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// Copyright (c) 2010 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 CHROME_RENDERER_PEPPER_DEVICES_H_
#define CHROME_RENDERER_PEPPER_DEVICES_H_
#include <stdint.h>
#include "base/scoped_ptr.h"
#include "base/shared_memory.h"
#include "base/simple_thread.h"
#include "base/gfx/rect.h"
#include "chrome/common/render_messages.h"
#include "chrome/common/transport_dib.h"
#include "chrome/renderer/audio_message_filter.h"
#include "third_party/npapi/bindings/npapi.h"
#include "third_party/npapi/bindings/npapi_extensions.h"
#include "third_party/skia/include/core/SkBitmap.h"
// Lists all contexts currently open for painting. These are ones requested by
// the plugin but not destroyed by it yet. The source pointer is the raw
// pixels. We use this to look up the corresponding transport DIB when the
// plugin tells us to flush or destroy it.
class Graphics2DDeviceContext {
public:
NPError Initialize(gfx::Rect window_rect,
const NPDeviceContext2DConfig* config,
NPDeviceContext2D* context);
NPError Flush(SkBitmap* commited_bitmap, NPDeviceContext2D* context,
NPDeviceFlushContextCallbackPtr callback, NPP id,
void* user_data);
TransportDIB* transport_dib() { return transport_dib_.get(); }
private:
static int32 next_buffer_id_;
scoped_ptr<TransportDIB> transport_dib_;
// The canvas associated with the transport DIB, containing the mapped
// memory of the image.
scoped_ptr<skia::PlatformCanvas> canvas_;
};
// Each instance of AudioDeviceContext corresponds to one host stream (and one
// audio context). NPDeviceContextAudio contains the id of the context's
// stream in the privatePtr member.
class AudioDeviceContext : public AudioMessageFilter::Delegate,
public base::DelegateSimpleThread::Delegate {
public:
// TODO(neb): if plugin_delegate parameter is indeed unused, remove it
explicit AudioDeviceContext() : stream_id_(0) {
}
virtual ~AudioDeviceContext();
NPError Initialize(AudioMessageFilter* filter,
const NPDeviceContextAudioConfig* config,
NPDeviceContextAudio* context);
base::SharedMemory* shared_memory() { return shared_memory_.get(); }
uint32_t shared_memory_size() { return shared_memory_size_; }
base::SyncSocket* socket() { return socket_.get(); }
private:
// AudioMessageFilter::Delegate implementation
virtual void OnRequestPacket(uint32 bytes_in_buffer,
const base::Time& message_timestamp);
virtual void OnStateChanged(const ViewMsg_AudioStreamState_Params& state);
virtual void OnCreated(base::SharedMemoryHandle handle, uint32 length);
virtual void OnLowLatencyCreated(base::SharedMemoryHandle handle,
base::SyncSocket::Handle socket_handle,
uint32 length);
virtual void OnVolume(double volume);
// End of AudioMessageFilter::Delegate implementation
// DelegateSimpleThread::Delegate implementation
virtual void Run();
// End of DelegateSimpleThread::Delegate implementation
void OnDestroy();
void FireAudioCallback() {
if (context_ && context_->config.callback) {
context_->config.callback(context_);
}
}
NPDeviceContextAudio* context_;
scoped_refptr<AudioMessageFilter> filter_;
int32 stream_id_;
scoped_ptr<base::SharedMemory> shared_memory_;
uint32 shared_memory_size_;
scoped_ptr<base::SyncSocket> socket_;
scoped_ptr<base::DelegateSimpleThread> audio_thread_;
};
#endif // CHROME_RENDERER_PEPPER_DEVICES_H_
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