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92 lines
2.6 KiB
C++
92 lines
2.6 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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*
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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, 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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*/
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#ifndef PSPSTREAM_H_
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#define PSPSTREAM_H_
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#include <pspkerneltypes.h>
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#include "backends/platform/psp/powerman.h"
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//#include "common/list.h"
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#include "common/noncopyable.h"
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#include "common/stream.h"
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#include "common/str.h"
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/**
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* Class to handle special suspend/resume needs of PSP IO Streams
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*/
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class PspIoStream : public Common::SeekableReadStream, public Common::WriteStream, public Common::NonCopyable, public Suspendable {
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protected:
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SceUID _handle; // file handle
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Common::String _path;
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int _fileSize;
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bool _writeMode; // for resuming in the right mode
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int _physicalPos; // physical position in file
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int _pos; // position. Sometimes virtual
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bool _eos; // EOS flag
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enum {
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SuspendError = 2,
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ResumeError = 3
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};
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// debug stuff
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mutable int _error; // file error state
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int _errorSuspend; // for debugging
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mutable int _errorSource;
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int _errorPos;
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SceUID _errorHandle;
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int _suspendCount;
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bool physicalSeekFromCur(int32 offset);
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public:
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/**
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* Given a path, invoke fopen on that path and wrap the result in a
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* PspIoStream instance.
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*/
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static PspIoStream *makeFromPath(const Common::String &path, bool writeMode);
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PspIoStream(const Common::String &path, bool writeMode);
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virtual ~PspIoStream();
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SceUID open(); // open the file pointed to by the file path
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bool err() const;
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void clearErr();
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bool eos() const;
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virtual uint32 write(const void *dataPtr, uint32 dataSize);
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virtual bool flush();
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virtual int32 pos() const;
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virtual int32 size() const;
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virtual bool seek(int32 offs, int whence = SEEK_SET);
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virtual uint32 read(void *dataPtr, uint32 dataSize);
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// for suspending
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int suspend(); /* Suspendable interface (power manager) */
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int resume(); /* " " */
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};
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#endif /* PSPSTREAM_H_ */
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