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0f3e79564d
Sent: Sunday, September 21, 2008 10:45 AM To: submit@mamedev.org Cc: atariace@hotmail.com Subject: [patch] More static qualifiers Hi mamedev, Another static function update from yours truly, almost entirely affecting code added in the last few months to MAME. The fixes are the usual lot, changing enum definitions so they aren't declared, decorating dead code/declarations with #if...#endif, and of course, adding static where appropriate. In addition, I fixed a bunch of UNUSED_FUNCTON symbols to be spelled correctly (I didn't introduce this). ~aa
398 lines
9.1 KiB
C
398 lines
9.1 KiB
C
/***************************************************************************
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CDRDAO TOC parser for CHD compression frontend
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Copyright Nicola Salmoria and the MAME Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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***************************************************************************/
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#include "osdcore.h"
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#include "chd.h"
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#include "chdcd.h"
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#include <ctype.h>
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/***************************************************************************
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CONSTANTS & DEFINES
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***************************************************************************/
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#define TOKENIZE i = tokenize( linebuffer, i, sizeof(linebuffer), token, sizeof(token) );
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/***************************************************************************
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GLOBAL VARIABLES
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***************************************************************************/
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static char linebuffer[512];
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/***************************************************************************
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IMPLEMENTATION
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***************************************************************************/
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/*-------------------------------------------------
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get_file_size - get the size of a file
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-------------------------------------------------*/
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static UINT64 get_file_size(const char *filename)
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{
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osd_file *file;
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UINT64 filesize = 0;
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file_error filerr;
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filerr = osd_open(filename, OPEN_FLAG_READ, &file, &filesize);
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if (filerr == FILERR_NONE)
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osd_close(file);
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return filesize;
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}
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/*-------------------------------------------------
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tokenize - get a token from the line buffer
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-------------------------------------------------*/
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static int tokenize( const char *linebuffer, int i, int linebuffersize, char *token, int tokensize )
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{
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int j = 0;
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int singlequote = 0;
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int doublequote = 0;
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while ((i < linebuffersize) && isspace(linebuffer[i]))
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{
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i++;
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}
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while ((i < linebuffersize) && (j < tokensize))
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{
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if (!singlequote && linebuffer[i] == '"' )
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{
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doublequote = !doublequote;
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}
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else if (!doublequote && linebuffer[i] == '\'')
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{
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singlequote = !singlequote;
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}
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else if (!singlequote && !doublequote && isspace(linebuffer[i]))
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{
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break;
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}
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else
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{
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token[j] = linebuffer[i];
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j++;
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}
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i++;
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}
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token[j] = '\0';
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return i;
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}
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/*-------------------------------------------------
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msf_to_frames - convert m:s:f into a number of frames
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-------------------------------------------------*/
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static int msf_to_frames( char *token )
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{
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int m = 0;
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int s = 0;
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int f = 0;
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if( sscanf( token, "%d:%d:%d", &m, &s, &f ) == 1 )
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{
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f = m;
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}
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else
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{
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/* convert to just frames */
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s += (m * 60);
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f += (s * 75);
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}
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return f;
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}
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static chd_error chdcd_parse_gdi(const char *tocfname, cdrom_toc *outtoc, chdcd_track_input_info *outinfo)
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{
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FILE *infile;
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int i, numtracks;
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int chdpos=0;
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infile = fopen(tocfname, "rt");
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if (infile == (FILE *)NULL)
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{
