Added GrGLFragmentProcessor::EmitArgs struct for use with emitCode()

src/effects/SkBlurMaskFilter.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBlurMaskFilter.h"
 #include "SkBlurMask.h"
@@ skipping 646 matching lines @@
     GrTextureAccess fBlurProfileAccess;
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     typedef GrFragmentProcessor INHERITED;
 };
 
 class GrGLRectBlurEffect : public GrGLFragmentProcessor {
 public:
     GrGLRectBlurEffect(const GrProcessor&) {}
-    virtual void emitCode(GrGLFPBuilder*,
-                          const GrFragmentProcessor&,
-                          const char* outputColor,
-                          const char* inputColor,
-                          const TransformedCoordsArray&,
-                          const TextureSamplerArray&) override;
+    virtual void emitCode(EmitArgs&) override;
 
     void setData(const GrGLProgramDataManager&, const GrProcessor&) override;
 
 private:
     typedef GrGLProgramDataManager::UniformHandle UniformHandle;
 
     UniformHandle       fProxyRectUniform;
     UniformHandle       fProfileSizeUniform;
 
     typedef GrGLFragmentProcessor INHERITED;
 };
 
 void OutputRectBlurProfileLookup(GrGLFragmentBuilder* fsBuilder,
                                  const GrGLShaderBuilder::TextureSampler& sampler,
                                  const char *output,
                                  const char *profileSize, const char *loc,
                                  const char *blurred_width,
                                  const char *sharp_width) {
     fsBuilder->codeAppendf("\tfloat %s;\n", output);
     fsBuilder->codeAppendf("\t\t{\n");
     fsBuilder->codeAppendf("\t\t\tfloat coord = (0.5 * (abs(2.0*%s - %s) - %s))/%s;\n",
                            loc, blurred_width, sharp_width, profileSize);
     fsBuilder->codeAppendf("\t\t\t%s = ", output);
     fsBuilder->appendTextureLookup(sampler, "vec2(coord,0.5)");
     fsBuilder->codeAppend(".a;\n");
     fsBuilder->codeAppendf("\t\t}\n");
 }
 
-void GrGLRectBlurEffect::emitCode(GrGLFPBuilder* builder,
-                                 const GrFragmentProcessor&,
-                                 const char* outputColor,
-                                 const char* inputColor,
-                                 const TransformedCoordsArray& coords,
-                                 const TextureSamplerArray& samplers) {
+void GrGLRectBlurEffect::emitCode(EmitArgs& args) {
 
     const char *rectName;
     const char *profileSizeName;
 
-    fProxyRectUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
+    fProxyRectUniform = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                             kVec4f_GrSLType,
                                             kDefault_GrSLPrecision,
                                             "proxyRect",
                                             &rectName);
-    fProfileSizeUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
+    fProfileSizeUniform = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                             kFloat_GrSLType,
                                             kDefault_GrSLPrecision,
                                             "profileSize",
                                             &profileSizeName);
 
-    GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
     const char *fragmentPos = fsBuilder->fragmentPosition();
 
-    if (inputColor) {
-        fsBuilder->codeAppendf("\tvec4 src=%s;\n", inputColor);
+    if (args.fInputColor) {
+        fsBuilder->codeAppendf("\tvec4 src=%s;\n", args.fInputColor);
     } else {
         fsBuilder->codeAppendf("\tvec4 src=vec4(1)\n;");
     }
 
     fsBuilder->codeAppendf("\tvec2 translatedPos = %s.xy - %s.xy;\n", fragmentPos, rectName );
     fsBuilder->codeAppendf("\tfloat width = %s.z - %s.x;\n", rectName, rectName);
     fsBuilder->codeAppendf("\tfloat height = %s.w - %s.y;\n", rectName, rectName);
 
     fsBuilder->codeAppendf("\tvec2 smallDims = vec2(width - %s, height-%s);\n", profileSizeName, profileSizeName);
     fsBuilder->codeAppendf("\tfloat center = 2.0 * floor(%s/2.0 + .25) - 1.0;\n", profileSizeName);
     fsBuilder->codeAppendf("\tvec2 wh = smallDims - vec2(center,center);\n");
 
-    OutputRectBlurProfileLookup(fsBuilder, samplers[0], "horiz_lookup", profileSizeName, "translatedPos.x", "width", "wh.x");
-    OutputRectBlurProfileLookup(fsBuilder, samplers[0], "vert_lookup", profileSizeName, "translatedPos.y", "height", "wh.y");
+    OutputRectBlurProfileLookup(fsBuilder, args.fSamplers[0], "horiz_lookup", profileSizeName,
+                                "translatedPos.x", "width", "wh.x");
+    OutputRectBlurProfileLookup(fsBuilder, args.fSamplers[0], "vert_lookup", profileSizeName,
+                                "translatedPos.y", "height", "wh.y");
 
     fsBuilder->codeAppendf("\tfloat final = horiz_lookup * vert_lookup;\n");
-    fsBuilder->codeAppendf("\t%s = src * final;\n", outputColor );
+    fsBuilder->codeAppendf("\t%s = src * final;\n", args.fOutputColor );
 }
 
 void GrGLRectBlurEffect::setData(const GrGLProgramDataManager& pdman,
                                  const GrProcessor& proc) {
     const GrRectBlurEffect& rbe = proc.cast<GrRectBlurEffect>();
     SkRect rect = rbe.getRect();
 
     pdman.set4f(fProxyRectUniform, rect.fLeft, rect.fTop, rect.fRight, rect.fBottom);
     pdman.set1f(fProfileSizeUniform, SkScalarCeilToScalar(6*rbe.getSigma()));
 }
@@ skipping 258 matching lines @@
     rrect.setRectXY(SkRect::MakeWH(w, h), r, r);
     return GrRRectBlurEffect::Create(d->fContext->textureProvider(), sigma, rrect);
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 class GrGLRRectBlurEffect : public GrGLFragmentProcessor {
 public:
     GrGLRRectBlurEffect(const GrProcessor&) {}
 
