| |
| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkAutoPixmapStorage.h" |
| #include "SkData.h" |
| |
| SkAutoPixmapStorage::SkAutoPixmapStorage() : fStorage(nullptr) {} |
| |
| SkAutoPixmapStorage::~SkAutoPixmapStorage() { |
| this->freeStorage(); |
| } |
| |
| size_t SkAutoPixmapStorage::AllocSize(const SkImageInfo& info, size_t* rowBytes) { |
| size_t rb = info.minRowBytes(); |
| if (rowBytes) { |
| *rowBytes = rb; |
| } |
| return info.getSafeSize(rb); |
| } |
| |
| bool SkAutoPixmapStorage::tryAlloc(const SkImageInfo& info) { |
| this->freeStorage(); |
| |
| size_t rb; |
| size_t size = AllocSize(info, &rb); |
| if (0 == size) { |
| return false; |
| } |
| void* pixels = sk_malloc_flags(size, 0); |
| if (nullptr == pixels) { |
| return false; |
| } |
| this->reset(info, pixels, rb); |
| fStorage = pixels; |
| return true; |
| } |
| |
| void SkAutoPixmapStorage::alloc(const SkImageInfo& info) { |
| if (!this->tryAlloc(info)) { |
| sk_throw(); |
| } |
| } |
| |
| const SkData* SkAutoPixmapStorage::detachPixelsAsData() { |
| if (!fStorage) { |
| return nullptr; |
| } |
| |
| auto data = SkData::MakeFromMalloc(fStorage, this->getSafeSize()); |
| fStorage = nullptr; |
| this->INHERITED::reset(); |
| |
| return data.release(); |
| } |
| |
| void SkAutoPixmapStorage::release() { |
| fStorage = nullptr; |
| this->INHERITED::reset(); |
| } |