineByte.java +++ /dev/null @@ -1,191 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Lightweight wrapper for an image scanline, used for read and write. - *

- * This object can be (usually it is) reused while iterating over the image - * lines. - *

- * See scanline field, to understand the format. - * - * Format: byte (one bytes per sample) (for 16bpp the extra byte is placed in an - * extra array) - */ -public class ImageLineByte implements IImageLine, IImageLineArray { - public final ImageInfo imgInfo; - - final byte[] scanline; - final byte[] scanline2; // only used for 16 bpp (less significant byte) Normally you'd prefer - // ImageLineInt in this case - - protected FilterType filterType; // informational ; only filled by the reader. not significant for - // interlaced - final int size; // = imgInfo.samplePerRowPacked, if packed:imgInfo.samplePerRow elswhere - - public ImageLineByte(final ImageInfo imgInfo) { - this(imgInfo, null); - } - - public ImageLineByte(final ImageInfo imgInfo, final byte[] sci) { - this.imgInfo = imgInfo; - filterType = FilterType.FILTER_UNKNOWN; - size = imgInfo.samplesPerRow; - scanline = sci != null && sci.length >= size ? sci : new byte[size]; - scanline2 = imgInfo.bitDepth == 16 ? new byte[size] : null; - } - - /** - * Returns a factory for this object - */ - public static IImageLineFactory getFactory() { - return iminfo -> new ImageLineByte(iminfo); - } - - public FilterType getFilterUsed() { - return filterType; - } - - /** - * One byte per sample. This can be used also for 16bpp images, but in this - * case this loses the less significant - * 8-bits ; see also getScanlineByte2 and getElem. - */ - public byte[] getScanlineByte() { - return scanline; - } - - /** - * only for 16bpp (less significant byte) - * - * @return null for less than 16bpp - */ - public byte[] getScanlineByte2() { - return scanline2; - } - - /** - * Basic info - */ - @Override - public String toString() { - return " cols=" + imgInfo.cols + " bpc=" + imgInfo.bitDepth + " size=" + scanline.length; - } - - @Override - public void readFromPngRaw(final byte[] raw, final int len, final int offset, final int step) { - filterType = FilterType.getByVal(raw[0]); // only for non interlaced line the filter is significative - final int len1 = len - 1; - final int step1 = (step - 1) * imgInfo.channels; - if (imgInfo.bitDepth == 8) { - if (step == 1) - System.arraycopy(raw, 1, scanline, 0, len1); - else - for (int s = 1, c = 0, i = offset * imgInfo.channels; s <= len1; s++, i++) { - scanline[i] = raw[s]; - c++; - if (c == imgInfo.channels) { - c = 0; - i += step1; - } - } - } else if (imgInfo.bitDepth == 16) { - if (step == 1) - for (int i = 0, s = 1; i < imgInfo.samplesPerRow; i++) { - scanline[i] = raw[s++]; // get the first byte - scanline2[i] = raw[s++]; // get the first byte - } - else - for (int s = 1, c = 0, i = offset != 0 ? offset * imgInfo.channels : 0; s <= len1; i++) { - scanline[i] = raw[s++]; - scanline2[i] = raw[s++]; - c++; - if (c == imgInfo.channels) { - c = 0; - i += step1; - } - } - } else { // packed formats - int mask0, mask, shi, bd; - bd = imgInfo.bitDepth; - mask0 = ImageLineHelper.getMaskForPackedFormats(bd); - for (int i = offset * imgInfo.channels, r = 1, c = 0; r < len; r++) { - mask = mask0; - shi = 8 - bd; - do { - scanline[i] = (byte) ((raw[r] & mask) >> shi); - mask >>= bd; - shi -= bd; - i++; - c++; - if (c == imgInfo.channels) { - c = 0; - i += step1; - } - } while (mask != 0 && i < size); - } - } - } - - @Override - public void writeToPngRaw(final byte[] raw) { - raw[0] = (byte) filterType.val; - if (imgInfo.bitDepth == 8) - System.arraycopy(scanline, 0, raw, 1, size); - else if (imgInfo.bitDepth == 16) - for (int i = 0, s = 1; i < size; i++) { - raw[s++] = scanline[i]; - raw[s++] = scanline2[i]; - } - else { // packed formats - int shi, bd, v; - bd = imgInfo.bitDepth; - shi = 8 - bd; - v = 0; - for (int i = 0, r = 1; i < size; i++) { - v |= scanline[i] << shi; - shi -= bd; - if (shi < 0 || i == size - 1) { - raw[r++] = (byte) v; - shi = 8 - bd; - v = 0; - } - } - } - } - - @Override - public void endReadFromPngRaw() {} - - @Override - public int getSize() { - return size; - } - - @Override - public int getElem(final int i) { - return scanline2 == null ? scanline[i] & 0xFF : (scanline[i] & 0xFF) << 8 | scanline2[i] & 0xFF; - } - - public byte[] getScanline() { - return scanline; - } - - @Override - public ImageInfo getImageInfo() { - return imgInfo; - } - - @Override - public FilterType getFilterType() { - return filterType; - } - - /** - * This should rarely be used by client code. Only relevant if - * FilterPreserve==true - */ - public void setFilterType(final FilterType ft) { - filterType = ft; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ImageLineHelper.java b/teavm/src/main/java/ar/com/hjg/pngj/ImageLineHelper.java deleted file mode 100644 index 6deb44b..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ImageLineHelper.java +++ /dev/null @@ -1,469 +0,0 @@ -package ar.com.hjg.pngj; - -import java.util.Arrays; - -import ar.com.hjg.pngj.chunks.PngChunkPLTE; -import ar.com.hjg.pngj.chunks.PngChunkTRNS; - -/** - * Bunch of utility static methods to proces an image line at the pixel level. - *

- * WARNING: this has little testing/optimizing, and this API is not stable. some - * methods will probably be changed or - * removed if future releases. - *

- * WARNING: most methods for getting/setting values work currently only for - * ImageLine or ImageLineByte - */ -public class ImageLineHelper { - - static int[] DEPTH_UNPACK_1; - static int[] DEPTH_UNPACK_2; - static int[] DEPTH_UNPACK_4; - static int[][] DEPTH_UNPACK; - - static { - ImageLineHelper.initDepthScale(); - } - - private static void initDepthScale() { - ImageLineHelper.DEPTH_UNPACK_1 = new int[2]; - for (int i = 0; i < 2; i++) - ImageLineHelper.DEPTH_UNPACK_1[i] = i * 255; - ImageLineHelper.DEPTH_UNPACK_2 = new int[4]; - for (int i = 0; i < 4; i++) - ImageLineHelper.DEPTH_UNPACK_2[i] = i * 255 / 3; - ImageLineHelper.DEPTH_UNPACK_4 = new int[16]; - for (int i = 0; i < 16; i++) - ImageLineHelper.DEPTH_UNPACK_4[i] = i * 255 / 15; - ImageLineHelper.DEPTH_UNPACK = new int[][] { null, ImageLineHelper.DEPTH_UNPACK_1, ImageLineHelper.DEPTH_UNPACK_2, null, ImageLineHelper.DEPTH_UNPACK_4 }; - } - - /** - * When the bitdepth is less than 8, the imageLine is usually - * returned/expected unscaled. This method upscales it in - * place. Eg, if bitdepth=1, values 0-1 will be converted to 0-255 - */ - public static void scaleUp(final IImageLineArray line) { - if (line.getImageInfo().indexed || line.getImageInfo().bitDepth >= 8) - return; - final int[] scaleArray = ImageLineHelper.DEPTH_UNPACK[line.getImageInfo().bitDepth]; - if (line instanceof ImageLineInt) { - final ImageLineInt iline = (ImageLineInt) line; - for (int i = 0; i < iline.getSize(); i++) - iline.scanline[i] = scaleArray[iline.scanline[i]]; - } else if (line instanceof ImageLineByte) { - final ImageLineByte iline = (ImageLineByte) line; - for (int i = 0; i < iline.getSize(); i++) - iline.scanline[i] = (byte) scaleArray[iline.scanline[i]]; - } else - throw new PngjException("not implemented"); - } - - /** - * Reverse of {@link #scaleUp(IImageLineArray)} - */ - public static void scaleDown(final IImageLineArray line) { - if (line.getImageInfo().indexed || line.getImageInfo().bitDepth >= 8) - return; - if (line instanceof ImageLineInt) { - final int scalefactor = 8 - line.getImageInfo().bitDepth; - if (line instanceof ImageLineInt) { - final ImageLineInt iline = (ImageLineInt) line; - for (int i = 0; i < line.getSize(); i++) - iline.scanline[i] = iline.scanline[i] >> scalefactor; - } else if (line instanceof ImageLineByte) { - final ImageLineByte iline = (ImageLineByte) line; - for (int i = 0; i < line.getSize(); i++) - iline.scanline[i] = (byte) ((iline.scanline[i] & 0xFF) >> scalefactor); - } - } else - throw new PngjException("not implemented"); - } - - public static byte scaleUp(final int bitdepth, final byte v) { - return bitdepth < 8 ? (byte) ImageLineHelper.DEPTH_UNPACK[bitdepth][v] : v; - } - - public static byte scaleDown(final int bitdepth, final byte v) { - return bitdepth < 8 ? (byte) (v >> 8 - bitdepth) : v; - } - - /** - * Given an indexed line with a palette, unpacks as a RGB array, or RGBA if - * a non nul PngChunkTRNS chunk is passed - * - * @param line - * ImageLine as returned from PngReader - * @param pal - * Palette chunk - * @param trns - * Transparency chunk, can be null (absent) - * @param buf - * Preallocated array, optional - * @return R G B (A), one sample 0-255 per array element. Ready for - * pngw.writeRowInt() - */ - public static int[] palette2rgb(final ImageLineInt line, final PngChunkPLTE pal, final PngChunkTRNS trns, - final int[] buf) { - return ImageLineHelper.palette2rgb(line, pal, trns, buf, false); - } - - /** - * Warning: the line should be upscaled, see - * {@link #scaleUp(IImageLineArray)} - */ - static int[] lineToARGB32(final ImageLineByte line, final PngChunkPLTE pal, final PngChunkTRNS trns, int[] buf) { - final boolean alphachannel = line.imgInfo.alpha; - final int cols = line.getImageInfo().cols; - if (buf == null || buf.length < cols) - buf = new int[cols]; - int index, rgb, alpha, ga, g; - if (line.getImageInfo().indexed) {// palette - final int nindexesWithAlpha = trns != null ? trns.getPalletteAlpha().length : 0; - for (int c = 0; c < cols; c++) { - index = line.scanline[c] & 0xFF; - rgb = pal.getEntry(index); - alpha = index < nindexesWithAlpha ? trns.getPalletteAlpha()[index] : 255; - buf[c] = alpha << 24 | rgb; - } - } else if (line.imgInfo.greyscale) { // gray - ga = trns != null ? trns.getGray() : -1; - for (int c = 0, c2 = 0; c < cols; c++) { - g = line.scanline[c2++] & 0xFF; - alpha = alphachannel ? line.scanline[c2++] & 0xFF : g != ga ? 255 : 0; - buf[c] = alpha << 24 | g | g << 8 | g << 16; - } - } else { // true color - ga = trns != null ? trns.getRGB888() : -1; - for (int c = 0, c2 = 0; c < cols; c++) { - rgb = (line.scanline[c2++] & 0xFF) << 16 | (line.scanline[c2++] & 0xFF) << 8 | line.scanline[c2++] & 0xFF; - alpha = alphachannel ? line.scanline[c2++] & 0xFF : rgb != ga ? 255 : 0; - buf[c] = alpha << 24 | rgb; - } - } - return buf; - } - - /** - * Warning: the line should be upscaled, see - * {@link #scaleUp(IImageLineArray)} - */ - static byte[] lineToRGBA8888(final ImageLineByte line, final PngChunkPLTE pal, final PngChunkTRNS trns, - byte[] buf) { - final boolean alphachannel = line.imgInfo.alpha; - final int cols = line.imgInfo.cols; - final int bytes = cols * 4; - if (buf == null || buf.length < bytes) - buf = new byte[bytes]; - int index, rgb, ga; - byte val; - if (line.imgInfo.indexed) {// palette - final int nindexesWithAlpha = trns != null ? trns.getPalletteAlpha().length : 0; - for (int c = 0, b = 0; c < cols; c++) { - index = line.scanline[c] & 0xFF; - rgb = pal.getEntry(index); - buf[b++] = (byte) (rgb >> 16 & 0xFF); - buf[b++] = (byte) (rgb >> 8 & 0xFF); - buf[b++] = (byte) (rgb & 0xFF); - buf[b++] = (byte) (index < nindexesWithAlpha ? trns.getPalletteAlpha()[index] : 255); - } - } else if (line.imgInfo.greyscale) { // - ga = trns != null ? trns.getGray() : -1; - for (int c = 0, b = 0; b < bytes;) { - val = line.scanline[c++]; - buf[b++] = val; - buf[b++] = val; - buf[b++] = val; - buf[b++] = alphachannel ? line.scanline[c++] : (val & 0xFF) == ga ? (byte) 0 : (byte) 255; - } - } else if (alphachannel) // same format! - System.arraycopy(line.scanline, 0, buf, 0, bytes); - else - for (int c = 0, b = 0; b < bytes;) { - buf[b++] = line.scanline[c++]; - buf[b++] = line.scanline[c++]; - buf[b++] = line.scanline[c++]; - buf[b++] = (byte) 255; // tentative (probable) - if (trns != null && buf[b - 3] == (byte) trns.getRGB()[0] && buf[b - 2] == (byte) trns.getRGB()[1] && buf[b - 1] == (byte) trns.getRGB()[2]) // not - // very - // efficient, - // but - // not - // frecuent - buf[b - 1] = 0; - } - return buf; - } - - static byte[] lineToRGB888(final ImageLineByte line, final PngChunkPLTE pal, byte[] buf) { - final boolean alphachannel = line.imgInfo.alpha; - final int cols = line.imgInfo.cols; - final int bytes = cols * 3; - if (buf == null || buf.length < bytes) - buf = new byte[bytes]; - byte val; - final int[] rgb = new int[3]; - if (line.imgInfo.indexed) - for (int c = 0, b = 0; c < cols; c++) { - pal.getEntryRgb(line.scanline[c] & 0xFF, rgb); - buf[b++] = (byte) rgb[0]; - buf[b++] = (byte) rgb[1]; - buf[b++] = (byte) rgb[2]; - } - else if (line.imgInfo.greyscale) - for (int c = 0, b = 0; b < bytes;) { - val = line.scanline[c++]; - buf[b++] = val; - buf[b++] = val; - buf[b++] = val; - if (alphachannel) - c++; // skip alpha - } - else if (!alphachannel) // same format! - System.arraycopy(line.scanline, 0, buf, 0, bytes); - else - for (int c = 0, b = 0; b < bytes;) { - buf[b++] = line.scanline[c++]; - buf[b++] = line.scanline[c++]; - buf[b++] = line.scanline[c++]; - c++;// skip alpha - } - return buf; - } - - /** - * Same as palette2rgbx , but returns rgba always, even if trns is null - * - * @param line - * ImageLine as returned from PngReader - * @param pal - * Palette chunk - * @param trns - * Transparency chunk, can be null (absent) - * @param buf - * Preallocated array, optional - * @return R G B (A), one sample 0-255 per array element. Ready for - * pngw.writeRowInt() - */ - public static int[] palette2rgba(final ImageLineInt line, final PngChunkPLTE pal, final PngChunkTRNS trns, - final int[] buf) { - return ImageLineHelper.palette2rgb(line, pal, trns, buf, true); - } - - public static int[] palette2rgb(final ImageLineInt line, final PngChunkPLTE pal, final int[] buf) { - return ImageLineHelper.palette2rgb(line, pal, null, buf, false); - } - - /** this is not very efficient, only for tests and troubleshooting */ - public static int[] convert2rgba(final IImageLineArray line, final PngChunkPLTE pal, final PngChunkTRNS trns, - int[] buf) { - final ImageInfo imi = line.getImageInfo(); - final int nsamples = imi.cols * 4; - if (buf == null || buf.length < nsamples) - buf = new int[nsamples]; - final int maxval = imi.bitDepth == 16 ? (1 << 16) - 1 : 255; - Arrays.fill(buf, maxval); - - if (imi.indexed) { - final int tlen = trns != null ? trns.getPalletteAlpha().length : 0; - for (int s = 0; s < imi.cols; s++) { - final int index = line.getElem(s); - pal.getEntryRgb(index, buf, s * 4); - if (index < tlen) - buf[s * 4 + 3] = trns.getPalletteAlpha()[index]; - } - } else if (imi.greyscale) { - int[] unpack = null; - if (imi.bitDepth < 8) - unpack = ImageLineHelper.DEPTH_UNPACK[imi.bitDepth]; - for (int s = 0, i = 0, p = 0; p < imi.cols; p++) { - buf[s++] = unpack != null ? unpack[line.getElem(i++)] : line.getElem(i++); - buf[s] = buf[s - 1]; - s++; - buf[s] = buf[s - 1]; - s++; - if (imi.channels == 2) - buf[s++] = unpack != null ? unpack[line.getElem(i++)] : line.getElem(i++); - else - buf[s++] = maxval; - } - } else - for (int s = 0, i = 0, p = 0; p < imi.cols; p++) { - buf[s++] = line.getElem(i++); - buf[s++] = line.getElem(i++); - buf[s++] = line.getElem(i++); - buf[s++] = imi.alpha ? line.getElem(i++) : maxval; - } - return buf; - } - - private static int[] palette2rgb(final IImageLine line, final PngChunkPLTE pal, final PngChunkTRNS trns, int[] buf, - final boolean alphaForced) { - final boolean isalpha = trns != null; - final int channels = isalpha ? 4 : 3; - final ImageLineInt linei = (ImageLineInt) (line instanceof ImageLineInt ? line : null); - final ImageLineByte lineb = (ImageLineByte) (line instanceof ImageLineByte ? line : null); - final boolean isbyte = lineb != null; - final int cols = linei != null ? linei.imgInfo.cols : lineb.imgInfo.cols; - final int nsamples = cols * channels; - if (buf == null || buf.length < nsamples) - buf = new int[nsamples]; - final int nindexesWithAlpha = trns != null ? trns.getPalletteAlpha().length : 0; - for (int c = 0; c < cols; c++) { - final int index = isbyte ? lineb.scanline[c] & 0xFF : linei.scanline[c]; - pal.getEntryRgb(index, buf, c * channels); - if (isalpha) { - final int alpha = index < nindexesWithAlpha ? trns.getPalletteAlpha()[index] : 255; - buf[c * channels + 3] = alpha; - } - } - return buf; - } - - /** - * what follows is pretty uninteresting/untested/obsolete, subject to change - */ - /** - * Just for basic info or debugging. Shows values for first and last pixel. - * Does not include alpha - */ - public static String infoFirstLastPixels(final ImageLineInt line) { - return line.imgInfo.channels == 1 ? String.format("first=(%d) last=(%d)", line.scanline[0], line.scanline[line.scanline.length - 1]) : String.format("first=(%d %d %d) last=(%d %d %d)", line.scanline[0], line.scanline[1], line.scanline[2], line.scanline[line.scanline.length - line.imgInfo.channels], line.scanline[line.scanline.length - line.imgInfo.channels + 1], line.scanline[line.scanline.length - line.imgInfo.channels + 2]); - } - - /** - * integer packed R G B only for bitdepth=8! (does not check!) - * - **/ - public static int getPixelRGB8(final IImageLine line, final int column) { - if (line instanceof ImageLineInt) { - final int offset = column * ((ImageLineInt) line).imgInfo.channels; - final int[] scanline = ((ImageLineInt) line).getScanline(); - return scanline[offset] << 16 | scanline[offset + 1] << 8 | scanline[offset + 2]; - } else if (line instanceof ImageLineByte) { - final int offset = column * ((ImageLineByte) line).imgInfo.channels; - final byte[] scanline = ((ImageLineByte) line).getScanline(); - return (scanline[offset] & 0xff) << 16 | (scanline[offset + 1] & 0xff) << 8 | scanline[offset + 2] & 0xff; - } else - throw new PngjException("Not supported " + line.getClass()); - } - - public static int getPixelARGB8(final IImageLine line, final int column) { - if (line instanceof ImageLineInt) { - final int offset = column * ((ImageLineInt) line).imgInfo.channels; - final int[] scanline = ((ImageLineInt) line).getScanline(); - return scanline[offset + 3] << 24 | scanline[offset] << 16 | scanline[offset + 1] << 8 | scanline[offset + 2]; - } else if (line instanceof ImageLineByte) { - final int offset = column * ((ImageLineByte) line).imgInfo.channels; - final byte[] scanline = ((ImageLineByte) line).getScanline(); - return (scanline[offset + 3] & 0xff) << 24 | (scanline[offset] & 0xff) << 16 | (scanline[offset + 1] & 0xff) << 8 | scanline[offset + 2] & 0xff; - } else - throw new PngjException("Not supported " + line.getClass()); - } - - public static void setPixelsRGB8(final ImageLineInt line, final int[] rgb) { - for (int i = 0, j = 0; i < line.imgInfo.cols; i++) { - line.scanline[j++] = rgb[i] >> 16 & 0xFF; - line.scanline[j++] = rgb[i] >> 8 & 0xFF; - line.scanline[j++] = rgb[i] & 0xFF; - } - } - - public static void setPixelRGB8(final ImageLineInt line, int col, final int r, final int g, final int b) { - col *= line.imgInfo.channels; - line.scanline[col++] = r; - line.scanline[col++] = g; - line.scanline[col] = b; - } - - public static void setPixelRGB8(final ImageLineInt line, final int col, final int rgb) { - ImageLineHelper.setPixelRGB8(line, col, rgb >> 16 & 0xFF, rgb >> 8 & 0xFF, rgb & 0xFF); - } - - public static void setPixelsRGBA8(final ImageLineInt line, final int[] rgb) { - for (int i = 0, j = 0; i < line.imgInfo.cols; i++) { - line.scanline[j++] = rgb[i] >> 16 & 0xFF; - line.scanline[j++] = rgb[i] >> 8 & 0xFF; - line.scanline[j++] = rgb[i] & 0xFF; - line.scanline[j++] = rgb[i] >> 24 & 0xFF; - } - } - - public static void setPixelRGBA8(final ImageLineInt line, int col, final int r, final int g, final int b, - final int a) { - col *= line.imgInfo.channels; - line.scanline[col++] = r; - line.scanline[col++] = g; - line.scanline[col++] = b; - line.scanline[col] = a; - } - - public static void setPixelRGBA8(final ImageLineInt line, final int col, final int rgb) { - ImageLineHelper.setPixelRGBA8(line, col, rgb >> 16 & 0xFF, rgb >> 8 & 0xFF, rgb & 0xFF, rgb >> 24 & 0xFF); - } - - public static void setValD(final ImageLineInt line, final int i, final double d) { - line.scanline[i] = ImageLineHelper.double2int(line, d); - } - - public static int interpol(final int a, final int b, final int c, final int d, final double dx, final double dy) { - // a b -> x (0-1) - // c d - final double e = a * (1.0 - dx) + b * dx; - final double f = c * (1.0 - dx) + d * dx; - return (int) (e * (1 - dy) + f * dy + 0.5); - } - - public static double int2double(final ImageLineInt line, final int p) { - return line.imgInfo.bitDepth == 16 ? p / 65535.0 : p / 255.0; - // TODO: replace my multiplication? check for other bitdepths - } - - public static double int2doubleClamped(final ImageLineInt line, final int p) { - // TODO: replace my multiplication? - final double d = line.imgInfo.bitDepth == 16 ? p / 65535.0 : p / 255.0; - return d <= 0.0 ? 0 : d >= 1.0 ? 1.0 : d; - } - - public static int double2int(final ImageLineInt line, double d) { - d = d <= 0.0 ? 0 : d >= 1.0 ? 1.0 : d; - return line.imgInfo.bitDepth == 16 ? (int) (d * 65535.0 + 0.5) : (int) (d * 255.0 + 0.5); // - } - - public static int double2intClamped(final ImageLineInt line, double d) { - d = d <= 0.0 ? 0 : d >= 1.0 ? 1.0 : d; - return line.imgInfo.bitDepth == 16 ? (int) (d * 65535.0 + 0.5) : (int) (d * 255.0 + 0.5); // - } - - public static int clampTo_0_255(final int i) { - return i > 255 ? 255 : i < 0 ? 0 : i; - } - - public static int clampTo_0_65535(final int i) { - return i > 65535 ? 65535 : i < 0 ? 0 : i; - } - - public static int clampTo_128_127(final int x) { - return x > 127 ? 127 : x < -128 ? -128 : x; - } - - public static int getMaskForPackedFormats(final int bitDepth) { // Utility function for pack/unpack - if (bitDepth == 4) - return 0xf0; - else if (bitDepth == 2) - return 0xc0; - else - return 0x80; // bitDepth == 1 - } - - public static int getMaskForPackedFormatsLs(final int bitDepth) { // Utility function for pack/unpack - if (bitDepth == 4) - return 0x0f; - else if (bitDepth == 2) - return 0x03; - else - return 0x01; // bitDepth == 1 - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ImageLineInt.java b/teavm/src/main/java/ar/com/hjg/pngj/ImageLineInt.java deleted file mode 100644 index 310ec13..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ImageLineInt.java +++ /dev/null @@ -1,203 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Represents an image line, integer format (one integer by sample). See - * {@link #scanline} to understand the format. - */ -public class ImageLineInt implements IImageLine, IImageLineArray { - public final ImageInfo imgInfo; - - /** - * The 'scanline' is an array of integers, corresponds to an image line - * (row). - *

- * Each int is a "sample" (one for channel), (0-255 or 0-65535) - * in the corresponding PNG sequence: - * R G B R G B... or R G B A R G B A... - * or g g g ... or i i i (palette index) - *

- * For bitdepth=1/2/4 the value is not scaled (hence, eg, if bitdepth=2 the - * range will be 0-4) - *

- * To convert a indexed line to RGB values, see - * {@link ImageLineHelper#palette2rgb(ImageLineInt, ar.com.hjg.pngj.chunks.PngChunkPLTE, int[])} - * (you can't do the - * reverse) - */ - protected final int[] scanline; - - /** - * number of elements in the scanline - */ - protected final int size; - - /** - * informational ; only filled by the reader. not meaningful for interlaced - */ - protected FilterType filterType = FilterType.FILTER_UNKNOWN; - - /** - * @param imgInfo - * Inmutable ImageInfo, basic parameters of the image we are - * reading or writing - */ - public ImageLineInt(final ImageInfo imgInfo) { - this(imgInfo, null); - } - - /** - * @param imgInfo - * Inmutable ImageInfo, basic parameters of the image we are - * reading or writing - * @param sci - * prealocated buffer (can be null) - */ - public ImageLineInt(final ImageInfo imgInfo, final int[] sci) { - this.imgInfo = imgInfo; - filterType = FilterType.FILTER_UNKNOWN; - size = imgInfo.samplesPerRow; - scanline = sci != null && sci.length >= size ? sci : new int[size]; - } - - /** - * Helper method, returns a default factory for this object - * - */ - public static IImageLineFactory getFactory() { - return iminfo -> new ImageLineInt(iminfo); - } - - @Override - public FilterType getFilterType() { - return filterType; - } - - /** - * This should rarely be used by client code. Only relevant if - * FilterPreserve==true - */ - public void setFilterType(final FilterType ft) { - filterType = ft; - } - - /** - * Basic info - */ - @Override - public String toString() { - return " cols=" + imgInfo.cols + " bpc=" + imgInfo.bitDepth + " size=" + scanline.length; - } - - @Override - public void readFromPngRaw(final byte[] raw, final int len, final int offset, final int step) { - setFilterType(FilterType.getByVal(raw[0])); - final int len1 = len - 1; - final int step1 = (step - 1) * imgInfo.channels; - if (imgInfo.bitDepth == 8) { - if (step == 1) - for (int i = 0; i < size; i++) - scanline[i] = raw[i + 1] & 0xff; - else - for (int s = 1, c = 0, i = offset * imgInfo.channels; s <= len1; s++, i++) { - scanline[i] = raw[s] & 0xff; - c++; - if (c == imgInfo.channels) { - c = 0; - i += step1; - } - } - } else if (imgInfo.bitDepth == 16) { - if (step == 1) - for (int i = 0, s = 1; i < size; i++) - scanline[i] = (raw[s++] & 0xFF) << 8 | raw[s++] & 0xFF; // 16 bitspc - else - for (int s = 1, c = 0, i = offset != 0 ? offset * imgInfo.channels : 0; s <= len1; s++, i++) { - scanline[i] = (raw[s++] & 0xFF) << 8 | raw[s] & 0xFF; // 16 bitspc - c++; - if (c == imgInfo.channels) { - c = 0; - i += step1; - } - } - } else { // packed formats - int mask0, mask, shi, bd; - bd = imgInfo.bitDepth; - mask0 = ImageLineHelper.getMaskForPackedFormats(bd); - for (int i = offset * imgInfo.channels, r = 1, c = 0; r < len; r++) { - mask = mask0; - shi = 8 - bd; - do { - scanline[i++] = (raw[r] & mask) >> shi; - mask >>= bd; - shi -= bd; - c++; - if (c == imgInfo.channels) { - c = 0; - i += step1; - } - } while (mask != 0 && i < size); - } - } - } - - @Override - public void writeToPngRaw(final byte[] raw) { - raw[0] = (byte) filterType.val; - if (imgInfo.bitDepth == 8) - for (int i = 0; i < size; i++) - raw[i + 1] = (byte) scanline[i]; - else if (imgInfo.bitDepth == 16) - for (int i = 0, s = 1; i < size; i++) { - raw[s++] = (byte) (scanline[i] >> 8); - raw[s++] = (byte) (scanline[i] & 0xff); - } - else { // packed formats - int shi, bd, v; - bd = imgInfo.bitDepth; - shi = 8 - bd; - v = 0; - for (int i = 0, r = 1; i < size; i++) { - v |= scanline[i] << shi; - shi -= bd; - if (shi < 0 || i == size - 1) { - raw[r++] = (byte) v; - shi = 8 - bd; - v = 0; - } - } - } - } - - /** - * Does nothing in this implementation - */ - @Override - public void endReadFromPngRaw() { - - } - - /** - * @see #size - */ - @Override - public int getSize() { - return size; - } - - @Override - public int getElem(final int i) { - return scanline[i]; - } - - /** - * @return see {@link #scanline} - */ - public int[] getScanline() { - return scanline; - } - - @Override - public ImageInfo getImageInfo() { - return imgInfo; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/ImageLineSetDefault.java b/teavm/src/main/java/ar/com/hjg/pngj/ImageLineSetDefault.java deleted file mode 100644 index d1a1ed2..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/ImageLineSetDefault.java +++ /dev/null @@ -1,159 +0,0 @@ -package ar.com.hjg.pngj; - -import java.util.ArrayList; -import java.util.List; - -/** - * Default implementation of {@link IImageLineSet}. - *

- * Supports all modes: single cursor, full rows, or partial. This should not be - * used for - */ -public abstract class ImageLineSetDefault implements IImageLineSet { - - protected final ImageInfo imgInfo; - private final boolean singleCursor; - private final int nlines, offset, step; - protected List imageLines; // null if single cursor - protected T imageLine; // null unless single cursor - protected int currentRow = -1; // only relevant (and not much) for cursor - - public ImageLineSetDefault(final ImageInfo imgInfo, final boolean singleCursor, final int nlinesx, final int noffsetx, final int stepx) { - this.imgInfo = imgInfo; - this.singleCursor = singleCursor; - if (singleCursor) { - this.nlines = 1; // we store only one line, no matter how many will be read - offset = 0; - this.step = 1;// don't matter - } else { - this.nlines = nlinesx; // note that it can also be 1 - offset = noffsetx; - this.step = stepx;// don't matter - } - createImageLines(); - } - - private void createImageLines() { - if (singleCursor) - imageLine = createImageLine(); - else { - imageLines = new ArrayList<>(); - for (int i = 0; i < nlines; i++) - imageLines.add(createImageLine()); - } - } - - protected abstract T createImageLine(); - - /** - * Retrieves the image line - *

- * Warning: the argument is the row number in the original image - *

- * If this is a cursor, no check is done, always the same row is returned - */ - @Override - public T getImageLine(final int n) { - currentRow = n; - if (singleCursor) - return imageLine; - else { - final int r = imageRowToMatrixRowStrict(n); - if (r < 0) - throw new PngjException("Invalid row number"); - return imageLines.get(r); - } - } - - /** - * does not check for valid range - */ - @Override - public T getImageLineRawNum(final int r) { - if (singleCursor) - return imageLine; - else - return imageLines.get(r); - } - - /** - * True if the set contains this image line - *

- * Warning: the argument is the row number in the original image - *

- * If this works as cursor, this returns true only if that is the number of - * its "current" line - */ - @Override - public boolean hasImageLine(final int n) { - return singleCursor ? currentRow == n : imageRowToMatrixRowStrict(n) >= 0; - } - - /** - * How many lines does this object contain? - */ - @Override - public int size() { - return nlines; - } - - /** - * Same as {@link #imageRowToMatrixRow(int)}, but returns negative if - * invalid - */ - public int imageRowToMatrixRowStrict(int imrow) { - imrow -= offset; - final int mrow = imrow >= 0 && (step == 1 || imrow % step == 0) ? imrow / step : -1; - return mrow < nlines ? mrow : -1; - } - - /** - * Converts from matrix row number (0 : nRows-1) to image row number - * - * @param mrow - * Matrix row number - * @return Image row number. Returns trash if mrow is invalid - */ - public int matrixRowToImageRow(final int mrow) { - return mrow * step + offset; - } - - /** - * Converts from real image row to this object row number. - *

