senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 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" |
| 13 | #include "include/core/SkColorFilter.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 14 | #include "include/core/SkImage.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 15 | #include "include/core/SkPaint.h" |
| 16 | #include "include/core/SkPoint.h" |
| 17 | #include "include/core/SkRect.h" |
| 18 | #include "include/core/SkRefCnt.h" |
| 19 | #include "include/core/SkScalar.h" |
| 20 | #include "include/core/SkShader.h" |
| 21 | #include "include/core/SkSize.h" |
| 22 | #include "include/core/SkString.h" |
| 23 | #include "include/core/SkTileMode.h" |
| 24 | #include "include/core/SkTypes.h" |
| 25 | #include "include/effects/SkColorMatrix.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 26 | #include "include/effects/SkGradientShader.h" |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 27 | |
| 28 | #define WIDTH 500 |
Brian Osman | e36d030 | 2019-11-01 17:10:28 -0400 | [diff] [blame] | 29 | #define HEIGHT 160 |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 30 | |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 31 | static void set_color_matrix(SkPaint* paint, const SkColorMatrix& matrix) { |
Mike Reed | 50d79af | 2019-04-21 22:17:03 -0400 | [diff] [blame] | 32 | paint->setColorFilter(SkColorFilters::Matrix(matrix)); |
reed@google.com | 7b6c193 | 2012-06-04 19:07:41 +0000 | [diff] [blame] | 33 | } |
| 34 | |
Mike Reed | e869a1e | 2019-04-30 12:18:54 -0400 | [diff] [blame] | 35 | static void set_array(SkPaint* paint, const float array[]) { |
| 36 | paint->setColorFilter(SkColorFilters::Matrix(array)); |
reed@google.com | 7b6c193 | 2012-06-04 19:07:41 +0000 | [diff] [blame] | 37 | } |
| 38 | |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 39 | class ColorMatrixGM : public skiagm::GM { |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 40 | public: |
| 41 | ColorMatrixGM() { |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 42 | this->setBGColor(0xFF808080); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 43 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 44 | |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 45 | protected: |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 46 | SkString onShortName() override { |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 47 | return SkString("colormatrix"); |
| 48 | } |
| 49 | |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 50 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 51 | return SkISize::Make(WIDTH, HEIGHT); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 52 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 53 | |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 54 | void onOnceBeforeDraw() override { |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 55 | fSolidImg = CreateSolidBitmap(64, 64); |
| 56 | fTransparentImg = CreateTransparentBitmap(64, 64); |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 57 | } |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 58 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 59 | static sk_sp<SkImage> CreateSolidBitmap(int width, int height) { |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 60 | SkBitmap bm; |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 61 | bm.allocN32Pixels(width, height); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 62 | SkCanvas canvas(bm); |
senorblanco@chromium.org | 50bdad8 | 2012-01-03 20:51:57 +0000 | [diff] [blame] | 63 | canvas.clear(0x0); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 64 | for (int y = 0; y < height; ++y) { |
| 65 | for (int x = 0; x < width; ++x) { |
| 66 | SkPaint paint; |
| 67 | paint.setColor(SkColorSetARGB(255, x * 255 / width, y * 255 / height, 0)); |
tomhudson@google.com | 7558925 | 2012-04-10 17:42:21 +0000 | [diff] [blame] | 68 | canvas.drawRect(SkRect::MakeXYWH(SkIntToScalar(x), |
| 69 | SkIntToScalar(y), SK_Scalar1, SK_Scalar1), paint); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 70 | } |
| 71 | } |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 72 | return SkImage::MakeFromBitmap(bm); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 73 | } |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 74 | |
| 75 | // creates a bitmap with shades of transparent gray. |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 76 | static sk_sp<SkImage> CreateTransparentBitmap(int width, int height) { |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 77 | SkBitmap bm; |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 78 | bm.allocN32Pixels(width, height); |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 79 | SkCanvas canvas(bm); |
