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https://github.com/libretro/beetle-pce-fast-libretro.git
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71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
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/* Mednafen - Multi-system Emulator
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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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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// TODO/WIP
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#include "Stream.h"
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class MemoryStream : public Stream
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{
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public:
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MemoryStream();
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MemoryStream(uint64 size_hint);
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MemoryStream(Stream *stream); // Will create a MemoryStream equivalent of the contents of "stream", and then "delete stream".
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// Will only work if stream->tell() == 0, or if "stream" is seekable.
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// stream will be deleted even if this constructor throws.
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MemoryStream(const MemoryStream &zs);
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MemoryStream & operator=(const MemoryStream &zs);
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#if 0
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enum GrowMode
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{
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GROWMODE_POW2 = 0,
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GROWMODE_
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};
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void set_grow_mode(
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#endif
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virtual ~MemoryStream();
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virtual uint64 attributes(void);
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virtual uint8 *map(void);
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virtual void unmap(void);
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virtual uint64 read(void *data, uint64 count, bool error_on_eos = true);
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virtual void write(const void *data, uint64 count);
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virtual void seek(int64 offset, int whence);
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virtual int64 tell(void);
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virtual int64 size(void);
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virtual void close(void);
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virtual int get_line(std::string &str);
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private:
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uint8 *data_buffer;
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uint64 data_buffer_size;
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uint64 data_buffer_alloced;
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int64 position;
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void grow_if_necessary(uint64 new_required_size);
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};
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