- * Warning: this always returns a valid matrix row (clamping on 0 : nrows-1, - * and rounding down) - *

- * Eg: rowOffset=4,rowStep=2 imageRowToMatrixRow(17) returns 6 , - * imageRowToMatrixRow(1) returns 0 - */ - public int imageRowToMatrixRow(final int imrow) { - final int r = (imrow - offset) / step; - return r < 0 ? 0 : r < nlines ? r : nlines - 1; - } - - /** - * utility function, given a factory for one line, returns a factory for a - * set - */ - public static IImageLineSetFactory createImageLineSetFactoryFromImageLineFactory( - final IImageLineFactory ifactory) { // ugly method must have ugly name. don't let this intimidate you - return (iminfo, singleCursor, nlines, noffset, - step) -> new ImageLineSetDefault(iminfo, singleCursor, nlines, noffset, step) { - @Override - protected T createImageLine() { - return ifactory.createImageLine(iminfo); - } - }; - } - - /** utility function, returns default factory for {@link ImageLineInt} */ - public static IImageLineSetFactory getFactoryInt() { - return ImageLineSetDefault.createImageLineSetFactoryFromImageLineFactory(ImageLineInt.getFactory()); - } - - /** utility function, returns default factory for {@link ImageLineByte} */ - public static IImageLineSetFactory getFactoryByte() { - return ImageLineSetDefault.createImageLineSetFactoryFromImageLineFactory(ImageLineByte.getFactory()); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngHelperInternal.java b/teavm/src/main/java/ar/com/hjg/pngj/PngHelperInternal.java deleted file mode 100644 index 79be507..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngHelperInternal.java +++ /dev/null @@ -1,332 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.FileInputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.nio.charset.Charset; -import java.util.logging.Logger; - -/** - * Some utility static methods for internal use. - *

- * Client code should not normally use this class - *

- */ -public final class PngHelperInternal { - - public static final String KEY_LOGGER = "ar.com.pngj"; - public static final Logger LOGGER = Logger.getLogger(PngHelperInternal.KEY_LOGGER); - - /** - * Default charset, used internally by PNG for several things - */ - public static String charsetLatin1name = "UTF-8"; - public static Charset charsetLatin1 = Charset.forName(PngHelperInternal.charsetLatin1name); - /** - * UTF-8 is only used for some chunks - */ - public static String charsetUTF8name = "UTF-8"; - public static Charset charsetUTF8 = Charset.forName(PngHelperInternal.charsetUTF8name); - - private static ThreadLocal DEBUG = new ThreadLocal() { - @Override - protected Boolean initialValue() { - return Boolean.FALSE; - } - }; - - /** - * PNG magic bytes - */ - public static byte[] getPngIdSignature() { - return new byte[] { -119, 80, 78, 71, 13, 10, 26, 10 }; - } - - public static int doubleToInt100000(final double d) { - return (int) (d * 100000.0 + 0.5); - } - - public static double intToDouble100000(final int i) { - return i / 100000.0; - } - - public static int readByte(final InputStream is) { - try { - return is.read(); - } catch (final IOException e) { - throw new PngjInputException("error reading byte", e); - } - } - - /** - * -1 if eof - * - * PNG uses "network byte order" - */ - public static int readInt2(final InputStream is) { - try { - final int b1 = is.read(); - final int b2 = is.read(); - if (b1 == -1 || b2 == -1) - return -1; - return b1 << 8 | b2; - } catch (final IOException e) { - throw new PngjInputException("error reading Int2", e); - } - } - - /** - * -1 if eof - */ - public static int readInt4(final InputStream is) { - try { - final int b1 = is.read(); - final int b2 = is.read(); - final int b3 = is.read(); - final int b4 = is.read(); - if (b1 == -1 || b2 == -1 || b3 == -1 || b4 == -1) - return -1; - return b1 << 24 | b2 << 16 | (b3 << 8) + b4; - } catch (final IOException e) { - throw new PngjInputException("error reading Int4", e); - } - } - - public static int readInt1fromByte(final byte[] b, final int offset) { - return b[offset] & 0xff; - } - - public static int readInt2fromBytes(final byte[] b, final int offset) { - return (b[offset] & 0xff) << 8 | b[offset + 1] & 0xff; - } - - public static int readInt4fromBytes(final byte[] b, final int offset) { - return (b[offset] & 0xff) << 24 | (b[offset + 1] & 0xff) << 16 | (b[offset + 2] & 0xff) << 8 | b[offset + 3] & 0xff; - } - - public static void writeByte(final OutputStream os, final byte b) { - try { - os.write(b); - } catch (final IOException e) { - throw new PngjOutputException(e); - } - } - - public static void writeByte(final OutputStream os, final byte[] bs) { - try { - os.write(bs); - } catch (final IOException e) { - throw new PngjOutputException(e); - } - } - - public static void writeInt2(final OutputStream os, final int n) { - final byte[] temp = { (byte) (n >> 8 & 0xff), (byte) (n & 0xff) }; - PngHelperInternal.writeBytes(os, temp); - } - - public static void writeInt4(final OutputStream os, final int n) { - final byte[] temp = new byte[4]; - PngHelperInternal.writeInt4tobytes(n, temp, 0); - PngHelperInternal.writeBytes(os, temp); - } - - public static void writeInt2tobytes(final int n, final byte[] b, final int offset) { - b[offset] = (byte) (n >> 8 & 0xff); - b[offset + 1] = (byte) (n & 0xff); - } - - public static void writeInt4tobytes(final int n, final byte[] b, final int offset) { - b[offset] = (byte) (n >> 24 & 0xff); - b[offset + 1] = (byte) (n >> 16 & 0xff); - b[offset + 2] = (byte) (n >> 8 & 0xff); - b[offset + 3] = (byte) (n & 0xff); - } - - /** - * guaranteed to read exactly len bytes. throws error if it can't - */ - public static void readBytes(final InputStream is, final byte[] b, final int offset, final int len) { - if (len == 0) - return; - try { - int read = 0; - while (read < len) { - final int n = is.read(b, offset + read, len - read); - if (n < 1) - throw new PngjInputException("error reading bytes, " + n + " !=" + len); - read += n; - } - } catch (final IOException e) { - throw new PngjInputException("error reading", e); - } - } - - public static void skipBytes(final InputStream is, long len) { - try { - while (len > 0) { - final long n1 = is.skip(len); - if (n1 > 0) - len -= n1; - else if (n1 == 0) { // should we retry? lets read one byte - if (is.read() == -1) // EOF - break; - else - len--; - } else - // negative? this should never happen but... - throw new IOException("skip() returned a negative value ???"); - } - } catch (final IOException e) { - throw new PngjInputException(e); - } - } - - public static void writeBytes(final OutputStream os, final byte[] b) { - try { - os.write(b); - } catch (final IOException e) { - throw new PngjOutputException(e); - } - } - - public static void writeBytes(final OutputStream os, final byte[] b, final int offset, final int n) { - try { - os.write(b, offset, n); - } catch (final IOException e) { - throw new PngjOutputException(e); - } - } - - public static void logdebug(final String msg) { - if (PngHelperInternal.isDebug()) - System.err.println("logdebug: " + msg); - } - - // / filters - public static int filterRowNone(final int r) { - return r & 0xFF; - } - - public static int filterRowSub(final int r, final int left) { - return r - left & 0xFF; - } - - public static int filterRowUp(final int r, final int up) { - return r - up & 0xFF; - } - - public static int filterRowAverage(final int r, final int left, final int up) { - return r - (left + up) / 2 & 0xFF; - } - - public static int filterRowPaeth(final int r, final int left, final int up, final int upleft) { // a = left, b = above, c - // = upper left - return r - PngHelperInternal.filterPaethPredictor(left, up, upleft) & 0xFF; - } - - static int filterPaethPredictor(final int a, final int b, final int c) { // a = left, b = - // above, c = upper - // left - // from http://www.libpng.org/pub/png/spec/1.2/PNG-Filters.html - - final int p = a + b - c;// ; initial estimate - final int pa = p >= a ? p - a : a - p; - final int pb = p >= b ? p - b : b - p; - final int pc = p >= c ? p - c : c - p; - // ; return nearest of a,b,c, - // ; breaking ties in order a,b,c. - if (pa <= pb && pa <= pc) - return a; - else if (pb <= pc) - return b; - else - return c; - } - - /** - * Prits a debug message (prints class name, method and line number) - * - * @param obj - * : Object to print - */ - public static void debug(final Object obj) { - PngHelperInternal.debug(obj, 1, true); - } - - /** - * Prits a debug message (prints class name, method and line number) - * - * @param obj - * : Object to print - * @param offset - * : Offset N lines from stacktrace - */ - static void debug(final Object obj, final int offset) { - PngHelperInternal.debug(obj, offset, true); - } - - public static InputStream istreamFromFile(final File f) { - FileInputStream is; - try { - is = new FileInputStream(f); - } catch (final Exception e) { - throw new PngjInputException("Could not open " + f, e); - } - return is; - } - - static OutputStream ostreamFromFile(final File f) { - return PngHelperInternal.ostreamFromFile(f, true); - } - - static OutputStream ostreamFromFile(final File f, final boolean overwrite) { - return PngHelperInternal2.ostreamFromFile(f, overwrite); - } - - /** - * Prints a debug message (prints class name, method and line number) to - * stderr and logFile - * - * @param obj - * : Object to print - * @param offset - * : Offset N lines from stacktrace - * @param newLine - * : Print a newline char at the end ('\n') - */ - static void debug(final Object obj, final int offset, final boolean newLine) { - final StackTraceElement ste = new Exception().getStackTrace()[1 + offset]; - String steStr = ste.getClassName(); - final int ind = steStr.lastIndexOf('.'); - steStr = steStr.substring(ind + 1); - steStr += "." + ste.getMethodName() + "(" + ste.getLineNumber() + "): " + (obj == null ? null : obj.toString()); - System.err.println(steStr); - } - - /** - * Sets a global debug flag. This is bound to a thread. - */ - public static void setDebug(final boolean b) { - PngHelperInternal.DEBUG.set(b); - } - - public static boolean isDebug() { - return PngHelperInternal.DEBUG.get().booleanValue(); - } - - public static long getDigest(final PngReader pngr) { - return pngr.getSimpleDigest(); - } - - public static void initCrcForTests(final PngReader pngr) { - pngr.prepareSimpleDigestComputation(); - } - - public static long getRawIdatBytes(final PngReader r) { // in case of image with frames, returns the current one - return r.interlaced ? r.getChunkseq().getDeinterlacer().getTotalRawBytes() : r.getCurImgInfo().getTotalRawBytes(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngHelperInternal2.java b/teavm/src/main/java/ar/com/hjg/pngj/PngHelperInternal2.java deleted file mode 100644 index 58e702a..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngHelperInternal2.java +++ /dev/null @@ -1,35 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.OutputStream; - -/** - * For organization purposes, this class is the onlt that uses classes not in - * GAE (Google App Engine) white list - *

- * You should not use this class in GAE - */ -final class PngHelperInternal2 { - - /** - * WARNING: this uses FileOutputStream which is not allowed in - * GoogleAppEngine - * - * In GAE, dont use this - * - * @param f - * @param allowoverwrite - * @return - */ - static OutputStream ostreamFromFile(final File f, final boolean allowoverwrite) { - java.io.FileOutputStream os = null; // this will fail in GAE! - if (f.exists() && !allowoverwrite) - throw new PngjOutputException("File already exists: " + f); - try { - os = new java.io.FileOutputStream(f); - } catch (final Exception e) { - throw new PngjInputException("Could not open for write" + f, e); - } - return os; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngReader.java b/teavm/src/main/java/ar/com/hjg/pngj/PngReader.java deleted file mode 100644 index efb5e9a..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngReader.java +++ /dev/null @@ -1,647 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.InputStream; -import java.util.zip.Adler32; -import java.util.zip.CRC32; - -import ar.com.hjg.pngj.chunks.ChunkLoadBehaviour; -import ar.com.hjg.pngj.chunks.ChunksList; -import ar.com.hjg.pngj.chunks.PngChunkFCTL; -import ar.com.hjg.pngj.chunks.PngChunkFDAT; -import ar.com.hjg.pngj.chunks.PngChunkIDAT; -import ar.com.hjg.pngj.chunks.PngMetadata; - -/** - * Reads a PNG image (pixels and/or metadata) from a file or stream. - *

- * Each row is read as an {@link ImageLineInt} object (one int per sample), but - * this can be changed by setting a - * different ImageLineFactory - *

- * Internally, this wraps a {@link ChunkSeqReaderPng} with a - * {@link BufferedStreamFeeder} - *

- * The reading sequence is as follows:
- * 1. At construction time, the header and IHDR chunk are read (basic image - * info)
- * 2. Afterwards you can set some additional global options. Eg. - * {@link #setCrcCheckDisabled()}.
- * 3. Optional: If you call getMetadata() or getChunksLisk() before start - * reading the rows, all the chunks before IDAT - * are then loaded and available
- * 4a. The rows are read in order by calling {@link #readRow()}. You can also - * call {@link #readRow(int)} to skip rows - * -but you can't go backwards, at least not with this implementation. This - * method returns a {@link IImageLine} object - * which can be casted to the concrete class. This class returns by default a - * {@link ImageLineInt}, but this can be - * changed.
- * 4b. Alternatively, you can read all rows, or a subset, in a single call: - * {@link #readRows()}, - * {@link #readRows(int, int, int)} ,etc. In general this consumes more memory, - * but for interlaced images this is - * equally efficient, and more so if reading a small subset of rows.
- * 5. Reading of the last row automatically loads the trailing chunks, and ends - * the reader.
- * 6. end() also loads the trailing chunks, if not done, and finishes cleanly - * the reading and closes the stream. - *

- * See also {@link PngReaderInt} (esentially the same as this, and slightly - * preferred) and {@link PngReaderByte} (uses - * byte instead of int to store the samples). - */ -public class PngReader { - - // some performance/defensive limits - /** - * Defensive limit: refuse to read more than 900MB, can be changed with - * {@link #setMaxTotalBytesRead(long)} - */ - public static final long MAX_TOTAL_BYTES_READ_DEFAULT = 901001001L; // ~ 900MB - - /** - * Defensive limit: refuse to load more than 5MB of ancillary metadata, see - * {@link #setMaxBytesMetadata(long)} and - * also {@link #addChunkToSkip(String)} - */ - public static final long MAX_BYTES_METADATA_DEFAULT = 5024024; // for ancillary chunks - - /** - * Skip ancillary chunks greater than 2MB, see - * {@link #setSkipChunkMaxSize(long)} - */ - public static final long MAX_CHUNK_SIZE_SKIP = 2024024; // chunks exceeding this size will be skipped (nor even CRC - // checked) - - /** - * Basic image info - final and inmutable. - */ - public final ImageInfo imgInfo; // People always told me: be careful what you do, and don't go around declaring public - // fields... - /** - * flag: image was in interlaced format - */ - public final boolean interlaced; - - /** - * This object has most of the intelligence to parse the chunks and - * decompress the IDAT stream - */ - protected final ChunkSeqReaderPng chunkseq; - - /** - * Takes bytes from the InputStream and passes it to the ChunkSeqReaderPng. - * Never null. - */ - protected final BufferedStreamFeeder streamFeeder; - - /** - * @see #getMetadata() - */ - protected final PngMetadata metadata; // this a wrapper over chunks - - /** - * Current row number (reading or read), numbered from 0 - */ - protected int rowNum = -1; - - /** - * Represents the set of lines (rows) being read. Normally this works as a - * cursor, storing only one (the current) row. - * This stores several (perhaps all) rows only if calling - * {@link #readRows()} or for interlaced images (this later is - * transparent to the user) - */ - protected IImageLineSet imlinesSet; - - /** - * This factory decides the concrete type of the ImageLine that will be - * used. See {@link ImageLineSetDefault} for - * examples - */ - private IImageLineSetFactory imageLineSetFactory; - - CRC32 idatCrca;// for internal testing - Adler32 idatCrcb;// for internal testing - - /** - * Constructs a PngReader object from a stream, with default options. This - * reads the signature and the first IHDR - * chunk only. - *

- * Warning: In case of exception the stream is NOT closed. - *

- * Warning: By default the stream will be closed when this object is - * {@link #close()}d. See - * {@link #PngReader(InputStream,boolean)} or - * {@link #setShouldCloseStream(boolean)} - *

- * - * @param inputStream - * PNG stream - */ - public PngReader(final InputStream inputStream) { - this(inputStream, true); - } - - /** - * Same as {@link #PngReader(InputStream)} but allows to specify early if - * the stream must be closed - * - * @param inputStream - * @param shouldCloseStream - * The stream will be closed in case of exception (constructor - * included) or normal - * termination. - */ - public PngReader(final InputStream inputStream, final boolean shouldCloseStream) { - streamFeeder = new BufferedStreamFeeder(inputStream); - streamFeeder.setCloseStream(shouldCloseStream); - chunkseq = createChunkSeqReader(); - try { - streamFeeder.setFailIfNoFeed(true); - if (!streamFeeder.feedFixed(chunkseq, 36)) // 8+13+12=36 PNG signature+IHDR chunk - throw new PngjInputException("error reading first 21 bytes"); - imgInfo = chunkseq.getImageInfo(); - interlaced = chunkseq.getDeinterlacer() != null; - setMaxBytesMetadata(PngReader.MAX_BYTES_METADATA_DEFAULT); - setMaxTotalBytesRead(PngReader.MAX_TOTAL_BYTES_READ_DEFAULT); - setSkipChunkMaxSize(PngReader.MAX_CHUNK_SIZE_SKIP); - chunkseq.addChunkToSkip(PngChunkFDAT.ID);// default: skip fdAT chunks! - chunkseq.addChunkToSkip(PngChunkFCTL.ID);// default: skip fctl chunks! - metadata = new PngMetadata(chunkseq.chunksList); - // sets a default factory (with ImageLineInt), - // this can be overwriten by a extended constructor, or by a setter - setLineSetFactory(ImageLineSetDefault.getFactoryInt()); - rowNum = -1; - } catch (final RuntimeException e) { - streamFeeder.close(); - chunkseq.close(); - throw e; - } - } - - /** - * Constructs a PngReader opening a file. Sets - * shouldCloseStream=true, so that the stream will be closed with - * this object. - * - * @param file - * PNG image file - */ - public PngReader(final File file) { - this(PngHelperInternal.istreamFromFile(file), true); - } - - /** - * Reads chunks before first IDAT. Normally this is called automatically - *

- * Position before: after IDHR (crc included) Position after: just after the - * first IDAT chunk id - *

- * This can be called several times (tentatively), it does nothing if - * already run - *

- * (Note: when should this be called? in the constructor? hardly, because we - * loose the opportunity to call - * setChunkLoadBehaviour() and perhaps other settings before reading the - * first row? but sometimes we want to access - * some metadata (plte, phys) before. Because of this, this method can be - * called explicitly but is also called - * implicititly in some methods (getMetatada(), getChunksList()) - */ - protected void readFirstChunks() { - while (chunkseq.currentChunkGroup < ChunksList.CHUNK_GROUP_4_IDAT) - if (streamFeeder.feed(chunkseq) <= 0) - throw new PngjInputException("premature ending reading first chunks"); - } - - /** - * Determines which ancillary chunks (metadata) are to be loaded and which - * skipped. - *

- * Additional restrictions may apply. See also - * {@link #setChunksToSkip(String...)}, {@link #addChunkToSkip(String)}, - * {@link #setMaxBytesMetadata(long)}, {@link #setSkipChunkMaxSize(long)} - * - * @param chunkLoadBehaviour - * {@link ChunkLoadBehaviour} - */ - public void setChunkLoadBehaviour(final ChunkLoadBehaviour chunkLoadBehaviour) { - chunkseq.setChunkLoadBehaviour(chunkLoadBehaviour); - } - - /** - * All loaded chunks (metada). If we have not yet end reading the image, - * this will include only the chunks before the - * pixels data (IDAT) - *

- * Critical chunks are included, except that all IDAT chunks appearance are - * replaced by a single dummy-marker IDAT - * chunk. These might be copied to the PngWriter - *

- * - * @see #getMetadata() - */ - public ChunksList getChunksList() { - return getChunksList(true); - } - - public ChunksList getChunksList(final boolean forceLoadingOfFirstChunks) { - if (forceLoadingOfFirstChunks && chunkseq.firstChunksNotYetRead()) - readFirstChunks(); - return chunkseq.chunksList; - } - - int getCurrentChunkGroup() { - return chunkseq.currentChunkGroup; - } - - /** - * High level wrapper over chunksList - * - * @see #getChunksList() - */ - public PngMetadata getMetadata() { - if (chunkseq.firstChunksNotYetRead()) - readFirstChunks(); - return metadata; - } - - /** - * Reads next row. - * - * The caller must know that there are more rows to read. - * - * @return Never null. Throws PngInputException if no more - */ - public IImageLine readRow() { - return readRow(rowNum + 1); - } - - /** - * True if last row has not yet been read - */ - public boolean hasMoreRows() { - return rowNum < getCurImgInfo().rows - 1; - } - - /** - * The row number is mostly meant as a check, the rows must be called in - * ascending order (not necessarily consecutive) - */ - public IImageLine readRow(final int nrow) { - if (chunkseq.firstChunksNotYetRead()) - readFirstChunks(); - if (!interlaced) { - if (imlinesSet == null) - imlinesSet = createLineSet(true, -1, 0, 1); - final IImageLine line = imlinesSet.getImageLine(nrow); - if (nrow == rowNum) - return line; // already read?? - else if (nrow < rowNum) - throw new PngjInputException("rows must be read in increasing order: " + nrow); - while (rowNum < nrow) { - while (!chunkseq.getIdatSet().isRowReady()) - if (streamFeeder.feed(chunkseq) < 1) - throw new PngjInputException("premature ending"); - rowNum++; - chunkseq.getIdatSet().updateCrcs(idatCrca, idatCrcb); - if (rowNum == nrow) { - line.readFromPngRaw(chunkseq.getIdatSet().getUnfilteredRow(), getCurImgInfo().bytesPerRow + 1, 0, 1); - line.endReadFromPngRaw(); - } - chunkseq.getIdatSet().advanceToNextRow(); - } - return line; - } else { // and now, for something completely different (interlaced!) - if (imlinesSet == null) { - imlinesSet = createLineSet(false, getCurImgInfo().rows, 0, 1); - loadAllInterlaced(getCurImgInfo().rows, 0, 1); - } - rowNum = nrow; - return imlinesSet.getImageLine(nrow); - } - - } - - /** - * Reads all rows in a ImageLineSet This is handy, but less memory-efficient - * (except for interlaced) - */ - public IImageLineSet readRows() { - return readRows(getCurImgInfo().rows, 0, 1); - } - - /** - * Reads a subset of rows. - *

- * This method should called once, and not be mixed with {@link #readRow()} - * - * @param nRows - * how many rows to read (default: imageInfo.rows; negative: - * autocompute) - * @param rowOffset - * rows to skip (default:0) - * @param rowStep - * step between rows to load( default:1) - */ - public IImageLineSet readRows(int nRows, final int rowOffset, final int rowStep) { - if (chunkseq.firstChunksNotYetRead()) - readFirstChunks(); - if (nRows < 0) - nRows = (getCurImgInfo().rows - rowOffset) / rowStep; - if (rowStep < 1 || rowOffset < 0 || nRows == 0 || nRows * rowStep + rowOffset > getCurImgInfo().rows) - throw new PngjInputException("bad args"); - if (rowNum >= rowOffset) - throw new PngjInputException("readRows cannot be mixed with readRow"); - imlinesSet = createLineSet(false, nRows, rowOffset, rowStep); - if (!interlaced) { - int m = -1; // last row already read in - while (m < nRows - 1) { - while (!chunkseq.getIdatSet().isRowReady()) - if (streamFeeder.feed(chunkseq) < 1) - throw new PngjInputException("Premature ending"); - rowNum++; - chunkseq.getIdatSet().updateCrcs(idatCrca, idatCrcb); - m = (rowNum - rowOffset) / rowStep; - if (rowNum >= rowOffset && rowStep * m + rowOffset == rowNum) { - final IImageLine line = imlinesSet.getImageLine(rowNum); - line.readFromPngRaw(chunkseq.getIdatSet().getUnfilteredRow(), getCurImgInfo().bytesPerRow + 1, 0, 1); - line.endReadFromPngRaw(); - } - chunkseq.getIdatSet().advanceToNextRow(); - } - } else - loadAllInterlaced(nRows, rowOffset, rowStep); - chunkseq.getIdatSet().done(); - return imlinesSet; - } - - /** - * Sets the factory that creates the ImageLine. By default, this - * implementation uses ImageLineInt but this can be - * changed (at construction time or later) by calling this method. - *

- * See also {@link #createLineSet(boolean, int, int, int)} - * - * @param factory - */ - public void setLineSetFactory(final IImageLineSetFactory factory) { - imageLineSetFactory = factory; - } - - /** - * By default this uses the factory (which, by default creates - * ImageLineInt). You should rarely override this. - *

- * See doc in - * {@link IImageLineSetFactory#create(ImageInfo, boolean, int, int, int)} - */ - protected IImageLineSet createLineSet(final boolean singleCursor, final int nlines, - final int noffset, final int step) { - return imageLineSetFactory.create(getCurImgInfo(), singleCursor, nlines, noffset, step); - } - - protected void loadAllInterlaced(final int nRows, final int rowOffset, final int rowStep) { - final IdatSet idat = chunkseq.getIdatSet(); - int nread = 0; - do { - while (!chunkseq.getIdatSet().isRowReady()) - if (streamFeeder.feed(chunkseq) <= 0) - break; - if (!chunkseq.getIdatSet().isRowReady()) - throw new PngjInputException("Premature ending?"); - chunkseq.getIdatSet().updateCrcs(idatCrca, idatCrcb); - final int rowNumreal = idat.rowinfo.rowNreal; - final boolean inset = imlinesSet.hasImageLine(rowNumreal); - if (inset) { - imlinesSet.getImageLine(rowNumreal).readFromPngRaw(idat.getUnfilteredRow(), idat.rowinfo.buflen, idat.rowinfo.oX, idat.rowinfo.dX); - nread++; - } - idat.advanceToNextRow(); - } while (nread < nRows || !idat.isDone()); - idat.done(); - for (int i = 0, j = rowOffset; i < nRows; i++, j += rowStep) - imlinesSet.getImageLine(j).endReadFromPngRaw(); - } - - /** - * Reads all the (remaining) file, skipping the pixels data. This is much - * more efficient that calling - * {@link #readRow()}, specially for big files (about 10 times faster!), - * because it doesn't even decompress the IDAT - * stream and disables CRC check Use this if you are not interested in - * reading pixels,only metadata. - */ - public void readSkippingAllRows() { - chunkseq.addChunkToSkip(PngChunkIDAT.ID); - chunkseq.addChunkToSkip(PngChunkFDAT.ID); - if (chunkseq.firstChunksNotYetRead()) - readFirstChunks(); - end(); - } - - /** - * Set total maximum bytes to read (0: unlimited; default: 200MB).
- * These are the bytes read (not loaded) in the input stream. If exceeded, - * an exception will be thrown. - */ - public void setMaxTotalBytesRead(final long maxTotalBytesToRead) { - chunkseq.setMaxTotalBytesRead(maxTotalBytesToRead); - } - - /** - * Set total maximum bytes to load from ancillary chunks (0: unlimited; - * default: 5Mb).
- * If exceeded, some chunks will be skipped - */ - public void setMaxBytesMetadata(final long maxBytesMetadata) { - chunkseq.setMaxBytesMetadata(maxBytesMetadata); - } - - /** - * Set maximum size in bytes for individual ancillary chunks (0: unlimited; - * default: 2MB).
- * Chunks exceeding this length will be skipped (the CRC will not be - * checked) and the chunk will be saved as a - * PngChunkSkipped object. See also setSkipChunkIds - */ - public void setSkipChunkMaxSize(final long skipChunkMaxSize) { - chunkseq.setSkipChunkMaxSize(skipChunkMaxSize); - } - - /** - * Chunks ids to be skipped.
- * These chunks will be skipped (the CRC will not be checked) and the chunk - * will be saved as a PngChunkSkipped object. - * See also setSkipChunkMaxSize - */ - public void setChunksToSkip(final String... chunksToSkip) { - chunkseq.setChunksToSkip(chunksToSkip); - } - - public void addChunkToSkip(final String chunkToSkip) { - chunkseq.addChunkToSkip(chunkToSkip); - } - - public void dontSkipChunk(final String chunkToSkip) { - chunkseq.dontSkipChunk(chunkToSkip); - } - - /** - * if true, input stream will be closed after ending read - *

