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Fix ImageIO for WIC & do a lot fewer image conversions in CGImage/CGContext. #1529

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Fix ImageIO for WIC & do a lot fewer image conversions in CGImage/CGContext. #1529

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7f203a1
When !buffer, convert CGBitmapContext's image on output.
DHowett Dec 9, 2016
e0a1531
Streamline ImageIO's image generator to use CGImage's WIC source+fmt.
DHowett Dec 9, 2016
32eb393
Add support for copying subregions from CGIWICBitmap.
DHowett Dec 12, 2016
a1f32dd
Update CGImage's Big List of Formats.
DHowett Dec 13, 2016
f8cce71
Use CGImage's WIC ingestor in CGImageSource. FIX TESTS.
DHowett Dec 13, 2016
830d03c
Fix CoreGraphics.Drawing's image loader & add a premul alpha test.
DHowett Dec 13, 2016
b769558
Fix some flawed CoreGraphics tests (wrong expected data).
DHowett Dec 13, 2016
2647ae3
Clean up some EXPECT/ASSERT/_MSG in ImageIO Tests.
DHowett Dec 13, 2016
bc63c8e
Fix the unpremultiplier to match Windows'.
DHowett Dec 14, 2016
bdc4c1f
CR Feedback (CGIWICBitmap)
DHowett Dec 14, 2016
d25a309
CR Feedback (Test Harness)
DHowett Dec 14, 2016
04f358c
Adjust some more image formats.
DHowett Dec 16, 2016
c1dfbce
More bitmap tests br0
DHowett Dec 16, 2016
3880bfd
Address more CGIWICBitmap.
DHowett Dec 16, 2016
51b0a38
c
DHowett Dec 16, 2016
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35 changes: 27 additions & 8 deletions Frameworks/CoreGraphics/CGContext.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -2145,12 +2145,19 @@ void CGContextDrawGlyphRun(CGContextRef context, const DWRITE_GLYPH_RUN* glyphRu
struct __CGBitmapContext : CoreFoundation::CppBase<__CGBitmapContext, __CGContext> {
woc::unique_cf<CGImageRef> _image;

__CGBitmapContext(ID2D1RenderTarget* renderTarget) : Parent(renderTarget) {
__CGBitmapContext(ID2D1RenderTarget* renderTarget, REFWICPixelFormatGUID outputPixelFormat) : Parent(renderTarget), _outputPixelFormat(outputPixelFormat) {
}

inline void SetImage(CGImageRef image) {
_image.reset(CGImageRetain(image));
}

inline REFWICPixelFormatGUID GetOutputPixelFormat() const {
return _outputPixelFormat;
}

private:
WICPixelFormatGUID _outputPixelFormat;
};

/**
Expand Down Expand Up @@ -2187,11 +2194,15 @@ CGContextRef CGBitmapContextCreateWithData(void* data,

// bitsperpixel = ((bytesPerRow/width) * 8bits/byte)
size_t bitsPerPixel = ((bytesPerRow / width) << 3);
REFGUID pixelFormat = _CGImageGetWICPixelFormatFromImageProperties(bitsPerComponent, bitsPerPixel, space, bitmapInfo);
REFWICPixelFormatGUID outputPixelFormat = _CGImageGetWICPixelFormatFromImageProperties(bitsPerComponent, bitsPerPixel, space, bitmapInfo);
WICPixelFormatGUID pixelFormat = outputPixelFormat;

if (!_CGIsValidRenderTargetPixelFormat(pixelFormat)) {
UNIMPLEMENTED_WITH_MSG("CGBitmapContext does not currently support conversion and can only render into 32bpp PRGBA buffers.");
return nullptr;
if (data) {
UNIMPLEMENTED_WITH_MSG("CGBitmapContext does not currently support input conversion and can only render into 32bpp PRGBA buffers.");
return nullptr;
}
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@aballway aballway Dec 13, 2016 •
edited by DHowett-MSFT
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super nit: add line after } #WontFix

pixelFormat = GUID_WICPixelFormat32bppPRGBA;
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@msft-Jeyaram msft-Jeyaram Dec 13, 2016 •
edited by DHowett-MSFT
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thanks. I think at one point we decided not to do this. It makes sense and is needed :) #Closed

}

// if data is null, enough memory is allocated via CGIWICBitmap
Expand All @@ -2206,7 +2217,8 @@ CGContextRef CGBitmapContextCreateWithData(void* data,

ComPtr<ID2D1RenderTarget> renderTarget;
RETURN_NULL_IF_FAILED(factory->CreateWicBitmapRenderTarget(customBitmap.Get(), D2D1::RenderTargetProperties(), &renderTarget));
return _CGBitmapContextCreateWithRenderTarget(renderTarget.Get(), image.get());
CGContextRef context = _CGBitmapContextCreateWithRenderTarget(renderTarget.Get(), image.get(), outputPixelFormat);
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@aballway aballway Dec 13, 2016 •
edited by DHowett-MSFT
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super nit: just return this #WontFix

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There may be additional things here acting on context.

