epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +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 | */ |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 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/SkBlendMode.h" |
| 10 | #include "include/core/SkCanvas.h" |
| 11 | #include "include/core/SkColor.h" |
| 12 | #include "include/core/SkColorSpace.h" |
| 13 | #include "include/core/SkMatrix.h" |
| 14 | #include "include/core/SkPaint.h" |
| 15 | #include "include/core/SkPicture.h" |
| 16 | #include "include/core/SkPictureRecorder.h" |
| 17 | #include "include/core/SkPoint.h" |
| 18 | #include "include/core/SkRect.h" |
| 19 | #include "include/core/SkRefCnt.h" |
| 20 | #include "include/core/SkScalar.h" |
| 21 | #include "include/core/SkShader.h" |
| 22 | #include "include/core/SkSize.h" |
| 23 | #include "include/core/SkString.h" |
| 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" |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 27 | |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 28 | #include <math.h> |
| 29 | |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 30 | namespace skiagm { |
| 31 | |
| 32 | struct GradData { |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 33 | int fCount; |
| 34 | const SkColor* fColors; |
| 35 | const SkColor4f* fColors4f; |
| 36 | const SkScalar* fPos; |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 37 | }; |
| 38 | |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 39 | constexpr SkColor gColors[] = { |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 40 | SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK |
| 41 | }; |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 42 | constexpr SkColor4f gColors4f[] ={ |
| 43 | { 1.0f, 0.0f, 0.0f, 1.0f }, // Red |
| 44 | { 0.0f, 1.0f, 0.0f, 1.0f }, // Green |
| 45 | { 0.0f, 0.0f, 1.0f, 1.0f }, // Blue |
| 46 | { 1.0f, 1.0f, 1.0f, 1.0f }, // White |
| 47 | { 0.0f, 0.0f, 0.0f, 1.0f } // Black |
| 48 | }; |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 49 | constexpr SkScalar gPos0[] = { 0, SK_Scalar1 }; |
| 50 | constexpr SkScalar gPos1[] = { SK_Scalar1/4, SK_Scalar1*3/4 }; |
| 51 | constexpr SkScalar gPos2[] = { |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 52 | 0, SK_Scalar1/8, SK_Scalar1/2, SK_Scalar1*7/8, SK_Scalar1 |
| 53 | }; |
| 54 | |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 55 | constexpr SkScalar gPosClamp[] = {0.0f, 0.0f, 1.0f, 1.0f}; |
| 56 | constexpr SkColor gColorClamp[] = { |
commit-bot@chromium.org | 8ba1ad3 | 2013-08-07 15:22:13 +0000 | [diff] [blame] | 57 | SK_ColorRED, SK_ColorGREEN, SK_ColorGREEN, SK_ColorBLUE |
| 58 | }; |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 59 | constexpr SkColor4f gColor4fClamp[] ={ |
| 60 | { 1.0f, 0.0f, 0.0f, 1.0f }, // Red |
| 61 | { 0.0f, 1.0f, 0.0f, 1.0f }, // Green |
| 62 | { 0.0f, 1.0f, 0.0f, 1.0f }, // Green |
| 63 | { 0.0f, 0.0f, 1.0f, 1.0f } // Blue |
| 64 | }; |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 65 | constexpr GradData gGradData[] = { |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 66 | { 2, gColors, gColors4f, nullptr }, |
| 67 | { 2, gColors, gColors4f, gPos0 }, |
| 68 | { 2, gColors, gColors4f, gPos1 }, |
| 69 | { 5, gColors, gColors4f, nullptr }, |
| 70 | { 5, gColors, gColors4f, gPos2 }, |
| 71 | { 4, gColorClamp, gColor4fClamp, gPosClamp } |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 72 | }; |
| 73 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 74 | static sk_sp<SkShader> MakeLinear(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 75 | SkTileMode tm, const SkMatrix& localMatrix) { |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 76 | return SkGradientShader::MakeLinear(pts, data.fColors, data.fPos, data.fCount, tm, 0, |
| 77 | &localMatrix); |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 78 | } |
reed@google.com | f3c1cc9 | 2010-12-23 16:45:33 +0000 | [diff] [blame] | 79 | |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 80 | static sk_sp<SkShader> MakeLinear4f(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 81 | SkTileMode tm, const SkMatrix& localMatrix) { |
Mike Reed | 2e56f3c | 2019-03-06 11:21:15 -0500 | [diff] [blame] | 82 | auto srgb = SkColorSpace::MakeSRGB(); |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 83 | return SkGradientShader::MakeLinear(pts, data.fColors4f, srgb, data.fPos, data.fCount, tm, 0, |
| 84 | &localMatrix); |
| 85 | } |
| 86 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 87 | static sk_sp<SkShader> MakeRadial(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 88 | SkTileMode tm, const SkMatrix& localMatrix) { |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 89 | SkPoint center; |
| 90 | center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
| 91 | SkScalarAve(pts[0].fY, pts[1].fY)); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 92 | return SkGradientShader::MakeRadial(center, center.fX, data.fColors, data.fPos, data.fCount, |
| 93 | tm, 0, &localMatrix); |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 94 | } |
| 95 | |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 96 | static sk_sp<SkShader> MakeRadial4f(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 97 | SkTileMode tm, const SkMatrix& localMatrix) { |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 98 | SkPoint center; |
| 99 | center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
| 100 | SkScalarAve(pts[0].fY, pts[1].fY)); |
Mike Reed | 2e56f3c | 2019-03-06 11:21:15 -0500 | [diff] [blame] | 101 | auto srgb = SkColorSpace::MakeSRGB(); |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 102 | return SkGradientShader::MakeRadial(center, center.fX, data.fColors4f, srgb, data.fPos, |
| 103 | data.fCount, tm, 0, &localMatrix); |
| 104 | } |
| 105 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 106 | static sk_sp<SkShader> MakeSweep(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 107 | SkTileMode, const SkMatrix& localMatrix) { |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 108 | SkPoint center; |
| 109 | center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
| 110 | SkScalarAve(pts[0].fY, pts[1].fY)); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 111 | return SkGradientShader::MakeSweep(center.fX, center.fY, data.fColors, data.fPos, data.fCount, |
| 112 | 0, &localMatrix); |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 113 | } |
| 114 | |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 115 | static sk_sp<SkShader> MakeSweep4f(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 116 | SkTileMode, const SkMatrix& localMatrix) { |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 117 | SkPoint center; |
| 118 | center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
| 119 | SkScalarAve(pts[0].fY, pts[1].fY)); |
Mike Reed | 2e56f3c | 2019-03-06 11:21:15 -0500 | [diff] [blame] | 120 | auto srgb = SkColorSpace::MakeSRGB(); |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 121 | return SkGradientShader::MakeSweep(center.fX, center.fY, data.fColors4f, srgb, data.fPos, |
| 122 | data.fCount, 0, &localMatrix); |
| 123 | } |
| 124 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 125 | static sk_sp<SkShader> Make2Radial(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 126 | SkTileMode tm, const SkMatrix& localMatrix) { |
reed@google.com | f3c1cc9 | 2010-12-23 16:45:33 +0000 | [diff] [blame] | 127 | SkPoint center0, center1; |
| 128 | center0.set(SkScalarAve(pts[0].fX, pts[1].fX), |
| 129 | SkScalarAve(pts[0].fY, pts[1].fY)); |
| 130 | center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5), |
| 131 | SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4)); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 132 | return SkGradientShader::MakeTwoPointConical(center1, (pts[1].fX - pts[0].fX) / 7, |
| 133 | center0, (pts[1].fX - pts[0].fX) / 2, |
| 134 | data.fColors, data.fPos, data.fCount, tm, |
| 135 | 0, &localMatrix); |
reed@google.com | f3c1cc9 | 2010-12-23 16:45:33 +0000 | [diff] [blame] | 136 | } |
