Make XPFragmentBuilder only Builder with access to DstCopy.

src/effects/gradients/SkTwoPointConicalGradient_gpu.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 "SkTwoPointConicalGradient_gpu.h"
 
@@ skipping 236 matching lines @@
     SkString p2; // difference in radii (r1 - r0)
 
     builder->getUniformVariable(fParamUni).appendArrayAccess(0, &p0);
     builder->getUniformVariable(fParamUni).appendArrayAccess(1, &p1);
     builder->getUniformVariable(fParamUni).appendArrayAccess(2, &p2);
 
     // We interpolate the linear component in coords[1].
     SkASSERT(coords[0].getType() == coords[1].getType());
     const char* coords2D;
     SkString bVar;
-    GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     if (kVec3f_GrSLType == coords[0].getType()) {
         fsBuilder->codeAppendf("\tvec3 interpolants = vec3(%s.xy / %s.z, %s.x / %s.z);\n",
                                coords[0].c_str(), coords[0].c_str(), coords[1].c_str(),
                                coords[1].c_str());
         coords2D = "interpolants.xy";
         bVar = "interpolants.z";
     } else {
         coords2D = coords[0].c_str();
         bVar.printf("%s.x", coords[1].c_str());
     }
@@ skipping 261 matching lines @@
                                          kFloat_GrSLType, kDefault_GrSLPrecision,
                                          "Conical2FSParams", 2);
     SkString tName("t");
     SkString p0; // focalX
     SkString p1; // 1 - focalX * focalX
 
     builder->getUniformVariable(fParamUni).appendArrayAccess(0, &p0);
     builder->getUniformVariable(fParamUni).appendArrayAccess(1, &p1);
 
     // if we have a vec3 from being in perspective, convert it to a vec2 first
-    GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     SkString coords2DString = fsBuilder->ensureFSCoords2D(coords, 0);
     const char* coords2D = coords2DString.c_str();
 
     // t = p.x * focal.x +/- sqrt(p.x^2 + (1 - focal.x^2) * p.y^2)
 
     // output will default to transparent black (we simply won't write anything
     // else to it if invalid, instead of discarding or returning prematurely)
     fsBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", outputColor);
 
     fsBuilder->codeAppendf("\tfloat xs = %s.x * %s.x;\n", coords2D, coords2D);
@@ skipping 195 matching lines @@
     fFocalUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                     kFloat_GrSLType, kDefault_GrSLPrecision,
                                     "Conical2FSParams");
     SkString tName("t");
 
     // this is the distance along x-axis from the end center to focal point in
     // transformed coordinates
     GrGLShaderVar focal = builder->getUniformVariable(fFocalUni);
 
     // if we have a vec3 from being in perspective, convert it to a vec2 first
-    GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     SkString coords2DString = fsBuilder->ensureFSCoords2D(coords, 0);
     const char* coords2D = coords2DString.c_str();
 
     // t = p.x * focalX + length(p)
     fsBuilder->codeAppendf("\tfloat %s = %s.x * %s  + length(%s);\n", tName.c_str(),
                            coords2D, focal.c_str(), coords2D);
 
     this->emitColor(builder, ge, tName.c_str(), outputColor, inputColor, samplers);
 }
 
@@ skipping 243 matching lines @@
                                     "Conical2FSParams");
     SkString tName("t");
 
     GrGLShaderVar center = builder->getUniformVariable(fCenterUni);
     // params.x = A
     // params.y = B
     // params.z = C
     GrGLShaderVar params = builder->getUniformVariable(fParamUni);
 
     // if we have a vec3 from being in perspective, convert it to a vec2 first
-    GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     SkString coords2DString = fsBuilder->ensureFSCoords2D(coords, 0);
     const char* coords2D = coords2DString.c_str();
 
     // p = coords2D
     // e = center end
     // r = radius end
     // A = dot(e, e) - r^2 + 2 * r - 1
     // B = (r -1) / A
     // C = 1 / A
     // d = dot(e, p) + B
@@ skipping 225 matching lines @@
                                     "Conical2FSParams");
     SkString tName("t");
 
     GrGLShaderVar center = builder->getUniformVariable(fCenterUni);
     // params.x = A
     // params.y = B
     // params.z = C
     GrGLShaderVar params = builder->getUniformVariable(fParamUni);
 
     // if we have a vec3 from being in perspective, convert it to a vec2 first
-    GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     SkString coords2DString = fsBuilder->ensureFSCoords2D(coords, 0);
     const char* coords2D = coords2DString.c_str();
 
     // output will default to transparent black (we simply won't write anything
     // else to it if invalid, instead of discarding or returning prematurely)
     fsBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", outputColor);
 
     // p = coords2D
     // e = center end
     // r = radius end
@@ skipping 96 matching lines @@
         return CircleInside2PtConicalEffect::Create(ctx, shader, matrix, tm, info);
     } else if (type == kEdge_ConicalType) {
         set_matrix_edge_conical(shader, &matrix);
         return Edge2PtConicalEffect::Create(ctx, shader, matrix, tm);
     } else {
         return CircleOutside2PtConicalEffect::Create(ctx, shader, matrix, tm, info);
     }
 }
 
 #endif