20 lines
822 B
C++
20 lines
822 B
C++
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "tools/fiddle/examples.h"
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// HASH=febdbfac6cf4cde69837643be2e1f6dd
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REG_FIDDLE(Pixmap_extractSubset, 256, 128, false, 3) {
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void draw(SkCanvas* canvas) {
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std::vector<int32_t> pixels;
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pixels.resize(image->height() * image->width() * 4);
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SkPixmap pixmap(SkImageInfo::Make(image->width(), image->height(), kN32_SkColorType,
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image->alphaType()), (const void*) &pixels.front(), image->width() * 4);
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image->readPixels(nullptr, pixmap, 0, 0);
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SkPixmap inset;
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if (pixmap.extractSubset(&inset, {128, 128, 512, 512})) {
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SkBitmap bitmap;
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bitmap.installPixels(inset);
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canvas->drawImage(bitmap.asImage(), 0, 0);
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}
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}
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} // END FIDDLE
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