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// Copyright 2014 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 "cc/test/test_shared_bitmap_manager.h"
#include "base/memory/shared_memory.h"
namespace cc {
namespace {
class OwnedSharedBitmap : public SharedBitmap {
public:
OwnedSharedBitmap(scoped_ptr<base::SharedMemory> shared_memory,
const SharedBitmapId& id)
: SharedBitmap(static_cast<uint8*>(shared_memory->memory()), id),
shared_memory_(shared_memory.Pass()) {}
~OwnedSharedBitmap() override {}
private:
scoped_ptr<base::SharedMemory> shared_memory_;
};
} // namespace
TestSharedBitmapManager::TestSharedBitmapManager() {}
TestSharedBitmapManager::~TestSharedBitmapManager() {}
scoped_ptr<SharedBitmap> TestSharedBitmapManager::AllocateSharedBitmap(
const gfx::Size& size) {
base::AutoLock lock(lock_);
scoped_ptr<base::SharedMemory> memory(new base::SharedMemory);
memory->CreateAndMapAnonymous(size.GetArea() * 4);
SharedBitmapId id = SharedBitmap::GenerateId();
bitmap_map_[id] = memory.get();
return make_scoped_ptr(new OwnedSharedBitmap(memory.Pass(), id));
}
scoped_ptr<SharedBitmap> TestSharedBitmapManager::GetSharedBitmapFromId(
const gfx::Size&,
const SharedBitmapId& id) {
base::AutoLock lock(lock_);
if (bitmap_map_.find(id) == bitmap_map_.end())
return nullptr;
uint8* pixels = static_cast<uint8*>(bitmap_map_[id]->memory());
return make_scoped_ptr(new SharedBitmap(pixels, id));
}
} // namespace cc
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