- * default=true - */ - public void setShouldCloseStream(final boolean shouldCloseStream) { - streamFeeder.setCloseStream(shouldCloseStream); - } - - /** - * Reads till end of PNG stream and call close() - * - * This should normally be called after reading the pixel data, to read the - * trailing chunks and close the stream. But - * it can be called at anytime. This will also read the first chunks if not - * still read, and skip pixels (IDAT) if - * still pending. - * - * If you want to read all metadata skipping pixels, readSkippingAllRows() - * is a little more efficient. - * - * If you want to abort immediately, call instead close() - */ - public void end() { - try { - if (chunkseq.firstChunksNotYetRead()) - readFirstChunks(); - if (chunkseq.getIdatSet() != null && !chunkseq.getIdatSet().isDone()) - chunkseq.getIdatSet().done(); - while (!chunkseq.isDone()) - if (streamFeeder.feed(chunkseq) <= 0) - break; - } finally { - close(); - } - } - - /** - * Releases resources, and closes stream if corresponds. Idempotent, secure, - * no exceptions. - * - * This can be also called for abort. It is recommended to call this in case - * of exceptions - */ - public void close() { - try { - if (chunkseq != null) - chunkseq.close(); - } catch (final Exception e) { - PngHelperInternal.LOGGER.warning("error closing chunk sequence:" + e.getMessage()); - } - if (streamFeeder != null) - streamFeeder.close(); - } - - /** - * Interlaced PNG is accepted -though not welcomed- now... - */ - public boolean isInterlaced() { - return interlaced; - } - - /** - * Disables the CRC integrity check in IDAT chunks and ancillary chunks, - * this gives a slight increase in reading speed - * for big files - */ - public void setCrcCheckDisabled() { - chunkseq.setCheckCrc(false); - } - - /** - * Gets wrapped {@link ChunkSeqReaderPng} object - */ - public ChunkSeqReaderPng getChunkseq() { - return chunkseq; - } - - /** - * called on construction time. Override if you want an alternative class - */ - protected ChunkSeqReaderPng createChunkSeqReader() { - return new ChunkSeqReaderPng(false); - } - - /** - * Enables and prepare the simple digest computation. Must be called before - * reading the pixels. See - * {@link #getSimpleDigestHex()} - */ - public void prepareSimpleDigestComputation() { - if (idatCrca == null) - idatCrca = new CRC32(); - else - idatCrca.reset(); - if (idatCrcb == null) - idatCrcb = new Adler32(); - else - idatCrcb.reset(); - imgInfo.updateCrc(idatCrca); - idatCrcb.update((byte) imgInfo.rows); // not important - } - - long getSimpleDigest() { - if (idatCrca == null) - return 0; - else - return idatCrca.getValue() ^ idatCrcb.getValue() << 31; - } - - /** - * Pseudo 64-bits digest computed over the basic image properties and the - * raw pixels data: it should coincide for - * equivalent images encoded with different filters and compressors; but - * will not coincide for - * interlaced/non-interlaced; also, this does not take into account the - * palette info. This will be valid only if - * {@link #prepareSimpleDigestComputation()} has been called, and all rows - * have been read. Not fool-proof, not - * cryptografically secure, only for informal testing and duplicates - * detection. - * - * @return A 64-digest in hexadecimal - */ - public String getSimpleDigestHex() { - return String.format("%016X", getSimpleDigest()); - } - - /** - * Basic info, for debugging. - */ - @Override - public String toString() { // basic info - return imgInfo.toString() + " interlaced=" + interlaced; - } - - /** - * Basic info, in a compact format, apt for scripting - * COLSxROWS[dBITDEPTH][a][p][g][i] ( the default dBITDEPTH='d8' is - * ommited) - * - */ - public String toStringCompact() { - return imgInfo.toStringBrief() + (interlaced ? "i" : ""); - } - - public ImageInfo getImgInfo() { - return imgInfo; - } - - public ImageInfo getCurImgInfo() { - return chunkseq.getCurImgInfo(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngReaderApng.java b/teavm/src/main/java/ar/com/hjg/pngj/PngReaderApng.java deleted file mode 100644 index 14b54e7..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngReaderApng.java +++ /dev/null @@ -1,211 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.InputStream; -import java.util.List; - -import ar.com.hjg.pngj.chunks.PngChunk; -import ar.com.hjg.pngj.chunks.PngChunkACTL; -import ar.com.hjg.pngj.chunks.PngChunkFCTL; -import ar.com.hjg.pngj.chunks.PngChunkFDAT; -import ar.com.hjg.pngj.chunks.PngChunkIDAT; - -/** - */ -public class PngReaderApng extends PngReaderByte { - - public PngReaderApng(final File file) { - super(file); - dontSkipChunk(PngChunkFCTL.ID); - } - - public PngReaderApng(final InputStream inputStream) { - super(inputStream); - dontSkipChunk(PngChunkFCTL.ID); - } - - private Boolean apngKind = null; - private boolean firsIdatApngFrame = false; - protected PngChunkACTL actlChunk; // null if not APNG - private PngChunkFCTL fctlChunk; // current (null for the pseudo still frame) - - /** - * Current frame number (reading or read). First animated frame is 0. Frame - * -1 represents the IDAT (default image) - * when it's not part of the animation - */ - protected int frameNum = -1; // incremented after each fctl finding - - public boolean isApng() { - if (apngKind == null) { - // this triggers the loading of first chunks; - actlChunk = (PngChunkACTL) getChunksList().getById1(PngChunkACTL.ID); // null if not apng - apngKind = actlChunk != null; - firsIdatApngFrame = fctlChunk != null; - - } - return apngKind.booleanValue(); - } - - public void advanceToFrame(final int frame) { - if (frame < frameNum) - throw new PngjInputException("Cannot go backwards"); - if (frame >= getApngNumFrames()) - throw new PngjInputException("Frame out of range " + frame); - if (frame > frameNum) { - addChunkToSkip(PngChunkIDAT.ID); - addChunkToSkip(PngChunkFDAT.ID); - if (chunkseq.getIdatSet() != null && !chunkseq.getIdatSet().isDone()) - chunkseq.getIdatSet().done(); // seems to be necessary sometimes (we should check this) - while (frameNum < frame & !chunkseq.isDone()) - if (streamFeeder.feed(chunkseq) <= 0) - break; - } - if (frame == frameNum) { // prepare to read rows. at this point we have a new - dontSkipChunk(PngChunkIDAT.ID); - dontSkipChunk(PngChunkFDAT.ID); - rowNum = -1; - imlinesSet = null;// force recreation (this is slightly dirty) - // seek the next IDAT/fDAT - TODO: set the expected sequence number - while (!chunkseq.isDone() && !chunkseq.getCurChunkReader().isFromDeflatedSet()) - if (streamFeeder.feed(chunkseq) <= 0) - break; - } else - throw new PngjInputException("unexpected error seeking from frame " + frame); - } - - /** - * True if it has a default image (IDAT) that is not part of the animation. - * In that case, we consider it as a - * pseudo-frame (number -1) - */ - public boolean hasExtraStillImage() { - return isApng() && !firsIdatApngFrame; - } - - /** - * Only counts true animation frames. - */ - public int getApngNumFrames() { - if (isApng()) - return actlChunk.getNumFrames(); - else - return 0; - } - - /** - * 0 if it's to been played infinitely. -1 if not APNG - */ - public int getApngNumPlays() { - if (isApng()) - return actlChunk.getNumPlays(); - else - return -1; - } - - @Override - public IImageLine readRow() { - // TODO Auto-generated method stub - return super.readRow(); - } - - @Override - public boolean hasMoreRows() { - // TODO Auto-generated method stub - return super.hasMoreRows(); - } - - @Override - public IImageLine readRow(final int nrow) { - // TODO Auto-generated method stub - return super.readRow(nrow); - } - - @Override - public IImageLineSet readRows() { - // TODO Auto-generated method stub - return super.readRows(); - } - - @Override - public IImageLineSet readRows(final int nRows, final int rowOffset, final int rowStep) { - // TODO Auto-generated method stub - return super.readRows(nRows, rowOffset, rowStep); - } - - @Override - public void readSkippingAllRows() { - // TODO Auto-generated method stub - super.readSkippingAllRows(); - } - - @Override - protected ChunkSeqReaderPng createChunkSeqReader() { - final ChunkSeqReaderPng cr = new ChunkSeqReaderPng(false) { - - @Override - public boolean shouldSkipContent(final int len, final String id) { - return super.shouldSkipContent(len, id); - } - - @Override - protected boolean isIdatKind(final String id) { - return id.equals(PngChunkIDAT.ID) || id.equals(PngChunkFDAT.ID); - } - - @Override - protected DeflatedChunksSet createIdatSet(final String id) { - final IdatSet ids = new IdatSet(id, getCurImgInfo(), deinterlacer); - ids.setCallbackMode(callbackMode); - return ids; - } - - @Override - protected void startNewChunk(final int len, final String id, final long offset) { - super.startNewChunk(len, id, offset); - } - - @Override - protected void postProcessChunk(final ChunkReader chunkR) { - super.postProcessChunk(chunkR); - if (chunkR.getChunkRaw().id.equals(PngChunkFCTL.ID)) { - frameNum++; - final List chunkslist = chunkseq.getChunks(); - fctlChunk = (PngChunkFCTL) chunkslist.get(chunkslist.size() - 1); - // as this is slightly dirty, we check - if (chunkR.getChunkRaw().getOffset() != fctlChunk.getRaw().getOffset()) - throw new PngjInputException("something went wrong"); - final ImageInfo frameInfo = fctlChunk.getEquivImageInfo(); - getChunkseq().updateCurImgInfo(frameInfo); - } - } - - @SuppressWarnings("unlikely-arg-type") - @Override - protected boolean countChunkTypeAsAncillary(final String id) { - // we don't count fdat as ancillary data - return super.countChunkTypeAsAncillary(id) && !id.equals(id.equals(PngChunkFDAT.ID)); - } - - }; - return cr; - } - - /** - * @see #frameNum - */ - public int getFrameNum() { - return frameNum; - } - - @Override - public void end() { - // TODO Auto-generated method stub - super.end(); - } - - public PngChunkFCTL getFctl() { - return fctlChunk; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngReaderByte.java b/teavm/src/main/java/ar/com/hjg/pngj/PngReaderByte.java deleted file mode 100644 index 0830704..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngReaderByte.java +++ /dev/null @@ -1,32 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.InputStream; - -/** - * Trivial extension of {@link PngReader} that uses {@link ImageLineByte} - *

- * The factory is set at construction time. Remember that this could still be - * changed at runtime. - */ -public class PngReaderByte extends PngReader { - - public PngReaderByte(final File file) { - super(file); - setLineSetFactory(ImageLineSetDefault.getFactoryByte()); - } - - public PngReaderByte(final InputStream inputStream) { - super(inputStream); - setLineSetFactory(ImageLineSetDefault.getFactoryByte()); - } - - /** - * Utility method that casts {@link #readRow()} return to - * {@link ImageLineByte}. - */ - public ImageLineByte readRowByte() { - return (ImageLineByte) readRow(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngReaderFilter.java b/teavm/src/main/java/ar/com/hjg/pngj/PngReaderFilter.java deleted file mode 100644 index b234156..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngReaderFilter.java +++ /dev/null @@ -1,101 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.FilterInputStream; -import java.io.IOException; -import java.io.InputStream; -import java.util.List; - -import ar.com.hjg.pngj.chunks.PngChunk; - -/** - * This class allows to use a simple PNG reader as an input filter, wrapping a - * ChunkSeqReaderPng in callback mode. - * - * In this sample implementation, all IDAT chunks are skipped and the rest are - * stored. An example of use, that lets us - * grab the Metadata and let the pixels go towards a BufferedImage: - * - * - * 

- * PngReaderFilter reader = new PngReaderFilter(new FileInputStream("image.png"));
- * BufferedImage image1 = ImageIO.read(reader);
- * reader.readUntilEndAndClose(); // in case ImageIO.read() does not read the traling chunks (it happens)
- * System.out.println(reader.getChunksList());
- *
- * - */ -public class PngReaderFilter extends FilterInputStream { - - private final ChunkSeqReaderPng chunkseq; - - public PngReaderFilter(final InputStream arg0) { - super(arg0); - chunkseq = createChunkSequenceReader(); - } - - protected ChunkSeqReaderPng createChunkSequenceReader() { - return new ChunkSeqReaderPng(true) { - @Override - public boolean shouldSkipContent(final int len, final String id) { - return super.shouldSkipContent(len, id) || id.equals("IDAT"); - } - - @Override - protected boolean shouldCheckCrc(final int len, final String id) { - return false; - } - - @Override - protected void postProcessChunk(final ChunkReader chunkR) { - super.postProcessChunk(chunkR); - // System.out.println("processed chunk " + chunkR.getChunkRaw().id); - } - }; - } - - @Override - public void close() throws IOException { - super.close(); - chunkseq.close(); - } - - @Override - public int read() throws IOException { - final int r = super.read(); - if (r > 0) - chunkseq.feedAll(new byte[] { (byte) r }, 0, 1); - return r; - } - - @Override - public int read(final byte[] b, final int off, final int len) throws IOException { - final int res = super.read(b, off, len); - if (res > 0) - chunkseq.feedAll(b, off, res); - return res; - } - - @Override - public int read(final byte[] b) throws IOException { - final int res = super.read(b); - if (res > 0) - chunkseq.feedAll(b, 0, res); - return res; - } - - public void readUntilEndAndClose() throws IOException { - final BufferedStreamFeeder br = new BufferedStreamFeeder(in); - while (!chunkseq.isDone() && br.hasMoreToFeed()) - br.feed(chunkseq); - close(); - } - - public List getChunksList() { - return chunkseq.getChunks(); - } - - public ChunkSeqReaderPng getChunkseq() { - return chunkseq; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngReaderInt.java b/teavm/src/main/java/ar/com/hjg/pngj/PngReaderInt.java deleted file mode 100644 index aef62bc..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngReaderInt.java +++ /dev/null @@ -1,39 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.InputStream; - -/** - * Trivial extension of {@link PngReader} that uses {@link ImageLineInt}. - *

- * In the current implementation this is quite dummy/redundant, because (for - * backward compatibility) PngReader already - * uses a {@link ImageLineInt}. - *

- * The factory is set at construction time. Remember that this could still be - * changed at runtime. - */ -public class PngReaderInt extends PngReader { - - public PngReaderInt(final File file) { - super(file); // not necessary to set factory, PngReader already does that - } - - public PngReaderInt(final InputStream inputStream) { - super(inputStream); - } - - /** - * Utility method that casts the IImageLine to a ImageLineInt - * - * This only make sense for this concrete class - * - */ - public ImageLineInt readRowInt() { - final IImageLine line = readRow(); - if (line instanceof ImageLineInt) - return (ImageLineInt) line; - else - throw new PngjException("This is not a ImageLineInt : " + line.getClass()); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngWriter.java b/teavm/src/main/java/ar/com/hjg/pngj/PngWriter.java deleted file mode 100644 index 2be57f3..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngWriter.java +++ /dev/null @@ -1,453 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.OutputStream; -import java.util.List; - -import ar.com.hjg.pngj.chunks.ChunkCopyBehaviour; -import ar.com.hjg.pngj.chunks.ChunkPredicate; -import ar.com.hjg.pngj.chunks.ChunksList; -import ar.com.hjg.pngj.chunks.ChunksListForWrite; -import ar.com.hjg.pngj.chunks.PngChunk; -import ar.com.hjg.pngj.chunks.PngChunkIEND; -import ar.com.hjg.pngj.chunks.PngChunkIHDR; -import ar.com.hjg.pngj.chunks.PngChunkPLTE; -import ar.com.hjg.pngj.chunks.PngMetadata; -import ar.com.hjg.pngj.pixels.PixelsWriter; -import ar.com.hjg.pngj.pixels.PixelsWriterDefault; - -/** - * Writes a PNG image, line by line. - */ -public class PngWriter { - - public final ImageInfo imgInfo; - - /** - * last writen row number, starting from 0 - */ - protected int rowNum = -1; - - private final ChunksListForWrite chunksList; - - private final PngMetadata metadata; - - /** - * Current chunk grounp, (0-6) already written or currently writing (this is - * advanced when just starting to write the - * new group, not when finalizing the previous) - *

- * see {@link ChunksList} - */ - protected int currentChunkGroup = -1; - - private final int passes = 1; // Some writes might require two passes (NOT USED STILL) - private int currentpass = 0; // numbered from 1 - - private boolean shouldCloseStream = true; - - private int idatMaxSize = 0; // 0=use default (PngIDatChunkOutputStream 64k) - // private PngIDatChunkOutputStream datStream; - - protected PixelsWriter pixelsWriter; - - private final OutputStream os; - - private ChunkPredicate copyFromPredicate = null; - private ChunksList copyFromList = null; - - protected StringBuilder debuginfo = new StringBuilder(); - - /** - * Opens a file for writing. - *

- * Sets shouldCloseStream=true. For more info see - * {@link #PngWriter(OutputStream, ImageInfo)} - * - * @param file - * @param imgInfo - * @param allowoverwrite - * If false and file exists, an {@link PngjOutputException} is - * thrown - */ - public PngWriter(final File file, final ImageInfo imgInfo, final boolean allowoverwrite) { - this(PngHelperInternal.ostreamFromFile(file, allowoverwrite), imgInfo); - setShouldCloseStream(true); - } - - /** - * @see #PngWriter(File, ImageInfo, boolean) (overwrite=true) - */ - public PngWriter(final File file, final ImageInfo imgInfo) { - this(file, imgInfo, true); - } - - /** - * Constructs a new PngWriter from a output stream. After construction - * nothing is writen yet. You still can set some - * parameters (compression, filters) and queue chunks before start writing - * the pixels. - *

- * - * @param outputStream - * Open stream for binary writing - * @param imgInfo - * Basic image parameters - */ - public PngWriter(final OutputStream outputStream, final ImageInfo imgInfo) { - os = outputStream; - this.imgInfo = imgInfo; - // prealloc - chunksList = new ChunksListForWrite(imgInfo); - metadata = new PngMetadata(chunksList); - pixelsWriter = createPixelsWriter(imgInfo); - setCompLevel(9); - } - - private void initIdat() { // this triggers the writing of first chunks - pixelsWriter.setOs(os); - pixelsWriter.setIdatMaxSize(idatMaxSize); - writeSignatureAndIHDR(); - writeFirstChunks(); - } - - private void writeEndChunk() { - currentChunkGroup = ChunksList.CHUNK_GROUP_6_END; - final PngChunkIEND c = new PngChunkIEND(imgInfo); - c.createRawChunk().writeChunk(os); - chunksList.getChunks().add(c); - } - - private void writeFirstChunks() { - if (currentChunkGroup >= ChunksList.CHUNK_GROUP_4_IDAT) - return; - int nw = 0; - currentChunkGroup = ChunksList.CHUNK_GROUP_1_AFTERIDHR; - queueChunksFromOther(); - nw = chunksList.writeChunks(os, currentChunkGroup); - currentChunkGroup = ChunksList.CHUNK_GROUP_2_PLTE; - nw = chunksList.writeChunks(os, currentChunkGroup); - if (nw > 0 && imgInfo.greyscale) - throw new PngjOutputException("cannot write palette for this format"); - if (nw == 0 && imgInfo.indexed) - throw new PngjOutputException("missing palette"); - currentChunkGroup = ChunksList.CHUNK_GROUP_3_AFTERPLTE; - nw = chunksList.writeChunks(os, currentChunkGroup); - } - - private void writeLastChunks() { // not including end - currentChunkGroup = ChunksList.CHUNK_GROUP_5_AFTERIDAT; - queueChunksFromOther(); - chunksList.writeChunks(os, currentChunkGroup); - // should not be unwriten chunks - final List pending = chunksList.getQueuedChunks(); - if (!pending.isEmpty()) - throw new PngjOutputException(pending.size() + " chunks were not written! Eg: " + pending.get(0).toString()); - } - - /** - * Write id signature and also "IHDR" chunk - */ - private void writeSignatureAndIHDR() { - PngHelperInternal.writeBytes(os, PngHelperInternal.getPngIdSignature()); // signature - currentChunkGroup = ChunksList.CHUNK_GROUP_0_IDHR; - final PngChunkIHDR ihdr = new PngChunkIHDR(imgInfo); - // http://www.libpng.org/pub/png/spec/1.2/PNG-Chunks.html - ihdr.createRawChunk().writeChunk(os); - chunksList.getChunks().add(ihdr); - } - - private void queueChunksFromOther() { - if (copyFromList == null || copyFromPredicate == null) - return; - final boolean idatDone = currentChunkGroup >= ChunksList.CHUNK_GROUP_4_IDAT; // we assume this method is not either before - // or after the IDAT writing, not in the - // middle! - for (final PngChunk chunk : copyFromList.getChunks()) { - if (chunk.getRaw().data == null) - continue; // we cannot copy skipped chunks? - final int groupOri = chunk.getChunkGroup(); - if (groupOri <= ChunksList.CHUNK_GROUP_4_IDAT && idatDone) - continue; - if (groupOri >= ChunksList.CHUNK_GROUP_4_IDAT && !idatDone) - continue; - if (chunk.crit && !chunk.id.equals(PngChunkPLTE.ID)) - continue; // critical chunks (except perhaps PLTE) are never - // copied - final boolean copy = copyFromPredicate.match(chunk); - if (copy) - // but if the chunk is already queued or writen, it's ommited! - if (chunksList.getEquivalent(chunk).isEmpty() && chunksList.getQueuedEquivalent(chunk).isEmpty()) - chunksList.queue(chunk); - } - } - - /** - * Queues an ancillary chunk for writing. - *

- * If a "equivalent" chunk is already queued (see - * {@link ChunkHelper#equivalent(PngChunk, PngChunk)), this overwrites it. - *

- * The chunk will be written as late as possible, unless the priority is - * set. - * - * @param chunk - */ - public void queueChunk(final PngChunk chunk) { - for (final PngChunk other : chunksList.getQueuedEquivalent(chunk)) - getChunksList().removeChunk(other); - chunksList.queue(chunk); - } - - /** - * Sets an origin (typically from a {@link PngReader}) of Chunks to be - * copied. This should be called only once, before - * starting writing the rows. It doesn't matter the current state of the - * PngReader reading, this is a live object and - * what matters is that when the writer writes the pixels (IDAT) the reader - * has already read them, and that when the - * writer ends, the reader is already ended (all this is very natural). - *

- * Apart from the copyMask, there is some addional heuristics: - *

- * - The chunks will be queued, but will be written as late as possible - * (unless you explicitly set priority=true) - *

- * - The chunk will not be queued if an "equivalent" chunk was already - * queued explicitly. And it will be overwriten - * another is queued explicitly. - * - * @param chunks - * @param copyMask - * Some bitmask from {@link ChunkCopyBehaviour} - * - * @see #copyChunksFrom(ChunksList, ChunkPredicate) - */ - public void copyChunksFrom(final ChunksList chunks, final int copyMask) { - copyChunksFrom(chunks, ChunkCopyBehaviour.createPredicate(copyMask, imgInfo)); - } - - /** - * Copy all chunks from origin. See {@link #copyChunksFrom(ChunksList, int)} - * for more info - */ - public void copyChunksFrom(final ChunksList chunks) { - copyChunksFrom(chunks, ChunkCopyBehaviour.COPY_ALL); - } - - /** - * Copy chunks from origin depending on some {@link ChunkPredicate} - * - * @param chunks - * @param predicate - * The chunks (ancillary or PLTE) will be copied if and only if - * predicate matches - * - * @see #copyChunksFrom(ChunksList, int) for more info - */ - public void copyChunksFrom(final ChunksList chunks, final ChunkPredicate predicate) { - if (copyFromList != null && chunks != null) - PngHelperInternal.LOGGER.warning("copyChunksFrom should only be called once"); - if (predicate == null) - throw new PngjOutputException("copyChunksFrom requires a predicate"); - copyFromList = chunks; - copyFromPredicate = predicate; - } - - /** - * Computes compressed size/raw size, approximate. - *

- * Actually: compressed size = total size of IDAT data , raw size = - * uncompressed pixel bytes = rows * (bytesPerRow + - * 1). - * - * This must be called after pngw.end() - */ - public double computeCompressionRatio() { - if (currentChunkGroup < ChunksList.CHUNK_GROUP_5_AFTERIDAT) - throw new PngjOutputException("must be called after end()"); - return pixelsWriter.getCompression(); - } - - /** - * Finalizes all the steps and closes the stream. This must be called after - * writing the lines. Idempotent - */ - public void end() { - if (rowNum != imgInfo.rows - 1 || !pixelsWriter.isDone()) - throw new PngjOutputException("all rows have not been written"); - try { - if (pixelsWriter != null) - pixelsWriter.close(); - if (currentChunkGroup < ChunksList.CHUNK_GROUP_5_AFTERIDAT) - writeLastChunks(); - if (currentChunkGroup < ChunksList.CHUNK_GROUP_6_END) - writeEndChunk(); - } finally { - close(); - } - } - - /** - * Closes and releases resources - *

- * This is normally called internally from {@link #end()}, you should only - * call this for aborting the writing and - * release resources (close the stream). - *

- * Idempotent and secure - never throws exceptions - */ - public void close() { - if (pixelsWriter != null) - pixelsWriter.close(); - if (shouldCloseStream && os != null) - try { - os.close(); - } catch (final Exception e) { - PngHelperInternal.LOGGER.warning("Error closing writer " + e.toString()); - } - } - - /** - * returns the chunks list (queued and writen chunks) - */ - public ChunksListForWrite getChunksList() { - return chunksList; - } - - /** - * Retruns a high level wrapper over for metadata handling - */ - public PngMetadata getMetadata() { - return metadata; - } - - /** - * Sets internal prediction filter type, or strategy to choose it. - *

- * This must be called just after constructor, before starting writing. - *

- */ - public void setFilterType(final FilterType filterType) { - pixelsWriter.setFilterType(filterType); - } - - /** - * This is kept for backwards compatibility, now the PixelsWriter object - * should be used for setting - * compression/filtering options - * - * @see PixelsWriter#setCompressionFactor(double) - * @param compLevel - * between 0 (no compression, max speed) and 9 (max compression) - */ - public void setCompLevel(final int complevel) { - pixelsWriter.setDeflaterCompLevel(complevel); - } - - /** - * - */ - public void setFilterPreserve(final boolean filterPreserve) { - if (filterPreserve) - pixelsWriter.setFilterType(FilterType.FILTER_PRESERVE); - else if (pixelsWriter.getFilterType() == null) - pixelsWriter.setFilterType(FilterType.FILTER_DEFAULT); - } - - /** - * Sets maximum size of IDAT fragments. Incrementing this from the default - * has very little effect on compression and - * increments memory usage. You should rarely change this. - *

- * - * @param idatMaxSize - * default=0 : use defaultSize (32K) - */ - public void setIdatMaxSize(final int idatMaxSize) { - this.idatMaxSize = idatMaxSize; - } - - /** - * If true, output stream will be closed after ending write - *

- * default=true - */ - public void setShouldCloseStream(final boolean shouldCloseStream) { - this.shouldCloseStream = shouldCloseStream; - } - - /** - * Writes next row, does not check row number. - * - * @param imgline - */ - public void writeRow(final IImageLine imgline) { - writeRow(imgline, rowNum + 1); - } - - /** - * Writes the full set of row. The ImageLineSet should contain (allow to - * acces) imgInfo.rows - */ - public void writeRows(final IImageLineSet imglines) { - for (int i = 0; i < imgInfo.rows; i++) - writeRow(imglines.getImageLineRawNum(i)); - } - - public void writeRow(final IImageLine imgline, int rownumber) { - rowNum++; - if (rowNum == imgInfo.rows) - rowNum = 0; - if (rownumber == imgInfo.rows) - rownumber = 0; - if (rownumber >= 0 && rowNum != rownumber) - throw new PngjOutputException("rows must be written in order: expected:" + rowNum + " passed:" + rownumber); - if (rowNum == 0) - currentpass++; - if (rownumber == 0 && currentpass == passes) { - initIdat(); - currentChunkGroup = ChunksList.CHUNK_GROUP_4_IDAT; // we just begin writing IDAT - } - final byte[] rowb = pixelsWriter.getRowb(); - imgline.writeToPngRaw(rowb); - pixelsWriter.processRow(rowb); - - } - - /** - * Utility method, uses internaly a ImageLineInt - */ - public void writeRowInt(final int[] buf) { - writeRow(new ImageLineInt(imgInfo, buf)); - } - - /** - * Factory method for pixels writer. This will be called once at the moment - * at start writing a set of IDAT chunks - * (typically once in a normal PNG) - * - * This should be overriden if custom filtering strategies are desired. - * Remember to release this with close() - * - * @param imginfo - * Might be different than that of this object (eg: APNG with - * subimages) - * @param os - * Output stream - * @return new PixelsWriter. Don't forget to call close() when discarding it - */ - protected PixelsWriter createPixelsWriter(final ImageInfo imginfo) { - final PixelsWriterDefault pw = new PixelsWriterDefault(imginfo); - return pw; - } - - public final PixelsWriter getPixelsWriter() { - return pixelsWriter; - } - - public String getDebuginfo() { - return debuginfo.toString(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngWriterHc.java b/teavm/src/main/java/ar/com/hjg/pngj/PngWriterHc.java deleted file mode 100644 index aec2140..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngWriterHc.java +++ /dev/null @@ -1,35 +0,0 @@ -package ar.com.hjg.pngj; - -import java.io.File; -import java.io.OutputStream; - -import ar.com.hjg.pngj.pixels.PixelsWriter; -import ar.com.hjg.pngj.pixels.PixelsWriterMultiple; - -/** Pngwriter with High compression EXPERIMENTAL */ -public class PngWriterHc extends PngWriter { - - public PngWriterHc(final File file, final ImageInfo imgInfo, final boolean allowoverwrite) { - super(file, imgInfo, allowoverwrite); - setFilterType(FilterType.FILTER_SUPER_ADAPTIVE); - } - - public PngWriterHc(final File file, final ImageInfo imgInfo) { - super(file, imgInfo); - } - - public PngWriterHc(final OutputStream outputStream, final ImageInfo imgInfo) { - super(outputStream, imgInfo); - } - - @Override - protected PixelsWriter createPixelsWriter(final ImageInfo imginfo) { - final PixelsWriterMultiple pw = new PixelsWriterMultiple(imginfo); - return pw; - } - - public PixelsWriterMultiple getPixelWriterMultiple() { - return (PixelsWriterMultiple) pixelsWriter; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngjBadCrcException.java b/teavm/src/main/java/ar/com/hjg/pngj/PngjBadCrcException.java deleted file mode 100644 index 1efbada..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngjBadCrcException.java +++ /dev/null @@ -1,20 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Exception thrown by bad CRC check - */ -public class PngjBadCrcException extends PngjInputException { - private static final long serialVersionUID = 1L; - - public PngjBadCrcException(final String message, final Throwable cause) { - super(message, cause); - } - - public PngjBadCrcException(final String message) { - super(message); - } - - public PngjBadCrcException(final Throwable cause) { - super(cause); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngjException.java b/teavm/src/main/java/ar/com/hjg/pngj/PngjException.java deleted file mode 100644 index f99f1df..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngjException.java +++ /dev/null @@ -1,20 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Generic exception for this library. It's a RuntimeException (unchecked) - */ -public class PngjException extends RuntimeException { - private static final long serialVersionUID = 1L; - - public PngjException(final String message, final Throwable cause) { - super(message, cause); - } - - public PngjException(final String message) { - super(message); - } - - public PngjException(final Throwable cause) { - super(cause); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngjExceptionInternal.java b/teavm/src/main/java/ar/com/hjg/pngj/PngjExceptionInternal.java deleted file mode 100644 index 5113ac0..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngjExceptionInternal.java +++ /dev/null @@ -1,24 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Exception for anomalous internal problems (sort of asserts) that point to - * some issue with the library - * - * @author Hernan J Gonzalez - * - */ -public class PngjExceptionInternal extends RuntimeException { - private static final long serialVersionUID = 1L; - - public PngjExceptionInternal(final String message, final Throwable cause) { - super(message, cause); - } - - public PngjExceptionInternal(final String message) { - super(message); - } - - public PngjExceptionInternal(final Throwable cause) { - super(cause); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngjInputException.java b/teavm/src/main/java/ar/com/hjg/pngj/PngjInputException.java deleted file mode 100644 index 8dbe745..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngjInputException.java +++ /dev/null @@ -1,20 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Exception thrown when reading a PNG. - */ -public class PngjInputException extends PngjException { - private static final long serialVersionUID = 1L; - - public PngjInputException(final String message, final Throwable cause) { - super(message, cause); - } - - public PngjInputException(final String message) { - super(message); - } - - public PngjInputException(final Throwable cause) { - super(cause); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngjOutputException.java b/teavm/src/main/java/ar/com/hjg/pngj/PngjOutputException.java deleted file mode 100644 index 3698c5b..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngjOutputException.java +++ /dev/null @@ -1,20 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Exception thrown by writing process - */ -public class PngjOutputException extends PngjException { - private static final long serialVersionUID = 1L; - - public PngjOutputException(final String message, final Throwable cause) { - super(message, cause); - } - - public PngjOutputException(final String message) { - super(message); - } - - public PngjOutputException(final Throwable cause) { - super(cause); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/PngjUnsupportedException.java b/teavm/src/main/java/ar/com/hjg/pngj/PngjUnsupportedException.java deleted file mode 100644 index 2c2ae9b..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/PngjUnsupportedException.java +++ /dev/null @@ -1,25 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Exception thrown because of some valid feature of PNG standard that this - * library does not support. - */ -public class PngjUnsupportedException extends RuntimeException { - private static final long serialVersionUID = 1L; - - public PngjUnsupportedException() { - super(); - } - - public PngjUnsupportedException(final String message, final Throwable cause) { - super(message, cause); - } - - public PngjUnsupportedException(final String message) { - super(message); - } - - public PngjUnsupportedException(final Throwable cause) { - super(cause); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/RowInfo.java b/teavm/src/main/java/ar/com/hjg/pngj/RowInfo.java deleted file mode 100644 index 33f78ef..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/RowInfo.java +++ /dev/null @@ -1,55 +0,0 @@ -package ar.com.hjg.pngj; - -/** - * Packs information of current row. Only used internally - */ -class RowInfo { - public final ImageInfo imgInfo; - public final Deinterlacer deinterlacer; - public final boolean imode; // Interlaced - int dY, dX, oY, oX; // current step and offset (in pixels) - int rowNseq; // row number (from 0) in sequential read order - int rowNreal; // row number in the real image - int rowNsubImg; // current row in the virtual subsampled image; this increments (by 1) from 0 to - // rows/dy 7 times - int rowsSubImg, colsSubImg; // size of current subimage , in pixels - int bytesRow; - int pass; // 1-7 - byte[] buf; // non-deep copy - int buflen; // valid bytes in buffer (include filter byte) - - public RowInfo(final ImageInfo imgInfo, final Deinterlacer deinterlacer) { - this.imgInfo = imgInfo; - this.deinterlacer = deinterlacer; - imode = deinterlacer != null; - } - - void update(final int rowseq) { - rowNseq = rowseq; - if (imode) { - pass = deinterlacer.getPass(); - dX = deinterlacer.dX; - dY = deinterlacer.dY; - oX = deinterlacer.oX; - oY = deinterlacer.oY; - rowNreal = deinterlacer.getCurrRowReal(); - rowNsubImg = deinterlacer.getCurrRowSubimg(); - rowsSubImg = deinterlacer.getRows(); - colsSubImg = deinterlacer.getCols(); - bytesRow = (imgInfo.bitspPixel * colsSubImg + 7) / 8; - } else { - pass = 1; - dX = dY = 1; - oX = oY = 0; - rowNreal = rowNsubImg = rowseq; - rowsSubImg = imgInfo.rows; - colsSubImg = imgInfo.cols; - bytesRow = imgInfo.bytesPerRow; - } - } - - void updateBuf(final byte[] buf, final int buflen) { - this.buf = buf; - this.buflen = buflen; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkCopyBehaviour.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkCopyBehaviour.java deleted file mode 100644 index 9522455..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkCopyBehaviour.java +++ /dev/null @@ -1,97 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngReader; -import ar.com.hjg.pngj.PngWriter; - -/** - * Chunk copy policy to apply when copyng from a {@link PngReader} to a - * {@link PngWriter}. - *

- * The constants are bit-masks, they can be OR-ed - *

- * Reference: - * http://www.w3.org/TR/PNG/#14
- */ -public class ChunkCopyBehaviour { - - /** Don't copy anything */ - public static final int COPY_NONE = 0; - - /** copy the palette */ - public static final int COPY_PALETTE = 1; - - /** copy all 'safe to copy' chunks */ - public static final int COPY_ALL_SAFE = 1 << 2; - - /** - * copy all, including palette - */ - public static final int COPY_ALL = 1 << 3; // includes palette! - /** - * Copy PHYS chunk (physical resolution) - */ - public static final int COPY_PHYS = 1 << 4; // dpi - /** - * Copy al textual chunks. - */ - public static final int COPY_TEXTUAL = 1 << 5; // all textual types - /** - * Copy TRNS chunk - */ - public static final int COPY_TRANSPARENCY = 1 << 6; // - /** - * Copy unknown chunks (unknown by our factory) - */ - public static final int COPY_UNKNOWN = 1 << 7; // all unknown (by the factory!) - /** - * Copy almost all: excepts only HIST (histogram) TIME and TEXTUAL chunks - */ - public static final int COPY_ALMOSTALL = 1 << 8; - - private static boolean maskMatch(final int v, final int mask) { - return (v & mask) != 0; - } - - /** - * Creates a predicate equivalent to the copy mask - *

- * Given a copy mask (see static fields) and the ImageInfo of the target - * PNG, returns a predicate that tells if a - * chunk should be copied. - *

