xref: /aosp_15_r20/external/skia/docs/examples/Image_isOpaque.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
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(Image_isOpaque, 256, 256, true, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     auto check_isopaque = [](const SkImageInfo& imageInfo) -> void {
7*c8dee2aaSAndroid Build Coastguard Worker         auto surface(SkSurfaces::Raster(imageInfo));
8*c8dee2aaSAndroid Build Coastguard Worker         auto image(surface->makeImageSnapshot());
9*c8dee2aaSAndroid Build Coastguard Worker         SkDebugf("isOpaque = %s\n", image->isOpaque() ? "true" : "false");
10*c8dee2aaSAndroid Build Coastguard Worker     };
11*c8dee2aaSAndroid Build Coastguard Worker     check_isopaque(SkImageInfo::MakeN32Premul(5, 5));
12*c8dee2aaSAndroid Build Coastguard Worker     check_isopaque(SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType));
13*c8dee2aaSAndroid Build Coastguard Worker }
14*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
15