| 137 | |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 138 | static sk_sp<SkShader> Make2Radial4f(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 139 | SkTileMode tm, const SkMatrix& localMatrix) { |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 140 | SkPoint center0, center1; |
| 141 | center0.set(SkScalarAve(pts[0].fX, pts[1].fX), |
| 142 | SkScalarAve(pts[0].fY, pts[1].fY)); |
| 143 | center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3) / 5), |
| 144 | SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1) / 4)); |
Mike Reed | 2e56f3c | 2019-03-06 11:21:15 -0500 | [diff] [blame] | 145 | auto srgb = SkColorSpace::MakeSRGB(); |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 146 | return SkGradientShader::MakeTwoPointConical(center1, (pts[1].fX - pts[0].fX) / 7, |
| 147 | center0, (pts[1].fX - pts[0].fX) / 2, |
| 148 | data.fColors4f, srgb, data.fPos, data.fCount, tm, |
| 149 | 0, &localMatrix); |
| 150 | } |
| 151 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 152 | static sk_sp<SkShader> Make2Conical(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 153 | SkTileMode tm, const SkMatrix& localMatrix) { |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 154 | SkPoint center0, center1; |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 155 | SkScalar radius0 = (pts[1].fX - pts[0].fX) / 10; |
| 156 | SkScalar radius1 = (pts[1].fX - pts[0].fX) / 3; |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 157 | center0.set(pts[0].fX + radius0, pts[0].fY + radius0); |
| 158 | center1.set(pts[1].fX - radius1, pts[1].fY - radius1); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 159 | return SkGradientShader::MakeTwoPointConical(center1, radius1, center0, radius0, |
| 160 | data.fColors, data.fPos, |
| 161 | data.fCount, tm, 0, &localMatrix); |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 162 | } |
| 163 | |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 164 | static sk_sp<SkShader> Make2Conical4f(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 165 | SkTileMode tm, const SkMatrix& localMatrix) { |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 166 | SkPoint center0, center1; |
| 167 | SkScalar radius0 = (pts[1].fX - pts[0].fX) / 10; |
| 168 | SkScalar radius1 = (pts[1].fX - pts[0].fX) / 3; |
| 169 | center0.set(pts[0].fX + radius0, pts[0].fY + radius0); |
| 170 | center1.set(pts[1].fX - radius1, pts[1].fY - radius1); |
Mike Reed | 2e56f3c | 2019-03-06 11:21:15 -0500 | [diff] [blame] | 171 | auto srgb = SkColorSpace::MakeSRGB(); |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 172 | return SkGradientShader::MakeTwoPointConical(center1, radius1, center0, radius0, |
| 173 | data.fColors4f, srgb, data.fPos, |
| 174 | data.fCount, tm, 0, &localMatrix); |
| 175 | } |
| 176 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 177 | typedef sk_sp<SkShader> (*GradMaker)(const SkPoint pts[2], const GradData& data, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 178 | SkTileMode tm, const SkMatrix& localMatrix); |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 179 | constexpr GradMaker gGradMakers[] = { |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 180 | MakeLinear, MakeRadial, MakeSweep, Make2Radial, Make2Conical |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 181 | }; |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 182 | constexpr GradMaker gGradMakers4f[] ={ |
| 183 | MakeLinear4f, MakeRadial4f, MakeSweep4f, Make2Radial4f, Make2Conical4f |
| 184 | }; |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 185 | |
| 186 | /////////////////////////////////////////////////////////////////////////////// |
| 187 | |
| 188 | class GradientsGM : public GM { |
| 189 | public: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 190 | GradientsGM(bool dither) : fDither(dither) { |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 191 | this->setBGColor(0xFFDDDDDD); |
bsalomon@google.com | 48dd1a2 | 2011-10-31 14:18:20 +0000 | [diff] [blame] | 192 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 193 | |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 194 | protected: |
commit-bot@chromium.org | a90c680 | 2014-04-30 13:20:45 +0000 | [diff] [blame] | 195 | |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 196 | SkString onShortName() { |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 197 | return SkString(fDither ? "gradients" : "gradients_nodither"); |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 198 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 199 | |
edisonn@google.com | 1da3a80 | 2013-09-19 17:55:49 +0000 | [diff] [blame] | 200 | virtual SkISize onISize() { return SkISize::Make(840, 815); } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 201 | |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 202 | virtual void onDraw(SkCanvas* canvas) { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 203 | |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 204 | SkPoint pts[2] = { |
| 205 | { 0, 0 }, |
Matt Sarett | eebe87f | 2017-01-26 15:14:56 -0500 | [diff] [blame] | 206 | { SkIntToScalar(100), SkIntToScalar(100) } |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 207 | }; |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 208 | SkTileMode tm = SkTileMode::kClamp; |
Matt Sarett | eebe87f | 2017-01-26 15:14:56 -0500 | [diff] [blame] | 209 | SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) }; |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 210 | SkPaint paint; |
| 211 | paint.setAntiAlias(true); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 212 | paint.setDither(fDither); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 213 | |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 214 | canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); |
| 215 | for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) { |
| 216 | canvas->save(); |
| 217 | for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) { |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 218 | SkMatrix scale = SkMatrix::I(); |
commit-bot@chromium.org | 8ba1ad3 | 2013-08-07 15:22:13 +0000 | [diff] [blame] | 219 | |
| 220 | if (i == 5) { // if the clamp case |
commit-bot@chromium.org | 8ba1ad3 | 2013-08-07 15:22:13 +0000 | [diff] [blame] | 221 | scale.setScale(0.5f, 0.5f); |
| 222 | scale.postTranslate(25.f, 25.f); |
commit-bot@chromium.org | 8ba1ad3 | 2013-08-07 15:22:13 +0000 | [diff] [blame] | 223 | } |
skia.committer@gmail.com | d55e357 | 2013-08-08 07:01:20 +0000 | [diff] [blame] | 224 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 225 | paint.setShader(gGradMakers[j](pts, gGradData[i], tm, scale)); |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 226 | canvas->drawRect(r, paint); |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 227 | canvas->translate(0, SkIntToScalar(120)); |
| 228 | } |
| 229 | canvas->restore(); |
| 230 | canvas->translate(SkIntToScalar(120), 0); |
| 231 | } |
| 232 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 233 | |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 234 | protected: |
| 235 | bool fDither; |
| 236 | |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 237 | private: |
| 238 | typedef GM INHERITED; |
| 239 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 240 | DEF_GM( return new GradientsGM(true); ) |
| 241 | DEF_GM( return new GradientsGM(false); ) |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 242 | |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 243 | // Like the original gradients GM, but using the SkColor4f shader factories. Should be identical. |
| 244 | class Gradients4fGM : public GM { |
| 245 | public: |
| 246 | Gradients4fGM(bool dither) : fDither(dither) { |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 247 | this->setBGColor(0xFFDDDDDD); |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | protected: |
| 251 | |
| 252 | SkString onShortName() { |
| 253 | return SkString(fDither ? "gradients4f" : "gradients4f_nodither"); |
| 254 | } |
| 255 | |
| 256 | virtual SkISize onISize() { return SkISize::Make(840, 815); } |
| 257 | |
| 258 | virtual void onDraw(SkCanvas* canvas) { |
| 259 | |
| 260 | SkPoint pts[2] ={ |
| 261 | { 0, 0 }, |
| 262 | { SkIntToScalar(100), SkIntToScalar(100) } |
| 263 | }; |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 264 | SkTileMode tm = SkTileMode::kClamp; |
