fixed GLVec4ScalarBench

bench/GLVec4ScalarBench.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkMatrix.h"
 #include "SkPoint.h"
 #include "SkString.h"
@@ skipping 127 matching lines @@
     oColor.setTypeModifier(GrShaderVar::kVaryingIn_TypeModifier);
     oColor.appendDecl(glslCaps, &fshaderTxt);
     fshaderTxt.append(";\n");
 
     const char* fsOutName;
     if (glslCaps->mustDeclareFragmentShaderOutput()) {
         oFragColor.appendDecl(glslCaps, &fshaderTxt);
         fshaderTxt.append(";\n");
         fsOutName = oFragColor.c_str();
     } else {
-        fsOutName = "gl_FragColor";
+        fsOutName = "sk_FragColor";
     }
 
 
     fshaderTxt.appendf(
             "void main()\n"
             "{\n"
             "    vec4 outputColor;\n"
             "    %s outputCoverage;\n"
             "    outputColor = vec4(%s, 1.0);\n"
             "    outputCoverage = %s;\n",
@@ skipping 134 matching lines @@
 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSetup, 2) )
 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetup, 2) )
 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSetup, 4) )
 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetup, 4) )
 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSetup, 6) )
 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetup, 6) )
 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseScalar_CoverageSetup, 8) )
 DEF_BENCH( return new GLVec4ScalarBench(GLVec4ScalarBench::kUseVec4_CoverageSetup, 8) )
 
 #endif