27 lines
1.0 KiB
C++
27 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=8aa8ca63dff4641dfc6ea8a3c555d59c
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REG_FIDDLE(Image_readPixels, 256, 256, false, 3) {
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void draw(SkCanvas* canvas) {
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canvas->scale(.5f, .5f);
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const int width = 32;
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const int height = 32;
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std::vector<int32_t> dstPixels;
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dstPixels.resize(height * width * 4);
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SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
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for (int y = 0; y < 512; y += height ) {
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for (int x = 0; x < 512; x += width ) {
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if (image->readPixels(nullptr, info, &dstPixels.front(), width * 4, x, y)) {
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SkPixmap dstPixmap(info, &dstPixels.front(), width * 4);
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SkBitmap bitmap;
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bitmap.installPixels(dstPixmap);
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canvas->drawImage(bitmap.asImage(), 0, 0);
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}
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canvas->translate(48, 0);
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}
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canvas->translate(-16 * 48, 48);
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}
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}
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} // END FIDDLE
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