| Hal Canary | 6c8422c | 2020-01-10 15:22:09 -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(gpu8888diff, 256, 256, false, 0) { |
| 5 | void draw(SkCanvas* canvas) { |
| 6 | canvas->scale(16, 16); |
| 7 | SkBitmap bitmap; |
| 8 | SkImageInfo imageInfo = |
| 9 | SkImageInfo::Make(2, 2, kRGBA_8888_SkColorType, kPremul_SkAlphaType); |
| 10 | bitmap.allocPixels(imageInfo); |
| 11 | SkCanvas offscreen(bitmap); |
| 12 | offscreen.clear(SK_ColorGREEN); |
| 13 | canvas->drawBitmap(bitmap, 0, 0); |
| 14 | offscreen.clear(SK_ColorGRAY); |
| 15 | canvas->drawBitmap(bitmap, 2, 2); |
| 16 | auto pack8888 = [](unsigned a, unsigned r, unsigned g, unsigned b) -> uint32_t { |
| 17 | return (a << 24) | (b << 16) | (g << 8) | (r << 0); |
| 18 | }; |
| 19 | uint32_t red8888[] = {pack8888(0xFF, 0xFF, 0x0, 0x0), pack8888(0xFF, 0xbb, 0x0, 0x0), |
| 20 | pack8888(0xFF, 0x99, 0x0, 0x0), pack8888(0xFF, 0x55, 0x0, 0x0)}; |
| 21 | uint32_t blue8888[] = {pack8888(0xFF, 0x0, 0x0, 0x0FF), pack8888(0xFF, 0x0, 0x0, 0x0bb), |
| 22 | pack8888(0xFF, 0x0, 0x0, 0x099), pack8888(0xFF, 0x0, 0x0, 0x055)}; |
| 23 | SkPixmap redPixmap(imageInfo, &red8888, 8); |
| 24 | if (bitmap.writePixels(redPixmap, 0, 0)) { |
| 25 | canvas->drawBitmap(bitmap, 4, 4); |
| 26 | } |
| 27 | SkPixmap bluePixmap(imageInfo, &blue8888, 8); |
| 28 | if (bitmap.writePixels(bluePixmap, 0, 0)) { |
| 29 | canvas->drawBitmap(bitmap, 6, 6); |
| 30 | } |
| 31 | } |
| 32 | } // END FIDDLE |