Merge pull request #17394 from hrydgard/vbuffer-ibuffer-sizes

Bump the index/vertex cpu-side buffer sizes a little.
hrydgard · May 3, 2023 · 1d8e549 · 1d8e549
2 parents aff455a + cee9d2b
commit 1d8e549
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Showing 3 changed files with 6 additions and 3 deletions.
diff --git a/GPU/Common/DrawEngineCommon.h b/GPU/Common/DrawEngineCommon.h
@@ -32,8 +32,8 @@ class VertexDecoder;
 
 enum {
 	VERTEX_BUFFER_MAX = 65536,
-	DECODED_VERTEX_BUFFER_SIZE = VERTEX_BUFFER_MAX * 64,
-	DECODED_INDEX_BUFFER_SIZE = VERTEX_BUFFER_MAX * 16,
+	DECODED_VERTEX_BUFFER_SIZE = VERTEX_BUFFER_MAX * 2 * 36,  // 36 == sizeof(SimpleVertex)
+	DECODED_INDEX_BUFFER_SIZE = VERTEX_BUFFER_MAX * 6 * 6 * 2,   // * 6 for spline tessellation, then * 6 again for converting into points/lines, and * 2 for 2 bytes per index
 };
 
 enum {

diff --git a/GPU/Common/SplineCommon.cpp b/GPU/Common/SplineCommon.cpp
@@ -548,7 +548,9 @@ void DrawEngineCommon::SubmitCurve(const void *control_points, const void *indic
 	output.indices = decIndex;
 	output.count = 0;
 
-	surface.Init(DECODED_VERTEX_BUFFER_SIZE / 2 / vertexSize);
+	int maxVerts = DECODED_VERTEX_BUFFER_SIZE / 2 / vertexSize;
+
+	surface.Init(maxVerts);
 
 	if (CanUseHardwareTessellation(surface.primType)) {
 		HardwareTessellation(output, surface, origVertType, points, tessDataTransfer);

diff --git a/GPU/Common/SplineCommon.h b/GPU/Common/SplineCommon.h
@@ -27,6 +27,7 @@
 #define HALF_CEIL(x) (x + 1) / 2 // Integer ceil = (int)ceil((float)x / 2.0f)
 
 // PSP compatible format so we can use the end of the pipeline in beziers etc
+// 8 + 4 + 12 + 12 = 36 bytes
 struct SimpleVertex {
 	float uv[2];
 	union {