Hal Canary | 9d9312b | 2020-01-16 12:45:33 -0500 | [diff] [blame] | 1 | // Copyright 2020 Google LLC. |
| 2 | // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. |
| 3 | #include "tools/fiddle/examples.h" |
| 4 | REG_FIDDLE_SRGB(50_percent_srgb, 256, 256, false, 0, 0, false) { |
| 5 | static sk_sp<SkShader> make() { |
| 6 | auto surf = SkSurface::MakeRasterN32Premul(2, 2); |
| 7 | surf->getCanvas()->drawColor(SK_ColorWHITE); |
| 8 | surf->getCanvas()->drawRect({0, 0, 1, 1}, SkPaint()); |
| 9 | surf->getCanvas()->drawRect({1, 1, 2, 2}, SkPaint()); |
| 10 | return surf->makeImageSnapshot()->makeShader(SkTileMode::kRepeat, |
Mike Reed | b339d05 | 2021-01-28 11:20:41 -0500 | [diff] [blame] | 11 | SkTileMode::kRepeat, |
| 12 | SkSamplingOptions(SkFilterMode::kLinear)); |
Hal Canary | 9d9312b | 2020-01-16 12:45:33 -0500 | [diff] [blame] | 13 | } |
| 14 | |
| 15 | void draw(SkCanvas* canvas) { |
| 16 | canvas->drawColor(SK_ColorWHITE); |
| 17 | |
| 18 | const SkRect r = { 0, 0, 100, 100 }; |
| 19 | SkPaint p; |
| 20 | p.setShader(make()); |
Hal Canary | 9d9312b | 2020-01-16 12:45:33 -0500 | [diff] [blame] | 21 | // this is a dither |
| 22 | canvas->drawRect({0, 0, 50, 50}, p); |
| 23 | |
| 24 | canvas->scale(0.5, 0.5); |
| 25 | canvas->translate(100, 0); |
| 26 | canvas->drawRect(r, p); |
| 27 | p.setShader(nullptr); |
| 28 | |
| 29 | p.setColor(0xFF808080); |
| 30 | canvas->translate(100, 0); |
| 31 | canvas->drawRect(r, p); |
| 32 | |
| 33 | p.setColor(0x80000000); |
| 34 | canvas->translate(100, 0); |
| 35 | canvas->drawRect(r, p); |
| 36 | } |
| 37 | } // END FIDDLE |