commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 9 | #include "include/core/SkBlendMode.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 10 | #include "include/core/SkCanvas.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 11 | #include "include/core/SkColor.h" |
| 12 | #include "include/core/SkColorFilter.h" |
| 13 | #include "include/core/SkFont.h" |
| 14 | #include "include/core/SkFontTypes.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" |
| 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/SkTypeface.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" |
| 27 | #include "include/effects/SkLumaColorFilter.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 28 | #include "tools/ToolUtils.h" |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 29 | |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 30 | #include <string.h> |
| 31 | |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 32 | static SkScalar kSize = 80; |
| 33 | static SkScalar kInset = 10; |
| 34 | static SkColor kColor1 = SkColorSetARGB(0xff, 0xff, 0xff, 0); |
caryclark | 97a26d0 | 2015-07-17 13:20:48 -0700 | [diff] [blame] | 35 | static SkColor kColor2 = SkColorSetARGB(0xff, 0x82, 0xff, 0); |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 36 | |
| 37 | static void draw_label(SkCanvas* canvas, const char* label, |
| 38 | const SkPoint& offset) { |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 39 | SkFont font(ToolUtils::create_portable_typeface()); |
Mike Reed | 12a6d45 | 2018-12-21 22:22:31 -0500 | [diff] [blame] | 40 | font.setEdging(SkFont::Edging::kAlias); |
| 41 | |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 42 | size_t len = strlen(label); |
| 43 | |
Ben Wagner | 51e15a6 | 2019-05-07 15:38:46 -0400 | [diff] [blame] | 44 | SkScalar width = font.measureText(label, len, SkTextEncoding::kUTF8); |
| 45 | canvas->drawSimpleText(label, len, SkTextEncoding::kUTF8, offset.x() - width / 2, offset.y(), |
Mike Reed | 12a6d45 | 2018-12-21 22:22:31 -0500 | [diff] [blame] | 46 | font, SkPaint()); |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 47 | } |
| 48 | |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 49 | static void draw_scene(SkCanvas* canvas, const sk_sp<SkColorFilter>& filter, SkBlendMode mode, |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 50 | const sk_sp<SkShader>& s1, const sk_sp<SkShader>& s2) { |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 51 | SkPaint paint; |
| 52 | paint.setAntiAlias(true); |
| 53 | SkRect r, c, bounds = SkRect::MakeWH(kSize, kSize); |
| 54 | |
| 55 | c = bounds; |
| 56 | c.fRight = bounds.centerX(); |
commit-bot@chromium.org | d494b09 | 2013-10-10 20:13:51 +0000 | [diff] [blame] | 57 | paint.setARGB(0x20, 0, 0, 0xff); |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 58 | canvas->drawRect(bounds, paint); |
| 59 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 60 | canvas->saveLayer(&bounds, nullptr); |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 61 | |
| 62 | r = bounds; |
| 63 | r.inset(kInset, 0); |
| 64 | paint.setShader(s1); |
| 65 | paint.setColor(s1 ? SK_ColorBLACK : SkColorSetA(kColor1, 0x80)); |
| 66 | canvas->drawOval(r, paint); |
| 67 | if (!s1) { |
| 68 | canvas->save(); |
| 69 | canvas->clipRect(c); |
| 70 | paint.setColor(kColor1); |
| 71 | canvas->drawOval(r, paint); |
| 72 | canvas->restore(); |
| 73 | } |
| 74 | |
| 75 | SkPaint xferPaint; |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 76 | xferPaint.setBlendMode(mode); |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 77 | canvas->saveLayer(&bounds, &xferPaint); |
| 78 | |
| 79 | r = bounds; |
| 80 | r.inset(0, kInset); |
| 81 | paint.setShader(s2); |
| 82 | paint.setColor(s2 ? SK_ColorBLACK : SkColorSetA(kColor2, 0x80)); |
| 83 | paint.setColorFilter(filter); |
| 84 | canvas->drawOval(r, paint); |
| 85 | if (!s2) { |
| 86 | canvas->save(); |
| 87 | canvas->clipRect(c); |
| 88 | paint.setColor(kColor2); |
| 89 | canvas->drawOval(r, paint); |
| 90 | canvas->restore(); |
| 91 | } |
| 92 | |
| 93 | canvas->restore(); |
| 94 | canvas->restore(); |
| 95 | } |
| 96 | |
| 97 | class LumaFilterGM : public skiagm::GM { |
| 98 | public: |
| 99 | LumaFilterGM() { |
| 100 | SkColor g1Colors[] = { kColor1, SkColorSetA(kColor1, 0x20) }; |
| 101 | SkColor g2Colors[] = { kColor2, SkColorSetA(kColor2, 0x20) }; |
| 102 | SkPoint g1Points[] = { { 0, 0 }, { 0, 100 } }; |
| 103 | SkPoint g2Points[] = { { 0, 0 }, { kSize, 0 } }; |
| 104 | SkScalar pos[] = { 0.2f, 1.0f }; |
| 105 | |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 106 | fFilter = SkLumaColorFilter::Make(); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 107 | fGr1 = SkGradientShader::MakeLinear(g1Points, g1Colors, pos, SK_ARRAY_COUNT(g1Colors), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 108 | SkTileMode::kClamp); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 109 | fGr2 = SkGradientShader::MakeLinear(g2Points, g2Colors, pos, SK_ARRAY_COUNT(g2Colors), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 110 | SkTileMode::kClamp); |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | protected: |
commit-bot@chromium.org | a90c680 | 2014-04-30 13:20:45 +0000 | [diff] [blame] | 114 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 115 | SkString onShortName() override { |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 116 | return SkString("lumafilter"); |
| 117 | } |
| 118 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 119 | SkISize onISize() override { |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 120 | return SkISize::Make(600, 420); |
| 121 | } |
| 122 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 123 | void onDraw(SkCanvas* canvas) override { |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 124 | SkBlendMode modes[] = { |
| 125 | SkBlendMode::kSrcOver, |
| 126 | SkBlendMode::kDstOver, |
| 127 | SkBlendMode::kSrcATop, |
| 128 | SkBlendMode::kDstATop, |
| 129 | SkBlendMode::kSrcIn, |
| 130 | SkBlendMode::kDstIn, |
| 131 | }; |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 132 | struct { |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 133 | const sk_sp<SkShader>& fShader1; |
| 134 | const sk_sp<SkShader>& fShader2; |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 135 | } shaders[] = { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 136 | { nullptr, nullptr }, |
| 137 | { nullptr, fGr2 }, |
| 138 | { fGr1, nullptr }, |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 139 | { fGr1, fGr2 }, |
| 140 | }; |
| 141 | |
| 142 | SkScalar gridStep = kSize + 2 * kInset; |
| 143 | for (size_t i = 0; i < SK_ARRAY_COUNT(modes); ++i) { |
Mike Reed | d470673 | 2016-11-15 16:44:34 -0500 | [diff] [blame] | 144 | draw_label(canvas, SkBlendMode_Name(modes[i]), |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 145 | SkPoint::Make(gridStep * (0.5f + i), 20)); |
| 146 | } |
| 147 | |
| 148 | for (size_t i = 0; i < SK_ARRAY_COUNT(shaders); ++i) { |
| 149 | canvas->save(); |
| 150 | canvas->translate(kInset, gridStep * i + 30); |
| 151 | for (size_t m = 0; m < SK_ARRAY_COUNT(modes); ++m) { |
| 152 | draw_scene(canvas, fFilter, modes[m], shaders[i].fShader1, |
| 153 | shaders[i].fShader2); |
| 154 | canvas->translate(gridStep, 0); |
| 155 | } |
| 156 | canvas->restore(); |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | private: |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 161 | sk_sp<SkColorFilter> fFilter; |
| 162 | sk_sp<SkShader> fGr1, fGr2; |
commit-bot@chromium.org | 6c1ee2d | 2013-10-07 18:00:17 +0000 | [diff] [blame] | 163 | |
| 164 | typedef skiagm::GM INHERITED; |
| 165 | }; |
| 166 | |
| 167 | ////////////////////////////////////////////////////////////////////////////// |
| 168 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 169 | DEF_GM(return new LumaFilterGM;) |