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ClearScreen fixes:

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- Clear alpha channel to 0xFF instead of 0x00 whenever we (re-)create the EFB texture
- Disable color/alpha channels whenever the actual EFB format doesn't use them

Fixes issue 2826.
Fixes issue 1879.

Please check if issue 3014 is fixed now, as well as any other games which might have broken due to ClearScreen changes.
For what it's worth, Super Mario Sunshine still shows a small glitch even with these changes.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6635 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
NeoBrainX 2010-12-21 22:18:40 +00:00
commit 6087987f85
4 changed files with 48 additions and 17 deletions
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7
Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
View file

@ -662,8 +662,11 @@ bool Renderer::SetScissorRect()
void Renderer::SetColorMask()
{
// Only enable alpha channel if it's supported by the current EFB format
GLenum ColorMask = (bpmem.blendmode.colorupdate) ? GL_TRUE : GL_FALSE;
GLenum AlphaMask = (bpmem.blendmode.alphaupdate && (bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24)) ? GL_TRUE : GL_FALSE;
GLenum ColorMask = GL_FALSE, AlphaMask = GL_FALSE;
if (bpmem.blendmode.colorupdate && (bpmem.zcontrol.pixel_format == PIXELFMT_RGB8_Z24 || bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24 || bpmem.zcontrol.pixel_format == PIXELFMT_RGB565_Z16))
AlphaMask = GL_TRUE;
if (bpmem.blendmode.alphaupdate && (bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24))
ColorMask = GL_TRUE;
glColorMask(ColorMask, ColorMask, ColorMask, AlphaMask);
}