senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 8 | #include "SkBlurImageFilter.h" |
| 9 | #include "SkColor.h" |
| 10 | #include "SkDisplacementMapEffect.h" |
| 11 | #include "SkDropShadowImageFilter.h" |
| 12 | #include "SkGradientShader.h" |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 13 | #include "SkImage.h" |
| 14 | #include "SkImageSource.h" |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 15 | #include "SkMorphologyImageFilter.h" |
| 16 | #include "SkScalar.h" |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 17 | #include "SkSurface.h" |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 18 | #include "gm.h" |
Mike Klein | 33d2055 | 2017-03-22 13:47:51 -0400 | [diff] [blame] | 19 | #include "sk_tool_utils.h" |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 20 | |
| 21 | namespace skiagm { |
| 22 | |
| 23 | // This GM draws image filters with a CTM containing shearing / rotation. |
| 24 | // It checks that the scale portion of the CTM is correctly extracted |
| 25 | // and applied to the image inputs separately from the non-scale portion. |
| 26 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 27 | static sk_sp<SkImage> make_gradient_circle(int width, int height) { |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 28 | SkScalar x = SkIntToScalar(width / 2); |
| 29 | SkScalar y = SkIntToScalar(height / 2); |
| 30 | SkScalar radius = SkMinScalar(x, y) * 0.8f; |
| 31 | |
reed | e8f3062 | 2016-03-23 18:59:25 -0700 | [diff] [blame] | 32 | auto surface(SkSurface::MakeRasterN32Premul(width, height)); |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 33 | SkCanvas* canvas = surface->getCanvas(); |
| 34 | |
| 35 | canvas->clear(0x00000000); |
| 36 | SkColor colors[2]; |
| 37 | colors[0] = SK_ColorWHITE; |
| 38 | colors[1] = SK_ColorBLACK; |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 39 | SkPaint paint; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 40 | paint.setShader(SkGradientShader::MakeRadial(SkPoint::Make(x, y), radius, colors, nullptr, 2, |
| 41 | SkShader::kClamp_TileMode)); |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 42 | canvas->drawCircle(x, y, radius, paint); |
| 43 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 44 | return surface->makeImageSnapshot(); |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 45 | } |
| 46 | |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 47 | class ImageFiltersTransformedGM : public GM { |
| 48 | public: |
| 49 | ImageFiltersTransformedGM() { |
| 50 | this->setBGColor(SK_ColorBLACK); |
| 51 | } |
| 52 | |
| 53 | protected: |
| 54 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 55 | SkString onShortName() override { return SkString("imagefilterstransformed"); } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 56 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 57 | SkISize onISize() override { return SkISize::Make(420, 240); } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 58 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 59 | void onOnceBeforeDraw() override { |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 60 | fCheckerboard = SkImage::MakeFromBitmap( |
| 61 | sk_tool_utils::create_checkerboard_bitmap(64, 64, 0xFFA0A0A0, 0xFF404040, 8)); |
| 62 | fGradientCircle = make_gradient_circle(64, 64); |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 63 | } |
| 64 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 65 | void onDraw(SkCanvas* canvas) override { |
robertphillips | 549c899 | 2016-04-01 09:28:51 -0700 | [diff] [blame] | 66 | sk_sp<SkImageFilter> gradient(SkImageSource::Make(fGradientCircle)); |
| 67 | sk_sp<SkImageFilter> checkerboard(SkImageSource::Make(fCheckerboard)); |
robertphillips | c416912 | 2016-04-06 08:40:59 -0700 | [diff] [blame] | 68 | sk_sp<SkImageFilter> filters[] = { |
| 69 | SkBlurImageFilter::Make(12, 0, nullptr), |
| 70 | SkDropShadowImageFilter::Make(0, 15, 8, 0, SK_ColorGREEN, |
| 71 | SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr), |
robertphillips | bfe11fc | 2016-04-15 07:17:36 -0700 | [diff] [blame] | 72 | SkDisplacementMapEffect::Make(SkDisplacementMapEffect::kR_ChannelSelectorType, |
| 73 | SkDisplacementMapEffect::kR_ChannelSelectorType, |
| 74 | 12, |
| 75 | std::move(gradient), |
| 76 | checkerboard), |
robertphillips | c416912 | 2016-04-06 08:40:59 -0700 | [diff] [blame] | 77 | SkDilateImageFilter::Make(2, 2, checkerboard), |
| 78 | SkErodeImageFilter::Make(2, 2, checkerboard), |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 79 | }; |
| 80 | |
| 81 | const SkScalar margin = SkIntToScalar(20); |
| 82 | const SkScalar size = SkIntToScalar(60); |
| 83 | |
| 84 | for (size_t j = 0; j < 3; j++) { |
| 85 | canvas->save(); |
| 86 | canvas->translate(margin, 0); |
| 87 | for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { |
| 88 | SkPaint paint; |
| 89 | paint.setColor(SK_ColorWHITE); |
| 90 | paint.setImageFilter(filters[i]); |
| 91 | paint.setAntiAlias(true); |
| 92 | canvas->save(); |
| 93 | canvas->translate(size * SK_ScalarHalf, size * SK_ScalarHalf); |
| 94 | canvas->scale(SkDoubleToScalar(0.8), SkDoubleToScalar(0.8)); |
| 95 | if (j == 1) { |
| 96 | canvas->rotate(SkIntToScalar(45)); |
| 97 | } else if (j == 2) { |
| 98 | canvas->skew(SkDoubleToScalar(0.5), SkDoubleToScalar(0.2)); |
| 99 | } |
| 100 | canvas->translate(-size * SK_ScalarHalf, -size * SK_ScalarHalf); |
| 101 | canvas->drawOval(SkRect::MakeXYWH(0, size * SkDoubleToScalar(0.1), |
| 102 | size, size * SkDoubleToScalar(0.6)), paint); |
| 103 | canvas->restore(); |
| 104 | canvas->translate(size + margin, 0); |
| 105 | } |
| 106 | canvas->restore(); |
| 107 | canvas->translate(0, size + margin); |
| 108 | } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | private: |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 112 | sk_sp<SkImage> fCheckerboard; |
| 113 | sk_sp<SkImage> fGradientCircle; |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 114 | typedef GM INHERITED; |
| 115 | }; |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 116 | DEF_GM( return new ImageFiltersTransformedGM; ) |
| 117 | } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 118 | |
| 119 | ////////////////////////////////////////////////////////////////////////////// |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 120 | #include "SkXfermodeImageFilter.h" |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 121 | |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 122 | DEF_SIMPLE_GM(rotate_imagefilter, canvas, 500, 500) { |
| 123 | SkPaint paint; |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 124 | |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 125 | const SkRect r = SkRect::MakeXYWH(50, 50, 100, 100); |
| 126 | |
| 127 | sk_sp<SkImageFilter> filters[] = { |
| 128 | nullptr, |
| 129 | SkBlurImageFilter::Make(6, 0, nullptr), |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 130 | SkXfermodeImageFilter::Make(SkBlendMode::kSrcOver, nullptr), |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 131 | }; |
| 132 | |
| 133 | for (auto& filter : filters) { |
| 134 | paint.setAntiAlias(false); |
| 135 | paint.setImageFilter(filter); |
| 136 | |
| 137 | canvas->save(); |
| 138 | |
| 139 | canvas->drawRect(r, paint); |
| 140 | |
| 141 | canvas->translate(150, 0); |
| 142 | canvas->save(); |
bungeman | 7438bfc | 2016-07-12 15:01:19 -0700 | [diff] [blame] | 143 | canvas->rotate(30, 100, 100); |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 144 | canvas->drawRect(r, paint); |
| 145 | canvas->restore(); |
| 146 | |
| 147 | paint.setAntiAlias(true); |
| 148 | canvas->translate(150, 0); |
| 149 | canvas->save(); |
bungeman | 7438bfc | 2016-07-12 15:01:19 -0700 | [diff] [blame] | 150 | canvas->rotate(30, 100, 100); |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 151 | canvas->drawRect(r, paint); |
| 152 | canvas->restore(); |
| 153 | |
| 154 | canvas->restore(); |
| 155 | canvas->translate(0, 150); |
| 156 | } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 157 | } |