-    virtual void emitCode(GrGLFPBuilder*,
-                          const GrFragmentProcessor&,
-                          const char* outputColor,
-                          const char* inputColor,
-                          const TransformedCoordsArray&,
-                          const TextureSamplerArray&) override;
+    virtual void emitCode(EmitArgs&) override;
 
     void setData(const GrGLProgramDataManager&, const GrProcessor&) override;
 
 private:
     GrGLProgramDataManager::UniformHandle fProxyRectUniform;
     GrGLProgramDataManager::UniformHandle fCornerRadiusUniform;
     GrGLProgramDataManager::UniformHandle fBlurRadiusUniform;
     typedef GrGLFragmentProcessor INHERITED;
 };
 
-void GrGLRRectBlurEffect::emitCode(GrGLFPBuilder* builder,
-                                   const GrFragmentProcessor&,
-                                   const char* outputColor,
-                                   const char* inputColor,
-                                   const TransformedCoordsArray&,
-                                   const TextureSamplerArray& samplers) {
+void GrGLRRectBlurEffect::emitCode(EmitArgs& args) {
     const char *rectName;
     const char *cornerRadiusName;
     const char *blurRadiusName;
 
     // The proxy rect has left, top, right, and bottom edges correspond to
     // components x, y, z, and w, respectively.
 
-    fProxyRectUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
+    fProxyRectUniform = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                             kVec4f_GrSLType,
                                             kDefault_GrSLPrecision,
                                             "proxyRect",
                                             &rectName);
-    fCornerRadiusUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
+    fCornerRadiusUniform = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                                kFloat_GrSLType,
                                                kDefault_GrSLPrecision,
                                                "cornerRadius",
                                                &cornerRadiusName);
-    fBlurRadiusUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
+    fBlurRadiusUniform = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                              kFloat_GrSLType,
                                               kDefault_GrSLPrecision,
                                               "blurRadius",
                                               &blurRadiusName);
 
-    GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
     const char* fragmentPos = fsBuilder->fragmentPosition();
 
     // warp the fragment position to the appropriate part of the 9patch blur texture
 
     fsBuilder->codeAppendf("\t\tvec2 rectCenter = (%s.xy + %s.zw)/2.0;\n", rectName, rectName);
     fsBuilder->codeAppendf("\t\tvec2 translatedFragPos = %s.xy - %s.xy;\n", fragmentPos, rectName);
     fsBuilder->codeAppendf("\t\tfloat threshold = %s + 2.0*%s;\n", cornerRadiusName, blurRadiusName );
     fsBuilder->codeAppendf("\t\tvec2 middle = %s.zw - %s.xy - 2.0*threshold;\n", rectName, rectName );
 
     fsBuilder->codeAppendf("\t\tif (translatedFragPos.x >= threshold && translatedFragPos.x < (middle.x+threshold)) {\n" );
     fsBuilder->codeAppendf("\t\t\ttranslatedFragPos.x = threshold;\n");
     fsBuilder->codeAppendf("\t\t} else if (translatedFragPos.x >= (middle.x + threshold)) {\n");
     fsBuilder->codeAppendf("\t\t\ttranslatedFragPos.x -= middle.x - 1.0;\n");
     fsBuilder->codeAppendf("\t\t}\n");
 
     fsBuilder->codeAppendf("\t\tif (translatedFragPos.y > threshold && translatedFragPos.y < (middle.y+threshold)) {\n" );
     fsBuilder->codeAppendf("\t\t\ttranslatedFragPos.y = threshold;\n");
     fsBuilder->codeAppendf("\t\t} else if (translatedFragPos.y >= (middle.y + threshold)) {\n");
     fsBuilder->codeAppendf("\t\t\ttranslatedFragPos.y -= middle.y - 1.0;\n");
     fsBuilder->codeAppendf("\t\t}\n");
 
     fsBuilder->codeAppendf("\t\tvec2 proxyDims = vec2(2.0*threshold+1.0);\n");
     fsBuilder->codeAppendf("\t\tvec2 texCoord = translatedFragPos / proxyDims;\n");
 
-    fsBuilder->codeAppendf("\t%s = ", outputColor);
-    fsBuilder->appendTextureLookupAndModulate(inputColor, samplers[0], "texCoord");
+    fsBuilder->codeAppendf("\t%s = ", args.fOutputColor);
+    fsBuilder->appendTextureLookupAndModulate(args.fInputColor, args.fSamplers[0], "texCoord");
     fsBuilder->codeAppend(";\n");
 }
 
 void GrGLRRectBlurEffect::setData(const GrGLProgramDataManager& pdman,
                                   const GrProcessor& proc) {
     const GrRRectBlurEffect& brre = proc.cast<GrRRectBlurEffect>();
     SkRRect rrect = brre.getRRect();
 
     float blurRadius = 3.f*SkScalarCeilToScalar(brre.getSigma()-1/6.0f);
     pdman.set1f(fBlurRadiusUniform, blurRadius);
@@ skipping 177 matching lines @@
     } else {
         str->append("None");
     }
     str->append("))");
 }
 #endif
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkBlurMaskFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBlurMaskFilterImpl)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END