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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkKeyedImage.h"
#include "SkImage_Base.h"
SkBitmapKey SkBitmapKeyFromImage(const SkImage* image) {
if (!image) {
return {{0, 0, 0, 0}, 0};
}
if (const SkBitmap* bm = as_IB(image)->onPeekBitmap()) {
SkIPoint o = bm->pixelRefOrigin();
return {image->bounds().makeOffset(o.x(), o.y()), bm->getGenerationID()};
}
return {image->bounds(), image->uniqueID()};
}
SkKeyedImage::SkKeyedImage(sk_sp<SkImage> i) : fImage(std::move(i)) {
fKey = SkBitmapKeyFromImage(fImage.get());
}
SkKeyedImage::SkKeyedImage(const SkBitmap& bm) : fImage(SkImage::MakeFromBitmap(bm)) {
if (fImage) {
fKey = {bm.getSubset(), bm.getGenerationID()};
}
}
SkKeyedImage SkKeyedImage::subset(SkIRect subset) const {
SkKeyedImage img;
if (fImage && subset.intersect(fImage->bounds())) {
img.fImage = fImage->makeSubset(subset);
if (img.fImage) {
img.fKey = {subset.makeOffset(fKey.fSubset.x(), fKey.fSubset.y()), fKey.fID};
}
}
return img;
}
sk_sp<SkImage> SkKeyedImage::release() {
sk_sp<SkImage> image = std::move(fImage);
SkASSERT(nullptr == fImage);
fKey = {{0, 0, 0, 0}, 0};
return image;
}
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