1 // Copyright 2013 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 #ifndef CC_RESOURCES_TEXTURE_MAILBOX_H_ 6 #define CC_RESOURCES_TEXTURE_MAILBOX_H_ 7 8 #include <string> 9 10 #include "base/callback.h" 11 #include "base/memory/shared_memory.h" 12 #include "cc/base/cc_export.h" 13 #include "gpu/command_buffer/common/mailbox_holder.h" 14 #include "ui/gfx/size.h" 15 16 namespace cc { 17 18 // TODO(skaslev, danakj) Rename this class more apropriately since now it 19 // can hold a shared memory resource as well as a texture mailbox. 20 class CC_EXPORT TextureMailbox { 21 public: 22 TextureMailbox(); 23 explicit TextureMailbox(const gpu::MailboxHolder& mailbox_holder); 24 TextureMailbox(const gpu::Mailbox& mailbox, uint32 target, uint32 sync_point); 25 TextureMailbox(base::SharedMemory* shared_memory, const gfx::Size& size); 26 27 ~TextureMailbox(); 28 29 bool IsValid() const { return IsTexture() || IsSharedMemory(); } 30 bool IsTexture() const { return !mailbox_holder_.mailbox.IsZero(); } 31 bool IsSharedMemory() const { return shared_memory_ != NULL; } 32 33 bool Equals(const TextureMailbox&) const; 34 35 const gpu::Mailbox& mailbox() const { return mailbox_holder_.mailbox; } 36 const int8* name() const { return mailbox().name; } 37 uint32 target() const { return mailbox_holder_.texture_target; } 38 uint32 sync_point() const { return mailbox_holder_.sync_point; } 39 void set_sync_point(int32 sync_point) { 40 mailbox_holder_.sync_point = sync_point; 41 } 42 43 bool allow_overlay() const { return allow_overlay_; } 44 void set_allow_overlay(bool allow_overlay) { allow_overlay_ = allow_overlay; } 45 46 base::SharedMemory* shared_memory() const { return shared_memory_; } 47 gfx::Size shared_memory_size() const { return shared_memory_size_; } 48 size_t SharedMemorySizeInBytes() const; 49 50 private: 51 gpu::MailboxHolder mailbox_holder_; 52 base::SharedMemory* shared_memory_; 53 gfx::Size shared_memory_size_; 54 bool allow_overlay_; 55 }; 56 57 } // namespace cc 58 59 #endif // CC_RESOURCES_TEXTURE_MAILBOX_H_ 60
