AuroraMiddleware/skia2
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Replace A8 with RGBA8 when renderable A8 isn't supported

Browse Source 
https://codereview.appspot.com/7372053/



git-svn-id: http://skia.googlecode.com/svn/trunk@7882 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
robertphillips@google.com 2013-02-27 16:43:49 +00:00
parent 0f0d9b720e
commit 94ba6c62c7
2 changed files with 18 additions and 3 deletions
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4
src/gpu/GrClipMaskManager.cpp
View File

@ -397,7 +397,11 @@ bool GrClipMaskManager::getMaskTexture(int32_t clipStackGenID,
desc.fFlags = kRenderTarget_GrTextureFlagBit;
desc.fWidth = clipSpaceIBounds.width();
desc.fHeight = clipSpaceIBounds.height();
desc.fConfig = kRGBA_8888_GrPixelConfig;
if (this->getContext()->isConfigRenderable(kAlpha_8_GrPixelConfig)) {
// We would always like A8 but it isn't supported on all platforms
desc.fConfig = kAlpha_8_GrPixelConfig;
}
fAACache.acquireMask(clipStackGenID, desc, clipSpaceIBounds);
}

15
src/gpu/GrContext.cpp
View File

@ -425,6 +425,11 @@ GrTexture* GrContext::lockAndRefScratchTexture(const GrTextureDesc& inDesc, Scra
desc.fHeight = GrMax(MIN_SIZE, GrNextPow2(desc.fHeight));
}
// Renderable A8 targets are not universally supported (e.g., not on ANGLE)
GrAssert(this->isConfigRenderable(kAlpha_8_GrPixelConfig) ||
!(desc.fFlags & kRenderTarget_GrTextureFlagBit) ||
(desc.fConfig != kAlpha_8_GrPixelConfig));
GrResource* resource = NULL;
int origWidth = desc.fWidth;
int origHeight = desc.fHeight;
@ -1435,7 +1440,10 @@ bool GrContext::readRenderTargetPixels(GrRenderTarget* target,
}
swapRAndB = false; // we will handle the swap in the draw.
GrDrawTarget::AutoStateRestore asr(fGpu, GrDrawTarget::kReset_ASRInit);
// We protect the existing geometry here since it may not be
// clear to the caller that a draw operation (i.e., drawSimpleRect)
// can be invoked in this method
GrDrawTarget::AutoGeometryAndStatePush agasp(fGpu, GrDrawTarget::kReset_ASRInit);
GrDrawState* drawState = fGpu->drawState();
GrAssert(effect);
drawState->setEffect(0, effect);
@ -1622,7 +1630,10 @@ bool GrContext::writeRenderTargetPixels(GrRenderTarget* target,
return false;
}
GrDrawTarget::AutoStateRestore asr(fGpu, GrDrawTarget::kReset_ASRInit);
// writeRenderTargetPixels can be called in the midst of drawing another
// object (e.g., when uploading a SW path rendering to the gpu while
// drawing a rect) so preserve the current geometry.
GrDrawTarget::AutoGeometryAndStatePush agasp(fGpu, GrDrawTarget::kReset_ASRInit);
GrDrawState* drawState = fGpu->drawState();
GrAssert(effect);
drawState->setEffect(0, effect);