Add more specialized fragment builders

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 227 matching lines @@
     SkString p2; // difference in radii (r1 - r0)
 
     uniformHandler->getUniformVariable(fParamUni).appendArrayAccess(0, &p0);
     uniformHandler->getUniformVariable(fParamUni).appendArrayAccess(1, &p1);
     uniformHandler->getUniformVariable(fParamUni).appendArrayAccess(2, &p2);
 
     // We interpolate the linear component in coords[1].
     SkASSERT(args.fCoords[0].getType() == args.fCoords[1].getType());
     const char* coords2D;
     SkString bVar;
-    GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+    GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     if (kVec3f_GrSLType == args.fCoords[0].getType()) {
         fragBuilder->codeAppendf("\tvec3 interpolants = vec3(%s.xy / %s.z, %s.x / %s.z);\n",
                                args.fCoords[0].c_str(), args.fCoords[0].c_str(),
                                args.fCoords[1].c_str(), args.fCoords[1].c_str());
         coords2D = "interpolants.xy";
         bVar = "interpolants.z";
     } else {
         coords2D = args.fCoords[0].c_str();
         bVar.printf("%s.x", args.fCoords[1].c_str());
     }
@@ skipping 255 matching lines @@
                                                 kFloat_GrSLType, kDefault_GrSLPrecision,
                                                 "Conical2FSParams", 2);
     SkString tName("t");
     SkString p0; // focalX
     SkString p1; // 1 - focalX * focalX
 
     uniformHandler->getUniformVariable(fParamUni).appendArrayAccess(0, &p0);
     uniformHandler->getUniformVariable(fParamUni).appendArrayAccess(1, &p1);
 
     // if we have a vec3 from being in perspective, convert it to a vec2 first
-    GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+    GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     SkString coords2DString = fragBuilder->ensureFSCoords2D(args.fCoords, 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)
     fragBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", args.fOutputColor);
 
     fragBuilder->codeAppendf("\tfloat xs = %s.x * %s.x;\n", coords2D, coords2D);
@@ skipping 188 matching lines @@
     fFocalUni = uniformHandler->addUniform(kFragment_GrShaderFlag,
                                            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
     GrGLSLShaderVar focal = uniformHandler->getUniformVariable(fFocalUni);
 
     // if we have a vec3 from being in perspective, convert it to a vec2 first
-    GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+    GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     SkString coords2DString = fragBuilder->ensureFSCoords2D(args.fCoords, 0);
     const char* coords2D = coords2DString.c_str();
 
     // t = p.x * focalX + length(p)
     fragBuilder->codeAppendf("\tfloat %s = %s.x * %s  + length(%s);\n", tName.c_str(),
                              coords2D, focal.c_str(), coords2D);
 
     this->emitColor(fragBuilder,
                     uniformHandler,
                     args.fGLSLCaps,
@@ skipping 236 matching lines @@
                                            "Conical2FSParams");
     SkString tName("t");
 
     GrGLSLShaderVar center = uniformHandler->getUniformVariable(fCenterUni);
     // params.x = A
     // params.y = B
     // params.z = C
     GrGLSLShaderVar params = uniformHandler->getUniformVariable(fParamUni);
 
     // if we have a vec3 from being in perspective, convert it to a vec2 first
-    GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+    GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     SkString coords2DString = fragBuilder->ensureFSCoords2D(args.fCoords, 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 216 matching lines @@
                                            "Conical2FSParams");
     SkString tName("t");
 
     GrGLSLShaderVar center = uniformHandler->getUniformVariable(fCenterUni);
     // params.x = A
     // params.y = B
     // params.z = C
     GrGLSLShaderVar params = uniformHandler->getUniformVariable(fParamUni);
 
     // if we have a vec3 from being in perspective, convert it to a vec2 first
-    GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+    GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     SkString coords2DString = fragBuilder->ensureFSCoords2D(args.fCoords, 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)
     fragBuilder->codeAppendf("\t%s = vec4(0.0,0.0,0.0,0.0);\n", args.fOutputColor);
 
     // p = coords2D
     // e = center end
     // r = radius end
@@ skipping 104 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