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Use premultiplied alpha for plDynamicTextMaps on GUI controls.

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This fixes the irregular dark fringes around light text when not exactly pixel-aligned that are caused by independent interpolation of color and alpha. It also makes calculations simpler for things to come.
This commit is contained in:
Christian Walther
2011-12-30 15:10:47 +01:00
parent 1f0277e3e0
commit e02141055a
10 changed files with 149 additions and 35 deletions
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18
MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plPipeline/plDXPipeline.cpp
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@ -7229,12 +7229,26 @@ void plDXPipeline::IHandleFirstStageBlend()
fD3DDevice->SetRenderState( D3DRS_ALPHABLENDENABLE, TRUE );
if( fLayerState[0].fBlendFlags & hsGMatState::kBlendInvertFinalAlpha )
{
fD3DDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_INVSRCALPHA );
if( fLayerState[0].fBlendFlags & hsGMatState::kBlendAlphaPremultiplied )
{
fD3DDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_ONE );
}
else
{
fD3DDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_INVSRCALPHA );
}
fD3DDevice->SetRenderState( D3DRS_DESTBLEND, D3DBLEND_SRCALPHA );
}
else
{
fD3DDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_SRCALPHA );
if( fLayerState[0].fBlendFlags & hsGMatState::kBlendAlphaPremultiplied )
{
fD3DDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_ONE );
}
else
{
fD3DDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_SRCALPHA );
}
fD3DDevice->SetRenderState( D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA );
}
break;