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OpenGL plugin: Support for dual-source blending, CURRENTLY DISABLED. It doesn't work yet. To fix it, we may need to convert all our shaders to GLSL so that we can use glBindFragDataLocation.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6306 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Nolan Check
2010-10-23 19:55:19 +00:00
parent 91186d2b8a
commit 2ec3db44ed
5 changed files with 67 additions and 11 deletions
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29
Source/Plugins/Plugin_VideoOGL/Src/VertexManager.cpp
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@ -184,8 +184,31 @@ void VertexManager::vFlush()
VertexShaderManager::SetConstants();
PixelShaderManager::SetConstants();
bool useDstAlpha = !g_ActiveConfig.bDstAlphaPass && bpmem.dstalpha.enable && bpmem.blendmode.alphaupdate
&& bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24;
bool dualSourcePossible = USE_DUAL_SOURCE_BLEND && GLEW_ARB_blend_func_extended;
// finally bind
FRAGMENTSHADER* ps = PixelShaderCache::SetShader(DSTALPHA_NONE,g_nativeVertexFmt->m_components);
FRAGMENTSHADER* ps;
if (dualSourcePossible)
{
if (useDstAlpha)
{
// If host supports GL_ARB_blend_func_extended, we can do dst alpha in
// the same pass as regular rendering.
Renderer::SetBlendMode(true);
ps = PixelShaderCache::SetShader(DSTALPHA_DUAL_SOURCE_BLEND, g_nativeVertexFmt->m_components);
}
else
{
Renderer::SetBlendMode(true);
ps = PixelShaderCache::SetShader(DSTALPHA_NONE,g_nativeVertexFmt->m_components);
}
}
else
{
ps = PixelShaderCache::SetShader(DSTALPHA_NONE,g_nativeVertexFmt->m_components);
}
VERTEXSHADER* vs = VertexShaderCache::SetShader(g_nativeVertexFmt->m_components);
if (ps) PixelShaderCache::SetCurrentShader(ps->glprogid); // Lego Star Wars crashes here.
if (vs) VertexShaderCache::SetCurrentShader(vs->glprogid);
@ -193,10 +216,8 @@ void VertexManager::vFlush()
Draw();
// run through vertex groups again to set alpha
if (!g_ActiveConfig.bDstAlphaPass && bpmem.dstalpha.enable && bpmem.blendmode.alphaupdate)
if (useDstAlpha && !dualSourcePossible)
{
// TODO: If host supports GL_ARB_blend_func_extended, use
// DSTALPHA_DUAL_SOURCE_BLEND and set blend modes accordingly.
ps = PixelShaderCache::SetShader(DSTALPHA_ALPHA_PASS,g_nativeVertexFmt->m_components);
if (ps) PixelShaderCache::SetCurrentShader(ps->glprogid);