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Combine draw calls when hashing when possible, should help the same games as #4312

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Henrik Rydgård 2013-10-29 12:14:09 +01:00
parent 105fde7cb0
commit 60b1cb0008
1 changed files with 19 additions and 5 deletions
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24
GPU/GLES/TransformPipeline.cpp
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@ -1041,15 +1041,29 @@ u32 TransformDrawEngine::ComputeHash() {
// TODO: Add some caps both for numDrawCalls and num verts to check?
// It is really very expensive to check all the vertex data so often.
for (int i = 0; i < numDrawCalls; i++) {
if (!drawCalls[i].inds) {
fullhash += XXH32((const char *)drawCalls[i].verts, vertexSize * drawCalls[i].vertexCount, 0x1DE8CAC4);
const DeferredDrawCall &dc = drawCalls[i];
if (!dc.inds) {
fullhash += XXH32((const char *)dc.verts, vertexSize * dc.vertexCount, 0x1DE8CAC4);
} else {
int indexLowerBound = dc.indexLowerBound, indexUpperBound = dc.indexUpperBound;
int j = i + 1;
int lastMatch = i;
while (j < numDrawCalls) {
if (drawCalls[j].verts != dc.verts)
break;
indexLowerBound = std::min(indexLowerBound, (int)dc.indexLowerBound);
indexUpperBound = std::max(indexUpperBound, (int)dc.indexUpperBound);
lastMatch = j;
j++;
}
// This could get seriously expensive with sparse indices. Need to combine hashing ranges the same way
// we do when drawing.
fullhash += XXH32((const char *)drawCalls[i].verts + vertexSize * drawCalls[i].indexLowerBound,
vertexSize * (drawCalls[i].indexUpperBound - drawCalls[i].indexLowerBound), 0x029F3EE1);
fullhash += XXH32((const char *)dc.verts + vertexSize * dc.indexLowerBound,
vertexSize * (dc.indexUpperBound - dc.indexLowerBound), 0x029F3EE1);
int indexSize = (dec_->VertexType() & GE_VTYPE_IDX_MASK) == GE_VTYPE_IDX_16BIT ? 2 : 1;
fullhash += XXH32((const char *)drawCalls[i].inds, indexSize * drawCalls[i].vertexCount, 0x955FD1CA);
// Hm, we will miss some indices when combining above, but meh, it should be fine.
fullhash += XXH32((const char *)dc.inds, indexSize * dc.vertexCount, 0x955FD1CA);
i = lastMatch;
}
}
if (uvScale) {