Hal Canary | 7cbf5e3 | 2017-07-12 13:10:23 -0400 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2017 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkKeyedImage.h" |
| 9 | |
| 10 | #include "SkImage_Base.h" |
| 11 | |
| 12 | SkKeyedImage::SkKeyedImage(sk_sp<SkImage> i) : fImage(std::move(i)) { |
| 13 | if (fImage) { |
| 14 | if (const SkBitmap* bm = as_IB(fImage.get())->onPeekBitmap()) { |
| 15 | SkIPoint o = bm->pixelRefOrigin(); |
| 16 | fKey = {fImage->bounds().makeOffset(o.fX, o.fY), bm->getGenerationID()}; |
| 17 | } else { |
| 18 | fKey = {fImage->bounds(), fImage->uniqueID()}; |
| 19 | } |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | SkKeyedImage::SkKeyedImage(const SkBitmap& bm) : fImage(SkImage::MakeFromBitmap(bm)) { |
| 24 | if (fImage) { |
| 25 | fKey = {bm.getSubset(), bm.getGenerationID()}; |
| 26 | } |
| 27 | } |
| 28 | |
| 29 | SkKeyedImage SkKeyedImage::subset(SkIRect subset) const { |
| 30 | SkKeyedImage img; |
| 31 | if (fImage && subset.intersect(fImage->bounds())) { |
| 32 | img.fImage = fImage->makeSubset(subset); |
| 33 | if (img.fImage) { |
| 34 | img.fKey = {subset.makeOffset(fKey.fSubset.x(), fKey.fSubset.y()), fKey.fID}; |
| 35 | } |
| 36 | } |
| 37 | return img; |
| 38 | } |
| 39 | |
| 40 | sk_sp<SkImage> SkKeyedImage::release() { |
| 41 | sk_sp<SkImage> image = std::move(fImage); |
| 42 | SkASSERT(nullptr == fImage); |
| 43 | fKey = {{0, 0, 0, 0}, 0}; |
| 44 | return image; |
| 45 | } |