28 lines
944 B
C++
28 lines
944 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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#include <climits>
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#include <random>
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REG_FIDDLE(Bitmap_installPixels_2, 256, 256, false, 0) {
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void draw(SkCanvas* canvas) {
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std::default_random_engine rng;
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const auto randUint = [&rng](uint32_t min, uint32_t max) -> uint32_t {
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return std::uniform_int_distribution<uint32_t>(min, max)(rng);
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};
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SkBitmap bitmap;
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const int width = 8;
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const int height = 8;
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uint32_t pixels[width * height];
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for (unsigned x = 0; x < width * height; ++x) {
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pixels[x] = randUint(0, UINT_MAX);
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}
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SkImageInfo info = SkImageInfo::MakeN32(width, height, kUnpremul_SkAlphaType);
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if (bitmap.installPixels(info, pixels, info.minRowBytes())) {
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canvas->scale(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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