In reply to: 92289253 [](ancestors = 92289253)

return context;
}

/**
Expand Down Expand Up @@ -2288,7 +2300,14 @@ size_t CGBitmapContextGetBytesPerRow(CGContextRef context) {
*/
CGImageRef CGBitmapContextCreateImage(CGContextRef context) {
NOISY_RETURN_IF_NULL(context, nullptr);
return CGImageCreateCopy(CGBitmapContextGetImage(context));
if (CFGetTypeID(context) != __CGBitmapContext::GetTypeID()) {
TraceError(TAG, L"Image requested from non-bitmap CGContext.");
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@aballway aballway Dec 13, 2016 •
edited by DHowett-MSFT
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nit: print name of what type it actually is for easier debugging #WontFix

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@DHowett-MSFT DHowett-MSFT Dec 13, 2016 •
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I think that's too much work (digging around in CF to map the type ID) #WontFix

return nullptr;
}

// This copy is a no-op if the output format requested matches the backing image format.
__CGBitmapContext* bitmapContext = (__CGBitmapContext*)context;
return _CGImageCreateCopyWithPixelFormat(bitmapContext->_image.get(), bitmapContext->GetOutputPixelFormat());
}

CGImageRef CGBitmapContextGetImage(CGContextRef context) {
Expand All @@ -2300,9 +2319,9 @@ CGImageRef CGBitmapContextGetImage(CGContextRef context) {
return ((__CGBitmapContext*)context)->_image.get();
}

CGContextRef _CGBitmapContextCreateWithRenderTarget(ID2D1RenderTarget* renderTarget, CGImageRef img) {
CGContextRef _CGBitmapContextCreateWithRenderTarget(ID2D1RenderTarget* renderTarget, CGImageRef img, WICPixelFormatGUID outputPixelFormat) {
RETURN_NULL_IF(!renderTarget);
__CGBitmapContext* context = __CGBitmapContext::CreateInstance(kCFAllocatorDefault, renderTarget);
__CGBitmapContext* context = __CGBitmapContext::CreateInstance(kCFAllocatorDefault, renderTarget, outputPixelFormat);
__CGContextPrepareDefaults(context);
context->SetImage(img);
return context;
Expand Down
36 changes: 14 additions & 22 deletions Frameworks/ImageIO/CGImageDestination.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@
#import <ImageIO/CGImageDestination.h>
#import "CGImageDestinationInternal.h"
#import <StubReturn.h>
#import <CGImageInternal.h>
#include <windows.h>
#include <string>

Expand Down Expand Up @@ -979,6 +980,14 @@ void CGImageDestinationAddImage(CGImageDestinationRef idst, CGImageRef image, CF
}
}

// Turn image into a WIC Bitmap
ComPtr<IWICBitmap> inputImage;
status = _CGImageGetWICImageSource(image, &inputImage);
if (!SUCCEEDED(status)) {
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@msft-Jeyaram msft-Jeyaram Dec 13, 2016 •
edited by DHowett-MSFT
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!SUCCEEDED [](start = 8, length = 10)

FAILED ? #WontFix

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@DHowett-MSFT DHowett-MSFT Dec 14, 2016 •
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There would be too much churn if I were to adjust the CC in this file. #WontFix

NSTraceInfo(TAG, @"_CGImageGetWICImageSource failed with status=%x\n", status);
return;
}

IWICMetadataQueryWriter* propertyWriter = imageFrameMetadataWriter.Get();

// Set the pixel format based on file format and write necessary metadata
Expand All @@ -998,7 +1007,11 @@ void CGImageDestinationAddImage(CGImageDestinationRef idst, CGImageRef image, CF
writeGIFProperties(propertyWriter, properties, imageWidth, imageHeight);
break;
case typePNG:
formatGUID = GUID_WICPixelFormat32bppRGBA;
status = inputImage->GetPixelFormat(&formatGUID);
if (!SUCCEEDED(status)) {
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@msft-Jeyaram msft-Jeyaram Dec 14, 2016 •
edited by DHowett-MSFT
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!SUCCEEDED [](start = 16, length = 10)

same here? #WontFix

NSTraceInfo(TAG, @"Get Image Source Pixel Format failed with status=%x\n", status);
return;
}
writePNGProperties(propertyWriter, properties, imageWidth, imageHeight);
break;
case typeBMP:
Expand All @@ -1015,27 +1028,6 @@ void CGImageDestinationAddImage(CGImageDestinationRef idst, CGImageRef image, CF
return;
}

