1 files changed, 138 insertions, 0 deletions
diff --git a/OpenSim/Framework/OpenJpeg/bio.cs b/OpenSim/Framework/OpenJpeg/bio.cs
new file mode 100644
index 0000000..4f095ad
--- /dev/null
+++ b/OpenSim/Framework/OpenJpeg/bio.cs
@@ -0,0 +1,138 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Framework.OpenJpeg
+{
+    public static class bio
+    {
+        
+        public static opj_bio bio_create()
+        {
+            opj_bio bio = new opj_bio();
+            return bio;
+        }
+        public static void bio_destroy(opj_bio bio)
+        {
+            // not needed on C#
+        }
+        public static int bio_numbytes(opj_bio bio)
+        {
+            return (bio.bp - bio.start);
+        }
+        public static void bio_init_enc(opj_bio bio, sbyte bp, int len)
+        {
+            bio.start = (byte)bp;
+            bio.end = (byte)(bp + (byte)len);
+            bio.bp = (byte)bp;
+            bio.buf = 0;
+            bio.ct = 8;
+        }
+        public static void bio_init_dec(opj_bio bio, sbyte bp, int len)
+        {
+            bio.start = (byte)bp;
+            bio.end = (byte)(bp + len);
+            bio.bp = (byte)bp;
+            bio.buf = 0;
+            bio.ct = 0;
+        }
+        public static void bio_write(opj_bio bio, int v, int n)
+        {
+            for (int i = n - 1; i >= 0; i--)
+                bio_putbit(bio, (v >> i) & 1);
+        }
+        public static int bio_read(opj_bio bio, int n)
+        {
+            int v = 0;
+            for (int i = n - 1; i >= 0; i--)
+                v += bio_getbit(bio) << i;
+            return v;
+        }
+        public static int bio_flush(opj_bio bio)
+        {
+            bio.ct = 0;
+            if (bio_byteout(bio) != 0)
+                return 1;
+            if (bio.ct == 7)
+            {
+                bio.ct = 0;
+                if (bio_byteout(bio) != 0)
+                    return 1;
+            }
+            return 0;
+        }
+        public static int bio_inalign(opj_bio bio)
+        {
+            bio.ct = 0;
+            if ((bio.buf & 0xff) == 0xff)
+            {
+                if (bio_bytein(bio) != 0)
+                    return 1;
+                bio.ct = 0;
+            }
+            return 0;
+        }
+        private static int bio_bytein(opj_bio 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;
+        }
+        private static int bio_byteout(opj_bio bio)
+        {
+            bio.buf = (bio.buf << 8) & 0xffff;
+            bio.ct = bio.buf == 0xff00 ? 7 : 8;
+            if (bio.bp >= bio.end)
+                return 1;
+            bio.bp = (byte)(bio.buf >> 8);
+            bio.bp++;
+            return 0;
+        }
+        private static void bio_putbit(opj_bio bio, int b)
+        {
+            if (bio.ct == 0)
+                bio_byteout(bio);
+            bio.ct--;
+            bio.buf |= (byte)(b << bio.ct);
+        }
+        private static int bio_getbit(opj_bio bio)
+        {
+            if (bio.ct == 0)
+                bio_bytein(bio);
+            bio.ct--;
+            return (int)((bio.buf >> bio.ct) & 1);
+        }
+    }
+    public struct opj_bio
+    {
+        public byte start;
+        public byte end;
+        public byte bp;
+        public uint buf;
+        public int ct;
+    }
+}

diff --git a/OpenSim/Framework/OpenJpeg/bio.cs b/OpenSim/Framework/OpenJpeg/bio.cs new file mode 100644 index 0000000..4f095ad --- /dev/null +++ b/OpenSim/Framework/OpenJpeg/bio.cs
@@ -0,0 +1,138 @@
	1	using System;
	2	using System.Collections.Generic;
	3	using System.Text;
	4
	5	namespace OpenSim.Framework.OpenJpeg
	6	{
	7	public static class bio
	8	{
	9
	10	public static opj_bio bio_create()
	11	{
	12	opj_bio bio = new opj_bio();
	13	return bio;
	14	}
	15
	16	public static void bio_destroy(opj_bio bio)
	17	{
	18	// not needed on C#
	19	}
	20
	21	public static int bio_numbytes(opj_bio bio)
	22	{
	23	return (bio.bp - bio.start);
	24	}
	25
	26	public static void bio_init_enc(opj_bio bio, sbyte bp, int len)
	27	{
	28	bio.start = (byte)bp;
	29	bio.end = (byte)(bp + (byte)len);
	30	bio.bp = (byte)bp;
	31	bio.buf = 0;
	32	bio.ct = 8;
	33	}
	34
	35	public static void bio_init_dec(opj_bio bio, sbyte bp, int len)
	36	{
	37	bio.start = (byte)bp;
	38	bio.end = (byte)(bp + len);
	39	bio.bp = (byte)bp;
	40	bio.buf = 0;
	41	bio.ct = 0;
	42	}
	43
	44	public static void bio_write(opj_bio bio, int v, int n)
	45	{
	46	for (int i = n - 1; i >= 0; i--)
	47	bio_putbit(bio, (v >> i) & 1);
	48	}
	49
	50	public static int bio_read(opj_bio bio, int n)
	51	{
	52	int v = 0;
	53	for (int i = n - 1; i >= 0; i--)
	54	v += bio_getbit(bio) << i;
	55
	56	return v;
	57	}
	58
	59	public static int bio_flush(opj_bio bio)
	60	{
	61	bio.ct = 0;
	62	if (bio_byteout(bio) != 0)
	63	return 1;
	64
	65	if (bio.ct == 7)
	66	{
	67	bio.ct = 0;
	68	if (bio_byteout(bio) != 0)
	69	return 1;
	70	}
	71	return 0;
	72	}
	73
	74	public static int bio_inalign(opj_bio bio)
	75	{
	76	bio.ct = 0;
	77	if ((bio.buf & 0xff) == 0xff)
	78	{
	79	if (bio_bytein(bio) != 0)
	80	return 1;
	81	bio.ct = 0;
	82	}
	83	return 0;
	84	}
	85
	86	private static int bio_bytein(opj_bio bio)
	87	{
	88	bio.buf = (bio.buf << 8) & 0xffff;
	89	bio.ct = bio.buf == 0xff00 ? 7 : 8;
	90	if (bio.bp >= bio.end)
	91	return 1;
	92	bio.buf \|= bio.bp++;
	93
	94	return 0;
	95	}
	96
	97	private static int bio_byteout(opj_bio bio)
	98	{
	99	bio.buf = (bio.buf << 8) & 0xffff;
	100	bio.ct = bio.buf == 0xff00 ? 7 : 8;
	101	if (bio.bp >= bio.end)
	102	return 1;
	103
	104	bio.bp = (byte)(bio.buf >> 8);
	105	bio.bp++;
	106	return 0;
	107	}
	108
	109	private static void bio_putbit(opj_bio bio, int b)
	110	{
	111	if (bio.ct == 0)
	112	bio_byteout(bio);
	113
	114	bio.ct--;
	115	bio.buf \|= (byte)(b << bio.ct);
	116
	117	}
	118
	119	private static int bio_getbit(opj_bio bio)
	120	{
	121	if (bio.ct == 0)
	122	bio_bytein(bio);
	123	bio.ct--;
	124
	125	return (int)((bio.buf >> bio.ct) & 1);
	126	}
	127
	128	}
	129
	130	public struct opj_bio
	131	{
	132	public byte start;
	133	public byte end;
	134	public byte bp;
	135	public uint buf;
	136	public int ct;
	137	}
	138	}