- * This is a handy helper method, you can also create and set your own - * predicate - */ - public static ChunkPredicate createPredicate(final int copyFromMask, final ImageInfo imgInfo) { - return chunk -> { - if (chunk.crit) { - if (chunk.id.equals(ChunkHelper.PLTE)) { - if (imgInfo.indexed && ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_PALETTE)) - return true; - if (!imgInfo.greyscale && ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_ALL)) - return true; - } - } else { // ancillary - final boolean text = chunk instanceof PngChunkTextVar; - final boolean safe = chunk.safe; - // notice that these if are not exclusive - if (ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_ALL)) - return true; - if (safe && ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_ALL_SAFE)) - return true; - if (chunk.id.equals(ChunkHelper.tRNS) && ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_TRANSPARENCY)) - return true; - if (chunk.id.equals(ChunkHelper.pHYs) && ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_PHYS)) - return true; - if (text && ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_TEXTUAL)) - return true; - if (ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_ALMOSTALL) && !(ChunkHelper.isUnknown(chunk) || text || chunk.id.equals(ChunkHelper.hIST) || chunk.id.equals(ChunkHelper.tIME))) - return true; - if (ChunkCopyBehaviour.maskMatch(copyFromMask, ChunkCopyBehaviour.COPY_UNKNOWN) && ChunkHelper.isUnknown(chunk)) - return true; - } - return false; - }; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkFactory.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkFactory.java deleted file mode 100644 index 351980c..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkFactory.java +++ /dev/null @@ -1,112 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.IChunkFactory; -import ar.com.hjg.pngj.ImageInfo; - -/** - * Default chunk factory. - *

- * The user that wants to parse custom chunks can extend - * {@link #createEmptyChunkExtended(String, ImageInfo)} - */ -public class ChunkFactory implements IChunkFactory { - - boolean parse; - - public ChunkFactory() { - this(true); - } - - public ChunkFactory(final boolean parse) { - this.parse = parse; - } - - @Override - public final PngChunk createChunk(final ChunkRaw chunkRaw, final ImageInfo imgInfo) { - PngChunk c = createEmptyChunkKnown(chunkRaw.id, imgInfo); - if (c == null) - c = createEmptyChunkExtended(chunkRaw.id, imgInfo); - if (c == null) - c = createEmptyChunkUnknown(chunkRaw.id, imgInfo); - c.setRaw(chunkRaw); - if (parse && chunkRaw.data != null) - c.parseFromRaw(chunkRaw); - return c; - } - - protected final PngChunk createEmptyChunkKnown(final String id, final ImageInfo imgInfo) { - if (id.equals(ChunkHelper.IDAT)) - return new PngChunkIDAT(imgInfo); - if (id.equals(ChunkHelper.IHDR)) - return new PngChunkIHDR(imgInfo); - if (id.equals(ChunkHelper.PLTE)) - return new PngChunkPLTE(imgInfo); - if (id.equals(ChunkHelper.IEND)) - return new PngChunkIEND(imgInfo); - if (id.equals(ChunkHelper.tEXt)) - return new PngChunkTEXT(imgInfo); - if (id.equals(ChunkHelper.iTXt)) - return new PngChunkITXT(imgInfo); - if (id.equals(ChunkHelper.zTXt)) - return new PngChunkZTXT(imgInfo); - if (id.equals(ChunkHelper.bKGD)) - return new PngChunkBKGD(imgInfo); - if (id.equals(ChunkHelper.gAMA)) - return new PngChunkGAMA(imgInfo); - if (id.equals(ChunkHelper.pHYs)) - return new PngChunkPHYS(imgInfo); - if (id.equals(ChunkHelper.iCCP)) - return new PngChunkICCP(imgInfo); - if (id.equals(ChunkHelper.tIME)) - return new PngChunkTIME(imgInfo); - if (id.equals(ChunkHelper.tRNS)) - return new PngChunkTRNS(imgInfo); - if (id.equals(ChunkHelper.cHRM)) - return new PngChunkCHRM(imgInfo); - if (id.equals(ChunkHelper.sBIT)) - return new PngChunkSBIT(imgInfo); - if (id.equals(ChunkHelper.sRGB)) - return new PngChunkSRGB(imgInfo); - if (id.equals(ChunkHelper.hIST)) - return new PngChunkHIST(imgInfo); - if (id.equals(ChunkHelper.sPLT)) - return new PngChunkSPLT(imgInfo); - // apng - if (id.equals(PngChunkFDAT.ID)) - return new PngChunkFDAT(imgInfo); - if (id.equals(PngChunkACTL.ID)) - return new PngChunkACTL(imgInfo); - if (id.equals(PngChunkFCTL.ID)) - return new PngChunkFCTL(imgInfo); - return null; - } - - /** - * This is used as last resort factory method. - *

- * It creates a {@link PngChunkUNKNOWN} chunk. - */ - protected final PngChunk createEmptyChunkUnknown(final String id, final ImageInfo imgInfo) { - return new PngChunkUNKNOWN(id, imgInfo); - } - - /** - * Factory for chunks that are not in the original PNG standard. This can be - * overriden (but dont forget to call this - * also) - * - * @param id - * Chunk id , 4 letters - * @param imgInfo - * Usually not needed - * @return null if chunk id not recognized - */ - protected PngChunk createEmptyChunkExtended(final String id, final ImageInfo imgInfo) { - if (id.equals(PngChunkOFFS.ID)) - return new PngChunkOFFS(imgInfo); - if (id.equals(PngChunkSTER.ID)) - return new PngChunkSTER(imgInfo); - return null; // extend! - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkHelper.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkHelper.java deleted file mode 100644 index 90fa851..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkHelper.java +++ /dev/null @@ -1,291 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -// see http://www.libpng.org/pub/png/spec/1.2/PNG-Chunks.html -// http://www.w3.org/TR/PNG/#5Chunk-naming-conventions -// http://www.w3.org/TR/PNG/#table53 -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.io.UnsupportedEncodingException; -import java.util.ArrayList; -import java.util.Iterator; -import java.util.List; -import java.util.zip.DeflaterOutputStream; -import java.util.zip.InflaterInputStream; - -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * Helper methods and constants related to Chunk processing. - *

- * This should only be of interest to developers doing special chunk processing - * or extending the ChunkFactory - */ -public class ChunkHelper { - ChunkHelper() {} - - public static final String IHDR = "IHDR"; - public static final String PLTE = "PLTE"; - public static final String IDAT = "IDAT"; - public static final String IEND = "IEND"; - public static final String cHRM = "cHRM"; - public static final String gAMA = "gAMA"; - public static final String iCCP = "iCCP"; - public static final String sBIT = "sBIT"; - public static final String sRGB = "sRGB"; - public static final String bKGD = "bKGD"; - public static final String hIST = "hIST"; - public static final String tRNS = "tRNS"; - public static final String pHYs = "pHYs"; - public static final String sPLT = "sPLT"; - public static final String tIME = "tIME"; - public static final String iTXt = "iTXt"; - public static final String tEXt = "tEXt"; - public static final String zTXt = "zTXt"; - - public static final byte[] b_IHDR = ChunkHelper.toBytes(ChunkHelper.IHDR); - public static final byte[] b_PLTE = ChunkHelper.toBytes(ChunkHelper.PLTE); - public static final byte[] b_IDAT = ChunkHelper.toBytes(ChunkHelper.IDAT); - public static final byte[] b_IEND = ChunkHelper.toBytes(ChunkHelper.IEND); - - /* - * static auxiliary buffer. any method that uses this should synchronize against this - */ - private static byte[] tmpbuffer = new byte[4096]; - - /** - * Converts to bytes using Latin1 (ISO-8859-1) - */ - public static byte[] toBytes(final String x) { - try { - return x.getBytes(PngHelperInternal.charsetLatin1name); - } catch (final UnsupportedEncodingException e) { - throw new PngBadCharsetException(e); - } - } - - /** - * Converts to String using Latin1 (ISO-8859-1) - */ - public static String toString(final byte[] x) { - try { - return new String(x, PngHelperInternal.charsetLatin1name); - } catch (final UnsupportedEncodingException e) { - throw new PngBadCharsetException(e); - } - } - - /** - * Converts to String using Latin1 (ISO-8859-1) - */ - public static String toString(final byte[] x, final int offset, final int len) { - try { - return new String(x, offset, len, PngHelperInternal.charsetLatin1name); - } catch (final UnsupportedEncodingException e) { - throw new PngBadCharsetException(e); - } - } - - /** - * Converts to bytes using UTF-8 - */ - public static byte[] toBytesUTF8(final String x) { - try { - return x.getBytes(PngHelperInternal.charsetUTF8name); - } catch (final UnsupportedEncodingException e) { - throw new PngBadCharsetException(e); - } - } - - /** - * Converts to string using UTF-8 - */ - public static String toStringUTF8(final byte[] x) { - try { - return new String(x, PngHelperInternal.charsetUTF8name); - } catch (final UnsupportedEncodingException e) { - throw new PngBadCharsetException(e); - } - } - - /** - * Converts to string using UTF-8 - */ - public static String toStringUTF8(final byte[] x, final int offset, final int len) { - try { - return new String(x, offset, len, PngHelperInternal.charsetUTF8name); - } catch (final UnsupportedEncodingException e) { - throw new PngBadCharsetException(e); - } - } - - /** - * critical chunk : first letter is uppercase - */ - public static boolean isCritical(final String id) { - return Character.isUpperCase(id.charAt(0)); - } - - /** - * public chunk: second letter is uppercase - */ - public static boolean isPublic(final String id) { // - return Character.isUpperCase(id.charAt(1)); - } - - /** - * Safe to copy chunk: fourth letter is lower case - */ - public static boolean isSafeToCopy(final String id) { - return !Character.isUpperCase(id.charAt(3)); - } - - /** - * "Unknown" just means that our chunk factory (even when it has been - * augmented by client code) did not recognize its - * id - */ - public static boolean isUnknown(final PngChunk c) { - return c instanceof PngChunkUNKNOWN; - } - - /** - * Finds position of null byte in array - * - * @param b - * @return -1 if not found - */ - public static int posNullByte(final byte[] b) { - for (int i = 0; i < b.length; i++) - if (b[i] == 0) - return i; - return -1; - } - - /** - * Decides if a chunk should be loaded, according to a ChunkLoadBehaviour - * - * @param id - * @param behav - * @return true/false - */ - public static boolean shouldLoad(final String id, final ChunkLoadBehaviour behav) { - if (ChunkHelper.isCritical(id)) - return true; - switch (behav) { - case LOAD_CHUNK_ALWAYS: - return true; - case LOAD_CHUNK_IF_SAFE: - return ChunkHelper.isSafeToCopy(id); - case LOAD_CHUNK_NEVER: - return false; - case LOAD_CHUNK_MOST_IMPORTANT: - return id.equals(PngChunkTRNS.ID); - } - return false; // should not reach here - } - - public final static byte[] compressBytes(final byte[] ori, final boolean compress) { - return ChunkHelper.compressBytes(ori, 0, ori.length, compress); - } - - public static byte[] compressBytes(final byte[] ori, final int offset, final int len, final boolean compress) { - try { - final ByteArrayInputStream inb = new ByteArrayInputStream(ori, offset, len); - final InputStream in = compress ? inb : new InflaterInputStream(inb); - final ByteArrayOutputStream outb = new ByteArrayOutputStream(); - final OutputStream out = compress ? new DeflaterOutputStream(outb) : outb; - ChunkHelper.shovelInToOut(in, out); - in.close(); - out.close(); - return outb.toByteArray(); - } catch (final Exception e) { - throw new PngjException(e); - } - } - - /** - * Shovels all data from an input stream to an output stream. - */ - private static void shovelInToOut(final InputStream in, final OutputStream out) throws IOException { - synchronized (ChunkHelper.tmpbuffer) { - int len; - while ((len = in.read(ChunkHelper.tmpbuffer)) > 0) - out.write(ChunkHelper.tmpbuffer, 0, len); - } - } - - /** - * Returns only the chunks that "match" the predicate - * - * See also trimList() - */ - public static List filterList(final List target, final ChunkPredicate predicateKeep) { - final List result = new ArrayList<>(); - for (final PngChunk element : target) - if (predicateKeep.match(element)) - result.add(element); - return result; - } - - /** - * Remove (in place) the chunks that "match" the predicate - * - * See also filterList - */ - public static int trimList(final List target, final ChunkPredicate predicateRemove) { - final Iterator it = target.iterator(); - int cont = 0; - while (it.hasNext()) { - final PngChunk c = it.next(); - if (predicateRemove.match(c)) { - it.remove(); - cont++; - } - } - return cont; - } - - /** - * Adhoc criteria: two ancillary chunks are "equivalent" ("practically same - * type") if they have same id and (perhaps, - * if multiple are allowed) if the match also in some "internal key" (eg: - * key for string values, palette for sPLT, - * etc) - * - * When we use this method, we implicitly assume that we don't allow/expect - * two "equivalent" chunks in a single PNG - * - * Notice that the use of this is optional, and that the PNG standard - * actually allows text chunks that have same key - * - * @return true if "equivalent" - */ - public static final boolean equivalent(final PngChunk c1, final PngChunk c2) { - if (c1 == c2) - return true; - if (c1 == null || c2 == null || !c1.id.equals(c2.id)) - return false; - if (c1.crit) - return false; - // same id - if (c1.getClass() != c2.getClass()) - return false; // should not happen - if (!c2.allowsMultiple()) - return true; - if (c1 instanceof PngChunkTextVar) - return ((PngChunkTextVar) c1).getKey().equals(((PngChunkTextVar) c2).getKey()); - if (c1 instanceof PngChunkSPLT) - return ((PngChunkSPLT) c1).getPalName().equals(((PngChunkSPLT) c2).getPalName()); - // unknown chunks that allow multiple? consider they don't match - return false; - } - - public static boolean isText(final PngChunk c) { - return c instanceof PngChunkTextVar; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkLoadBehaviour.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkLoadBehaviour.java deleted file mode 100644 index 855b806..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkLoadBehaviour.java +++ /dev/null @@ -1,27 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -/** - * What to do with ancillary (non-critical) chunks when reading. - *

- * - */ -public enum ChunkLoadBehaviour { - /** - * All non-critical chunks are skipped - */ - LOAD_CHUNK_NEVER, - /** - * Load chunk if "safe to copy" - */ - LOAD_CHUNK_IF_SAFE, - /** - * Load only most important chunk: TRNS - */ - LOAD_CHUNK_MOST_IMPORTANT, - /** - * Load all chunks.
- * Notice that other restrictions might apply, see - * PngReader.skipChunkMaxSize PngReader.skipChunkIds - */ - LOAD_CHUNK_ALWAYS; -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkPredicate.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkPredicate.java deleted file mode 100644 index 2f9da63..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkPredicate.java +++ /dev/null @@ -1,14 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -/** - * Decides if another chunk "matches", according to some criterion - */ -public interface ChunkPredicate { - /** - * The other chunk matches with this one - * - * @param chunk - * @return true if match - */ - boolean match(PngChunk chunk); -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkRaw.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkRaw.java deleted file mode 100644 index 7e23476..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunkRaw.java +++ /dev/null @@ -1,175 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.io.ByteArrayInputStream; -import java.io.OutputStream; -import java.util.zip.CRC32; - -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjBadCrcException; -import ar.com.hjg.pngj.PngjException; -import ar.com.hjg.pngj.PngjOutputException; - -/** - * Raw (physical) chunk. - *

- * Short lived object, to be created while serialing/deserializing Do not reuse - * it for different chunks.
- * See http://www.libpng.org/pub/png/spec/1.2/PNG-Structure.html - */ -public class ChunkRaw { - /** - * The length counts only the data field, not itself, the chunk type code, - * or the CRC. Zero is a valid length. - * Although encoders and decoders should treat the length as unsigned, its - * value must not exceed 231-1 bytes. - */ - public final int len; - - /** - * A 4-byte chunk type code. uppercase and lowercase ASCII letters - */ - public final byte[] idbytes; - public final String id; - - /** - * The data bytes appropriate to the chunk type, if any. This field can be - * of zero length. Does not include crc. If - * it's null, it means that the data is ot available - */ - public byte[] data = null; - /** - * @see ChunkRaw#getOffset() - */ - private long offset = 0; - - /** - * A 4-byte CRC (Cyclic Redundancy Check) calculated on the preceding bytes - * in the chunk, including the chunk type - * code and chunk data fields, but not including the length field. - */ - public byte[] crcval = new byte[4]; - - private CRC32 crcengine; // lazily instantiated - - public ChunkRaw(final int len, final String id, final boolean alloc) { - this.len = len; - this.id = id; - idbytes = ChunkHelper.toBytes(id); - for (int i = 0; i < 4; i++) - if (idbytes[i] < 65 || idbytes[i] > 122 || idbytes[i] > 90 && idbytes[i] < 97) - throw new PngjException("Bad id chunk: must be ascii letters " + id); - if (alloc) - allocData(); - } - - public ChunkRaw(final int len, final byte[] idbytes, final boolean alloc) { - this(len, ChunkHelper.toString(idbytes), alloc); - } - - public void allocData() { // TODO: not public - if (data == null || data.length < len) - data = new byte[len]; - } - - /** - * this is called after setting data, before writing to os - */ - private void computeCrcForWriting() { - crcengine = new CRC32(); - crcengine.update(idbytes, 0, 4); - if (len > 0) - crcengine.update(data, 0, len); // - PngHelperInternal.writeInt4tobytes((int) crcengine.getValue(), crcval, 0); - } - - /** - * Computes the CRC and writes to the stream. If error, a - * PngjOutputException is thrown - * - * Note that this is only used for non idat chunks - */ - public void writeChunk(final OutputStream os) { - writeChunkHeader(os); - if (len > 0) { - if (data == null) - throw new PngjOutputException("cannot write chunk, raw chunk data is null [" + id + "]"); - PngHelperInternal.writeBytes(os, data, 0, len); - } - computeCrcForWriting(); - writeChunkCrc(os); - } - - public void writeChunkHeader(final OutputStream os) { - if (idbytes.length != 4) - throw new PngjOutputException("bad chunkid [" + id + "]"); - PngHelperInternal.writeInt4(os, len); - PngHelperInternal.writeBytes(os, idbytes); - } - - public void writeChunkCrc(final OutputStream os) { - PngHelperInternal.writeBytes(os, crcval, 0, 4); - } - - public void checkCrc() { - final int crcComputed = (int) crcengine.getValue(); - final int crcExpected = PngHelperInternal.readInt4fromBytes(crcval, 0); - if (crcComputed != crcExpected) - throw new PngjBadCrcException("chunk: " + toString() + " expected=" + crcExpected + " read=" + crcComputed); - } - - public void updateCrc(final byte[] buf, final int off, final int len) { - if (crcengine == null) - crcengine = new CRC32(); - crcengine.update(buf, off, len); - } - - ByteArrayInputStream getAsByteStream() { // only the data - return new ByteArrayInputStream(data); - } - - /** - * offset in the full PNG stream, in bytes. only informational, for read - * chunks (0=NA) - */ - public long getOffset() { - return offset; - } - - public void setOffset(final long offset) { - this.offset = offset; - } - - @Override - public String toString() { - return "chunkid=" + ChunkHelper.toString(idbytes) + " len=" + len; - } - - @Override - public int hashCode() { - final int prime = 31; - int result = 1; - result = prime * result + (id == null ? 0 : id.hashCode()); - result = prime * result + (int) (offset ^ offset >>> 32); - return result; - } - - @Override - public boolean equals(final Object obj) { - if (this == obj) - return true; - if (obj == null) - return false; - if (getClass() != obj.getClass()) - return false; - final ChunkRaw other = (ChunkRaw) obj; - if (id == null) { - if (other.id != null) - return false; - } else if (!id.equals(other.id)) - return false; - if (offset != other.offset) - return false; - return true; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunksList.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunksList.java deleted file mode 100644 index 50159b7..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunksList.java +++ /dev/null @@ -1,160 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.util.ArrayList; -import java.util.List; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjException; - -/** - * All chunks that form an image, read or to be written. - *

- * chunks include all chunks, but IDAT is a single pseudo chunk without data - **/ -public class ChunksList { - // ref: http://www.w3.org/TR/PNG/#table53 - public static final int CHUNK_GROUP_0_IDHR = 0; // required - single - public static final int CHUNK_GROUP_1_AFTERIDHR = 1; // optional - multiple - public static final int CHUNK_GROUP_2_PLTE = 2; // optional - single - public static final int CHUNK_GROUP_3_AFTERPLTE = 3; // optional - multple - public static final int CHUNK_GROUP_4_IDAT = 4; // required (single pseudo chunk) - public static final int CHUNK_GROUP_5_AFTERIDAT = 5; // optional - multple - public static final int CHUNK_GROUP_6_END = 6; // only 1 chunk - requried - - /** - * All chunks, read (or written) - * - * But IDAT is a single pseudo chunk without data - */ - List chunks = new ArrayList<>(); - // protected HashMap> chunksById = new HashMap>(); - // // does not include IDAT - - final ImageInfo imageInfo; // only required for writing - - boolean withPlte = false; - - public ChunksList(final ImageInfo imfinfo) { - imageInfo = imfinfo; - } - - /** - * WARNING: this does NOT return a copy, but the list itself. The called - * should not modify this directly! Don't use - * this to manipulate the chunks. - */ - public List getChunks() { - return chunks; - } - - protected static List getXById(final List list, final String id, final String innerid) { - if (innerid == null) - return ChunkHelper.filterList(list, c -> c.id.equals(id)); - else - return ChunkHelper.filterList(list, c -> { - if (!c.id.equals(id)) - return false; - if (c instanceof PngChunkTextVar && !((PngChunkTextVar) c).getKey().equals(innerid)) - return false; - if (c instanceof PngChunkSPLT && !((PngChunkSPLT) c).getPalName().equals(innerid)) - return false; - return true; - }); - } - - /** - * Adds chunk in next position. This is used onyl by the pngReader - */ - public void appendReadChunk(final PngChunk chunk, final int chunkGroup) { - chunk.setChunkGroup(chunkGroup); - chunks.add(chunk); - if (chunk.id.equals(PngChunkPLTE.ID)) - withPlte = true; - } - - /** - * All chunks with this ID - * - * @param id - * @return List, empty if none - */ - public List getById(final String id) { - return getById(id, null); - } - - /** - * If innerid!=null and the chunk is PngChunkTextVar or PngChunkSPLT, it's - * filtered by that id - * - * @param id - * @return innerid Only used for text and SPLT chunks - * @return List, empty if none - */ - public List getById(final String id, final String innerid) { - return ChunksList.getXById(chunks, id, innerid); - } - - /** - * Returns only one chunk - * - * @param id - * @return First chunk found, null if not found - */ - public PngChunk getById1(final String id) { - return getById1(id, false); - } - - /** - * Returns only one chunk or null if nothing found - does not include queued - *

- * If more than one chunk is found, then an exception is thrown - * (failifMultiple=true or chunk is single) or the last - * one is returned (failifMultiple=false) - **/ - public PngChunk getById1(final String id, final boolean failIfMultiple) { - return getById1(id, null, failIfMultiple); - } - - /** - * Returns only one chunk or null if nothing found - does not include queued - *

- * If more than one chunk (after filtering by inner id) is found, then an - * exception is thrown (failifMultiple=true or - * chunk is single) or the last one is returned (failifMultiple=false) - **/ - public PngChunk getById1(final String id, final String innerid, final boolean failIfMultiple) { - final List list = getById(id, innerid); - if (list.isEmpty()) - return null; - if (list.size() > 1 && (failIfMultiple || !list.get(0).allowsMultiple())) - throw new PngjException("unexpected multiple chunks id=" + id); - return list.get(list.size() - 1); - } - - /** - * Finds all chunks "equivalent" to this one - * - * @param c2 - * @return Empty if nothing found - */ - public List getEquivalent(final PngChunk c2) { - return ChunkHelper.filterList(chunks, c -> ChunkHelper.equivalent(c, c2)); - } - - @Override - public String toString() { - return "ChunkList: read: " + chunks.size(); - } - - /** - * for debugging - */ - public String toStringFull() { - final StringBuilder sb = new StringBuilder(toString()); - sb.append("\n Read:\n"); - for (final PngChunk chunk : chunks) - sb.append(chunk).append(" G=" + chunk.getChunkGroup() + "\n"); - return sb.toString(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunksListForWrite.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunksListForWrite.java deleted file mode 100644 index ec2d866..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/ChunksListForWrite.java +++ /dev/null @@ -1,185 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.io.OutputStream; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.Iterator; -import java.util.List; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjException; -import ar.com.hjg.pngj.PngjOutputException; - -public class ChunksListForWrite extends ChunksList { - - /** - * chunks not yet writen - does not include IHDR, IDAT, END, perhaps yes - * PLTE - */ - private final List queuedChunks = new ArrayList<>(); - - // redundant, just for eficciency - private final HashMap alreadyWrittenKeys = new HashMap<>(); - - public ChunksListForWrite(final ImageInfo imfinfo) { - super(imfinfo); - } - - /** - * Same as getById(), but looking in the queued chunks - */ - public List getQueuedById(final String id) { - return getQueuedById(id, null); - } - - /** - * Same as getById(), but looking in the queued chunks - */ - public List getQueuedById(final String id, final String innerid) { - return ChunksList.getXById(queuedChunks, id, innerid); - } - - /** - * Same as getById1(), but looking in the queued chunks - **/ - public PngChunk getQueuedById1(final String id, final String innerid, final boolean failIfMultiple) { - final List list = getQueuedById(id, innerid); - if (list.isEmpty()) - return null; - if (list.size() > 1 && (failIfMultiple || !list.get(0).allowsMultiple())) - throw new PngjException("unexpected multiple chunks id=" + id); - return list.get(list.size() - 1); - } - - /** - * Same as getById1(), but looking in the queued chunks - **/ - public PngChunk getQueuedById1(final String id, final boolean failIfMultiple) { - return getQueuedById1(id, null, failIfMultiple); - } - - /** - * Same as getById1(), but looking in the queued chunks - **/ - public PngChunk getQueuedById1(final String id) { - return getQueuedById1(id, false); - } - - /** - * Finds all chunks "equivalent" to this one - * - * @param c2 - * @return Empty if nothing found - */ - public List getQueuedEquivalent(final PngChunk c2) { - return ChunkHelper.filterList(queuedChunks, c -> ChunkHelper.equivalent(c, c2)); - } - - /** - * Remove Chunk: only from queued - * - * WARNING: this depends on c.equals() implementation, which is - * straightforward for SingleChunks. For MultipleChunks, - * it will normally check for reference equality! - */ - public boolean removeChunk(final PngChunk c) { - if (c == null) - return false; - return queuedChunks.remove(c); - } - - /** - * Adds chunk to queue - * - * If there - * - * @param c - */ - public boolean queue(final PngChunk c) { - queuedChunks.add(c); - return true; - } - - /** - * this should be called only for ancillary chunks and PLTE (groups 1 - 3 - - * 5) - **/ - private static boolean shouldWrite(final PngChunk c, final int currentGroup) { - if (currentGroup == ChunksList.CHUNK_GROUP_2_PLTE) - return c.id.equals(ChunkHelper.PLTE); - if (currentGroup % 2 == 0) - throw new PngjOutputException("bad chunk group?"); - int minChunkGroup, maxChunkGroup; - if (c.getOrderingConstraint().mustGoBeforePLTE()) - minChunkGroup = maxChunkGroup = ChunksList.CHUNK_GROUP_1_AFTERIDHR; - else if (c.getOrderingConstraint().mustGoBeforeIDAT()) { - maxChunkGroup = ChunksList.CHUNK_GROUP_3_AFTERPLTE; - minChunkGroup = c.getOrderingConstraint().mustGoAfterPLTE() ? ChunksList.CHUNK_GROUP_3_AFTERPLTE : ChunksList.CHUNK_GROUP_1_AFTERIDHR; - } else { - maxChunkGroup = ChunksList.CHUNK_GROUP_5_AFTERIDAT; - minChunkGroup = ChunksList.CHUNK_GROUP_1_AFTERIDHR; - } - - int preferred = maxChunkGroup; - if (c.hasPriority()) - preferred = minChunkGroup; - if (ChunkHelper.isUnknown(c) && c.getChunkGroup() > 0) - preferred = c.getChunkGroup(); - if (currentGroup == preferred) - return true; - if (currentGroup > preferred && currentGroup <= maxChunkGroup) - return true; - return false; - } - - public int writeChunks(final OutputStream os, final int currentGroup) { - int cont = 0; - final Iterator it = queuedChunks.iterator(); - while (it.hasNext()) { - final PngChunk c = it.next(); - if (!ChunksListForWrite.shouldWrite(c, currentGroup)) - continue; - if (ChunkHelper.isCritical(c.id) && !c.id.equals(ChunkHelper.PLTE)) - throw new PngjOutputException("bad chunk queued: " + c); - if (alreadyWrittenKeys.containsKey(c.id) && !c.allowsMultiple()) - throw new PngjOutputException("duplicated chunk does not allow multiple: " + c); - c.write(os); - chunks.add(c); - alreadyWrittenKeys.put(c.id, alreadyWrittenKeys.containsKey(c.id) ? alreadyWrittenKeys.get(c.id) + 1 : 1); - c.setChunkGroup(currentGroup); - it.remove(); - cont++; - } - return cont; - } - - /** - * warning: this is NOT a copy, do not modify - */ - public List getQueuedChunks() { - return queuedChunks; - } - - @Override - public String toString() { - return "ChunkList: written: " + getChunks().size() + " queue: " + queuedChunks.size(); - } - - /** - * for debugging - */ - @Override - public String toStringFull() { - final StringBuilder sb = new StringBuilder(toString()); - sb.append("\n Written:\n"); - for (final PngChunk chunk : getChunks()) - sb.append(chunk).append(" G=" + chunk.getChunkGroup() + "\n"); - if (!queuedChunks.isEmpty()) { - sb.append(" Queued:\n"); - for (final PngChunk chunk : queuedChunks) - sb.append(chunk).append("\n"); - - } - return sb.toString(); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngBadCharsetException.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngBadCharsetException.java deleted file mode 100644 index fe9df9e..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngBadCharsetException.java +++ /dev/null @@ -1,20 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.PngjException; - -public class PngBadCharsetException extends PngjException { - private static final long serialVersionUID = 1L; - - public PngBadCharsetException(final String message, final Throwable cause) { - super(message, cause); - } - - public PngBadCharsetException(final String message) { - super(message); - } - - public PngBadCharsetException(final Throwable cause) { - super(cause); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunk.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunk.java deleted file mode 100644 index 2ffb837..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunk.java +++ /dev/null @@ -1,227 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.io.OutputStream; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjExceptionInternal; - -/** - * Represents a instance of a PNG chunk. - *

- * See - * http://www - * .libpng.org/pub/png/spec/1.2/PNG-Chunks .html - *

- * Concrete classes should extend {@link PngChunkSingle} or - * {@link PngChunkMultiple} - *

- * Note that some methods/fields are type-specific (getOrderingConstraint(), - * allowsMultiple()),
- * some are 'almost' type-specific (id,crit,pub,safe; the exception is - * PngUKNOWN),
- * and the rest are instance-specific - */ -public abstract class PngChunk { - - /** - * Chunk-id: 4 letters - */ - public final String id; - /** - * Autocomputed at creation time - */ - public final boolean crit, pub, safe; - - protected final ImageInfo imgInfo; - - protected ChunkRaw raw; - - private boolean priority = false; // For writing. Queued chunks with high priority will be written - // as soon as - // possible - - protected int chunkGroup = -1; // chunk group where it was read or writen - - /** - * Possible ordering constraint for a PngChunk type -only relevant for - * ancillary chunks. Theoretically, there could be - * more general constraints, but these cover the constraints for standard - * chunks. - */ - public enum ChunkOrderingConstraint { - /** - * no ordering constraint - */ - NONE, - /** - * Must go before PLTE (and hence, also before IDAT) - */ - BEFORE_PLTE_AND_IDAT, - /** - * Must go after PLTE (if exists) but before IDAT - */ - AFTER_PLTE_BEFORE_IDAT, - /** - * Must go after PLTE (and it must exist) but before IDAT - */ - AFTER_PLTE_BEFORE_IDAT_PLTE_REQUIRED, - /** - * Must before IDAT (before or after PLTE) - */ - BEFORE_IDAT, - /** - * After IDAT (this restriction does not apply to the standard PNG - * chunks) - */ - AFTER_IDAT, - /** - * Does not apply - */ - NA; - - public boolean mustGoBeforePLTE() { - return this == BEFORE_PLTE_AND_IDAT; - } - - public boolean mustGoBeforeIDAT() { - return this == BEFORE_IDAT || this == BEFORE_PLTE_AND_IDAT || this == AFTER_PLTE_BEFORE_IDAT; - } - - /** - * after pallete, if exists - */ - public boolean mustGoAfterPLTE() { - return this == AFTER_PLTE_BEFORE_IDAT || this == AFTER_PLTE_BEFORE_IDAT_PLTE_REQUIRED; - } - - public boolean mustGoAfterIDAT() { - return this == AFTER_IDAT; - } - - public boolean isOk(final int currentChunkGroup, final boolean hasplte) { - if (this == NONE) - return true; - else if (this == BEFORE_IDAT) - return currentChunkGroup < ChunksList.CHUNK_GROUP_4_IDAT; - else if (this == BEFORE_PLTE_AND_IDAT) - return currentChunkGroup < ChunksList.CHUNK_GROUP_2_PLTE; - else if (this == AFTER_PLTE_BEFORE_IDAT) - return hasplte ? currentChunkGroup < ChunksList.CHUNK_GROUP_4_IDAT : currentChunkGroup < ChunksList.CHUNK_GROUP_4_IDAT && currentChunkGroup > ChunksList.CHUNK_GROUP_2_PLTE; - else if (this == AFTER_IDAT) - return currentChunkGroup > ChunksList.CHUNK_GROUP_4_IDAT; - return false; - } - } - - public PngChunk(final String id, final ImageInfo imgInfo) { - this.id = id; - this.imgInfo = imgInfo; - crit = ChunkHelper.isCritical(id); - pub = ChunkHelper.isPublic(id); - safe = ChunkHelper.isSafeToCopy(id); - } - - protected final ChunkRaw createEmptyChunk(final int len, final boolean alloc) { - final ChunkRaw c = new ChunkRaw(len, ChunkHelper.toBytes(id), alloc); - return c; - } - - /** - * In which "chunkGroup" (see {@link ChunksList}for definition) this chunks - * instance was read or written. - *

