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author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2011-08-12 21:54:52 +0000 |
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committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2011-08-12 21:54:52 +0000 |
commit | 0c3cb4b7fb69de19bd842d43fd68222a84d7bd5e (patch) | |
tree | 05ae0aa50baa1984e6157f478d8a4c27de858ead | |
parent | 8b158f196ff127da0fe84a3beddc4ae72aec2120 (diff) | |
download | netpbm-mirror-0c3cb4b7fb69de19bd842d43fd68222a84d7bd5e.tar.gz netpbm-mirror-0c3cb4b7fb69de19bd842d43fd68222a84d7bd5e.tar.xz netpbm-mirror-0c3cb4b7fb69de19bd842d43fd68222a84d7bd5e.zip |
cleanup
git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@1537 9d0c8265-081b-0410-96cb-a4ca84ce46f8
-rw-r--r-- | converter/other/rasttopnm.c | 448 |
1 files changed, 231 insertions, 217 deletions
diff --git a/converter/other/rasttopnm.c b/converter/other/rasttopnm.c index aa55850b..d4233b19 100644 --- a/converter/other/rasttopnm.c +++ b/converter/other/rasttopnm.c @@ -10,254 +10,268 @@ ** implied warranty. */ +#include "pm_c_util.h" +#include "mallocvar.h" +#include "shhopt.h" #include "pnm.h" #include "rast.h" + + +struct cmdlineInfo { + /* All the information the user supplied in the command line, + in a form easy for the program to use. + */ + const char *inputFileName; +}; + +static void +parseCommandLine(int argc, const char ** argv, + struct cmdlineInfo * const cmdlineP) { +/*---------------------------------------------------------------------------- + Note that the file spec array we return is stored in the storage that + was passed to us as the argv array. +-----------------------------------------------------------------------------*/ + optEntry * option_def; + /* Instructions to OptParseOptions2 on how to parse our options. + */ + optStruct3 opt; + + unsigned int option_def_index; + + MALLOCARRAY_NOFAIL(option_def, 100); + + option_def_index = 0; /* incremented by OPTENT3 */ + + opt.opt_table = option_def; + opt.short_allowed = false; /* We have no short (old-fashioned) options */ + opt.allowNegNum = false; /* We have no parms that are negative numbers */ + + pm_optParseOptions3(&argc, (char **)argv, opt, sizeof(opt), 0); + /* Uses and sets argc, argv, and some of *cmdlineP and others. */ + + if (argc-1 == 0) + cmdlineP->inputFileName = "-"; + else if (argc-1 != 1) + pm_error("Program takes zero or one argument (filename). You " + "specified %d", argc-1); + else + cmdlineP->inputFileName = argv[1]; +} + + + int -main( argc, argv ) - int argc; - char* argv[]; - { - FILE* ifp; +main(int argc, const char ** const argv) { + + struct cmdlineInfo cmdline; + FILE * ifP; struct rasterfile header; colormap_t pr_colormap; - int grayscale; - struct pixrect* pr; - xel* xelrow; - register xel* xP; - int argn, rows, cols, format, depth, i, row, mask; - register int col; + bool grayscale; + struct pixrect * pr; + xel * xelrow; + int rows, cols, format; + unsigned int row; + unsigned int depth; xelval maxval; xel zero, one; int linesize; - unsigned char* data; - unsigned char* byteP; + unsigned char * data; + unsigned char * byteP; + int rc; - pnm_init( &argc, argv ); + pm_proginit(&argc, argv); - argn = 1; - - if ( argn != argc ) - { - ifp = pm_openr( argv[argn] ); - ++argn; - } - else - ifp = stdin; - - if ( argn != argc ) - pm_usage( "[rastfile]" ); + parseCommandLine(argc, argv, &cmdline); /* Read in the rasterfile. First the header. */ - if ( pr_load_header( ifp, &header ) != 0 ) - pm_error( "unable to read in rasterfile header" ); + rc = pr_load_header(ifP, &header); + if (rc != 0 ) + pm_error("unable to read in rasterfile header"); cols = header.ras_width; rows = header.ras_height; depth = header.ras_depth; - if ( cols <= 0 ) - pm_error( "invalid cols: %d", cols ); - if ( rows <= 0 ) - pm_error( "invalid rows: %d", rows ); + if (cols <= 0) + pm_error( "invalid cols: %d", cols ); + if (rows <= 0) + pm_error( "invalid rows: %d", rows ); /* If there is a color map, read it. */ - grayscale = 1; - if ( header.ras_maplength != 0 ) - { - if ( pr_load_colormap( ifp, &header, &pr_colormap ) != 0 ) - pm_error( "unable to skip colormap data" ); - for ( i = 0; i < header.ras_maplength / 3; ++i ) - if ( pr_colormap.map[0][i] != pr_colormap.map[1][i] || - pr_colormap.map[1][i] != pr_colormap.map[2][i] ) - { - grayscale = 0; - break; - } - } + if (header.ras_maplength != 0) { + int rc; + unsigned int i; + + rc = pr_load_colormap(ifP, &header, &pr_colormap); + + if (rc != 0 ) + pm_error("unable to skip colormap data"); + + for (i = 0, grayscale = true; i < header.ras_maplength / 3; ++i) { + if (pr_colormap.map[0][i] != pr_colormap.map[1][i] || + pr_colormap.map[1][i] != pr_colormap.map[2][i]) { + grayscale = false; + } + } + } else + grayscale = true; /* Check the depth and color map. */ - switch ( depth ) - { - case 1: - if ( header.ras_maptype == RMT_NONE && header.ras_maplength == 0 ) - { - maxval = 1; - format = PBM_TYPE; - PNM_ASSIGN1( zero, maxval ); - PNM_ASSIGN1( one, 0 ); - } - else if ( header.ras_maptype == RMT_EQUAL_RGB && - header.ras_maplength == 6 ) - { - if ( grayscale ) - { - maxval = 255; - format = PGM_TYPE; - PNM_ASSIGN1( zero, pr_colormap.map[0][0] ); - PNM_ASSIGN1( one, pr_colormap.map[0][1] ); - } - else - { - maxval = 255; - format = PPM_TYPE; - PPM_ASSIGN( - zero, pr_colormap.map[0][0], pr_colormap.map[1][0], - pr_colormap.map[2][0] ); - PPM_ASSIGN( - one, pr_colormap.map[0][1], pr_colormap.map[1][1], - pr_colormap.map[2][1] ); - } - } - else - pm_error( - "this depth-1 rasterfile has a non-standard colormap - " - "type %ld length %ld", - header.ras_maptype, header.ras_maplength ); - break; - - case 8: - if ( grayscale ) - { - maxval = 255; - format = PGM_TYPE; - } - else if ( header.ras_maptype == RMT_EQUAL_RGB ) - { - maxval = 255; - format = PPM_TYPE; - } - else - pm_error( - "this depth-8 rasterfile has a non-standard colormap - " - "type %ld length %ld", - header.ras_maptype, header.ras_maplength ); - break; - - case 24: - case 32: - if ( header.ras_maptype == RMT_NONE && header.ras_maplength == 0 ) - ; - else if ( header.ras_maptype == RMT_RAW || header.ras_maplength == 768 ) - ; - else - pm_error( - "this depth-%d rasterfile has a non-standard colormap - " - "type %ld length %ld", - depth, header.ras_maptype, header.ras_maplength ); - maxval = 255; - format = PPM_TYPE; - break; - - default: - pm_error( - "invalid depth: %d. Can only handle depth 1, 8, 24, or 32.", - depth ); - } + switch (depth) { + case 1: + if (header.ras_maptype == RMT_NONE && header.ras_maplength == 0) { + maxval = 1; + format = PBM_TYPE; + PNM_ASSIGN1(zero, maxval); + PNM_ASSIGN1(one, 0); + } else if (header.ras_maptype == RMT_EQUAL_RGB && + header.ras_maplength == 6) { + if (grayscale) { + maxval = 255; + format = PGM_TYPE; + PNM_ASSIGN1( zero, pr_colormap.map[0][0] ); + PNM_ASSIGN1( one, pr_colormap.map[0][1] ); + } else { + maxval = 255; + format = PPM_TYPE; + PPM_ASSIGN( + zero, pr_colormap.map[0][0], pr_colormap.map[1][0], + pr_colormap.map[2][0]); + PPM_ASSIGN( + one, pr_colormap.map[0][1], pr_colormap.map[1][1], + pr_colormap.map[2][1]); + } + } else + pm_error( + "this depth-1 rasterfile has a non-standard colormap - " + "type %ld length %ld", + header.ras_maptype, header.ras_maplength); + break; - /* Now load the data. The pixrect returned is a memory pixrect. */ - if ( ( pr = pr_load_image( ifp, &header, NULL ) ) == NULL ) - pm_error( - "unable to read in the image from the rasterfile" ); + case 8: + if (grayscale) { + maxval = 255; + format = PGM_TYPE; + } else if (header.ras_maptype == RMT_EQUAL_RGB) { + maxval = 255; + format = PPM_TYPE; + } else + pm_error( + "this depth-8 rasterfile has a non-standard colormap - " + "type %ld length %ld", + header.ras_maptype, header.ras_maplength); + break; + + case 24: + case 32: + if (header.ras_maptype == RMT_NONE && header.ras_maplength == 0); + else if (header.ras_maptype == RMT_RAW || header.ras_maplength == 768); + else + pm_error( + "this depth-%d rasterfile has a non-standard colormap - " + "type %ld length %ld", + depth, header.ras_maptype, header.ras_maplength); + maxval = 255; + format = PPM_TYPE; + break; + + default: + pm_error("invalid depth: %d. Can handle only depth 1, 8, 24, or 32.", + depth); + } - linesize = ( (struct mpr_data*) pr->pr_data )->md_linebytes; - data = ( (struct mpr_data*) pr->pr_data )->md_image; + /* Now load the data. The pixrect returned is a memory pixrect. */ + pr = pr_load_image(ifP, &header, NULL); + if (pr == NULL ) + pm_error("unable to read in the image from the rasterfile" ); - pm_close( ifp ); + linesize = ((struct mpr_data*) pr->pr_data)->md_linebytes; + data = ((struct mpr_data*) pr->pr_data)->md_image; /* Now write out the anymap. */ - pnm_writepnminit( stdout, cols, rows, maxval, format, 0 ); - xelrow = pnm_allocrow( cols ); - switch ( PNM_FORMAT_TYPE(format) ) - { - case PBM_TYPE: - pm_message( "writing PBM file" ); + pnm_writepnminit(stdout, cols, rows, maxval, format, 0); + xelrow = pnm_allocrow(cols); + switch (PNM_FORMAT_TYPE(format)) { + case PBM_TYPE: + pm_message("writing PBM file"); break; - - case PGM_TYPE: - pm_message( "writing PGM file" ); + case PGM_TYPE: + pm_message("writing PGM file"); break; - - case PPM_TYPE: - pm_message( "writing PPM file" ); + case PPM_TYPE: + pm_message("writing PPM file"); break; + default: + abort(); + } + for (row = 0; row < rows; ++row) { + byteP = data; + switch (depth) { + case 1: { + unsigned int col; + unsigned char mask; + for (col = 0, mask = 0x80; col < cols; ++col) { + if (mask == 0x00) { + ++byteP; + mask = 0x80; + } + xelrow[col] = (*byteP & mask) ? one : zero; + mask = mask >> 1; + } + } break; + case 8: { + unsigned int col; + for (col = 0; col < cols; ++col) { + if (header.ras_maplength == 0) + PNM_ASSIGN1(xelrow[col], *byteP); + else if (grayscale) + PNM_ASSIGN1(xelrow[col], pr_colormap.map[0][*byteP]); + else + PPM_ASSIGN(xelrow[col], + pr_colormap.map[0][*byteP], + pr_colormap.map[1][*byteP], + pr_colormap.map[2][*byteP]); + ++byteP; + } + } break; + case 24: + case 32: { + unsigned int col; + for (col = 0; col < cols; ++col) { + xelval r, g, b; + + if (depth == 32) + ++byteP; + if (header.ras_type == RT_FORMAT_RGB) { + r = *byteP++; + g = *byteP++; + b = *byteP++; + } else { + b = *byteP++; + g = *byteP++; + r = *byteP++; + } + if (header.ras_maplength == 0) + PPM_ASSIGN(xelrow[col], r, g, b); + else + PPM_ASSIGN(xelrow[col], + pr_colormap.map[0][r], + pr_colormap.map[1][g], + pr_colormap.map[2][b]); + } + } break; default: - pm_error( "shouldn't happen" ); + pm_error("Invalid depth value: %u", depth); } - - for ( row = 0; row < rows; ++row ) - { - byteP = data; - switch ( depth ) - { - case 1: - mask = 0x80; - for ( col = 0, xP = xelrow; col < cols; ++col, ++xP ) - { - if ( mask == 0 ) - { - ++byteP; - mask = 0x80; - } - *xP = ( *byteP & mask ) ? one : zero; - mask = mask >> 1; - } - break; - - case 8: - for ( col = 0, xP = xelrow; col < cols; ++col, ++xP ) - { - if ( header.ras_maplength == 0 ) - PNM_ASSIGN1( *xP, *byteP ); - else if ( grayscale ) - PNM_ASSIGN1( *xP, pr_colormap.map[0][*byteP] ); - else - PPM_ASSIGN( - *xP, pr_colormap.map[0][*byteP], - pr_colormap.map[1][*byteP], - pr_colormap.map[2][*byteP] ); - ++byteP; - } - break; - - case 24: - case 32: - for ( col = 0, xP = xelrow; col < cols; ++col, ++xP ) - { - register xelval r, g, b; - - if ( depth == 32 ) - ++byteP; - if ( header.ras_type == RT_FORMAT_RGB ) - { - r = *byteP++; - g = *byteP++; - b = *byteP++; - } - else - { - b = *byteP++; - g = *byteP++; - r = *byteP++; - } - if ( header.ras_maplength == 0 ) - PPM_ASSIGN( *xP, r, g, b ); - else - PPM_ASSIGN( - *xP, pr_colormap.map[0][r], pr_colormap.map[1][g], - pr_colormap.map[2][b] ); - } - break; - - default: - pm_error( "can't happen" ); - } - data += linesize; - pnm_writepnmrow( stdout, xelrow, cols, maxval, format, 0 ); - } - - pm_close( stdout ); - - exit( 0 ); + data += linesize; + pnm_writepnmrow(stdout, xelrow, cols, maxval, format, 0); } + + pm_close(ifP); + pm_close(stdout); + + return 0; +} |