senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 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 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 9 | #include "include/core/SkBitmap.h" |
| 10 | #include "include/core/SkBlendMode.h" |
| 11 | #include "include/core/SkCanvas.h" |
| 12 | #include "include/core/SkColor.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 13 | #include "include/core/SkImage.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 14 | #include "include/core/SkImageFilter.h" |
| 15 | #include "include/core/SkPaint.h" |
| 16 | #include "include/core/SkRect.h" |
| 17 | #include "include/core/SkRefCnt.h" |
| 18 | #include "include/core/SkScalar.h" |
| 19 | #include "include/core/SkSize.h" |
| 20 | #include "include/core/SkString.h" |
| 21 | #include "include/core/SkTypes.h" |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 22 | #include "include/effects/SkImageFilters.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 23 | #include "tools/ToolUtils.h" |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 24 | |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 25 | #include <utility> |
| 26 | |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 27 | #define WIDTH 600 |
senorblanco | 06d54ad | 2016-01-13 13:48:54 -0800 | [diff] [blame] | 28 | #define HEIGHT 700 |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 29 | #define MARGIN 12 |
| 30 | |
| 31 | namespace skiagm { |
| 32 | |
| 33 | class XfermodeImageFilterGM : public GM { |
| 34 | public: |
senorblanco@chromium.org | e93e1db | 2013-12-09 18:31:42 +0000 | [diff] [blame] | 35 | XfermodeImageFilterGM(){ |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 36 | this->setBGColor(0xFF000000); |
| 37 | } |
| 38 | |
| 39 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 40 | SkString onShortName() override { |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 41 | return SkString("xfermodeimagefilter"); |
| 42 | } |
| 43 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 44 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 45 | return SkISize::Make(WIDTH, HEIGHT); |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 46 | } |
| 47 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 48 | void onOnceBeforeDraw() override { |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 49 | fBitmap = ToolUtils::create_string_bitmap(80, 80, 0xD000D000, 15, 65, 96, "e"); |
halcanary | 878fa02 | 2015-01-26 11:24:32 -0800 | [diff] [blame] | 50 | |
Mike Reed | ac9f0c9 | 2020-12-23 10:11:33 -0500 | [diff] [blame] | 51 | fCheckerboard = ToolUtils::create_checkerboard_image(80, 80, 0xFFA0A0A0, 0xFF404040, 8); |
senorblanco@chromium.org | e93e1db | 2013-12-09 18:31:42 +0000 | [diff] [blame] | 52 | } |
| 53 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 54 | void onDraw(SkCanvas* canvas) override { |
senorblanco | 16b254a | 2015-04-09 11:13:24 -0700 | [diff] [blame] | 55 | canvas->clear(SK_ColorBLACK); |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 56 | SkPaint paint; |
| 57 | |
Brian Osman | d1e67e7 | 2017-03-15 12:19:37 -0400 | [diff] [blame] | 58 | const SkBlendMode gModes[] = { |
| 59 | SkBlendMode::kClear, |
| 60 | SkBlendMode::kSrc, |
| 61 | SkBlendMode::kDst, |
| 62 | SkBlendMode::kSrcOver, |
| 63 | SkBlendMode::kDstOver, |
| 64 | SkBlendMode::kSrcIn, |
| 65 | SkBlendMode::kDstIn, |
| 66 | SkBlendMode::kSrcOut, |
| 67 | SkBlendMode::kDstOut, |
| 68 | SkBlendMode::kSrcATop, |
| 69 | SkBlendMode::kDstATop, |
| 70 | SkBlendMode::kXor, |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 71 | |
Brian Osman | d1e67e7 | 2017-03-15 12:19:37 -0400 | [diff] [blame] | 72 | SkBlendMode::kPlus, |
| 73 | SkBlendMode::kModulate, |
| 74 | SkBlendMode::kScreen, |
| 75 | SkBlendMode::kOverlay, |
| 76 | SkBlendMode::kDarken, |
| 77 | SkBlendMode::kLighten, |
| 78 | SkBlendMode::kColorDodge, |
| 79 | SkBlendMode::kColorBurn, |
| 80 | SkBlendMode::kHardLight, |
| 81 | SkBlendMode::kSoftLight, |
| 82 | SkBlendMode::kDifference, |
| 83 | SkBlendMode::kExclusion, |
| 84 | SkBlendMode::kMultiply, |
| 85 | SkBlendMode::kHue, |
| 86 | SkBlendMode::kSaturation, |
| 87 | SkBlendMode::kColor, |
| 88 | SkBlendMode::kLuminosity, |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 89 | }; |
| 90 | |
| 91 | int x = 0, y = 0; |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 92 | sk_sp<SkImageFilter> background(SkImageFilters::Image(fCheckerboard)); |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 93 | for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) { |
Michael Ludwig | 01b93ea | 2020-10-09 10:45:07 -0400 | [diff] [blame] | 94 | paint.setImageFilter(SkImageFilters::Blend(gModes[i], background)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 95 | DrawClippedBitmap(canvas, fBitmap, paint, x, y); |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 96 | x += fBitmap.width() + MARGIN; |
| 97 | if (x + fBitmap.width() > WIDTH) { |
| 98 | x = 0; |
| 99 | y += fBitmap.height() + MARGIN; |
| 100 | } |
| 101 | } |
| 102 | // Test arithmetic mode as image filter |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 103 | paint.setImageFilter(SkImageFilters::Arithmetic(0, 1, 1, 0, true, background, nullptr)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 104 | DrawClippedBitmap(canvas, fBitmap, paint, x, y); |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 105 | x += fBitmap.width() + MARGIN; |
| 106 | if (x + fBitmap.width() > WIDTH) { |
| 107 | x = 0; |
| 108 | y += fBitmap.height() + MARGIN; |
| 109 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 110 | // Test nullptr mode |
Michael Ludwig | 01b93ea | 2020-10-09 10:45:07 -0400 | [diff] [blame] | 111 | paint.setImageFilter(SkImageFilters::Blend(SkBlendMode::kSrcOver, background)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 112 | DrawClippedBitmap(canvas, fBitmap, paint, x, y); |
commit-bot@chromium.org | 7b32070 | 2013-07-10 21:22:18 +0000 | [diff] [blame] | 113 | x += fBitmap.width() + MARGIN; |
| 114 | if (x + fBitmap.width() > WIDTH) { |
| 115 | x = 0; |
| 116 | y += fBitmap.height() + MARGIN; |
| 117 | } |
senorblanco@chromium.org | e93e1db | 2013-12-09 18:31:42 +0000 | [diff] [blame] | 118 | SkRect clipRect = SkRect::MakeWH(SkIntToScalar(fBitmap.width() + 4), |
| 119 | SkIntToScalar(fBitmap.height() + 4)); |
commit-bot@chromium.org | 7b32070 | 2013-07-10 21:22:18 +0000 | [diff] [blame] | 120 | // Test offsets on SrcMode (uses fixed-function blend) |
Mike Reed | ac9f0c9 | 2020-12-23 10:11:33 -0500 | [diff] [blame] | 121 | sk_sp<SkImage> bitmapImage(fBitmap.asImage()); |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 122 | sk_sp<SkImageFilter> foreground(SkImageFilters::Image(std::move(bitmapImage))); |
| 123 | sk_sp<SkImageFilter> offsetForeground(SkImageFilters::Offset(4, -4, foreground)); |
| 124 | sk_sp<SkImageFilter> offsetBackground(SkImageFilters::Offset(4, 4, background)); |
