1 files changed, 77 insertions, 0 deletions
diff --git a/ppapi/shared_impl/video_decoder_impl.h b/ppapi/shared_impl/video_decoder_impl.h
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+++ b/ppapi/shared_impl/video_decoder_impl.h
@@ -0,0 +1,77 @@
+// Copyright (c) 2011 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 PPAPI_SHARED_IMPL_VIDEO_DECODER_IMPL_H_
+#define PPAPI_SHARED_IMPL_VIDEO_DECODER_IMPL_H_
+
+#include <map>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "ppapi/c/dev/ppb_video_decoder_dev.h"
+#include "ppapi/shared_impl/resource.h"
+#include "ppapi/thunk/ppb_video_decoder_api.h"
+
+namespace gpu {
+namespace gles2 {
+class GLES2Implementation;
+}  // namespace gles2
+}  // namespace gpu
+
+namespace ppapi {
+
+// Implements the logic to set and run callbacks for various video decoder
+// events. Both the proxy and the renderer implementation share this code.
+class PPAPI_SHARED_EXPORT VideoDecoderImpl
+    : NON_EXPORTED_BASE(public thunk::PPB_VideoDecoder_API) {
+ public:
+  VideoDecoderImpl();
+  virtual ~VideoDecoderImpl();
+
+  // PPB_VideoDecoder_API implementation.
+  virtual void Destroy() OVERRIDE;
+
+ protected:
+  bool SetFlushCallback(PP_CompletionCallback callback);
+  bool SetResetCallback(PP_CompletionCallback callback);
+  bool SetBitstreamBufferCallback(
+      int32 bitstream_buffer_id, PP_CompletionCallback callback);
+
+  void RunFlushCallback(int32 result);
+  void RunResetCallback(int32 result);
+  void RunBitstreamBufferCallback(int32 bitstream_buffer_id, int32 result);
+
+  // Tell command buffer to process all commands it has received so far.
+  void FlushCommandBuffer();
+
+  // Initialize the underlying decoder.
+  void InitCommon(PP_Resource graphics_context,
+                  gpu::gles2::GLES2Implementation* gles2_impl);
+
+ private:
+  // Key: bitstream_buffer_id, value: callback to run when bitstream decode is
+  // done.
+  typedef std::map<int32, PP_CompletionCallback> CallbackById;
+
+  PP_CompletionCallback flush_callback_;
+  PP_CompletionCallback reset_callback_;
+  CallbackById bitstream_buffer_callbacks_;
+
+  // The resource ID of the underlying Graphics3D object being used.  Used only
+  // for reference counting to keep it alive for the lifetime of |*this|.
+  PP_Resource graphics_context_;
+
+  // Reference to the GLES2Implementation owned by |graphics_context_|.
+  // Graphics3D is guaranteed to be alive for the lifetime of this class.
+  // In the out-of-process case, Graphics3D's gles2_impl() exists in the plugin
+  // process only, so gles2_impl_ is NULL in that case.
+  gpu::gles2::GLES2Implementation* gles2_impl_;
+
+  DISALLOW_COPY_AND_ASSIGN(VideoDecoderImpl);
+};
+
+}  // namespace ppapi
+
+#endif  // PPAPI_SHARED_IMPL_VIDEO_DECODER_IMPL_H_