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Bug 980642 - Implement ClearRect for CompositorD3D11. r=Bas

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This commit is contained in:
Matt Woodrow 2014-03-28 16:38:32 +13:00
parent 7c365c8f30
commit 696477a973
2 changed files with 50 additions and 0 deletions
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48
gfx/layers/d3d11/CompositorD3D11.cpp
View File

@ -58,6 +58,7 @@ struct DeviceAttachmentsD3D11
RefPtr<ID3D11BlendState> mPremulBlendState;
RefPtr<ID3D11BlendState> mNonPremulBlendState;
RefPtr<ID3D11BlendState> mComponentBlendState;
RefPtr<ID3D11BlendState> mDisabledBlendState;
};
CompositorD3D11::CompositorD3D11(nsIWidget* aWidget)
@ -243,6 +244,18 @@ CompositorD3D11::Initialize()
return false;
}
}
D3D11_RENDER_TARGET_BLEND_DESC rtBlendDisabled = {
FALSE,
D3D11_BLEND_SRC_ALPHA, D3D11_BLEND_INV_SRC_ALPHA, D3D11_BLEND_OP_ADD,
D3D11_BLEND_ONE, D3D11_BLEND_INV_SRC_ALPHA, D3D11_BLEND_OP_ADD,
D3D11_COLOR_WRITE_ENABLE_ALL
};
blendDesc.RenderTarget[0] = rtBlendDisabled;
hr = mDevice->CreateBlendState(&blendDesc, byRef(mAttachments->mDisabledBlendState));
if (FAILED(hr)) {
return false;
}
}
nsRefPtr<IDXGIDevice> dxgiDevice;
@ -488,6 +501,41 @@ CompositorD3D11::SetPSForEffect(Effect* aEffect, MaskType aMaskType, gfx::Surfac
}
}
void
CompositorD3D11::ClearRect(const gfx::Rect& aRect)
{
mContext->OMSetBlendState(mAttachments->mDisabledBlendState, sBlendFactor, 0xFFFFFFFF);
Matrix4x4 identity;
memcpy(&mVSConstants.layerTransform, &identity._11, 64);
mVSConstants.layerQuad = aRect;
mVSConstants.renderTargetOffset[0] = 0;
mVSConstants.renderTargetOffset[1] = 0;
mPSConstants.layerOpacity[0] = 1.0f;
D3D11_RECT scissor;
scissor.left = aRect.x;
scissor.right = aRect.XMost();
scissor.top = aRect.y;
scissor.bottom = aRect.YMost();
mContext->RSSetScissorRects(1, &scissor);
mContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
mContext->VSSetShader(mAttachments->mVSQuadShader[MaskNone], nullptr, 0);
mContext->PSSetShader(mAttachments->mSolidColorShader[MaskNone], nullptr, 0);
mPSConstants.layerColor[0] = 0;
mPSConstants.layerColor[1] = 0;
mPSConstants.layerColor[2] = 0;
mPSConstants.layerColor[3] = 0;
UpdateConstantBuffers();
mContext->Draw(4, 0);
mContext->OMSetBlendState(mAttachments->mPremulBlendState, sBlendFactor, 0xFFFFFFFF);
}
void
CompositorD3D11::DrawQuad(const gfx::Rect& aRect,
const gfx::Rect& aClipRect,

2
gfx/layers/d3d11/CompositorD3D11.h
View File

@ -90,6 +90,8 @@ public:
// If the offset is 0, 0 that's okay.
}
virtual void ClearRect(const gfx::Rect& aRect) MOZ_OVERRIDE;
virtual void DrawQuad(const gfx::Rect &aRect,
const gfx::Rect &aClipRect,
const EffectChain &aEffectChain,