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-rw-r--r--indexer_JPIP/bio.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/indexer_JPIP/bio.c b/indexer_JPIP/bio.c
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--- a/indexer_JPIP/bio.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright (c) 2001-2002, David Janssens
- * Copyright (c) 2003, Yannick Verschueren
- * Copyright (c) 2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "bio.h"
-#include <setjmp.h>
-
-static unsigned char *bio_start, *bio_end, *bio_bp;
-static unsigned int bio_buf;
-static int bio_ct;
-
-extern jmp_buf j2k_error;
-
-/// <summary>
-/// Number of bytes written.
-/// </summary>
-int bio_numbytes() {
- return bio_bp-bio_start;
-}
-
-/// <summary>
-/// Init decoder.
-/// </summary>
-/// <param name="bp">Input buffer</param>
-/// <param name="len">Input buffer length</param>
-void bio_init_dec(unsigned char *bp, int len) {
- bio_start=bp;
- bio_end=bp+len;
- bio_bp=bp;
- bio_buf=0;
- bio_ct=0;
-}
-
-int bio_byteout()
-{
- bio_buf = (bio_buf << 8) & 0xffff;
- bio_ct = bio_buf == 0xff00 ? 7 : 8;
- if (bio_bp >= bio_end)
- return 1;
- *bio_bp++ = bio_buf >> 8;
- return 0;
-}
-
-/// <summary>
-/// Read byte.
-/// </summary>
-int bio_bytein() {
- bio_buf=(bio_buf<<8)&0xffff;
- bio_ct=bio_buf==0xff00?7:8;
- if (bio_bp>=bio_end) return 1; //longjmp(j2k_error, 1);
- bio_buf|=*bio_bp++;
- return 0;
-}
-
-/// <summary>
-/// Read bit.
-/// </summary>
-int bio_getbit() {
- if (bio_ct==0) {
- bio_bytein();
- }
- bio_ct--;
- return (bio_buf>>bio_ct)&1;
-}
-
-/// <summary>
-/// Read bits.
-/// </summary>
-/// <param name="n">Number of bits to read</param>
-int bio_read(int n) {
- int i, v;
- v=0;
- for (i=n-1; i>=0; i--) {
- v+=bio_getbit()<<i;
- }
- return v;
-}
-
-/// <summary>
-/// Flush bits.
-/// </summary>
-int bio_flush() {
- bio_ct=0;
- bio_byteout();
- if (bio_ct==7) {
- bio_ct=0;
- if ( bio_byteout()) return 1;;
- }
- return 0;
-}
-
-/// <summary>
-/// </summary>
-int bio_inalign() {
- bio_ct=0;
- if ((bio_buf&0xff)==0xff) {
- if( bio_bytein()) return 1;
- bio_ct=0;
- }
- return 0;
-}