- * -1 if not read or written (eg, queued) - */ - final public int getChunkGroup() { - return chunkGroup; - } - - /** - * @see #getChunkGroup() - */ - final void setChunkGroup(final int chunkGroup) { - this.chunkGroup = chunkGroup; - } - - public boolean hasPriority() { - return priority; - } - - public void setPriority(final boolean priority) { - this.priority = priority; - } - - final void write(final OutputStream os) { - if (raw == null || raw.data == null) - raw = createRawChunk(); - if (raw == null) - throw new PngjExceptionInternal("null chunk ! creation failed for " + this); - raw.writeChunk(os); - } - - /** - * Creates the physical chunk. This is used when writing (serialization). - * Each particular chunk class implements its - * own logic. - * - * @return A newly allocated and filled raw chunk - */ - public abstract ChunkRaw createRawChunk(); - - /** - * Parses raw chunk and fill inside data. This is used when reading - * (deserialization). Each particular chunk class - * implements its own logic. - */ - protected abstract void parseFromRaw(ChunkRaw c); - - /** - * See {@link PngChunkMultiple} and {@link PngChunkSingle} - * - * @return true if PNG accepts multiple chunks of this class - */ - protected abstract boolean allowsMultiple(); - - public ChunkRaw getRaw() { - return raw; - } - - void setRaw(final ChunkRaw raw) { - this.raw = raw; - } - - /** - * @see ChunkRaw#len - */ - public int getLen() { - return raw != null ? raw.len : -1; - } - - /** - * @see ChunkRaw#getOffset() - */ - public long getOffset() { - return raw != null ? raw.getOffset() : -1; - } - - /** - * This signals that the raw chunk (serialized data) as invalid, so that - * it's regenerated on write. This should be - * called for the (infrequent) case of chunks that were copied from a - * PngReader and we want to manually modify it. - */ - public void invalidateRawData() { - raw = null; - } - - /** - * see {@link ChunkOrderingConstraint} - */ - public abstract ChunkOrderingConstraint getOrderingConstraint(); - - @Override - public String toString() { - return "chunk id= " + id + " (len=" + getLen() + " offset=" + getOffset() + ")"; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkACTL.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkACTL.java deleted file mode 100644 index 3d179f0..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkACTL.java +++ /dev/null @@ -1,57 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; - -/** - * acTL chunk. For APGN, not PGN standard - *

- * see - * https://wiki.mozilla.org/APNG_Specification#.60acTL.60:_The_Animation_Control_Chunk - *

- */ -public class PngChunkACTL extends PngChunkSingle { - public final static String ID = "acTL"; - private int numFrames; - private int numPlays; - - public PngChunkACTL(final ImageInfo info) { - super(PngChunkACTL.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = createEmptyChunk(8, true); - PngHelperInternal.writeInt4tobytes(numFrames, c.data, 0); - PngHelperInternal.writeInt4tobytes(numPlays, c.data, 4); - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - numFrames = PngHelperInternal.readInt4fromBytes(chunk.data, 0); - numPlays = PngHelperInternal.readInt4fromBytes(chunk.data, 4); - } - - public int getNumFrames() { - return numFrames; - } - - public void setNumFrames(final int numFrames) { - this.numFrames = numFrames; - } - - public int getNumPlays() { - return numPlays; - } - - public void setNumPlays(final int numPlays) { - this.numPlays = numPlays; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkBKGD.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkBKGD.java deleted file mode 100644 index 6486c18..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkBKGD.java +++ /dev/null @@ -1,112 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * bKGD Chunk. - *

- * see {@link http://www.w3.org/TR/PNG/#11bKGD} - *

- * This chunk structure depends on the image type - */ -public class PngChunkBKGD extends PngChunkSingle { - public final static String ID = ChunkHelper.bKGD; - // only one of these is meaningful - private int gray; - private int red, green, blue; - private int paletteIndex; - - public PngChunkBKGD(final ImageInfo info) { - super(ChunkHelper.bKGD, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.AFTER_PLTE_BEFORE_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - ChunkRaw c = null; - if (imgInfo.greyscale) { - c = createEmptyChunk(2, true); - PngHelperInternal.writeInt2tobytes(gray, c.data, 0); - } else if (imgInfo.indexed) { - c = createEmptyChunk(1, true); - c.data[0] = (byte) paletteIndex; - } else { - c = createEmptyChunk(6, true); - PngHelperInternal.writeInt2tobytes(red, c.data, 0); - PngHelperInternal.writeInt2tobytes(green, c.data, 0); - PngHelperInternal.writeInt2tobytes(blue, c.data, 0); - } - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - if (imgInfo.greyscale) - gray = PngHelperInternal.readInt2fromBytes(c.data, 0); - else if (imgInfo.indexed) - paletteIndex = c.data[0] & 0xff; - else { - red = PngHelperInternal.readInt2fromBytes(c.data, 0); - green = PngHelperInternal.readInt2fromBytes(c.data, 2); - blue = PngHelperInternal.readInt2fromBytes(c.data, 4); - } - } - - /** - * Set gray value (0-255 if bitdept=8) - * - * @param gray - */ - public void setGray(final int gray) { - if (!imgInfo.greyscale) - throw new PngjException("only gray images support this"); - this.gray = gray; - } - - public int getGray() { - if (!imgInfo.greyscale) - throw new PngjException("only gray images support this"); - return gray; - } - - /** - * Set pallette index - * - */ - public void setPaletteIndex(final int i) { - if (!imgInfo.indexed) - throw new PngjException("only indexed (pallete) images support this"); - paletteIndex = i; - } - - public int getPaletteIndex() { - if (!imgInfo.indexed) - throw new PngjException("only indexed (pallete) images support this"); - return paletteIndex; - } - - /** - * Set rgb values - * - */ - public void setRGB(final int r, final int g, final int b) { - if (imgInfo.greyscale || imgInfo.indexed) - throw new PngjException("only rgb or rgba images support this"); - red = r; - green = g; - blue = b; - } - - public int[] getRGB() { - if (imgInfo.greyscale || imgInfo.indexed) - throw new PngjException("only rgb or rgba images support this"); - return new int[] { red, green, blue }; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkCHRM.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkCHRM.java deleted file mode 100644 index 6086a7a..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkCHRM.java +++ /dev/null @@ -1,75 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * cHRM chunk. - *

- * see http://www.w3.org/TR/PNG/#11cHRM - */ -public class PngChunkCHRM extends PngChunkSingle { - public final static String ID = ChunkHelper.cHRM; - - // http://www.w3.org/TR/PNG/#11cHRM - private double whitex, whitey; - private double redx, redy; - private double greenx, greeny; - private double bluex, bluey; - - public PngChunkCHRM(final ImageInfo info) { - super(PngChunkCHRM.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.AFTER_PLTE_BEFORE_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - ChunkRaw c = null; - c = createEmptyChunk(32, true); - PngHelperInternal.writeInt4tobytes(PngHelperInternal.doubleToInt100000(whitex), c.data, 0); - PngHelperInternal.writeInt4tobytes(PngHelperInternal.doubleToInt100000(whitey), c.data, 4); - PngHelperInternal.writeInt4tobytes(PngHelperInternal.doubleToInt100000(redx), c.data, 8); - PngHelperInternal.writeInt4tobytes(PngHelperInternal.doubleToInt100000(redy), c.data, 12); - PngHelperInternal.writeInt4tobytes(PngHelperInternal.doubleToInt100000(greenx), c.data, 16); - PngHelperInternal.writeInt4tobytes(PngHelperInternal.doubleToInt100000(greeny), c.data, 20); - PngHelperInternal.writeInt4tobytes(PngHelperInternal.doubleToInt100000(bluex), c.data, 24); - PngHelperInternal.writeInt4tobytes(PngHelperInternal.doubleToInt100000(bluey), c.data, 28); - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - if (c.len != 32) - throw new PngjException("bad chunk " + c); - whitex = PngHelperInternal.intToDouble100000(PngHelperInternal.readInt4fromBytes(c.data, 0)); - whitey = PngHelperInternal.intToDouble100000(PngHelperInternal.readInt4fromBytes(c.data, 4)); - redx = PngHelperInternal.intToDouble100000(PngHelperInternal.readInt4fromBytes(c.data, 8)); - redy = PngHelperInternal.intToDouble100000(PngHelperInternal.readInt4fromBytes(c.data, 12)); - greenx = PngHelperInternal.intToDouble100000(PngHelperInternal.readInt4fromBytes(c.data, 16)); - greeny = PngHelperInternal.intToDouble100000(PngHelperInternal.readInt4fromBytes(c.data, 20)); - bluex = PngHelperInternal.intToDouble100000(PngHelperInternal.readInt4fromBytes(c.data, 24)); - bluey = PngHelperInternal.intToDouble100000(PngHelperInternal.readInt4fromBytes(c.data, 28)); - } - - public void setChromaticities(final double whitex, final double whitey, final double redx, final double redy, - final double greenx, final double greeny, final double bluex, final double bluey) { - this.whitex = whitex; - this.redx = redx; - this.greenx = greenx; - this.bluex = bluex; - this.whitey = whitey; - this.redy = redy; - this.greeny = greeny; - this.bluey = bluey; - } - - public double[] getChromaticities() { - return new double[] { whitex, whitey, redx, redy, greenx, greeny, bluex, bluey }; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkFCTL.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkFCTL.java deleted file mode 100644 index 4a8c8d1..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkFCTL.java +++ /dev/null @@ -1,158 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; - -/** - * fcTL chunk. For APGN, not PGN standard - *

- * see - * https://wiki.mozilla.org/APNG_Specification#.60fcTL.60:_The_Frame_Control_Chunk - *

- */ -public class PngChunkFCTL extends PngChunkMultiple { - public final static String ID = "fcTL"; - - public final static byte APNG_DISPOSE_OP_NONE = 0; - public final static byte APNG_DISPOSE_OP_BACKGROUND = 1; - public final static byte APNG_DISPOSE_OP_PREVIOUS = 2; - public final static byte APNG_BLEND_OP_SOURCE = 0; - public final static byte APNG_BLEND_OP_OVER = 1; - - private int seqNum; - private int width, height, xOff, yOff; - private int delayNum, delayDen; - private byte disposeOp, blendOp; - - public PngChunkFCTL(final ImageInfo info) { - super(PngChunkFCTL.ID, info); - } - - public ImageInfo getEquivImageInfo() { - return new ImageInfo(width, height, imgInfo.bitDepth, imgInfo.alpha, imgInfo.greyscale, imgInfo.indexed); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.NONE; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = createEmptyChunk(8, true); - int off = 0; - PngHelperInternal.writeInt4tobytes(seqNum, c.data, off); - off += 4; - PngHelperInternal.writeInt4tobytes(width, c.data, off); - off += 4; - PngHelperInternal.writeInt4tobytes(height, c.data, off); - off += 4; - PngHelperInternal.writeInt4tobytes(xOff, c.data, off); - off += 4; - PngHelperInternal.writeInt4tobytes(yOff, c.data, off); - off += 4; - PngHelperInternal.writeInt2tobytes(delayNum, c.data, off); - off += 2; - PngHelperInternal.writeInt2tobytes(delayDen, c.data, off); - off += 2; - c.data[off] = disposeOp; - off += 1; - c.data[off] = blendOp; - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - int off = 0; - seqNum = PngHelperInternal.readInt4fromBytes(chunk.data, off); - off += 4; - width = PngHelperInternal.readInt4fromBytes(chunk.data, off); - off += 4; - height = PngHelperInternal.readInt4fromBytes(chunk.data, off); - off += 4; - xOff = PngHelperInternal.readInt4fromBytes(chunk.data, off); - off += 4; - yOff = PngHelperInternal.readInt4fromBytes(chunk.data, off); - off += 4; - delayNum = PngHelperInternal.readInt2fromBytes(chunk.data, off); - off += 2; - delayDen = PngHelperInternal.readInt2fromBytes(chunk.data, off); - off += 2; - disposeOp = chunk.data[off]; - off += 1; - blendOp = chunk.data[off]; - } - - public int getSeqNum() { - return seqNum; - } - - public void setSeqNum(final int seqNum) { - this.seqNum = seqNum; - } - - public int getWidth() { - return width; - } - - public void setWidth(final int width) { - this.width = width; - } - - public int getHeight() { - return height; - } - - public void setHeight(final int height) { - this.height = height; - } - - public int getxOff() { - return xOff; - } - - public void setxOff(final int xOff) { - this.xOff = xOff; - } - - public int getyOff() { - return yOff; - } - - public void setyOff(final int yOff) { - this.yOff = yOff; - } - - public int getDelayNum() { - return delayNum; - } - - public void setDelayNum(final int delayNum) { - this.delayNum = delayNum; - } - - public int getDelayDen() { - return delayDen; - } - - public void setDelayDen(final int delayDen) { - this.delayDen = delayDen; - } - - public byte getDisposeOp() { - return disposeOp; - } - - public void setDisposeOp(final byte disposeOp) { - this.disposeOp = disposeOp; - } - - public byte getBlendOp() { - return blendOp; - } - - public void setBlendOp(final byte blendOp) { - this.blendOp = blendOp; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkFDAT.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkFDAT.java deleted file mode 100644 index 47449a0..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkFDAT.java +++ /dev/null @@ -1,72 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * fdAT chunk. For APGN, not PGN standard - *

- * see - * https://wiki.mozilla.org/APNG_Specification#.60fdAT.60:_The_Frame_Data_Chunk - *

- * This implementation does not support buffering, this should be not managed - * similar to a IDAT chunk - * - */ -public class PngChunkFDAT extends PngChunkMultiple { - public final static String ID = "fdAT"; - private int seqNum; - private byte[] buffer; // normally not allocated - if so, it's the raw data, so it includes the 4bytes seqNum - int datalen; // length of idat data, excluding seqNUm (= chunk.len-4) - - public PngChunkFDAT(final ImageInfo info) { - super(PngChunkFDAT.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.AFTER_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - if (buffer == null) - throw new PngjException("not buffered"); - final ChunkRaw c = createEmptyChunk(datalen + 4, false); - c.data = buffer; // shallow copy! - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - seqNum = PngHelperInternal.readInt4fromBytes(chunk.data, 0); - datalen = chunk.len - 4; - buffer = chunk.data; - } - - public int getSeqNum() { - return seqNum; - } - - public void setSeqNum(final int seqNum) { - this.seqNum = seqNum; - } - - public byte[] getBuffer() { - return buffer; - } - - public void setBuffer(final byte[] buffer) { - this.buffer = buffer; - } - - public int getDatalen() { - return datalen; - } - - public void setDatalen(final int datalen) { - this.datalen = datalen; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkGAMA.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkGAMA.java deleted file mode 100644 index 3b70654..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkGAMA.java +++ /dev/null @@ -1,51 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * gAMA chunk. - *

- * see http://www.w3.org/TR/PNG/#11gAMA - */ -public class PngChunkGAMA extends PngChunkSingle { - public final static String ID = ChunkHelper.gAMA; - - // http://www.w3.org/TR/PNG/#11gAMA - private double gamma; - - public PngChunkGAMA(final ImageInfo info) { - super(PngChunkGAMA.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_PLTE_AND_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = createEmptyChunk(4, true); - final int g = (int) (gamma * 100000 + 0.5); - PngHelperInternal.writeInt4tobytes(g, c.data, 0); - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - if (chunk.len != 4) - throw new PngjException("bad chunk " + chunk); - final int g = PngHelperInternal.readInt4fromBytes(chunk.data, 0); - gamma = g / 100000.0; - } - - public double getGamma() { - return gamma; - } - - public void setGamma(final double gamma) { - this.gamma = gamma; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkHIST.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkHIST.java deleted file mode 100644 index 7d84aed..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkHIST.java +++ /dev/null @@ -1,56 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * hIST chunk. - *

- * see http://www.w3.org/TR/PNG/#11hIST
- * only for palette images - */ -public class PngChunkHIST extends PngChunkSingle { - public final static String ID = ChunkHelper.hIST; - - private int[] hist = new int[0]; // should have same lenght as palette - - public PngChunkHIST(final ImageInfo info) { - super(PngChunkHIST.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.AFTER_PLTE_BEFORE_IDAT; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - if (!imgInfo.indexed) - throw new PngjException("only indexed images accept a HIST chunk"); - final int nentries = c.data.length / 2; - hist = new int[nentries]; - for (int i = 0; i < hist.length; i++) - hist[i] = PngHelperInternal.readInt2fromBytes(c.data, i * 2); - } - - @Override - public ChunkRaw createRawChunk() { - if (!imgInfo.indexed) - throw new PngjException("only indexed images accept a HIST chunk"); - ChunkRaw c = null; - c = createEmptyChunk(hist.length * 2, true); - for (int i = 0; i < hist.length; i++) - PngHelperInternal.writeInt2tobytes(hist[i], c.data, i * 2); - return c; - } - - public int[] getHist() { - return hist; - } - - public void setHist(final int[] hist) { - this.hist = hist; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkICCP.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkICCP.java deleted file mode 100644 index caa2de2..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkICCP.java +++ /dev/null @@ -1,76 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjException; - -/** - * iCCP chunk. - *

- * See {@link http://www.w3.org/TR/PNG/#11iCCP} - */ -public class PngChunkICCP extends PngChunkSingle { - public final static String ID = ChunkHelper.iCCP; - - // http://www.w3.org/TR/PNG/#11iCCP - private String profileName; - private byte[] compressedProfile; // copmression/decopmresion is done in getter/setter - - public PngChunkICCP(final ImageInfo info) { - super(PngChunkICCP.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_PLTE_AND_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = createEmptyChunk(profileName.length() + compressedProfile.length + 2, true); - System.arraycopy(ChunkHelper.toBytes(profileName), 0, c.data, 0, profileName.length()); - c.data[profileName.length()] = 0; - c.data[profileName.length() + 1] = 0; - System.arraycopy(compressedProfile, 0, c.data, profileName.length() + 2, compressedProfile.length); - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - final int pos0 = ChunkHelper.posNullByte(chunk.data); - profileName = ChunkHelper.toString(chunk.data, 0, pos0); - final int comp = chunk.data[pos0 + 1] & 0xff; - if (comp != 0) - throw new PngjException("bad compression for ChunkTypeICCP"); - final int compdatasize = chunk.data.length - (pos0 + 2); - compressedProfile = new byte[compdatasize]; - System.arraycopy(chunk.data, pos0 + 2, compressedProfile, 0, compdatasize); - } - - /** - * The profile should be uncompressed bytes - */ - public void setProfileNameAndContent(final String name, final byte[] profile) { - profileName = name; - compressedProfile = ChunkHelper.compressBytes(profile, true); - } - - public void setProfileNameAndContent(final String name, final String profile) { - setProfileNameAndContent(name, ChunkHelper.toBytes(profile)); - } - - public String getProfileName() { - return profileName; - } - - /** - * uncompressed - **/ - public byte[] getProfile() { - return ChunkHelper.compressBytes(compressedProfile, false); - } - - public String getProfileAsString() { - return ChunkHelper.toString(getProfile()); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIDAT.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIDAT.java deleted file mode 100644 index febd146..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIDAT.java +++ /dev/null @@ -1,35 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; - -/** - * IDAT chunk. - *

- * see http://www.w3.org/TR/PNG/#11IDAT - *

- * This is dummy placeholder - we write/read this chunk (actually several) by - * special code. - */ -public class PngChunkIDAT extends PngChunkMultiple { - public final static String ID = ChunkHelper.IDAT; - - // http://www.w3.org/TR/PNG/#11IDAT - public PngChunkIDAT(final ImageInfo i) { - super(PngChunkIDAT.ID, i); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.NA; - } - - @Override - public ChunkRaw createRawChunk() {// does nothing - return null; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { // does nothing - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIEND.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIEND.java deleted file mode 100644 index 01fb625..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIEND.java +++ /dev/null @@ -1,35 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; - -/** - * IEND chunk. - *

- * see http://www.w3.org/TR/PNG/#11IEND - */ -public class PngChunkIEND extends PngChunkSingle { - public final static String ID = ChunkHelper.IEND; - - // http://www.w3.org/TR/PNG/#11IEND - // this is a dummy placeholder - public PngChunkIEND(final ImageInfo info) { - super(PngChunkIEND.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.NA; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = new ChunkRaw(0, ChunkHelper.b_IEND, false); - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - // this is not used - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIHDR.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIHDR.java deleted file mode 100644 index ddcbd5e..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkIHDR.java +++ /dev/null @@ -1,184 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.io.ByteArrayInputStream; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; -import ar.com.hjg.pngj.PngjInputException; - -/** - * IHDR chunk. - *

- * see http://www.w3.org/TR/PNG/#11IHDR - *

- * This is a special critical Chunk. - */ -public class PngChunkIHDR extends PngChunkSingle { - public final static String ID = ChunkHelper.IHDR; - - private int cols; - private int rows; - private int bitspc; - private int colormodel; - private int compmeth; - private int filmeth; - private int interlaced; - - // http://www.w3.org/TR/PNG/#11IHDR - // - public PngChunkIHDR(final ImageInfo info) { // argument is normally null here, if not null is used to fill the fields - super(PngChunkIHDR.ID, info); - if (info != null) - fillFromInfo(info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.NA; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = new ChunkRaw(13, ChunkHelper.b_IHDR, true); - int offset = 0; - PngHelperInternal.writeInt4tobytes(cols, c.data, offset); - offset += 4; - PngHelperInternal.writeInt4tobytes(rows, c.data, offset); - offset += 4; - c.data[offset++] = (byte) bitspc; - c.data[offset++] = (byte) colormodel; - c.data[offset++] = (byte) compmeth; - c.data[offset++] = (byte) filmeth; - c.data[offset++] = (byte) interlaced; - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - if (c.len != 13) - throw new PngjException("Bad IDHR len " + c.len); - final ByteArrayInputStream st = c.getAsByteStream(); - cols = PngHelperInternal.readInt4(st); - rows = PngHelperInternal.readInt4(st); - // bit depth: number of bits per channel - bitspc = PngHelperInternal.readByte(st); - colormodel = PngHelperInternal.readByte(st); - compmeth = PngHelperInternal.readByte(st); - filmeth = PngHelperInternal.readByte(st); - interlaced = PngHelperInternal.readByte(st); - } - - public int getCols() { - return cols; - } - - public void setCols(final int cols) { - this.cols = cols; - } - - public int getRows() { - return rows; - } - - public void setRows(final int rows) { - this.rows = rows; - } - - public int getBitspc() { - return bitspc; - } - - public void setBitspc(final int bitspc) { - this.bitspc = bitspc; - } - - public int getColormodel() { - return colormodel; - } - - public void setColormodel(final int colormodel) { - this.colormodel = colormodel; - } - - public int getCompmeth() { - return compmeth; - } - - public void setCompmeth(final int compmeth) { - this.compmeth = compmeth; - } - - public int getFilmeth() { - return filmeth; - } - - public void setFilmeth(final int filmeth) { - this.filmeth = filmeth; - } - - public int getInterlaced() { - return interlaced; - } - - public void setInterlaced(final int interlaced) { - this.interlaced = interlaced; - } - - public boolean isInterlaced() { - return getInterlaced() == 1; - } - - public void fillFromInfo(final ImageInfo info) { - setCols(imgInfo.cols); - setRows(imgInfo.rows); - setBitspc(imgInfo.bitDepth); - int colormodel = 0; - if (imgInfo.alpha) - colormodel += 0x04; - if (imgInfo.indexed) - colormodel += 0x01; - if (!imgInfo.greyscale) - colormodel += 0x02; - setColormodel(colormodel); - setCompmeth(0); // compression method 0=deflate - setFilmeth(0); // filter method (0) - setInterlaced(0); // we never interlace - } - - /** throws PngInputException if unexpected values */ - public ImageInfo createImageInfo() { - check(); - final boolean alpha = (getColormodel() & 0x04) != 0; - final boolean palette = (getColormodel() & 0x01) != 0; - final boolean grayscale = getColormodel() == 0 || getColormodel() == 4; - // creates ImgInfo and imgLine, and allocates buffers - return new ImageInfo(getCols(), getRows(), getBitspc(), alpha, grayscale, palette); - } - - public void check() { - if (cols < 1 || rows < 1 || compmeth != 0 || filmeth != 0) - throw new PngjInputException("bad IHDR: col/row/compmethod/filmethod invalid"); - if (bitspc != 1 && bitspc != 2 && bitspc != 4 && bitspc != 8 && bitspc != 16) - throw new PngjInputException("bad IHDR: bitdepth invalid"); - if (interlaced < 0 || interlaced > 1) - throw new PngjInputException("bad IHDR: interlace invalid"); - switch (colormodel) { - case 0: - break; - case 3: - if (bitspc == 16) - throw new PngjInputException("bad IHDR: bitdepth invalid"); - break; - case 2: - case 4: - case 6: - if (bitspc != 8 && bitspc != 16) - throw new PngjInputException("bad IHDR: bitdepth invalid"); - break; - default: - throw new PngjInputException("bad IHDR: invalid colormodel"); - } - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkITXT.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkITXT.java deleted file mode 100644 index d9d1bb8..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkITXT.java +++ /dev/null @@ -1,108 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjException; - -/** - * iTXt chunk. - *

- * see http://www.w3.org/TR/PNG/#11iTXt - */ -public class PngChunkITXT extends PngChunkTextVar { - public final static String ID = ChunkHelper.iTXt; - - private boolean compressed = false; - private String langTag = ""; - private String translatedTag = ""; - - // http://www.w3.org/TR/PNG/#11iTXt - public PngChunkITXT(final ImageInfo info) { - super(PngChunkITXT.ID, info); - } - - @Override - public ChunkRaw createRawChunk() { - if (key == null || key.trim().length() == 0) - throw new PngjException("Text chunk key must be non empty"); - try { - final ByteArrayOutputStream ba = new ByteArrayOutputStream(); - ba.write(ChunkHelper.toBytes(key)); - ba.write(0); // separator - ba.write(compressed ? 1 : 0); - ba.write(0); // compression method (always 0) - ba.write(ChunkHelper.toBytes(langTag)); - ba.write(0); // separator - ba.write(ChunkHelper.toBytesUTF8(translatedTag)); - ba.write(0); // separator - byte[] textbytes = ChunkHelper.toBytesUTF8(val); - if (compressed) - textbytes = ChunkHelper.compressBytes(textbytes, true); - ba.write(textbytes); - final byte[] b = ba.toByteArray(); - final ChunkRaw chunk = createEmptyChunk(b.length, false); - chunk.data = b; - return chunk; - } catch (final IOException e) { - throw new PngjException(e); - } - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - int nullsFound = 0; - final int[] nullsIdx = new int[3]; - for (int i = 0; i < c.data.length; i++) { - if (c.data[i] != 0) - continue; - nullsIdx[nullsFound] = i; - nullsFound++; - if (nullsFound == 1) - i += 2; - if (nullsFound == 3) - break; - } - if (nullsFound != 3) - throw new PngjException("Bad formed PngChunkITXT chunk"); - key = ChunkHelper.toString(c.data, 0, nullsIdx[0]); - int i = nullsIdx[0] + 1; - compressed = c.data[i] == 0 ? false : true; - i++; - if (compressed && c.data[i] != 0) - throw new PngjException("Bad formed PngChunkITXT chunk - bad compression method "); - langTag = ChunkHelper.toString(c.data, i, nullsIdx[1] - i); - translatedTag = ChunkHelper.toStringUTF8(c.data, nullsIdx[1] + 1, nullsIdx[2] - nullsIdx[1] - 1); - i = nullsIdx[2] + 1; - if (compressed) { - final byte[] bytes = ChunkHelper.compressBytes(c.data, i, c.data.length - i, false); - val = ChunkHelper.toStringUTF8(bytes); - } else - val = ChunkHelper.toStringUTF8(c.data, i, c.data.length - i); - } - - public boolean isCompressed() { - return compressed; - } - - public void setCompressed(final boolean compressed) { - this.compressed = compressed; - } - - public String getLangtag() { - return langTag; - } - - public void setLangtag(final String langtag) { - langTag = langtag; - } - - public String getTranslatedTag() { - return translatedTag; - } - - public void setTranslatedTag(final String translatedTag) { - this.translatedTag = translatedTag; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkMultiple.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkMultiple.java deleted file mode 100644 index 0f822d2..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkMultiple.java +++ /dev/null @@ -1,28 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; - -/** - * PNG chunk type (abstract) that allows multiple instances in same image. - */ -public abstract class PngChunkMultiple extends PngChunk { - - protected PngChunkMultiple(final String id, final ImageInfo imgInfo) { - super(id, imgInfo); - } - - @Override - public final boolean allowsMultiple() { - return true; - } - - /** - * NOTE: this chunk uses the default Object's equals() hashCode() - * implementation. - * - * This is the right thing to do, normally. - * - * This is important, eg see ChunkList.removeFromList() - */ - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkOFFS.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkOFFS.java deleted file mode 100644 index 2f762a6..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkOFFS.java +++ /dev/null @@ -1,81 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * oFFs chunk. - *

- * see http://www.libpng.org/pub/png/spec/register/pngext-1.3.0-pdg.html#C.oFFs - */ -public class PngChunkOFFS extends PngChunkSingle { - public final static String ID = "oFFs"; - - // http://www.libpng.org/pub/png/spec/register/pngext-1.3.0-pdg.html#C.oFFs - private long posX; - private long posY; - private int units; // 0: pixel 1:micrometer - - public PngChunkOFFS(final ImageInfo info) { - super(PngChunkOFFS.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = createEmptyChunk(9, true); - PngHelperInternal.writeInt4tobytes((int) posX, c.data, 0); - PngHelperInternal.writeInt4tobytes((int) posY, c.data, 4); - c.data[8] = (byte) units; - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - if (chunk.len != 9) - throw new PngjException("bad chunk length " + chunk); - posX = PngHelperInternal.readInt4fromBytes(chunk.data, 0); - if (posX < 0) - posX += 0x100000000L; - posY = PngHelperInternal.readInt4fromBytes(chunk.data, 4); - if (posY < 0) - posY += 0x100000000L; - units = PngHelperInternal.readInt1fromByte(chunk.data, 8); - } - - /** - * 0: pixel, 1:micrometer - */ - public int getUnits() { - return units; - } - - /** - * 0: pixel, 1:micrometer - */ - public void setUnits(final int units) { - this.units = units; - } - - public long getPosX() { - return posX; - } - - public void setPosX(final long posX) { - this.posX = posX; - } - - public long getPosY() { - return posY; - } - - public void setPosY(final long posY) { - this.posY = posY; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkPHYS.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkPHYS.java deleted file mode 100644 index acce8ed..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkPHYS.java +++ /dev/null @@ -1,107 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * pHYs chunk. - *

- * see http://www.w3.org/TR/PNG/#11pHYs - */ -public class PngChunkPHYS extends PngChunkSingle { - public final static String ID = ChunkHelper.pHYs; - - // http://www.w3.org/TR/PNG/#11pHYs - private long pixelsxUnitX; - private long pixelsxUnitY; - private int units; // 0: unknown 1:metre - - public PngChunkPHYS(final ImageInfo info) { - super(PngChunkPHYS.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = createEmptyChunk(9, true); - PngHelperInternal.writeInt4tobytes((int) pixelsxUnitX, c.data, 0); - PngHelperInternal.writeInt4tobytes((int) pixelsxUnitY, c.data, 4); - c.data[8] = (byte) units; - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - if (chunk.len != 9) - throw new PngjException("bad chunk length " + chunk); - pixelsxUnitX = PngHelperInternal.readInt4fromBytes(chunk.data, 0); - if (pixelsxUnitX < 0) - pixelsxUnitX += 0x100000000L; - pixelsxUnitY = PngHelperInternal.readInt4fromBytes(chunk.data, 4); - if (pixelsxUnitY < 0) - pixelsxUnitY += 0x100000000L; - units = PngHelperInternal.readInt1fromByte(chunk.data, 8); - } - - public long getPixelsxUnitX() { - return pixelsxUnitX; - } - - public void setPixelsxUnitX(final long pixelsxUnitX) { - this.pixelsxUnitX = pixelsxUnitX; - } - - public long getPixelsxUnitY() { - return pixelsxUnitY; - } - - public void setPixelsxUnitY(final long pixelsxUnitY) { - this.pixelsxUnitY = pixelsxUnitY; - } - - public int getUnits() { - return units; - } - - public void setUnits(final int units) { - this.units = units; - } - - // special getters / setters - - /** - * returns -1 if the physicial unit is unknown, or X-Y are not equal - */ - public double getAsDpi() { - if (units != 1 || pixelsxUnitX != pixelsxUnitY) - return -1; - return pixelsxUnitX * 0.0254; - } - - /** - * returns -1 if the physicial unit is unknown - */ - public double[] getAsDpi2() { - if (units != 1) - return new double[] { -1, -1 }; - return new double[] { pixelsxUnitX * 0.0254, pixelsxUnitY * 0.0254 }; - } - - public void setAsDpi(final double dpi) { - units = 1; - pixelsxUnitX = (long) (dpi / 0.0254 + 0.5); - pixelsxUnitY = pixelsxUnitX; - } - - public void setAsDpi2(final double dpix, final double dpiy) { - units = 1; - pixelsxUnitX = (long) (dpix / 0.0254 + 0.5); - pixelsxUnitY = (long) (dpiy / 0.0254 + 0.5); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkPLTE.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkPLTE.java deleted file mode 100644 index a0cfe73..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkPLTE.java +++ /dev/null @@ -1,95 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjException; - -/** - * PLTE chunk. - *

