Add conic support to Default and AAConvex path redender.

src/gpu/GrAAConvexPathRenderer.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrAAConvexPathRenderer.h"
 
 #include "GrContext.h"
 #include "GrDrawState.h"
 #include "GrDrawTargetCaps.h"
 #include "GrGeometryProcessor.h"
 #include "GrInvariantOutput.h"
 #include "GrProcessor.h"
 #include "GrPathUtils.h"
+#include "SkGeometry.h"
 #include "SkString.h"
 #include "SkStrokeRec.h"
 #include "SkTraceEvent.h"
 #include "gl/GrGLProcessor.h"
 #include "gl/GrGLSL.h"
 #include "gl/GrGLGeometryProcessor.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 
 GrAAConvexPathRenderer::GrAAConvexPathRenderer() {
 }
@@ skipping 272 matching lines @@
                 update_degenerate_test(&degenerateData, pts[1]);
                 add_line_to_segment(pts[1], segments, devBounds);
                 break;
             }
             case SkPath::kQuad_Verb:
                 m.mapPoints(pts, 3);
                 update_degenerate_test(&degenerateData, pts[1]);
                 update_degenerate_test(&degenerateData, pts[2]);
                 add_quad_segment(pts, segments, devBounds);
                 break;
+            case SkPath::kConic_Verb: {
+                m.mapPoints(pts, 3);
+                SkScalar weight = iter.conicWeight();
+                SkAutoConicToQuads converter;
+                const SkPoint* quadPts = converter.computeQuads(pts, weight, 0.5f);
+                for (int i = 0; i < converter.countQuads(); ++i) {
+                    update_degenerate_test(&degenerateData, quadPts[2*i + 1]);
+                    update_degenerate_test(&degenerateData, quadPts[2*i + 2]);
+                    add_quad_segment(quadPts + 2*i, segments, devBounds);
+                }
+                break;
+            }
             case SkPath::kCubic_Verb: {
                 m.mapPoints(pts, 4);
                 update_degenerate_test(&degenerateData, pts[1]);
                 update_degenerate_test(&degenerateData, pts[2]);
                 update_degenerate_test(&degenerateData, pts[3]);
                 add_cubic_segments(pts, dir, segments, devBounds);
                 break;
             };
             case SkPath::kDone_Verb:
                 if (degenerateData.isDegenerate()) {
@@ skipping 449 matching lines @@
                             vOffset,  // start vertex
                             0,        // start index
                             draw.fVertexCnt,
                             draw.fIndexCnt,
                             &devBounds);
         vOffset += draw.fVertexCnt;
     }
 
     return true;
 }