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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <dirent.h> |
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|
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#define ANIM_DIR "./anim" |
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#define POV_DIR "./pov" |
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|
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|
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char *program_name; |
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void usage(void); |
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int isNumber( char c ); |
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|
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int main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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|
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int i, j, k; /*loop counters */ |
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mode_t dir_mode = S_IRWXU; |
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|
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char pov_flags[120] = ""; /*flags to be placed on the povray command line */ |
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char *prefix = NULL; /*the prefix for the input and output files */ |
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int start_frame = 0; /*the start frame */ |
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int in_frame; /*the current in frame we're working with. */ |
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int out_frame; /*the current out frame were working with */ |
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int end_frame; /*the end frame */ |
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short is_end_frame = 0; /*tells us to stop before we run out of pov files */ |
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int in_file_exists = 0; /*lets us know if the in_file exists */ |
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int compression = 0; /* boolean for toggling the compression flag */ |
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int duplicate = 0; /* boolean to turn on duplicate frames */ |
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int n_duplicates = 0; /* the number of duplicate frames */ |
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int done; |
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|
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char current_flag; |
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|
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char command[1000]; |
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char pov_dir[500]; |
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char anim_dir[500]; |
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char out_format[500]; |
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char in_format[500]; |
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char in_name[5000]; |
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char out_name[500]; |
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char out_name2[5000]; |
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|
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DIR *theDir; |
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struct dirent *dirEntry; |
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int nFrames; |
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size_t prefixLength; |
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double count; |
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int out_count; |
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int in_count; |
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char test_c; |
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|
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|
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program_name = argv[0]; /*save the program name in case we need it*/ |
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|
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|
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|
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for( i = 1; i < argc; i++){ |
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|
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if(argv[i][0] =='-'){ |
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|
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// parse the option |
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|
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if(argv[i][1] == '-' ){ |
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|
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// parse long word options |
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|
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fprintf( stderr, |
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"Invalid option \"%s\"\n", argv[i] ); |
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usage(); |
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|
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} |
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|
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else{ |
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|
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// parse single character options |
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|
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done = 0; |
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j = 1; |
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current_flag = argv[i][j]; |
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while( (current_flag != '\0') && (!done) ){ |
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|
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switch(current_flag){ |
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|
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case 'c': |
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// -c => turn on the compression flag for x-povray |
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|
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compression = 1; |
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strcat(pov_flags, " +FP "); |
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break; |
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|
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case 'd': |
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// -d <#> => duplicate the frames |
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|
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duplicate = 1; |
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i++; |
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n_duplicates = atoi(argv[i]); |
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done =1; |
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break; |
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|
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|
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|
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case 'f': |
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// -f <#> => tells us the final frame |
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|
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is_end_frame = 1; |
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i++; |
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end_frame = atoi(argv[i]); |
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done=1; |
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break; |
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|
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case 's': |
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// -s <#> => tells the start frame |
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|
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i++; |
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start_frame = atoi(argv[i]); |
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done=1; |
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break; |
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|
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case 'F': |
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// -F <flags> => The flag arguments to be passed to x-povray |
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|
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i++; |
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strcat(pov_flags, argv[i]); |
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done=1; |
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break; |
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|
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default: |
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|
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(void)fprintf(stderr, "Bad option \"-%c\"\n", current_flag); |
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usage(); |
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} |
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j++; |
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current_flag = argv[i][j]; |
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} |
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} |
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} |
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|
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else{ |
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|
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if( prefix != NULL ){ |
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fprintf( stderr, |
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"Error at \"%s\", program does not currently support\n" |
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"more than one prefix.\n" |
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"\n", |
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argv[i]); |
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usage(); |
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} |
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|
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prefix = argv[i]; |
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} |
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} |
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|
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|
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if(prefix == NULL){ |
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usage(); |
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} |
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|
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|
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if(access(ANIM_DIR, F_OK)){ |
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/*create the anim directory*/ |
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mkdir(ANIM_DIR, dir_mode); |
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} |
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|
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strcpy(anim_dir, ANIM_DIR); strcat(anim_dir, "/"); |
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strcpy(pov_dir, POV_DIR); strcat(pov_dir, "/"); |
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|
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// find the number of digits to output |
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|
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nFrames = 0; |
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if( is_end_frame ){ |
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nFrames = end_frame - start_frame; |
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} |
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else{ |
