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