CGDataProviderRef provider = CGImageGetDataProvider(image);
NSData* imageByteData = (id)CGDataProviderCopyData(provider);

// Turn image into a WIC Bitmap
ComPtr<IWICBitmap> inputImage;

// All our input coming in from CGImagesource is in 32bppRGBA
ComPtr<IWICImagingFactory> imageFactory = imageDestination.idFactory;
status = imageFactory->CreateBitmapFromMemory(imageWidth,
imageHeight,
GUID_WICPixelFormat32bppRGBA,
imageWidth * 4,
imageHeight * imageWidth * 4,
(unsigned char*)[imageByteData bytes],
&inputImage);
[imageByteData release];
if (!SUCCEEDED(status)) {
NSTraceInfo(TAG, @"CreateBitmapFromMemory failed with status=%x\n", status);
return;
}

ComPtr<IWICBitmapSource> inputBitmapSource;
status = WICConvertBitmapSource(formatGUID, inputImage.Get(), &inputBitmapSource);
if (!SUCCEEDED(status)) {
Expand Down
79 changes: 8 additions & 71 deletions Frameworks/ImageIO/CGImageSource.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@
#include <wrl/client.h>
#include "COMIncludes_End.h"

#import <CGImageInternal.h>

using namespace Microsoft::WRL;

static const wchar_t* TAG = L"CGImageSource";
Expand Down Expand Up @@ -1684,48 +1686,10 @@ CGImageRef CGImageSourceCreateImageAtIndex(CGImageSourceRef isrc, size_t index,
ComPtr<IWICBitmapFrameDecode> imageFrame;
RETURN_NULL_IF_FAILED(imageDecoder->GetFrame(index, &imageFrame));

unsigned int frameWidth = 0;
unsigned int frameHeight = 0;
RETURN_NULL_IF_FAILED(imageFrame->GetSize(&frameWidth, &frameHeight));

ComPtr<IWICFormatConverter> imageFormatConverter;
RETURN_NULL_IF_FAILED(imageFactory->CreateFormatConverter(&imageFormatConverter));

if (options && CFDictionaryContainsKey(options, kCGImageSourceShouldAllowFloat)) {
UNIMPLEMENTED_WITH_MSG("kCGImageSourceShouldAllowFloat is not supported in current implementation.");
}
ComPtr<IWICBitmap> imageBitmap;
RETURN_NULL_IF_FAILED(imageFactory->CreateBitmapFromSource(imageFrame.Get(), WICBitmapCacheOnDemand, &imageBitmap));

RETURN_NULL_IF_FAILED(imageFormatConverter->Initialize(
imageFrame.Get(), GUID_WICPixelFormat32bppRGBA, WICBitmapDitherTypeNone, nullptr, 0.f, WICBitmapPaletteTypeCustom));

const unsigned int frameSize = frameWidth * frameHeight * 4;
unsigned char* frameByteArray = static_cast<unsigned char*>(IwMalloc(frameSize));
if (!frameByteArray) {
NSTraceInfo(TAG, @"CGImageSourceCreateImageAtIndex cannot allocate memory");
return nullptr;
}

auto cleanup = wil::ScopeExit([&]() { IwFree(frameByteArray); });
RETURN_NULL_IF_FAILED(imageFormatConverter->CopyPixels(0, frameWidth * 4, frameSize, frameByteArray));
cleanup.Dismiss();

NSData* frameData = [NSData dataWithBytesNoCopy:frameByteArray length:frameSize freeWhenDone:YES];
CGDataProviderRef frameDataProvider = CGDataProviderCreateWithCFData((CFDataRef)frameData);
CGColorSpaceRef colorspaceRgb = CGColorSpaceCreateDeviceRGB();
CGImageRef imageRef = CGImageCreate(frameWidth,
frameHeight,
8,
32,
frameWidth * 4,
colorspaceRgb,
kCGImageAlphaLast,
frameDataProvider,
nullptr,
true,
kCGRenderingIntentDefault);
CGDataProviderRelease(frameDataProvider);
CGColorSpaceRelease(colorspaceRgb);
return imageRef;
return _CGImageCreateWithWICBitmap(imageBitmap.Get());
}