- * see http://www.w3.org/TR/PNG/#11PLTE - *

- * Critical chunk - */ -public class PngChunkPLTE extends PngChunkSingle { - public final static String ID = ChunkHelper.PLTE; - - // http://www.w3.org/TR/PNG/#11PLTE - private int nentries = 0; - /** - * RGB8 packed in one integer - */ - private int[] entries; - - public PngChunkPLTE(final ImageInfo info) { - super(PngChunkPLTE.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.NA; - } - - @Override - public ChunkRaw createRawChunk() { - final int len = 3 * nentries; - final int[] rgb = new int[3]; - final ChunkRaw c = createEmptyChunk(len, true); - for (int n = 0, i = 0; n < nentries; n++) { - getEntryRgb(n, rgb); - c.data[i++] = (byte) rgb[0]; - c.data[i++] = (byte) rgb[1]; - c.data[i++] = (byte) rgb[2]; - } - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - setNentries(chunk.len / 3); - for (int n = 0, i = 0; n < nentries; n++) - setEntry(n, chunk.data[i++] & 0xff, chunk.data[i++] & 0xff, chunk.data[i++] & 0xff); - } - - public void setNentries(final int n) { - nentries = n; - if (nentries < 1 || nentries > 256) - throw new PngjException("invalid pallette - nentries=" + nentries); - if (entries == null || entries.length != nentries) - entries = new int[nentries]; - } - - public int getNentries() { - return nentries; - } - - public void setEntry(final int n, final int r, final int g, final int b) { - entries[n] = r << 16 | g << 8 | b; - } - - public int getEntry(final int n) { - return entries[n]; - } - - public void getEntryRgb(final int n, final int[] rgb) { - getEntryRgb(n, rgb, 0); - } - - public void getEntryRgb(final int n, final int[] rgb, final int offset) { - final int v = entries[n]; - rgb[offset + 0] = (v & 0xff0000) >> 16; - rgb[offset + 1] = (v & 0xff00) >> 8; - rgb[offset + 2] = v & 0xff; - } - - public int minBitDepth() { - if (nentries <= 2) - return 1; - else if (nentries <= 4) - return 2; - else if (nentries <= 16) - return 4; - else - return 8; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSBIT.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSBIT.java deleted file mode 100644 index f782b0e..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSBIT.java +++ /dev/null @@ -1,114 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * sBIT chunk. - *

- * see http://www.w3.org/TR/PNG/#11sBIT - *

- * this chunk structure depends on the image type - */ -public class PngChunkSBIT extends PngChunkSingle { - public final static String ID = ChunkHelper.sBIT; - // http://www.w3.org/TR/PNG/#11sBIT - - // significant bits - private int graysb, alphasb; - private int redsb, greensb, bluesb; - - public PngChunkSBIT(final ImageInfo info) { - super(PngChunkSBIT.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_PLTE_AND_IDAT; - } - - private int getCLen() { - int len = imgInfo.greyscale ? 1 : 3; - if (imgInfo.alpha) - len += 1; - return len; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - if (c.len != getCLen()) - throw new PngjException("bad chunk length " + c); - if (imgInfo.greyscale) { - graysb = PngHelperInternal.readInt1fromByte(c.data, 0); - if (imgInfo.alpha) - alphasb = PngHelperInternal.readInt1fromByte(c.data, 1); - } else { - redsb = PngHelperInternal.readInt1fromByte(c.data, 0); - greensb = PngHelperInternal.readInt1fromByte(c.data, 1); - bluesb = PngHelperInternal.readInt1fromByte(c.data, 2); - if (imgInfo.alpha) - alphasb = PngHelperInternal.readInt1fromByte(c.data, 3); - } - } - - @Override - public ChunkRaw createRawChunk() { - ChunkRaw c = null; - c = createEmptyChunk(getCLen(), true); - if (imgInfo.greyscale) { - c.data[0] = (byte) graysb; - if (imgInfo.alpha) - c.data[1] = (byte) alphasb; - } else { - c.data[0] = (byte) redsb; - c.data[1] = (byte) greensb; - c.data[2] = (byte) bluesb; - if (imgInfo.alpha) - c.data[3] = (byte) alphasb; - } - return c; - } - - public void setGraysb(final int gray) { - if (!imgInfo.greyscale) - throw new PngjException("only greyscale images support this"); - graysb = gray; - } - - public int getGraysb() { - if (!imgInfo.greyscale) - throw new PngjException("only greyscale images support this"); - return graysb; - } - - public void setAlphasb(final int a) { - if (!imgInfo.alpha) - throw new PngjException("only images with alpha support this"); - alphasb = a; - } - - public int getAlphasb() { - if (!imgInfo.alpha) - throw new PngjException("only images with alpha support this"); - return alphasb; - } - - /** - * Set rgb values - * - */ - public void setRGB(final int r, final int g, final int b) { - if (imgInfo.greyscale || imgInfo.indexed) - throw new PngjException("only rgb or rgba images support this"); - redsb = r; - greensb = g; - bluesb = b; - } - - public int[] getRGB() { - if (imgInfo.greyscale || imgInfo.indexed) - throw new PngjException("only rgb or rgba images support this"); - return new int[] { redsb, greensb, bluesb }; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSPLT.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSPLT.java deleted file mode 100644 index 423b41f..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSPLT.java +++ /dev/null @@ -1,129 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * sPLT chunk. - *

- * see http://www.w3.org/TR/PNG/#11sPLT - */ -public class PngChunkSPLT extends PngChunkMultiple { - public final static String ID = ChunkHelper.sPLT; - - // http://www.w3.org/TR/PNG/#11sPLT - - private String palName; - private int sampledepth; // 8/16 - private int[] palette; // 5 elements per entry - - public PngChunkSPLT(final ImageInfo info) { - super(PngChunkSPLT.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - try { - final ByteArrayOutputStream ba = new ByteArrayOutputStream(); - ba.write(ChunkHelper.toBytes(palName)); - ba.write(0); // separator - ba.write((byte) sampledepth); - final int nentries = getNentries(); - for (int n = 0; n < nentries; n++) { - for (int i = 0; i < 4; i++) - if (sampledepth == 8) - PngHelperInternal.writeByte(ba, (byte) palette[n * 5 + i]); - else - PngHelperInternal.writeInt2(ba, palette[n * 5 + i]); - PngHelperInternal.writeInt2(ba, palette[n * 5 + 4]); - } - final byte[] b = ba.toByteArray(); - final ChunkRaw chunk = createEmptyChunk(b.length, false); - chunk.data = b; - return chunk; - } catch (final IOException e) { - throw new PngjException(e); - } - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - int t = -1; - for (int i = 0; i < c.data.length; i++) - if (c.data[i] == 0) { - t = i; - break; - } - if (t <= 0 || t > c.data.length - 2) - throw new PngjException("bad sPLT chunk: no separator found"); - palName = ChunkHelper.toString(c.data, 0, t); - sampledepth = PngHelperInternal.readInt1fromByte(c.data, t + 1); - t += 2; - final int nentries = (c.data.length - t) / (sampledepth == 8 ? 6 : 10); - palette = new int[nentries * 5]; - int r, g, b, a, f, ne; - ne = 0; - for (int i = 0; i < nentries; i++) { - if (sampledepth == 8) { - r = PngHelperInternal.readInt1fromByte(c.data, t++); - g = PngHelperInternal.readInt1fromByte(c.data, t++); - b = PngHelperInternal.readInt1fromByte(c.data, t++); - a = PngHelperInternal.readInt1fromByte(c.data, t++); - } else { - r = PngHelperInternal.readInt2fromBytes(c.data, t); - t += 2; - g = PngHelperInternal.readInt2fromBytes(c.data, t); - t += 2; - b = PngHelperInternal.readInt2fromBytes(c.data, t); - t += 2; - a = PngHelperInternal.readInt2fromBytes(c.data, t); - t += 2; - } - f = PngHelperInternal.readInt2fromBytes(c.data, t); - t += 2; - palette[ne++] = r; - palette[ne++] = g; - palette[ne++] = b; - palette[ne++] = a; - palette[ne++] = f; - } - } - - public int getNentries() { - return palette.length / 5; - } - - public String getPalName() { - return palName; - } - - public void setPalName(final String palName) { - this.palName = palName; - } - - public int getSampledepth() { - return sampledepth; - } - - public void setSampledepth(final int sampledepth) { - this.sampledepth = sampledepth; - } - - public int[] getPalette() { - return palette; - } - - public void setPalette(final int[] palette) { - this.palette = palette; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSRGB.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSRGB.java deleted file mode 100644 index de261e7..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSRGB.java +++ /dev/null @@ -1,55 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * sRGB chunk. - *

- * see http://www.w3.org/TR/PNG/#11sRGB - */ -public class PngChunkSRGB extends PngChunkSingle { - public final static String ID = ChunkHelper.sRGB; - - // http://www.w3.org/TR/PNG/#11sRGB - - public static final int RENDER_INTENT_Perceptual = 0; - public static final int RENDER_INTENT_Relative_colorimetric = 1; - public static final int RENDER_INTENT_Saturation = 2; - public static final int RENDER_INTENT_Absolute_colorimetric = 3; - - private int intent; - - public PngChunkSRGB(final ImageInfo info) { - super(PngChunkSRGB.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_PLTE_AND_IDAT; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - if (c.len != 1) - throw new PngjException("bad chunk length " + c); - intent = PngHelperInternal.readInt1fromByte(c.data, 0); - } - - @Override - public ChunkRaw createRawChunk() { - ChunkRaw c = null; - c = createEmptyChunk(1, true); - c.data[0] = (byte) intent; - return c; - } - - public int getIntent() { - return intent; - } - - public void setIntent(final int intent) { - this.intent = intent; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSTER.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSTER.java deleted file mode 100644 index fe13576..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSTER.java +++ /dev/null @@ -1,54 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjException; - -/** - * sTER chunk. - *

- * see http://www.libpng.org/pub/png/spec/register/pngext-1.3.0-pdg.html#C.sTER - */ -public class PngChunkSTER extends PngChunkSingle { - public final static String ID = "sTER"; - - // http://www.libpng.org/pub/png/spec/register/pngext-1.3.0-pdg.html#C.sTER - private byte mode; // 0: cross-fuse layout 1: diverging-fuse layout - - public PngChunkSTER(final ImageInfo info) { - super(PngChunkSTER.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.BEFORE_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = createEmptyChunk(1, true); - c.data[0] = mode; - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - if (chunk.len != 1) - throw new PngjException("bad chunk length " + chunk); - mode = chunk.data[0]; - } - - /** - * 0: cross-fuse layout 1: diverging-fuse layout - */ - public byte getMode() { - return mode; - } - - /** - * 0: cross-fuse layout 1: diverging-fuse layout - */ - public void setMode(final byte mode) { - this.mode = mode; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSingle.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSingle.java deleted file mode 100644 index a98df4e..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkSingle.java +++ /dev/null @@ -1,45 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; - -/** - * PNG chunk type (abstract) that does not allow multiple instances in same - * image. - */ -public abstract class PngChunkSingle extends PngChunk { - - protected PngChunkSingle(final String id, final ImageInfo imgInfo) { - super(id, imgInfo); - } - - @Override - public final boolean allowsMultiple() { - return false; - } - - @Override - public int hashCode() { - final int prime = 31; - int result = 1; - result = prime * result + (id == null ? 0 : id.hashCode()); - return result; - } - - @Override - public boolean equals(final Object obj) { - if (this == obj) - return true; - if (obj == null) - return false; - if (getClass() != obj.getClass()) - return false; - final PngChunkSingle other = (PngChunkSingle) obj; - if (id == null) { - if (other.id != null) - return false; - } else if (!id.equals(other.id)) - return false; - return true; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTEXT.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTEXT.java deleted file mode 100644 index efaa62d..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTEXT.java +++ /dev/null @@ -1,44 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjException; - -/** - * tEXt chunk. - *

- * see http://www.w3.org/TR/PNG/#11tEXt - */ -public class PngChunkTEXT extends PngChunkTextVar { - public final static String ID = ChunkHelper.tEXt; - - public PngChunkTEXT(final ImageInfo info) { - super(PngChunkTEXT.ID, info); - } - - public PngChunkTEXT(final ImageInfo info, final String key, final String val) { - super(PngChunkTEXT.ID, info); - setKeyVal(key, val); - } - - @Override - public ChunkRaw createRawChunk() { - if (key == null || key.trim().length() == 0) - throw new PngjException("Text chunk key must be non empty"); - final byte[] b = ChunkHelper.toBytes(key + "\0" + val); - final ChunkRaw chunk = createEmptyChunk(b.length, false); - chunk.data = b; - return chunk; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - int i; - for (i = 0; i < c.data.length; i++) - if (c.data[i] == 0) - break; - key = ChunkHelper.toString(c.data, 0, i); - i++; - val = i < c.data.length ? ChunkHelper.toString(c.data, i, c.data.length - i) : ""; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTIME.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTIME.java deleted file mode 100644 index 37fab91..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTIME.java +++ /dev/null @@ -1,83 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.util.Calendar; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * tIME chunk. - *

- * see http://www.w3.org/TR/PNG/#11tIME - */ -public class PngChunkTIME extends PngChunkSingle { - public final static String ID = ChunkHelper.tIME; - - // http://www.w3.org/TR/PNG/#11tIME - private int year, mon, day, hour, min, sec; - - public PngChunkTIME(final ImageInfo info) { - super(PngChunkTIME.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.NONE; - } - - @Override - public ChunkRaw createRawChunk() { - final ChunkRaw c = createEmptyChunk(7, true); - PngHelperInternal.writeInt2tobytes(year, c.data, 0); - c.data[2] = (byte) mon; - c.data[3] = (byte) day; - c.data[4] = (byte) hour; - c.data[5] = (byte) min; - c.data[6] = (byte) sec; - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw chunk) { - if (chunk.len != 7) - throw new PngjException("bad chunk " + chunk); - year = PngHelperInternal.readInt2fromBytes(chunk.data, 0); - mon = PngHelperInternal.readInt1fromByte(chunk.data, 2); - day = PngHelperInternal.readInt1fromByte(chunk.data, 3); - hour = PngHelperInternal.readInt1fromByte(chunk.data, 4); - min = PngHelperInternal.readInt1fromByte(chunk.data, 5); - sec = PngHelperInternal.readInt1fromByte(chunk.data, 6); - } - - public void setNow(final int secsAgo) { - final Calendar d = Calendar.getInstance(); - d.setTimeInMillis(System.currentTimeMillis() - 1000 * (long) secsAgo); - year = d.get(Calendar.YEAR); - mon = d.get(Calendar.MONTH) + 1; - day = d.get(Calendar.DAY_OF_MONTH); - hour = d.get(Calendar.HOUR_OF_DAY); - min = d.get(Calendar.MINUTE); - sec = d.get(Calendar.SECOND); - } - - public void setYMDHMS(final int yearx, final int monx, final int dayx, final int hourx, final int minx, - final int secx) { - year = yearx; - mon = monx; - day = dayx; - hour = hourx; - min = minx; - sec = secx; - } - - public int[] getYMDHMS() { - return new int[] { year, mon, day, hour, min, sec }; - } - - /** format YYYY/MM/DD HH:mm:SS */ - public String getAsString() { - return String.format("%04d/%02d/%02d %02d:%02d:%02d", year, mon, day, hour, min, sec); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTRNS.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTRNS.java deleted file mode 100644 index dd50730..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTRNS.java +++ /dev/null @@ -1,150 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjException; - -/** - * tRNS chunk. - *

- * see http://www.w3.org/TR/PNG/#11tRNS - *

- * this chunk structure depends on the image type - */ -public class PngChunkTRNS extends PngChunkSingle { - public final static String ID = ChunkHelper.tRNS; - - // http://www.w3.org/TR/PNG/#11tRNS - - // only one of these is meaningful, depending on the image type - private int gray; - private int red, green, blue; - private int[] paletteAlpha = new int[] {}; - - public PngChunkTRNS(final ImageInfo info) { - super(PngChunkTRNS.ID, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.AFTER_PLTE_BEFORE_IDAT; - } - - @Override - public ChunkRaw createRawChunk() { - ChunkRaw c = null; - if (imgInfo.greyscale) { - c = createEmptyChunk(2, true); - PngHelperInternal.writeInt2tobytes(gray, c.data, 0); - } else if (imgInfo.indexed) { - c = createEmptyChunk(paletteAlpha.length, true); - for (int n = 0; n < c.len; n++) - c.data[n] = (byte) paletteAlpha[n]; - } else { - c = createEmptyChunk(6, true); - PngHelperInternal.writeInt2tobytes(red, c.data, 0); - PngHelperInternal.writeInt2tobytes(green, c.data, 0); - PngHelperInternal.writeInt2tobytes(blue, c.data, 0); - } - return c; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - if (imgInfo.greyscale) - gray = PngHelperInternal.readInt2fromBytes(c.data, 0); - else if (imgInfo.indexed) { - final int nentries = c.data.length; - paletteAlpha = new int[nentries]; - for (int n = 0; n < nentries; n++) - paletteAlpha[n] = c.data[n] & 0xff; - } else { - red = PngHelperInternal.readInt2fromBytes(c.data, 0); - green = PngHelperInternal.readInt2fromBytes(c.data, 2); - blue = PngHelperInternal.readInt2fromBytes(c.data, 4); - } - } - - /** - * Set rgb values - * - */ - public void setRGB(final int r, final int g, final int b) { - if (imgInfo.greyscale || imgInfo.indexed) - throw new PngjException("only rgb or rgba images support this"); - red = r; - green = g; - blue = b; - } - - public int[] getRGB() { - if (imgInfo.greyscale || imgInfo.indexed) - throw new PngjException("only rgb or rgba images support this"); - return new int[] { red, green, blue }; - } - - public int getRGB888() { - if (imgInfo.greyscale || imgInfo.indexed) - throw new PngjException("only rgb or rgba images support this"); - return red << 16 | green << 8 | blue; - } - - public void setGray(final int g) { - if (!imgInfo.greyscale) - throw new PngjException("only grayscale images support this"); - gray = g; - } - - public int getGray() { - if (!imgInfo.greyscale) - throw new PngjException("only grayscale images support this"); - return gray; - } - - /** - * Sets the length of the palette alpha. This should be followed by - * #setNentriesPalAlpha - * - * @param idx - * index inside the table - * @param val - * alpha value (0-255) - */ - public void setEntryPalAlpha(final int idx, final int val) { - paletteAlpha[idx] = val; - } - - public void setNentriesPalAlpha(final int len) { - paletteAlpha = new int[len]; - } - - /** - * WARNING: non deep copy. See also {@link #setNentriesPalAlpha(int)} - * {@link #setEntryPalAlpha(int, int)} - */ - public void setPalAlpha(final int[] palAlpha) { - if (!imgInfo.indexed) - throw new PngjException("only indexed images support this"); - paletteAlpha = palAlpha; - } - - /** - * WARNING: non deep copy - */ - public int[] getPalletteAlpha() { - return paletteAlpha; - } - - /** - * to use when only one pallete index is set as totally transparent - */ - public void setIndexEntryAsTransparent(final int palAlphaIndex) { - if (!imgInfo.indexed) - throw new PngjException("only indexed images support this"); - paletteAlpha = new int[] { palAlphaIndex + 1 }; - for (int i = 0; i < palAlphaIndex; i++) - paletteAlpha[i] = 255; - paletteAlpha[palAlphaIndex] = 0; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTextVar.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTextVar.java deleted file mode 100644 index 1591011..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkTextVar.java +++ /dev/null @@ -1,60 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; - -/** - * Superclass (abstract) for three textual chunks (TEXT, ITXT, ZTXT) - */ -public abstract class PngChunkTextVar extends PngChunkMultiple { - protected String key; // key/val: only for tEXt. lazy computed - protected String val; - - // http://www.w3.org/TR/PNG/#11keywords - public final static String KEY_Title = "Title"; // Short (one line) title or caption for image - public final static String KEY_Author = "Author"; // Name of image's creator - public final static String KEY_Description = "Description"; // Description of image (possibly - // long) - public final static String KEY_Copyright = "Copyright"; // Copyright notice - public final static String KEY_Creation_Time = "Creation Time"; // Time of original image creation - public final static String KEY_Software = "Software"; // Software used to create the image - public final static String KEY_Disclaimer = "Disclaimer"; // Legal disclaimer - public final static String KEY_Warning = "Warning"; // Warning of nature of content - public final static String KEY_Source = "Source"; // Device used to create the image - public final static String KEY_Comment = "Comment"; // Miscellaneous comment - - protected PngChunkTextVar(final String id, final ImageInfo info) { - super(id, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.NONE; - } - - public static class PngTxtInfo { - public String title; - public String author; - public String description; - public String creation_time;// = (new Date()).toString(); - public String software; - public String disclaimer; - public String warning; - public String source; - public String comment; - - } - - public String getKey() { - return key; - } - - public String getVal() { - return val; - } - - public void setKeyVal(final String key, final String val) { - this.key = key; - this.val = val; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkUNKNOWN.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkUNKNOWN.java deleted file mode 100644 index dbc8ad0..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkUNKNOWN.java +++ /dev/null @@ -1,40 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import ar.com.hjg.pngj.ImageInfo; - -/** - * Placeholder for UNKNOWN (custom or not) chunks. - *

- * For PngReader, a chunk is unknown if it's not registered in the chunk factory - */ -public class PngChunkUNKNOWN extends PngChunkMultiple { // unkown, custom or not - - public PngChunkUNKNOWN(final String id, final ImageInfo info) { - super(id, info); - } - - @Override - public ChunkOrderingConstraint getOrderingConstraint() { - return ChunkOrderingConstraint.NONE; - } - - @Override - public ChunkRaw createRawChunk() { - return raw; - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - - } - - /* does not do deep copy! */ - public byte[] getData() { - return raw.data; - } - - /* does not do deep copy! */ - public void setData(final byte[] data) { - raw.data = data; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkZTXT.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkZTXT.java deleted file mode 100644 index 7ad9e69..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngChunkZTXT.java +++ /dev/null @@ -1,61 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; - -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjException; - -/** - * zTXt chunk. - *

- * see http://www.w3.org/TR/PNG/#11zTXt - */ -public class PngChunkZTXT extends PngChunkTextVar { - public final static String ID = ChunkHelper.zTXt; - - // http://www.w3.org/TR/PNG/#11zTXt - public PngChunkZTXT(final ImageInfo info) { - super(PngChunkZTXT.ID, info); - } - - @Override - public ChunkRaw createRawChunk() { - if (key == null || key.trim().length() == 0) - throw new PngjException("Text chunk key must be non empty"); - try { - final ByteArrayOutputStream ba = new ByteArrayOutputStream(); - ba.write(ChunkHelper.toBytes(key)); - ba.write(0); // separator - ba.write(0); // compression method: 0 - final byte[] textbytes = ChunkHelper.compressBytes(ChunkHelper.toBytes(val), true); - ba.write(textbytes); - final byte[] b = ba.toByteArray(); - final ChunkRaw chunk = createEmptyChunk(b.length, false); - chunk.data = b; - return chunk; - } catch (final IOException e) { - throw new PngjException(e); - } - } - - @Override - public void parseFromRaw(final ChunkRaw c) { - int nullsep = -1; - for (int i = 0; i < c.data.length; i++) { // look for first zero - if (c.data[i] != 0) - continue; - nullsep = i; - break; - } - if (nullsep < 0 || nullsep > c.data.length - 2) - throw new PngjException("bad zTXt chunk: no separator found"); - key = ChunkHelper.toString(c.data, 0, nullsep); - final int compmet = c.data[nullsep + 1]; - if (compmet != 0) - throw new PngjException("bad zTXt chunk: unknown compression method"); - final byte[] uncomp = ChunkHelper.compressBytes(c.data, nullsep + 2, c.data.length - nullsep - 2, false); // uncompress - val = ChunkHelper.toString(uncomp); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngMetadata.java b/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngMetadata.java deleted file mode 100644 index 46c30c9..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/PngMetadata.java +++ /dev/null @@ -1,235 +0,0 @@ -package ar.com.hjg.pngj.chunks; - -import java.util.ArrayList; -import java.util.List; - -import ar.com.hjg.pngj.PngjException; - -/** - * We consider "image metadata" every info inside the image except for the most - * basic image info (IHDR chunk - ImageInfo - * class) and the pixels values. - *

- * This includes the palette (if present) and all the ancillary chunks - *

- * This class provides a wrapper over the collection of chunks of a image (read - * or to write) and provides some high - * level methods to access them - */ -public class PngMetadata { - private final ChunksList chunkList; - private final boolean readonly; - - public PngMetadata(final ChunksList chunks) { - chunkList = chunks; - if (chunks instanceof ChunksListForWrite) - readonly = false; - else - readonly = true; - } - - /** - * Queues the chunk at the writer - *

- * lazyOverwrite: if true, checks if there is a queued "equivalent" chunk - * and if so, overwrites it. However if that - * not check for already written chunks. - */ - public void queueChunk(final PngChunk c, final boolean lazyOverwrite) { - final ChunksListForWrite cl = getChunkListW(); - if (readonly) - throw new PngjException("cannot set chunk : readonly metadata"); - if (lazyOverwrite) - ChunkHelper.trimList(cl.getQueuedChunks(), c2 -> ChunkHelper.equivalent(c, c2)); - cl.queue(c); - } - - public void queueChunk(final PngChunk c) { - queueChunk(c, true); - } - - private ChunksListForWrite getChunkListW() { - return (ChunksListForWrite) chunkList; - } - - // ///// high level utility methods follow //////////// - - // //////////// DPI - - /** - * returns -1 if not found or dimension unknown - */ - public double[] getDpi() { - final PngChunk c = chunkList.getById1(ChunkHelper.pHYs, true); - if (c == null) - return new double[] { -1, -1 }; - else - return ((PngChunkPHYS) c).getAsDpi2(); - } - - public void setDpi(final double x) { - setDpi(x, x); - } - - public void setDpi(final double x, final double y) { - final PngChunkPHYS c = new PngChunkPHYS(chunkList.imageInfo); - c.setAsDpi2(x, y); - queueChunk(c); - } - - // //////////// TIME - - /** - * Creates a time chunk with current time, less secsAgo seconds - *

- * - * @return Returns the created-queued chunk, just in case you want to - * examine or modify it - */ - public PngChunkTIME setTimeNow(final int secsAgo) { - final PngChunkTIME c = new PngChunkTIME(chunkList.imageInfo); - c.setNow(secsAgo); - queueChunk(c); - return c; - } - - public PngChunkTIME setTimeNow() { - return setTimeNow(0); - } - - /** - * Creates a time chunk with diven date-time - *

- * - * @return Returns the created-queued chunk, just in case you want to - * examine or modify it - */ - public PngChunkTIME setTimeYMDHMS(final int yearx, final int monx, final int dayx, final int hourx, final int minx, - final int secx) { - final PngChunkTIME c = new PngChunkTIME(chunkList.imageInfo); - c.setYMDHMS(yearx, monx, dayx, hourx, minx, secx); - queueChunk(c, true); - return c; - } - - /** - * null if not found - */ - public PngChunkTIME getTime() { - return (PngChunkTIME) chunkList.getById1(ChunkHelper.tIME); - } - - public String getTimeAsString() { - final PngChunkTIME c = getTime(); - return c == null ? "" : c.getAsString(); - } - - // //////////// TEXT - - /** - * Creates a text chunk and queue it. - *

- * - * @param k - * : key (latin1) - * @param val - * (arbitrary, should be latin1 if useLatin1) - * @param useLatin1 - * @param compress - * @return Returns the created-queued chunks, just in case you want to - * examine, touch it - */ - public PngChunkTextVar setText(final String k, final String val, final boolean useLatin1, final boolean compress) { - if (compress && !useLatin1) - throw new PngjException("cannot compress non latin text"); - PngChunkTextVar c; - if (useLatin1) { - if (compress) - c = new PngChunkZTXT(chunkList.imageInfo); - else - c = new PngChunkTEXT(chunkList.imageInfo); - } else { - c = new PngChunkITXT(chunkList.imageInfo); - ((PngChunkITXT) c).setLangtag(k); // we use the same orig tag (this is not quite right) - } - c.setKeyVal(k, val); - queueChunk(c, true); - return c; - } - - public PngChunkTextVar setText(final String k, final String val) { - return setText(k, val, false, false); - } - - /** - * gets all text chunks with a given key - *

- * returns null if not found - *

- * Warning: this does not check the "lang" key of iTxt - */ - @SuppressWarnings("unchecked") - public List getTxtsForKey(final String k) { - @SuppressWarnings("rawtypes") - final List c = new ArrayList(); - c.addAll(chunkList.getById(ChunkHelper.tEXt, k)); - c.addAll(chunkList.getById(ChunkHelper.zTXt, k)); - c.addAll(chunkList.getById(ChunkHelper.iTXt, k)); - return c; - } - - /** - * Returns empty if not found, concatenated (with newlines) if multiple! - - * and trimmed - *

- * Use getTxtsForKey() if you don't want this behaviour - */ - public String getTxtForKey(final String k) { - final List li = getTxtsForKey(k); - if (li.isEmpty()) - return ""; - final StringBuilder t = new StringBuilder(); - for (final PngChunkTextVar c : li) - t.append(c.getVal()).append("\n"); - return t.toString().trim(); - } - - /** - * Returns the palette chunk, if present - * - * @return null if not present - */ - public PngChunkPLTE getPLTE() { - return (PngChunkPLTE) chunkList.getById1(PngChunkPLTE.ID); - } - - /** - * Creates a new empty palette chunk, queues it for write and return it to - * the caller, who should fill its entries - */ - public PngChunkPLTE createPLTEChunk() { - final PngChunkPLTE plte = new PngChunkPLTE(chunkList.imageInfo); - queueChunk(plte); - return plte; - } - - /** - * Returns the TRNS chunk, if present - * - * @return null if not present - */ - public PngChunkTRNS getTRNS() { - return (PngChunkTRNS) chunkList.getById1(PngChunkTRNS.ID); - } - - /** - * Creates a new empty TRNS chunk, queues it for write and return it to the - * caller, who should fill its entries - */ - public PngChunkTRNS createTRNSChunk() { - final PngChunkTRNS trns = new PngChunkTRNS(chunkList.imageInfo); - queueChunk(trns); - return trns; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/chunks/package.html b/teavm/src/main/java/ar/com/hjg/pngj/chunks/package.html deleted file mode 100644 index 1374066..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/chunks/package.html +++ /dev/null @@ -1,9 +0,0 @@ - - -

-Contains the code related to chunk management for the PNGJ library.

