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Add shader mode for constant alpha overwrite

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This commit is contained in:
Jack Andersen
2018-02-04 20:52:54 -10:00
parent 25dfeb64aa
commit edd26fc65b
9 changed files with 127 additions and 31 deletions
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32
lib/graphicsdev/D3D11.cpp
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@@ -560,7 +560,7 @@ class D3D11ShaderPipeline : public GraphicsDataNode<IShaderPipeline>
const boo::ObjToken<IVertexFormat>& vtxFmt,
BlendFactor srcFac, BlendFactor dstFac, Primitive prim,
ZTest depthTest, bool depthWrite, bool colorWrite,
bool alphaWrite, CullMode culling)
bool alphaWrite, bool overwriteAlpha, CullMode culling)
: GraphicsDataNode<IShaderPipeline>(parent), m_vtxFmt(vtxFmt),
m_vert(std::move(vert)), m_pixel(std::move(pixel)),
m_topology(PRIMITIVE_TABLE[int(prim)])
@@ -619,15 +619,36 @@ class D3D11ShaderPipeline : public GraphicsDataNode<IShaderPipeline>
blDesc.RenderTarget[0].SrcBlend = D3D11_BLEND_SRC_ALPHA;
blDesc.RenderTarget[0].DestBlend = D3D11_BLEND_ONE;
blDesc.RenderTarget[0].BlendOp = D3D11_BLEND_OP_REV_SUBTRACT;
if (overwriteAlpha)
{
blDesc.RenderTarget[0].SrcBlendAlpha = D3D11_BLEND_ONE;
blDesc.RenderTarget[0].DestBlendAlpha = D3D11_BLEND_ZERO;
blDesc.RenderTarget[0].BlendOpAlpha = D3D11_BLEND_OP_ADD;
}
else
{
blDesc.RenderTarget[0].SrcBlendAlpha = D3D11_BLEND_SRC_ALPHA;
blDesc.RenderTarget[0].DestBlendAlpha = D3D11_BLEND_ONE;
blDesc.RenderTarget[0].BlendOpAlpha = D3D11_BLEND_OP_REV_SUBTRACT;
}
}
else
{
blDesc.RenderTarget[0].SrcBlend = BLEND_FACTOR_TABLE[int(srcFac)];
blDesc.RenderTarget[0].DestBlend = BLEND_FACTOR_TABLE[int(dstFac)];
blDesc.RenderTarget[0].BlendOp = D3D11_BLEND_OP_ADD;
if (m_overwriteAlpha)
{
blDesc.RenderTarget[0].SrcBlendAlpha = D3D11_BLEND_ONE;
blDesc.RenderTarget[0].DestBlendAlpha = D3D11_BLEND_ZERO;
}
else
{
blDesc.RenderTarget[0].SrcBlendAlpha = BLEND_FACTOR_TABLE[int(srcFac)];
blDesc.RenderTarget[0].DestBlendAlpha = BLEND_FACTOR_TABLE[int(dstFac)];
}
blDesc.RenderTarget[0].BlendOpAlpha = D3D11_BLEND_OP_ADD;
}
blDesc.RenderTarget[0].SrcBlendAlpha = D3D11_BLEND_ONE;
blDesc.RenderTarget[0].DestBlendAlpha = D3D11_BLEND_ZERO;
blDesc.RenderTarget[0].RenderTargetWriteMask =
(colorWrite ? (D3D11_COLOR_WRITE_ENABLE_RED |
D3D11_COLOR_WRITE_ENABLE_GREEN |
@@ -1381,7 +1402,7 @@ public:
ComPtr<ID3DBlob>* pipelineBlob, const boo::ObjToken<IVertexFormat>& vtxFmt,
BlendFactor srcFac, BlendFactor dstFac, Primitive prim,
ZTest depthTest, bool depthWrite, bool colorWrite,
bool alphaWrite, CullMode culling)
bool alphaWrite, CullMode culling, bool overwriteAlpha)
{
XXH64_state_t hashState;
uint64_t srcHashes[2] = {};
@@ -1482,7 +1503,8 @@ public:
return {new D3D11ShaderPipeline(m_data, ctx,
std::move(vertShader), std::move(fragShader),
vtxFmt, srcFac, dstFac, prim, depthTest, depthWrite, colorWrite, alphaWrite, culling)};
vtxFmt, srcFac, dstFac, prim, depthTest, depthWrite, colorWrite,
alphaWrite, overwriteAlpha, culling)};
}
boo::ObjToken<IShaderDataBinding> newShaderDataBinding(