| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 1 | // Copyright 2019 Google LLC. |
| 2 | // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. |
| Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 3 | #include "tools/fiddle/examples.h" |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 4 | // HASH=29b98ebf58aa9fd1edfaabf9f4490b3a |
| Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 5 | REG_FIDDLE(Canvas_writePixels, 256, 256, false, 0) { |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 6 | void draw(SkCanvas* canvas) { |
| 7 | SkImageInfo imageInfo = SkImageInfo::MakeN32(256, 1, kPremul_SkAlphaType); |
| 8 | for (int y = 0; y < 256; ++y) { |
| 9 | uint32_t pixels[256]; |
| 10 | for (int x = 0; x < 256; ++x) { |
| 11 | pixels[x] = SkColorSetARGB(x, (x + y) % 256, x, (x - y) & 0xFF); |
| 12 | } |
| 13 | canvas->writePixels(imageInfo, &pixels, sizeof(pixels), 0, y); |
| 14 | } |
| 15 | } |
| 16 | } // END FIDDLE |