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authorno_author <no_author@no_author>2004-02-17 16:33:43 +0000
committerno_author <no_author@no_author>2004-02-17 16:33:43 +0000
commit650f1910d74d8453bcad055651e270c9a18b1e3e (patch)
tree898e698eee2681be088ec5967847ac022b435217 /libopenjpeg/bio.c
parente798d3f348e4b188c290cdf87116a3aa56cda37f (diff)
This commit was manufactured by cvs2svn to create branch 'j2kviewer'.j2kviewer
Diffstat (limited to 'libopenjpeg/bio.c')
-rw-r--r--libopenjpeg/bio.c194
1 files changed, 0 insertions, 194 deletions
diff --git a/libopenjpeg/bio.c b/libopenjpeg/bio.c
deleted file mode 100644
index 45e875f1..00000000
--- a/libopenjpeg/bio.c
+++ /dev/null
@@ -1,194 +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 <stdio.h>
-#include <setjmp.h>
-
-static unsigned char *bio_start; /* pointer to the start of the buffer */
-static unsigned char *bio_end; /* pointer to the end of the buffer */
-static unsigned char *bio_bp; /* pointer to the present position in the buffer */
-static unsigned int bio_buf; /* temporary place where each byte is read or written */
-static int bio_ct; /* coder : number of bits free to write // decoder : number of bits read */
-
-extern jmp_buf j2k_error;
-
-/*
- * Number of bytes written.
- */
-int bio_numbytes()
-{
- return bio_bp - bio_start;
-}
-
-/*
- * Init encoder.
- *
- * bp : Output buffer
- * len : Output buffer length
- */
-void bio_init_enc(unsigned char *bp, int len)
-{
- bio_start = bp;
- bio_end = bp + len;
- bio_bp = bp;
- bio_buf = 0;
- bio_ct = 8;
-}
-
-/*
- * Init decoder.
- *
- * bp : Input buffer
- * len : Input buffer length
- */
-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;
-}
-
-/*
- * Write byte. --> function modified to eliminate longjmp !!!
- *
- */
-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;
-}
-
-/*
- * Read byte. --> function modified to eliminate longjmp !!
- *
- */
-int bio_bytein()
-{
- bio_buf = (bio_buf << 8) & 0xffff;
- bio_ct = bio_buf == 0xff00 ? 7 : 8;
- if (bio_bp >= bio_end)
- return 1;
- bio_buf |= *bio_bp++;
- return 0;
-}
-
-/*
- * Write bit.
- *
- * b : Bit to write (0 or 1)
- */
-void bio_putbit(int b)
-{
- if (bio_ct == 0) {
- bio_byteout();
- }
- bio_ct--;
- bio_buf |= b << bio_ct;
-}
-
-/*
- * Read bit.
- *
- */
-int bio_getbit()
-{
- if (bio_ct == 0) {
- bio_bytein();
- }
- bio_ct--;
- return (bio_buf >> bio_ct) & 1;
-}
-
-/*
- * Write bits.
- *
- * v : Value of bits
- * n : Number of bits to write
- */
-void bio_write(int v, int n)
-{
- int i;
- for (i = n - 1; i >= 0; i--) {
- bio_putbit((v >> i) & 1);
- }
-}
-
-/*
- * Read bits.
- *
- * n : Number of bits to read
- */
-int bio_read(int n)
-{
- int i, v;
- v = 0;
- for (i = n - 1; i >= 0; i--) {
- v += bio_getbit() << i;
- }
- return v;
-}
-
-/*
- * Flush bits. Modified to eliminate longjmp !!
- *
- */
-int bio_flush()
-{
- bio_ct = 0;
- if (bio_byteout())
- return 1;
- if (bio_ct == 7) {
- bio_ct = 0;
-
- if (bio_byteout())
- return 1;
- }
- return 0;
-}
-
-/*
- * Passes the ending bits (coming from flushing)
- */
-int bio_inalign()
-{
- bio_ct = 0;
- if ((bio_buf & 0xff) == 0xff) {
- if (bio_bytein())
- return 1;
- bio_ct = 0;
- }
- return 0;
-}