| Hal Canary | 83c2f70 | 2019-03-07 14:53:03 -0500 | [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. |
| 3 | #include "fiddle/examples.h" |
| 4 | // HASH=33a360c3404ac21db801943336843d8e |
| 5 | REG_FIDDLE(ImageInfo_005, 256, 96, false, 0) { |
| 6 | void draw(SkCanvas* canvas) { |
| 7 | canvas->scale(16, 16); |
| 8 | SkBitmap bitmap; |
| 9 | SkImageInfo imageInfo = SkImageInfo::Make(2, 2, kARGB_4444_SkColorType, kPremul_SkAlphaType); |
| 10 | bitmap.allocPixels(imageInfo); |
| 11 | SkCanvas offscreen(bitmap); |
| 12 | offscreen.clear(SK_ColorGREEN); |
| 13 | canvas->drawBitmap(bitmap, 0, 0); |
| 14 | auto pack4444 = [](unsigned a, unsigned r, unsigned g, unsigned b) -> uint16_t { |
| 15 | return (a << 0) | (b << 4) | (g << 8) | (r << 12); |
| 16 | }; |
| 17 | uint16_t red4444[] = { pack4444(0xF, 0xF, 0x0, 0x0), pack4444(0xF, 0xb, 0x0, 0x0), |
| 18 | pack4444(0xF, 0x7, 0x0, 0x0), pack4444(0xF, 0x3, 0x0, 0x0) }; |
| 19 | uint16_t blue4444[] = { pack4444(0xF, 0x0, 0x0, 0xF), pack4444(0xF, 0x0, 0x0, 0xb), |
| 20 | pack4444(0xF, 0x0, 0x0, 0x7), pack4444(0xF, 0x0, 0x0, 0x3) }; |
| 21 | SkPixmap redPixmap(imageInfo, &red4444, imageInfo.minRowBytes()); |
| 22 | if (bitmap.writePixels(redPixmap, 0, 0)) { |
| 23 | canvas->drawBitmap(bitmap, 2, 2); |
| 24 | } |
| 25 | SkPixmap bluePixmap(imageInfo, &blue4444, imageInfo.minRowBytes()); |
| 26 | if (bitmap.writePixels(bluePixmap, 0, 0)) { |
| 27 | canvas->drawBitmap(bitmap, 4, 4); |
| 28 | } |
| 29 | } |
| 30 | } // END FIDDLE |