-/*
- * Copyright (c) 2002-2003, Antonin Descampe
- * 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 "raw.h"
-
-
-unsigned char raw_c; /* temporary buffer where bits are coded or decoded */
-unsigned int raw_ct; /* number of bits already read or free to write */
-unsigned int raw_lenmax; /* maximum length to decode */
-unsigned int raw_len; /* length decoded */
-unsigned char *raw_bp; /* pointer to the current position in the buffer */
-unsigned char *raw_start; /* pointer to the start of the buffer */
-unsigned char *raw_end; /* pointer to the end of the buffer */
-
-/*
- * Return the number of bytes already encoded.
- */
-int raw_numbytes()
-{
- return raw_bp - raw_start;
-}
-
-/*
- * Initialize raw-decoder.
- *
- * bp : pointer to the start of the buffer from which the bytes will be read
- * len : length of the input buffer
- */
-void raw_init_dec(unsigned char *bp, int len)
-{
- raw_start = bp;
- raw_lenmax = len;
- raw_len = 0;
- raw_c = 0;
- raw_ct = 0;
-}
-
-/*
- * Decode a symbol using raw-decoder. Cfr p.506 TAUBMAN
- */
-int raw_decode()
-{
- 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;
-}
+/*\r
+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe\r
+ * Copyright (c) 2005, Hervé Drolon, FreeImage Team\r
+ * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium\r
+ * All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ * 1. Redistributions of source code must retain the above copyright\r
+ * notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above copyright\r
+ * notice, this list of conditions and the following disclaimer in the\r
+ * documentation and/or other materials provided with the distribution.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'\r
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE\r
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
+ * POSSIBILITY OF SUCH DAMAGE.\r
+ */\r
+\r
+#include "opj_includes.h"\r
+\r
+/* \r
+==========================================================\r
+ local functions\r
+==========================================================\r
+*/\r
+\r
+\r
+/* \r
+==========================================================\r
+ RAW encoding interface\r
+==========================================================\r
+*/\r
+\r
+opj_raw_t* raw_create() {\r
+ opj_raw_t *raw = (opj_raw_t*)opj_malloc(sizeof(opj_raw_t));\r
+ return raw;\r
+}\r
+\r
+void raw_destroy(opj_raw_t *raw) {\r
+ if(raw) {\r
+ opj_free(raw);\r
+ }\r
+}\r
+\r
+int raw_numbytes(opj_raw_t *raw) {\r
+ return raw->bp - raw->start;\r
+}\r
+\r
+void raw_init_dec(opj_raw_t *raw, unsigned char *bp, int len) {\r
+ raw->start = bp;\r
+ raw->lenmax = len;\r
+ raw->len = 0;\r
+ raw->c = 0;\r
+ raw->ct = 0;\r
+}\r
+\r
+int raw_decode(opj_raw_t *raw) {\r
+ int d;\r
+ if (raw->ct == 0) {\r
+ raw->ct = 8;\r
+ if (raw->len == raw->lenmax) {\r
+ raw->c = 0xff;\r
+ } else {\r
+ if (raw->c == 0xff) {\r
+ raw->ct = 7;\r
+ }\r
+ raw->c = *(raw->start + raw->len);\r
+ raw->len++;\r
+ }\r
+ }\r
+ raw->ct--;\r
+ d = (raw->c >> raw->ct) & 0x01;\r
+ \r
+ return d;\r
+}\r
+\r
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff