src/meta/meta2tga.c

#ifndef lint
static const char       RCSid[] = "$Id: meta2tga.c,v 1.1 2003/02/22 02:07:26 greg Exp $";
#endif
/*
 *  Program to convert meta-files to Targa 8-bit color-mapped format
 */


#define  MAXALLOC  5000

#define  DXSIZE  400            /* default x resolution */

#define  DYSIZE  400            /* default y resolution */

#define  XCOM  "pexpand +vOCImsp -DP %s | psort +y"


#include  "meta.h"

#include  "plot.h"

#include  "rast.h"

#include  "targa.h"


char  *progname;

SCANBLOCK       outblock;

int  dxsize = DXSIZE, dysize = DYSIZE;

int  maxalloc = MAXALLOC;

int  ydown = 0;

static char  outname[64];
static char  *outtack = NULL;

static FILE  *fout;

static int  lineno = 0; 

static short  condonly = FALSE,
              conditioned = FALSE;

char *
findtack(s)                     /* find place to tack on suffix */
register char *s;
{
        while (*s && *s != '.')
                s++;
        return(s);
}


main(argc, argv)

int  argc;
char  **argv;

{
 FILE  *fp;
 FILE  *popen();
 char  comargs[200], command[300];

  fout = stdout;
 progname = *argv++;
 argc--;

 condonly = FALSE;
 conditioned = FALSE;
 
 while (argc && **argv == '-')  {
    switch (*(*argv+1))  {
       case 'c':
          condonly = TRUE;
          break;
       case 'r':
          conditioned = TRUE;
          break;
       case 'm':
          minwidth = atoi(*++argv);
          argc--;
          break;
       case 'x':
          dxsize = atoi(*++argv);
          argc--;
          break;
       case 'y':
          dysize = atoi(*++argv);
          argc--;
          break;
       case 'o':
          strcpy(outname, *++argv);
          outtack = findtack(outname);
          argc--;
          break;
       default:
          error(WARNING, "unknown option");
          break;
       }
    argv++;
    argc--;
    }

 if (conditioned) {
    if (argc)
       while (argc)  {
          fp = efopen(*argv, "r");
          plot(fp);
          fclose(fp);
          argv++;
          argc--;
          }
    else
       plot(stdin);
    if (lineno)
        nextpage();
 } else  {
    comargs[0] = '\0';
    while (argc)  {
       strcat(comargs, " ");
       strcat(comargs, *argv);
       argv++;
       argc--;
       }
    sprintf(command, XCOM, comargs);
    if (condonly)
       return(system(command));
    else  {
       if ((fp = popen(command, "r")) == NULL)
          error(SYSTEM, "cannot execute input filter");
       plot(fp);
       pclose(fp);
       if (lineno)
          nextpage();
       }
    }

 return(0);
 }


thispage()              /* rewind current file */
{
    if (lineno)
        error(USER, "cannot restart page in thispage");
}


initfile()              /* initialize this file */
{
    static int  filenum = 0;
    static unsigned char  cmap[24] = {255,255,255, 255,152,0, 0,188,0, 0,0,255,
                        179,179,0, 255,0,255, 0,200,200, 0,0,0};
    struct hdStruct  thead;
    register int  i;

    if (outtack != NULL) {
        sprintf(outtack, "%d.tga", ++filenum);
        fout = efopen(outname, "w");
    }
    if (fout == NULL)
        error(USER, "no output file");
    thead.mapType = CM_HASMAP;
    thead.dataType = IM_CCMAP;
    thead.mapOrig = 0;
    thead.mapLength = 256;
    thead.CMapBits = 24;
    thead.XOffset = 0;
    thead.YOffset = 0;
    thead.x = dxsize;
    thead.y = dysize;
    thead.dataBits = 8;
    thead.imType = 0;
    putthead(&thead, NULL, fout);
    for (i = 0; i < 8*3; i++)
        putc(cmap[i], fout);
    while (i++ < 256*3)
        putc(0, fout);
}


nextpage()              /* advance to next page */

{

    if (lineno == 0)
        return;
    if (fout != NULL) {
        while (lineno < dysize) {
            nextblock();
            outputblock();
        }
        fclose(fout);
        fout = NULL;
    }
    lineno = 0;

