diff options
author | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-02-24 17:43:19 +0000 |
---|---|---|
committer | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-02-24 17:43:19 +0000 |
commit | 0292059f4a16434600564cfa3f0ad2309a508a54 (patch) | |
tree | d95953cd53011917c4df679b96aedca39401b54f /kernel/kls_xcf/xcf2pnm/xcf2pnm.c | |
download | libksquirrel-0292059f4a16434600564cfa3f0ad2309a508a54.tar.gz libksquirrel-0292059f4a16434600564cfa3f0ad2309a508a54.zip |
Added libksquirrel for KDE3
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/libraries/libksquirrel@1095624 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kernel/kls_xcf/xcf2pnm/xcf2pnm.c')
-rw-r--r-- | kernel/kls_xcf/xcf2pnm/xcf2pnm.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/kernel/kls_xcf/xcf2pnm/xcf2pnm.c b/kernel/kls_xcf/xcf2pnm/xcf2pnm.c new file mode 100644 index 0000000..06baf8d --- /dev/null +++ b/kernel/kls_xcf/xcf2pnm/xcf2pnm.c @@ -0,0 +1,269 @@ +/* Convert xcf files to ppm + * + * Copyright (C) 2006 Henning Makholm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "xcftools.h" +#include "flatten.h" +#include <stdlib.h> +#include <string.h> +#include <locale.h> +#include <ctype.h> +#if HAVE_GETOPT_H +#include <getopt.h> +#else +#include <unistd.h> +#endif +#ifndef HAVE_GETOPT_LONG +#define getopt_long(argc,argv,optstring,l1,l2) getopt(argc,argv,optstring) +#endif + +#include "xcf2pnm.oi" + +static int suppress_byline ; +static struct FlattenSpec flatspec ; +static FILE *outfile = NULL ; +static FILE *transfile = NULL ; + +static void +start_writing(FILE **f,int version) +{ + const char *format[] = {"(format zero)", + "PBM-ascii", + "PGM-ascii", + "PPM-ascii", + "PBM", + "PGM", + "PPM" }; + + if( verboseFlag ) + fprintf(stderr,f == &outfile ? _("Writing converted image as %s\n") + : _("Writing transparency map as %s\n"), + format[version]); + + *f = openout( f == &outfile ? flatspec.output_filename + : flatspec.transmap_filename ); + fprintf(*f,"P%d",version); + if( suppress_byline ) + ; + else if( f == &outfile ) + fprintf(*f,_(" # Converted by xcf2pnm %s"),PACKAGE_VERSION); + else + fprintf(*f,_(" # Transparency map by xcf2pnm %s"),PACKAGE_VERSION); + fprintf(*f,"\n%d %d\n%s", + flatspec.dim.width, + flatspec.dim.height, + version == 4 ? "" : "255\n"); +} + +int +put_pbm_row(FILE *file,unsigned num,rgba *pixels,rgba mask); + +int +put_pbm_row(FILE *file,unsigned num,rgba *pixels,rgba mask) { + unsigned out ; + unsigned i ; + int bitsleft = 8 ; + out = 0 ; + for( i=0; i<num; i++ ) { + out <<= 1 ; + if( (pixels[i] & mask) == 0 ) + out++ ; /* 1 is black */ + else if( (pixels[i] & mask) == mask ) + ; /* 0 is white */ + else + return 0 ; + if( --bitsleft == 0 ) { + putc( out, file ); + out = 0 ; + bitsleft = 8 ; + } + } + if( bitsleft < 8 ) + putc( out << bitsleft, file ); + return 1 ; +} + +static void +callback_common(unsigned num,rgba *pixels) +{ + if( flatspec.transmap_filename ) { + if( flatspec.partial_transparency_mode == ALLOW_PARTIAL_TRANSPARENCY ) { + unsigned i ; + if( transfile == NULL ) start_writing(&transfile,5); + for( i=0; i < num; i++ ) + putc( ALPHA(pixels[i]), transfile ); + } else { + if( transfile == NULL ) { + start_writing(&transfile,4); + } + /* Partial transparency should have been caught in the flattener, + * so just extract a single byte. + */ + put_pbm_row(transfile,num,pixels,(rgba)1 << ALPHA_SHIFT); + } + } else if( ALPHA(flatspec.default_pixel) < 128 ) { + unsigned i ; + for( i=0; i < num; i++ ) + if( !FULLALPHA(pixels[i]) ) + FatalGeneric(100,_("Transparency found, but -a option not given")); + } + xcffree(pixels) ; +} + +static void +ppm_callback(unsigned num,rgba *pixels) +{ + unsigned i ; + if( outfile == NULL ) start_writing(&outfile,6); + for( i=0; i < num; i++ ) { + putc( (pixels[i] >> RED_SHIFT) & 0xFF , outfile ); + putc( (pixels[i] >> GREEN_SHIFT) & 0xFF , outfile ); + putc( (pixels[i] >> BLUE_SHIFT) & 0xFF , outfile ); + } + callback_common(num,pixels); +} + +static void +pgm_callback(unsigned num,rgba *pixels) +{ + unsigned i ; + if( outfile == NULL ) start_writing(&outfile,5); + for( i=0; i < num; i++ ) { + int gray = degrayPixel(pixels[i]) ; + if( gray == -1 ) + FatalGeneric(103, + _("Grayscale output selected, but colored pixel(s) found")); + putc( gray, outfile ); + } + callback_common(num,pixels); +} + +static void +pbm_callback(unsigned num,rgba *pixels) +{ + if( outfile == NULL ) start_writing(&outfile,4); + if( !put_pbm_row(outfile,num,pixels, + ((rgba)255 << RED_SHIFT) + + ((rgba)255 << GREEN_SHIFT) + + ((rgba)255 << BLUE_SHIFT)) ) + FatalGeneric(103,_("Monochrome output selected, but not all pixels " + "are black or white")); + callback_common(num,pixels); +} + +static enum out_color_mode +guess_color_mode(const char *string) +{ + if( strlen(string) >= 3 ) { + string += strlen(string)-3 ; + if( strcmp(string,"ppm")==0 ) return COLOR_RGB ; + if( strcmp(string,"pgm")==0 ) return COLOR_GRAY ; + if( strcmp(string,"pbm")==0 ) return COLOR_MONO ; + } + return COLOR_BY_FILENAME ; +} + +static lineCallback +selectCallback(void) +{ + if( flatspec.transmap_filename && ALPHA(flatspec.default_pixel) >= 128 ) + FatalGeneric(101,_("The -a option was given, " + "but the image has no transparency")); + + switch( flatspec.out_color_mode ) { + default: + case COLOR_RGB: return &ppm_callback ; + case COLOR_GRAY: return &pgm_callback ; + case COLOR_MONO: return &pbm_callback ; + } +} + +int +main(int argc,char **argv) +{ + int option ; + const char *unzipper = NULL ; + const char *infile = NULL ; + + setlocale(LC_ALL,""); + progname = argv[0] ; + nls_init(); + + if( argc <= 1 ) gpl_blurb() ; + + init_flatspec(&flatspec) ; + flatspec.out_color_mode = COLOR_BY_FILENAME ; + while( (option=getopt_long(argc,argv,"-@#"OPTSTRING,longopts,NULL)) >= 0 ) + switch(option) { + +#define OPTION(char,long,desc,man) case char: +#include "options.i" + + case 1: + if( infile ) + add_layer_request(&flatspec,optarg); + else + infile = optarg ; + break ; + case '?': + exit(1); + case '@': + /* Non-documented option for build-time test */ + suppress_byline = 1 ; + break ; + case '#': + /* Non-documented option for xcfview */ + flatspec.default_pixel = CHECKERED_BACKGROUND ; + break ; + default: + FatalUnexpected("Getopt(_long) unexpectedly returned '%c'",option); + } + if( infile == NULL ) { + exit(1); + } + + if( flatspec.out_color_mode == COLOR_BY_FILENAME && + strlen(flatspec.output_filename) > 4 && + flatspec.output_filename[strlen(flatspec.output_filename)-4] == '.' ) + flatspec.out_color_mode = guess_color_mode(flatspec.output_filename); + + /* If the output filename was not enough cue, see if we're running + * through a symlink/hardlink that gives the required output format + */ + if( flatspec.out_color_mode == COLOR_BY_FILENAME && + strlen(progname) > 3 ) + flatspec.out_color_mode = guess_color_mode(progname); + + if( flatspec.out_color_mode == COLOR_BY_FILENAME ) + flatspec.out_color_mode = COLOR_BY_CONTENTS ; + + read_or_mmap_xcf(infile,unzipper); + getBasicXcfInfo() ; + initColormap(); + + complete_flatspec(&flatspec,NULL); + if( flatspec.process_in_memory ) { + rgba **allPixels = flattenAll(&flatspec); + analyse_colormode(&flatspec,allPixels,NULL); + shipoutWithCallback(&flatspec,allPixels,selectCallback()); + } else { + flattenIncrementally(&flatspec,selectCallback()); + } + closeout(outfile,flatspec.output_filename) ; + closeout(transfile,flatspec.transmap_filename) ; + return 0 ; +} |