1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Pixmap_computeIsOpaque, 256, 256, true, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker std::vector<uint32_t> pixels;
7*c8dee2aaSAndroid Build Coastguard Worker const int height = 2;
8*c8dee2aaSAndroid Build Coastguard Worker const int width = 2;
9*c8dee2aaSAndroid Build Coastguard Worker pixels.resize(height * width * 4);
10*c8dee2aaSAndroid Build Coastguard Worker SkPixmap pixmap(SkImageInfo::Make(width, height, kN32_SkColorType,
11*c8dee2aaSAndroid Build Coastguard Worker kPremul_SkAlphaType), (const void*) &pixels.front(), width * 4);
12*c8dee2aaSAndroid Build Coastguard Worker for (int index = 0; index < 2; ++index) {
13*c8dee2aaSAndroid Build Coastguard Worker pixmap.erase(0x00000000);
14*c8dee2aaSAndroid Build Coastguard Worker SkDebugf("computeIsOpaque: %s\n", pixmap.computeIsOpaque() ? "true" : "false");
15*c8dee2aaSAndroid Build Coastguard Worker pixmap.erase(0xFFFFFFFF);
16*c8dee2aaSAndroid Build Coastguard Worker SkDebugf("computeIsOpaque: %s\n", pixmap.computeIsOpaque() ? "true" : "false");
17*c8dee2aaSAndroid Build Coastguard Worker pixmap.reset(pixmap.info().makeAlphaType(kOpaque_SkAlphaType),
18*c8dee2aaSAndroid Build Coastguard Worker (const void*) &pixels.front(), width * 4);
19*c8dee2aaSAndroid Build Coastguard Worker }
20*c8dee2aaSAndroid Build Coastguard Worker }
21*c8dee2aaSAndroid Build Coastguard Worker } // END FIDDLE
22