gm/blend.cpp - Issue 21404002: Remove SkBlendImageFilter, and all tests. Its functionality has been subsumed by SkXfermodeImageFil…

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Issue 21404002: Remove SkBlendImageFilter, and all tests. Its functionality has been subsumed by SkXfermodeImageFil… (Closed) Base URL: https://skia.googlecode.com/svn/trunk

Patch Set: Created 7 years, 4 months ago

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1 /*

2 * Copyright 2012 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.h"

9 #include "SkBlendImageFilter.h"

10 #include "SkBitmapSource.h"

11

12 namespace skiagm {

13

14 class ImageBlendGM : public GM {

15 public:

16 ImageBlendGM() : fInitialized(false) {

17 this->setBGColor(0xFF000000);

18 }

19

20 protected:

21 virtual SkString onShortName() {

22 return SkString("blend");

23 }

24

25 void make_bitmap() {

26 fBitmap.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);

27 fBitmap.allocPixels();

28 SkDevice device(fBitmap);

29 SkCanvas canvas(&device);

30 canvas.clear(0x00000000);

31 SkPaint paint;

32 paint.setAntiAlias(true);

33 paint.setColor(0xD000D000);

34 paint.setTextSize(SkIntToScalar(96));

35 const char* str = "e";

36 canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(65), paint);

37 }

38

39 void make_checkerboard() {

40 fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);

41 fCheckerboard.allocPixels();

42 SkDevice device(fCheckerboard);

43 SkCanvas canvas(&device);

44 canvas.clear(0x00000000);

45 SkPaint darkPaint;

46 darkPaint.setColor(0xFF404040);

47 SkPaint lightPaint;

48 lightPaint.setColor(0xFFA0A0A0);

49 for (int y = 0; y < 80; y += 16) {

50 for (int x = 0; x < 80; x += 16) {

51 canvas.save();

52 canvas.translate(SkIntToScalar(x), SkIntToScalar(y));

53 canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);

54 canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);

55 canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);

56 canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);

57 canvas.restore();

58 }

59 }

60 }

61

62 virtual SkISize onISize() {

63 return make_isize(500, 100);

64 }

65

66 void drawClippedBitmap(SkCanvas* canvas, const SkPaint& paint, int x) {

67 canvas->save();

68 canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), 0,

69 SkIntToScalar(fBitmap.width()), SkIntToScalar(fBitmap.height())));

70 canvas->drawBitmap(fBitmap, SkIntToScalar(x), 0, &paint);

71 canvas->restore();

72 }

73

74 virtual void onDraw(SkCanvas* canvas) {

75 if (!fInitialized) {

76 make_bitmap();

77 make_checkerboard();

78 fInitialized = true;

79 }

80 canvas->clear(0x00000000);

81 SkPaint paint;

82 SkAutoTUnref<SkImageFilter> background(SkNEW_ARGS(SkBitmapSource, (fChec kerboard)));

83 paint.setImageFilter(SkNEW_ARGS(SkBlendImageFilter, (SkBlendImageFilter: :kNormal_Mode, background)))->unref();

84 drawClippedBitmap(canvas, paint, 0);

85 paint.setImageFilter(SkNEW_ARGS(SkBlendImageFilter, (SkBlendImageFilter: :kMultiply_Mode, background)))->unref();

86 drawClippedBitmap(canvas, paint, 100);

87 paint.setImageFilter(SkNEW_ARGS(SkBlendImageFilter, (SkBlendImageFilter: :kScreen_Mode, background)))->unref();

88 drawClippedBitmap(canvas, paint, 200);

89 paint.setImageFilter(SkNEW_ARGS(SkBlendImageFilter, (SkBlendImageFilter: :kDarken_Mode, background)))->unref();

90 drawClippedBitmap(canvas, paint, 300);

91 paint.setImageFilter(SkNEW_ARGS(SkBlendImageFilter, (SkBlendImageFilter: :kLighten_Mode, background)))->unref();

92 drawClippedBitmap(canvas, paint, 400);

93 }

94

95 private:

96 typedef GM INHERITED;

97 SkBitmap fBitmap, fCheckerboard;

98 bool fInitialized;

99 };

100

101 //////////////////////////////////////////////////////////////////////////////

102

103 static GM* MyFactory(void*) { return new ImageBlendGM; }

104 static GMRegistry reg(MyFactory);

105

106 }

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