Fix GaussianEdgeShader GLSL code

src/effects/SkGaussianEdgeShader.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGaussianEdgeShader.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
@@ skipping 68 matching lines @@
     public:
         GLSLGaussianEdgeFP(bool largerBlur) : fLargerBlur(largerBlur) {}
 
         void emitCode(EmitArgs& args) override {
             GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
 
             if (!args.fGpImplementsDistanceVector) {
                 fragBuilder->codeAppendf("// GP does not implement fsDistanceVector - "
                                          " returning grey in GLSLGaussianEdgeFP\n");
                 fragBuilder->codeAppendf("vec4 color = %s;", args.fInputColor);
-                fragBuilder->codeAppendf("%s = vec4(0, 0, 0, color.r);", args.fOutputColor);
+                fragBuilder->codeAppendf("%s = vec4(0.0, 0.0, 0.0, color.r);", args.fOutputColor);
             } else if (fLargerBlur) {
                 fragBuilder->codeAppendf("vec4 color = %s;", args.fInputColor);
-                fragBuilder->codeAppend("float radius = color.r*256*64 + color.g*64;");
-                fragBuilder->codeAppend("float pad = color.b*64;");
+                fragBuilder->codeAppend("float radius = color.r*256.0*64.0 + color.g*64.0;");
+                fragBuilder->codeAppend("float pad = color.b*64.0;");
 
-                fragBuilder->codeAppendf("float factor = 1 - clamp((%s.z - pad)/radius, 0, 1);",
+                fragBuilder->codeAppendf("float factor = 1.0 - clamp((%s.z - pad)/radius, 0.0, 1.0);",

[egdaniel, 2016/09/12 17:07:00]

100 chars

                                          fragBuilder->distanceVectorName());
-                fragBuilder->codeAppend("factor = exp(-factor * factor * 4) - 0.018;");
-                fragBuilder->codeAppendf("%s = factor*vec4(0, 0, 0, color.a);",
+                fragBuilder->codeAppend("factor = exp(-factor * factor * 4.0) - 0.018;");
+                fragBuilder->codeAppendf("%s = factor*vec4(0.0, 0.0, 0.0, color.a);",
                                          args.fOutputColor);
             } else {
                 fragBuilder->codeAppendf("vec4 color = %s;", args.fInputColor);
-                fragBuilder->codeAppend("float radius = color.g*64;");
-                fragBuilder->codeAppend("float pad = color.b*64;");
+                fragBuilder->codeAppend("float radius = color.g*64.0;");
+                fragBuilder->codeAppend("float pad = color.b*64.0;");
 
-                fragBuilder->codeAppendf("float factor = 1 - clamp((%s.z - pad)/radius, 0, 1);",
+                fragBuilder->codeAppendf("float factor = 1.0 - clamp((%s.z - pad)/radius, 0.0, 1.0);",

[egdaniel, 2016/09/12 17:07:00]

100chars

                                          fragBuilder->distanceVectorName());
-                fragBuilder->codeAppend("factor = exp(-factor * factor * 4) - 0.018;");
-                fragBuilder->codeAppendf("%s = factor*vec4(0, 0, 0, color.r);",
+                fragBuilder->codeAppend("factor = exp(-factor * factor * 4.0) - 0.018;");
+                fragBuilder->codeAppendf("%s = factor*vec4(0.0, 0.0, 0.0, color.r);",
                                          args.fOutputColor);
             }
         }
 
         static void GenKey(const GrProcessor& proc, const GrGLSLCaps&,
                            GrProcessorKeyBuilder* b) {
             const GaussianEdgeFP& gefp = proc.cast<GaussianEdgeFP>();
             b->add32(gefp.fLargerBlur ? 0x1 : 0x0);
         }
 
@@ skipping 58 matching lines @@
     return sk_make_sp<SkGaussianEdgeShaderImpl>(largerBlur);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkGaussianEdgeShader)
 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkGaussianEdgeShaderImpl)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END
 
 ///////////////////////////////////////////////////////////////////////////////