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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.
#include "remoting/base/protocol_util.h"
#include "base/basictypes.h"
#include "base/hash_tables.h"
#include "talk/base/byteorder.h"
namespace remoting {
scoped_refptr<media::DataBuffer> SerializeAndFrameMessage(
const google::protobuf::MessageLite& msg) {
// Create a buffer with 4 extra bytes. This is used as prefix to write an
// int32 of the serialized message size for framing.
const int kExtraBytes = sizeof(int32);
int size = msg.ByteSize() + kExtraBytes;
scoped_refptr<media::DataBuffer> buffer = new media::DataBuffer(size);
talk_base::SetBE32(buffer->GetWritableData(), msg.GetCachedSize());
msg.SerializeWithCachedSizesToArray(buffer->GetWritableData() + kExtraBytes);
buffer->SetDataSize(size);
return buffer;
}
int GetBytesPerPixel(PixelFormat format) {
// Note: The order is important here for performance. This is sorted from the
// most common to the less common (PixelFormatAscii is mostly used
// just for testing).
switch (format) {
case PixelFormatRgb24: return 3;
case PixelFormatRgb565: return 2;
case PixelFormatRgb32: return 4;
case PixelFormatAscii: return 1;
default:
NOTREACHED() << "Pixel format not supported";
return 0;
}
}
} // namespace remoting
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