[trunk] Start FolderReorgProposal task

Update issue 177

1 files changed, 187 insertions, 0 deletions

diff --git a/src/lib/openjp2/bio.c b/src/lib/openjp2/bio.c
new file mode 100644
index 00000000..0bf601bb
--- /dev/null
+++ b/src/lib/openjp2/bio.c
@@ -0,0 +1,187 @@
+/*
+ * 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"
+
+/** @defgroup BIO BIO - Individual bit input-output stream */
+/*@{*/
+
+/** @name Local static functions */
+/*@{*/
+
+/**
+Write a bit
+@param bio BIO handle
+@param b Bit to write (0 or 1)
+*/
+static void opj_bio_putbit(opj_bio_t *bio, OPJ_UINT32 b);
+/**
+Read a bit
+@param bio BIO handle
+@return Returns the read bit
+*/
+static OPJ_UINT32 opj_bio_getbit(opj_bio_t *bio);
+/**
+Write a byte
+@param bio BIO handle
+@return Returns OPJ_TRUE if successful, returns OPJ_FALSE otherwise
+*/
+static opj_bool opj_bio_byteout(opj_bio_t *bio);
+/**
+Read a byte
+@param bio BIO handle
+@return Returns OPJ_TRUE if successful, returns OPJ_FALSE otherwise
+*/
+static opj_bool opj_bio_bytein(opj_bio_t *bio);
+
+/*@}*/
+
+/*@}*/
+
+/* 
+==========================================================
+   local functions
+==========================================================
+*/
+
+opj_bool opj_bio_byteout(opj_bio_t *bio) {
+	bio->buf = (bio->buf << 8) & 0xffff;
+	bio->ct = bio->buf == 0xff00 ? 7 : 8;
+	if (bio->bp >= bio->end) {
+		return OPJ_FALSE;
+	}
+	*bio->bp++ = (unsigned char)(bio->buf >> 8); /* TODO MSD: check this conversion */
+	return OPJ_TRUE;
+}
+
+opj_bool opj_bio_bytein(opj_bio_t *bio) {
+	bio->buf = (bio->buf << 8) & 0xffff;
+	bio->ct = bio->buf == 0xff00 ? 7 : 8;
+	if (bio->bp >= bio->end) {
+		return OPJ_FALSE;
+	}
+	bio->buf |= *bio->bp++;
+	return OPJ_TRUE;
+}
+
+void opj_bio_putbit(opj_bio_t *bio, OPJ_UINT32 b) {
+	if (bio->ct == 0) {
+		opj_bio_byteout(bio); // TODO_MSD: check this line
+	}
+	bio->ct--;
+	bio->buf |= b << bio->ct;
+}
+
+OPJ_UINT32 opj_bio_getbit(opj_bio_t *bio) {
+	if (bio->ct == 0) {
+		opj_bio_bytein(bio); // TODO_MSD: check this line
+	}
+	bio->ct--;
+	return (bio->buf >> bio->ct) & 1;
+}
+
+/* 
+==========================================================
+   Bit Input/Output interface
+==========================================================
+*/
+
+opj_bio_t* opj_bio_create(void) {
+	opj_bio_t *bio = (opj_bio_t*)opj_malloc(sizeof(opj_bio_t));
+	return bio;
+}
+
+void opj_bio_destroy(opj_bio_t *bio) {
+	if(bio) {
+		opj_free(bio);
+	}
+}
+
+ptrdiff_t bio_numbytes(opj_bio_t *bio) {
+	return (bio->bp - bio->start);
+}
+
+void bio_init_enc(opj_bio_t *bio, unsigned char *bp, int len) {
+	bio->start = bp;
+	bio->end = bp + len;
+	bio->bp = bp;
+	bio->buf = 0;
+	bio->ct = 8;
+}
+
+void bio_init_dec(opj_bio_t *bio, unsigned char *bp, int len) {
+	bio->start = bp;
+	bio->end = bp + len;
+	bio->bp = bp;
+	bio->buf = 0;
+	bio->ct = 0;
+}
+
+void bio_write(opj_bio_t *bio, int v, int n) {
+	int i;
+	for (i = n - 1; i >= 0; i--) {
+		opj_bio_putbit(bio, (v >> i) & 1);
+	}
+}
+
+int bio_read(opj_bio_t *bio, int n) {
+	int i, v;
+	v = 0;
+	for (i = n - 1; i >= 0; i--) {
+		v += opj_bio_getbit(bio) << i;
+	}
+	return v;
+}
+
+int bio_flush(opj_bio_t *bio) {
+	bio->ct = 0;
+	if (! opj_bio_byteout(bio)) {
+		return 1;
+	}
+	if (bio->ct == 7) {
+		bio->ct = 0;
+		if (! opj_bio_byteout(bio)) {
+			return 1;
+		}
+	}
+	return 0;
+}
+
+int bio_inalign(opj_bio_t *bio) {
+	bio->ct = 0;
+	if ((bio->buf & 0xff) == 0xff) {
+		if (! opj_bio_bytein(bio)) {
+			return 1;
+		}
+		bio->ct = 0;
+	}
+	return 0;
+}