wined3d: Avoid the TMP_COLOR mov in some cases.
Many 2.0 and 3.0 shaders end with a "mov oC0, rx". If sRGB writing is enabled,
the ARB backend writes to a TMP_COLOR temporary, and at the end of the shader
writes the sRGB corrected color to result.color. If oC0 is not partially
rewritten after the mov, we can ignore the mov, not declare TMP_COLOR at all,
and just use the rx register as input for the sRGB correction code. This saves
a temporary and an instruction.
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 4e0eae7..8b7bff8 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -2711,6 +2711,10 @@
unsigned char numbumpenvmatconsts;
struct stb_const_desc luminanceconst[MAX_TEXTURES];
char vpos_uniform;
+
+ BOOL color0_mov;
+ DWORD color0_reg;
+
} IWineD3DPixelShaderImpl;
extern const IWineD3DPixelShaderVtbl IWineD3DPixelShader_Vtbl;