}


#define MINRUN  4


printblock()            /* output scanline block to file */

{
    int  i, c2;
    register unsigned char  *scanline;
    register int  j, beg, cnt;

    if (lineno == 0)
        initfile();
    for (i = outblock.ybot; i <= outblock.ytop && i < dysize; i++) {
        scanline = outblock.cols[i-outblock.ybot];
        for (j = outblock.xleft; j <= outblock.xright; j += cnt) {
            for (beg = j; beg <= outblock.xright; beg += cnt) {
                for (cnt = 1; cnt < 128 && beg+cnt <= outblock.xright &&
                        scanline[beg+cnt] == scanline[beg]; cnt++)
                    ;
                if (cnt >= MINRUN)
                    break;                      /* long enough */
            }
            while (j < beg) {           /* write out non-run */
                if ((c2 = beg-j) > 128) c2 = 128;
                putc(c2-1, fout);
                while (c2--)
                    putc(scanline[j++], fout);
            }
            if (cnt >= MINRUN) {                /* write out run */
                putc(127+cnt, fout);
                putc(scanline[beg], fout);
            } else
                cnt = 0;
        }
        lineno++;
    }
    
}


putint2(i, fp)                  /* put a 2-byte positive integer */
register int  i;
register FILE   *fp;
{
        putc(i&0xff, fp);
        putc(i>>8&0xff, fp);
}


putthead(hp, ip, fp)            /* write header to output */
struct hdStruct  *hp;
char  *ip;
register FILE  *fp;
{
        if (ip != NULL)
                putc(strlen(ip), fp);
        else
                putc(0, fp);
        putc(hp->mapType, fp);
        putc(hp->dataType, fp);
        putint2(hp->mapOrig, fp);
        putint2(hp->mapLength, fp);
        putc(hp->CMapBits, fp);
        putint2(hp->XOffset, fp);
        putint2(hp->YOffset, fp);
        putint2(hp->x, fp);
        putint2(hp->y, fp);
        putc(hp->dataBits, fp);
        putc(hp->imType, fp);

        if (ip != NULL)
                fputs(ip, fp);

