| // Copyright 2019 Google LLC. |
| // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. |
| #include "tools/fiddle/examples.h" |
| // HASH=76d4d4a7931a48495e4d5f54e073be53 |
| REG_FIDDLE(Dither_b, 256, 256, false, 0) { |
| void draw(SkCanvas* canvas) { |
| canvas->clear(0); |
| SkBitmap bm32; |
| bm32.allocPixels(SkImageInfo::Make(20, 10, kN32_SkColorType, kPremul_SkAlphaType)); |
| SkCanvas c32(bm32); |
| SkPoint points[] = {{0, 0}, {20, 0}}; |
| SkColor colors[] = {0xFF334455, 0xFF662211 }; |
| SkPaint paint; |
| paint.setShader(SkGradientShader::MakeLinear( |
| points, colors, nullptr, std::size(colors), |
| SkTileMode::kClamp)); |
| paint.setDither(true); |
| auto img = bm32.asImage(); |
| c32.drawPaint(paint); |
| canvas->scale(12, 12); |
| canvas->drawImage(img, 0, 0); |
| paint.setBlendMode(SkBlendMode::kPlus); |
| SkSamplingOptions sampling; |
| canvas->drawImage(img, 0, 11, sampling, &paint); |
| canvas->drawImage(img, 0, 11, sampling, &paint); |
| canvas->drawImage(img, 0, 11, sampling, &paint); |
| } |
| } // END FIDDLE |