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Add GPU cycle estimation to the softgpu.

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Unknown W. Brackets 2013-10-27 15:05:57 -07:00
parent 1e65a691f4
commit 98e257c95d
1 changed files with 28 additions and 0 deletions
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28
GPU/Software/SoftGpu.cpp
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@ -268,6 +268,32 @@ void SoftGPU::FastRunLoop(DisplayList &list) {
}
}
int EstimatePerVertexCost() {
// TODO: This is transform cost, also account for rasterization cost somehow... although it probably
// runs in parallel with transform.
// Also, this is all pure guesswork. If we can find a way to do measurements, that would be great.
// GTA wants a low value to run smooth, GoW wants a high value (otherwise it thinks things
// went too fast and starts doing all the work over again).
int cost = 20;
if (gstate.isLightingEnabled()) {
cost += 10;
}
for (int i = 0; i < 4; i++) {
if (gstate.isLightChanEnabled(i))
cost += 10;
}
if (gstate.getUVGenMode() != GE_TEXMAP_TEXTURE_COORDS) {
cost += 20;
}
// TODO: morphcount
return cost;
}
void SoftGPU::ExecuteOp(u32 op, u32 diff)
{
u32 cmd = op >> 24;
@ -303,6 +329,7 @@ void SoftGPU::ExecuteOp(u32 op, u32 diff)
if (type != GE_PRIM_TRIANGLES && type != GE_PRIM_TRIANGLE_STRIP && type != GE_PRIM_TRIANGLE_FAN && type != GE_PRIM_RECTANGLES) {
ERROR_LOG_REPORT(G3D, "Software: DL DrawPrim type: %s count: %i vaddr= %08x, iaddr= %08x", type<7 ? types[type] : "INVALID", count, gstate_c.vertexAddr, gstate_c.indexAddr);
cyclesExecuted += EstimatePerVertexCost() * count;
break;
}
@ -321,6 +348,7 @@ void SoftGPU::ExecuteOp(u32 op, u32 diff)
indices = Memory::GetPointer(gstate_c.indexAddr);
}
cyclesExecuted += EstimatePerVertexCost() * count;
TransformUnit::SubmitPrimitive(verts, indices, type, count, gstate.vertType);
}
break;