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// 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.
#ifndef CC_RESOURCES_TEXTURE_MAILBOX_H_
#define CC_RESOURCES_TEXTURE_MAILBOX_H_
#include <string>
#include "base/callback.h"
#include "base/memory/shared_memory.h"
#include "cc/base/cc_export.h"
#include "gpu/command_buffer/common/mailbox_holder.h"
#include "ui/gfx/size.h"
namespace cc {
// TODO(skaslev, danakj) Rename this class more apropriately since now it
// can hold a shared memory resource as well as a texture mailbox.
class CC_EXPORT TextureMailbox {
public:
TextureMailbox();
explicit TextureMailbox(const gpu::MailboxHolder& mailbox_holder);
TextureMailbox(const gpu::Mailbox& mailbox, uint32 target, uint32 sync_point);
TextureMailbox(base::SharedMemory* shared_memory, const gfx::Size& size);
~TextureMailbox();
bool IsValid() const { return IsTexture() || IsSharedMemory(); }
bool IsTexture() const { return !mailbox_holder_.mailbox.IsZero(); }
bool IsSharedMemory() const { return shared_memory_ != NULL; }
bool Equals(const TextureMailbox&) const;
const gpu::Mailbox& mailbox() const { return mailbox_holder_.mailbox; }
const int8* name() const { return mailbox().name; }
uint32 target() const { return mailbox_holder_.texture_target; }
uint32 sync_point() const { return mailbox_holder_.sync_point; }
void set_sync_point(int32 sync_point) {
mailbox_holder_.sync_point = sync_point;
}
bool allow_overlay() const { return allow_overlay_; }
void set_allow_overlay(bool allow_overlay) { allow_overlay_ = allow_overlay; }
base::SharedMemory* shared_memory() const { return shared_memory_; }
gfx::Size shared_memory_size() const { return shared_memory_size_; }
size_t SharedMemorySizeInBytes() const;
private:
gpu::MailboxHolder mailbox_holder_;
base::SharedMemory* shared_memory_;
gfx::Size shared_memory_size_;
bool allow_overlay_;
};
} // namespace cc
#endif // CC_RESOURCES_TEXTURE_MAILBOX_H_
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