Michael Ludwig | 01b93ea | 2020-10-09 10:45:07 -0400 | [diff] [blame] | 125 | paint.setImageFilter(SkImageFilters::Blend( |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 126 | SkBlendMode::kSrcOver, offsetBackground, offsetForeground)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 127 | DrawClippedPaint(canvas, clipRect, paint, x, y); |
commit-bot@chromium.org | 7b32070 | 2013-07-10 21:22:18 +0000 | [diff] [blame] | 128 | x += fBitmap.width() + MARGIN; |
| 129 | if (x + fBitmap.width() > WIDTH) { |
| 130 | x = 0; |
| 131 | y += fBitmap.height() + MARGIN; |
| 132 | } |
| 133 | // Test offsets on Darken (uses shader blend) |
Michael Ludwig | 01b93ea | 2020-10-09 10:45:07 -0400 | [diff] [blame] | 134 | paint.setImageFilter(SkImageFilters::Blend( |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 135 | SkBlendMode::kDarken, offsetBackground, offsetForeground)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 136 | DrawClippedPaint(canvas, clipRect, paint, x, y); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 137 | x += fBitmap.width() + MARGIN; |
| 138 | if (x + fBitmap.width() > WIDTH) { |
| 139 | x = 0; |
| 140 | y += fBitmap.height() + MARGIN; |
| 141 | } |
| 142 | // Test cropping |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 143 | constexpr size_t nbSamples = 3; |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 144 | const SkBlendMode sampledModes[nbSamples] = { |
| 145 | SkBlendMode::kOverlay, SkBlendMode::kSrcOver, SkBlendMode::kPlus |
| 146 | }; |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 147 | int offsets[nbSamples][4] = {{ 10, 10, -16, -16}, |
| 148 | { 10, 10, 10, 10}, |
| 149 | {-10, -10, -6, -6}}; |
| 150 | for (size_t i = 0; i < nbSamples; ++i) { |
senorblanco@chromium.org | e93e1db | 2013-12-09 18:31:42 +0000 | [diff] [blame] | 151 | SkIRect cropRect = SkIRect::MakeXYWH(offsets[i][0], |
| 152 | offsets[i][1], |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 153 | fBitmap.width() + offsets[i][2], |
| 154 | fBitmap.height() + offsets[i][3]); |
Michael Ludwig | 01b93ea | 2020-10-09 10:45:07 -0400 | [diff] [blame] | 155 | paint.setImageFilter(SkImageFilters::Blend(sampledModes[i], offsetBackground, |
| 156 | offsetForeground, &cropRect)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 157 | DrawClippedPaint(canvas, clipRect, paint, x, y); |
commit-bot@chromium.org | 1a4fb70 | 2013-09-26 16:09:28 +0000 | [diff] [blame] | 158 | x += fBitmap.width() + MARGIN; |
| 159 | if (x + fBitmap.width() > WIDTH) { |
| 160 | x = 0; |
| 161 | y += fBitmap.height() + MARGIN; |
| 162 | } |
| 163 | } |
senorblanco | 06d54ad | 2016-01-13 13:48:54 -0800 | [diff] [blame] | 164 | // Test small bg, large fg with Screen (uses shader blend) |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 165 | SkIRect cropRect = SkIRect::MakeXYWH(10, 10, 60, 60); |
| 166 | sk_sp<SkImageFilter> cropped(SkImageFilters::Offset(0, 0, foreground, &cropRect)); |
Michael Ludwig | 01b93ea | 2020-10-09 10:45:07 -0400 | [diff] [blame] | 167 | paint.setImageFilter(SkImageFilters::Blend(SkBlendMode::kScreen, cropped, background)); |
senorblanco | 06d54ad | 2016-01-13 13:48:54 -0800 | [diff] [blame] | 168 | DrawClippedPaint(canvas, clipRect, paint, x, y); |
| 169 | x += fBitmap.width() + MARGIN; |
| 170 | if (x + fBitmap.width() > WIDTH) { |
| 171 | x = 0; |
| 172 | y += fBitmap.height() + MARGIN; |
| 173 | } |
| 174 | // Test small fg, large bg with Screen (uses shader blend) |
