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 | |
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" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 12 | #include "include/core/SkColor.h" |
| 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/SkPoint.h" |
| 17 | #include "include/core/SkRect.h" |
| 18 | #include "include/core/SkRefCnt.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 19 | #include "include/core/SkScalar.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 20 | #include "include/core/SkShader.h" |
| 21 | #include "include/core/SkSize.h" |
| 22 | #include "include/core/SkString.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 23 | #include "include/core/SkSurface.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 24 | #include "include/core/SkTileMode.h" |
| 25 | #include "include/core/SkTypes.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 26 | #include "include/effects/SkGradientShader.h" |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 27 | #include "include/effects/SkImageFilters.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 28 | #include "tools/ToolUtils.h" |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 29 | |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 30 | #include <utility> |
| 31 | |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 32 | namespace skiagm { |
| 33 | |
| 34 | // This GM draws image filters with a CTM containing shearing / rotation. |
| 35 | // It checks that the scale portion of the CTM is correctly extracted |
| 36 | // and applied to the image inputs separately from the non-scale portion. |
| 37 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 38 | static sk_sp<SkImage> make_gradient_circle(int width, int height) { |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 39 | SkScalar x = SkIntToScalar(width / 2); |
| 40 | SkScalar y = SkIntToScalar(height / 2); |
Brian Osman | 116b33e | 2020-02-05 13:34:09 -0500 | [diff] [blame] | 41 | SkScalar radius = std::min(x, y) * 0.8f; |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 42 | |
reed | e8f3062 | 2016-03-23 18:59:25 -0700 | [diff] [blame] | 43 | auto surface(SkSurface::MakeRasterN32Premul(width, height)); |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 44 | SkCanvas* canvas = surface->getCanvas(); |
| 45 | |
| 46 | canvas->clear(0x00000000); |
| 47 | SkColor colors[2]; |
| 48 | colors[0] = SK_ColorWHITE; |
| 49 | colors[1] = SK_ColorBLACK; |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 50 | SkPaint paint; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 51 | paint.setShader(SkGradientShader::MakeRadial(SkPoint::Make(x, y), radius, colors, nullptr, 2, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 52 | SkTileMode::kClamp)); |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 53 | canvas->drawCircle(x, y, radius, paint); |
| 54 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 55 | return surface->makeImageSnapshot(); |
fmalita | 2f5891e | 2015-09-25 09:15:55 -0700 | [diff] [blame] | 56 | } |
| 57 | |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 58 | class ImageFiltersTransformedGM : public GM { |
| 59 | public: |
| 60 | ImageFiltersTransformedGM() { |
| 61 | this->setBGColor(SK_ColorBLACK); |
| 62 | } |
| 63 | |
| 64 | protected: |
| 65 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 66 | SkString onShortName() override { return SkString("imagefilterstransformed"); } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 67 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 68 | SkISize onISize() override { return SkISize::Make(420, 240); } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 69 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 70 | void onOnceBeforeDraw() override { |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 71 | fCheckerboard = SkImage::MakeFromBitmap( |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 72 | ToolUtils::create_checkerboard_bitmap(64, 64, 0xFFA0A0A0, 0xFF404040, 8)); |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 73 | fGradientCircle = make_gradient_circle(64, 64); |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 74 | } |
