diff options
Diffstat (limited to 'extern/libopenjpeg/cio.c')
| -rw-r--r-- | extern/libopenjpeg/cio.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/extern/libopenjpeg/cio.c b/extern/libopenjpeg/cio.c deleted file mode 100644 index 97cccea6dee..00000000000 --- a/extern/libopenjpeg/cio.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium - * Copyright (c) 2002-2007, Professor Benoit Macq - * Copyright (c) 2001-2003, David Janssens - * Copyright (c) 2002-2003, Yannick Verschueren - * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe - * Copyright (c) 2005, Herve Drolon, FreeImage Team - * 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" -#include <assert.h> - -/* ----------------------------------------------------------------------- */ - -opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length) { - opj_cp_t *cp = NULL; - opj_cio_t *cio = (opj_cio_t*)opj_malloc(sizeof(opj_cio_t)); - if(!cio) return NULL; - cio->cinfo = cinfo; - if(buffer && length) { - /* wrap a user buffer containing the encoded image */ - cio->openmode = OPJ_STREAM_READ; - cio->buffer = buffer; - cio->length = length; - } - else if(!buffer && !length && cinfo) { - /* allocate a buffer for the encoded image */ - cio->openmode = OPJ_STREAM_WRITE; - switch(cinfo->codec_format) { - case CODEC_J2K: - cp = ((opj_j2k_t*)cinfo->j2k_handle)->cp; - break; - case CODEC_JP2: - cp = ((opj_jp2_t*)cinfo->jp2_handle)->j2k->cp; - break; - default: - opj_free(cio); - return NULL; - } - cio->length = (unsigned int) (0.1625 * cp->img_size + 2000); /* 0.1625 = 1.3/8 and 2000 bytes as a minimum for headers */ - cio->buffer = (unsigned char *)opj_malloc(cio->length); - if(!cio->buffer) { - opj_event_msg(cio->cinfo, EVT_ERROR, "Error allocating memory for compressed bitstream\n"); - opj_free(cio); - return NULL; - } - } - else { - opj_free(cio); - return NULL; - } - - /* Initialize byte IO */ - cio->start = cio->buffer; - cio->end = cio->buffer + cio->length; - cio->bp = cio->buffer; - - return cio; -} - -void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio) { - if(cio) { - if(cio->openmode == OPJ_STREAM_WRITE) { - /* destroy the allocated buffer */ - opj_free(cio->buffer); - } - /* destroy the cio */ - opj_free(cio); - } -} - - -/* ----------------------------------------------------------------------- */ - -/* - * Get position in byte stream. - */ -int OPJ_CALLCONV cio_tell(opj_cio_t *cio) { - return cio->bp - cio->start; -} - -/* - * Set position in byte stream. - * - * pos : position, in number of bytes, from the beginning of the stream - */ -void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos) { - assert((cio->start + pos) <= cio->end); - cio->bp = cio->start + pos; -} - -/* - * Number of bytes left before the end of the stream. - */ -int cio_numbytesleft(opj_cio_t *cio) { - assert((cio->end - cio->bp) >= 0); - return cio->end - cio->bp; -} - -/* - * Get pointer to the current position in the stream. - */ -unsigned char *cio_getbp(opj_cio_t *cio) { - return cio->bp; -} - -/* - * Write a byte. - */ -opj_bool cio_byteout(opj_cio_t *cio, unsigned char v) { - if (cio->bp >= cio->end) { - opj_event_msg(cio->cinfo, EVT_ERROR, "write error\n"); - return OPJ_FALSE; - } - *cio->bp++ = v; - return OPJ_TRUE; -} - -/* - * Read a byte. - */ -unsigned char cio_bytein(opj_cio_t *cio) { - assert(cio->bp >= cio->start); - if (cio->bp >= cio->end) { - opj_event_msg(cio->cinfo, EVT_ERROR, "read error: passed the end of the codestream (start = %d, current = %d, end = %d\n", cio->start, cio->bp, cio->end); - return 0; - } - return *cio->bp++; -} - -/* - * Write some bytes. - * - * v : value to write - * n : number of bytes to write - */ -unsigned int cio_write(opj_cio_t *cio, unsigned int64 v, int n) { - int i; - for (i = n - 1; i >= 0; i--) { - if( !cio_byteout(cio, (unsigned char) ((v >> (i << 3)) & 0xff)) ) - return 0; - } - return n; -} - -/* - * Read some bytes. - * - * n : number of bytes to read - * - * return : value of the n bytes read - */ -unsigned int cio_read(opj_cio_t *cio, int n) { - int i; - unsigned int v; - v = 0; - for (i = n - 1; i >= 0; i--) { - v += (unsigned int)cio_bytein(cio) << (i << 3); - } - return v; -} - -/* - * Skip some bytes. - * - * n : number of bytes to skip - */ -void cio_skip(opj_cio_t *cio, int n) { - assert((cio->bp + n) >= cio->bp); - if (((cio->bp + n) < cio->start) || ((cio->bp + n) > cio->end)) { - assert(0); - } - cio->bp += n; -} - - - |