| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "SkDiscardableMemory_chrome.h" |
| |
| SkDiscardableMemoryChrome::~SkDiscardableMemoryChrome() {} |
| |
| bool SkDiscardableMemoryChrome::lock() { |
| const base::DiscardableMemoryLockStatus status = discardable_->Lock(); |
| switch (status) { |
| case base::DISCARDABLE_MEMORY_LOCK_STATUS_SUCCESS: |
| return true; |
| case base::DISCARDABLE_MEMORY_LOCK_STATUS_PURGED: |
| discardable_->Unlock(); |
| return false; |
| default: |
| discardable_.reset(); |
| return false; |
| } |
| } |
| |
| void* SkDiscardableMemoryChrome::data() { |
| return discardable_->Memory(); |
| } |
| |
| void SkDiscardableMemoryChrome::unlock() { |
| discardable_->Unlock(); |
| } |
| |
| SkDiscardableMemoryChrome::SkDiscardableMemoryChrome( |
| scoped_ptr<base::DiscardableMemory> memory) |
| : discardable_(memory.Pass()) { |
| } |
| |
| SkDiscardableMemory* SkDiscardableMemory::Create(size_t bytes) { |
| scoped_ptr<base::DiscardableMemory> discardable( |
| base::DiscardableMemory::CreateLockedMemory(bytes)); |
| if (!discardable) |
| return NULL; |
| return new SkDiscardableMemoryChrome(discardable.Pass()); |
| } |