e9b47e2f83
git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@405 52acb1d6-8a22-11de-b505-999d5b087335
410 lines
13 KiB
C#
410 lines
13 KiB
C#
/*
|
|
* Copyright (c) 2006, Second Life Reverse Engineering 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:
|
|
*
|
|
* - Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
* - Neither the name of the Second Life Reverse Engineering Team nor the names
|
|
* of its contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Text;
|
|
|
|
namespace libsecondlife
|
|
{
|
|
public class TextureEntry
|
|
{
|
|
private Dictionary<uint, TextureEntryFace> Textures;
|
|
public TextureEntryFace DefaultTexture;
|
|
|
|
public TextureEntryFace GetFace(uint index)
|
|
{
|
|
if (Textures.ContainsKey(index))
|
|
return Textures[index];
|
|
else
|
|
return DefaultTexture;
|
|
}
|
|
|
|
public TextureEntryFace SetFace(uint index)
|
|
{
|
|
if (!Textures.ContainsKey(index))
|
|
Textures[index] = new TextureEntryFace(this.DefaultTexture);
|
|
|
|
return Textures[index];
|
|
}
|
|
|
|
public TextureEntry()
|
|
{
|
|
Textures = new Dictionary<uint, TextureEntryFace>();
|
|
DefaultTexture = new TextureEntryFace(null);
|
|
}
|
|
|
|
public TextureEntry(byte[] data, int pos)
|
|
{
|
|
FromByte(data, pos);
|
|
}
|
|
|
|
private bool readFaceBitfield(byte[] data, ref int pos, ref uint faceBits, ref uint bitfieldSize)
|
|
{
|
|
faceBits = 0;
|
|
bitfieldSize = 0;
|
|
|
|
if (pos >= data.Length)
|
|
return false;
|
|
|
|
byte b = 0;
|
|
do
|
|
{
|
|
b = data[pos];
|
|
faceBits = (faceBits << 7) | (uint)(b & 0x7F);
|
|
bitfieldSize += 7;
|
|
pos++;
|
|
}
|
|
while ((b & 0x80) != 0);
|
|
|
|
return (faceBits != 0);
|
|
}
|
|
|
|
private float Dequantize(byte[] byteArray, int pos, float lower, float upper)
|
|
{
|
|
ushort value = (ushort)(byteArray[pos] + (byteArray[pos + 1] << 8));
|
|
float QV = (float)value;
|
|
float range = upper - lower;
|
|
float QF = range / 65536.0F;
|
|
return (float)((QV * QF - (0.5F * range)) + QF);
|
|
}
|
|
|
|
private void FromByte(byte[] data, int pos)
|
|
{
|
|
Textures = new Dictionary<uint, TextureEntryFace>();
|
|
DefaultTexture = new TextureEntryFace(null);
|
|
|
|
uint BitfieldSize = 0;
|
|
uint faceBits = 0;
|
|
int i = pos;
|
|
|
|
//Read TextureID ---------------------------------------
|
|
DefaultTexture.TextureID = new LLUUID(data, i);
|
|
i += 16;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
LLUUID tmpUUID = new LLUUID(data, i);
|
|
i += 16;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).TextureID = tmpUUID;
|
|
}
|
|
//Read RGBA --------------------------------------------
|
|
DefaultTexture.RGBA = (uint)(data[i] + (data[i + 1] << 8) + (data[i + 2] << 16) + (data[i + 3] << 24));
|
|
i += 4;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
uint tmpUint = (uint)(data[i] + (data[i + 1] << 8) + (data[i + 2] << 16) + (data[i + 3] << 24));
|
|
i += 4;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).RGBA = tmpUint;
|
|
}
|
|
//Read RepeatU -----------------------------------------
|
|
DefaultTexture.RepeatU = Dequantize(data, i, -101.0F, 101.0F) + 1.0F;
|
|
i += 2;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
float tmpFloat = Dequantize(data, i, -101.0F, 101.0F) + 1.0F;
|
|
i += 2;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).RepeatU = tmpFloat;
|
|
}
|
|
//Read RepeatV -----------------------------------------
|
|
DefaultTexture.RepeatV = Dequantize(data, i, -101.0F, 101.0F) + 1.0F;
|
|
i += 2;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
float tmpFloat = Dequantize(data, i, -101.0F, 101.0F) + 1.0F;
|
|
i += 2;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).RepeatV = tmpFloat;
|
|
}
|
|
//Read OffsetU -----------------------------------------
|
|
DefaultTexture.OffsetU = Dequantize(data, i, -1.0F, 1.0F);
|
|
i += 2;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
float tmpFloat = Dequantize(data, i, -1.0F, 1.0F);
|
|
i += 2;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).OffsetU = tmpFloat;
|
|
}
|
|
//Read OffsetV -----------------------------------------
|
|
DefaultTexture.OffsetV = Dequantize(data, i, -1.0F, 1.0F);
|
|
i += 2;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
float tmpFloat = Dequantize(data, i, -1.0F, 1.0F);
|
|
i += 2;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).OffsetV = tmpFloat;
