Make onPrepareDraws const

gm/beziereffects.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.
  */
 
 // This test only works with the GPU backend.
 
@@ skipping 52 matching lines @@
     Geometry* geoData(int index) override {
         SkASSERT(0 == index);
         return &fGeometry;
     }
 
     const Geometry* geoData(int index) const override {
         SkASSERT(0 == index);
         return &fGeometry;
     }
 
-    void generateGeometry(Target* target) override {
+    void generateGeometry(Target* target) const override {
         QuadHelper helper;
         size_t vertexStride = this->geometryProcessor()->getVertexStride();
         SkASSERT(vertexStride == sizeof(Vertex));
         Vertex* verts = reinterpret_cast<Vertex*>(helper.init(target, vertexStride, 1));
         if (!verts) {
             return;
         }
 
         verts[0].fPosition.setRectFan(fGeometry.fBounds.fLeft, fGeometry.fBounds.fTop,
                                       fGeometry.fBounds.fRight, fGeometry.fBounds.fBottom,
@@ skipping 379 matching lines @@
     Geometry* geoData(int index) override {
         SkASSERT(0 == index);
         return &fGeometry;
     }
 
     const Geometry* geoData(int index) const override {
         SkASSERT(0 == index);
         return &fGeometry;
     }
 
-    void generateGeometry(Target* target) override {
+    void generateGeometry(Target* target) const override {
         QuadHelper helper;
         size_t vertexStride = this->geometryProcessor()->getVertexStride();
         SkASSERT(vertexStride == sizeof(Vertex));
         Vertex* verts = reinterpret_cast<Vertex*>(helper.init(target, vertexStride, 1));
         if (!verts) {
             return;
         }
         verts[0].fPosition.setRectFan(fGeometry.fBounds.fLeft, fGeometry.fBounds.fTop,
                                       fGeometry.fBounds.fRight, fGeometry.fBounds.fBottom,
                                       sizeof(Vertex));
@@ skipping 151 matching lines @@
 private:
     typedef GM INHERITED;
 };
 
 DEF_GM(return new BezierCubicEffects;)
 DEF_GM(return new BezierConicEffects;)
 DEF_GM(return new BezierQuadEffects;)
 }
 
 #endif