handle null vertex or index buffers in batch

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 58 matching lines @@
         size_t vertexStride = this->geometryProcessor()->getVertexStride();
 
         const GrVertexBuffer* vertexBuffer;
         int firstVertex;
 
         void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
                                                               kVertsPerCubic,
                                                               &vertexBuffer,
                                                               &firstVertex);
 
+        if (!vertices || !batchTarget->quadIndexBuffer()) {
+            SkDebugf("Could not allocate buffers\n");
+            return;
+        }
+
         SkASSERT(vertexStride == sizeof(Vertex));
         Vertex* verts = reinterpret_cast<Vertex*>(vertices);
 
         verts[0].fPosition.setRectFan(fGeometry.fBounds.fLeft, fGeometry.fBounds.fTop,
                                       fGeometry.fBounds.fRight, fGeometry.fBounds.fBottom,
                                       sizeof(Vertex));
         for (int v = 0; v < 4; ++v) {
             verts[v].fKLM[0] = eval_line(verts[v].fPosition, fKlmEqs + 0, fSign);
             verts[v].fKLM[1] = eval_line(verts[v].fPosition, fKlmEqs + 3, fSign);
             verts[v].fKLM[2] = eval_line(verts[v].fPosition, fKlmEqs + 6, 1.f);
@@ skipping 382 matching lines @@
         size_t vertexStride = this->geometryProcessor()->getVertexStride();
 
         const GrVertexBuffer* vertexBuffer;
         int firstVertex;
 
         void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
                                                               kVertsPerCubic,
                                                               &vertexBuffer,
                                                               &firstVertex);
 
+        if (!vertices || !batchTarget->quadIndexBuffer()) {
+            SkDebugf("Could not allocate buffers\n");
+            return;
+        }
+
         SkASSERT(vertexStride == sizeof(Vertex));
         Vertex* verts = reinterpret_cast<Vertex*>(vertices);
 
         verts[0].fPosition.setRectFan(fGeometry.fBounds.fLeft, fGeometry.fBounds.fTop,
                                       fGeometry.fBounds.fRight, fGeometry.fBounds.fBottom,
                                       sizeof(Vertex));
 
         fDevToUV.apply<4, sizeof(Vertex), sizeof(SkPoint)>(verts);
 
 
@@ skipping 155 matching lines @@
     typedef GM INHERITED;
 };
 
 DEF_GM( return SkNEW(BezierCubicEffects); )
 DEF_GM( return SkNEW(BezierConicEffects); )
 DEF_GM( return SkNEW(BezierQuadEffects); )
 
 }
 
 #endif