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return CHDERR_FILE_NOT_FOUND;
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}
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/* clear structures */
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memset(outtoc, 0, sizeof(cdrom_toc));
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memset(outinfo, 0, sizeof(chdcd_track_input_info));
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fgets(linebuffer,511,infile);
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numtracks=atoi(linebuffer);
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for(i=0;i<numtracks;++i)
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{
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char *tok;
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int trknum;
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int trksize,trktype;
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int sz;
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int hunks;
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fgets(linebuffer,511,infile);
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tok=strtok(linebuffer," ");
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trknum=atoi(tok)-1;
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outinfo->swap[trknum]=0;
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outinfo->offset[trknum]=0;
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//outtoc->tracks[trknum].trktype = CD_TRACK_MODE1;
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outtoc->tracks[trknum].datasize = 0;
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outtoc->tracks[trknum].subtype = CD_SUB_NONE;
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outtoc->tracks[trknum].subsize = 0;
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tok=strtok(NULL," ");
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outtoc->tracks[trknum].physframeofs=atoi(tok);
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tok=strtok(NULL," ");
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trktype=atoi(tok);
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tok=strtok(NULL," ");
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trksize=atoi(tok);
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if(trktype==4 && trksize==2352)
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{
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outtoc->tracks[trknum].trktype=CD_TRACK_MODE1_RAW;
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outtoc->tracks[trknum].datasize=2352;
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}
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if(trktype==4 && trksize==2048)
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{
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outtoc->tracks[trknum].trktype=CD_TRACK_MODE1;
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outtoc->tracks[trknum].datasize=2048;
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}
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if(trktype==0)
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{
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//assert(trksize==2352);
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outtoc->tracks[trknum].trktype=CD_TRACK_AUDIO;
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outtoc->tracks[trknum].datasize=2352;
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}
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tok=strtok(NULL," ");
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strcpy(&(outinfo->fname[trknum][0]),tok);
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sz=get_file_size(outinfo->fname[trknum]);
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outtoc->tracks[trknum].frames=sz/trksize;
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outtoc->tracks[trknum].extraframes=0;
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if(trknum!=0)
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{
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int dif=outtoc->tracks[trknum].physframeofs-(outtoc->tracks[trknum-1].frames+outtoc->tracks[trknum-1].physframeofs);
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outtoc->tracks[trknum-1].frames+=dif;
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}
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/*
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if(trknum!=0)
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{
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outtoc->tracks[trknum-1].extraframes=outtoc->tracks[trknum].physframeofs-(outtoc->tracks[trknum-1].frames+outtoc->tracks[trknum-1].physframeofs);
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}
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*/
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hunks = (outtoc->tracks[trknum].frames+CD_FRAMES_PER_HUNK - 1) / CD_FRAMES_PER_HUNK;
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outtoc->tracks[trknum].extraframes = hunks * CD_FRAMES_PER_HUNK - outtoc->tracks[trknum].frames;
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chdpos+=outtoc->tracks[trknum].frames+outtoc->tracks[trknum].extraframes;
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}
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/*
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for(i=0;i<numtracks;++i)
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{
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printf("%s %d %d %d\n",outinfo->fname[i],outtoc->tracks[i].frames,outtoc->tracks[i].extraframes,outtoc->tracks[i].physframeofs);
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}
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*/
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/* close the input TOC */
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fclose(infile);
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/* store the number of tracks found */
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outtoc->numtrks = numtracks;
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return CHDERR_NONE;
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}
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/*-------------------------------------------------
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chdcd_parse_toc - parse a CDRDAO format TOC file
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-------------------------------------------------*/
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chd_error chdcd_parse_toc(const char *tocfname, cdrom_toc *outtoc, chdcd_track_input_info *outinfo)
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{
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FILE *infile;
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int i, trknum;
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static char token[128];
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if (strstr(tocfname,".gdi"))
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{
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return chdcd_parse_gdi(tocfname, outtoc, outinfo);
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}
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infile = fopen(tocfname, "rt");
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if (infile == (FILE *)NULL)
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{
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return CHDERR_FILE_NOT_FOUND;
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}
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/* clear structures */
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memset(outtoc, 0, sizeof(cdrom_toc));
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memset(outinfo, 0, sizeof(chdcd_track_input_info));
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trknum = -1;
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while (!feof(infile))
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{
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/* get the next line */
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fgets(linebuffer, 511, infile);
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/* if EOF didn't hit, keep going */
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if (!feof(infile))
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{
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i = 0;
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TOKENIZE
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if ((!strcmp(token, "DATAFILE")) || (!strcmp(token, "AUDIOFILE")) || (!strcmp(token, "FILE")))
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{
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int f;
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/* found the data file for a track */
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TOKENIZE
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/* keep the filename */
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strncpy(&outinfo->fname[trknum][0], token, strlen(token));
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/* get either the offset or the length */
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TOKENIZE
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if (!strcmp(token, "SWAP"))
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{
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TOKENIZE
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outinfo->swap[trknum] = 1;
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}
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else
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{
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outinfo->swap[trknum] = 0;
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}
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if (token[0] == '#')
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{
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/* it's a decimal offset, use it */
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f = strtoul(&token[1], NULL, 10);
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}
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else if (isdigit(token[0]))
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{
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/* convert the time to an offset */
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f = msf_to_frames( token );
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f *= (outtoc->tracks[trknum].datasize + outtoc->tracks[trknum].subsize);
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}
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else
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{
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f = 0;
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}
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outinfo->offset[trknum] = f;
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TOKENIZE
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if (isdigit(token[0]))
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{
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// this could be the length or an offset from the previous field.
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f = msf_to_frames( token );
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TOKENIZE
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if (isdigit(token[0]))
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{
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// it was an offset.
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f *= (outtoc->tracks[trknum].datasize + outtoc->tracks[trknum].subsize);
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outinfo->offset[trknum] += f;
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// this is the length.
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f = msf_to_frames( token );
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}
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}
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else if( trknum == 0 && outinfo->offset[trknum] != 0 )
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{
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/* the 1st track might have a length with no offset */
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f = outinfo->offset[trknum] / (outtoc->tracks[trknum].datasize + outtoc->tracks[trknum].subsize);
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outinfo->offset[trknum] = 0;
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}
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else
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{
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/* guesstimate the track length */
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UINT64 tlen;
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printf("Warning: Estimating length of track %d. If this is not the final or only track\n on the disc, the estimate may be wrong.\n", trknum+1);
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tlen = get_file_size(outinfo->fname[trknum]) - outinfo->offset[trknum];
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tlen /= (outtoc->tracks[trknum].datasize + outtoc->tracks[trknum].subsize);
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f = tlen;
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}
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outtoc->tracks[trknum].frames = f;
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}
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else if (!strcmp(token, "TRACK"))
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{
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/* found a new track */
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trknum++;
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/* next token on the line is the track type */
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TOKENIZE
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outtoc->tracks[trknum].trktype = CD_TRACK_MODE1;
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outtoc->tracks[trknum].datasize = 0;
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outtoc->tracks[trknum].subtype = CD_SUB_NONE;
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outtoc->tracks[trknum].subsize = 0;
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cdrom_convert_type_string_to_track_info(token, &outtoc->tracks[trknum]);
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if (outtoc->tracks[trknum].datasize == 0)
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{
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printf("ERROR: Unknown track type [%s]. Contact MAMEDEV.\n", token);
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}
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else if (outtoc->tracks[trknum].trktype != CD_TRACK_MODE1_RAW &&
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outtoc->tracks[trknum].trktype != CD_TRACK_MODE2_RAW &&
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outtoc->tracks[trknum].trktype != CD_TRACK_AUDIO)
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{
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printf("Note: MAME now prefers and can accept RAW format images.\n");
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printf("At least one track of this CDRDAO rip is not either RAW or AUDIO.\n");
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}
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/* next (optional) token on the line is the subcode type */
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TOKENIZE
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cdrom_convert_subtype_string_to_track_info(token, &outtoc->tracks[trknum]);
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}
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}
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}
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/* close the input TOC */
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fclose(infile);
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/* store the number of tracks found */
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outtoc->numtrks = trknum + 1;
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return CHDERR_NONE;
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}
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