1.1 diff -r 7a996a86036d -r bb180150e603 bitblt.c 1.2 --- a/bitblt.c Wed Feb 19 10:15:16 2003 +0000 1.3 +++ b/bitblt.c Wed Feb 19 10:14:49 2003 +0000 1.4 @@ -1,3 +1,29 @@ 1.5 +/* 1.6 + * t2p: Create a PDF file from the contents of one or more TIFF 1.7 + * bilevel image files. The images in the resulting PDF file 1.8 + * will be compressed using ITU-T T.6 (G4) fax encoding. 1.9 + * 1.10 + * bitblt routines 1.11 + * $Id: bitblt.c,v 1.11 2003/02/19 02:14:44 eric Exp $ 1.12 + * Copyright 2001, 2002, 2003 Eric Smith <eric@brouhaha.com> 1.13 + * 1.14 + * This program is free software; you can redistribute it and/or modify 1.15 + * it under the terms of the GNU General Public License version 2 as 1.16 + * published by the Free Software Foundation. Note that permission is 1.17 + * not granted to redistribute this program under the terms of any 1.18 + * other version of the General Public License. 1.19 + * 1.20 + * This program is distributed in the hope that it will be useful, 1.21 + * but WITHOUT ANY WARRANTY; without even the implied warranty of 1.22 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1.23 + * GNU General Public License for more details. 1.24 + * 1.25 + * You should have received a copy of the GNU General Public License 1.26 + * along with this program; if not, write to the Free Software 1.27 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA 1.28 + */ 1.29 + 1.30 + 1.31 #include <stdbool.h> 1.32 #include <stdint.h> 1.33 #include <assert.h> 1.34 @@ -7,45 +33,10 @@ 1.35 1.36 #include "bitblt.h" 1.37 1.38 - 1.39 -#define DIV_ROUND_UP(count,pow2) (((count) - 1) / (pow2) + 1) 1.40 +#include "bitblt_tables.h" 1.41 1.42 1.43 -static const uint8_t bit_reverse_byte [0x100] = 1.44 -{ 1.45 - 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 1.46 - 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, 1.47 - 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 1.48 - 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 1.49 - 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 1.50 - 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, 1.51 - 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 1.52 - 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 1.53 - 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 1.54 - 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, 1.55 - 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 1.56 - 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 1.57 - 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 1.58 - 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, 1.59 - 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 1.60 - 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 1.61 - 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 1.62 - 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, 1.63 - 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 1.64 - 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 1.65 - 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 1.66 - 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 1.67 - 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 1.68 - 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 1.69 - 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 1.70 - 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 1.71 - 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 1.72 - 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, 1.73 - 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 1.74 - 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 1.75 - 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 1.76 - 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff 1.77 -}; 1.78 +#define DIV_ROUND_UP(count,pow2) (((count) - 1) / (pow2) + 1) 1.79 1.80 1.81 void reverse_bits (uint8_t *p, int byte_count) 1.82 @@ -733,3 +724,8 @@ 1.83 transpose (src); 1.84 flip_v (src); 1.85 } 1.86 + 1.87 + 1.88 +void bitblt_init (void) 1.89 +{ 1.90 +}