brianosman | e25d71c | 2016-09-28 11:27:28 -0700 | [diff] [blame] | 265 | SkRect r ={ 0, 0, SkIntToScalar(100), SkIntToScalar(100) }; |
| 266 | SkPaint paint; |
| 267 | paint.setAntiAlias(true); |
| 268 | paint.setDither(fDither); |
| 269 | |
| 270 | canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); |
| 271 | for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) { |
| 272 | canvas->save(); |
| 273 | for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers4f); j++) { |
| 274 | SkMatrix scale = SkMatrix::I(); |
| 275 | |
| 276 | if (i == 5) { // if the clamp case |
| 277 | scale.setScale(0.5f, 0.5f); |
| 278 | scale.postTranslate(25.f, 25.f); |
| 279 | } |
| 280 | |
| 281 | paint.setShader(gGradMakers4f[j](pts, gGradData[i], tm, scale)); |
| 282 | canvas->drawRect(r, paint); |
| 283 | canvas->translate(0, SkIntToScalar(120)); |
| 284 | } |
| 285 | canvas->restore(); |
| 286 | canvas->translate(SkIntToScalar(120), 0); |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | protected: |
| 291 | bool fDither; |
| 292 | |
| 293 | private: |
| 294 | typedef GM INHERITED; |
| 295 | }; |
| 296 | DEF_GM(return new Gradients4fGM(true); ) |
| 297 | DEF_GM(return new Gradients4fGM(false); ) |
| 298 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 299 | // Based on the original gradient slide, but with perspective applied to the |
| 300 | // gradient shaders' local matrices |
| 301 | class GradientsLocalPerspectiveGM : public GM { |
| 302 | public: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 303 | GradientsLocalPerspectiveGM(bool dither) : fDither(dither) { |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 304 | this->setBGColor(0xFFDDDDDD); |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 305 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 306 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 307 | protected: |
commit-bot@chromium.org | a90c680 | 2014-04-30 13:20:45 +0000 | [diff] [blame] | 308 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 309 | SkString onShortName() { |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 310 | return SkString(fDither ? "gradients_local_perspective" : |
| 311 | "gradients_local_perspective_nodither"); |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 312 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 313 | |
edisonn@google.com | 1da3a80 | 2013-09-19 17:55:49 +0000 | [diff] [blame] | 314 | virtual SkISize onISize() { return SkISize::Make(840, 815); } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 315 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 316 | virtual void onDraw(SkCanvas* canvas) { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 317 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 318 | SkPoint pts[2] = { |
| 319 | { 0, 0 }, |
| 320 | { SkIntToScalar(100), SkIntToScalar(100) } |
| 321 | }; |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 322 | SkTileMode tm = SkTileMode::kClamp; |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 323 | SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) }; |
| 324 | SkPaint paint; |
| 325 | paint.setAntiAlias(true); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 326 | paint.setDither(fDither); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 327 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 328 | canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); |
| 329 | for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) { |
| 330 | canvas->save(); |
| 331 | for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) { |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 332 | // apply an increasing y perspective as we move to the right |
| 333 | SkMatrix perspective; |
| 334 | perspective.setIdentity(); |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 335 | perspective.setPerspY(SkIntToScalar(i+1) / 500); |
| 336 | perspective.setSkewX(SkIntToScalar(i+1) / 10); |
commit-bot@chromium.org | 8ba1ad3 | 2013-08-07 15:22:13 +0000 | [diff] [blame] | 337 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 338 | paint.setShader(gGradMakers[j](pts, gGradData[i], tm, perspective)); |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 339 | canvas->drawRect(r, paint); |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 340 | canvas->translate(0, SkIntToScalar(120)); |
| 341 | } |
| 342 | canvas->restore(); |
| 343 | canvas->translate(SkIntToScalar(120), 0); |
| 344 | } |
| 345 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 346 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 347 | private: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 348 | bool fDither; |
| 349 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 350 | typedef GM INHERITED; |
| 351 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 352 | DEF_GM( return new GradientsLocalPerspectiveGM(true); ) |
| 353 | DEF_GM( return new GradientsLocalPerspectiveGM(false); ) |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 354 | |
| 355 | // Based on the original gradient slide, but with perspective applied to |
| 356 | // the view matrix |
| 357 | class GradientsViewPerspectiveGM : public GradientsGM { |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 358 | public: |
| 359 | GradientsViewPerspectiveGM(bool dither) : INHERITED(dither) { } |
| 360 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 361 | protected: |
| 362 | SkString onShortName() { |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 363 | return SkString(fDither ? "gradients_view_perspective" : |
| 364 | "gradients_view_perspective_nodither"); |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 365 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 366 | |
edisonn@google.com | 1da3a80 | 2013-09-19 17:55:49 +0000 | [diff] [blame] | 367 | virtual SkISize onISize() { return SkISize::Make(840, 500); } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 368 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 369 | virtual void onDraw(SkCanvas* canvas) { |
| 370 | SkMatrix perspective; |
| 371 | perspective.setIdentity(); |
reed | 80ea19c | 2015-05-12 10:37:34 -0700 | [diff] [blame] | 372 | perspective.setPerspY(0.001f); |
| 373 | perspective.setSkewX(SkIntToScalar(8) / 25); |
scroggo@google.com | 837d31a | 2012-08-15 18:42:45 +0000 | [diff] [blame] | 374 | canvas->concat(perspective); |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 375 | INHERITED::onDraw(canvas); |
| 376 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 377 | |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 378 | private: |
| 379 | typedef GradientsGM INHERITED; |
| 380 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 381 | DEF_GM( return new GradientsViewPerspectiveGM(true); ) |
| 382 | DEF_GM( return new GradientsViewPerspectiveGM(false); ) |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 383 | |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 384 | /* |
| 385 | Inspired by this <canvas> javascript, where we need to detect that we are not |
| 386 | solving a quadratic equation, but must instead solve a linear (since our X^2 |
| 387 | coefficient is 0) |
| 388 | |
| 389 | ctx.fillStyle = '#f00'; |
| 390 | ctx.fillRect(0, 0, 100, 50); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 391 | |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 392 | var g = ctx.createRadialGradient(-80, 25, 70, 0, 25, 150); |
| 393 | g.addColorStop(0, '#f00'); |
| 394 | g.addColorStop(0.01, '#0f0'); |
| 395 | g.addColorStop(0.99, '#0f0'); |
| 396 | g.addColorStop(1, '#f00'); |
| 397 | ctx.fillStyle = g; |
| 398 | ctx.fillRect(0, 0, 100, 50); |
| 399 | */ |
| 400 | class GradientsDegenrate2PointGM : public GM { |
| 401 | public: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 402 | GradientsDegenrate2PointGM(bool dither) : fDither(dither) {} |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 403 | |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 404 | protected: |
| 405 | SkString onShortName() { |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 406 | return SkString(fDither ? "gradients_degenerate_2pt" : "gradients_degenerate_2pt_nodither"); |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 407 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 408 | |
