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#ifndef lint |
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static const char RCSid[] = "$Id: meta2bmp.c,v 1.4 2019/11/18 22:12:32 greg Exp $"; |
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#endif |
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/* |
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* Program to convert meta-files to BMP 8-bit color-mapped format |
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*/ |
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|
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#include "copyright.h" |
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|
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#include "rtprocess.h" |
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#include "meta.h" |
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#include "plot.h" |
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#include "rast.h" |
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#include "bmpfile.h" |
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#include "targa.h" |
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|
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#define MAXALLOC 100000 |
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#define DXSIZE 400 /* default x resolution */ |
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#define DYSIZE 400 /* default y resolution */ |
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#define XCOM "pexpand +vOCImsp -DP %s | psort +y" |
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|
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|
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char *progname; |
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|
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SCANBLOCK outblock; |
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|
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int dxsiz = DXSIZE, dysiz = DYSIZE; |
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|
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int maxalloc = MAXALLOC; |
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|
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int ydown = 0; |
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|
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static char outname[64]; |
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static char *outtack = NULL; |
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|
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static BMPWriter *bmpw = NULL; |
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|
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static int lineno = 0; |
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|
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static short condonly = FALSE, |
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conditioned = FALSE; |
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|
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|
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|
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|
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char * |
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findtack(char *s) /* find place to tack on suffix */ |
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{ |
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while (*s && *s != '.') |
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s++; |
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return(s); |
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} |
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|
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|
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int |
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main( |
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int argc, |
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char **argv |
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) |
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{ |
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FILE *fp; |
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char comargs[200], command[300]; |
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|
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progname = *argv++; |
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argc--; |
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|
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condonly = FALSE; |
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conditioned = FALSE; |
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|
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while (argc && **argv == '-') { |
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switch (*(*argv+1)) { |
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case 'c': |
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condonly = TRUE; |
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break; |
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case 'r': |
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conditioned = TRUE; |
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break; |
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case 'm': |
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minwidth = atoi(*++argv); |
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argc--; |
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break; |
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case 'x': |
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dxsiz = atoi(*++argv); |
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argc--; |
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break; |
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case 'y': |
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dysiz = atoi(*++argv); |
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argc--; |
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break; |
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case 'o': |
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strcpy(outname, *++argv); |
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outtack = findtack(outname); |
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argc--; |
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break; |
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default: |
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error(WARNING, "unknown option"); |
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break; |
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} |
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argv++; |
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argc--; |
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} |
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|
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if (conditioned) { |
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if (argc) |
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while (argc) { |
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fp = efopen(*argv, "r"); |
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plot(fp); |
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fclose(fp); |
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argv++; |
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argc--; |
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} |
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else |
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plot(stdin); |
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if (lineno) |
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nextpage(); |
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} else { |
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comargs[0] = '\0'; |
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while (argc) { |
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strcat(comargs, " "); |
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strcat(comargs, *argv); |
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argv++; |
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argc--; |
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} |
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sprintf(command, XCOM, comargs); |
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if (condonly) |
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return(system(command)); |
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else { |
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if ((fp = popen(command, "r")) == NULL) |
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error(SYSTEM, "cannot execute input filter"); |
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plot(fp); |
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pclose(fp); |
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if (lineno) |
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nextpage(); |
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} |
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} |
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|
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return(0); |
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} |
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|
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|
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void |
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thispage(void) /* rewind current file */ |
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{ |
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if (lineno) |
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error(USER, "cannot restart page in thispage"); |
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} |
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|
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|
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void |
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initfile(void) /* initialize this file */ |
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{ |
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static const unsigned char cmap[8][3] = {{0,0,0}, {0,0,255}, {0,188,0}, |
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{255,152,0}, {0,200,200}, {255,0,255}, {179,179,0}, {255,255,255}}; |
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static int filenum = 0; |
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BMPHeader *hp; |
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int i; |
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|
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hp = BMPmappedHeader(dxsiz, dysiz, 0, 256); |
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if (hp == NULL) |
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error(USER, "Illegal image parameter(s)"); |
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hp->compr = BI_RLE8; |
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for (i = 0; i < 8; i++) { |
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hp->palette[i].r = cmap[i][2]; |
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hp->palette[i].g = cmap[i][1]; |
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hp->palette[i].b = cmap[i][0]; |
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} |
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hp->impColors = 8; |
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if (outtack != NULL) { |
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sprintf(outtack, "%d.bmp", ++filenum); |
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bmpw = BMPopenOutputFile(outname, hp); |
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} else { |
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bmpw = BMPopenOutputStream(stdout, hp); |
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} |
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if (bmpw == NULL) |
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error(USER, "Cannot create output"); |
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} |
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|
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|
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void |
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nextpage(void) /* advance to next page */ |
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{ |
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|
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if (lineno == 0) |
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return; |
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if (bmpw != NULL) { |
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while (lineno < dysiz) { |
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nextblock(); |
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outputblock(); |
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} |
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BMPcloseOutput(bmpw); |
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bmpw = NULL; |
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} |
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lineno = 0; |
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|
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} |
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|
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|
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#define MINRUN 4 |
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|
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void |
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printblock(void) /* output scanline block to file */ |
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{ |
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int i; |
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unsigned char *scanline; |
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|
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if (lineno == 0) |
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initfile(); |
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for (i = outblock.ybot; i <= outblock.ytop && i < dysiz; i++) { |
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scanline = outblock.cols[i-outblock.ybot] + outblock.xleft; |
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memcpy((void *)bmpw->scanline, (void *)scanline, |
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sizeof(uint8)*(outblock.xright-outblock.xleft+1)); |
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if (BMPwriteScanline(bmpw) != BIR_OK) |
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error(SYSTEM, "Error writing BMP file"); |
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lineno++; |
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} |
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|
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} |
