summaryrefslogtreecommitdiff
path: root/libretro/memstream.c
diff options
context:
space:
mode:
authortwinaphex2018-01-17 00:17:17 +0100
committertwinaphex2018-01-17 00:17:17 +0100
commitc21dcf2342c50554f50e2df302287f5efc7ee5c2 (patch)
tree6f5525cb8b8a67f7575c339c2c063ecd603f3696 /libretro/memstream.c
parent077f38e2702c4a704259c9026cf584a423d55982 (diff)
downloadsnes9x2002-c21dcf2342c50554f50e2df302287f5efc7ee5c2.tar.gz
snes9x2002-c21dcf2342c50554f50e2df302287f5efc7ee5c2.tar.bz2
snes9x2002-c21dcf2342c50554f50e2df302287f5efc7ee5c2.zip
Update memory stream
Diffstat (limited to 'libretro/memstream.c')
-rw-r--r--libretro/memstream.c160
1 files changed, 0 insertions, 160 deletions
diff --git a/libretro/memstream.c b/libretro/memstream.c
deleted file mode 100644
index 5d624d7..0000000
--- a/libretro/memstream.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
- *
- * (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and
- * Jerremy Koot (jkoot@snes9x.com)
- *
- * Super FX C emulator code
- * (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and
- * Gary Henderson.
- *
- * (c) Copyright 2014 - 2016 Daniel De Matteis. (UNDER NO CIRCUMSTANCE
- * WILL COMMERCIAL RIGHTS EVER BE APPROPRIATED TO ANY PARTY)
- *
- * Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
- *
- * DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
- * C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
- * C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).
- *
- * DOS port code contains the works of other authors. See headers in
- * individual files.
- *
- * Snes9x homepage: http://www.snes9x.com
- *
- * Permission to use, copy, modify and distribute Snes9x in both binary and
- * source form, for non-commercial purposes, is hereby granted without fee,
- * providing that this license information and copyright notice appear with
- * all copies and any derived work.
- *
- * This software is provided 'as-is', without any express or implied
- * warranty. In no event shall the authors be held liable for any damages
- * arising from the use of this software.
- *
- * Snes9x is freeware for PERSONAL USE only. Commercial users should
- * seek permission of the copyright holders first. Commercial use includes
- * charging money for Snes9x or software derived from Snes9x.
- *
- * The copyright holders request that bug fixes and improvements to the code
- * should be forwarded to them so everyone can benefit from the modifications
- * in future versions.
- *
- * Super NES and Super Nintendo Entertainment System are trademarks of
- * Nintendo Co., Limited and its subsidiary companies.
- */
-
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include "memstream.h"
-
-static uint8_t* g_buffer = NULL;
-static size_t g_size = 0;
-
-static size_t last_file_size = 0;
-
-struct memstream
-{
- uint8_t *m_buf;
- size_t m_size;
- size_t m_ptr;
-};
-
-void memstream_set_buffer(uint8_t *buffer, size_t size)
-{
- g_buffer = buffer;
- g_size = size;
-}
-
-size_t memstream_get_last_size()
-{
- return last_file_size;
-}
-
-static void memstream_init(memstream_t *stream, uint8_t *buffer, size_t max_size)
-{
- stream->m_buf = buffer;
- stream->m_size = max_size;
- stream->m_ptr = 0;
-}
-
-memstream_t *memstream_open()
-{
- memstream_t *stream;
- if (!g_buffer || !g_size)
- return NULL;
-
- stream = (memstream_t*)calloc(1, sizeof(*stream));
- memstream_init(stream, g_buffer, g_size);
-
- g_buffer = NULL;
- g_size = 0;
- return stream;
-}
-
-void memstream_close(memstream_t *stream)
-{
- last_file_size = stream->m_ptr;
- free(stream);
-}
-
-size_t memstream_read(memstream_t *stream, void *data, size_t bytes)
-{
- size_t avail = stream->m_size - stream->m_ptr;
- if (bytes > avail)
- bytes = avail;
-
- memcpy(data, stream->m_buf + stream->m_ptr, bytes);
- stream->m_ptr += bytes;
- return bytes;
-}
-
-size_t memstream_write(memstream_t *stream, const void *data, size_t bytes)
-{
- size_t avail = stream->m_size - stream->m_ptr;
- if (bytes > avail)
- bytes = avail;
-
- memcpy(stream->m_buf + stream->m_ptr, data, bytes);
- stream->m_ptr += bytes;
- return bytes;
-}
-
-int memstream_seek(memstream_t *stream, int offset, int whence)
-{
- size_t ptr;
- if (whence == SEEK_SET)
- ptr = offset;
- else if (whence == SEEK_CUR)
- ptr = stream->m_ptr + offset;
- else if (whence == SEEK_END)
- ptr = stream->m_size + offset;
- else
- return -1;
-
- if (ptr <= stream->m_size)
- {
- stream->m_ptr = ptr;
- return 0;
- }
- else
- return -1;
-}
-
-size_t memstream_pos(memstream_t *stream)
-{
- return stream->m_ptr;
-}
-
-char *memstream_gets(memstream_t *stream, char *buffer, size_t len)
-{
- return NULL;
-}
-
-int memstream_getc(memstream_t *stream)
-{
- if (stream->m_ptr >= stream->m_size)
- return EOF;
- else
- return stream->m_buf[stream->m_ptr++];
-}