| 80 | canvas.clear(0x0); |
| 81 | |
| 82 | SkPoint pts[] = {{0, 0}, {SkIntToScalar(width), SkIntToScalar(height)}}; |
| 83 | SkColor colors[] = {0x00000000, 0xFFFFFFFF}; |
| 84 | SkPaint paint; |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 85 | paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 86 | SkTileMode::kClamp)); |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 87 | canvas.drawRect(SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height)), paint); |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 88 | return SkImage::MakeFromBitmap(bm); |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 89 | } |
| 90 | |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 91 | void onDraw(SkCanvas* canvas) override { |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 92 | SkPaint paint; |
| 93 | SkColorMatrix matrix; |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 94 | |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 95 | paint.setBlendMode(SkBlendMode::kSrc); |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 96 | const SkImage* bmps[] = { fSolidImg.get(), fTransparentImg.get() }; |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 97 | |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 98 | for (size_t i = 0; i < SK_ARRAY_COUNT(bmps); ++i) { |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 99 | matrix.setIdentity(); |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 100 | set_color_matrix(&paint, matrix); |
| 101 | canvas->drawImage(bmps[i], 0, 0, &paint); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 102 | |
Brian Osman | e36d030 | 2019-11-01 17:10:28 -0400 | [diff] [blame] | 103 | /////////////////////////////////////////////// |
| 104 | |
| 105 | matrix.setSaturation(0.0f); |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 106 | set_color_matrix(&paint, matrix); |
| 107 | canvas->drawImage(bmps[i], 80, 0, &paint); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 108 | |
Brian Osman | e36d030 | 2019-11-01 17:10:28 -0400 | [diff] [blame] | 109 | matrix.setSaturation(0.5f); |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 110 | set_color_matrix(&paint, matrix); |
| 111 | canvas->drawImage(bmps[i], 160, 0, &paint); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 112 | |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 113 | matrix.setSaturation(1.0f); |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 114 | set_color_matrix(&paint, matrix); |
Brian Osman | e36d030 | 2019-11-01 17:10:28 -0400 | [diff] [blame] | 115 | canvas->drawImage(bmps[i], 240, 0, &paint); |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 116 | |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 117 | matrix.setSaturation(2.0f); |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 118 | set_color_matrix(&paint, matrix); |
Brian Osman | e36d030 | 2019-11-01 17:10:28 -0400 | [diff] [blame] | 119 | canvas->drawImage(bmps[i], 320, 0, &paint); |
senorblanco@chromium.org | b3a39b5 | 2012-01-05 18:28:56 +0000 | [diff] [blame] | 120 | |
Brian Osman | e36d030 | 2019-11-01 17:10:28 -0400 | [diff] [blame] | 121 | /////////////////////////////////////////////// |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 122 | |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 123 | // Move red into alpha, set color to white |
Mike Reed | e869a1e | 2019-04-30 12:18:54 -0400 | [diff] [blame] | 124 | float data[20] = { |
| 125 | 0, 0, 0, 0, 1, |
| 126 | 0, 0, 0, 0, 1, |
| 127 | 0, 0, 0, 0, 1, |
| 128 | 1, 0, 0, 0, 0, |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 129 | }; |
| 130 | |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 131 | set_array(&paint, data); |
Brian Osman | e36d030 | 2019-11-01 17:10:28 -0400 | [diff] [blame] | 132 | canvas->drawImage(bmps[i], 400, 0, &paint); |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 133 | /////////////////////////////////////////////// |
Brian Osman | e36d030 | 2019-11-01 17:10:28 -0400 | [diff] [blame] | 134 | canvas->translate(0, 80); |
bsalomon@google.com | 1282009 | 2012-10-16 17:50:48 +0000 | [diff] [blame] | 135 | } |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 136 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 137 | |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 138 | private: |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 139 | sk_sp<SkImage> fSolidImg; |
| 140 | sk_sp<SkImage> fTransparentImg; |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 141 | |
| 142 | typedef skiagm::GM INHERITED; |
senorblanco@chromium.org | e5ff3ce | 2011-12-20 20:58:18 +0000 | [diff] [blame] | 143 | }; |
reed | 5617900 | 2015-07-07 06:11:19 -0700 | [diff] [blame] | 144 | DEF_GM( return new ColorMatrixGM; ) |