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https://github.com/ZDoom/raze-gles.git
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142 lines
5.1 KiB
C
142 lines
5.1 KiB
C
/* xdelta3 - delta compression tools and library
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* Copyright (C) 2011, 2012 Joshua P. MacDonald
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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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#ifndef XDELTA3_INTERNAL_H__
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#define XDELTA3_INTERNAL_H__
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#include "xdelta3.h"
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typedef struct _main_file main_file;
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typedef struct _main_extcomp main_extcomp;
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void main_file_init (main_file *xfile);
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int main_file_close (main_file *xfile);
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void main_file_cleanup (main_file *xfile);
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int main_file_isopen (main_file *xfile);
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int main_file_open (main_file *xfile, const char* name, int mode);
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int main_file_exists (main_file *xfile);
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int xd3_whole_append_window (xd3_stream *stream);
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int xd3_main_cmdline (int argc, char **argv);
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int main_file_read (main_file *ifile,
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uint8_t *buf,
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usize_t size,
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usize_t *nread,
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const char *msg);
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int main_file_write (main_file *ofile, uint8_t *buf,
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usize_t size, const char *msg);
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usize_t xd3_bytes_on_srcblk (xd3_source *src, xoff_t blkno);
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xoff_t xd3_source_eof(const xd3_source *src);
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uint32_t xd3_large_cksum_update (uint32_t cksum,
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const uint8_t *base,
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usize_t look);
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int xd3_encode_init_full (xd3_stream *stream);
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#if PYTHON_MODULE || SWIG_MODULE || NOT_MAIN
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int xd3_main_cmdline (int argc, char **argv);
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#endif
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/* main_file->mode values */
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typedef enum
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{
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XO_READ = 0,
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XO_WRITE = 1
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} main_file_modes;
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struct _main_file
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{
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#if XD3_STDIO
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FILE *file;
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#elif XD3_POSIX
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int file;
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#elif XD3_WIN32
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HANDLE file;
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#endif
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int mode; /* XO_READ and XO_WRITE */
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const char *filename; /* File name or /dev/stdin,
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* /dev/stdout, /dev/stderr. */
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char *filename_copy; /* File name or /dev/stdin,
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* /dev/stdout, /dev/stderr. */
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const char *realname; /* File name or /dev/stdin,
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* /dev/stdout, /dev/stderr. */
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const main_extcomp *compressor; /* External compression struct. */
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int flags; /* RD_FIRST, RD_NONEXTERNAL, ... */
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xoff_t nread; /* for input position */
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xoff_t nwrite; /* for output position */
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uint8_t *snprintf_buf; /* internal snprintf() use */
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int size_known; /* Set by main_set_souze */
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xoff_t source_position; /* for avoiding seek in getblk_func */
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int seek_failed; /* after seek fails once, try FIFO */
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};
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/* According to the internet, Windows vsnprintf() differs from most
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* Unix implementations regarding the terminating 0 when the boundary
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* condition is met. It doesn't matter here, we don't rely on the
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* trailing 0. Besides, both Windows and DJGPP vsnprintf return -1
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* upon truncation, which isn't C99 compliant. To overcome this,
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* recent MinGW runtimes provided their own vsnprintf (notice the
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* absence of the '_' prefix) but they were initially buggy. So,
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* always use the native '_'-prefixed version with Win32. */
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#ifdef _WIN32
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#define vsnprintf_func(str,size,fmt,args) \
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_vsnprintf_s(str,size,size-1,fmt,args)
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#define snprintf_func(str,size,fmt,...) \
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_snprintf_s(str,size,size-1,fmt,__VA_ARGS__)
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#else
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#define vsnprintf_func vsnprintf
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#define snprintf_func snprintf
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#endif
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#define short_sprintf(sb,fmt,...) \
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snprintf_func((sb).buf,sizeof((sb).buf),fmt,__VA_ARGS__)
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/* Type used for short snprintf calls. */
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typedef struct {
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char buf[48];
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} shortbuf;
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/* Prior to SVN 303 this function was only defined in DJGPP and WIN32
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* environments and other platforms would use the builtin snprintf()
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* with an arrangement of macros below. In OS X 10.6, Apply made
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* snprintf() a macro, which defeated those macros (since snprintf
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* would be evaluated before its argument macros were expanded,
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* therefore always define xsnprintf_func. */
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#undef PRINTF_ATTRIBUTE
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#ifdef __GNUC__
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/* Let's just assume no one uses gcc 2.x! */
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#define PRINTF_ATTRIBUTE(x,y) __attribute__ ((__format__ (__printf__, x, y)))
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#else
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#define PRINTF_ATTRIBUTE(x,y)
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#endif
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/* Underlying xprintf() */
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int xsnprintf_func (char *str, int n, const char *fmt, ...)
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PRINTF_ATTRIBUTE(3,4);
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/* XPR(NT "", ...) (used by main) prefixes an "xdelta3: " to the output. */
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void xprintf(const char *fmt, ...) PRINTF_ATTRIBUTE(1,2);
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#define XPR xprintf
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#define NT "xdelta3: "
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#define NTR ""
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#ifndef UINT32_MAX
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#define UINT32_MAX 4294967295U
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#endif
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#ifndef UINT64_MAX
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#define UINT64_MAX 18446744073709551615ULL
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#endif
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#endif // XDELTA3_INTERNAL_H__
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