diff options
Diffstat (limited to 'editor/specialty/pbmlife.c')
| -rw-r--r-- | editor/specialty/pbmlife.c | 114 |
1 files changed, 57 insertions, 57 deletions
diff --git a/editor/specialty/pbmlife.c b/editor/specialty/pbmlife.c index be34cc69..03735d58 100644 --- a/editor/specialty/pbmlife.c +++ b/editor/specialty/pbmlife.c @@ -31,12 +31,12 @@ char* argv[]; pbm_init( &argc, argv ); if ( argc > 2 ) - pm_usage( "[pbmfile]" ); + pm_usage( "[pbmfile]" ); if ( argc == 2 ) - ifp = pm_openr( argv[1] ); + ifp = pm_openr( argv[1] ); else - ifp = stdin; + ifp = stdin; pbm_readpbminit( ifp, &cols, &rows, &format ); prevrow = pbm_allocrow( cols ); @@ -49,63 +49,63 @@ char* argv[]; pbm_readpbmrow( ifp, nextrow, cols, format ); for ( row = 0; row < rows; ++row ) - { - temprow = prevrow; - prevrow = thisrow; - thisrow = nextrow; - nextrow = temprow; - if ( row < rows - 1 ) - pbm_readpbmrow( ifp, nextrow, cols, format ); + { + temprow = prevrow; + prevrow = thisrow; + thisrow = nextrow; + nextrow = temprow; + if ( row < rows - 1 ) + pbm_readpbmrow( ifp, nextrow, cols, format ); for ( col = 0; col < cols; ++col ) - { - /* Check the neighborhood, with an unrolled double loop. */ - count = 0; - if ( row > 0 ) - { - /* upper left */ - if ( col > 0 && prevrow[col - 1] == PBM_WHITE ) - ++count; - /* upper center */ - if ( prevrow[col] == PBM_WHITE ) - ++count; - /* upper right */ - if ( col < cols - 1 && prevrow[col + 1] == PBM_WHITE ) - ++count; - } - /* left */ - if ( col > 0 && thisrow[col - 1] == PBM_WHITE ) - ++count; - /* right */ - if ( col < cols - 1 && thisrow[col + 1] == PBM_WHITE ) - ++count; - if ( row < rows - 1 ) - { - /* lower left */ - if ( col > 0 && nextrow[col - 1] == PBM_WHITE ) - ++count; - /* lower center */ - if ( nextrow[col] == PBM_WHITE ) - ++count; - /* lower right */ - if ( col < cols - 1 && nextrow[col + 1] == PBM_WHITE ) - ++count; - } + { + /* Check the neighborhood, with an unrolled double loop. */ + count = 0; + if ( row > 0 ) + { + /* upper left */ + if ( col > 0 && prevrow[col - 1] == PBM_WHITE ) + ++count; + /* upper center */ + if ( prevrow[col] == PBM_WHITE ) + ++count; + /* upper right */ + if ( col < cols - 1 && prevrow[col + 1] == PBM_WHITE ) + ++count; + } + /* left */ + if ( col > 0 && thisrow[col - 1] == PBM_WHITE ) + ++count; + /* right */ + if ( col < cols - 1 && thisrow[col + 1] == PBM_WHITE ) + ++count; + if ( row < rows - 1 ) + { + /* lower left */ + if ( col > 0 && nextrow[col - 1] == PBM_WHITE ) + ++count; + /* lower center */ + if ( nextrow[col] == PBM_WHITE ) + ++count; + /* lower right */ + if ( col < cols - 1 && nextrow[col + 1] == PBM_WHITE ) + ++count; + } - /* And compute the new value. */ - if ( thisrow[col] == PBM_WHITE ) - if ( count == 2 || count == 3 ) - newrow[col] = PBM_WHITE; - else - newrow[col] = PBM_BLACK; - else - if ( count == 3 ) - newrow[col] = PBM_WHITE; - else - newrow[col] = PBM_BLACK; - } - pbm_writepbmrow( stdout, newrow, cols, 0 ); - } + /* And compute the new value. */ + if ( thisrow[col] == PBM_WHITE ) + if ( count == 2 || count == 3 ) + newrow[col] = PBM_WHITE; + else + newrow[col] = PBM_BLACK; + else + if ( count == 3 ) + newrow[col] = PBM_WHITE; + else + newrow[col] = PBM_BLACK; + } + pbm_writepbmrow( stdout, newrow, cols, 0 ); + } pm_close( ifp ); pm_close( stdout ); |