From b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 Mon Sep 17 00:00:00 2001 From: Mike Gabriel Date: Mon, 2 Feb 2015 15:02:49 +0100 Subject: massive reduction of unneeded files --- nx-X11/lib/lbxutil/image/efaxg42d.c | 328 ------------------------------------ 1 file changed, 328 deletions(-) delete mode 100644 nx-X11/lib/lbxutil/image/efaxg42d.c (limited to 'nx-X11/lib/lbxutil/image/efaxg42d.c') diff --git a/nx-X11/lib/lbxutil/image/efaxg42d.c b/nx-X11/lib/lbxutil/image/efaxg42d.c deleted file mode 100644 index a89b5e0d2..000000000 --- a/nx-X11/lib/lbxutil/image/efaxg42d.c +++ /dev/null @@ -1,328 +0,0 @@ -/* $Xorg: efaxg42d.c,v 1.3 2000/08/17 19:46:41 cpqbld Exp $ */ -/* - * Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler - * Copyright (c) 1991, 1992 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ -/* $XFree86: xc/lib/lbxutil/image/efaxg42d.c,v 1.4 2001/01/17 19:43:35 dawes Exp $ */ - -#include -#include -#include -#include "lbxfax.h" -#include -#include "lbxbwcodes.h" - -/* - * ------------------------------------------------------------------------- - * FAX G42D encoding for 1 bit images - * ------------------------------------------------------------------------- - */ - -static short sp_data, sp_bit; - -static tableentry horizcode = - { 3, 0x1 }; /* 001 */ - -static tableentry passcode = - { 4, 0x1 }; /* 0001 */ - -static tableentry vcodes[7] = { - { 7, 0x03 }, /* 0000 011 */ - { 6, 0x03 }, /* 0000 11 */ - { 3, 0x03 }, /* 011 */ - { 1, 0x1 }, /* 1 */ - { 3, 0x2 }, /* 010 */ - { 6, 0x02 }, /* 0000 10 */ - { 7, 0x02 } /* 0000 010 */ -}; - -typedef struct { - unsigned char *bufStart; - unsigned char *bufPtr; - int bufSize; - int bytesLeft; -} Buffer; - - - -/* - * Flush bits to output buffer. - */ - -static int -flushbits (Buffer *outbuf) - -{ - if (outbuf->bytesLeft > 0) - { - *(outbuf->bufPtr++) = sp_data; - outbuf->bytesLeft--; - - sp_data = 0; - sp_bit = 8; - - return (1); - } - else - return (0); -} - - -/* - * Write a variable-length bit-value to the output stream. Values are - * assumed to be at most 16 bits. - */ - -static int -putbits (unsigned int bits, - unsigned int length, - Buffer *outbuf) - -{ - static int mask[9] = - {0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff}; - - while (length > sp_bit) - { - sp_data |= bits >> (length - sp_bit); - length -= sp_bit; - if (!flushbits (outbuf)) - return (0); - } - - sp_data |= (bits & mask[length]) << (sp_bit - length); - sp_bit -= length; - - if (sp_bit == 0) - { - if (!flushbits (outbuf)) - return (0); - } - - return (1); -} - - -/* - * Write a code to the output stream. - */ - -static int -putcode (tableentry *te, - Buffer *outbuf) - -{ - return (putbits (te->code, te->length, outbuf)); -} - - -/* - * Write the sequence of codes that describes the specified span of - * zero's or one's. The appropriate table that holds the make-up and - * terminating codes is supplied. - */ - -static int -putspan (int span, - tableentry *tab, - Buffer *outbuf) - -{ - while (span >= 2624) - { - tableentry *te = &tab[63 + (2560 >> 6)]; - if (!putcode (te, outbuf)) - return (0); - span -= te->runlen; - } - - if (span >= 64) - { - tableentry *te = &tab[63 + (span >> 6)]; - if (!putcode (te, outbuf)) - return (0); - span -= te->runlen; - } - - if (!putcode (&tab[span], outbuf)) - return (0); - - return (1); -} - - - -#define PIXEL(buf,ix) ((((buf)[(ix)>>3]) >> (7-((ix)&7))) & 1) - -static int -EncodeFaxG42D (unsigned char *inbuf, - unsigned char *refline, - int bits, - Buffer *outbuf) - -{ - short white = 1; - int a0 = 0; - int a1 = (PIXEL (inbuf, 0) != white ? - 0 : LbxImageFindDiff (inbuf, 0, bits, white)); - int b1 = (PIXEL (refline, 0) != white ? - 0 : LbxImageFindDiff (refline, 0, bits, white)); - int a2, b2; - - for (;;) - { - b2 = LbxImageFindDiff (refline, b1, bits, PIXEL (refline, b1)); - if (b2 >= a1) - { - int d = b1 - a1; - if (!(-3 <= d && d <= 3)) - { - /* horizontal mode */ - - a2 = LbxImageFindDiff (inbuf, a1, bits, PIXEL (inbuf, a1)); - if (!putcode (&horizcode, outbuf)) - return (0); - - if (a0 + a1 == 0 || PIXEL (inbuf, a0) == white) - { - if (!putspan(a1 - a0, TIFFFaxWhiteCodes, outbuf)) - return (0); - if (!putspan(a2 - a1, TIFFFaxBlackCodes, outbuf)) - return (0); - } - else - { - if (!putspan (a1 - a0, TIFFFaxBlackCodes, outbuf)) - return (0); - if (!putspan (a2 - a1, TIFFFaxWhiteCodes, outbuf)) - return (0); - } - - a0 = a2; - } - else - { - /* vertical mode */ - - if (!putcode (&vcodes[d+3], outbuf)) - return (0); - a0 = a1; - } - } - else - { - /* pass mode */ - - if (!putcode (&passcode, outbuf)) - return (0); - a0 = b2; - } - - if (a0 >= bits) - break; - - a1 = LbxImageFindDiff (inbuf, a0, bits, PIXEL (inbuf, a0)); - b1 = LbxImageFindDiff (refline, a0, bits, !PIXEL (inbuf, a0)); - b1 = LbxImageFindDiff (refline, b1, bits, PIXEL (inbuf, a0)); - } - - return (1); -} - - -int -LbxImageEncodeFaxG42D (unsigned char *inbuf, - unsigned char *outbuf, - int outbufSize, - int image_bytes, - int pixels_per_line, - int padded_bytes_per_scanline, - int reverse_bits, - int *bytesCompressed) - -{ - int bytes_per_scanline = ROUNDUP8 (pixels_per_line); - unsigned char *refline, *refptr; - unsigned char *save_inbuf = inbuf; - int bytes_left = image_bytes; - Buffer OutBuf; - int status, i; - - OutBuf.bufStart = OutBuf.bufPtr = outbuf; - OutBuf.bufSize = OutBuf.bytesLeft = outbufSize; - - if (!(refline = (unsigned char *) malloc (bytes_per_scanline + 1))) - return (LBX_IMAGE_COMPRESS_BAD_MALLOC); - - refptr = refline + 1; - - for (i = 0; i < bytes_per_scanline + 1; i++) - refline[i] = 0xff; - - if (reverse_bits) - LbxReverseBits (inbuf, image_bytes); - - sp_bit = 8; - sp_data = 0; - - while (bytes_left > 0) - { - if (!(status = EncodeFaxG42D (inbuf, refptr, - pixels_per_line, &OutBuf))) - { - goto bad; - } - - memcpy (refptr, inbuf, bytes_per_scanline); - - inbuf += padded_bytes_per_scanline; - bytes_left -= padded_bytes_per_scanline; - } - - status = putbits (EOL, 12, &OutBuf); - if (status) - status = putbits (EOL, 12, &OutBuf); - if (status && sp_bit != 8) - { - status = flushbits (&OutBuf); - } - - bad: - - free ((char *) refline); - - /* put the bits back the way they were */ - if (reverse_bits) - LbxReverseBits (save_inbuf, image_bytes); - - if (status) - { - *bytesCompressed = OutBuf.bufPtr - OutBuf.bufStart; - - if (OutBuf.bytesLeft > 0) - return (LBX_IMAGE_COMPRESS_SUCCESS); - else - return (LBX_IMAGE_COMPRESS_NOT_WORTH_IT); - } - else - return (LBX_IMAGE_COMPRESS_NOT_WORTH_IT); -} -- cgit v1.2.3