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=6ef37d5be03d0bfaec992dbb5a94c66f
5REG_FIDDLE(Pixmap_computeIsOpaque, 256, 256, true, 0) {
6void draw(SkCanvas* canvas) {
7    std::vector<uint32_t> pixels;
8    const int height = 2;
9    const int width = 2;
10    pixels.resize(height * width * 4);
11    SkPixmap pixmap(SkImageInfo::Make(width, height, kN32_SkColorType,
12            kPremul_SkAlphaType), (const void*) &pixels.front(), width * 4);
13    for (int index = 0; index < 2; ++index) {
14        pixmap.erase(0x00000000);
15        SkDebugf("computeIsOpaque: %s\n", pixmap.computeIsOpaque() ? "true" : "false");
16        pixmap.erase(0xFFFFFFFF);
17        SkDebugf("computeIsOpaque: %s\n", pixmap.computeIsOpaque() ? "true" : "false");
18        pixmap.reset(pixmap.info().makeAlphaType(kOpaque_SkAlphaType),
19                     (const void*) &pixels.front(), width * 4);
20    }
21}
22}  // END FIDDLE
23