xref: /aosp_15_r20/external/skia/docs/examples/Region_readFromMemory.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(Region_readFromMemory, 256, 100, false, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     SkRegion region({20, 20, 80, 80});
7*c8dee2aaSAndroid Build Coastguard Worker     size_t size = region.writeToMemory(nullptr);
8*c8dee2aaSAndroid Build Coastguard Worker     sk_sp<SkData> data = SkData::MakeUninitialized(size);
9*c8dee2aaSAndroid Build Coastguard Worker     region.writeToMemory(data->writable_data());
10*c8dee2aaSAndroid Build Coastguard Worker     SkRegion copy;
11*c8dee2aaSAndroid Build Coastguard Worker     copy.readFromMemory(data->data(), data->size());
12*c8dee2aaSAndroid Build Coastguard Worker     canvas->drawRegion(copy, SkPaint());
13*c8dee2aaSAndroid Build Coastguard Worker }
14*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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