edisonn@google.com | 1da3a80 | 2013-09-19 17:55:49 +0000 | [diff] [blame] | 409 | virtual SkISize onISize() { return SkISize::Make(320, 320); } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 410 | |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 411 | void drawBG(SkCanvas* canvas) { |
| 412 | canvas->drawColor(SK_ColorBLUE); |
| 413 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 414 | |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 415 | virtual void onDraw(SkCanvas* canvas) { |
| 416 | this->drawBG(canvas); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 417 | |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 418 | SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorGREEN, SK_ColorRED }; |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 419 | SkScalar pos[] = { 0, 0.01f, 0.99f, SK_Scalar1 }; |
epoger@google.com | 59f3abf | 2011-07-21 15:50:33 +0000 | [diff] [blame] | 420 | SkPoint c0; |
| 421 | c0.iset(-80, 25); |
| 422 | SkScalar r0 = SkIntToScalar(70); |
| 423 | SkPoint c1; |
| 424 | c1.iset(0, 25); |
| 425 | SkScalar r1 = SkIntToScalar(150); |
reed | 9283d20 | 2016-03-13 13:01:57 -0700 | [diff] [blame] | 426 | SkPaint paint; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 427 | paint.setShader(SkGradientShader::MakeTwoPointConical(c0, r0, c1, r1, colors, |
| 428 | pos, SK_ARRAY_COUNT(pos), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 429 | SkTileMode::kClamp)); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 430 | paint.setDither(fDither); |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 431 | canvas->drawPaint(paint); |
| 432 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 433 | |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 434 | private: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 435 | bool fDither; |
| 436 | |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 437 | typedef GM INHERITED; |
| 438 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 439 | DEF_GM( return new GradientsDegenrate2PointGM(true); ) |
| 440 | DEF_GM( return new GradientsDegenrate2PointGM(false); ) |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 441 | |
caryclark | cb10071 | 2016-02-26 05:59:40 -0800 | [diff] [blame] | 442 | /* bug.skia.org/517 |
| 443 | <canvas id="canvas"></canvas> |
| 444 | <script> |
| 445 | var c = document.getElementById("canvas"); |
| 446 | var ctx = c.getContext("2d"); |
| 447 | ctx.fillStyle = '#ff0'; |
| 448 | ctx.fillRect(0, 0, 100, 50); |
| 449 | |
| 450 | var g = ctx.createRadialGradient(200, 25, 20, 200, 25, 10); |
| 451 | g.addColorStop(0, '#0f0'); |
| 452 | g.addColorStop(0.003, '#f00'); // 0.004 makes this work |
| 453 | g.addColorStop(1, '#ff0'); |
| 454 | ctx.fillStyle = g; |
| 455 | ctx.fillRect(0, 0, 100, 50); |
| 456 | </script> |
| 457 | */ |
| 458 | |
| 459 | // should draw only green |
| 460 | DEF_SIMPLE_GM(small_color_stop, canvas, 100, 150) { |
| 461 | SkColor colors[] = { SK_ColorGREEN, SK_ColorRED, SK_ColorYELLOW }; |
| 462 | SkScalar pos[] = { 0, 0.003f, SK_Scalar1 }; // 0.004f makes this work |
| 463 | SkPoint c0 = { 200, 25 }; |
| 464 | SkScalar r0 = 20; |
| 465 | SkPoint c1 = { 200, 25 }; |
| 466 | SkScalar r1 = 10; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 467 | |
caryclark | cb10071 | 2016-02-26 05:59:40 -0800 | [diff] [blame] | 468 | SkPaint paint; |
| 469 | paint.setColor(SK_ColorYELLOW); |
| 470 | canvas->drawRect(SkRect::MakeWH(100, 150), paint); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 471 | paint.setShader(SkGradientShader::MakeTwoPointConical(c0, r0, c1, r1, colors, pos, |
| 472 | SK_ARRAY_COUNT(pos), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 473 | SkTileMode::kClamp)); |
caryclark | cb10071 | 2016-02-26 05:59:40 -0800 | [diff] [blame] | 474 | canvas->drawRect(SkRect::MakeWH(100, 150), paint); |
| 475 | } |
| 476 | |
| 477 | |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 478 | /// Tests correctness of *optimized* codepaths in gradients. |
| 479 | |
| 480 | class ClampedGradientsGM : public GM { |
| 481 | public: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 482 | ClampedGradientsGM(bool dither) : fDither(dither) {} |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 483 | |
| 484 | protected: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 485 | SkString onShortName() { |
| 486 | return SkString(fDither ? "clamped_gradients" : "clamped_gradients_nodither"); |
| 487 | } |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 488 | |
edisonn@google.com | 1da3a80 | 2013-09-19 17:55:49 +0000 | [diff] [blame] | 489 | virtual SkISize onISize() { return SkISize::Make(640, 510); } |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 490 | |
| 491 | void drawBG(SkCanvas* canvas) { |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 492 | canvas->drawColor(0xFFDDDDDD); |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 493 | } |
| 494 | |
| 495 | virtual void onDraw(SkCanvas* canvas) { |
| 496 | this->drawBG(canvas); |
| 497 | |
| 498 | SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(300) }; |
| 499 | SkPaint paint; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 500 | paint.setDither(fDither); |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 501 | paint.setAntiAlias(true); |
| 502 | |
| 503 | SkPoint center; |
| 504 | center.iset(0, 300); |
| 505 | canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 506 | paint.setShader(SkGradientShader::MakeRadial( |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 507 | SkPoint(center), |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 508 | SkIntToScalar(200), gColors, nullptr, 5, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 509 | SkTileMode::kClamp)); |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 510 | canvas->drawRect(r, paint); |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 511 | } |
| 512 | |
| 513 | private: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 514 | bool fDither; |
| 515 | |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 516 | typedef GM INHERITED; |
| 517 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 518 | DEF_GM( return new ClampedGradientsGM(true); ) |
| 519 | DEF_GM( return new ClampedGradientsGM(false); ) |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 520 | |
tomhudson@google.com | b18e58c | 2012-01-30 20:00:13 +0000 | [diff] [blame] | 521 | /// Checks quality of large radial gradients, which may display |
| 522 | /// some banding. |
| 523 | |
| 524 | class RadialGradientGM : public GM { |
| 525 | public: |
| 526 | RadialGradientGM() {} |
| 527 | |
| 528 | protected: |
commit-bot@chromium.org | a90c680 | 2014-04-30 13:20:45 +0000 | [diff] [blame] | 529 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 530 | SkString onShortName() override { return SkString("radial_gradient"); } |
| 531 | SkISize onISize() override { return SkISize::Make(1280, 1280); } |
tomhudson@google.com | b18e58c | 2012-01-30 20:00:13 +0000 | [diff] [blame] | 532 | void drawBG(SkCanvas* canvas) { |
| 533 | canvas->drawColor(0xFF000000); |
| 534 | } |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 535 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | bb0948f | 2012-01-31 14:44:13 +0000 | [diff] [blame] | 536 | const SkISize dim = this->getISize(); |
| 537 | |
tomhudson@google.com | b18e58c | 2012-01-30 20:00:13 +0000 | [diff] [blame] | 538 | this->drawBG(canvas); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 539 | |
tomhudson@google.com | b18e58c | 2012-01-30 20:00:13 +0000 | [diff] [blame] | 540 | SkPaint paint; |
| 541 | paint.setDither(true); |
| 542 | SkPoint center; |
reed@google.com | bb0948f | 2012-01-31 14:44:13 +0000 | [diff] [blame] | 543 | center.set(SkIntToScalar(dim.width())/2, SkIntToScalar(dim.height())/2); |
| 544 | SkScalar radius = SkIntToScalar(dim.width())/2; |
| 545 | const SkColor colors[] = { 0x7f7f7f7f, 0x7f7f7f7f, 0xb2000000 }; |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 546 | const SkScalar pos[] = { 0.0f, |
| 547 | 0.35f, |
