| 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=8aa8ca63dff4641dfc6ea8a3c555d59c |
| Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 5 | REG_FIDDLE(Image_readPixels, 256, 256, false, 3) { |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 6 | void draw(SkCanvas* canvas) { |
| 7 | canvas->scale(.5f, .5f); |
| 8 | const int width = 32; |
| 9 | const int height = 32; |
| 10 | std::vector<int32_t> dstPixels; |
| 11 | dstPixels.resize(height * width * 4); |
| 12 | SkImageInfo info = SkImageInfo::MakeN32Premul(width, height); |
| 13 | for (int y = 0; y < 512; y += height ) { |
| 14 | for (int x = 0; x < 512; x += width ) { |
| 15 | if (image->readPixels(info, &dstPixels.front(), width * 4, x, y)) { |
| 16 | SkPixmap dstPixmap(info, &dstPixels.front(), width * 4); |
| 17 | SkBitmap bitmap; |
| 18 | bitmap.installPixels(dstPixmap); |
| 19 | canvas->drawBitmap(bitmap, 0, 0); |
| 20 | } |
| 21 | canvas->translate(48, 0); |
| 22 | } |
| 23 | canvas->translate(-16 * 48, 48); |
| 24 | } |
| 25 | } |
| 26 | } // END FIDDLE |