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https://github.com/libretro/scummvm.git
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106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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/*
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* This code is based on Broken Sword 2.5 engine
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*
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* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
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*
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* Licensed under GNU GPL v2
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*
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*/
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// -----------------------------------------------------------------------------
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// Logging
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// -----------------------------------------------------------------------------
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#define BS_LOG_PREFIX "MOVIEFILE"
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// -----------------------------------------------------------------------------
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// Includes
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// -----------------------------------------------------------------------------
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#include "sword25/kernel/kernel.h"
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#include "sword25/package/packagemanager.h"
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#include "sword25/fmv/oggtheora/oggstate.h"
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#include "sword25/fmv/oggtheora/moviefile.h"
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// -----------------------------------------------------------------------------
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BS_MovieFile::BS_MovieFile(const std::string & Filename, unsigned int ReadBlockSize, bool & Success) :
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m_Data(0), m_Size(0), m_ReadPos(0), m_ReadBlockSize(ReadBlockSize)
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{
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m_Data = reinterpret_cast<char *>(BS_Kernel::GetInstance()->GetPackage()->GetFile(Filename, &m_Size));
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if (!m_Data)
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{
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BS_LOG_ERRORLN("Could not load movie file \"%s\".", Filename.c_str());
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Success = false;
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}
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else
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Success = true;
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}
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// -----------------------------------------------------------------------------
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BS_MovieFile::~BS_MovieFile()
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{
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if (m_Data) delete [] m_Data;
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}
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// -----------------------------------------------------------------------------
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int BS_MovieFile::BufferData(BS_OggState & OggState)
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{
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if (!m_Data || !m_Size || m_ReadPos >= m_Size)
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{
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BS_LOG_ERRORLN("Tried to read past the movie buffer's end.");
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return 0;
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}
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// just grab some more compressed bitstream and sync it for page extraction
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char * Buffer = OggState.SyncBuffer(m_ReadBlockSize);
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if (!Buffer)
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{
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BS_LOG_ERRORLN("ogg_sync_buffer() failed.");
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return 0;
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}
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// Feststellen wie viele Bytes kopiert werden sollen, maximal READ_BLOCK_SIZE, weniger falls das Ende der Daten erreicht ist.
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int Bytes = (m_Size - m_ReadPos) > m_ReadBlockSize ? m_ReadBlockSize : m_Size - m_ReadPos;
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memcpy(Buffer, &m_Data[m_ReadPos], Bytes);
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m_ReadPos += Bytes;
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OggState.SyncWrote(Bytes);
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return Bytes;
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}
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// -----------------------------------------------------------------------------
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bool BS_MovieFile::IsEOF() const
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{
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return m_ReadPos >= m_Size;
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}
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