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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 <stddef.h>
#include <stdint.h>
#include <string>
#include "base/memory/shared_memory.h"
#include "cc/base/cc_export.h"
#include "gpu/command_buffer/common/mailbox_holder.h"
#include "ui/gfx/geometry/size.h"
namespace cc {
class SharedBitmap;
// 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,
const gpu::SyncToken& sync_token,
uint32_t target);
TextureMailbox(const gpu::Mailbox& mailbox,
const gpu::SyncToken& sync_token,
uint32_t target,
const gfx::Size& size_in_pixels,
bool is_overlay_candidate);
TextureMailbox(SharedBitmap* shared_bitmap, const gfx::Size& size_in_pixels);
~TextureMailbox();
bool IsValid() const { return IsTexture() || IsSharedMemory(); }
bool IsTexture() const { return !mailbox_holder_.mailbox.IsZero(); }
bool IsSharedMemory() const { return shared_bitmap_ != NULL; }
bool Equals(const TextureMailbox&) const;
const gpu::Mailbox& mailbox() const { return mailbox_holder_.mailbox; }
const int8_t* name() const { return mailbox().name; }
uint32_t target() const { return mailbox_holder_.texture_target; }
const gpu::SyncToken& sync_token() const {
return mailbox_holder_.sync_token;
}
void set_sync_token(const gpu::SyncToken& sync_token) {
mailbox_holder_.sync_token = sync_token;
}
bool is_overlay_candidate() const { return is_overlay_candidate_; }
bool nearest_neighbor() const { return nearest_neighbor_; }
void set_nearest_neighbor(bool nearest_neighbor) {
nearest_neighbor_ = nearest_neighbor;
}
// This is valid if allow_overlau() or IsSharedMemory() is true.
gfx::Size size_in_pixels() const { return size_in_pixels_; }
SharedBitmap* shared_bitmap() const { return shared_bitmap_; }
size_t SharedMemorySizeInBytes() const;
private:
gpu::MailboxHolder mailbox_holder_;
SharedBitmap* shared_bitmap_;
gfx::Size size_in_pixels_;
bool is_overlay_candidate_;
bool nearest_neighbor_;
};
} // namespace cc
#endif // CC_RESOURCES_TEXTURE_MAILBOX_H_