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// Copyright (c) 2012 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_PPB_VIDEO_DECODER_SHARED_H_
#define PPAPI_SHARED_IMPL_PPB_VIDEO_DECODER_SHARED_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/shared_impl/tracked_callback.h"
#include "ppapi/thunk/ppb_video_decoder_dev_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 PPB_VideoDecoder_Shared
: public Resource,
NON_EXPORTED_BASE(public thunk::PPB_VideoDecoder_Dev_API) {
public:
explicit PPB_VideoDecoder_Shared(PP_Instance instance);
explicit PPB_VideoDecoder_Shared(const HostResource& host_resource);
virtual ~PPB_VideoDecoder_Shared();
// Resource overrides.
virtual thunk::PPB_VideoDecoder_Dev_API* AsPPB_VideoDecoder_Dev_API()
override;
// PPB_VideoDecoder_Dev_API implementation.
virtual void Destroy() override;
protected:
bool SetFlushCallback(scoped_refptr<TrackedCallback> callback);
bool SetResetCallback(scoped_refptr<TrackedCallback> callback);
bool SetBitstreamBufferCallback(int32 bitstream_buffer_id,
scoped_refptr<TrackedCallback> 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, scoped_refptr<TrackedCallback> > CallbackById;
scoped_refptr<TrackedCallback> flush_callback_;
scoped_refptr<TrackedCallback> 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(PPB_VideoDecoder_Shared);
};
} // namespace ppapi
#endif // PPAPI_SHARED_IMPL_PPB_VIDEO_DECODER_SHARED_H_
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