src/meta/meta2tga.c

#ifndef lint
static const char       RCSid[] = "$Id: meta2tga.c,v 1.4 2003/10/27 10:28:59 schorsch Exp $";
#endif
/*
 *  Program to convert meta-files to Targa 8-bit color-mapped format
 */

#include  "copyright.h"

#include  "rtprocess.h"
#include  "meta.h"
#include  "plot.h"
#include  "rast.h"
#include  "targa.h"

#define  MAXALLOC  5000
#define  DXSIZE  400            /* default x resolution */
#define  DYSIZE  400            /* default y resolution */
#define  XCOM  "pexpand +vOCImsp -DP %s | psort +y"


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;

static int putthead(struct hdStruct  *hp, char  *ip, FILE  *fp);


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


int
main(
        int  argc,
        char  **argv
)

{
 FILE  *fp;
 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);
 }


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


void
initfile(void)          /* 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};
     */
    static unsigned char  cmap[24] = {0,0,0, 0,0,255, 0,188,0, 255,152,0,
                        0,200,200, 255,0,255, 179,179,0, 255,255,255};
    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);
}


void
nextpage(void)          /* 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

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

{
    int  i, c2;
    register unsigned char  *scanline;
    register int  j, beg, cnt = 0;

    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++;
    }
    
}


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


int
putthead(               /* 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:	1.5
Committed:	Sat Nov 15 02:13:37 2003 UTC (21 years, 1 month ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 1.4:	+30 -23 lines
Log Message:	Continued ANSIfication, and reduced other compile warnings.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	1.5	static const char RCSid[] = "$Id: meta2tga.c,v 1.4 2003/10/27 10:28:59 schorsch Exp $";
3	greg	1.1	#endif
4			/*
5			* Program to convert meta-files to Targa 8-bit color-mapped format
6			*/
7
8	schorsch	1.4	#include "copyright.h"
9	greg	1.1
10	schorsch	1.4	#include "rtprocess.h"
11	greg	1.1	#include "meta.h"
12			#include "plot.h"
13			#include "rast.h"
14			#include "targa.h"
15
16	schorsch	1.4	#define MAXALLOC 5000
17			#define DXSIZE 400 /* default x resolution */
18			#define DYSIZE 400 /* default y resolution */
19			#define XCOM "pexpand +vOCImsp -DP %s \| psort +y"
20	greg	1.1
21
22			char *progname;
23
24			SCANBLOCK outblock;
25
26			int dxsize = DXSIZE, dysize = DYSIZE;
27
28			int maxalloc = MAXALLOC;
29
30			int ydown = 0;
31
32			static char outname[64];
33			static char *outtack = NULL;
34
35			static FILE *fout;
36
37			static int lineno = 0;
38
39			static short condonly = FALSE,
40			conditioned = FALSE;
41
42	schorsch	1.5	static int putthead(struct hdStruct hp, char ip, FILE *fp);
43
44
45
46	greg	1.1	char *
47			findtack(s) /* find place to tack on suffix */
48			register char *s;
49			{
50			while (s && s != '.')
51			s++;
52			return(s);
53			}
54
55
56	schorsch	1.5	int
57			main(
58			int argc,
59			char **argv
60			)
61	greg	1.1
62			{
63			FILE *fp;
64			char comargs[200], command[300];
65
66			fout = stdout;
67			progname = *argv++;
68			argc--;
69
70			condonly = FALSE;
71			conditioned = FALSE;
72
73			while (argc && **argv == '-') {
74			switch ((argv+1)) {
75			case 'c':
76			condonly = TRUE;
77			break;
78			case 'r':
79			conditioned = TRUE;
80			break;
81			case 'm':
82			minwidth = atoi(*++argv);
83			argc--;
84			break;
85			case 'x':
86			dxsize = atoi(*++argv);
87			argc--;
88			break;
89			case 'y':
90			dysize = atoi(*++argv);
91			argc--;
92			break;
93			case 'o':
94			strcpy(outname, *++argv);
95			outtack = findtack(outname);
96			argc--;
97			break;
98			default:
99			error(WARNING, "unknown option");
100			break;
101			}
102			argv++;
103			argc--;
104			}
105
106			if (conditioned) {
107			if (argc)
108			while (argc) {
109			fp = efopen(*argv, "r");
110			plot(fp);
111			fclose(fp);
112			argv++;
113			argc--;
