75 lines
2.0 KiB
C++
75 lines
2.0 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef M4_FILEIO_FSTREAM_H
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#define M4_FILEIO_FSTREAM_H
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#include "common/file.h"
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#include "m4/fileio/sys_file.h"
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#include "m4/mem/reloc.h"
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#include "m4/m4_types.h"
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namespace M4 {
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class StreamFile {
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private:
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Common::File _file;
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public:
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StreamFile(const Common::Path &filename);
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~StreamFile() {}
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int32 read(Handle bufferHandle, int32 n);
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bool seek(uint32 n);
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bool seek_ahead(int32 n);
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uint32 get_pos();
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};
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struct strmRequest {
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strmRequest *next;
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strmRequest *prev;
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SysFile *srcFile;
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int32 strmSize;
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MemHandle strmHandle;
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uint8 *strmBuff;
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uint8 *endStrmBuff;
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uint8 *strmHead;
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uint8 *strmTail;
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uint8 *strmWrap;
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uint8 *strmLastRead;
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int32 nextReadSize;
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int32 numBlocksToRead;
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int32 *blockSizeArray;
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bool wrapStream;
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};
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bool f_stream_Init();
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void f_stream_Shutdown();
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strmRequest *f_stream_Open(SysFile *srcFile, int32 fileOffset, int32 strmMinBuffSize, int32 strmBuffSize,
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int32 numBlocksToRead, int32 *blockSizeArray, int32 initialRead, bool wrapStream);
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int32 f_stream_Read(strmRequest *myStream, uint8 **dest, int32 numBytes);
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void f_stream_Close(strmRequest *myStream);
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void f_stream_Process(int32 numToProcess);
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} // namespace M4
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#endif
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