Expand modulate, add, subtract, extract component glsl helpers.

src/gpu/effects/GrSimpleTextureEffect.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrSimpleTextureEffect.h"
 #include "gl/GrGLEffect.h"
 #include "gl/GrGLEffectMatrix.h"
@@ skipping 23 matching lines @@
         const char* fsCoordName;
         GrSLType fsCoordSLType;
         if (GrEffect::kCustom_CoordsType == ste.coordsType()) {
             GrAssert(ste.getMatrix().isIdentity());
             GrAssert(1 == ste.numVertexAttribs());
             fsCoordSLType = kVec2f_GrSLType;
             const char* vsVaryingName;
             builder->addVarying(kVec2f_GrSLType, "textureCoords", &vsVaryingName, &fsCoordName);
             const char* attrName =
                 builder->getEffectAttributeName(drawEffect.getVertexAttribIndices()[0])->c_str();
-            builder->vsCodeAppendf("\t%s = %s;", vsVaryingName, attrName);
+            builder->vsCodeAppendf("\t%s = %s;\n", vsVaryingName, attrName);
         } else {
             fsCoordSLType = fEffectMatrix.get()->emitCode(builder, key, &fsCoordName);
         }
         builder->fsCodeAppendf("\t%s = ", outputColor);
         builder->appendTextureLookupAndModulate(GrGLShaderBuilder::kFragment_ShaderType,
                                                 inputColor,
                                                 samplers[0],
                                                 fsCoordName,
                                                 fsCoordSLType);
         builder->fsCodeAppend(";\n");
@@ skipping 64 matching lines @@
     };
     CoordsType coordsType = kCoordsTypes[random->nextULessThan(GR_ARRAY_COUNT(kCoordsTypes))];
 
     if (kCustom_CoordsType == coordsType) {
         return GrSimpleTextureEffect::CreateWithCustomCoords(textures[texIdx], params);
     } else {
         const SkMatrix& matrix = GrEffectUnitTest::TestMatrix(random);
         return GrSimpleTextureEffect::Create(textures[texIdx], matrix);
     }
 }