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mesa: optimize _UsesDualSrc blend flag setting

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For glBlendFunc and glBlendFuncSeparate(), the _UsesDualSrc flag
will be the same for all buffers, so no need to compute it N times.

Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Brian Paul
2015-10-14 10:08:18 -06:00
parent d21e17f48f
commit dfbd62e772
1 changed files with 6 additions and 1 deletions
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src/mesa/main/blend.c
+6 -1
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@@ -255,8 +255,13 @@ _mesa_BlendFuncSeparate( GLenum sfactorRGB, GLenum dfactorRGB,
ctx->Color.Blend[buf].DstRGB = dfactorRGB;
ctx->Color.Blend[buf].SrcA = sfactorA;
ctx->Color.Blend[buf].DstA = dfactorA;
update_uses_dual_src(ctx, buf);
}
update_uses_dual_src(ctx, 0);
for (buf = 1; buf < numBuffers; buf++) {
ctx->Color.Blend[buf]._UsesDualSrc = ctx->Color.Blend[0]._UsesDualSrc;
}
ctx->Color._BlendFuncPerBuffer = GL_FALSE;
if (ctx->Driver.BlendFuncSeparate) {