-

-Only needed by client code if some special chunk handling is required. -

- - diff --git a/teavm/src/main/java/ar/com/hjg/pngj/package.html b/teavm/src/main/java/ar/com/hjg/pngj/package.html deleted file mode 100644 index a417d56..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/package.html +++ /dev/null @@ -1,49 +0,0 @@ - - -

-PNGJ main package -

-

-Users of this library should rarely need more than the public members of this package.
-Newcomers: start with PngReader and PngWriter. -

-

-Example of use: this code reads a true colour PNG image (RGB8 or RGBA8) -and reduces the red channel by half, increasing the green by 20. -It copies all the "safe" metadata from the original image, and adds a textual metadata. - -

-  public static void convert(String origFilename, String destFilename) {
-    // you can also use PngReader (esentially the same) or PngReaderByte 
-    PngReaderInt pngr = new PngReaderInt(new File(origFilename));  
-    System.out.println(pngr.toString());
-    int channels = pngr.imgInfo.channels;
-    if (channels < 3 || pngr.imgInfo.bitDepth != 8)
-       throw new RuntimeException("For simplicity this supports only RGB8/RGBA8 images");
-    // writer with same image properties as original
-    PngWriter pngw = new PngWriter(new File(destFilename), pngr.imgInfo, true);
-    // instruct the writer to grab all ancillary chunks from the original
-    pngw.copyChunksFrom(pngr.getChunksList(), ChunkCopyBehaviour.COPY_ALL_SAFE);
-    // add a textual chunk to writer
-    pngw.getMetadata().setText(PngChunkTextVar.KEY_Description, "Decreased red and increased green");
-    // also: while(pngr.hasMoreRows())
-    for (int row = 0; row < pngr.imgInfo.rows; row++) {  
-       ImageLineInt l1 = pngr.readRowInt(); // each element is a sample
-       int[] scanline = l1.getScanline(); // to save typing
-       for (int j = 0; j < pngr.imgInfo.cols; j++) {
-          scanline[j * channels] /= 2;
-          scanline[j * channels + 1] = ImageLineHelper.clampTo_0_255(scanline[j * channels + 1] + 20);
-       }
-       pngw.writeRow(l1);
-    }
-    pngr.end(); // it's recommended to end the reader first, in case there are trailing chunks to read
-    pngw.end();
- }
-
-
- -For more examples, see the tests and samples. - -

- - diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStream.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStream.java deleted file mode 100644 index 7c7425a..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStream.java +++ /dev/null @@ -1,168 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -import java.io.OutputStream; - -import ar.com.hjg.pngj.IDatChunkWriter; - -/** - * This is an OutputStream that compresses (via Deflater or a deflater-like - * object), and optionally passes the - * compressed stream to another output stream. - * - * It allows to compute in/out/ratio stats. - * - * It works as a stream (similar to DeflaterOutputStream), but it's peculiar in - * that it expects that each writes has a - * fixed length (other lenghts are accepted, but it's less efficient) and that - * the total amount of bytes is known (so it - * can close itself, but it can also be closed on demand) In PNGJ use, the block - * is typically a row (including filter - * byte). - * - * We use this to do the real compression (with Deflate) but also to compute - * tentative estimators - * - * If not closed, it can be recicled via reset() - * - * - */ -public abstract class CompressorStream extends OutputStream { - - protected IDatChunkWriter idatChunkWriter; - public final int blockLen; - public final long totalbytes; - - boolean closed = false; - protected boolean done = false; - protected long bytesIn = 0; - protected long bytesOut = 0; - protected int block = -1; - - /** optionally stores the first byte of each block (row) */ - private byte[] firstBytes; - protected boolean storeFirstByte = false; - - /** - * - * @param idatCw - * Can be null (if we are only interested in compute compression - * ratio) - * @param blockLen - * Estimated maximum block length. If unknown, use -1. - * @param totalbytes - * Expected total bytes to be fed. If unknown, use -1. - */ - public CompressorStream(final IDatChunkWriter idatCw, int blockLen, long totalbytes) { - idatChunkWriter = idatCw; - if (blockLen < 0) - blockLen = 4096; - if (totalbytes < 0) - totalbytes = Long.MAX_VALUE; - if (blockLen < 1 || totalbytes < 1) - throw new RuntimeException(" maxBlockLen or totalLen invalid"); - this.blockLen = blockLen; - this.totalbytes = totalbytes; - } - - /** Releases resources. Idempotent. */ - @Override - public void close() { - done(); - if (idatChunkWriter != null) - idatChunkWriter.close(); - closed = true; - } - - /** - * Will be called automatically when the number of bytes reaches the total - * expected Can be also be called from - * outside. This should set the flag done=true - */ - public abstract void done(); - - @Override - public final void write(final byte[] data) { - write(data, 0, data.length); - } - - @Override - public final void write(final byte[] data, int off, int len) { - block++; - if (len <= blockLen) { // normal case - mywrite(data, off, len); - if (storeFirstByte && block < firstBytes.length) - firstBytes[block] = data[off]; // only makes sense in this case - } else - while (len > 0) { - mywrite(data, off, blockLen); - off += blockLen; - len -= blockLen; - } - if (bytesIn >= totalbytes) - done(); - - } - - /** - * same as write, but guarantedd to not exceed blockLen The implementation - * should update bytesOut and bytesInt but not - * check for totalBytes - */ - public abstract void mywrite(byte[] data, int off, int len); - - /** - * compressed/raw. This should be called only when done - */ - public final double getCompressionRatio() { - return bytesOut == 0 ? 1.0 : bytesOut / (double) bytesIn; - } - - /** - * raw (input) bytes. This should be called only when done - */ - public final long getBytesRaw() { - return bytesIn; - } - - /** - * compressed (out) bytes. This should be called only when done - */ - public final long getBytesCompressed() { - return bytesOut; - } - - public boolean isClosed() { - return closed; - } - - public boolean isDone() { - return done; - } - - public byte[] getFirstBytes() { - return firstBytes; - } - - public void setStoreFirstByte(final boolean storeFirstByte, final int nblocks) { - this.storeFirstByte = storeFirstByte; - if (this.storeFirstByte) { - if (firstBytes == null || firstBytes.length < nblocks) - firstBytes = new byte[nblocks]; - } else - firstBytes = null; - } - - public void reset() { - done(); - bytesIn = 0; - bytesOut = 0; - block = -1; - done = false; - } - - @Override - public void write(final int i) { // should not be used - write(new byte[] { (byte) i }); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStreamDeflater.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStreamDeflater.java deleted file mode 100644 index 291bf4d..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStreamDeflater.java +++ /dev/null @@ -1,105 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -import java.util.zip.Deflater; - -import ar.com.hjg.pngj.IDatChunkWriter; -import ar.com.hjg.pngj.PngjOutputException; - -/** - * CompressorStream backed by a Deflater. - * - * Note that the Deflater is not disposed after done, you should either recycle - * this with reset() or dispose it with - * close() - * - */ -public class CompressorStreamDeflater extends CompressorStream { - - protected Deflater deflater; - protected byte[] buf1; // temporary storage of compressed bytes: only used if idatWriter is null - protected boolean deflaterIsOwn = true; - - /** - * if a deflater is passed, it must be already reset. It will not be - * released on close - */ - public CompressorStreamDeflater(final IDatChunkWriter idatCw, final int maxBlockLen, final long totalLen, final Deflater def) { - super(idatCw, maxBlockLen, totalLen); - deflater = def == null ? new Deflater() : def; - deflaterIsOwn = def == null; - } - - public CompressorStreamDeflater(final IDatChunkWriter idatCw, final int maxBlockLen, final long totalLen) { - this(idatCw, maxBlockLen, totalLen, null); - } - - public CompressorStreamDeflater(final IDatChunkWriter idatCw, final int maxBlockLen, final long totalLen, final int deflaterCompLevel, final int deflaterStrategy) { - this(idatCw, maxBlockLen, totalLen, new Deflater(deflaterCompLevel)); - deflaterIsOwn = true; - deflater.setStrategy(deflaterStrategy); - } - - @Override - public void mywrite(final byte[] data, final int off, final int len) { - if (deflater.finished() || done || closed) - throw new PngjOutputException("write beyond end of stream"); - deflater.setInput(data, off, len); - bytesIn += len; - while (!deflater.needsInput()) - deflate(); - } - - protected void deflate() { - byte[] buf; - int off, n; - if (idatChunkWriter != null) { - buf = idatChunkWriter.getBuf(); - off = idatChunkWriter.getOffset(); - n = idatChunkWriter.getAvailLen(); - } else { - if (buf1 == null) - buf1 = new byte[4096]; - buf = buf1; - off = 0; - n = buf1.length; - } - final int len = deflater.deflate(buf, off, n); - if (len > 0) { - if (idatChunkWriter != null) - idatChunkWriter.incrementOffset(len); - bytesOut += len; - } - } - - /** automatically called when done */ - @Override - public void done() { - if (done) - return; - if (!deflater.finished()) { - deflater.finish(); - while (!deflater.finished()) - deflate(); - } - done = true; - if (idatChunkWriter != null) - idatChunkWriter.close(); - } - - @Override - public void close() { - done(); - try { - if (deflaterIsOwn) - deflater.end(); - } catch (final Exception e) {} - super.close(); - } - - @Override - public void reset() { - deflater.reset(); - super.reset(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStreamLz4.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStreamLz4.java deleted file mode 100644 index 318918f..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/CompressorStreamLz4.java +++ /dev/null @@ -1,94 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -import java.util.zip.Deflater; - -import ar.com.hjg.pngj.IDatChunkWriter; -import ar.com.hjg.pngj.PngjOutputException; - -/** - * This class uses a quick compressor to get a rough estimate of deflate - * compression ratio. - * - * This just ignores the outputStream, and the deflater related parameters - */ -public class CompressorStreamLz4 extends CompressorStream { - - private final DeflaterEstimatorLz4 lz4; - - private byte[] buf; // lazily allocated, only if needed - private final int buffer_size; - // bufpos=bytes in buffer yet not compressed (bytesIn include this) - private int inbuf = 0; - - private static final int MAX_BUFFER_SIZE = 16000; - - public CompressorStreamLz4(final IDatChunkWriter os, final int maxBlockLen, final long totalLen) { - super(os, maxBlockLen, totalLen); - lz4 = new DeflaterEstimatorLz4(); - buffer_size = (int) (totalLen > CompressorStreamLz4.MAX_BUFFER_SIZE ? CompressorStreamLz4.MAX_BUFFER_SIZE : totalLen); - } - - public CompressorStreamLz4(final IDatChunkWriter os, final int maxBlockLen, final long totalLen, final Deflater def) { - this(os, maxBlockLen, totalLen);// edlfater ignored - } - - public CompressorStreamLz4(final IDatChunkWriter os, final int maxBlockLen, final long totalLen, final int deflaterCompLevel, final int deflaterStrategy) { - this(os, maxBlockLen, totalLen); // paramters ignored - } - - @Override - public void mywrite(final byte[] b, int off, int len) { - if (len == 0) - return; - if (done || closed) - throw new PngjOutputException("write beyond end of stream"); - bytesIn += len; - while (len > 0) - if (inbuf == 0 && (len >= CompressorStreamLz4.MAX_BUFFER_SIZE || bytesIn == totalbytes)) { - // direct copy (buffer might be null or empty) - bytesOut += lz4.compressEstim(b, off, len); - len = 0; - } else { - if (buf == null) - buf = new byte[buffer_size]; - final int len1 = inbuf + len <= buffer_size ? len : buffer_size - inbuf; // to copy - if (len1 > 0) - System.arraycopy(b, off, buf, inbuf, len1); - inbuf += len1; - len -= len1; - off += len1; - if (inbuf == buffer_size) - compressFromBuffer(); - } - } - - void compressFromBuffer() { - if (inbuf > 0) { - bytesOut += lz4.compressEstim(buf, 0, inbuf); - inbuf = 0; - } - } - - @Override - public void done() { - if (!done) { - compressFromBuffer(); - done = true; - } - } - - @Override - public void close() { - done(); - if (!closed) { - super.close(); - buf = null; - } - } - - @Override - public void reset() { - super.reset(); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/DeflaterEstimatorHjg.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/DeflaterEstimatorHjg.java deleted file mode 100644 index 4f8fab6..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/DeflaterEstimatorHjg.java +++ /dev/null @@ -1,248 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -final public class DeflaterEstimatorHjg { - - /** - * This object is stateless, it's thread safe and can be reused - */ - public DeflaterEstimatorHjg() {} - - /** - * Estimates the length of the compressed bytes, as compressed by Lz4 - * WARNING: if larger than LZ4_64K_LIMIT it cuts it - * in fragments - * - * WARNING: if some part of the input is discarded, this should return the - * proportional (so that - * returnValue/srcLen=compressionRatio) - * - * @param src - * @param srcOff - * @param srcLen - * @return length of the compressed bytes - */ - public int compressEstim(final byte[] src, int srcOff, final int srcLen) { - if (srcLen < 10) - return srcLen; // too small - int stride = DeflaterEstimatorHjg.LZ4_64K_LIMIT - 1; - final int segments = (srcLen + stride - 1) / stride; - stride = srcLen / segments; - if (stride >= DeflaterEstimatorHjg.LZ4_64K_LIMIT - 1 || stride * segments > srcLen || segments < 1 || stride < 1) - throw new RuntimeException("?? " + srcLen); - int bytesIn = 0; - int bytesOut = 0; - int len = srcLen; - while (len > 0) { - if (len > stride) - len = stride; - bytesOut += DeflaterEstimatorHjg.compress64k(src, srcOff, len); - srcOff += len; - bytesIn += len; - len = srcLen - bytesIn; - } - final double ratio = bytesOut / (double) bytesIn; - return bytesIn == srcLen ? bytesOut : (int) (ratio * srcLen + 0.5); - } - - public int compressEstim(final byte[] src) { - return compressEstim(src, 0, src.length); - } - - static final int MEMORY_USAGE = 14; - static final int NOT_COMPRESSIBLE_DETECTION_LEVEL = 6; // see SKIP_STRENGTH - - static final int MIN_MATCH = 4; - - static final int HASH_LOG = DeflaterEstimatorHjg.MEMORY_USAGE - 2; - static final int HASH_TABLE_SIZE = 1 << DeflaterEstimatorHjg.HASH_LOG; - - static final int SKIP_STRENGTH = Math.max(DeflaterEstimatorHjg.NOT_COMPRESSIBLE_DETECTION_LEVEL, 2); // 6 findMatchAttempts = - // 2^SKIP_STRENGTH+3 - static final int COPY_LENGTH = 8; - static final int LAST_LITERALS = 5; - static final int MF_LIMIT = DeflaterEstimatorHjg.COPY_LENGTH + DeflaterEstimatorHjg.MIN_MATCH; - static final int MIN_LENGTH = DeflaterEstimatorHjg.MF_LIMIT + 1; - - static final int MAX_DISTANCE = 1 << 16; - - static final int ML_BITS = 4; - static final int ML_MASK = (1 << DeflaterEstimatorHjg.ML_BITS) - 1; - static final int RUN_BITS = 8 - DeflaterEstimatorHjg.ML_BITS; - static final int RUN_MASK = (1 << DeflaterEstimatorHjg.RUN_BITS) - 1; - - static final int LZ4_64K_LIMIT = (1 << 16) + DeflaterEstimatorHjg.MF_LIMIT - 1; - static final int HASH_LOG_64K = DeflaterEstimatorHjg.HASH_LOG + 1; - static final int HASH_TABLE_SIZE_64K = 1 << DeflaterEstimatorHjg.HASH_LOG_64K; - - static final int HASH_LOG_HC = 15; - static final int HASH_TABLE_SIZE_HC = 1 << DeflaterEstimatorHjg.HASH_LOG_HC; - static final int OPTIMAL_ML = DeflaterEstimatorHjg.ML_MASK - 1 + DeflaterEstimatorHjg.MIN_MATCH; - - static int compress64k(final byte[] src, final int srcOff, final int srcLen) { - final int srcEnd = srcOff + srcLen; - final int srcLimit = srcEnd - DeflaterEstimatorHjg.LAST_LITERALS; - final int mflimit = srcEnd - DeflaterEstimatorHjg.MF_LIMIT; - - int sOff = srcOff, dOff = 0; - - int anchor = sOff; - - if (srcLen >= DeflaterEstimatorHjg.MIN_LENGTH) { - - final short[] hashTable = new short[DeflaterEstimatorHjg.HASH_TABLE_SIZE_64K]; - - ++sOff; - - main: while (true) { - - // find a match - int forwardOff = sOff; - - int ref; - int findMatchAttempts1 = (1 << DeflaterEstimatorHjg.SKIP_STRENGTH) + 3; // 64+3=67 - do { - sOff = forwardOff; - forwardOff += findMatchAttempts1++ >>> DeflaterEstimatorHjg.SKIP_STRENGTH; - - if (forwardOff > mflimit) - break main; // ends all - - final int h = DeflaterEstimatorHjg.hash64k(DeflaterEstimatorHjg.readInt(src, sOff)); - ref = srcOff + DeflaterEstimatorHjg.readShort(hashTable, h); - DeflaterEstimatorHjg.writeShort(hashTable, h, sOff - srcOff); - } while (!DeflaterEstimatorHjg.readIntEquals(src, ref, sOff)); - - // catch up - final int excess = DeflaterEstimatorHjg.commonBytesBackward(src, ref, sOff, srcOff, anchor); - sOff -= excess; - ref -= excess; - // sequence == refsequence - final int runLen = sOff - anchor; - dOff++; - - if (runLen >= DeflaterEstimatorHjg.RUN_MASK) { - if (runLen > DeflaterEstimatorHjg.RUN_MASK) - dOff += (runLen - DeflaterEstimatorHjg.RUN_MASK) / 0xFF; - dOff++; - } - dOff += runLen; - while (true) { - // encode offset - dOff += 2; - // count nb matches - sOff += DeflaterEstimatorHjg.MIN_MATCH; - ref += DeflaterEstimatorHjg.MIN_MATCH; - final int matchLen = DeflaterEstimatorHjg.commonBytes(src, ref, sOff, srcLimit); - sOff += matchLen; - // encode match len - if (matchLen >= DeflaterEstimatorHjg.ML_MASK) { - if (matchLen >= DeflaterEstimatorHjg.ML_MASK + 0xFF) - dOff += (matchLen - DeflaterEstimatorHjg.ML_MASK) / 0xFF; - dOff++; - } - // test end of chunk - if (sOff > mflimit) { - anchor = sOff; - break main; - } - // fill table - DeflaterEstimatorHjg.writeShort(hashTable, DeflaterEstimatorHjg.hash64k(DeflaterEstimatorHjg.readInt(src, sOff - 2)), sOff - 2 - srcOff); - // test next position - final int h = DeflaterEstimatorHjg.hash64k(DeflaterEstimatorHjg.readInt(src, sOff)); - ref = srcOff + DeflaterEstimatorHjg.readShort(hashTable, h); - DeflaterEstimatorHjg.writeShort(hashTable, h, sOff - srcOff); - if (!DeflaterEstimatorHjg.readIntEquals(src, sOff, ref)) - break; - dOff++; - } - // prepare next loop - anchor = sOff++; - } - } - final int runLen = srcEnd - anchor; - if (runLen >= DeflaterEstimatorHjg.RUN_MASK + 0xFF) - dOff += (runLen - DeflaterEstimatorHjg.RUN_MASK) / 0xFF; - dOff++; - dOff += runLen; - return dOff; - } - - static int maxCompressedLength(final int length) { - if (length < 0) - throw new IllegalArgumentException("length must be >= 0, got " + length); - return length + length / 255 + 16; - } - - static int hash(final int i) { - return i * -1640531535 >>> DeflaterEstimatorHjg.MIN_MATCH * 8 - DeflaterEstimatorHjg.HASH_LOG; - } - - static int hash64k(final int i) { - return i * -1640531535 >>> DeflaterEstimatorHjg.MIN_MATCH * 8 - DeflaterEstimatorHjg.HASH_LOG_64K; - } - - static int readShortLittleEndian(final byte[] buf, final int i) { - return buf[i] & 0xFF | (buf[i + 1] & 0xFF) << 8; - } - - static boolean readIntEquals(final byte[] buf, final int i, final int j) { - return buf[i] == buf[j] && buf[i + 1] == buf[j + 1] && buf[i + 2] == buf[j + 2] && buf[i + 3] == buf[j + 3]; - } - - static int commonBytes(final byte[] b, int o1, int o2, final int limit) { - int count = 0; - while (o2 < limit && b[o1++] == b[o2++]) - ++count; - return count; - } - - static int commonBytesBackward(final byte[] b, int o1, int o2, final int l1, final int l2) { - int count = 0; - while (o1 > l1 && o2 > l2 && b[--o1] == b[--o2]) - ++count; - return count; - } - - static int readShort(final short[] buf, final int off) { - return buf[off] & 0xFFFF; - } - - static byte readByte(final byte[] buf, final int i) { - return buf[i]; - } - - static void checkRange(final byte[] buf, final int off) { - if (off < 0 || off >= buf.length) - throw new ArrayIndexOutOfBoundsException(off); - } - - static void checkRange(final byte[] buf, final int off, final int len) { - DeflaterEstimatorHjg.checkLength(len); - if (len > 0) { - DeflaterEstimatorHjg.checkRange(buf, off); - DeflaterEstimatorHjg.checkRange(buf, off + len - 1); - } - } - - static void checkLength(final int len) { - if (len < 0) - throw new IllegalArgumentException("lengths must be >= 0"); - } - - static int readIntBE(final byte[] buf, final int i) { - return (buf[i] & 0xFF) << 24 | (buf[i + 1] & 0xFF) << 16 | (buf[i + 2] & 0xFF) << 8 | buf[i + 3] & 0xFF; - } - - static int readIntLE(final byte[] buf, final int i) { - return buf[i] & 0xFF | (buf[i + 1] & 0xFF) << 8 | (buf[i + 2] & 0xFF) << 16 | (buf[i + 3] & 0xFF) << 24; - } - - static int readInt(final byte[] buf, final int i) { - return DeflaterEstimatorHjg.readIntBE(buf, i); - } - - static void writeShort(final short[] buf, final int off, final int v) { - buf[off] = (short) v; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/DeflaterEstimatorLz4.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/DeflaterEstimatorLz4.java deleted file mode 100644 index 74d544c..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/DeflaterEstimatorLz4.java +++ /dev/null @@ -1,265 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -import java.nio.ByteOrder; - -/** - * This estimator actually uses the LZ4 compression algorithm, and hopes that - * it's well correlated with Deflater. It's - * about 3 to 4 times faster than Deflater. - * - * This is a modified heavily trimmed version of the - * net.jpountz.lz4.LZ4JavaSafeCompressor class plus some methods from - * other classes from LZ4 Java library: https://github.com/jpountz/lz4-java , - * originally licensed under the Apache - * License 2.0 - */ -final public class DeflaterEstimatorLz4 { - - /** - * This object is stateless, it's thread safe and can be reused - */ - public DeflaterEstimatorLz4() {} - - /** - * Estimates the length of the compressed bytes, as compressed by Lz4 - * WARNING: if larger than LZ4_64K_LIMIT it cuts it - * in fragments - * - * WARNING: if some part of the input is discarded, this should return the - * proportional (so that - * returnValue/srcLen=compressionRatio) - * - * @param src - * @param srcOff - * @param srcLen - * @return length of the compressed bytes - */ - public int compressEstim(final byte[] src, int srcOff, final int srcLen) { - if (srcLen < 10) - return srcLen; // too small - int stride = DeflaterEstimatorLz4.LZ4_64K_LIMIT - 1; - final int segments = (srcLen + stride - 1) / stride; - stride = srcLen / segments; - if (stride >= DeflaterEstimatorLz4.LZ4_64K_LIMIT - 1 || stride * segments > srcLen || segments < 1 || stride < 1) - throw new RuntimeException("?? " + srcLen); - int bytesIn = 0; - int bytesOut = 0; - int len = srcLen; - while (len > 0) { - if (len > stride) - len = stride; - bytesOut += DeflaterEstimatorLz4.compress64k(src, srcOff, len); - srcOff += len; - bytesIn += len; - len = srcLen - bytesIn; - } - final double ratio = bytesOut / (double) bytesIn; - return bytesIn == srcLen ? bytesOut : (int) (ratio * srcLen + 0.5); - } - - public int compressEstim(final byte[] src) { - return compressEstim(src, 0, src.length); - } - - static final ByteOrder NATIVE_BYTE_ORDER = ByteOrder.nativeOrder(); - - static final int MEMORY_USAGE = 14; - static final int NOT_COMPRESSIBLE_DETECTION_LEVEL = 6; - - static final int MIN_MATCH = 4; - - static final int HASH_LOG = DeflaterEstimatorLz4.MEMORY_USAGE - 2; - static final int HASH_TABLE_SIZE = 1 << DeflaterEstimatorLz4.HASH_LOG; - - static final int SKIP_STRENGTH = Math.max(DeflaterEstimatorLz4.NOT_COMPRESSIBLE_DETECTION_LEVEL, 2); - static final int COPY_LENGTH = 8; - static final int LAST_LITERALS = 5; - static final int MF_LIMIT = DeflaterEstimatorLz4.COPY_LENGTH + DeflaterEstimatorLz4.MIN_MATCH; - static final int MIN_LENGTH = DeflaterEstimatorLz4.MF_LIMIT + 1; - - static final int MAX_DISTANCE = 1 << 16; - - static final int ML_BITS = 4; - static final int ML_MASK = (1 << DeflaterEstimatorLz4.ML_BITS) - 1; - static final int RUN_BITS = 8 - DeflaterEstimatorLz4.ML_BITS; - static final int RUN_MASK = (1 << DeflaterEstimatorLz4.RUN_BITS) - 1; - - static final int LZ4_64K_LIMIT = (1 << 16) + DeflaterEstimatorLz4.MF_LIMIT - 1; - static final int HASH_LOG_64K = DeflaterEstimatorLz4.HASH_LOG + 1; - static final int HASH_TABLE_SIZE_64K = 1 << DeflaterEstimatorLz4.HASH_LOG_64K; - - static final int HASH_LOG_HC = 15; - static final int HASH_TABLE_SIZE_HC = 1 << DeflaterEstimatorLz4.HASH_LOG_HC; - static final int OPTIMAL_ML = DeflaterEstimatorLz4.ML_MASK - 1 + DeflaterEstimatorLz4.MIN_MATCH; - - static int compress64k(final byte[] src, final int srcOff, final int srcLen) { - final int srcEnd = srcOff + srcLen; - final int srcLimit = srcEnd - DeflaterEstimatorLz4.LAST_LITERALS; - final int mflimit = srcEnd - DeflaterEstimatorLz4.MF_LIMIT; - - int sOff = srcOff, dOff = 0; - - int anchor = sOff; - - if (srcLen >= DeflaterEstimatorLz4.MIN_LENGTH) { - - final short[] hashTable = new short[DeflaterEstimatorLz4.HASH_TABLE_SIZE_64K]; - - ++sOff; - - main: while (true) { - - // find a match - int forwardOff = sOff; - - int ref; - int findMatchAttempts = (1 << DeflaterEstimatorLz4.SKIP_STRENGTH) + 3; - do { - sOff = forwardOff; - forwardOff += findMatchAttempts++ >>> DeflaterEstimatorLz4.SKIP_STRENGTH; - - if (forwardOff > mflimit) - break main; - - final int h = DeflaterEstimatorLz4.hash64k(DeflaterEstimatorLz4.readInt(src, sOff)); - ref = srcOff + DeflaterEstimatorLz4.readShort(hashTable, h); - DeflaterEstimatorLz4.writeShort(hashTable, h, sOff - srcOff); - } while (!DeflaterEstimatorLz4.readIntEquals(src, ref, sOff)); - - // catch up - final int excess = DeflaterEstimatorLz4.commonBytesBackward(src, ref, sOff, srcOff, anchor); - sOff -= excess; - ref -= excess; - // sequence == refsequence - final int runLen = sOff - anchor; - dOff++; - - if (runLen >= DeflaterEstimatorLz4.RUN_MASK) { - if (runLen > DeflaterEstimatorLz4.RUN_MASK) - dOff += (runLen - DeflaterEstimatorLz4.RUN_MASK) / 0xFF; - dOff++; - } - dOff += runLen; - while (true) { - // encode offset - dOff += 2; - // count nb matches - sOff += DeflaterEstimatorLz4.MIN_MATCH; - ref += DeflaterEstimatorLz4.MIN_MATCH; - final int matchLen = DeflaterEstimatorLz4.commonBytes(src, ref, sOff, srcLimit); - sOff += matchLen; - // encode match len - if (matchLen >= DeflaterEstimatorLz4.ML_MASK) { - if (matchLen >= DeflaterEstimatorLz4.ML_MASK + 0xFF) - dOff += (matchLen - DeflaterEstimatorLz4.ML_MASK) / 0xFF; - dOff++; - } - // test end of chunk - if (sOff > mflimit) { - anchor = sOff; - break main; - } - // fill table - DeflaterEstimatorLz4.writeShort(hashTable, DeflaterEstimatorLz4.hash64k(DeflaterEstimatorLz4.readInt(src, sOff - 2)), sOff - 2 - srcOff); - // test next position - final int h = DeflaterEstimatorLz4.hash64k(DeflaterEstimatorLz4.readInt(src, sOff)); - ref = srcOff + DeflaterEstimatorLz4.readShort(hashTable, h); - DeflaterEstimatorLz4.writeShort(hashTable, h, sOff - srcOff); - if (!DeflaterEstimatorLz4.readIntEquals(src, sOff, ref)) - break; - dOff++; - } - // prepare next loop - anchor = sOff++; - } - } - final int runLen = srcEnd - anchor; - if (runLen >= DeflaterEstimatorLz4.RUN_MASK + 0xFF) - dOff += (runLen - DeflaterEstimatorLz4.RUN_MASK) / 0xFF; - dOff++; - dOff += runLen; - return dOff; - } - - static int maxCompressedLength(final int length) { - if (length < 0) - throw new IllegalArgumentException("length must be >= 0, got " + length); - return length + length / 255 + 16; - } - - static int hash(final int i) { - return i * -1640531535 >>> DeflaterEstimatorLz4.MIN_MATCH * 8 - DeflaterEstimatorLz4.HASH_LOG; - } - - static int hash64k(final int i) { - return i * -1640531535 >>> DeflaterEstimatorLz4.MIN_MATCH * 8 - DeflaterEstimatorLz4.HASH_LOG_64K; - } - - static int readShortLittleEndian(final byte[] buf, final int i) { - return buf[i] & 0xFF | (buf[i + 1] & 0xFF) << 8; - } - - static boolean readIntEquals(final byte[] buf, final int i, final int j) { - return buf[i] == buf[j] && buf[i + 1] == buf[j + 1] && buf[i + 2] == buf[j + 2] && buf[i + 3] == buf[j + 3]; - } - - static int commonBytes(final byte[] b, int o1, int o2, final int limit) { - int count = 0; - while (o2 < limit && b[o1++] == b[o2++]) - ++count; - return count; - } - - static int commonBytesBackward(final byte[] b, int o1, int o2, final int l1, final int l2) { - int count = 0; - while (o1 > l1 && o2 > l2 && b[--o1] == b[--o2]) - ++count; - return count; - } - - static int readShort(final short[] buf, final int off) { - return buf[off] & 0xFFFF; - } - - static byte readByte(final byte[] buf, final int i) { - return buf[i]; - } - - static void checkRange(final byte[] buf, final int off) { - if (off < 0 || off >= buf.length) - throw new ArrayIndexOutOfBoundsException(off); - } - - static void checkRange(final byte[] buf, final int off, final int len) { - DeflaterEstimatorLz4.checkLength(len); - if (len > 0) { - DeflaterEstimatorLz4.checkRange(buf, off); - DeflaterEstimatorLz4.checkRange(buf, off + len - 1); - } - } - - static void checkLength(final int len) { - if (len < 0) - throw new IllegalArgumentException("lengths must be >= 0"); - } - - static int readIntBE(final byte[] buf, final int i) { - return (buf[i] & 0xFF) << 24 | (buf[i + 1] & 0xFF) << 16 | (buf[i + 2] & 0xFF) << 8 | buf[i + 3] & 0xFF; - } - - static int readIntLE(final byte[] buf, final int i) { - return buf[i] & 0xFF | (buf[i + 1] & 0xFF) << 8 | (buf[i + 2] & 0xFF) << 16 | (buf[i + 3] & 0xFF) << 24; - } - - static int readInt(final byte[] buf, final int i) { - if (DeflaterEstimatorLz4.NATIVE_BYTE_ORDER == ByteOrder.BIG_ENDIAN) - return DeflaterEstimatorLz4.readIntBE(buf, i); - else - return DeflaterEstimatorLz4.readIntLE(buf, i); - } - - static void writeShort(final short[] buf, final int off, final int v) { - buf[off] = (short) v; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/FiltersPerformance.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/FiltersPerformance.java deleted file mode 100644 index bf35aa4..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/FiltersPerformance.java +++ /dev/null @@ -1,208 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -import java.util.Arrays; - -import ar.com.hjg.pngj.FilterType; -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjExceptionInternal; - -/** for use in adaptative strategy */ -public class FiltersPerformance { - - private final ImageInfo iminfo; - private double memoryA = 0.7; // empirical (not very critical: 0.72) - private int lastrow = -1; - private final double[] absum = new double[5];// depending on the strategy not all values might be - // computed for all - private final double[] entropy = new double[5]; - private final double[] cost = new double[5]; - private final int[] histog = new int[256]; // temporary, not normalized - private int lastprefered = -1; - private boolean initdone = false; - private double preferenceForNone = 1.0; // higher gives more preference to NONE - - // this values are empirical (montecarlo), for RGB8 images with entropy estimator for NONE and - // memory=0.7 - // DONT MODIFY THIS - public static final double[] FILTER_WEIGHTS_DEFAULT = { 0.73, 1.03, 0.97, 1.11, 1.22 }; // lower is - // better! - - private final double[] filter_weights = new double[] { -1, -1, -1, -1, -1 }; - - private final static double LOG2NI = -1.0 / Math.log(2.0); - - public FiltersPerformance(final ImageInfo imgInfo) { - iminfo = imgInfo; - } - - private void init() { - if (filter_weights[0] < 0) {// has not been set from outside - System.arraycopy(FiltersPerformance.FILTER_WEIGHTS_DEFAULT, 0, filter_weights, 0, 5); - double wNone = filter_weights[0]; - if (iminfo.bitDepth == 16) - wNone = 1.2; - else if (iminfo.alpha) - wNone = 0.8; - else if (iminfo.indexed || iminfo.bitDepth < 8) - wNone = 0.4; // we prefer NONE strongly - wNone /= preferenceForNone; - filter_weights[0] = wNone; - } - Arrays.fill(cost, 1.0); - initdone = true; - } - - public void updateFromFiltered(final FilterType ftype, final byte[] rowff, final int rown) { - updateFromRawOrFiltered(ftype, rowff, null, null, rown); - } - - /** alternative: computes statistic without filtering */ - public void updateFromRaw(final FilterType ftype, final byte[] rowb, final byte[] rowbprev, final int rown) { - updateFromRawOrFiltered(ftype, null, rowb, rowbprev, rown); - } - - private void updateFromRawOrFiltered(final FilterType ftype, final byte[] rowff, final byte[] rowb, - final byte[] rowbprev, final int rown) { - if (!initdone) - init(); - if (rown != lastrow) { - Arrays.fill(absum, Double.NaN); - Arrays.fill(entropy, Double.NaN); - } - lastrow = rown; - if (rowff != null) - computeHistogram(rowff); - else - computeHistogramForFilter(ftype, rowb, rowbprev); - if (ftype == FilterType.FILTER_NONE) - entropy[ftype.val] = computeEntropyFromHistogram(); - else - absum[ftype.val] = computeAbsFromHistogram(); - } - - /* WARNING: this is not idempotent, call it just once per cycle (sigh) */ - public FilterType getPreferred() { - int fi = 0; - double vali = Double.MAX_VALUE, val = 0; // lower wins - for (int i = 0; i < 5; i++) { - if (!Double.isNaN(absum[i])) - val = absum[i]; - else if (!Double.isNaN(entropy[i])) - val = (Math.pow(2.0, entropy[i]) - 1.0) * 0.5; - else - continue; - val *= filter_weights[i]; - val = cost[i] * memoryA + (1 - memoryA) * val; - cost[i] = val; - if (val < vali) { - vali = val; - fi = i; - } - } - lastprefered = fi; - return FilterType.getByVal(lastprefered); - } - - public final void computeHistogramForFilter(final FilterType filterType, final byte[] rowb, final byte[] rowbprev) { - Arrays.fill(histog, 0); - int i, j; - final int imax = iminfo.bytesPerRow; - switch (filterType) { - case FILTER_NONE: - for (i = 1; i <= imax; i++) - histog[rowb[i] & 0xFF]++; - break; - case FILTER_PAETH: - for (i = 1; i <= imax; i++) - histog[PngHelperInternal.filterRowPaeth(rowb[i], 0, rowbprev[i] & 0xFF, 0)]++; - for (j = 1, i = iminfo.bytesPixel + 1; i <= imax; i++, j++) - histog[PngHelperInternal.filterRowPaeth(rowb[i], rowb[j] & 0xFF, rowbprev[i] & 0xFF, rowbprev[j] & 0xFF)]++; - break; - case FILTER_SUB: - for (i = 1; i <= iminfo.bytesPixel; i++) - histog[rowb[i] & 0xFF]++; - for (j = 1, i = iminfo.bytesPixel + 1; i <= imax; i++, j++) - histog[rowb[i] - rowb[j] & 0xFF]++; - break; - case FILTER_UP: - for (i = 1; i <= iminfo.bytesPerRow; i++) - histog[rowb[i] - rowbprev[i] & 0xFF]++; - break; - case FILTER_AVERAGE: - for (i = 1; i <= iminfo.bytesPixel; i++) - histog[(rowb[i] & 0xFF) - (rowbprev[i] & 0xFF) / 2 & 0xFF]++; - for (j = 1, i = iminfo.bytesPixel + 1; i <= imax; i++, j++) - histog[(rowb[i] & 0xFF) - ((rowbprev[i] & 0xFF) + (rowb[j] & 0xFF)) / 2 & 0xFF]++; - break; - default: - throw new PngjExceptionInternal("Bad filter:" + filterType); - } - } - - public void computeHistogram(final byte[] rowff) { - Arrays.fill(histog, 0); - for (int i = 1; i < iminfo.bytesPerRow; i++) - histog[rowff[i] & 0xFF]++; - } - - public double computeAbsFromHistogram() { - int s = 0; - for (int i = 1; i < 128; i++) - s += histog[i] * i; - for (int i = 128, j = 128; j > 0; i++, j--) - s += histog[i] * j; - return s / (double) iminfo.bytesPerRow; - } - - public final double computeEntropyFromHistogram() { - final double s = 1.0 / iminfo.bytesPerRow; - final double ls = Math.log(s); - - double h = 0; - for (final int x : histog) - if (x > 0) - h += (Math.log(x) + ls) * x; - h *= s * FiltersPerformance.LOG2NI; - if (h < 0.0) - h = 0.0; - return h; - } - - /** - * If larger than 1.0, NONE will be more prefered. This must be called - * before init - * - * @param preferenceForNone - * around 1.0 (default: 1.0) - */ - public void setPreferenceForNone(final double preferenceForNone) { - this.preferenceForNone = preferenceForNone; - } - - /** - * Values greater than 1.0 (towards infinite) increase the memory towards 1. - * Values smaller than 1.0 (towards zero) - * decreases the memory . - * - */ - public void tuneMemory(final double m) { - if (m == 0) - memoryA = 0.0; - else - memoryA = Math.pow(memoryA, 1.0 / m); - } - - /** - * To set manually the filter weights. This is not recommended, unless you - * know what you are doing. Setting this - * ignores preferenceForNone and omits some heuristics - * - * @param weights - * Five doubles around 1.0, one for each filter type. Lower is - * preferered - */ - public void setFilterWeights(final double[] weights) { - System.arraycopy(weights, 0, filter_weights, 0, 5); - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriter.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriter.java deleted file mode 100644 index 9ab9511..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriter.java +++ /dev/null @@ -1,272 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -import java.io.OutputStream; -import java.util.zip.Deflater; - -import ar.com.hjg.pngj.FilterType; -import ar.com.hjg.pngj.IDatChunkWriter; -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngHelperInternal; -import ar.com.hjg.pngj.PngjOutputException; - -/** - * Encodes a set of rows (pixels) as a continuous deflated stream (does not know - * about IDAT chunk segmentation). - *

