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Bug 1012407 - Part 1: Reduce amount of data uploaded to GPU (layer quad rect instead of transform) r=Bas

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This commit is contained in:
Andreas Gal
2014-05-21 23:03:49 +02:00
parent 43b04c7213
commit fcb1017120
2 changed files with 8 additions and 17 deletions
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7
gfx/layers/opengl/OGLShaderProgram.cpp
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@@ -32,7 +32,7 @@ AddUniforms(ProgramProfileOGL& aProfile)
static const char *sKnownUniformNames[] = {
"uLayerTransform",
"uMaskQuadTransform",
"uLayerQuadTransform",
"uLayerQuadRect",
"uMatrixProj",
"uTextureTransform",
"uRenderTargetOffset",
@@ -145,7 +145,7 @@ ProgramProfileOGL::GetProfileFor(ShaderConfigOGL aConfig)
AddUniforms(result);
vs << "uniform mat4 uMatrixProj;" << endl;
vs << "uniform mat4 uLayerQuadTransform;" << endl;
vs << "uniform vec4 uLayerQuadRect;" << endl;
vs << "uniform mat4 uLayerTransform;" << endl;
vs << "uniform vec4 uRenderTargetOffset;" << endl;
@@ -164,8 +164,7 @@ ProgramProfileOGL::GetProfileFor(ShaderConfigOGL aConfig)
}
vs << "void main() {" << endl;
vs << " vec4 finalPosition = aVertexCoord;" << endl;
vs << " finalPosition = uLayerQuadTransform * finalPosition;" << endl;
vs << " vec4 finalPosition = vec4(aVertexCoord.xy * uLayerQuadRect.zw + uLayerQuadRect.xy, 0.0, 1.0);" << endl;
vs << " finalPosition = uLayerTransform * finalPosition;" << endl;
vs << " finalPosition.xyz /= finalPosition.w;" << endl;