Recommit r5350 with fix for image failures (which affected GLs that don't support ARB_texture_swizzle).



git-svn-id: http://skia.googlecode.com/svn/trunk@5353 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/effects/GrConvolutionEffect.cpp b/src/gpu/effects/GrConvolutionEffect.cpp
index 162a0cc..635064f 100644
--- a/src/gpu/effects/GrConvolutionEffect.cpp
+++ b/src/gpu/effects/GrConvolutionEffect.cpp
@@ -84,15 +84,11 @@
         index.appendS32(i);
         kernel.appendArrayAccess(index.c_str(), &kernelIndex);
         code->appendf("\t\t%s += ", outputColor);
-        builder->emitTextureLookup(samplerName, "coord");
+        builder->appendTextureLookup(&builder->fFSCode, samplerName, "coord");
         code->appendf(" * %s;\n", kernelIndex.c_str());
         code->appendf("\t\tcoord += %s;\n", imgInc);
     }
-
-    if (builder->fModulate.size()) {
-        code->appendf("\t\t%s = %s%s;\n", outputColor, outputColor,
-                      builder->fModulate.c_str());
-    }
+    GrGLSLMulVarBy4f(&builder->fFSCode, 2, outputColor, inputColor);
 }
 
 void GrGLConvolutionEffect::setData(const GrGLUniformManager& uman,