|
|
}
|
|
//Read Rotation ----------------------------------------
|
|
DefaultTexture.Rotation = Dequantize(data, i, -359.995F, 359.995F);
|
|
i += 2;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
float tmpFloat = Dequantize(data, i, -359.995F, 359.995F);
|
|
i += 2;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).Rotation = tmpFloat;
|
|
}
|
|
//Read Flags1 ------------------------------------------
|
|
DefaultTexture.Flags1 = data[i];
|
|
i++;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
byte tmpByte = data[i];
|
|
i++;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).Flags1 = tmpByte;
|
|
}
|
|
//Read Flags2 ------------------------------------------
|
|
DefaultTexture.Flags2 = data[i];
|
|
i++;
|
|
|
|
while (readFaceBitfield(data, ref i, ref faceBits, ref BitfieldSize))
|
|
{
|
|
byte tmpByte = data[i];
|
|
i++;
|
|
|
|
for (uint face = 0, bit = 1; face < BitfieldSize; face++, bit <<= 1)
|
|
if ((faceBits & bit) != 0)
|
|
SetFace(face).Flags2 = tmpByte;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class TextureEntryFace
|
|
{
|
|
[Flags]
|
|
private enum TextureAttributes : uint
|
|
{
|
|
None,
|
|
TextureID,
|
|
RGBA,
|
|
RepeatU,
|
|
RepeatV,
|
|
OffsetU,
|
|
OffsetV,
|
|
Rotation,
|
|
Flags1,
|
|
Flags2,
|
|
All = 0xFFFFFFFF
|
|
}
|
|
|
|
private TextureAttributes hasAttribute;
|
|
|
|
private TextureEntryFace DefaultTexture;
|
|
|
|
private LLUUID _TextureID;
|
|
private uint _RGBA;
|
|
private float _RepeatU;
|
|
private float _RepeatV;
|
|
private float _OffsetU;
|
|
private float _OffsetV;
|
|
private float _Rotation;
|
|
private byte _Flags1;
|
|
private byte _Flags2;
|
|
|
|
public TextureEntryFace(TextureEntryFace defaultTexture)
|
|
{
|
|
DefaultTexture = defaultTexture;
|
|
if (DefaultTexture == null)
|
|
hasAttribute = TextureAttributes.All;
|
|
else
|
|
hasAttribute = TextureAttributes.None;
|
|
}
|
|
|
|
public LLUUID TextureID
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.TextureID) != 0)
|
|
return _TextureID;
|
|
else
|
|
return DefaultTexture._TextureID;
|
|
}
|
|
set
|
|
{
|
|
_TextureID = value;
|
|
hasAttribute |= TextureAttributes.TextureID;
|
|
}
|
|
}
|
|
|
|
public uint RGBA
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.RGBA) != 0)
|
|
return _RGBA;
|
|
else
|
|
return DefaultTexture._RGBA;
|
|
}
|
|
set
|
|
{
|
|
_RGBA = value;
|
|
hasAttribute |= TextureAttributes.RGBA;
|
|
}
|
|
}
|
|
|
|
public float RepeatU
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.RepeatU) != 0)
|
|
return _RepeatU;
|
|
else
|
|
return DefaultTexture._RepeatU;
|
|
}
|
|
set
|
|
{
|
|
_RepeatU = value;
|
|
hasAttribute |= TextureAttributes.RepeatU;
|
|
}
|
|
}
|
|
|
|
public float RepeatV
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.RepeatV) != 0)
|
|
return _RepeatV;
|
|
else
|
|
return DefaultTexture._RepeatV;
|
|
}
|
|
set
|
|
{
|
|
_RepeatV = value;
|
|
hasAttribute |= TextureAttributes.RepeatV;
|
|
}
|
|
}
|
|
|
|
public float OffsetU
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.OffsetU) != 0)
|
|
return _OffsetU;
|
|
else
|
|
return DefaultTexture._OffsetU;
|
|
}
|
|
set
|
|
{
|
|
_OffsetU = value;
|
|
hasAttribute |= TextureAttributes.OffsetU;
|
|
}
|
|
}
|
|
|
|
public float OffsetV
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.OffsetV) != 0)
|
|
return _OffsetV;
|
|
else
|
|
return DefaultTexture._OffsetV;
|
|
}
|
|
set
|
|
{
|
|
_OffsetV = value;
|
|
hasAttribute |= TextureAttributes.OffsetV;
|
|
}
|
|
}
|
|
|
|
public float Rotation
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.Rotation) != 0)
|
|
return _Rotation;
|
|
else
|
|
return DefaultTexture._Rotation;
|
|
}
|
|
set
|
|
{
|
|
_Rotation = value;
|
|
hasAttribute |= TextureAttributes.Rotation;
|
|
}
|
|
}
|
|
|
|
public byte Flags1
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.Flags1) != 0)
|
|
return _Flags1;
|
|
else
|
|
return DefaultTexture._Flags1;
|
|
}
|
|
set
|
|
{
|
|
_Flags1 = value;
|
|
hasAttribute |= TextureAttributes.Flags1;
|
|
}
|
|
}
|
|
|
|
public byte Flags2
|
|
{
|
|
get
|
|
{
|
|
if ((hasAttribute & TextureAttributes.Flags2) != 0)
|
|
return _Flags2;
|
|
else
|
|
return DefaultTexture._Flags2;
|
|
}
|
|
set
|
|
{
|
|
_Flags2 = value;
|
|
hasAttribute |= TextureAttributes.Flags2;
|
|
}
|
|
}
|
|
}
|
|
}
|