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Interim function for reseting GrDrawTarget state, this should be folded into GrDrawState when it has getters / setters

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Review URL: http://codereview.appspot.com/5369045/



git-svn-id: http://skia.googlecode.com/svn/trunk@2642 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
bsalomon@google.com 2011-11-09 15:32:29 +00:00
parent 1afc4bfa0b
commit 82c7bd8f25
1 changed files with 27 additions and 19 deletions
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46
src/gpu/GrContext.cpp
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@ -214,6 +214,27 @@ void gen_stencil_key_values(const GrStencilBuffer* sb,
gen_stencil_key_values(sb->width(), sb->height(),
sb->numSamples(), v);
}
// This should be subsumed by a future version of GrDrawState
// It does not reset stage textures/samplers or per-vertex-edge-aa state since
// they aren't used unless the vertex layout references them.
// It also doesn't set the render target.
void reset_target_state(GrDrawTarget* target){
target->setViewMatrix(GrMatrix::I());
target->setColorFilter(0, SkXfermode::kDst_Mode);
target->disableState(GrDrawTarget::kDither_StateBit |
GrDrawTarget::kHWAntialias_StateBit |
GrDrawTarget::kClip_StateBit |
GrDrawTarget::kNoColorWrites_StateBit |
GrDrawTarget::kEdgeAAConcave_StateBit);
target->setEdgeAAData(NULL, 0);
target->disableStencil();
target->setAlpha(0xFF);
target->setBlendFunc(kOne_BlendCoeff,
kZero_BlendCoeff);
target->setFirstCoverageStage(GrDrawState::kNumStages);
target->setDrawFace(GrDrawState::kBoth_DrawFace);
}
}
GrContext::TextureCacheEntry GrContext::findAndLockTexture(TextureKey key,
@ -325,15 +346,11 @@ GrContext::TextureCacheEntry GrContext::createAndLockTexture(TextureKey key,
if (NULL != texture) {
GrDrawTarget::AutoStateRestore asr(fGpu);
reset_target_state(fGpu);
fGpu->setRenderTarget(texture->asRenderTarget());
fGpu->setTexture(0, clampEntry.texture());
fGpu->disableStencil();
fGpu->setViewMatrix(GrMatrix::I());
fGpu->setAlpha(0xff);
fGpu->setBlendFunc(kOne_BlendCoeff, kZero_BlendCoeff);
fGpu->disableState(GrDrawTarget::kDither_StateBit |
GrDrawTarget::kClip_StateBit |
GrDrawTarget::kHWAntialias_StateBit);
GrSamplerState::Filter filter;
// if filtering is not desired then we want to ensure all
// texels in the resampled image are copies of texels from
@ -1712,17 +1729,12 @@ bool GrContext::readRenderTargetPixels(GrRenderTarget* target,
return false;
}
target = texture->asRenderTarget();
fGpu->setRenderTarget(target);
GrAssert(NULL != target);
GrDrawTarget::AutoStateRestore asr(fGpu);
reset_target_state(fGpu);
fGpu->setViewMatrix(GrMatrix::I());
fGpu->setColorFilter(0, SkXfermode::kDst_Mode);
fGpu->disableState(GrDrawTarget::kClip_StateBit);
fGpu->setAlpha(0xFF);
fGpu->setBlendFunc(kOne_BlendCoeff,
kZero_BlendCoeff);
fGpu->setRenderTarget(target);
GrSamplerState sampler;
sampler.setClampNoFilter();
@ -1771,16 +1783,12 @@ void GrContext::writePixels(int left, int top, int width, int height,
texture->uploadTextureData(0, 0, width, height, buffer, stride);
GrDrawTarget::AutoStateRestore asr(fGpu);
reset_target_state(fGpu);
GrMatrix matrix;
matrix.setTranslate(GrIntToScalar(left), GrIntToScalar(top));
fGpu->setViewMatrix(matrix);
fGpu->setColorFilter(0, SkXfermode::kDst_Mode);
fGpu->disableState(GrDrawTarget::kClip_StateBit);
fGpu->setAlpha(0xFF);
fGpu->setBlendFunc(kOne_BlendCoeff,
kZero_BlendCoeff);
fGpu->setTexture(0, texture);
GrSamplerState sampler;