reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +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 | |
| 8 | #include "gm.h" |
Mike Klein | 33d2055 | 2017-03-22 13:47:51 -0400 | [diff] [blame] | 9 | #include "sk_tool_utils.h" |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 10 | #include "SkCanvas.h" |
| 11 | #include "SkPath.h" |
| 12 | #include "SkGradientShader.h" |
| 13 | #include "SkTypeface.h" |
| 14 | |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 15 | static sk_sp<SkShader> make_heatGradient(const SkPoint pts[2]) { |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 16 | const SkColor bw[] = { SK_ColorBLACK, SK_ColorWHITE }; |
| 17 | |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 18 | return SkGradientShader::MakeLinear(pts, bw, nullptr, SK_ARRAY_COUNT(bw), |
| 19 | SkShader::kClamp_TileMode); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 20 | } |
| 21 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 22 | /** |
| 23 | Test a set of clipping problems discovered while writing blitAntiRect, |
| 24 | and test all the code paths through the clipping blitters. |
| 25 | Each region should show as a blue center surrounded by a 2px green |
| 26 | border, with no red. |
| 27 | */ |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 28 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 29 | #define HEIGHT 480 |
| 30 | |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 31 | class GammaTextGM : public skiagm::GM { |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 32 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 33 | SkString onShortName() override { |
caryclark | 3721355 | 2015-07-24 11:08:01 -0700 | [diff] [blame] | 34 | SkString name("gammatext"); |
Mike Klein | b251b72 | 2017-11-13 11:03:16 -0500 | [diff] [blame] | 35 | name.append(sk_tool_utils::platform_font_manager()); |
caryclark | 3721355 | 2015-07-24 11:08:01 -0700 | [diff] [blame] | 36 | return name; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 37 | } |
| 38 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 39 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 40 | return SkISize::Make(1024, HEIGHT); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | static void drawGrad(SkCanvas* canvas) { |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 44 | const SkPoint pts[] = { { 0, 0 }, { 0, SkIntToScalar(HEIGHT) } }; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 45 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 46 | canvas->clear(SK_ColorRED); |
| 47 | SkPaint paint; |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 48 | paint.setShader(make_heatGradient(pts)); |
vandebo@chromium.org | c39c867 | 2012-04-17 21:46:18 +0000 | [diff] [blame] | 49 | SkRect r = { 0, 0, SkIntToScalar(1024), SkIntToScalar(HEIGHT) }; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 50 | canvas->drawRect(r, paint); |
| 51 | } |
| 52 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 53 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 54 | drawGrad(canvas); |
| 55 | |
| 56 | const SkColor fg[] = { |
| 57 | 0xFFFFFFFF, |
| 58 | 0xFFFFFF00, 0xFFFF00FF, 0xFF00FFFF, |
| 59 | 0xFFFF0000, 0xFF00FF00, 0xFF0000FF, |
| 60 | 0xFF000000, |
| 61 | }; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 62 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 63 | const char* text = "Hamburgefons"; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 64 | |
| 65 | SkPaint paint; |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 66 | SkFont font(nullptr, 16); |
| 67 | font.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 68 | |
vandebo@chromium.org | c39c867 | 2012-04-17 21:46:18 +0000 | [diff] [blame] | 69 | SkScalar x = SkIntToScalar(10); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 70 | for (size_t i = 0; i < SK_ARRAY_COUNT(fg); ++i) { |
| 71 | paint.setColor(fg[i]); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 72 | |
vandebo@chromium.org | c39c867 | 2012-04-17 21:46:18 +0000 | [diff] [blame] | 73 | SkScalar y = SkIntToScalar(40); |
| 74 | SkScalar stopy = SkIntToScalar(HEIGHT); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 75 | while (y < stopy) { |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 76 | canvas->drawString(text, x, y, font, paint); |
| 77 | y += font.getSize() * 2; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 78 | } |
| 79 | x += SkIntToScalar(1024) / SK_ARRAY_COUNT(fg); |
| 80 | } |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | private: |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 84 | typedef skiagm::GM INHERITED; |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 85 | }; |
| 86 | |
bungeman | 67b21a7 | 2015-02-19 07:45:14 -0800 | [diff] [blame] | 87 | DEF_GM( return new GammaTextGM; ) |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 88 | |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 89 | ////////////////////////////////////////////////////////////////////////////// |
| 90 | |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 91 | static sk_sp<SkShader> make_gradient(SkColor c) { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 92 | const SkPoint pts[] = { { 0, 0 }, { 240, 0 } }; |
| 93 | SkColor colors[2]; |
| 94 | colors[0] = c; |
| 95 | colors[1] = SkColorSetA(c, 0); |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 96 | return SkGradientShader::MakeLinear(pts, colors, nullptr, 2, SkShader::kClamp_TileMode); |
reed@google.com | ed3ee64 | 2012-02-14 16:12:49 +0000 | [diff] [blame] | 97 | } |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 98 | |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 99 | static void draw_pair(SkCanvas* canvas, const SkFont& font, SkColor color, |
| 100 | const sk_sp<SkShader>& shader) { |
| 101 | static const char text[] = "Now is the time for all good"; |
| 102 | SkPaint paint; |
| 103 | paint.setColor(color); |
| 104 | canvas->drawString(text, 10, 20, font, paint); |
| 105 | paint.setShader(SkShader::MakeColorShader(paint.getColor())); |
| 106 | canvas->drawString(text, 10, 40, font, paint); |
| 107 | paint.setShader(shader); |
| 108 | canvas->drawString(text, 10, 60, font, paint); |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | class GammaShaderTextGM : public skiagm::GM { |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 112 | sk_sp<SkShader> fShaders[3]; |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 113 | SkColor fColors[3]; |
| 114 | |
| 115 | public: |
| 116 | GammaShaderTextGM() { |
| 117 | const SkColor colors[] = { SK_ColorBLACK, SK_ColorRED, SK_ColorBLUE }; |
| 118 | for (size_t i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 119 | fColors[i] = colors[i]; |
| 120 | } |
| 121 | } |
| 122 | |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 123 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 124 | SkString onShortName() override { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 125 | return SkString("gammagradienttext"); |
| 126 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 127 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 128 | SkISize onISize() override { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 129 | return SkISize::Make(300, 300); |
| 130 | } |
| 131 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 132 | void onOnceBeforeDraw() override { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 133 | for (size_t i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) { |
| 134 | fShaders[i] = make_gradient(fColors[i]); |
| 135 | } |
| 136 | } |
| 137 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 138 | void onDraw(SkCanvas* canvas) override { |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 139 | SkPaint paint; |
Hal Canary | 5880791 | 2019-01-08 14:07:50 -0500 | [diff] [blame] | 140 | paint.setAntiAlias(true); |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 141 | SkFont font(SkTypeface::MakeFromName("serif", SkFontStyle::Italic()), 18); |
| 142 | font.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 143 | |
| 144 | for (size_t i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) { |
Hal Canary | 6ac0df8 | 2019-01-07 16:01:22 -0500 | [diff] [blame] | 145 | draw_pair(canvas, font, fColors[i], fShaders[i]); |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 146 | canvas->translate(0, 80); |
| 147 | } |
| 148 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 149 | |
reed | 8367b8c | 2014-08-22 08:30:20 -0700 | [diff] [blame] | 150 | private: |
| 151 | typedef skiagm::GM INHERITED; |
| 152 | }; |
| 153 | |
| 154 | DEF_GM( return new GammaShaderTextGM; ) |