senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 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" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 10 | #include "include/core/SkCanvas.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 11 | #include "include/core/SkColor.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 12 | #include "include/core/SkColorFilter.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 13 | #include "include/core/SkImage.h" |
| 14 | #include "include/core/SkImageFilter.h" |
| 15 | #include "include/core/SkPaint.h" |
| 16 | #include "include/core/SkPoint.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 17 | #include "include/core/SkPoint3.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 18 | #include "include/core/SkRect.h" |
| 19 | #include "include/core/SkRefCnt.h" |
| 20 | #include "include/core/SkScalar.h" |
| 21 | #include "include/core/SkShader.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 22 | #include "include/core/SkSurface.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 23 | #include "include/core/SkTileMode.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 24 | #include "include/effects/SkBlurImageFilter.h" |
| 25 | #include "include/effects/SkColorFilterImageFilter.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 26 | #include "include/effects/SkDisplacementMapEffect.h" |
| 27 | #include "include/effects/SkDropShadowImageFilter.h" |
| 28 | #include "include/effects/SkGradientShader.h" |
| 29 | #include "include/effects/SkImageSource.h" |
| 30 | #include "include/effects/SkLightingImageFilter.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 31 | #include "include/effects/SkMorphologyImageFilter.h" |
| 32 | #include "include/effects/SkOffsetImageFilter.h" |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 33 | |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 34 | #include <utility> |
| 35 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 36 | namespace { |
| 37 | |
| 38 | void make_checkerboard(SkBitmap* bitmap); |
| 39 | sk_sp<SkImage> make_gradient_circle(int width, int height); |
| 40 | void draw(SkCanvas* canvas, const SkBitmap& bitmap, const SkRect& rect, |
| 41 | sk_sp<SkImageFilter> filter); |
| 42 | |
| 43 | }; |
| 44 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 45 | /////////////////////////////////////////////////////////////////////////////// |
| 46 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 47 | DEF_SIMPLE_GM(imagefilterscropexpand, canvas, 730, 650) { |
| 48 | SkImageFilter::CropRect cropRect( |
| 49 | SkRect::Make(SkIRect::MakeXYWH(10, 10, 44, 44)), |
| 50 | SkImageFilter::CropRect::kHasAll_CropEdge); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 51 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 52 | sk_sp<SkImage> gradientCircle(make_gradient_circle(64, 64)); |
| 53 | SkBitmap checkerboard; |
| 54 | make_checkerboard(&checkerboard); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 55 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 56 | sk_sp<SkImageFilter> gradientCircleSource(SkImageSource::Make(std::move(gradientCircle))); |
| 57 | sk_sp<SkImageFilter> noopCropped(SkOffsetImageFilter::Make(0, 0, nullptr, &cropRect)); |
| 58 | // This color matrix saturates the green component but only partly increases the opacity. |
| 59 | // For the opaque checkerboard, the opacity boost doesn't matter but it does impact the |
| 60 | // area outside the checkerboard. |
Mike Reed | e869a1e | 2019-04-30 12:18:54 -0400 | [diff] [blame] | 61 | float matrix[20] = { 1, 0, 0, 0, 0, |
| 62 | 0, 1, 0, 0, 1, |
| 63 | 0, 0, 1, 0, 0, |
| 64 | 0, 0, 0, 1, 32.0f/255 }; |
| 65 | sk_sp<SkColorFilter> cfAlphaTrans(SkColorFilters::Matrix(matrix)); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 66 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 67 | SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64)); |
| 68 | SkScalar MARGIN = SkIntToScalar(12); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 69 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 70 | SkPoint3 pointLocation = SkPoint3::Make(0, 0, SkIntToScalar(10)); |
| 71 | SkScalar kd = SkIntToScalar(2); |
| 72 | SkScalar surfaceScale = SkIntToScalar(1); |
| 73 | SkIRect bounds; |
| 74 | r.roundOut(&bounds); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 75 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 76 | SkPaint paint; |
| 77 | canvas->translate(MARGIN, MARGIN); |
| 78 | for (int outset = -15; outset <= 20; outset += 5) { |
| 79 | canvas->save(); |
| 80 | SkRect rect = cropRect.rect(); |
| 81 | rect.outset(SkIntToScalar(outset), |
| 82 | SkIntToScalar(outset)); |
| 83 | SkImageFilter::CropRect bigRect(rect, SkImageFilter::CropRect::kHasAll_CropEdge); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 84 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 85 | draw(canvas, checkerboard, rect, SkColorFilterImageFilter::Make(cfAlphaTrans, |
| 86 | noopCropped, |
| 87 | &bigRect)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 88 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 89 | draw(canvas, checkerboard, rect, SkBlurImageFilter::Make(0.3f, 0.3f, |
| 90 | noopCropped, |
| 91 | &bigRect)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 92 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 93 | draw(canvas, checkerboard, rect, SkBlurImageFilter::Make(8.0f, 8.0f, |
| 94 | noopCropped, |
| 95 | &bigRect)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 96 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 97 | draw(canvas, checkerboard, rect, SkDilateImageFilter::Make(2, 2, |
