1 /*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "src/gpu/effects/GrOvalEffect.h"
9
10 #include "include/core/SkRect.h"
11 #include "src/gpu/effects/generated/GrCircleEffect.h"
12 #include "src/gpu/effects/generated/GrEllipseEffect.h"
13
Make(GrClipEdgeType edgeType,const SkRect & oval,const GrShaderCaps & caps)14 std::unique_ptr<GrFragmentProcessor> GrOvalEffect::Make(GrClipEdgeType edgeType, const SkRect& oval,
15 const GrShaderCaps& caps) {
16 if (GrClipEdgeType::kHairlineAA == edgeType) {
17 return nullptr;
18 }
19 SkScalar w = oval.width();
20 SkScalar h = oval.height();
21 if (SkScalarNearlyEqual(w, h)) {
22 w /= 2;
23 return GrCircleEffect::Make(edgeType, SkPoint::Make(oval.fLeft + w, oval.fTop + w),
24 w);
25 } else {
26 w /= 2;
27 h /= 2;
28 return GrEllipseEffect::Make(edgeType, SkPoint::Make(oval.fLeft + w, oval.fTop + h),
29 SkPoint::Make(w, h), caps);
30 }
31
32 return nullptr;
33 }
34