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DX11 plugin: Do destination-alpha in a single pass. No more drawing the same geometry twice! SMG is faster now because it uses destination-alpha extensively. This uses dual-source color blending, a DirectX 10-level feature. The equivalent OpenGL function comes from the GL_ARB_blend_func_extended extension, which was made core in OpenGL 3.3.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6294 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Nolan Check
2010-10-20 03:11:22 +00:00
parent 479eea6ad2
commit cb453a0fb3
7 changed files with 79 additions and 62 deletions
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26
Source/Plugins/Plugin_VideoDX11/Src/VertexManager.cpp
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@ -144,12 +144,9 @@ void VertexManager::LoadBuffers()
m_indexBufferCursor += iCount;
}
void VertexManager::Draw(UINT stride, bool alphapass)
void VertexManager::Draw(UINT stride)
{
if (!alphapass)
D3D::gfxstate->ApplyState();
else
D3D::gfxstate->AlphaPass();
D3D::gfxstate->ApplyState();
D3D::context->IASetVertexBuffers(0, 1, &m_vertexBuffer, &stride, &m_vertexDrawOffset);
D3D::context->IASetIndexBuffer(m_indexBuffer, DXGI_FORMAT_R16_UINT, 0);
@ -221,7 +218,12 @@ void VertexManager::vFlush()
VertexShaderManager::SetConstants();
PixelShaderManager::SetConstants();
if (!PixelShaderCache::SetShader(false,g_nativeVertexFmt->m_components))
bool useDstAlpha = bpmem.dstalpha.enable && bpmem.blendmode.alphaupdate &&
bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24;
D3D::gfxstate->SetDstAlpha(useDstAlpha);
if (!PixelShaderCache::SetShader(useDstAlpha,g_nativeVertexFmt->m_components))
goto shader_fail;
if (!VertexShaderCache::SetShader(g_nativeVertexFmt->m_components))
goto shader_fail;
@ -230,18 +232,8 @@ void VertexManager::vFlush()
g_nativeVertexFmt->SetupVertexPointers();
LoadBuffers();
Draw(stride);
Draw(stride, false);
if (bpmem.dstalpha.enable && bpmem.blendmode.alphaupdate)
{
DWORD write = 0;
if (!PixelShaderCache::SetShader(true,g_nativeVertexFmt->m_components))
goto shader_fail;
// update alpha only
Draw(stride, true);
}
D3D::gfxstate->Reset();
shader_fail: