bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 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" |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 9 | #include "SkColorFilter.h" |
| 10 | #include "SkGradientShader.h" |
| 11 | |
| 12 | #define WIDTH 512 |
| 13 | #define HEIGHT 1024 |
| 14 | |
| 15 | namespace skiagm { |
| 16 | |
| 17 | // Using gradients because GPU doesn't currently have an implementation of SkColorShader (duh!) |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 18 | static sk_sp<SkShader> make_color_shader(SkColor color) { |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 19 | constexpr SkPoint kPts[] = {{0, 0}, {1, 1}}; |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 20 | SkColor colors[] = {color, color}; |
| 21 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 22 | return SkGradientShader::MakeLinear(kPts, colors, nullptr, 2, SkShader::kClamp_TileMode); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 23 | } |
| 24 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 25 | static sk_sp<SkShader> make_solid_shader() { |
caryclark | 1259601 | 2015-07-29 05:27:47 -0700 | [diff] [blame] | 26 | return make_color_shader(SkColorSetARGB(0xFF, 0x42, 0x82, 0x21)); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 27 | } |
| 28 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 29 | static sk_sp<SkShader> make_transparent_shader() { |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 30 | return make_color_shader(SkColorSetARGB(0x80, 0x10, 0x70, 0x20)); |
| 31 | } |
| 32 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 33 | static sk_sp<SkShader> make_trans_black_shader() { |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 34 | return make_color_shader(0x0); |
| 35 | } |
| 36 | |
| 37 | // draws a background behind each test rect to see transparency |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 38 | static sk_sp<SkShader> make_bg_shader(int checkSize) { |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 39 | SkBitmap bmp; |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 40 | bmp.allocN32Pixels(2 * checkSize, 2 * checkSize); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 41 | SkCanvas canvas(bmp); |
caryclark | 1259601 | 2015-07-29 05:27:47 -0700 | [diff] [blame] | 42 | canvas.clear(sk_tool_utils::color_to_565(0xFF800000)); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 43 | SkPaint paint; |
caryclark | 1259601 | 2015-07-29 05:27:47 -0700 | [diff] [blame] | 44 | paint.setColor(sk_tool_utils::color_to_565(0xFF000080)); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 45 | SkRect rect0 = SkRect::MakeXYWH(0, 0, |
| 46 | SkIntToScalar(checkSize), SkIntToScalar(checkSize)); |
| 47 | SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(checkSize), SkIntToScalar(checkSize), |
| 48 | SkIntToScalar(checkSize), SkIntToScalar(checkSize)); |
| 49 | canvas.drawRect(rect1, paint); |
| 50 | canvas.drawRect(rect0, paint); |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 51 | return SkShader::MakeBitmapShader(bmp, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | class ModeColorFilterGM : public GM { |
| 55 | public: |
| 56 | ModeColorFilterGM() { |
caryclark | 65cdba6 | 2015-06-15 06:51:08 -0700 | [diff] [blame] | 57 | this->setBGColor(sk_tool_utils::color_to_565(0xFF303030)); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | protected: |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 61 | SkString onShortName() override { |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 62 | return SkString("modecolorfilters"); |
| 63 | } |
| 64 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 65 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 66 | return SkISize::Make(WIDTH, HEIGHT); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 67 | } |
| 68 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 69 | void onDraw(SkCanvas* canvas) override { |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 70 | // size of rect for each test case |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 71 | constexpr int kRectWidth = 20; |
| 72 | constexpr int kRectHeight = 20; |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 73 | |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 74 | constexpr int kCheckSize = 10; |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 75 | |
| 76 | if (!fBmpShader) { |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 77 | fBmpShader = make_bg_shader(kCheckSize); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 78 | } |
| 79 | SkPaint bgPaint; |
| 80 | bgPaint.setShader(fBmpShader); |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 81 | bgPaint.setBlendMode(SkBlendMode::kSrc); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 82 | |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 83 | sk_sp<SkShader> shaders[] = { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 84 | nullptr, // use a paint color instead of a shader |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 85 | make_solid_shader(), |
| 86 | make_transparent_shader(), |
| 87 | make_trans_black_shader(), |
| 88 | }; |
| 89 | |
| 90 | // used without shader |
| 91 | SkColor colors[] = { |
| 92 | SkColorSetARGB(0xFF, 0xFF, 0xFF, 0xFF), |
| 93 | SkColorSetARGB(0xFF, 0x00, 0x00, 0x00), |
| 94 | SkColorSetARGB(0x00, 0x00, 0x00, 0x00), |
caryclark | 1259601 | 2015-07-29 05:27:47 -0700 | [diff] [blame] | 95 | SkColorSetARGB(0xFF, 0x10, 0x20, 0x42), |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 96 | SkColorSetARGB(0xA0, 0x20, 0x30, 0x90), |
| 97 | }; |
| 98 | |
| 99 | // used with shaders |
| 100 | SkColor alphas[] = {0xFFFFFFFF, 0x80808080}; |
skia.committer@gmail.com | 24c29d9 | 2012-10-20 02:01:23 +0000 | [diff] [blame] | 101 | |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 102 | const SkBlendMode modes[] = { // currently just doing the Modes expressible as Coeffs |
| 103 | SkBlendMode::kClear, |
| 104 | SkBlendMode::kSrc, |
| 105 | SkBlendMode::kDst, |
| 106 | SkBlendMode::kSrcOver, |
| 107 | SkBlendMode::kDstOver, |
| 108 | SkBlendMode::kSrcIn, |
| 109 | SkBlendMode::kDstIn, |
| 110 | SkBlendMode::kSrcOut, |
| 111 | SkBlendMode::kDstOut, |
| 112 | SkBlendMode::kSrcATop, |
| 113 | SkBlendMode::kDstATop, |
| 114 | SkBlendMode::kXor, |
| 115 | SkBlendMode::kPlus, |
| 116 | SkBlendMode::kModulate, |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 117 | }; |
| 118 | |
| 119 | SkPaint paint; |
| 120 | int idx = 0; |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 121 | const int kRectsPerRow = SkMax32(this->getISize().fWidth / kRectWidth, 1); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 122 | for (size_t cfm = 0; cfm < SK_ARRAY_COUNT(modes); ++cfm) { |
robertphillips@google.com | 93f0332 | 2012-12-03 17:35:19 +0000 | [diff] [blame] | 123 | for (size_t cfc = 0; cfc < SK_ARRAY_COUNT(colors); ++cfc) { |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 124 | paint.setColorFilter(SkColorFilter::MakeModeFilter(colors[cfc], modes[cfm])); |
robertphillips@google.com | 93f0332 | 2012-12-03 17:35:19 +0000 | [diff] [blame] | 125 | for (size_t s = 0; s < SK_ARRAY_COUNT(shaders); ++s) { |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 126 | paint.setShader(shaders[s]); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 127 | bool hasShader = nullptr == paint.getShader(); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 128 | int paintColorCnt = hasShader ? SK_ARRAY_COUNT(alphas) : SK_ARRAY_COUNT(colors); |
| 129 | SkColor* paintColors = hasShader ? alphas : colors; |
| 130 | for (int pc = 0; pc < paintColorCnt; ++pc) { |
| 131 | paint.setColor(paintColors[pc]); |
| 132 | SkScalar x = SkIntToScalar(idx % kRectsPerRow); |
| 133 | SkScalar y = SkIntToScalar(idx / kRectsPerRow); |
| 134 | SkRect rect = SkRect::MakeXYWH(x * kRectWidth, y * kRectHeight, |
skia.committer@gmail.com | 306ab9d | 2012-12-13 02:01:33 +0000 | [diff] [blame] | 135 | SkIntToScalar(kRectWidth), |
robertphillips@google.com | ca47aae | 2012-12-12 15:58:25 +0000 | [diff] [blame] | 136 | SkIntToScalar(kRectHeight)); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 137 | canvas->saveLayer(&rect, nullptr); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 138 | canvas->drawRect(rect, bgPaint); |
| 139 | canvas->drawRect(rect, paint); |
vandebo@chromium.org | 8d8d9a5 | 2013-03-14 17:24:16 +0000 | [diff] [blame] | 140 | canvas->restore(); |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 141 | ++idx; |
| 142 | } |
| 143 | } |
| 144 | } |
| 145 | } |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | private: |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 149 | sk_sp<SkShader> fBmpShader; |
bsalomon@google.com | c6126c1 | 2012-10-19 19:26:05 +0000 | [diff] [blame] | 150 | typedef GM INHERITED; |
| 151 | }; |
| 152 | |
| 153 | ////////////////////////////////////////////////////////////////////////////// |
| 154 | |
| 155 | static GM* MyFactory(void*) { return new ModeColorFilterGM; } |
| 156 | static GMRegistry reg(MyFactory); |
| 157 | |
| 158 | } |