diff options
| author | apatrick@google.com <apatrick@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-09-03 19:41:16 +0000 |
|---|---|---|
| committer | apatrick@google.com <apatrick@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-09-03 19:41:16 +0000 |
| commit | 1b8f411d2daf5212f678ea1493b6bd5416d0c8ad (patch) | |
| tree | e10297c768c79c2cecd2fb3b49fb5a1ae98a20d1 /o3d/gpu_plugin/command_buffer.h | |
| parent | b6aa587dc3d810cbc73ad9f3f3ec062cb231d869 (diff) | |
| download | chromium_src-1b8f411d2daf5212f678ea1493b6bd5416d0c8ad.zip chromium_src-1b8f411d2daf5212f678ea1493b6bd5416d0c8ad.tar.gz chromium_src-1b8f411d2daf5212f678ea1493b6bd5416d0c8ad.tar.bz2 | |
Exracted CommandBuffer class from GPUPluginObject.
TEST=none
BUG=none
Review URL: http://codereview.chromium.org/200005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25348 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'o3d/gpu_plugin/command_buffer.h')
| -rw-r--r-- | o3d/gpu_plugin/command_buffer.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/o3d/gpu_plugin/command_buffer.h b/o3d/gpu_plugin/command_buffer.h new file mode 100644 index 0000000..454e48a --- /dev/null +++ b/o3d/gpu_plugin/command_buffer.h @@ -0,0 +1,48 @@ +// Copyright (c) 2006-2008 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 O3D_GPU_PLUGIN_COMMAND_BUFFER_H_ +#define O3D_GPU_PLUGIN_COMMAND_BUFFER_H_ + +#include "o3d/gpu_plugin/np_utils/dispatched_np_object.h" + +namespace o3d { +namespace gpu_plugin { + +// An NPObject that implements a shared memory command buffer and a synchronous +// API to manage the put and get pointers. +class CommandBuffer : public DispatchedNPObject { + public: + explicit CommandBuffer(NPP npp); + virtual ~CommandBuffer(); + + // Create a shared memory buffer of the given size. + virtual bool Initialize(int32 size); + + // Gets the shared memory object for the command buffer. + virtual NPObjectPointer<NPObject> GetBuffer(); + + // The client calls this to update its put offset. + virtual void SetPutOffset(int32 offset); + + // The client calls this to get the servers current get offset. + virtual int32 GetGetOffset(); + + protected: + NP_UTILS_BEGIN_DISPATCHER_CHAIN(CommandBuffer, DispatchedNPObject) + NP_UTILS_DISPATCHER(Initialize, bool(int32)) + NP_UTILS_DISPATCHER(SetPutOffset, void(int32)) + NP_UTILS_DISPATCHER(GetGetOffset, int32()) + NP_UTILS_DISPATCHER(GetBuffer, NPObjectPointer<NPObject>()) + NP_UTILS_END_DISPATCHER_CHAIN + + private: + NPObjectPointer<NPObject> buffer_object_; + NPSharedMemory* shared_memory_; +}; + +} // namespace gpu_plugin +} // namespace o3d + +#endif // O3D_GPU_PLUGIN_COMMAND_BUFFER_H_ |