Mercurial > projects > hoofbaby
diff deps/Platinum/Source/Devices/FrameStreamer/PltFrameStream.cpp @ 0:3425707ddbf6
Initial import (hopefully this mercurial stuff works...)
author | fraserofthenight |
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date | Mon, 06 Jul 2009 08:06:28 -0700 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/deps/Platinum/Source/Devices/FrameStreamer/PltFrameStream.cpp Mon Jul 06 08:06:28 2009 -0700 @@ -0,0 +1,125 @@ +/***************************************************************** +| +| Platinum - Frame Stream +| +| Copyright (c) 2004-2008, Plutinosoft, LLC. +| All rights reserved. +| http://www.plutinosoft.com +| +| This program is free software; you can redistribute it and/or +| modify it under the terms of the GNU General Public License +| as published by the Free Software Foundation; either version 2 +| of the License, or (at your option) any later version. +| +| OEMs, ISVs, VARs and other distributors that combine and +| distribute commercially licensed software with Platinum software +| and do not wish to distribute the source code for the commercially +| licensed software under version 2, or (at your option) any later +| version, of the GNU General Public License (the "GPL") must enter +| into a commercial license agreement with Plutinosoft, LLC. +| +| This program is distributed in the hope that it will be useful, +| but WITHOUT ANY WARRANTY; without even the implied warranty of +| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +| GNU General Public License for more details. +| +| You should have received a copy of the GNU General Public License +| along with this program; see the file LICENSE.txt. If not, write to +| the Free Software Foundation, Inc., +| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +| http://www.gnu.org/licenses/gpl-2.0.html +| +****************************************************************/ + +/*---------------------------------------------------------------------- +| includes ++---------------------------------------------------------------------*/ +#include "PltFrameStream.h" + +NPT_SET_LOCAL_LOGGER("platinum.core.framestream") + +/*---------------------------------------------------------------------- +| PLT_InputFrameStream::PLT_InputFrameStream ++---------------------------------------------------------------------*/ +PLT_InputFrameStream::PLT_InputFrameStream(PLT_FrameBuffer& frame_buffer, + const char* boundary) : + m_FrameBuffer(frame_buffer), + m_LastFrameIndex(0), + m_Boundary(boundary), + m_Eos(false) +{ +} + +/*---------------------------------------------------------------------- +| PLT_InputFrameStream::~PLT_InputFrameStream ++---------------------------------------------------------------------*/ +PLT_InputFrameStream::~PLT_InputFrameStream() +{ +} + +/*---------------------------------------------------------------------- +| PLT_InputFrameStream::GetAvailable ++---------------------------------------------------------------------*/ +NPT_Result +PLT_InputFrameStream::GetAvailable(NPT_LargeSize& available) +{ + NPT_CHECK_WARNING(m_Part.GetAvailable(available)); + + if (available == 0 && !m_Eos) { + NPT_CHECK_WARNING(FillBuffer()); + NPT_CHECK_WARNING(m_Part.GetAvailable(available)); + } + + return NPT_SUCCESS; +} + +/*---------------------------------------------------------------------- +| PLT_InputFrameStream::FillBuffer ++---------------------------------------------------------------------*/ +NPT_Result +PLT_InputFrameStream::FillBuffer() +{ + // reset memorystream + m_Part.SetSize(0); + + // fetch next frame + NPT_DataBuffer frame; + NPT_CHECK_WARNING(m_FrameBuffer.GetNextFrame(m_LastFrameIndex, frame)); + + // empty frame means we're done + if (frame.GetDataSize() == 0) { + m_Part.WriteLine("--" + m_Boundary + "--"); + m_Eos = true; + return NPT_SUCCESS; + } + + m_Part.WriteLine("--" + m_Boundary); + m_Part.WriteLine("Content-Type: image/jpeg"); + m_Part.WriteLine("Content-Length: "+NPT_String::FromInteger(frame.GetDataSize())); + m_Part.WriteLine(""); + m_Part.Write(frame.GetData(), frame.GetDataSize()); + m_Part.WriteLine(""); + return NPT_SUCCESS; +} + +/*---------------------------------------------------------------------- +| PLT_InputFrameStream::Read ++---------------------------------------------------------------------*/ +NPT_Result +PLT_InputFrameStream::Read(void* buffer, + NPT_Size bytes_to_read, + NPT_Size* bytes_read /*= 0*/) +{ + + if (bytes_read) *bytes_read = 0; + + if (bytes_to_read == 0) { + return NPT_SUCCESS; + } + + // make sure we have data + NPT_LargeSize available; + NPT_CHECK_WARNING(GetAvailable(available)); + + return m_Part.Read(buffer, bytes_to_read, bytes_read); +}