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Depth Z: Add a stat for Z-culling, correctly distinguish the small/backface stats

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Henrik Rydgård 2024-12-28 16:11:56 +01:00
parent 449e3e1360
commit 8b10ee3937
3 changed files with 11 additions and 3 deletions
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9
GPU/Common/DepthRaster.cpp
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@ -149,11 +149,11 @@ TriangleResult DepthRasterTriangle(uint16_t *depthBuf, int stride, int x1, int y
// TODO: Cull really small triangles here - we can increase the threshold a bit probably.
int triArea = (v1y - v2y) * v0x + (v2x - v1x) * v0y + (v1x * v2y - v2x * v1y);
if (triArea <= 0) {
if (triArea < 0) {
return TriangleResult::Backface;
}
if (triArea < MIN_TRI_AREA) {
return TriangleResult::TooSmall;
return TriangleResult::TooSmall; // Or zero area.
}
float oneOverTriArea = 1.0f / (float)triArea;
@ -344,6 +344,7 @@ int DepthRasterClipIndexedTriangles(int *tx, int *ty, float *tz, const float *tr
static const float zerovec[4] = {};
int collected = 0;
int planeCulled = 0;
const float *verts[12]; // four triangles at a time!
for (int i = 0; i < count; i += 3) {
// Collect valid triangles into buffer.
@ -356,6 +357,8 @@ int DepthRasterClipIndexedTriangles(int *tx, int *ty, float *tz, const float *tr
verts[collected + 1] = v1;
verts[collected + 2] = v2;
collected += 3;
} else {
planeCulled++;
}
if (i >= count - 3 && collected != 12) {
@ -433,6 +436,8 @@ int DepthRasterClipIndexedTriangles(int *tx, int *ty, float *tz, const float *tr
outCount += 12;
}
}
gpuStats.numDepthRasterZCulled += planeCulled;
return outCount;
}

2
GPU/GPU.h
View file

@ -113,6 +113,7 @@ struct GPUStatistics {
numDepthRasterBackface = 0;
numDepthRasterNoPixels = 0;
numDepthRasterTooSmall = 0;
numDepthRasterZCulled = 0;
vertexGPUCycles = 0;
otherGPUCycles = 0;
}
@ -159,6 +160,7 @@ struct GPUStatistics {
int numDepthRasterBackface;
int numDepthRasterNoPixels;
int numDepthRasterTooSmall;
int numDepthRasterZCulled;
// Flip count. Doesn't really belong here.
int numFlips;
};

3
GPU/GPUCommonHW.cpp
View file

@ -1776,7 +1776,7 @@ size_t GPUCommonHW::FormatGPUStatsCommon(char *buffer, size_t size) {
"replacer: tracks %d references, %d unique textures\n"
"Cpy: depth %d, color %d, reint %d, blend %d, self %d\n"
"GPU cycles: %d (%0.1f per vertex)\n"
"Depth raster: %0.2f ms, %d prim, %d nopix, %d small, %d backface\n%s",
"Depth raster: %0.2f ms, %d prim, %d nopix, %d small, %d back, %d zcull\n%s",
gpuStats.msProcessingDisplayLists * 1000.0f,
gpuStats.numDrawSyncs,
gpuStats.numListSyncs,
@ -1818,6 +1818,7 @@ size_t GPUCommonHW::FormatGPUStatsCommon(char *buffer, size_t size) {
gpuStats.numDepthRasterNoPixels,
gpuStats.numDepthRasterTooSmall,
gpuStats.numDepthRasterBackface,
gpuStats.numDepthRasterZCulled,
debugRecording_ ? "(debug-recording)" : ""
);
}