25 lines
1.0 KiB
C++
25 lines
1.0 KiB
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=e18549b5ee1039cb61b0bb38c2104fc9
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REG_FIDDLE(Pixmap_readPixels_4, 256, 256, false, 3) {
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void draw(SkCanvas* canvas) {
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SkImageInfo info = SkImageInfo::MakeN32Premul(image->width(), image->height());
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std::vector<int32_t> srcPixels;
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const int rowBytes = image->width() * 4;
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srcPixels.resize(image->height() * rowBytes);
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SkPixmap pixmap(info, (const void*) &srcPixels.front(), rowBytes);
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image->readPixels(nullptr, pixmap, 0, 0);
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for (int index = 0; index < 3; ++index ) {
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std::vector<int32_t> dstPixels;
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dstPixels.resize(image->height() * rowBytes);
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SkPixmap dstmap(info, &dstPixels.front(), rowBytes);
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pixmap.readPixels(dstmap);
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SkBitmap bitmap;
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bitmap.installPixels(dstmap);
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canvas->translate(32, 32);
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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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