renamed and reorganized "jp3d" directory to "openjpeg3d". Is now a standalone directory, with independent cmake files. Done as it uses its own version of the openjpeg library and does not depend on the one currently developped. Will be removed from the trunk and stored in a branch.openjpeg3d@749

1 files changed, 189 insertions, 0 deletions

diff --git a/libopenjpeg3d/bio.c b/libopenjpeg3d/bio.c
new file mode 100755
index 00000000..bc3b1138
--- /dev/null
+++ b/libopenjpeg3d/bio.c
@@ -0,0 +1,189 @@
+/*

+ * Copyright (c) 2001-2003, David Janssens

+ * Copyright (c) 2002-2003, Yannick Verschueren

+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe

+ * Copyright (c) 2005, Herve 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"

+

+/** @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 bio_putbit(opj_bio_t *bio, int b);

+/**

+Read a bit

+@param bio BIO handle

+@return Returns the read bit

+*/

+static int bio_getbit(opj_bio_t *bio);

+/**

+Write a byte

+@param bio BIO handle

+@return Returns 0 if successful, returns 1 otherwise

+*/

+static int bio_byteout(opj_bio_t *bio);

+/**

+Read a byte

+@param bio BIO handle

+@return Returns 0 if successful, returns 1 otherwise

+*/

+static int bio_bytein(opj_bio_t *bio);

+

+/*@}*/

+

+/*@}*/

+

+

+/* 

+==========================================================

+   local functions

+==========================================================

+*/

+

+static int 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 1;

+	}

+	*bio->bp++ = bio->buf >> 8;

+	return 0;

+}

+

+static int 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 1;

+	}

+	bio->buf |= *bio->bp++;

+	return 0;

+}

+

+static void bio_putbit(opj_bio_t *bio, int b) {

+	if (bio->ct == 0) {

+		bio_byteout(bio);

+	}

+	bio->ct--;

+	bio->buf |= b << bio->ct;

+}

+

+/* MOD antonin */

+static int bio_getbit(opj_bio_t *bio) {

+/* DOM */

+	if (bio->ct == 0) {

+		bio_bytein(bio);

+	}

+	bio->ct--;

+	return (bio->buf >> bio->ct) & 1;

+}

+

+/* 

+==========================================================

+   Bit Input/Output interface

+==========================================================

+*/

+

+opj_bio_t* bio_create() {

+	opj_bio_t *bio = (opj_bio_t*)opj_malloc(sizeof(opj_bio_t));

+	return bio;

+}

+

+void bio_destroy(opj_bio_t *bio) {

+	if(bio) {

+		opj_free(bio);

+	}

+}

+

+int 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--) {

+		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 += bio_getbit(bio) << i;

+	}

+	return v;

+}

+

+int bio_flush(opj_bio_t *bio) {

+	bio->ct = 0;

+	if (bio_byteout(bio)) {

+		return 1;

+	}

+	if (bio->ct == 7) {

+		bio->ct = 0;

+		if (bio_byteout(bio)) {

+			return 1;

+		}

+	}

+	return 0;

+}

+

+int bio_inalign(opj_bio_t *bio) {

+	bio->ct = 0;

+	if ((bio->buf & 0xff) == 0xff) {

+		if (bio_bytein(bio)) {

+			return 1;

+		}

+		bio->ct = 0;

+	}

+	return 0;

+}