Add ShaderBuilders to EmitArgs and remove gettings from ProgBuilder.

src/gpu/effects/GrBicubicEffect.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrBicubicEffect.h"
 #include "GrInvariantOutput.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
@@ skipping 54 matching lines @@
     SkString cubicBlendName;
 
     static const GrGLSLShaderVar gCubicBlendArgs[] = {
         GrGLSLShaderVar("coefficients",  kMat44f_GrSLType),
         GrGLSLShaderVar("t",             kFloat_GrSLType),
         GrGLSLShaderVar("c0",            kVec4f_GrSLType),
         GrGLSLShaderVar("c1",            kVec4f_GrSLType),
         GrGLSLShaderVar("c2",            kVec4f_GrSLType),
         GrGLSLShaderVar("c3",            kVec4f_GrSLType),
     };
-    GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
-    SkString coords2D = fsBuilder->ensureFSCoords2D(args.fCoords, 0);
-    fsBuilder->emitFunction(kVec4f_GrSLType,
-                            "cubicBlend",
-                            SK_ARRAY_COUNT(gCubicBlendArgs),
-                            gCubicBlendArgs,
-                            "\tvec4 ts = vec4(1.0, t, t * t, t * t * t);\n"
-                            "\tvec4 c = coefficients * ts;\n"
-                            "\treturn c.x * c0 + c.y * c1 + c.z * c2 + c.w * c3;\n",
-                            &cubicBlendName);
-    fsBuilder->codeAppendf("\tvec2 coord = %s - %s * vec2(0.5);\n", coords2D.c_str(), imgInc);
+    GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+    SkString coords2D = fragBuilder->ensureFSCoords2D(args.fCoords, 0);
+    fragBuilder->emitFunction(kVec4f_GrSLType,
+                              "cubicBlend",
+                              SK_ARRAY_COUNT(gCubicBlendArgs),
+                              gCubicBlendArgs,
+                              "\tvec4 ts = vec4(1.0, t, t * t, t * t * t);\n"
+                              "\tvec4 c = coefficients * ts;\n"
+                              "\treturn c.x * c0 + c.y * c1 + c.z * c2 + c.w * c3;\n",
+                              &cubicBlendName);
+    fragBuilder->codeAppendf("\tvec2 coord = %s - %s * vec2(0.5);\n", coords2D.c_str(), imgInc);
     // We unnormalize the coord in order to determine our fractional offset (f) within the texel
     // We then snap coord to a texel center and renormalize. The snap prevents cases where the
     // starting coords are near a texel boundary and accumulations of imgInc would cause us to skip/
     // double hit a texel.
-    fsBuilder->codeAppendf("\tcoord /= %s;\n", imgInc);
-    fsBuilder->codeAppend("\tvec2 f = fract(coord);\n");
-    fsBuilder->codeAppendf("\tcoord = (coord - f + vec2(0.5)) * %s;\n", imgInc);
-    fsBuilder->codeAppend("\tvec4 rowColors[4];\n");
+    fragBuilder->codeAppendf("\tcoord /= %s;\n", imgInc);
+    fragBuilder->codeAppend("\tvec2 f = fract(coord);\n");
+    fragBuilder->codeAppendf("\tcoord = (coord - f + vec2(0.5)) * %s;\n", imgInc);
+    fragBuilder->codeAppend("\tvec4 rowColors[4];\n");
     for (int y = 0; y < 4; ++y) {
         for (int x = 0; x < 4; ++x) {
             SkString coord;
             coord.printf("coord + %s * vec2(%d, %d)", imgInc, x - 1, y - 1);
             SkString sampleVar;
             sampleVar.printf("rowColors[%d]", x);
-            fDomain.sampleTexture(fsBuilder, domain, sampleVar.c_str(), coord, args.fSamplers[0]);
+            fDomain.sampleTexture(fragBuilder, domain, sampleVar.c_str(), coord, args.fSamplers[0]);
         }
-        fsBuilder->codeAppendf("\tvec4 s%d = %s(%s, f.x, rowColors[0], rowColors[1], rowColors[2], rowColors[3]);\n", y, cubicBlendName.c_str(), coeff);
+        fragBuilder->codeAppendf(
+            "\tvec4 s%d = %s(%s, f.x, rowColors[0], rowColors[1], rowColors[2], rowColors[3]);\n",
+            y, cubicBlendName.c_str(), coeff);
     }
     SkString bicubicColor;
     bicubicColor.printf("%s(%s, f.y, s0, s1, s2, s3)", cubicBlendName.c_str(), coeff);
-    fsBuilder->codeAppendf("\t%s = %s;\n", args.fOutputColor,(GrGLSLExpr4(bicubicColor.c_str()) *
-                           GrGLSLExpr4(args.fInputColor)).c_str());
+    fragBuilder->codeAppendf("\t%s = %s;\n",
+                             args.fOutputColor, (GrGLSLExpr4(bicubicColor.c_str()) *
+                                                 GrGLSLExpr4(args.fInputColor)).c_str());
 }
 
 void GrGLBicubicEffect::onSetData(const GrGLSLProgramDataManager& pdman,
                                   const GrProcessor& processor) {
     const GrBicubicEffect& bicubicEffect = processor.cast<GrBicubicEffect>();
     const GrTexture& texture = *processor.texture(0);
     float imageIncrement[2];
     imageIncrement[0] = 1.0f / texture.width();
     imageIncrement[1] = 1.0f / texture.height();
     pdman.set2fv(fImageIncrementUni, 1, imageIncrement);
@@ skipping 91 matching lines @@
             // Use bilerp to handle rotation or fractional translation.
             *filterMode = GrTextureParams::kBilerp_FilterMode;
         }
         return false;
     }
     // When we use the bicubic filtering effect each sample is read from the texture using
     // nearest neighbor sampling.
     *filterMode = GrTextureParams::kNone_FilterMode;
     return true;
 }