Initial refactor of shaderbuilder

src/effects/SkAlphaThresholdFilter.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAlphaThresholdFilter.h"
 #include "SkBitmap.h"
 #include "SkReadBuffer.h"
@@ skipping 30 matching lines @@
                                               SkScalar outerThreshold,
                                               SkImageFilter* input) {
     return SkNEW_ARGS(SkAlphaThresholdFilterImpl, (region, innerThreshold, outerThreshold, input));
 }
 
 #if SK_SUPPORT_GPU
 #include "GrContext.h"
 #include "GrCoordTransform.h"
 #include "GrEffect.h"
 #include "gl/GrGLEffect.h"
-#include "gl/GrGLShaderBuilder.h"
+#include "gl/builders/GrGLProgramBuilder.h"
 #include "GrTBackendEffectFactory.h"
 #include "GrTextureAccess.h"
 
 #include "SkGr.h"
 
 class GrGLAlphaThresholdEffect;
 
 class AlphaThresholdEffect : public GrEffect {
 
 public:
@@ skipping 47 matching lines @@
     GrCoordTransform fMaskCoordTransform;
     GrTextureAccess  fMaskTextureAccess;
 
     typedef GrEffect INHERITED;
 };
 
 class GrGLAlphaThresholdEffect : public GrGLEffect {
 public:
     GrGLAlphaThresholdEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
 
-    virtual void emitCode(GrGLShaderBuilder*,
+    virtual void emitCode(GrGLProgramBuilder*,
                           const GrDrawEffect&,
                           const GrEffectKey&,
                           const char* outputColor,
                           const char* inputColor,
                           const TransformedCoordsArray&,
                           const TextureSamplerArray&) SK_OVERRIDE;
 
     virtual void setData(const GrGLProgramDataManager&, const GrDrawEffect&) SK_OVERRIDE;
 
 private:
 
     GrGLProgramDataManager::UniformHandle fInnerThresholdVar;
     GrGLProgramDataManager::UniformHandle fOuterThresholdVar;
 
     typedef GrGLEffect INHERITED;
 };
 
 GrGLAlphaThresholdEffect::GrGLAlphaThresholdEffect(const GrBackendEffectFactory& factory, const GrDrawEffect&)
     : INHERITED(factory) {
 }
 
-void GrGLAlphaThresholdEffect::emitCode(GrGLShaderBuilder* builder,
+void GrGLAlphaThresholdEffect::emitCode(GrGLProgramBuilder* builder,
                                         const GrDrawEffect&,
                                         const GrEffectKey& key,
                                         const char* outputColor,
                                         const char* inputColor,
                                         const TransformedCoordsArray& coords,
                                         const TextureSamplerArray& samplers) {
-    SkString coords2D = builder->ensureFSCoords2D(coords, 0);
-    SkString maskCoords2D = builder->ensureFSCoords2D(coords, 1);
     fInnerThresholdVar = builder->addUniform(
-        GrGLShaderBuilder::kFragment_Visibility,
+        GrGLProgramBuilder::kFragment_Visibility,
         kFloat_GrSLType, "inner_threshold");
     fOuterThresholdVar = builder->addUniform(
-        GrGLShaderBuilder::kFragment_Visibility,
+        GrGLProgramBuilder::kFragment_Visibility,
         kFloat_GrSLType, "outer_threshold");
 
-    builder->fsCodeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str());
-    builder->fsCodeAppendf("\t\tvec2 mask_coord = %s;\n", maskCoords2D.c_str());
-    builder->fsCodeAppend("\t\tvec4 input_color = ");
-    builder->fsAppendTextureLookup(samplers[0], "coord");
-    builder->fsCodeAppend(";\n");
-    builder->fsCodeAppend("\t\tvec4 mask_color = ");
-    builder->fsAppendTextureLookup(samplers[1], "mask_coord");
-    builder->fsCodeAppend(";\n");
+    GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    SkString coords2D = fsBuilder->ensureFSCoords2D(coords, 0);
+    SkString maskCoords2D = fsBuilder->ensureFSCoords2D(coords, 1);
 
-    builder->fsCodeAppendf("\t\tfloat inner_thresh = %s;\n",
+    fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str());
+    fsBuilder->codeAppendf("\t\tvec2 mask_coord = %s;\n", maskCoords2D.c_str());
+    fsBuilder->codeAppend("\t\tvec4 input_color = ");
+    fsBuilder->appendTextureLookup(samplers[0], "coord");
+    fsBuilder->codeAppend(";\n");
+    fsBuilder->codeAppend("\t\tvec4 mask_color = ");
+    fsBuilder->appendTextureLookup(samplers[1], "mask_coord");
+    fsBuilder->codeAppend(";\n");
+
+    fsBuilder->codeAppendf("\t\tfloat inner_thresh = %s;\n",
                            builder->getUniformCStr(fInnerThresholdVar));
-    builder->fsCodeAppendf("\t\tfloat outer_thresh = %s;\n",
+    fsBuilder->codeAppendf("\t\tfloat outer_thresh = %s;\n",
                            builder->getUniformCStr(fOuterThresholdVar));
-    builder->fsCodeAppend("\t\tfloat mask = mask_color.a;\n");
+    fsBuilder->codeAppend("\t\tfloat mask = mask_color.a;\n");
 
-    builder->fsCodeAppend("vec4 color = input_color;\n");
-    builder->fsCodeAppend("\t\tif (mask < 0.5) {\n"
+    fsBuilder->codeAppend("vec4 color = input_color;\n");
+    fsBuilder->codeAppend("\t\tif (mask < 0.5) {\n"
                           "\t\t\tif (color.a > outer_thresh) {\n"
                           "\t\t\t\tfloat scale = outer_thresh / color.a;\n"
                           "\t\t\t\tcolor.rgb *= scale;\n"
                           "\t\t\t\tcolor.a = outer_thresh;\n"
                           "\t\t\t}\n"
                           "\t\t} else if (color.a < inner_thresh) {\n"
                           "\t\t\tfloat scale = inner_thresh / max(0.001, color.a);\n"
                           "\t\t\tcolor.rgb *= scale;\n"
                           "\t\t\tcolor.a = inner_thresh;\n"
                           "\t\t}\n");
 
-    builder->fsCodeAppendf("%s = %s;\n", outputColor,
+    fsBuilder->codeAppendf("%s = %s;\n", outputColor,
                            (GrGLSLExpr4(inputColor) * GrGLSLExpr4("color")).c_str());
 }
 
 void GrGLAlphaThresholdEffect::setData(const GrGLProgramDataManager& pdman,
                                   const GrDrawEffect& drawEffect) {
     const AlphaThresholdEffect& alpha_threshold =
         drawEffect.castEffect<AlphaThresholdEffect>();
     pdman.set1f(fInnerThresholdVar, alpha_threshold.innerThreshold());
     pdman.set1f(fOuterThresholdVar, alpha_threshold.outerThreshold());
 }
@@ skipping 164 matching lines @@
                                                   (U8CPU)(SkColorGetG(source) * scale),
                                                   (U8CPU)(SkColorGetB(source) * scale));
                 }
             }
             dptr[y * dst->width() + x] = output_color;
         }
     }
 
     return true;
 }