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DX9: Only enable dst alpha pass if the EFB format has an alpha channel. 

Guess it would be better if we made bpmem.blendmode.alphaupdate private to prevent improper usage...

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6932 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
NeoBrainX 2011-01-27 17:01:24 +00:00
parent 66cd497dfe
commit 0371f15c23
1 changed files with 3 additions and 1 deletions
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4
Source/Plugins/Plugin_VideoDX9/Src/VertexManager.cpp
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@ -173,7 +173,9 @@ void VertexManager::vFlush()
Draw(stride);
if (bpmem.dstalpha.enable && bpmem.blendmode.alphaupdate)
bool useDstAlpha = bpmem.dstalpha.enable && bpmem.blendmode.alphaupdate &&
bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24;
if (useDstAlpha)
{
DWORD write = 0;
if (!PixelShaderCache::SetShader(DSTALPHA_ALPHA_PASS, g_nativeVertexFmt->m_components))