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 "tools/fiddle/examples.h"
4 // HASH=74ef460f89ed5904334d0f8883e781c4
5 REG_FIDDLE(Pixmap_writable_addr, 256, 256, true, 0) {
draw(SkCanvas * canvas)6 void draw(SkCanvas* canvas) {
7 const int w = 4;
8 const int h = 4;
9 SkPMColor storage[w * h * 4];
10 SkPixmap pixmap(SkImageInfo::MakeN32(w, h, kPremul_SkAlphaType), storage, w * 4);
11 SkDebugf("pixmap.writable_addr() %c= (void *)storage\n",
12 pixmap.writable_addr() == (void *)storage ? '=' : '!');
13 pixmap.erase(0x00000000);
14 *(SkPMColor*)pixmap.writable_addr() = 0xFFFFFFFF;
15 SkDebugf("pixmap.getColor(0, 1) %c= 0x00000000\n",
16 pixmap.getColor(0, 1) == 0x00000000 ? '=' : '!');
17 SkDebugf("pixmap.getColor(0, 0) %c= 0xFFFFFFFF\n",
18 pixmap.getColor(0, 0) == 0xFFFFFFFF ? '=' : '!');
19 }
20 } // END FIDDLE
21