1 /*
2 * Copyright 2018 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 "gm/gm.h"
9 #include "include/core/SkBlendMode.h"
10 #include "include/core/SkBlurTypes.h"
11 #include "include/core/SkCanvas.h"
12 #include "include/core/SkColor.h"
13 #include "include/core/SkCoverageMode.h"
14 #include "include/core/SkFont.h"
15 #include "include/core/SkImage.h"
16 #include "include/core/SkImageFilter.h"
17 #include "include/core/SkImageInfo.h"
18 #include "include/core/SkMaskFilter.h"
19 #include "include/core/SkMatrix.h"
20 #include "include/core/SkPaint.h"
21 #include "include/core/SkPath.h"
22 #include "include/core/SkPicture.h"
23 #include "include/core/SkPictureRecorder.h"
24 #include "include/core/SkPoint.h"
25 #include "include/core/SkRect.h"
26 #include "include/core/SkRefCnt.h"
27 #include "include/core/SkScalar.h"
28 #include "include/core/SkShader.h"
29 #include "include/core/SkString.h"
30 #include "include/core/SkSurface.h"
31 #include "include/core/SkTileMode.h"
32 #include "include/core/SkTypes.h"
33 #include "include/effects/SkGradientShader.h"
34 #include "include/effects/SkImageFilters.h"
35 #include "include/effects/SkShaderMaskFilter.h"
36 #include "include/utils/SkTextUtils.h"
37 #include "src/core/SkBlendModePriv.h"
38 #include "tools/Resources.h"
39 #include "tools/ToolUtils.h"
40
41 #include <initializer_list>
42
make_shader(const SkRect & r)43 static sk_sp<SkShader> make_shader(const SkRect& r) {
44 const SkPoint pts[] = {
45 { r.fLeft, r.fTop }, { r.fRight, r.fBottom },
46 };
47 const SkColor colors[] = { 0, SK_ColorWHITE };
48 return SkGradientShader::MakeLinear(pts, colors, nullptr, 2, SkTileMode::kRepeat);
49 }
50
51 DEF_SIMPLE_GM(shadermaskfilter_gradient, canvas, 512, 512) {
52 SkRect r = { 0, 0, 100, 150 };
53 auto shader = make_shader(r);
54 auto mf = SkShaderMaskFilter::Make(shader);
55
56 canvas->translate(20, 20);
57 canvas->scale(2, 2);
58
59 SkPaint paint;
60 paint.setMaskFilter(mf);
61 paint.setColor(SK_ColorRED);
62 paint.setAntiAlias(true);
63 canvas->drawOval(r, paint);
64 }
65