| 98 | noopCropped, |
| 99 | &bigRect)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 100 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 101 | draw(canvas, checkerboard, rect, SkErodeImageFilter::Make(2, 2, |
| 102 | noopCropped, |
| 103 | &bigRect)); |
senorblanco | 84f0e74 | 2016-02-16 13:26:56 -0800 | [diff] [blame] | 104 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 105 | draw(canvas, checkerboard, rect, |
| 106 | SkDropShadowImageFilter::Make( |
| 107 | SkIntToScalar(10), |
| 108 | SkIntToScalar(10), |
| 109 | SkIntToScalar(3), |
| 110 | SkIntToScalar(3), |
| 111 | SK_ColorBLUE, |
| 112 | SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, |
| 113 | noopCropped, |
| 114 | &bigRect)); |
robertphillips | 51a315e | 2016-03-31 09:05:49 -0700 | [diff] [blame] | 115 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 116 | draw(canvas, checkerboard, rect, |
| 117 | SkDisplacementMapEffect::Make(SkDisplacementMapEffect::kR_ChannelSelectorType, |
| 118 | SkDisplacementMapEffect::kR_ChannelSelectorType, |
| 119 | SkIntToScalar(12), |
| 120 | gradientCircleSource, |
robertphillips | 51a315e | 2016-03-31 09:05:49 -0700 | [diff] [blame] | 121 | noopCropped, |
| 122 | &bigRect)); |
| 123 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 124 | draw(canvas, checkerboard, rect, |
| 125 | SkOffsetImageFilter::Make(SkIntToScalar(-8), SkIntToScalar(16), |
| 126 | noopCropped, |
| 127 | &bigRect)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 128 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 129 | draw(canvas, checkerboard, rect, |
| 130 | SkLightingImageFilter::MakePointLitDiffuse(pointLocation, |
| 131 | SK_ColorWHITE, |
| 132 | surfaceScale, |
| 133 | kd, |
| 134 | noopCropped, |
| 135 | &bigRect)); |
| 136 | |
| 137 | canvas->restore(); |
| 138 | canvas->translate(0, SkIntToScalar(80)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 139 | } |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 140 | } |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 141 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 142 | namespace { |
| 143 | void make_checkerboard(SkBitmap* bitmap) { |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 144 | bitmap->allocN32Pixels(64, 64); |
| 145 | SkCanvas canvas(*bitmap); |
| 146 | canvas.clear(0xFFFF0000); |
| 147 | SkPaint darkPaint; |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 148 | darkPaint.setColor(0xFF404040); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 149 | SkPaint lightPaint; |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 150 | lightPaint.setColor(0xFFA0A0A0); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 151 | for (int y = 8; y < 48; y += 16) { |
| 152 | for (int x = 8; x < 48; x += 16) { |
| 153 | canvas.save(); |
| 154 | canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); |
| 155 | canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); |
| 156 | canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); |
| 157 | canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); |
| 158 | canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); |
| 159 | canvas.restore(); |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 164 | sk_sp<SkImage> make_gradient_circle(int width, int height) { |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 165 | SkScalar x = SkIntToScalar(width / 2); |
| 166 | SkScalar y = SkIntToScalar(height / 2); |
| 167 | SkScalar radius = SkMinScalar(x, y) * 0.8f; |
reed | e8f3062 | 2016-03-23 18:59:25 -0700 | [diff] [blame] | 168 | auto surface(SkSurface::MakeRasterN32Premul(width, height)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 169 | SkCanvas* canvas = surface->getCanvas(); |
| 170 | canvas->clear(0x00000000); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 171 | SkColor colors[2]; |
| 172 | colors[0] = SK_ColorWHITE; |
| 173 | colors[1] = SK_ColorBLACK; |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 174 | SkPaint paint; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 175 | paint.setShader(SkGradientShader::MakeRadial(SkPoint::Make(x, y), radius, colors, nullptr, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 176 | 2, SkTileMode::kClamp)); |
fmalita | 5598b63 | 2015-09-15 11:26:13 -0700 | [diff] [blame] | 177 | canvas->drawCircle(x, y, radius, paint); |
| 178 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 179 | return surface->makeImageSnapshot(); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 180 | } |
| 181 | |
Stephen White | 930f69e | 2017-01-12 17:15:50 -0500 | [diff] [blame] | 182 | void draw(SkCanvas* canvas, const SkBitmap& bitmap, const SkRect& rect, |
robertphillips | 51a315e | 2016-03-31 09:05:49 -0700 | [diff] [blame] | 183 | sk_sp<SkImageFilter> filter) { |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 184 | SkPaint paint; |
robertphillips | 51a315e | 2016-03-31 09:05:49 -0700 | [diff] [blame] | 185 | paint.setImageFilter(std::move(filter)); |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 186 | canvas->saveLayer(&rect, &paint); |
| 187 | canvas->drawBitmap(bitmap, 0, 0); |
| 188 | canvas->restore(); |
skia.committer@gmail.com | f0f9f5f | 2014-03-15 03:02:32 +0000 | [diff] [blame] | 189 | |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 190 | SkPaint strokePaint; |
| 191 | strokePaint.setColor(0xFFFF0000); |
| 192 | strokePaint.setStyle(SkPaint::kStroke_Style); |
| 193 | canvas->drawRect(rect, strokePaint); |
| 194 | |
| 195 | canvas->translate(SkIntToScalar(80), 0); |
| 196 | } |
senorblanco@chromium.org | 1182529 | 2014-03-14 17:44:41 +0000 | [diff] [blame] | 197 | }; |