114			}
115			else
116			plot(stdin);
117			if (lineno)
118			nextpage();
119			} else {
120			comargs[0] = '\0';
121			while (argc) {
122			strcat(comargs, " ");
123			strcat(comargs, *argv);
124			argv++;
125			argc--;
126			}
127			sprintf(command, XCOM, comargs);
128			if (condonly)
129			return(system(command));
130			else {
131			if ((fp = popen(command, "r")) == NULL)
132			error(SYSTEM, "cannot execute input filter");
133			plot(fp);
134			pclose(fp);
135			if (lineno)
136			nextpage();
137			}
138			}
139
140			return(0);
141			}
142
143
144
145	schorsch	1.5	void
146			thispage(void) /* rewind current file */
147	greg	1.1	{
148			if (lineno)
149			error(USER, "cannot restart page in thispage");
150			}
151
152
153	schorsch	1.5	void
154			initfile(void) /* initialize this file */
155	greg	1.1	{
156			static int filenum = 0;
157	greg	1.3	/*
158	greg	1.1	static unsigned char cmap[24] = {255,255,255, 255,152,0, 0,188,0, 0,0,255,
159			179,179,0, 255,0,255, 0,200,200, 0,0,0};
160	greg	1.3	*/
161			static unsigned char cmap[24] = {0,0,0, 0,0,255, 0,188,0, 255,152,0,
162			0,200,200, 255,0,255, 179,179,0, 255,255,255};
163	greg	1.1	struct hdStruct thead;
164			register int i;
165
166			if (outtack != NULL) {
167			sprintf(outtack, "%d.tga", ++filenum);
168			fout = efopen(outname, "w");
169			}
170			if (fout == NULL)
171			error(USER, "no output file");
172			thead.mapType = CM_HASMAP;
173			thead.dataType = IM_CCMAP;
174			thead.mapOrig = 0;
175			thead.mapLength = 256;
176			thead.CMapBits = 24;
177			thead.XOffset = 0;
178			thead.YOffset = 0;
179			thead.x = dxsize;
180			thead.y = dysize;
181			thead.dataBits = 8;
182			thead.imType = 0;
183			putthead(&thead, NULL, fout);
184			for (i = 0; i < 8*3; i++)
185			putc(cmap[i], fout);
186			while (i++ < 256*3)
187			putc(0, fout);
188			}
189
190
191
192	schorsch	1.5	void
193			nextpage(void) /* advance to next page */
194	greg	1.1
195			{
196
197			if (lineno == 0)
198			return;
199			if (fout != NULL) {
200			while (lineno < dysize) {
201			nextblock();
202			outputblock();
203			}
204			fclose(fout);
205			fout = NULL;
206			}
207			lineno = 0;
208
209			}
210
211
212
213			#define MINRUN 4
214
215	schorsch	1.5	extern void
216			printblock(void) /* output scanline block to file */
217	greg	1.1
218			{
219			int i, c2;
220			register unsigned char *scanline;
221	schorsch	1.5	register int j, beg, cnt = 0;
222	greg	1.1
223			if (lineno == 0)
224			initfile();
225			for (i = outblock.ybot; i <= outblock.ytop && i < dysize; i++) {
226			scanline = outblock.cols[i-outblock.ybot];
227			for (j = outblock.xleft; j <= outblock.xright; j += cnt) {
228			for (beg = j; beg <= outblock.xright; beg += cnt) {
229			for (cnt = 1; cnt < 128 && beg+cnt <= outblock.xright &&
230			scanline[beg+cnt] == scanline[beg]; cnt++)
231			;
232			if (cnt >= MINRUN)
233			break; /* long enough */
234			}
235			while (j < beg) { /* write out non-run */
236			if ((c2 = beg-j) > 128) c2 = 128;
237			putc(c2-1, fout);
238			while (c2--)
239			putc(scanline[j++], fout);
240			}
241			if (cnt >= MINRUN) { /* write out run */
242			putc(127+cnt, fout);
243			putc(scanline[beg], fout);
244			} else
245			cnt = 0;
246			}
247			lineno++;
248			}
249
250			}
251
252
253	schorsch	1.5	void
254			putint2( /* put a 2-byte positive integer */
255			register int i,
256			register FILE *fp
257			)
258	greg	1.1	{
259			putc(i&0xff, fp);
260			putc(i>>8&0xff, fp);
261			}
262
263
264	schorsch	1.5	int
265			putthead( /* write header to output */
266			struct hdStruct *hp,
267			char *ip,
268			register FILE *fp
269			)
270	greg	1.1	{
271			if (ip != NULL)
272			putc(strlen(ip), fp);
273			else
274			putc(0, fp);
275			putc(hp->mapType, fp);
276			putc(hp->dataType, fp);
277			putint2(hp->mapOrig, fp);
278			putint2(hp->mapLength, fp);
279			putc(hp->CMapBits, fp);
280			putint2(hp->XOffset, fp);
281			putint2(hp->YOffset, fp);
282			putint2(hp->x, fp);
283			putint2(hp->y, fp);
284			putc(hp->dataBits, fp);
285			putc(hp->imType, fp);
286
287			if (ip != NULL)
288			fputs(ip, fp);
289
290			return(ferror(fp) ? -1 : 0);
291			}