        return(ferror(fp) ? -1 : 0);
}
Revision:	1.2
Committed:	Fri Aug 1 14:14:24 2003 UTC (20 years, 9 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 1.1:	+1 -15 lines
Log Message:	Eliminated CPM, MAC, and UNIX conditional compiles.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	1.2	static const char RCSid[] = "$Id: meta2tga.c,v 1.1 2003/02/22 02:07:26 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* Program to convert meta-files to Targa 8-bit color-mapped format
6			*/
7
8
9			#define MAXALLOC 5000
10
11			#define DXSIZE 400 /* default x resolution */
12
13			#define DYSIZE 400 /* default y resolution */
14
15			#define XCOM "pexpand +vOCImsp -DP %s \| psort +y"
16
17
18
19
20			#include "meta.h"
21
22			#include "plot.h"
23
24			#include "rast.h"
25
26			#include "targa.h"
27
28
29
30
31			char *progname;
32
33			SCANBLOCK outblock;
34
35			int dxsize = DXSIZE, dysize = DYSIZE;
36
37			int maxalloc = MAXALLOC;
38
39			int ydown = 0;
40
41			static char outname[64];
42			static char *outtack = NULL;
43
44			static FILE *fout;
45
46			static int lineno = 0;
47
48			static short condonly = FALSE,
49			conditioned = FALSE;
50
51			char *
52			findtack(s) /* find place to tack on suffix */
53			register char *s;
54			{
55			while (s && s != '.')
56			s++;
57			return(s);
58			}
59
60
61			main(argc, argv)
62
63			int argc;
64			char **argv;
65
66			{
67			FILE *fp;
68			FILE *popen();
69			char comargs[200], command[300];
70
71			fout = stdout;
72			progname = *argv++;
73			argc--;
74
75			condonly = FALSE;
76			conditioned = FALSE;
77
78			while (argc && **argv == '-') {
79			switch ((argv+1)) {
80			case 'c':
81			condonly = TRUE;
82			break;
83			case 'r':
84			conditioned = TRUE;
85			break;
86			case 'm':
87			minwidth = atoi(*++argv);
88			argc--;
89			break;
90			case 'x':
91			dxsize = atoi(*++argv);
92			argc--;
93			break;
94			case 'y':
95			dysize = atoi(*++argv);
96			argc--;
97			break;
98			case 'o':
99			strcpy(outname, *++argv);
100			outtack = findtack(outname);
101			argc--;
102			break;
103			default:
104			error(WARNING, "unknown option");
105			break;
106			}
107			argv++;
108			argc--;
109			}
110
111			if (conditioned) {
112			if (argc)
113			while (argc) {
114			fp = efopen(*argv, "r");
115			plot(fp);
116			fclose(fp);
117			argv++;
118			argc--;
119			}
120			else
121			plot(stdin);
122			if (lineno)
123			nextpage();
124			} else {
125			comargs[0] = '\0';
126			while (argc) {
127			strcat(comargs, " ");
128			strcat(comargs, *argv);
129			argv++;
130			argc--;
131			}
132			sprintf(command, XCOM, comargs);
133			if (condonly)
134			return(system(command));
135			else {
136			if ((fp = popen(command, "r")) == NULL)
137			error(SYSTEM, "cannot execute input filter");
138			plot(fp);
139			pclose(fp);
140			if (lineno)
141			nextpage();
142			}
143			}
144
145			return(0);
146			}
147
148
149
150
151
152
153			thispage() /* rewind current file */
154			{
155			if (lineno)
156			error(USER, "cannot restart page in thispage");
157			}
158
159
160
161			initfile() /* initialize this file */
162			{
163			static int filenum = 0;
164			static unsigned char cmap[24] = {255,255,255, 255,152,0, 0,188,0, 0,0,255,
165			179,179,0, 255,0,255, 0,200,200, 0,0,0};
166			struct hdStruct thead;
167			register int i;
168
169			if (outtack != NULL) {
170			sprintf(outtack, "%d.tga", ++filenum);
171			fout = efopen(outname, "w");
172			}
173			if (fout == NULL)
174			error(USER, "no output file");
175			thead.mapType = CM_HASMAP;
176			thead.dataType = IM_CCMAP;
177			thead.mapOrig = 0;
178			thead.mapLength = 256;
179			thead.CMapBits = 24;
180			thead.XOffset = 0;
181			thead.YOffset = 0;
182			thead.x = dxsize;
183			thead.y = dysize;
184			thead.dataBits = 8;
185			thead.imType = 0;
186			putthead(&thead, NULL, fout);
187			for (i = 0; i < 8*3; i++)
188			putc(cmap[i], fout);
189			while (i++ < 256*3)
190			putc(0, fout);
191			}
192
193
194
195
196			nextpage() /* advance to next page */
197
198			{
199
200			if (lineno == 0)
201			return;
202			if (fout != NULL) {
203			while (lineno < dysize) {
204			nextblock();
205			outputblock();
206			}
207			fclose(fout);
208			fout = NULL;
209			}
210			lineno = 0;
211
212			}
213
214
215
216			#define MINRUN 4
217
218
219			printblock() /* output scanline block to file */
220
221			{
222			int i, c2;
223			register unsigned char *scanline;
224			register int j, beg, cnt;
225
226			if (lineno == 0)
227			initfile();
228			for (i = outblock.ybot; i <= outblock.ytop && i < dysize; i++) {
229			scanline = outblock.cols[i-outblock.ybot];
230			for (j = outblock.xleft; j <= outblock.xright; j += cnt) {
231			for (beg = j; beg <= outblock.xright; beg += cnt) {
232			for (cnt = 1; cnt < 128 && beg+cnt <= outblock.xright &&
233			scanline[beg+cnt] == scanline[beg]; cnt++)
234			;
235			if (cnt >= MINRUN)
236			break; /* long enough */
237			}
238			while (j < beg) { /* write out non-run */
239			if ((c2 = beg-j) > 128) c2 = 128;
240			putc(c2-1, fout);
241			while (c2--)
242			putc(scanline[j++], fout);
243			}
244			if (cnt >= MINRUN) { /* write out run */
245			putc(127+cnt, fout);
246			putc(scanline[beg], fout);
247			} else
248			cnt = 0;
249			}
250			lineno++;
251			}
252
253			}
254
255
256			putint2(i, fp) /* put a 2-byte positive integer */
257			register int i;
258			register FILE *fp;
259			{
260			putc(i&0xff, fp);
261			putc(i>>8&0xff, fp);
262			}
263
264
265			putthead(hp, ip, fp) /* write header to output */
266			struct hdStruct *hp;
267			char *ip;
268			register FILE *fp;
269			{
270			if (ip != NULL)
271			putc(strlen(ip), fp);
272			else
273			putc(0, fp);
274			putc(hp->mapType, fp);
275			putc(hp->dataType, fp);
276			putint2(hp->mapOrig, fp);
277			putint2(hp->mapLength, fp);
278			putc(hp->CMapBits, fp);
279			putint2(hp->XOffset, fp);
280			putint2(hp->YOffset, fp);
281			putint2(hp->x, fp);
282			putint2(hp->y, fp);
283			putc(hp->dataBits, fp);
284			putc(hp->imType, fp);
285
286			if (ip != NULL)
287			fputs(ip, fp);
288
289			return(ferror(fp) ? -1 : 0);
290			}