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[Gpu] Various speedup (texture cache not tested ...)

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Ced2911 2013-11-09 23:29:44 +01:00 • committed by Henrik Rydgard
parent ef54989598
commit fdc5d02e27
1 changed files with 22 additions and 13 deletions
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35
GPU/Directx9/TransformPipelineDX9.cpp
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@ -969,29 +969,38 @@ void TransformDrawEngineDX9::DecodeVerts() {
u32 TransformDrawEngineDX9::ComputeHash() {
u32 fullhash = 0;
int vertexSize = dec_->GetDecVtxFmt().stride;
int numDrawCalls_ = std::min(20, numDrawCalls);
int vertexCount = 0;
int indicesCount = 0;
// 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) {
vertexCount = std::min((int)drawCalls[i].vertexCount, 500);
fullhash += DoReliableHash((const char *)drawCalls[i].verts, vertexSize * vertexCount, 0x1DE8CAC4);
const DeferredDrawCall &dc = drawCalls[i];
if (!dc.inds) {
fullhash += DoReliableHash((const char *)dc.verts, vertexSize * dc.vertexCount, 0x1DE8CAC4);
} else {
vertexCount = std::min((int)drawCalls[i].vertexCount, 500);
indicesCount = std::min((drawCalls[i].indexUpperBound - drawCalls[i].indexLowerBound), 500);
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 += DoReliableHash((const char *)drawCalls[i].verts + vertexSize * drawCalls[i].indexLowerBound,
vertexSize * indicesCount, 0x029F3EE1);
fullhash += DoReliableHash((const char *)dc.verts + vertexSize * indexLowerBound,
vertexSize * (indexUpperBound - indexLowerBound), 0x029F3EE1);
int indexSize = (dec_->VertexType() & GE_VTYPE_IDX_MASK) == GE_VTYPE_IDX_16BIT ? 2 : 1;
fullhash += DoReliableHash((const char *)drawCalls[i].inds, indexSize * vertexCount, 0x955FD1CA);
// Hm, we will miss some indices when combining above, but meh, it should be fine.
fullhash += DoReliableHash((const char *)dc.inds, indexSize * dc.vertexCount, 0x955FD1CA);
i = lastMatch;
}
}
if (uvScale) {
fullhash += DoReliableHash(&uvScale[0], sizeof(uvScale[0]) * numDrawCalls, 0x0123e658);
}
return fullhash;
}