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1 | |
2 /* | |
3 * Copyright 2014 Google Inc. | |
4 * | |
5 * Use of this source code is governed by a BSD-style license that can be | |
6 * found in the LICENSE file. | |
7 */ | |
8 #include "gm.h" | |
9 | |
10 #include "Resources.h" | |
tfarina
2014/10/30 15:30:16
looks like it is unused after make_bm().
| |
11 #include "SkBitmap.h" | |
12 #include "SkImageDecoder.h" | |
13 #include "SkPaint.h" | |
14 #include "SkShader.h" | |
15 #include "SkStream.h" | |
16 | |
17 | |
18 /*** | |
19 * | |
20 * This GM reproduces Skia bug 2904, in which a tiled bitmap shader was failing to draw correctly | |
21 * when fractional image scaling was ignored by the high quality bitmap scaler. | |
22 * | |
23 ***/ | |
24 | |
25 namespace skiagm { | |
26 | |
27 class TiledScaledBitmapGM : public GM { | |
28 public: | |
29 | |
30 TiledScaledBitmapGM() { | |
31 } | |
32 | |
33 protected: | |
34 virtual SkString onShortName() { | |
tfarina
2014/10/30 15:30:16
SK_OVERRIDE?
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35 return SkString("tiledscaledbitmap"); | |
36 } | |
37 | |
38 virtual SkISize onISize() { | |
tfarina
2014/10/30 15:30:16
SK_OVERRIDE?
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39 return SkISize::Make(1016, 616); | |
40 } | |
41 | |
42 virtual uint32_t onGetFlags() const SK_OVERRIDE { | |
43 return kSkipTiled_Flag; | |
44 } | |
45 | |
46 static SkBitmap make_bm(int width, int height) { | |
47 SkBitmap bm; | |
48 bm.allocN32Pixels(width, height); | |
49 bm.eraseColor(SK_ColorTRANSPARENT); | |
50 SkCanvas canvas(bm); | |
51 SkPaint paint; | |
52 paint.setAntiAlias(true); | |
53 canvas.drawCircle(width/2.f, height/2.f, width/4.f, paint); | |
54 return bm; | |
55 } | |
56 | |
57 virtual void onOnceBeforeDraw() SK_OVERRIDE { | |
58 fBitmap = make_bm(360, 288); | |
59 } | |
60 | |
61 virtual void onDraw(SkCanvas* canvas) { | |
tfarina
2014/10/30 15:30:16
SK_OVERRIDE?
| |
62 SkPaint paint; | |
63 | |
64 paint.setAntiAlias(true); | |
65 paint.setFilterLevel(SkPaint::kHigh_FilterLevel); | |
66 | |
67 SkMatrix mat; | |
68 mat.setScale(121.f/360.f, 93.f/288.f); | |
69 mat.postTranslate(-72, -72); | |
70 | |
71 SkShader *shader = SkShader::CreateBitmapShader(fBitmap, SkShader::kRepe at_TileMode, SkShader::kRepeat_TileMode, &mat); | |
72 paint.setShader(shader); | |
73 | |
74 SkSafeUnref(shader); | |
75 canvas->drawRectCoords(8,8,1008, 608, paint); | |
76 } | |
77 | |
78 private: | |
79 SkBitmap fBitmap; | |
80 | |
81 typedef GM INHERITED; | |
82 }; | |
83 | |
84 ////////////////////////////////////////////////////////////////////////////// | |
85 | |
86 DEF_GM(return SkNEW(TiledScaledBitmapGM);) | |
87 | |
88 } | |
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