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(Bitmap_swap, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 auto debugster = [](const char* prefix, const SkBitmap& b) -> void {
7 const char* alphas[] = {"Unknown", "Opaque", "Premul", "Unpremul"};
8 const char* colors[] = {"Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888", "RGB_888x",
9 "BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
10 "RGBA_F16"};
11 SkDebugf("%s width:%d height:%d colorType:k%s_SkColorType alphaType:k%s_SkAlphaType\n",
12 prefix, b.width(), b.height(), colors[b.colorType()], alphas[b.alphaType()]);
13 };
14 SkBitmap one, two;
15 if (!one.tryAllocPixels(
16 SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kOpaque_SkAlphaType))) {
17 return;
18 }
19 if (!two.tryAllocPixels(
20 SkImageInfo::Make(2, 2, kBGRA_8888_SkColorType, kPremul_SkAlphaType))) {
21 return;
22 }
23 for (int index = 0; index < 2; ++index) {
24 debugster("one", one);
25 debugster("two", two);
26 one.swap(two);
27 }
28 }
29 } // END FIDDLE
30