| 548 | 1.0f }; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 549 | paint.setShader(SkGradientShader::MakeRadial(center, radius, colors, pos, |
| 550 | SK_ARRAY_COUNT(pos), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 551 | SkTileMode::kClamp)); |
reed@google.com | bb0948f | 2012-01-31 14:44:13 +0000 | [diff] [blame] | 552 | SkRect r = { |
| 553 | 0, 0, SkIntToScalar(dim.width()), SkIntToScalar(dim.height()) |
| 554 | }; |
tomhudson@google.com | b18e58c | 2012-01-30 20:00:13 +0000 | [diff] [blame] | 555 | canvas->drawRect(r, paint); |
| 556 | } |
| 557 | private: |
| 558 | typedef GM INHERITED; |
| 559 | }; |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 560 | DEF_GM( return new RadialGradientGM; ) |
tomhudson@google.com | b18e58c | 2012-01-30 20:00:13 +0000 | [diff] [blame] | 561 | |
mtklein@google.com | 361a72f | 2013-08-19 18:43:34 +0000 | [diff] [blame] | 562 | class RadialGradient2GM : public GM { |
| 563 | public: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 564 | RadialGradient2GM(bool dither) : fDither(dither) {} |
mtklein@google.com | 361a72f | 2013-08-19 18:43:34 +0000 | [diff] [blame] | 565 | |
| 566 | protected: |
commit-bot@chromium.org | a90c680 | 2014-04-30 13:20:45 +0000 | [diff] [blame] | 567 | |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 568 | SkString onShortName() override { |
| 569 | return SkString(fDither ? "radial_gradient2" : "radial_gradient2_nodither"); |
| 570 | } |
| 571 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 572 | SkISize onISize() override { return SkISize::Make(800, 400); } |
mtklein@google.com | 361a72f | 2013-08-19 18:43:34 +0000 | [diff] [blame] | 573 | void drawBG(SkCanvas* canvas) { |
| 574 | canvas->drawColor(0xFF000000); |
| 575 | } |
| 576 | |
| 577 | // Reproduces the example given in bug 7671058. |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 578 | void onDraw(SkCanvas* canvas) override { |
mtklein@google.com | 361a72f | 2013-08-19 18:43:34 +0000 | [diff] [blame] | 579 | SkPaint paint1, paint2, paint3; |
| 580 | paint1.setStyle(SkPaint::kFill_Style); |
| 581 | paint2.setStyle(SkPaint::kFill_Style); |
| 582 | paint3.setStyle(SkPaint::kFill_Style); |
| 583 | |
| 584 | const SkColor sweep_colors[] = |
| 585 | { 0xFFFF0000, 0xFFFFFF00, 0xFF00FF00, 0xFF00FFFF, 0xFF0000FF, 0xFFFF00FF, 0xFFFF0000 }; |
| 586 | const SkColor colors1[] = { 0xFFFFFFFF, 0x00000000 }; |
| 587 | const SkColor colors2[] = { 0xFF000000, 0x00000000 }; |
| 588 | |
| 589 | const SkScalar cx = 200, cy = 200, radius = 150; |
| 590 | SkPoint center; |
| 591 | center.set(cx, cy); |
| 592 | |
mtklein@google.com | 3ef7eea | 2013-09-16 13:02:52 +0000 | [diff] [blame] | 593 | // We can either interpolate endpoints and premultiply each point (default, more precision), |
| 594 | // or premultiply the endpoints first, avoiding the need to premultiply each point (cheap). |
| 595 | const uint32_t flags[] = { 0, SkGradientShader::kInterpolateColorsInPremul_Flag }; |
mtklein@google.com | 361a72f | 2013-08-19 18:43:34 +0000 | [diff] [blame] | 596 | |
mtklein@google.com | 3ef7eea | 2013-09-16 13:02:52 +0000 | [diff] [blame] | 597 | for (size_t i = 0; i < SK_ARRAY_COUNT(flags); i++) { |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 598 | paint1.setShader(SkGradientShader::MakeSweep(cx, cy, sweep_colors, |
| 599 | nullptr, SK_ARRAY_COUNT(sweep_colors), |
| 600 | flags[i], nullptr)); |
| 601 | paint2.setShader(SkGradientShader::MakeRadial(center, radius, colors1, |
| 602 | nullptr, SK_ARRAY_COUNT(colors1), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 603 | SkTileMode::kClamp, |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 604 | flags[i], nullptr)); |
| 605 | paint3.setShader(SkGradientShader::MakeRadial(center, radius, colors2, |
| 606 | nullptr, SK_ARRAY_COUNT(colors2), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 607 | SkTileMode::kClamp, |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 608 | flags[i], nullptr)); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 609 | paint1.setDither(fDither); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 610 | paint2.setDither(fDither); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 611 | paint3.setDither(fDither); |
mtklein@google.com | 3ef7eea | 2013-09-16 13:02:52 +0000 | [diff] [blame] | 612 | |
| 613 | canvas->drawCircle(cx, cy, radius, paint1); |
| 614 | canvas->drawCircle(cx, cy, radius, paint3); |
| 615 | canvas->drawCircle(cx, cy, radius, paint2); |
| 616 | |
| 617 | canvas->translate(400, 0); |
| 618 | } |
mtklein@google.com | 361a72f | 2013-08-19 18:43:34 +0000 | [diff] [blame] | 619 | } |
| 620 | |
| 621 | private: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 622 | bool fDither; |
| 623 | |
mtklein@google.com | 361a72f | 2013-08-19 18:43:34 +0000 | [diff] [blame] | 624 | typedef GM INHERITED; |
| 625 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 626 | DEF_GM( return new RadialGradient2GM(true); ) |
| 627 | DEF_GM( return new RadialGradient2GM(false); ) |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 628 | |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 629 | // Shallow radial (shows banding on raster) |
| 630 | class RadialGradient3GM : public GM { |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 631 | public: |
| 632 | RadialGradient3GM(bool dither) : fDither(dither) { } |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 633 | |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 634 | protected: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 635 | SkString onShortName() override { |
| 636 | return SkString(fDither ? "radial_gradient3" : "radial_gradient3_nodither"); |
| 637 | } |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 638 | |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 639 | SkISize onISize() override { return SkISize::Make(500, 500); } |
reed@google.com | ac864a9 | 2011-06-27 18:11:17 +0000 | [diff] [blame] | 640 | |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 641 | bool runAsBench() const override { return true; } |
tomhudson@google.com | 5ea050f | 2011-09-26 15:03:55 +0000 | [diff] [blame] | 642 | |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 643 | void onOnceBeforeDraw() override { |
| 644 | const SkPoint center = { 0, 0 }; |
| 645 | const SkScalar kRadius = 3000; |
| 646 | const SkColor gColors[] = { 0xFFFFFFFF, 0xFF000000 }; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 647 | fShader = SkGradientShader::MakeRadial(center, kRadius, gColors, nullptr, 2, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 648 | SkTileMode::kClamp); |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 649 | } |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 650 | |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 651 | void onDraw(SkCanvas* canvas) override { |
| 652 | SkPaint paint; |
| 653 | paint.setShader(fShader); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 654 | paint.setDither(fDither); |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 655 | canvas->drawRect(SkRect::MakeWH(500, 500), paint); |
| 656 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 657 | |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 658 | private: |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 659 | sk_sp<SkShader> fShader; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 660 | bool fDither; |
| 661 | |
reed | 3d9005c | 2015-04-23 10:30:27 -0700 | [diff] [blame] | 662 | typedef GM INHERITED; |
| 663 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 664 | DEF_GM( return new RadialGradient3GM(true); ) |
| 665 | DEF_GM( return new RadialGradient3GM(false); ) |
rileya@google.com | 5cf2c28 | 2012-07-09 14:42:16 +0000 | [diff] [blame] | 666 | |
caryclark | 1864bfa | 2015-07-30 06:41:39 -0700 | [diff] [blame] | 667 | class RadialGradient4GM : public GM { |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 668 | public: |
| 669 | RadialGradient4GM(bool dither) : fDither(dither) { } |
caryclark | 1864bfa | 2015-07-30 06:41:39 -0700 | [diff] [blame] | 670 | |
| 671 | protected: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 672 | SkString onShortName() override { |
| 673 | return SkString(fDither ? "radial_gradient4" : "radial_gradient4_nodither"); |
| 674 | } |
caryclark | 1864bfa | 2015-07-30 06:41:39 -0700 | [diff] [blame] | 675 | |
| 676 | SkISize onISize() override { return SkISize::Make(500, 500); } |
| 677 | |
| 678 | void onOnceBeforeDraw() override { |
| 679 | const SkPoint center = { 250, 250 }; |
| 680 | const SkScalar kRadius = 250; |
| 681 | const SkColor colors[] = { SK_ColorRED, SK_ColorRED, SK_ColorWHITE, SK_ColorWHITE, |
| 682 | SK_ColorRED }; |
| 683 | const SkScalar pos[] = { 0, .4f, .4f, .8f, .8f, 1 }; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 684 | fShader = SkGradientShader::MakeRadial(center, kRadius, colors, pos, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 685 | SK_ARRAY_COUNT(gColors), SkTileMode::kClamp); |
caryclark | 1864bfa | 2015-07-30 06:41:39 -0700 | [diff] [blame] | 686 | } |
| 687 | |
| 688 | void onDraw(SkCanvas* canvas) override { |
| 689 | SkPaint paint; |
| 690 | paint.setAntiAlias(true); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 691 | paint.setDither(fDither); |
caryclark | 1864bfa | 2015-07-30 06:41:39 -0700 | [diff] [blame] | 692 | paint.setShader(fShader); |
| 693 | canvas->drawRect(SkRect::MakeWH(500, 500), paint); |
| 694 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 695 | |
caryclark | 1864bfa | 2015-07-30 06:41:39 -0700 | [diff] [blame] | 696 | private: |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 697 | sk_sp<SkShader> fShader; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 698 | bool fDither; |
| 699 | |
caryclark | 1864bfa | 2015-07-30 06:41:39 -0700 | [diff] [blame] | 700 | typedef GM INHERITED; |
| 701 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 702 | DEF_GM( return new RadialGradient4GM(true); ) |
| 703 | DEF_GM( return new RadialGradient4GM(false); ) |
caryclark | 1864bfa | 2015-07-30 06:41:39 -0700 | [diff] [blame] | 704 | |
caryclark | 159fa57 | 2015-07-30 12:35:48 -0700 | [diff] [blame] | 705 | class LinearGradientGM : public GM { |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 706 | public: |
| 707 | LinearGradientGM(bool dither) : fDither(dither) { } |
caryclark | 159fa57 | 2015-07-30 12:35:48 -0700 | [diff] [blame] | 708 | |
| 709 | protected: |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 710 | SkString onShortName() override { |
| 711 | return SkString(fDither ? "linear_gradient" : "linear_gradient_nodither"); |
| 712 | } |
| 713 | |
caryclark | 159fa57 | 2015-07-30 12:35:48 -0700 | [diff] [blame] | 714 | const SkScalar kWidthBump = 30.f; |
| 715 | const SkScalar kHeight = 5.f; |
| 716 | const SkScalar kMinWidth = 540.f; |
| 717 | |
| 718 | SkISize onISize() override { return SkISize::Make(500, 500); } |
| 719 | |
| 720 | void onOnceBeforeDraw() override { |
| 721 | SkPoint pts[2] = { {0, 0}, {0, 0} }; |
| 722 | const SkColor colors[] = { SK_ColorWHITE, SK_ColorWHITE, 0xFF008200, 0xFF008200, |
| 723 | SK_ColorWHITE, SK_ColorWHITE }; |
| 724 | const SkScalar unitPos[] = { 0, 50, 70, 500, 540 }; |
| 725 | SkScalar pos[6]; |
| 726 | pos[5] = 1; |
| 727 | for (int index = 0; index < (int) SK_ARRAY_COUNT(fShader); ++index) { |
| 728 | pts[1].fX = 500.f + index * kWidthBump; |
| 729 | for (int inner = 0; inner < (int) SK_ARRAY_COUNT(unitPos); ++inner) { |
| 730 | pos[inner] = unitPos[inner] / (kMinWidth + index * kWidthBump); |
| 731 | } |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 732 | fShader[index] = SkGradientShader::MakeLinear(pts, colors, pos, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 733 | SK_ARRAY_COUNT(gColors), SkTileMode::kClamp); |
caryclark | 159fa57 | 2015-07-30 12:35:48 -0700 | [diff] [blame] | 734 | } |
| 735 | } |
| 736 | |
| 737 | void onDraw(SkCanvas* canvas) override { |
| 738 | SkPaint paint; |
| 739 | paint.setAntiAlias(true); |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 740 | paint.setDither(fDither); |
caryclark | 159fa57 | 2015-07-30 12:35:48 -0700 | [diff] [blame] | 741 | for (int index = 0; index < (int) SK_ARRAY_COUNT(fShader); ++index) { |
| 742 | paint.setShader(fShader[index]); |
| 743 | canvas->drawRect(SkRect::MakeLTRB(0, index * kHeight, kMinWidth + index * kWidthBump, |
| 744 | (index + 1) * kHeight), paint); |
| 745 | } |
| 746 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 747 | |
caryclark | 159fa57 | 2015-07-30 12:35:48 -0700 | [diff] [blame] | 748 | private: |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 749 | sk_sp<SkShader> fShader[100]; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 750 | bool fDither; |
| 751 | |
caryclark | 159fa57 | 2015-07-30 12:35:48 -0700 | [diff] [blame] | 752 | typedef GM INHERITED; |
| 753 | }; |
fmalita | 063675b | 2015-10-12 10:41:48 -0700 | [diff] [blame] | 754 | DEF_GM( return new LinearGradientGM(true); ) |
| 755 | DEF_GM( return new LinearGradientGM(false); ) |
caryclark | 159fa57 | 2015-07-30 12:35:48 -0700 | [diff] [blame] | 756 | |
fmalita | 8b78bd6 | 2015-11-20 13:58:24 -0800 | [diff] [blame] | 757 | class LinearGradientTinyGM : public GM { |
fmalita | bc590c0 | 2016-02-22 09:12:33 -0800 | [diff] [blame] | 758 | public: |
| 759 | LinearGradientTinyGM(uint32_t flags, const char* suffix = nullptr) |
| 760 | : fName("linear_gradient_tiny") |
| 761 | , fFlags(flags) { |
| 762 | fName.append(suffix); |
| 763 | } |
| 764 | |
fmalita | 8b78bd6 | 2015-11-20 13:58:24 -0800 | [diff] [blame] | 765 | protected: |
| 766 | SkString onShortName() override { |
fmalita | bc590c0 | 2016-02-22 09:12:33 -0800 | [diff] [blame] | 767 | return fName; |
fmalita | 8b78bd6 | 2015-11-20 13:58:24 -0800 | [diff] [blame] | 768 | } |
| 769 | |
| 770 | SkISize onISize() override { |
| 771 | return SkISize::Make(600, 500); |
| 772 | } |
| 773 | |
| 774 | void onDraw(SkCanvas* canvas) override { |
| 775 | const SkScalar kRectSize = 100; |
| 776 | const unsigned kStopCount = 3; |
| 777 | const SkColor colors[kStopCount] = { SK_ColorGREEN, SK_ColorRED, SK_ColorGREEN }; |
| 778 | const struct { |
| 779 | SkPoint pts[2]; |
| 780 | SkScalar pos[kStopCount]; |
| 781 | } configs[] = { |
reed | de3aac8 | 2015-11-22 13:00:04 -0800 | [diff] [blame] | 782 | { { SkPoint::Make(0, 0), SkPoint::Make(10, 0) }, { 0, 0.999999f, 1 }}, |
| 783 | { { SkPoint::Make(0, 0), SkPoint::Make(10, 0) }, { 0, 0.000001f, 1 }}, |
| 784 | { { SkPoint::Make(0, 0), SkPoint::Make(10, 0) }, { 0, 0.999999999f, 1 }}, |
| 785 | { { SkPoint::Make(0, 0), SkPoint::Make(10, 0) }, { 0, 0.000000001f, 1 }}, |
fmalita | 8b78bd6 | 2015-11-20 13:58:24 -0800 | [diff] [blame] | 786 | |
reed | de3aac8 | 2015-11-22 13:00:04 -0800 | [diff] [blame] | 787 | { { SkPoint::Make(0, 0), SkPoint::Make(0, 10) }, { 0, 0.999999f, 1 }}, |
| 788 | { { SkPoint::Make(0, 0), SkPoint::Make(0, 10) }, { 0, 0.000001f, 1 }}, |
| 789 | { { SkPoint::Make(0, 0), SkPoint::Make(0, 10) }, { 0, 0.999999999f, 1 }}, |
| 790 | { { SkPoint::Make(0, 0), SkPoint::Make(0, 10) }, { 0, 0.000000001f, 1 }}, |
| 791 | |
| 792 | { { SkPoint::Make(0, 0), SkPoint::Make(0.00001f, 0) }, { 0, 0.5f, 1 }}, |
| 793 | { { SkPoint::Make(9.99999f, 0), SkPoint::Make(10, 0) }, { 0, 0.5f, 1 }}, |
| 794 | { { SkPoint::Make(0, 0), SkPoint::Make(0, 0.00001f) }, { 0, 0.5f, 1 }}, |
| 795 | { { SkPoint::Make(0, 9.99999f), SkPoint::Make(0, 10) }, { 0, 0.5f, 1 }}, |
fmalita | 8b78bd6 | 2015-11-20 13:58:24 -0800 | [diff] [blame] | 796 | }; |
| 797 | |
| 798 | SkPaint paint; |
| 799 | for (unsigned i = 0; i < SK_ARRAY_COUNT(configs); ++i) { |
| 800 | SkAutoCanvasRestore acr(canvas, true); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 801 | paint.setShader(SkGradientShader::MakeLinear(configs[i].pts, colors, configs[i].pos, |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 802 | kStopCount, SkTileMode::kClamp, |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 803 | fFlags, nullptr)); |
fmalita | 8b78bd6 | 2015-11-20 13:58:24 -0800 | [diff] [blame] | 804 | canvas->translate(kRectSize * ((i % 4) * 1.5f + 0.25f), |
| 805 | kRectSize * ((i / 4) * 1.5f + 0.25f)); |
| 806 | |
fmalita | 8b78bd6 | 2015-11-20 13:58:24 -0800 | [diff] [blame] | 807 | canvas->drawRect(SkRect::MakeWH(kRectSize, kRectSize), paint); |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | private: |
| 812 | typedef GM INHERITED; |
fmalita | 8b78bd6 | 2015-11-20 13:58:24 -0800 | [diff] [blame] | 813 | |
fmalita | bc590c0 | 2016-02-22 09:12:33 -0800 | [diff] [blame] | 814 | SkString fName; |
| 815 | uint32_t fFlags; |
| 816 | }; |
| 817 | DEF_GM( return new LinearGradientTinyGM(0); ) |
reed@android.com | 42309d4 | 2009-06-22 02:06:35 +0000 | [diff] [blame] | 818 | } |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 819 | |
| 820 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 821 | |
| 822 | struct GradRun { |
| 823 | SkColor fColors[4]; |
| 824 | SkScalar fPos[4]; |
| 825 | int fCount; |
| 826 | }; |
| 827 | |
| 828 | #define SIZE 121 |
| 829 | |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 830 | static sk_sp<SkShader> make_linear(const GradRun& run, SkTileMode mode) { |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 831 | const SkPoint pts[] { { 30, 30 }, { SIZE - 30, SIZE - 30 } }; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 832 | return SkGradientShader::MakeLinear(pts, run.fColors, run.fPos, run.fCount, mode); |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 833 | } |
| 834 | |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 835 | static sk_sp<SkShader> make_radial(const GradRun& run, SkTileMode mode) { |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 836 | const SkScalar half = SIZE * 0.5f; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 837 | return SkGradientShader::MakeRadial({half,half}, half - 10, run.fColors, run.fPos, |
| 838 | run.fCount, mode); |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 839 | } |
| 840 | |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 841 | static sk_sp<SkShader> make_conical(const GradRun& run, SkTileMode mode) { |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 842 | const SkScalar half = SIZE * 0.5f; |
| 843 | const SkPoint center { half, half }; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 844 | return SkGradientShader::MakeTwoPointConical(center, 20, center, half - 10, |
| 845 | run.fColors, run.fPos, run.fCount, mode); |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 846 | } |
| 847 | |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 848 | static sk_sp<SkShader> make_sweep(const GradRun& run, SkTileMode) { |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 849 | const SkScalar half = SIZE * 0.5f; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 850 | return SkGradientShader::MakeSweep(half, half, run.fColors, run.fPos, run.fCount); |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 851 | } |
| 852 | |
| 853 | /* |
| 854 | * Exercise duplicate color-stops, at the ends, and in the middle |
| 855 | * |
| 856 | * At the time of this writing, only Linear correctly deals with duplicates at the ends, |
| 857 | * and then only correctly on CPU backend. |
| 858 | */ |
| 859 | DEF_SIMPLE_GM(gradients_dup_color_stops, canvas, 704, 564) { |
| 860 | const SkColor preColor = 0xFFFF0000; // clamp color before start |
| 861 | const SkColor postColor = 0xFF0000FF; // clamp color after end |
| 862 | const SkColor color0 = 0xFF000000; |
| 863 | const SkColor color1 = 0xFF00FF00; |
| 864 | const SkColor badColor = 0xFF3388BB; // should never be seen, fills out fixed-size array |
| 865 | |
| 866 | const GradRun runs[] = { |
| 867 | { { color0, color1, badColor, badColor }, |
| 868 | { 0, 1, -1, -1 }, |
| 869 | 2, |
| 870 | }, |
| 871 | { { preColor, color0, color1, badColor }, |
| 872 | { 0, 0, 1, -1 }, |
| 873 | 3, |
| 874 | }, |
| 875 | { { color0, color1, postColor, badColor }, |
| 876 | { 0, 1, 1, -1 }, |
| 877 | 3, |
| 878 | }, |
| 879 | { { preColor, color0, color1, postColor }, |
| 880 | { 0, 0, 1, 1 }, |
| 881 | 4, |
| 882 | }, |
| 883 | { { color0, color0, color1, color1 }, |
| 884 | { 0, 0.5f, 0.5f, 1 }, |
| 885 | 4, |
| 886 | }, |
| 887 | }; |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 888 | sk_sp<SkShader> (*factories[])(const GradRun&, SkTileMode) { |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 889 | make_linear, make_radial, make_conical, make_sweep |
| 890 | }; |
| 891 | |
| 892 | const SkRect rect = SkRect::MakeWH(SIZE, SIZE); |
| 893 | const SkScalar dx = SIZE + 20; |
| 894 | const SkScalar dy = SIZE + 20; |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 895 | const SkTileMode mode = SkTileMode::kClamp; |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 896 | |
| 897 | SkPaint paint; |
| 898 | canvas->translate(10, 10 - dy); |
| 899 | for (auto factory : factories) { |
| 900 | canvas->translate(0, dy); |
| 901 | SkAutoCanvasRestore acr(canvas, true); |
| 902 | for (const auto& run : runs) { |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 903 | paint.setShader(factory(run, mode)); |
reed | d4eaa25 | 2016-01-22 10:35:26 -0800 | [diff] [blame] | 904 | canvas->drawRect(rect, paint); |
| 905 | canvas->translate(dx, 0); |
| 906 | } |
| 907 | } |
| 908 | } |
fmalita | bc590c0 | 2016-02-22 09:12:33 -0800 | [diff] [blame] | 909 | |
Florin Malita | d1aedde | 2017-06-07 15:03:38 -0400 | [diff] [blame] | 910 | static void draw_many_stops(SkCanvas* canvas) { |
fmalita | bc590c0 | 2016-02-22 09:12:33 -0800 | [diff] [blame] | 911 | const unsigned kStopCount = 200; |
| 912 | const SkPoint pts[] = { {50, 50}, {450, 465}}; |
| 913 | |
| 914 | SkColor colors[kStopCount]; |
| 915 | for (unsigned i = 0; i < kStopCount; i++) { |
| 916 | switch (i % 5) { |
| 917 | case 0: colors[i] = SK_ColorRED; break; |
| 918 | case 1: colors[i] = SK_ColorGREEN; break; |
| 919 | case 2: colors[i] = SK_ColorGREEN; break; |
| 920 | case 3: colors[i] = SK_ColorBLUE; break; |
| 921 | case 4: colors[i] = SK_ColorRED; break; |
| 922 | } |
| 923 | } |
| 924 | |
reed | 9283d20 | 2016-03-13 13:01:57 -0700 | [diff] [blame] | 925 | SkPaint p; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 926 | p.setShader(SkGradientShader::MakeLinear( |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 927 | pts, colors, nullptr, SK_ARRAY_COUNT(colors), SkTileMode::kClamp)); |
reed | 9283d20 | 2016-03-13 13:01:57 -0700 | [diff] [blame] | 928 | |
fmalita | bc590c0 | 2016-02-22 09:12:33 -0800 | [diff] [blame] | 929 | canvas->drawRect(SkRect::MakeXYWH(0, 0, 500, 500), p); |
| 930 | } |
| 931 | |
| 932 | DEF_SIMPLE_GM(gradient_many_stops, canvas, 500, 500) { |
Florin Malita | d1aedde | 2017-06-07 15:03:38 -0400 | [diff] [blame] | 933 | draw_many_stops(canvas); |
fmalita | bc590c0 | 2016-02-22 09:12:33 -0800 | [diff] [blame] | 934 | } |
| 935 | |
Florin Malita | a0ac963 | 2017-05-03 13:07:28 -0400 | [diff] [blame] | 936 | static void draw_circle_shader(SkCanvas* canvas, SkScalar cx, SkScalar cy, SkScalar r, |
| 937 | sk_sp<SkShader> (*shaderFunc)()) { |
| 938 | SkPaint p; |
| 939 | p.setAntiAlias(true); |
| 940 | p.setShader(shaderFunc()); |
| 941 | canvas->drawCircle(cx, cy, r, p); |
| 942 | |
| 943 | p.setShader(nullptr); |
| 944 | p.setColor(SK_ColorGRAY); |
| 945 | p.setStyle(SkPaint::kStroke_Style); |
| 946 | p.setStrokeWidth(2); |
| 947 | canvas->drawCircle(cx, cy, r, p); |
| 948 | } |
| 949 | |
| 950 | DEF_SIMPLE_GM(fancy_gradients, canvas, 800, 300) { |
| 951 | draw_circle_shader(canvas, 150, 150, 100, []() -> sk_sp<SkShader> { |
| 952 | // Checkerboard using two linear gradients + picture shader. |
| 953 | SkScalar kTileSize = 80 / sqrtf(2); |
| 954 | SkColor colors1[] = { 0xff000000, 0xff000000, |
| 955 | 0xffffffff, 0xffffffff, |
| 956 | 0xff000000, 0xff000000 }; |
| 957 | SkColor colors2[] = { 0xff000000, 0xff000000, |
| 958 | 0x00000000, 0x00000000, |
| 959 | 0xff000000, 0xff000000 }; |
| 960 | SkScalar pos[] = { 0, .25f, .25f, .75f, .75f, 1 }; |
| 961 | static_assert(SK_ARRAY_COUNT(colors1) == SK_ARRAY_COUNT(pos), "color/pos size mismatch"); |
| 962 | static_assert(SK_ARRAY_COUNT(colors2) == SK_ARRAY_COUNT(pos), "color/pos size mismatch"); |
| 963 | |
| 964 | SkPictureRecorder recorder; |
| 965 | recorder.beginRecording(SkRect::MakeWH(kTileSize, kTileSize)); |
| 966 | |
| 967 | SkPaint p; |
| 968 | |
| 969 | SkPoint pts1[] = { { 0, 0 }, { kTileSize, kTileSize }}; |
| 970 | p.setShader(SkGradientShader::MakeLinear(pts1, colors1, pos, SK_ARRAY_COUNT(colors1), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 971 | SkTileMode::kClamp, 0, nullptr)); |
Florin Malita | a0ac963 | 2017-05-03 13:07:28 -0400 | [diff] [blame] | 972 | recorder.getRecordingCanvas()->drawPaint(p); |
| 973 | |
| 974 | SkPoint pts2[] = { { 0, kTileSize }, { kTileSize, 0 }}; |
| 975 | p.setShader(SkGradientShader::MakeLinear(pts2, colors2, pos, SK_ARRAY_COUNT(colors2), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 976 | SkTileMode::kClamp, 0, nullptr)); |
Florin Malita | a0ac963 | 2017-05-03 13:07:28 -0400 | [diff] [blame] | 977 | recorder.getRecordingCanvas()->drawPaint(p); |
| 978 | |
| 979 | SkMatrix m = SkMatrix::I(); |
| 980 | m.preRotate(45); |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 981 | return recorder.finishRecordingAsPicture()->makeShader( |
| 982 | SkTileMode::kRepeat, |
| 983 | SkTileMode::kRepeat, &m, nullptr); |
Florin Malita | a0ac963 | 2017-05-03 13:07:28 -0400 | [diff] [blame] | 984 | }); |
| 985 | |
| 986 | draw_circle_shader(canvas, 400, 150, 100, []() -> sk_sp<SkShader> { |
| 987 | // Checkerboard using a sweep gradient + picture shader. |
| 988 | SkScalar kTileSize = 80; |
| 989 | SkColor colors[] = { 0xff000000, 0xff000000, |
| 990 | 0xffffffff, 0xffffffff, |
| 991 | 0xff000000, 0xff000000, |
| 992 | 0xffffffff, 0xffffffff }; |
| 993 | SkScalar pos[] = { 0, .25f, .25f, .5f, .5f, .75f, .75f, 1 }; |
| 994 | static_assert(SK_ARRAY_COUNT(colors) == SK_ARRAY_COUNT(pos), "color/pos size mismatch"); |
| 995 | |
| 996 | SkPaint p; |
| 997 | p.setShader(SkGradientShader::MakeSweep(kTileSize / 2, kTileSize / 2, |
| 998 | colors, pos, SK_ARRAY_COUNT(colors), 0, nullptr)); |
| 999 | SkPictureRecorder recorder; |
| 1000 | recorder.beginRecording(SkRect::MakeWH(kTileSize, kTileSize))->drawPaint(p); |
| 1001 | |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 1002 | return recorder.finishRecordingAsPicture()->makeShader( |
| 1003 | SkTileMode::kRepeat, |
| 1004 | SkTileMode::kRepeat); |
Florin Malita | a0ac963 | 2017-05-03 13:07:28 -0400 | [diff] [blame] | 1005 | }); |
| 1006 | |
| 1007 | draw_circle_shader(canvas, 650, 150, 100, []() -> sk_sp<SkShader> { |
| 1008 | // Dartboard using sweep + radial. |
| 1009 | const SkColor a = 0xffffffff; |
| 1010 | const SkColor b = 0xff000000; |
| 1011 | SkColor colors[] = { a, a, b, b, a, a, b, b, a, a, b, b, a, a, b, b}; |
| 1012 | SkScalar pos[] = { 0, .125f, .125f, .25f, .25f, .375f, .375f, .5f, .5f, |
| 1013 | .625f, .625f, .75f, .75f, .875f, .875f, 1}; |
| 1014 | static_assert(SK_ARRAY_COUNT(colors) == SK_ARRAY_COUNT(pos), "color/pos size mismatch"); |
| 1015 | |
| 1016 | SkPoint center = { 650, 150 }; |
| 1017 | sk_sp<SkShader> sweep1 = SkGradientShader::MakeSweep(center.x(), center.y(), colors, pos, |
| 1018 | SK_ARRAY_COUNT(colors), 0, nullptr); |
| 1019 | SkMatrix m = SkMatrix::I(); |
| 1020 | m.preRotate(22.5f, center.x(), center.y()); |
| 1021 | sk_sp<SkShader> sweep2 = SkGradientShader::MakeSweep(center.x(), center.y(), colors, pos, |
| 1022 | SK_ARRAY_COUNT(colors), 0, &m); |
| 1023 | |
Mike Reed | c8bea7d | 2019-04-09 13:55:36 -0400 | [diff] [blame] | 1024 | sk_sp<SkShader> sweep(SkShaders::Blend(SkBlendMode::kExclusion, sweep1, sweep2)); |
Florin Malita | a0ac963 | 2017-05-03 13:07:28 -0400 | [diff] [blame] | 1025 | |
| 1026 | SkScalar radialPos[] = { 0, .02f, .02f, .04f, .04f, .08f, .08f, .16f, .16f, .31f, .31f, |
| 1027 | .62f, .62f, 1, 1, 1 }; |
| 1028 | static_assert(SK_ARRAY_COUNT(colors) == SK_ARRAY_COUNT(radialPos), |
| 1029 | "color/pos size mismatch"); |
| 1030 | |
Mike Reed | c8bea7d | 2019-04-09 13:55:36 -0400 | [diff] [blame] | 1031 | return SkShaders::Blend(SkBlendMode::kExclusion, sweep, |
| 1032 | SkGradientShader::MakeRadial(center, 100, colors, |
| 1033 | radialPos, |
| 1034 | SK_ARRAY_COUNT(radialPos), |
| 1035 | SkTileMode::kClamp)); |
Florin Malita | a0ac963 | 2017-05-03 13:07:28 -0400 | [diff] [blame] | 1036 | }); |
| 1037 | } |
Florin Malita | 5a9a981 | 2017-08-01 16:38:08 -0400 | [diff] [blame] | 1038 | |
Florin Malita | 4d27429 | 2017-08-02 10:04:48 -0400 | [diff] [blame] | 1039 | DEF_SIMPLE_GM(sweep_tiling, canvas, 690, 512) { |
Florin Malita | 5a9a981 | 2017-08-01 16:38:08 -0400 | [diff] [blame] | 1040 | static constexpr SkScalar size = 160; |
| 1041 | static constexpr SkColor colors[] = { SK_ColorBLUE, SK_ColorYELLOW, SK_ColorGREEN }; |
| 1042 | static constexpr SkScalar pos[] = { 0, .25f, .50f }; |
| 1043 | static_assert(SK_ARRAY_COUNT(colors) == SK_ARRAY_COUNT(pos), "size mismatch"); |
| 1044 | |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 1045 | static constexpr SkTileMode modes[] = { SkTileMode::kClamp, |
| 1046 | SkTileMode::kRepeat, |
| 1047 | SkTileMode::kMirror }; |
Florin Malita | 5a9a981 | 2017-08-01 16:38:08 -0400 | [diff] [blame] | 1048 | |
| 1049 | static const struct { |
| 1050 | SkScalar start, end; |
| 1051 | } angles[] = { |
| 1052 | { -330, -270 }, |
| 1053 | { 30, 90 }, |
| 1054 | { 390, 450 }, |
Florin Malita | 50f7a1e | 2017-08-02 09:40:26 -0400 | [diff] [blame] | 1055 | { -30, 800 }, |
Florin Malita | 5a9a981 | 2017-08-01 16:38:08 -0400 | [diff] [blame] | 1056 | }; |
| 1057 | |
| 1058 | SkPaint p; |
| 1059 | const SkRect r = SkRect::MakeWH(size, size); |
| 1060 | |
| 1061 | for (auto mode : modes) { |
| 1062 | { |
| 1063 | SkAutoCanvasRestore acr(canvas, true); |
| 1064 | |
| 1065 | for (auto angle : angles) { |
| 1066 | p.setShader(SkGradientShader::MakeSweep(size / 2, size / 2, colors, pos, |
| 1067 | SK_ARRAY_COUNT(colors), mode, |
| 1068 | angle.start, angle.end, 0, nullptr)); |
| 1069 | |
| 1070 | canvas->drawRect(r, p); |
| 1071 | canvas->translate(size * 1.1f, 0); |
| 1072 | } |
| 1073 | } |
| 1074 | canvas->translate(0, size * 1.1f); |
| 1075 | } |
| 1076 | } |
Florin Malita | 36f054a | 2017-08-03 12:55:41 -0400 | [diff] [blame] | 1077 | |
| 1078 | // Exercises the special-case Ganesh gradient effects. |
Brian Osman | a8e5744 | 2017-09-11 17:21:35 -0400 | [diff] [blame] | 1079 | DEF_SIMPLE_GM(gradients_interesting, canvas, 640, 1300) { |
Florin Malita | 36f054a | 2017-08-03 12:55:41 -0400 | [diff] [blame] | 1080 | static const SkColor colors2[] = { SK_ColorRED, SK_ColorBLUE }; |
| 1081 | static const SkColor colors3[] = { SK_ColorRED, SK_ColorYELLOW, SK_ColorBLUE }; |
| 1082 | static const SkColor colors4[] = { SK_ColorRED, SK_ColorYELLOW, SK_ColorYELLOW, SK_ColorBLUE }; |
| 1083 | |
Brian Osman | a8e5744 | 2017-09-11 17:21:35 -0400 | [diff] [blame] | 1084 | static const SkScalar softRight[] = { 0, .999f, 1 }; // Based on Android launcher "clipping" |
| 1085 | static const SkScalar hardLeft[] = { 0, 0, 1 }; |
| 1086 | static const SkScalar hardRight[] = { 0, 1, 1 }; |
| 1087 | static const SkScalar hardCenter[] = { 0, .5f, .5f, 1 }; |
Florin Malita | 36f054a | 2017-08-03 12:55:41 -0400 | [diff] [blame] | 1088 | |
| 1089 | static const struct { |
| 1090 | const SkColor* colors; |
| 1091 | const SkScalar* pos; |
| 1092 | int count; |
| 1093 | } configs[] = { |
| 1094 | { colors2, nullptr, 2 }, // kTwo_ColorType |
Brian Osman | 2ab4b2b | 2017-09-12 11:20:56 -0400 | [diff] [blame] | 1095 | { colors3, nullptr, 3 }, // kThree_ColorType (simple) |
| 1096 | { colors3, softRight, 3 }, // kThree_ColorType (tricky) |
Florin Malita | 36f054a | 2017-08-03 12:55:41 -0400 | [diff] [blame] | 1097 | { colors3, hardLeft, 3 }, // kHardStopLeftEdged_ColorType |
| 1098 | { colors3, hardRight, 3 }, // kHardStopRightEdged_ColorType |
| 1099 | { colors4, hardCenter, 4 }, // kSingleHardStop_ColorType |
| 1100 | }; |
| 1101 | |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 1102 | static const SkTileMode modes[] = { |
| 1103 | SkTileMode::kClamp, |
| 1104 | SkTileMode::kRepeat, |
| 1105 | SkTileMode::kMirror, |
Florin Malita | 36f054a | 2017-08-03 12:55:41 -0400 | [diff] [blame] | 1106 | }; |
| 1107 | |
| 1108 | static constexpr SkScalar size = 200; |
| 1109 | static const SkPoint pts[] = { { size / 3, size / 3 }, { size * 2 / 3, size * 2 / 3} }; |
| 1110 | |
| 1111 | SkPaint p; |
| 1112 | for (const auto& cfg : configs) { |
| 1113 | { |
| 1114 | SkAutoCanvasRestore acr(canvas, true); |
| 1115 | for (auto mode : modes) { |
| 1116 | p.setShader(SkGradientShader::MakeLinear(pts, cfg.colors, cfg.pos, cfg.count, |
| 1117 | mode)); |
| 1118 | canvas->drawRect(SkRect::MakeWH(size, size), p); |
| 1119 | canvas->translate(size * 1.1f, 0); |
| 1120 | } |
| 1121 | } |
| 1122 | canvas->translate(0, size * 1.1f); |
| 1123 | } |
| 1124 | } |