0,0 → 1,86 |
/* |
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe |
* Copyright (c) 2005, Hervé Drolon, FreeImage Team |
* Copyright (c) 2002-2005, 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 "opj_includes.h" |
|
/* |
========================================================== |
local functions |
========================================================== |
*/ |
|
|
/* |
========================================================== |
RAW encoding interface |
========================================================== |
*/ |
|
opj_raw_t* raw_create() { |
opj_raw_t *raw = (opj_raw_t*)opj_malloc(sizeof(opj_raw_t)); |
return raw; |
} |
|
void raw_destroy(opj_raw_t *raw) { |
if(raw) { |
opj_free(raw); |
} |
} |
|
int raw_numbytes(opj_raw_t *raw) { |
return raw->bp - raw->start; |
} |
|
void raw_init_dec(opj_raw_t *raw, unsigned char *bp, int len) { |
raw->start = bp; |
raw->lenmax = len; |
raw->len = 0; |
raw->c = 0; |
raw->ct = 0; |
} |
|
int raw_decode(opj_raw_t *raw) { |
int d; |
if (raw->ct == 0) { |
raw->ct = 8; |
if (raw->len == raw->lenmax) { |
raw->c = 0xff; |
} else { |
if (raw->c == 0xff) { |
raw->ct = 7; |
} |
raw->c = *(raw->start + raw->len); |
raw->len++; |
} |
} |
raw->ct--; |
d = (raw->c >> raw->ct) & 0x01; |
|
return d; |
} |
|
Property changes: |
Added: svn:executable |
+* |
\ No newline at end of property |