cc/test/test_shared_bitmap_manager.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/test/test_shared_bitmap_manager.h"
   6
   7 #include "base/bind.h"
   8
   9 namespace cc {
  10
  11 void FreeSharedBitmap(SharedBitmap* shared_bitmap) {
  12   delete shared_bitmap->memory();
  13 }
  14
  15 void IgnoreSharedBitmap(SharedBitmap* shared_bitmap) {}
  16
  17 TestSharedBitmapManager::TestSharedBitmapManager() {}
  18
  19 TestSharedBitmapManager::~TestSharedBitmapManager() {}
  20
  21 scoped_ptr<SharedBitmap> TestSharedBitmapManager::AllocateSharedBitmap(
  22     const gfx::Size& size) {
  23   base::AutoLock lock(lock_);
  24   scoped_ptr<base::SharedMemory> memory(new base::SharedMemory);
  25   memory->CreateAndMapAnonymous(size.GetArea() * 4);
  26   SharedBitmapId id = SharedBitmap::GenerateId();
  27   bitmap_map_[id] = memory.get();
  28   return scoped_ptr<SharedBitmap>(
  29       new SharedBitmap(memory.release(), id, base::Bind(&FreeSharedBitmap)));
  30 }
  31
  32 scoped_ptr<SharedBitmap> TestSharedBitmapManager::GetSharedBitmapFromId(
  33     const gfx::Size&,
  34     const SharedBitmapId& id) {
  35   base::AutoLock lock(lock_);
  36   if (bitmap_map_.find(id) == bitmap_map_.end())
  37     return scoped_ptr<SharedBitmap>();
  38   return scoped_ptr<SharedBitmap>(
  39       new SharedBitmap(bitmap_map_[id], id, base::Bind(&IgnoreSharedBitmap)));
  40 }
  41
  42 scoped_ptr<SharedBitmap> TestSharedBitmapManager::GetBitmapForSharedMemory(
  43     base::SharedMemory* memory) {
  44   base::AutoLock lock(lock_);
  45   SharedBitmapId id = SharedBitmap::GenerateId();
  46   bitmap_map_[id] = memory;
  47   return scoped_ptr<SharedBitmap>(
  48       new SharedBitmap(memory, id, base::Bind(&IgnoreSharedBitmap)));
  49 }
  50
  51 }  // namespace cc