| 75 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 76 | void onDraw(SkCanvas* canvas) override { |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 77 | sk_sp<SkImageFilter> gradient(SkImageFilters::Image(fGradientCircle)); |
| 78 | sk_sp<SkImageFilter> checkerboard(SkImageFilters::Image(fCheckerboard)); |
robertphillips | c416912 | 2016-04-06 08:40:59 -0700 | [diff] [blame] | 79 | sk_sp<SkImageFilter> filters[] = { |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 80 | SkImageFilters::Blur(12, 0, nullptr), |
| 81 | SkImageFilters::DropShadow(0, 15, 8, 0, SK_ColorGREEN, nullptr), |
| 82 | SkImageFilters::DisplacementMap(SkColorChannel::kR, SkColorChannel::kR, 12, |
| 83 | std::move(gradient), checkerboard), |
| 84 | SkImageFilters::Dilate(2, 2, checkerboard), |
| 85 | SkImageFilters::Erode(2, 2, checkerboard), |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 86 | }; |
| 87 | |
| 88 | const SkScalar margin = SkIntToScalar(20); |
| 89 | const SkScalar size = SkIntToScalar(60); |
| 90 | |
| 91 | for (size_t j = 0; j < 3; j++) { |
| 92 | canvas->save(); |
| 93 | canvas->translate(margin, 0); |
| 94 | for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { |
| 95 | SkPaint paint; |
| 96 | paint.setColor(SK_ColorWHITE); |
| 97 | paint.setImageFilter(filters[i]); |
| 98 | paint.setAntiAlias(true); |
| 99 | canvas->save(); |
| 100 | canvas->translate(size * SK_ScalarHalf, size * SK_ScalarHalf); |
| 101 | canvas->scale(SkDoubleToScalar(0.8), SkDoubleToScalar(0.8)); |
| 102 | if (j == 1) { |
| 103 | canvas->rotate(SkIntToScalar(45)); |
| 104 | } else if (j == 2) { |
| 105 | canvas->skew(SkDoubleToScalar(0.5), SkDoubleToScalar(0.2)); |
| 106 | } |
| 107 | canvas->translate(-size * SK_ScalarHalf, -size * SK_ScalarHalf); |
| 108 | canvas->drawOval(SkRect::MakeXYWH(0, size * SkDoubleToScalar(0.1), |
| 109 | size, size * SkDoubleToScalar(0.6)), paint); |
| 110 | canvas->restore(); |
| 111 | canvas->translate(size + margin, 0); |
| 112 | } |
| 113 | canvas->restore(); |
| 114 | canvas->translate(0, size + margin); |
| 115 | } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | private: |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 119 | sk_sp<SkImage> fCheckerboard; |
| 120 | sk_sp<SkImage> fGradientCircle; |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 121 | typedef GM INHERITED; |
| 122 | }; |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 123 | DEF_GM( return new ImageFiltersTransformedGM; ) |
| 124 | } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 125 | |
| 126 | ////////////////////////////////////////////////////////////////////////////// |
| 127 | |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 128 | DEF_SIMPLE_GM(rotate_imagefilter, canvas, 500, 500) { |
| 129 | SkPaint paint; |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 130 | |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 131 | const SkRect r = SkRect::MakeXYWH(50, 50, 100, 100); |
| 132 | |
| 133 | sk_sp<SkImageFilter> filters[] = { |
| 134 | nullptr, |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 135 | SkImageFilters::Blur(6, 0, nullptr), |
| 136 | SkImageFilters::Xfermode(SkBlendMode::kSrcOver, nullptr), |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 137 | }; |
| 138 | |
| 139 | for (auto& filter : filters) { |
| 140 | paint.setAntiAlias(false); |
| 141 | paint.setImageFilter(filter); |
| 142 | |
| 143 | canvas->save(); |
| 144 | |
| 145 | canvas->drawRect(r, paint); |
| 146 | |
| 147 | canvas->translate(150, 0); |
| 148 | canvas->save(); |
bungeman | 7438bfc | 2016-07-12 15:01:19 -0700 | [diff] [blame] | 149 | canvas->rotate(30, 100, 100); |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 150 | canvas->drawRect(r, paint); |
| 151 | canvas->restore(); |
| 152 | |
| 153 | paint.setAntiAlias(true); |
| 154 | canvas->translate(150, 0); |
| 155 | canvas->save(); |
bungeman | 7438bfc | 2016-07-12 15:01:19 -0700 | [diff] [blame] | 156 | canvas->rotate(30, 100, 100); |
reed | 51dece3 | 2016-04-19 14:02:52 -0700 | [diff] [blame] | 157 | canvas->drawRect(r, paint); |
| 158 | canvas->restore(); |
| 159 | |
| 160 | canvas->restore(); |
| 161 | canvas->translate(0, 150); |
| 162 | } |
senorblanco | d4bb991 | 2015-03-20 08:54:32 -0700 | [diff] [blame] | 163 | } |