- * This includes the filter selection strategy, plus the filtering itself and - * the deflating. Only supports fixed length - * rows (no interlaced writing). - *

- * Typically an instance of this is hold by a PngWriter - but more instances - * could be used (for APGN) - */ -public abstract class PixelsWriter { - - private static final int IDAT_MAX_SIZE_DEFAULT = 32000; - - protected final ImageInfo imgInfo; - /** - * row buffer length, including filter byte (imgInfo.bytesPerRow + 1) - */ - protected final int buflen; - - protected final int bytesPixel; - protected final int bytesRow; - - private CompressorStream compressorStream; // to compress the idat stream - - protected int deflaterCompLevel = 6; - protected int deflaterStrategy = Deflater.DEFAULT_STRATEGY; - - protected boolean initdone = false; - - /** - * This is the globally configured filter type - it can be a concrete type - * or a pseudo type (hint or strategy) - */ - protected FilterType filterType; - - // counts the filters used - just for stats - private final int[] filtersUsed = new int[5]; - - // this is the raw underlying os (shared with the PngWriter) - private OutputStream os; - - private int idatMaxSize = PixelsWriter.IDAT_MAX_SIZE_DEFAULT; - - /** - * row being processed, couting from zero - */ - protected int currentRow; - - public PixelsWriter(final ImageInfo imgInfo) { - this.imgInfo = imgInfo; - bytesRow = imgInfo.bytesPerRow; - buflen = bytesRow + 1; - bytesPixel = imgInfo.bytesPixel; - currentRow = -1; - filterType = FilterType.FILTER_DEFAULT; - } - - /** - * main internal point for external call. It does the lazy initializion if - * necessary, sets current row, and call - * {@link #filterAndWrite(byte[])} - */ - public final void processRow(final byte[] rowb) { - if (!initdone) - init(); - currentRow++; - filterAndWrite(rowb); - } - - protected void sendToCompressedStream(final byte[] rowf) { - compressorStream.write(rowf, 0, rowf.length); - filtersUsed[rowf[0]]++; - } - - /** - * This does the filtering and send to stream. Typically should decide the - * filtering, call - * {@link #filterRowWithFilterType(FilterType, byte[], byte[], byte[])} and - * and - * {@link #sendToCompressedStream(byte[])} - * - * @param rowb - */ - protected abstract void filterAndWrite(final byte[] rowb); - - /** - * Does the real filtering. This must be called with the real (standard) - * filterType. This should rarely be overriden. - *

- * WARNING: look out the contract - * - * @param _filterType - * @param _rowb - * current row (the first byte might be modified) - * @param _rowbprev - * previous row (should be all zero the first time) - * @param _rowf - * tentative buffer to store the filtered bytes. might not be - * used! - * @return normally _rowf, but eventually _rowb. This MUST NOT BE MODIFIED - * nor reused by caller - */ - final protected byte[] filterRowWithFilterType(final FilterType _filterType, final byte[] _rowb, - final byte[] _rowbprev, byte[] _rowf) { - // warning: some filters rely on: "previous row" (rowbprev) it must be initialized to 0 the - // first time - if (_filterType == FilterType.FILTER_NONE) - _rowf = _rowb; - _rowf[0] = (byte) _filterType.val; - int i, j; - switch (_filterType) { - case FILTER_NONE: - // we return the same original (be careful!) - break; - case FILTER_PAETH: - for (i = 1; i <= bytesPixel; i++) - _rowf[i] = (byte) PngHelperInternal.filterRowPaeth(_rowb[i], 0, _rowbprev[i] & 0xFF, 0); - for (j = 1, i = bytesPixel + 1; i <= bytesRow; i++, j++) - _rowf[i] = (byte) PngHelperInternal.filterRowPaeth(_rowb[i], _rowb[j] & 0xFF, _rowbprev[i] & 0xFF, _rowbprev[j] & 0xFF); - break; - case FILTER_SUB: - for (i = 1; i <= bytesPixel; i++) - _rowf[i] = _rowb[i]; - for (j = 1, i = bytesPixel + 1; i <= bytesRow; i++, j++) - _rowf[i] = (byte) (_rowb[i] - _rowb[j]); - break; - case FILTER_AVERAGE: - for (i = 1; i <= bytesPixel; i++) - _rowf[i] = (byte) (_rowb[i] - (_rowbprev[i] & 0xFF) / 2); - for (j = 1, i = bytesPixel + 1; i <= bytesRow; i++, j++) - _rowf[i] = (byte) (_rowb[i] - ((_rowbprev[i] & 0xFF) + (_rowb[j] & 0xFF)) / 2); - break; - case FILTER_UP: - for (i = 1; i <= bytesRow; i++) - _rowf[i] = (byte) (_rowb[i] - _rowbprev[i]); - break; - default: - throw new PngjOutputException("Filter type not recognized: " + _filterType); - } - return _rowf; - } - - /** - * This will be called by the PngWrite to fill the raw pixels for each row. - * This can change from call to call. - * Warning: this can be called before the object is init, implementations - * should call init() to be sure - */ - public abstract byte[] getRowb(); - - /** - * This will be called lazily just before writing row 0. Idempotent. - */ - protected final void init() { - if (!initdone) { - initParams(); - initdone = true; - } - } - - /** - * called by init(); override (calling this first) to do additional - * initialization - */ - protected void initParams() { - final IDatChunkWriter idatWriter = new IDatChunkWriter(os, idatMaxSize); - if (compressorStream == null) - compressorStream = new CompressorStreamDeflater(idatWriter, buflen, imgInfo.getTotalRawBytes(), deflaterCompLevel, deflaterStrategy); - } - - /** cleanup. This should be called explicitly. Idempotent and secure */ - public void close() { - if (compressorStream != null) - compressorStream.close(); - } - - /** - * Deflater (ZLIB) strategy. You should rarely change this from the default - * (Deflater.DEFAULT_STRATEGY) to - * Deflater.FILTERED (Deflater.HUFFMAN_ONLY is fast but compress poorly) - */ - public void setDeflaterStrategy(final Integer deflaterStrategy) { - this.deflaterStrategy = deflaterStrategy; - } - - /** - * Deflater (ZLIB) compression level, between 0 (no compression) and 9 - */ - public void setDeflaterCompLevel(final Integer deflaterCompLevel) { - this.deflaterCompLevel = deflaterCompLevel; - } - - public Integer getDeflaterCompLevel() { - return deflaterCompLevel; - } - - public final void setOs(final OutputStream datStream) { - os = datStream; - } - - public OutputStream getOs() { - return os; - } - - /** @see #filterType */ - final public FilterType getFilterType() { - return filterType; - } - - /** @see #filterType */ - final public void setFilterType(final FilterType filterType) { - this.filterType = filterType; - } - - /* out/in This should be called only after end() to get reliable results */ - public double getCompression() { - return compressorStream.isDone() ? compressorStream.getCompressionRatio() : 1.0; - } - - public void setCompressorStream(final CompressorStream compressorStream) { - this.compressorStream = compressorStream; - } - - public long getTotalBytesToWrite() { - return imgInfo.getTotalRawBytes(); - } - - public boolean isDone() { - return currentRow == imgInfo.rows - 1; - } - - /** - * computed default fixed filter type to use, if specified DEFAULT; wilde - * guess based on image properties - * - * @return One of the five concrete filter types - */ - protected FilterType getDefaultFilter() { - if (imgInfo.indexed || imgInfo.bitDepth < 8) - return FilterType.FILTER_NONE; - else if (imgInfo.getTotalPixels() < 1024) - return FilterType.FILTER_NONE; - else if (imgInfo.rows == 1) - return FilterType.FILTER_SUB; - else if (imgInfo.cols == 1) - return FilterType.FILTER_UP; - else - return FilterType.FILTER_PAETH; - } - - /** informational stats : filter used, in percentages */ - final public String getFiltersUsed() { - return String.format("%d,%d,%d,%d,%d", (int) (filtersUsed[0] * 100.0 / imgInfo.rows + 0.5), (int) (filtersUsed[1] * 100.0 / imgInfo.rows + 0.5), (int) (filtersUsed[2] * 100.0 / imgInfo.rows + 0.5), (int) (filtersUsed[3] * 100.0 / imgInfo.rows + 0.5), (int) (filtersUsed[4] * 100.0 / imgInfo.rows + 0.5)); - } - - public void setIdatMaxSize(final int idatMaxSize) { - this.idatMaxSize = idatMaxSize; - } -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriterDefault.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriterDefault.java deleted file mode 100644 index 00ffcec..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriterDefault.java +++ /dev/null @@ -1,158 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -import java.util.Arrays; - -import ar.com.hjg.pngj.FilterType; -import ar.com.hjg.pngj.ImageInfo; -import ar.com.hjg.pngj.PngjOutputException; - -/** - * Default implementation of PixelsWriter, with fixed filters and also adaptive - * strategies. - */ -public class PixelsWriterDefault extends PixelsWriter { - /** current raw row */ - protected byte[] rowb; - /** previous raw row */ - protected byte[] rowbprev; - /** buffer for filtered row */ - protected byte[] rowbfilter; - - /** evaluates different filters, for adaptive strategy */ - protected FiltersPerformance filtersPerformance; - - /** currently concrete selected filter type */ - protected FilterType curfilterType; - - /** parameters for adaptive strategy */ - protected int adaptMaxSkip; // set in initParams, does not change - protected int adaptSkipIncreaseSinceRow; // set in initParams, does not change - protected double adaptSkipIncreaseFactor; // set in initParams, does not change - protected int adaptNextRow = 0; - - public PixelsWriterDefault(final ImageInfo imgInfo) { - super(imgInfo); - filtersPerformance = new FiltersPerformance(imgInfo); - } - - @Override - protected void initParams() { - super.initParams(); - - if (rowb == null || rowb.length < buflen) - rowb = new byte[buflen]; - if (rowbfilter == null || rowbfilter.length < buflen) - rowbfilter = new byte[buflen]; - if (rowbprev == null || rowbprev.length < buflen) - rowbprev = new byte[buflen]; - else - Arrays.fill(rowbprev, (byte) 0); - - // if adaptative but too few rows or columns, use default - if (imgInfo.cols < 3 && !FilterType.isValidStandard(filterType)) - filterType = FilterType.FILTER_DEFAULT; - if (imgInfo.rows < 3 && !FilterType.isValidStandard(filterType)) - filterType = FilterType.FILTER_DEFAULT; - - if (imgInfo.getTotalPixels() <= 1024 && !FilterType.isValidStandard(filterType)) - filterType = getDefaultFilter(); - - if (FilterType.isAdaptive(filterType)) { - // adaptCurSkip = 0; - adaptNextRow = 0; - if (filterType == FilterType.FILTER_ADAPTIVE_FAST) { - adaptMaxSkip = 200; - adaptSkipIncreaseSinceRow = 3; - adaptSkipIncreaseFactor = 1 / 4.0; // skip ~ row/3 - } else if (filterType == FilterType.FILTER_ADAPTIVE_MEDIUM) { - adaptMaxSkip = 8; - adaptSkipIncreaseSinceRow = 32; - adaptSkipIncreaseFactor = 1 / 80.0; - } else if (filterType == FilterType.FILTER_ADAPTIVE_FULL) { - adaptMaxSkip = 0; - adaptSkipIncreaseSinceRow = 128; - adaptSkipIncreaseFactor = 1 / 120.0; - } else - throw new PngjOutputException("bad filter " + filterType); - } - } - - @Override - protected void filterAndWrite(final byte[] rowb) { - if (rowb != this.rowb) - throw new RuntimeException("??"); // we rely on this - decideCurFilterType(); - final byte[] filtered = filterRowWithFilterType(curfilterType, rowb, rowbprev, rowbfilter); - sendToCompressedStream(filtered); - // swap rowb <-> rowbprev - final byte[] aux = this.rowb; - this.rowb = rowbprev; - rowbprev = aux; - } - - protected void decideCurFilterType() { - // decide the real filter and store in curfilterType - if (FilterType.isValidStandard(getFilterType())) - curfilterType = getFilterType(); - else if (getFilterType() == FilterType.FILTER_PRESERVE) - curfilterType = FilterType.getByVal(rowb[0]); - else if (getFilterType() == FilterType.FILTER_CYCLIC) - curfilterType = FilterType.getByVal(currentRow % 5); - else if (getFilterType() == FilterType.FILTER_DEFAULT) { - setFilterType(getDefaultFilter()); - curfilterType = getFilterType(); // this could be done once - } else if (FilterType.isAdaptive(getFilterType())) {// adaptive - if (currentRow == adaptNextRow) { - for (final FilterType ftype : FilterType.getAllStandard()) - filtersPerformance.updateFromRaw(ftype, rowb, rowbprev, currentRow); - curfilterType = filtersPerformance.getPreferred(); - int skip = currentRow >= adaptSkipIncreaseSinceRow ? (int) Math.round((currentRow - adaptSkipIncreaseSinceRow) * adaptSkipIncreaseFactor) : 0; - if (skip > adaptMaxSkip) - skip = adaptMaxSkip; - if (currentRow == 0) - skip = 0; - adaptNextRow = currentRow + 1 + skip; - } - } else - throw new PngjOutputException("not implemented filter: " + getFilterType()); - if (currentRow == 0 && curfilterType != FilterType.FILTER_NONE && curfilterType != FilterType.FILTER_SUB) - curfilterType = FilterType.FILTER_SUB; // first row should always be none or sub - } - - @Override - public byte[] getRowb() { - if (!initdone) - init(); - return rowb; - } - - @Override - public void close() { - super.close(); - } - - /** - * Only for adaptive strategies. See - * {@link FiltersPerformance#setPreferenceForNone(double)} - */ - public void setPreferenceForNone(final double preferenceForNone) { - filtersPerformance.setPreferenceForNone(preferenceForNone); - } - - /** - * Only for adaptive strategies. See - * {@link FiltersPerformance#tuneMemory(double)} - */ - public void tuneMemory(final double m) { - filtersPerformance.tuneMemory(m); - } - - /** - * Only for adaptive strategies. See - * {@link FiltersPerformance#setFilterWeights(double[])} - */ - public void setFilterWeights(final double[] weights) { - filtersPerformance.setFilterWeights(weights); - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriterMultiple.java b/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriterMultiple.java deleted file mode 100644 index bf36c12..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/PixelsWriterMultiple.java +++ /dev/null @@ -1,230 +0,0 @@ -package ar.com.hjg.pngj.pixels; - -import java.util.LinkedList; -import java.util.zip.Deflater; - -import ar.com.hjg.pngj.FilterType; -import ar.com.hjg.pngj.ImageInfo; - -/** Special pixels writer for experimental super adaptive strategy */ -public class PixelsWriterMultiple extends PixelsWriter { - /** - * unfiltered rowsperband elements, 0 is the current (rowb). This should - * include all rows of current band, plus one - */ - protected LinkedList rows; - - /** - * bank of compressor estimators, one for each filter and (perhaps) an - * adaptive strategy - */ - protected CompressorStream[] filterBank = new CompressorStream[6]; - /** - * stored filtered rows, one for each filter (0=none is not allocated but - * linked) - */ - protected byte[][] filteredRows = new byte[5][]; - protected byte[] filteredRowTmp; // - - protected FiltersPerformance filtersPerf; - protected int rowsPerBand = 0; // This is a 'nominal' size - protected int rowsPerBandCurrent = 0; // lastRowInThisBand-firstRowInThisBand +1 : might be - // smaller than rowsPerBand - protected int rowInBand = -1; - protected int bandNum = -1; - protected int firstRowInThisBand, lastRowInThisBand; - private boolean tryAdaptive = true; - - protected static final int HINT_MEMORY_DEFAULT_KB = 100; - // we will consume about (not more than) this memory (in buffers, not counting the compressors) - protected int hintMemoryKb = PixelsWriterMultiple.HINT_MEMORY_DEFAULT_KB; - - private int hintRowsPerBand = 1000; // default: very large number, can be changed - - private boolean useLz4 = true; - - public PixelsWriterMultiple(final ImageInfo imgInfo) { - super(imgInfo); - filtersPerf = new FiltersPerformance(imgInfo); - rows = new LinkedList<>(); - for (int i = 0; i < 2; i++) - rows.add(new byte[buflen]); // we preallocate 2 rows (rowb and rowbprev) - filteredRowTmp = new byte[buflen]; - } - - @Override - protected void filterAndWrite(final byte[] rowb) { - if (!initdone) - init(); - if (rowb != rows.get(0)) - throw new RuntimeException("?"); - setBandFromNewRown(); - final byte[] rowbprev = rows.get(1); - for (final FilterType ftype : FilterType.getAllStandardNoneLast()) { - // this has a special behaviour for NONE: filteredRows[0] is null, and the returned value is - // rowb - if (currentRow == 0 && ftype != FilterType.FILTER_NONE && ftype != FilterType.FILTER_SUB) - continue; - final byte[] filtered = filterRowWithFilterType(ftype, rowb, rowbprev, filteredRows[ftype.val]); - filterBank[ftype.val].write(filtered); - if (currentRow == 0 && ftype == FilterType.FILTER_SUB) { // litle lie, only for first row - filterBank[FilterType.FILTER_PAETH.val].write(filtered); - filterBank[FilterType.FILTER_AVERAGE.val].write(filtered); - filterBank[FilterType.FILTER_UP.val].write(filtered); - } - // adptive: report each filterted - if (tryAdaptive) - filtersPerf.updateFromFiltered(ftype, filtered, currentRow); - } - filteredRows[0] = rowb; - if (tryAdaptive) { - final FilterType preferredAdaptive = filtersPerf.getPreferred(); - filterBank[5].write(filteredRows[preferredAdaptive.val]); - } - if (currentRow == lastRowInThisBand) { - final int best = getBestCompressor(); - // PngHelperInternal.debug("won: " + best + " (rows: " + firstRowInThisBand + ":" + lastRowInThisBand + ")"); - // if(currentRow>90&¤tRow<100) - // PngHelperInternal.debug(String.format("row=%d ft=%s",currentRow,FilterType.getByVal(best))); - final byte[] filtersAdapt = filterBank[best].getFirstBytes(); - for (int r = firstRowInThisBand, i = 0, j = lastRowInThisBand - firstRowInThisBand; r <= lastRowInThisBand; r++, j--, i++) { - final int fti = filtersAdapt[i]; - byte[] filtered = null; - if (r != lastRowInThisBand) - filtered = filterRowWithFilterType(FilterType.getByVal(fti), rows.get(j), rows.get(j + 1), filteredRowTmp); - else - filtered = filteredRows[fti]; - sendToCompressedStream(filtered); - } - } - // rotate - if (rows.size() > rowsPerBandCurrent) - rows.addFirst(rows.removeLast()); - else - rows.addFirst(new byte[buflen]); - } - - @Override - public byte[] getRowb() { - return rows.get(0); - } - - private void setBandFromNewRown() { - final boolean newBand = currentRow == 0 || currentRow > lastRowInThisBand; - if (currentRow == 0) - bandNum = -1; - if (newBand) { - bandNum++; - rowInBand = 0; - } else - rowInBand++; - if (newBand) { - firstRowInThisBand = currentRow; - lastRowInThisBand = firstRowInThisBand + rowsPerBand - 1; - final int lastRowInNextBand = firstRowInThisBand + 2 * rowsPerBand - 1; - if (lastRowInNextBand >= imgInfo.rows) // hack:make this band bigger, so we don't have a small - // last band - lastRowInThisBand = imgInfo.rows - 1; - rowsPerBandCurrent = 1 + lastRowInThisBand - firstRowInThisBand; - tryAdaptive = rowsPerBandCurrent <= 3 || rowsPerBandCurrent < 10 && imgInfo.bytesPerRow < 64 ? false : true; - // rebuild bank - rebuildFiltersBank(); - } - } - - private void rebuildFiltersBank() { - final long bytesPerBandCurrent = rowsPerBandCurrent * (long) buflen; - final int DEFLATER_COMP_LEVEL = 4; - for (int i = 0; i <= 5; i++) {// one for each filter plus one adaptive - CompressorStream cp = filterBank[i]; - if (cp == null || cp.totalbytes != bytesPerBandCurrent) { - if (cp != null) - cp.close(); - if (useLz4) - cp = new CompressorStreamLz4(null, buflen, bytesPerBandCurrent); - else - cp = new CompressorStreamDeflater(null, buflen, bytesPerBandCurrent, DEFLATER_COMP_LEVEL, Deflater.DEFAULT_STRATEGY); - filterBank[i] = cp; - } else - cp.reset(); - cp.setStoreFirstByte(true, rowsPerBandCurrent); // TODO: only for adaptive? - } - } - - private int computeInitialRowsPerBand() { - // memory (only buffers) ~ (r+1+5) * bytesPerRow - int r = (int) (hintMemoryKb * 1024.0 / (imgInfo.bytesPerRow + 1) - 5); - if (r < 1) - r = 1; - if (hintRowsPerBand > 0 && r > hintRowsPerBand) - r = hintRowsPerBand; - if (r > imgInfo.rows) - r = imgInfo.rows; - if (r > 2 && r > imgInfo.rows / 8) { // redistribute more evenly - final int k = (imgInfo.rows + r - 1) / r; - r = (imgInfo.rows + k / 2) / k; - } - // PngHelperInternal.debug("rows :" + r + "/" + imgInfo.rows); - return r; - } - - private int getBestCompressor() { - double bestcr = Double.MAX_VALUE; - int bestb = -1; - for (int i = tryAdaptive ? 5 : 4; i >= 0; i--) { - final CompressorStream fb = filterBank[i]; - final double cr = fb.getCompressionRatio(); - if (cr <= bestcr) { // dirty trick, here the equality gains for row 0, so that SUB is prefered - // over PAETH, UP, AVE... - bestb = i; - bestcr = cr; - } - } - return bestb; - } - - @Override - protected void initParams() { - super.initParams(); - // if adaptative but too few rows or columns, use default - if (imgInfo.cols < 3 && !FilterType.isValidStandard(filterType)) - filterType = FilterType.FILTER_DEFAULT; - if (imgInfo.rows < 3 && !FilterType.isValidStandard(filterType)) - filterType = FilterType.FILTER_DEFAULT; - for (int i = 1; i <= 4; i++) - if (filteredRows[i] == null || filteredRows[i].length < buflen) - filteredRows[i] = new byte[buflen]; - if (rowsPerBand == 0) - rowsPerBand = computeInitialRowsPerBand(); - } - - @Override - public void close() { - super.close(); - rows.clear(); - for (final CompressorStream f : filterBank) - f.close(); - } - - public void setHintMemoryKb(final int hintMemoryKb) { - this.hintMemoryKb = hintMemoryKb <= 0 ? PixelsWriterMultiple.HINT_MEMORY_DEFAULT_KB : hintMemoryKb > 10000 ? 10000 : hintMemoryKb; - } - - public void setHintRowsPerBand(final int hintRowsPerBand) { - this.hintRowsPerBand = hintRowsPerBand; - } - - public void setUseLz4(final boolean lz4) { - useLz4 = lz4; - } - - /** for tuning memory or other parameters */ - public FiltersPerformance getFiltersPerf() { - return filtersPerf; - } - - public void setTryAdaptive(final boolean tryAdaptive) { - this.tryAdaptive = tryAdaptive; - } - -} diff --git a/teavm/src/main/java/ar/com/hjg/pngj/pixels/package.html b/teavm/src/main/java/ar/com/hjg/pngj/pixels/package.html deleted file mode 100644 index 85bd6a0..0000000 --- a/teavm/src/main/java/ar/com/hjg/pngj/pixels/package.html +++ /dev/null @@ -1,14 +0,0 @@ - - -

-Mostly related with logic specific to reading/writing pixels. -

-

-Includes ImageLine related classes, and rows filtering -

-

-Some classes like ImageLineInt should belong here, but we keep them in the main package for backward compatibility. - -

- - diff --git a/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlEngine.java b/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlEngine.java index 28e4bc6..10b1881 100644 --- a/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlEngine.java +++ b/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlEngine.java @@ -119,7 +119,7 @@ public void create(final Runnable onInitialized) { HtmlEngine.document.getElementById("container").appendChild(canvas); HtmlEngine.document.getBody().appendChild(keyInput); keyInput.setTabIndex(0); - keyInput.setValue("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"); + keyInput.setValue(""); HtmlEngine.document.addEventListener("keydown", (final KeyboardEvent evt) -> { evt.preventDefault(); new Thread(() -> { diff --git a/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlSkin.java b/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlSkin.java index 19b291f..3909000 100644 --- a/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlSkin.java +++ b/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlSkin.java @@ -2,14 +2,19 @@ import java.io.IOException; import java.io.InputStream; -import java.net.URISyntaxException; +import org.apache.commons.lang3.ArrayUtils; import org.teavm.jso.browser.Window; +import org.teavm.jso.dom.events.Event; import org.teavm.jso.dom.html.HTMLDocument; import org.teavm.jso.dom.html.HTMLImageElement; -import ar.com.hjg.pngj.PngReader; import it.cavallium.warppi.Engine; +import it.cavallium.warppi.Platform.Semaphore; +import it.cavallium.warppi.flow.BehaviorSubject; +import it.cavallium.warppi.flow.SimpleSubject; +import it.cavallium.warppi.flow.Subject; +import it.cavallium.warppi.flow.ValueReference; import it.cavallium.warppi.gui.graphicengine.GraphicEngine; import it.cavallium.warppi.gui.graphicengine.Skin; @@ -38,22 +43,22 @@ public void use(final GraphicEngine d) { @Override public void load(String file) throws IOException { - if (!file.startsWith("/")) - file = "/" + file; - url = Engine.getPlatform().getStorageUtils().getBasePath() + file; - final InputStream stream = Engine.getPlatform().getStorageUtils().getResourceStream(file); - final PngReader r = new PngReader(stream); - skinSize = new int[] { r.imgInfo.cols, r.imgInfo.rows }; - r.close(); + url = Engine.getPlatform().getStorageUtils().getBasePath() + (!file.startsWith("/") ? "/" : "") + file; } @Override public void initialize(final GraphicEngine d) { final HTMLDocument doc = Window.current().getDocument(); + ValueReference done = new ValueReference(false); imgEl = doc.createElement("img").cast(); + imgEl.addEventListener("load", (Event e) -> { + done.value = true; + }); imgEl.setSrc(url); - imgEl.setClassName("hidden"); - doc.getBody().appendChild(imgEl); + while (!done.value) { + try {Thread.sleep(15);} catch (Exception e) {} + } + skinSize = new int[] { imgEl.getNaturalWidth(), imgEl.getNaturalHeight() }; initd = true; } diff --git a/teavm/src/main/java/it/cavallium/warppi/teavm/TeaVMImageReader.java b/teavm/src/main/java/it/cavallium/warppi/teavm/TeaVMImageReader.java index f0c1cff..20c4601 100644 --- a/teavm/src/main/java/it/cavallium/warppi/teavm/TeaVMImageReader.java +++ b/teavm/src/main/java/it/cavallium/warppi/teavm/TeaVMImageReader.java @@ -2,59 +2,22 @@ import java.io.InputStream; -import ar.com.hjg.pngj.ImageLineInt; import it.cavallium.warppi.Platform.ImageUtils.ImageReader; public class TeaVMImageReader implements ImageReader { - - private final ar.com.hjg.pngj.PngReader r; - + public TeaVMImageReader(final InputStream resourceStream) { - r = new ar.com.hjg.pngj.PngReader(resourceStream); + throw new RuntimeException("Not supported by this platform"); } @Override public int[] getImageMatrix() { - final int width = r.imgInfo.cols; - final int height = r.imgInfo.rows; - final int channels = r.imgInfo.channels; - final int[] pixels = new int[width * height]; - int pi = 0; - ImageLineInt lint; - while (r.hasMoreRows()) { - lint = (ImageLineInt) r.readRow(); - final int[] scanLine = lint.getScanline(); - - for (int i = 0; i < width; i++) { - final int offset = i * channels; - - // Adjust the following code depending on your source image. - // I need the to set the alpha channel to 0xFF000000 since my destination image - // is TRANSLUCENT : BufferedImage bi = CONFIG.createCompatibleImage( width, height, Transparency.TRANSLUCENT ); - // my source was 3 channels RGB without transparency - int nextPixel; - if (channels == 4) - nextPixel = scanLine[offset] << 16 | scanLine[offset + 1] << 8 | scanLine[offset + 2] | scanLine[offset + 3] << 24; - else if (channels == 3) - nextPixel = scanLine[offset] << 16 | scanLine[offset + 1] << 8 | scanLine[offset + 2] | 0xFF << 24; - else if (channels == 2) - nextPixel = scanLine[offset] << 16 | scanLine[offset + 1] << 8 | 0xFF | 0xFF << 24; - else - nextPixel = scanLine[offset] << 16 | scanLine[offset] << 8 | scanLine[offset] | 0xFF << 24; - - // I'm placing the pixels on a memory mapped file - pixels[pi] = nextPixel; - pi++; - } - - } - - return pixels; + throw new RuntimeException("Not supported by this platform"); } @Override public int[] getSize() { - return new int[] { r.imgInfo.cols, r.imgInfo.rows }; + throw new RuntimeException("Not supported by this platform"); } } diff --git a/teavm/src/main/java/it/cavallium/warppi/teavm/TeaVMSemaphore.java b/teavm/src/main/java/it/cavallium/warppi/teavm/TeaVMSemaphore.java index ae8f332..517dee8 100644 --- a/teavm/src/main/java/it/cavallium/warppi/teavm/TeaVMSemaphore.java +++ b/teavm/src/main/java/it/cavallium/warppi/teavm/TeaVMSemaphore.java @@ -5,9 +5,9 @@ public class TeaVMSemaphore implements it.cavallium.warppi.Platform.Semaphore { - private final Queue q; + private volatile Queue q; - private int freePermits = 0; + private volatile int freePermits = 0; public TeaVMSemaphore(final int i) { q = new LinkedList<>();