Michael Ludwig | 01b93ea | 2020-10-09 10:45:07 -0400 | [diff] [blame] | 175 | paint.setImageFilter(SkImageFilters::Blend(SkBlendMode::kScreen, background, cropped)); |
senorblanco | 06d54ad | 2016-01-13 13:48:54 -0800 | [diff] [blame] | 176 | DrawClippedPaint(canvas, clipRect, paint, x, y); |
| 177 | x += fBitmap.width() + MARGIN; |
| 178 | if (x + fBitmap.width() > WIDTH) { |
| 179 | x = 0; |
| 180 | y += fBitmap.height() + MARGIN; |
| 181 | } |
senorblanco | 9db0427 | 2016-03-31 08:24:29 -0700 | [diff] [blame] | 182 | // Test small fg, large bg with SrcIn with a crop that forces it to full size. |
| 183 | // This tests that SkXfermodeImageFilter correctly applies the compositing mode to |
| 184 | // the region outside the foreground. |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 185 | SkIRect cropRectFull = SkIRect::MakeXYWH(0, 0, 80, 80); |
Michael Ludwig | 01b93ea | 2020-10-09 10:45:07 -0400 | [diff] [blame] | 186 | paint.setImageFilter(SkImageFilters::Blend(SkBlendMode::kSrcIn, background, cropped, |
| 187 | &cropRectFull)); |
senorblanco | 9db0427 | 2016-03-31 08:24:29 -0700 | [diff] [blame] | 188 | DrawClippedPaint(canvas, clipRect, paint, x, y); |
| 189 | x += fBitmap.width() + MARGIN; |
| 190 | if (x + fBitmap.width() > WIDTH) { |
| 191 | x = 0; |
| 192 | y += fBitmap.height() + MARGIN; |
| 193 | } |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 194 | } |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 195 | |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 196 | private: |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 197 | static void DrawClippedBitmap(SkCanvas* canvas, const SkBitmap& bitmap, const SkPaint& paint, |
Robert Phillips | 1119dc3 | 2017-04-11 12:54:57 -0400 | [diff] [blame] | 198 | int x, int y) { |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 199 | canvas->save(); |
| 200 | canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
Mike Reed | 568f0ae | 2021-01-24 08:57:23 -0500 | [diff] [blame] | 201 | canvas->clipIRect(bitmap.bounds()); |
Mike Reed | 607a382 | 2021-01-24 19:49:21 -0500 | [diff] [blame] | 202 | canvas->drawImage(bitmap.asImage(), 0, 0, SkSamplingOptions(), &paint); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 203 | canvas->restore(); |
| 204 | } |
| 205 | |
| 206 | static void DrawClippedPaint(SkCanvas* canvas, const SkRect& rect, const SkPaint& paint, |
Robert Phillips | 1119dc3 | 2017-04-11 12:54:57 -0400 | [diff] [blame] | 207 | int x, int y) { |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 208 | canvas->save(); |
| 209 | canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
| 210 | canvas->clipRect(rect); |
| 211 | canvas->drawPaint(paint); |
| 212 | canvas->restore(); |
| 213 | } |
| 214 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 215 | SkBitmap fBitmap; |
| 216 | sk_sp<SkImage> fCheckerboard; |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 217 | |
John Stiles | 7571f9e | 2020-09-02 22:42:33 -0400 | [diff] [blame] | 218 | using INHERITED = GM; |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 219 | }; |
| 220 | |
| 221 | ////////////////////////////////////////////////////////////////////////////// |
| 222 | |
senorblanco@chromium.org | e93e1db | 2013-12-09 18:31:42 +0000 | [diff] [blame] | 223 | DEF_GM( return new XfermodeImageFilterGM; ); |
senorblanco@chromium.org | 86fc266 | 2013-05-31 17:49:12 +0000 | [diff] [blame] | 224 | |
John Stiles | a6841be | 2020-08-06 14:11:56 -0400 | [diff] [blame] | 225 | } // namespace skiagm |