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|
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theDir = opendir( POV_DIR ); |
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dirEntry = readdir( theDir ); |
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prefixLength = strlen( prefix ); |
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while( dirEntry != NULL ){ |
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|
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if( !strncmp( dirEntry->d_name, prefix, prefixLength ) ) nFrames++; |
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|
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dirEntry = readdir( theDir ); |
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} |
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closedir( theDir ); |
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} |
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|
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out_count = 1; |
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count = (double)( nFrames * (n_duplicates+1) ); |
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while( count >= 10.0 ){ |
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count /= 10.0; |
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out_count++; |
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} |
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|
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// how many padded digits are there for the input |
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|
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theDir = opendir( POV_DIR ); |
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dirEntry = readdir( theDir ); |
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prefixLength = strlen( prefix ); |
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while( dirEntry != NULL ){ |
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|
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in_count = 0; |
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if( !strncmp( dirEntry->d_name, prefix, prefixLength ) ){ |
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|
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i = prefixLength; |
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test_c = dirEntry->d_name[i]; |
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while( isNumber( test_c ) ){ |
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|
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in_count++; |
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i++; |
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test_c = dirEntry->d_name[i]; |
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} |
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break; |
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} |
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|
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dirEntry = readdir( theDir ); |
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} |
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closedir( theDir ); |
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|
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|
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strcpy(in_name, pov_dir); |
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strcpy(out_name, anim_dir); |
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|
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sprintf( in_format, "%s%s%%0%dd.pov", pov_dir, prefix, in_count ); |
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|
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sprintf( out_format, "%s%s%%0%dd", anim_dir, prefix, out_count ); |
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if(compression) strcat(out_format, ".ppm"); |
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else strcat(out_format, ".tga"); |
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|
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in_frame = start_frame; |
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out_frame = 0; |
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|
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if(access(ANIM_DIR, F_OK)){ |
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/*create the anim directory*/ |
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mkdir(ANIM_DIR, dir_mode); |
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} |
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|
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|
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sprintf( in_name, in_format, in_frame ); |
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sprintf( out_name, out_format, out_frame ); |
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|
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in_file_exists = !access(in_name, F_OK); |
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|
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if( is_end_frame ){ |
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|
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while( (in_frame <= end_frame) && in_file_exists ){ |
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|
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|
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sprintf(command, "x-povray +I %s +O %s %s", |
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in_name, out_name, pov_flags); |
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system(command); |
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|
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if(duplicate){ |
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for(k = 0; k < n_duplicates; k++){ |
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out_frame++; |
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|
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sprintf( out_name2, out_format, out_frame ); |
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sprintf(command, "cp %s %s", out_name, out_name2); |
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system(command); |
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} |
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} |
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|
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in_frame++; |
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out_frame++; |
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|
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sprintf( in_name, in_format, in_frame ); |
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sprintf( out_name, out_format, out_frame ); |
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|
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in_file_exists = !access(in_name, F_OK); |
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} |
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} |
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else{ |
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|
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while( in_file_exists ){ |
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|
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|
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sprintf(command, "x-povray +I %s +O %s %s", |
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in_name, out_name, pov_flags); |
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system(command); |
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|
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if(duplicate){ |
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for(k = 0; k < n_duplicates; k++){ |
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out_frame++; |
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|
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sprintf( out_name2, out_format, out_frame ); |
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sprintf(command, "cp %s %s", out_name, out_name2); |
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system(command); |
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} |
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} |
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|
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in_frame++; |
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out_frame++; |
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|
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sprintf( in_name, in_format, in_frame ); |
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sprintf( out_name, out_format, out_frame ); |
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|
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in_file_exists = !access(in_name, F_OK); |
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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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|
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|
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|
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/*************************************************************************** |
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* prints out the usage for the command line arguments, then exits. |
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***************************************************************************/ |
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|
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void usage(){ |
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(void)fprintf(stderr, |
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"The proper usage is: %s [options] <pov_prefix>\n\n" |
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"Options:\n" |
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" -c turns on compression for x-povray\n" |
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" -d <#> turns on and duplicates the number of frames\n" |
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" -s <#> the starting frame number\n" |
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" -f <#> the final frame number\n" |
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" -F \"<povray flags>\"\n" |
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" flags to pass to x-povray\n" |
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|
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"\n", |
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program_name); |
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exit(8); |
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} |
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|
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|
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int isNumber( char c ){ |
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|
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if( c == '0') return 1; |
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else if( c == '1') return 1; |
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else if( c == '2') return 1; |
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else if( c == '3') return 1; |
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else if( c == '4') return 1; |
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else if( c == '5') return 1; |
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else if( c == '6') return 1; |
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else if( c == '7') return 1; |
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else if( c == '8') return 1; |
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else if( c == '9') return 1; |
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|
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return 0; |
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} |
