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.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 std::string& mailbox_name); 24 explicit TextureMailbox(const gpu::Mailbox& mailbox_name); 25 TextureMailbox(const gpu::Mailbox& mailbox_name, 26 unsigned sync_point); 27 TextureMailbox(const gpu::Mailbox& mailbox_name, 28 unsigned texture_target, 29 unsigned sync_point); 30 TextureMailbox(base::SharedMemory* shared_memory, 31 gfx::Size size); 32 33 ~TextureMailbox(); 34 35 bool IsValid() const { return IsTexture() || IsSharedMemory(); } 36 bool IsTexture() const { return !name_.IsZero(); } 37 bool IsSharedMemory() const { return shared_memory_ != NULL; } 38 39 bool Equals(const TextureMailbox&) const; 40 bool ContainsMailbox(const gpu::Mailbox&) const; 41 bool ContainsHandle(base::SharedMemoryHandle handle) const; 42 43 const int8* data() const { return name_.name; } 44 const gpu::Mailbox& name() const { return name_; } 45 void ResetSyncPoint() { sync_point_ = 0; } 46 unsigned target() const { return target_; } 47 unsigned sync_point() const { return sync_point_; } 48 49 base::SharedMemory* shared_memory() const { return shared_memory_; } 50 gfx::Size shared_memory_size() const { return shared_memory_size_; } 51 size_t shared_memory_size_in_bytes() const; 52 53 // TODO(danakj): ReleaseCallback should be separate from this class, and stop 54 // storing a TextureMailbox in ResourceProvider. Then we can remove this. 55 void SetName(const gpu::Mailbox& name); 56 57 private: 58 gpu::Mailbox name_; 59 unsigned target_; 60 unsigned sync_point_; 61 base::SharedMemory* shared_memory_; 62 gfx::Size shared_memory_size_; 63 }; 64 65 } // namespace cc 66 67 #endif // CC_RESOURCES_TEXTURE_MAILBOX_H_ 68