/**
Expand Down Expand Up @@ -1825,37 +1789,10 @@ CGImageRef CGImageSourceCreateThumbnailAtIndex(CGImageSourceRef isrc, size_t ind
UNIMPLEMENTED_WITH_MSG("kCGImageSourceShouldAllowFloat is not supported in current implementation.");
}

RETURN_NULL_IF_FAILED(imageFormatConverter->Initialize(
imageScaler.Get(), GUID_WICPixelFormat32bppRGBA, WICBitmapDitherTypeNone, nullptr, 0.f, WICBitmapPaletteTypeCustom));

const unsigned int thumbnailSize = thumbnailWidth * thumbnailHeight * 4;
unsigned char* thumbnailByteArray = static_cast<unsigned char*>(IwMalloc(thumbnailSize));
if (!thumbnailByteArray) {
NSTraceInfo(TAG, @"CGImageSourceCreateThumbnailAtIndex cannot allocate memory");
return nullptr;
}
ComPtr<IWICBitmap> imageBitmap;
RETURN_NULL_IF_FAILED(imageFactory->CreateBitmapFromSource(imageScaler.Get(), WICBitmapCacheOnDemand, &imageBitmap));

auto cleanup = wil::ScopeExit([&]() { IwFree(thumbnailByteArray); });
RETURN_NULL_IF_FAILED(imageFormatConverter->CopyPixels(0, thumbnailWidth * 4, thumbnailSize, thumbnailByteArray));
cleanup.Dismiss();

NSData* thumbnailData = [NSData dataWithBytesNoCopy:thumbnailByteArray length:thumbnailSize freeWhenDone:YES];
CGDataProviderRef thumbnailDataProvider = CGDataProviderCreateWithCFData((CFDataRef)thumbnailData);
CGColorSpaceRef colorspaceRgb = CGColorSpaceCreateDeviceRGB();
CGImageRef imageRef = CGImageCreate(thumbnailWidth,
thumbnailHeight,
8,
32,
thumbnailWidth * 4,
colorspaceRgb,
kCGImageAlphaLast,
thumbnailDataProvider,
nullptr,
true,
kCGRenderingIntentDefault);
CGDataProviderRelease(thumbnailDataProvider);
CGColorSpaceRelease(colorspaceRgb);
return imageRef;
return _CGImageCreateWithWICBitmap(imageBitmap.Get());
}

/**
Expand Down
2 changes: 1 addition & 1 deletion Frameworks/QuartzCore/CALayer.mm
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Expand Up @@ -317,7 +317,7 @@ CGContextRef CreateLayerContentsBitmapContext32(int width, int height, float sca
RETURN_NULL_IF_FAILED(factory->CreateWicBitmapRenderTarget(customWICBtmap.Get(), D2D1::RenderTargetProperties(), &renderTarget));
renderTarget->SetDpi(c_windowsDPI * scale, c_windowsDPI * scale);

return _CGBitmapContextCreateWithRenderTarget(renderTarget.Get(), image.get());
return _CGBitmapContextCreateWithRenderTarget(renderTarget.Get(), image.get(), GUID_WICPixelFormat32bppPBGRA);
}

return nullptr;
Expand Down
3 changes: 2 additions & 1 deletion Frameworks/include/CGContextInternal.h
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Expand Up @@ -22,6 +22,7 @@
#include <COMIncludes.h>
#import <DWrite.h>
#import <D2d1.h>
#import <wincodec.h>
#include <COMIncludes_End.h>

#import "CoreGraphicsInternal.h"
Expand All @@ -40,6 +41,6 @@ COREGRAPHICS_EXPORT bool CGContextIsPointInPath(CGContextRef c, bool eoFill, flo
COREGRAPHICS_EXPORT void CGContextDrawGlyphRun(CGContextRef ctx, const DWRITE_GLYPH_RUN* glyphRun);

// Bitmap Context Internal
COREGRAPHICS_EXPORT CGContextRef _CGBitmapContextCreateWithRenderTarget(ID2D1RenderTarget* renderTarget, CGImageRef img = nullptr);
COREGRAPHICS_EXPORT CGContextRef _CGBitmapContextCreateWithRenderTarget(ID2D1RenderTarget* renderTarget, CGImageRef img, WICPixelFormatGUID outputPixelFormat);
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@rajsesh rajsesh Dec 16, 2016 •
edited by DHowett-MSFT
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nit: bitmapPixelFormat might be more accurate name (i suppose outputPixelFormat means the pixel format output by the bitmap render target. Okay with current name though. #WontFix

