| // 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=809284db136748208b3efc31cd89de29 |
| REG_FIDDLE(Pixmap_writable_addr8, 256, 64, false, 0) { |
| void draw(SkCanvas* canvas) { |
| uint8_t storage[][5] = {{ 0, 0, 64, 0, 0}, |
| { 0, 128, 255, 128, 0}, |
| {64, 255, 255, 255, 64}, |
| { 0, 128, 255, 128, 0}, |
| { 0, 0, 64, 0, 0}}; |
| SkImageInfo imageInfo = SkImageInfo::Make(5, 5, kGray_8_SkColorType, kPremul_SkAlphaType); |
| SkPixmap pixmap(imageInfo, storage[0], 5); |
| SkBitmap bitmap; |
| bitmap.installPixels(pixmap); |
| canvas->scale(10, 10); |
| canvas->drawImage(bitmap.asImage(), 0, 0); |
| *pixmap.writable_addr8(2, 2) = 0; |
| // bitmap.installPixels(pixmap); // uncomment to fix on GPU |
| canvas->drawImage(bitmap.asImage(), 10, 0); |
| } |
| } // END FIDDLE |
