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Diffstat (limited to 'libopenjpeg/cio.c')
| -rw-r--r-- | libopenjpeg/cio.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/libopenjpeg/cio.c b/libopenjpeg/cio.c deleted file mode 100644 index b57e085f..00000000 --- a/libopenjpeg/cio.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * Copyright (c) 2001-2002, David Janssens - * 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 "cio.h" -#include <setjmp.h> - -static unsigned char *cio_start; /* pointer to the start of the stream */ -static unsigned char *cio_end; /* pointer to the end of the stream */ -static unsigned char *cio_bp; /* pointer to the present position */ - -extern jmp_buf j2k_error; - -/* - * Number of bytes written. - */ -int cio_numbytes() -{ - return cio_bp - cio_start; -} - -/* - * Get position in byte stream. - */ -int cio_tell() -{ - return cio_bp - cio_start; -} - -/* - * Set position in byte stream. - * - * pos : position, in number of bytes, from the beginning of the stream - */ -void cio_seek(int pos) -{ - cio_bp = cio_start + pos; -} - -/* - * Number of bytes left before the end of the stream. - */ -int cio_numbytesleft() -{ - return cio_end - cio_bp; -} - -/* - * Get pointer to the current position in the stream. - */ -unsigned char *cio_getbp() -{ - return cio_bp; -} - -/* - * Initialize byte IO - * - * bp : destination/source stream - * len : length of the stream - */ -void cio_init(unsigned char *bp, int len) -{ - cio_start = bp; - cio_end = bp + len; - cio_bp = bp; -} - -/* - * Write a byte. - */ -void cio_byteout(unsigned char v) -{ - if (cio_bp >= cio_end) - longjmp(j2k_error, 1); - *cio_bp++ = v; - -} - -/* - * Read a byte. - */ -unsigned char cio_bytein() -{ - if (cio_bp >= cio_end) - longjmp(j2k_error, 1); - return *cio_bp++; -} - -/* - * Write some bytes. - * - * v : value to write - * n : number of bytes to write - */ -void cio_write(unsigned int v, int n) -{ - int i; - for (i = n - 1; i >= 0; i--) { - cio_byteout((unsigned char) ((v >> (i << 3)) & 0xff)); - } -} - -/* - * Read some bytes. - * - * n : number of bytes to read - * - * return : value of the n bytes read - */ -unsigned int cio_read(int n) -{ - int i; - unsigned int v; - v = 0; - for (i = n - 1; i >= 0; i--) { - v += cio_bytein() << (i << 3); - } - return v; -} - -/* - * Skip some bytes. - * - * n : number of bytes to skip - */ -void cio_skip(int n) -{ - cio_bp += n; -} |
