26 lines
1.0 KiB
C++
26 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=7822d78f5cacf5c04267cbbc6c6d0b80
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REG_FIDDLE(Pixmap_writable_addrF16, 256, 64, false, 0) {
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void draw(SkCanvas* canvas) {
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SkImageInfo info = SkImageInfo::Make(1, 2, kRGBA_F16_SkColorType, kPremul_SkAlphaType);
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uint16_t storage[2][4];
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SkPixmap pixmap(info, storage[0], sizeof(uint64_t));
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SkIRect topPixelBounds = {0, 0, 1, 1};
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pixmap.erase({ 0.65f, 0.45f, 0.25f, 1 }, &topPixelBounds);
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SkIRect bottomPixelBounds = {0, 1, 1, 2};
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pixmap.erase({ 0.25f, 0.65f, 0.45f, 1 }, &bottomPixelBounds);
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SkBitmap bitmap;
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canvas->scale(20, 20);
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bitmap.installPixels(pixmap);
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canvas->drawImage(bitmap.asImage(), 0, 0);
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uint16_t* pixel2 = pixmap.writable_addrF16(0, 1);
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for (int i = 0; i < 4; ++i) {
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pixel2[i] = storage[0][i];
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}
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bitmap.installPixels(pixmap);
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canvas->drawImage(bitmap.asImage(), 4, 0);
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}
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} // END FIDDLE
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