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output captures it better: it's not the input format in the user-provided data :)

In reply to: 92748140 [](ancestors = 92748140)

COREGRAPHICS_EXPORT CGContextRef _CGBitmapContextCreateWithFormat(int width, int height, __CGSurfaceFormat fmt);
COREGRAPHICS_EXPORT CGImageRef CGBitmapContextGetImage(CGContextRef ctx);
31 changes: 25 additions & 6 deletions Frameworks/include/CGIWICBitmap.h
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Expand Up @@ -152,7 +152,7 @@ class CGIWICBitmap : public Microsoft::WRL::RuntimeClass<Microsoft::WRL::Runtime
}

// IWICBitmap interface
// TODO #1124: Today we do not support locking a region of the WIC bitmap for rendering. We only support locking the complete bitmap.
// TODO #1379: Today we do not support locking of a region smaller than the entire bitmap.
// This will suffice CoreText requirement but needs to be revisted for CoreGraphics usage in future.

HRESULT STDMETHODCALLTYPE Lock(_In_ const WICRect* region, _In_ DWORD flags, _COM_Outptr_ IWICBitmapLock** outLock) {
Expand Down Expand Up @@ -187,17 +187,36 @@ class CGIWICBitmap : public Microsoft::WRL::RuntimeClass<Microsoft::WRL::Runtime
_Out_writes_all_(cbBufferSize) BYTE* buffer) {
RETURN_HR_IF_NULL(E_POINTER, buffer);

const WICRect fullRect = { 0, 0, m_width, m_height };
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@aballway aballway Dec 14, 2016 •
edited by DHowett-MSFT
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Migrating comments from other PR-
nit: m_width and m_height are UINT, but WICRect expects INT :(
#ByDesign

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That's fine?

In reply to: 92295863 [](ancestors = 92295863)

Microsoft::WRL::ComPtr<IWICBitmapLock> lock;
RETURN_IF_FAILED(Lock(copyRect, 0, &lock));
// TODO #1379: Support sub-regional locking.
RETURN_IF_FAILED(Lock(&fullRect, 0, &lock));

if (!copyRect) {
copyRect = &fullRect;
}

UINT sourceDataStride;
UINT sourceDataSize;
BYTE* sourceData;
RETURN_IF_FAILED(lock->GetStride(&sourceDataStride));
RETURN_IF_FAILED(lock->GetDataPointer(&sourceDataSize, &sourceData));

RETURN_HR_IF(E_INVALIDARG, sourceDataSize > bufferSize);

// TODO #1379 - should support regional copying.
RETURN_HR_IF(E_UNEXPECTED, memcpy_s(buffer, bufferSize, sourceData, sourceDataSize) != 0);
if (copyRect->X == 0 && copyRect->Y == 0 && copyRect->Width == m_width && copyRect->Height == m_height) {
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@aballway aballway Dec 13, 2016 •
edited by DHowett-MSFT
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Isn't this in your other PR? #Closed

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@aballway aballway Dec 14, 2016 •
edited by DHowett-MSFT
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super nit: make operator== for WICRect
#Closed

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no.

In reply to: 92295888 [](ancestors = 92295888)

RETURN_HR_IF(E_INVALIDARG, sourceDataSize > bufferSize);
RETURN_HR_IF(E_UNEXPECTED, memcpy_s(buffer, bufferSize, sourceData, sourceDataSize) != 0);
} else {
// Once we support sub-regional locking we can fix this stride copier.
size_t bytesPerPixel = sourceDataStride / fullRect.Width;
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@aballway aballway Dec 14, 2016 •
edited by DHowett-MSFT
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can width == 0? can sourceDataStride < fullRect.Width? #Closed

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It can. That'd be a <8bpp image, and we should bomb out for that ;P

In reply to: 92295930 [](ancestors = 92295930)

ptrdiff_t xOffBytes = copyRect->X * bytesPerPixel;
for (off_t i = 0, j = copyRect->Y; i < copyRect->Height; ++i, ++j) {
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@aballway aballway Dec 14, 2016 •
edited by DHowett-MSFT
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nit: why off_t vs ptrdiff_t, size_t?
#Closed

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Good question! No particular reason. It's not a pointer diff, but it does make sense as a size_t.

In reply to: 92295954 [](ancestors = 92295954)

RETURN_HR_IF(E_UNEXPECTED,
memcpy_s(buffer + (stride * i),
bufferSize - (stride * i),
sourceData + xOffBytes + (sourceDataStride * j),
stride));
}
}
return S_OK;
}

Expand Down
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