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rhi: metal: Eliminate redundant setCullMode and setFrontFaceWinding calls

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Task-number: QTBUG-78605
Change-Id: Icc3a9636055b5f45418da28cc05aa02e19370c02
Reviewed-by: Christian Strømme <christian.stromme@qt.io>
This commit is contained in:
Laszlo Agocs 2019-09-25 15:14:05 +02:00
parent 22d22eb282
commit c06627a230
2 changed files with 18 additions and 2 deletions
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15
src/gui/rhi/qrhimetal.mm
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@ -838,8 +838,15 @@ void QRhiMetal::setGraphicsPipeline(QRhiCommandBuffer *cb, QRhiGraphicsPipeline
[cbD->d->currentRenderPassEncoder setRenderPipelineState: psD->d->ps];
[cbD->d->currentRenderPassEncoder setDepthStencilState: psD->d->ds];
[cbD->d->currentRenderPassEncoder setCullMode: psD->d->cullMode];
[cbD->d->currentRenderPassEncoder setFrontFacingWinding: psD->d->winding];
if (cbD->currentCullMode == -1 || psD->d->cullMode != uint(cbD->currentCullMode)) {
[cbD->d->currentRenderPassEncoder setCullMode: psD->d->cullMode];
cbD->currentCullMode = int(psD->d->cullMode);
}
if (cbD->currentFrontFaceWinding == -1 || psD->d->winding != uint(cbD->currentFrontFaceWinding)) {
[cbD->d->currentRenderPassEncoder setFrontFacingWinding: psD->d->winding];
cbD->currentFrontFaceWinding = int(psD->d->winding);
}
}
psD->lastActiveFrameSlot = currentFrameSlot;
@ -3450,6 +3457,10 @@ void QMetalCommandBuffer::resetPerPassCachedState()
currentSrbGeneration = 0;
currentResSlot = -1;
currentIndexBuffer = nullptr;
currentIndexOffset = 0;
currentIndexFormat = QRhiCommandBuffer::IndexUInt16;
currentCullMode = -1;
currentFrontFaceWinding = -1;
d->currentFirstVertexBinding = -1;
d->currentVertexInputsBuffers.clear();

5
src/gui/rhi/qrhimetal_p_p.h
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@ -271,8 +271,11 @@ struct QMetalCommandBuffer : public QRhiCommandBuffer
ComputePass
};
// per-pass (render or compute command encoder) persistent state
PassType recordingPass;
QRhiRenderTarget *currentTarget;
// per-pass (render or compute command encoder) volatile (cached) state
QRhiGraphicsPipeline *currentGraphicsPipeline;
QRhiComputePipeline *currentComputePipeline;
uint currentPipelineGeneration;
@ -283,6 +286,8 @@ struct QMetalCommandBuffer : public QRhiCommandBuffer
QRhiBuffer *currentIndexBuffer;
quint32 currentIndexOffset;
QRhiCommandBuffer::IndexFormat currentIndexFormat;
int currentCullMode;
int currentFrontFaceWinding;
const QRhiNativeHandles *nativeHandles();
void resetState();