mirror of
https://github.com/OpenMW/openmw.git
synced 2025-10-31 21:26:41 +00:00
500 lines
11 KiB
C++
500 lines
11 KiB
C++
/*
|
|
OpenMW - The completely unofficial reimplementation of Morrowind
|
|
Copyright (C) 2008-2010 Nicolay Korslund
|
|
Email: < korslund@gmail.com >
|
|
WWW: http://openmw.sourceforge.net/
|
|
|
|
This file (data.h) is part of the OpenMW package.
|
|
|
|
OpenMW is distributed as free software: you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License
|
|
version 3, as published by the Free Software Foundation.
|
|
|
|
This program is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
version 3 along with this program. If not, see
|
|
http://www.gnu.org/licenses/ .
|
|
|
|
*/
|
|
|
|
#ifndef _NIF_DATA_H_
|
|
#define _NIF_DATA_H_
|
|
|
|
#include "controlled.hpp"
|
|
|
|
namespace Nif
|
|
{
|
|
|
|
class NiSourceTexture : public Named
|
|
{
|
|
public:
|
|
|
|
// Is this an external (references a separate texture file) or
|
|
// internal (data is inside the nif itself) texture?
|
|
bool external;
|
|
|
|
SString filename; // In case of external textures
|
|
NiPixelDataPtr data; // In case of internal textures
|
|
|
|
/* Pixel layout
|
|
0 - Palettised
|
|
1 - High color 16
|
|
2 - True color 32
|
|
3 - Compressed
|
|
4 - Bumpmap
|
|
5 - Default */
|
|
int pixel;
|
|
|
|
/* Mipmap format
|
|
0 - no
|
|
1 - yes
|
|
2 - default */
|
|
int mipmap;
|
|
|
|
/* Alpha
|
|
0 - none
|
|
1 - binary
|
|
2 - smooth
|
|
3 - default (use material alpha, or multiply material with texture if present)
|
|
*/
|
|
int alpha;
|
|
|
|
void read(NIFFile *nif)
|
|
{
|
|
Named::read(nif);
|
|
|
|
external = !!nif->getByte();
|
|
|
|
if(external) filename = nif->getString();
|
|
else
|
|
{
|
|
nif->getByte(); // always 1
|
|
data.read(nif);
|
|
}
|
|
|
|
pixel = nif->getInt();
|
|
mipmap = nif->getInt();
|
|
alpha = nif->getInt();
|
|
|
|
nif->getByte(); // always 1
|
|
}
|
|
};
|
|
|
|
// Common ancestor for several data classes
|
|
class ShapeData : public Record
|
|
{
|
|
public:
|
|
FloatArray vertices, normals, colors, uvlist;
|
|
const Vector *center;
|
|
float radius;
|
|
|
|
void read(NIFFile *nif)
|
|
{
|
|
int verts = nif->getShort();
|
|
|
|
if(nif->getInt())
|
|
vertices = nif->getFloatLen(verts*3);
|
|
|
|
if(nif->getInt())
|
|
normals = nif->getFloatLen(verts*3);
|
|
|
|
center = nif->getVector();
|
|
radius = nif->getFloat();
|
|
|
|
if(nif->getInt())
|
|
colors = nif->getFloatLen(verts*4);
|
|
|
|
int uvs = nif->getShort();
|
|
|
|
// Only the first 6 bits are used as a count. I think the rest are
|
|
// flags of some sort.
|
|
uvs &= 0x3f;
|
|
|
|
if(nif->getInt())
|
|
uvlist = nif->getFloatLen(uvs*verts*2);
|
|
}
|
|
};
|
|
|
|
class NiTriShapeData : public ShapeData
|
|
{
|
|
public:
|
|
// Triangles, three vertex indices per triangle
|
|
SliceArray<short> triangles;
|
|
|
|
void read(NIFFile *nif)
|
|
{
|
|
ShapeData::read(nif);
|
|
|
|
int tris = nif->getShort();
|
|
if(tris)
|
|
{
|
|
// We have three times as many vertices as triangles, so this
|
|
// is always equal to tris*3.
|
|
int cnt = nif->getInt();
|
|
triangles = nif->getArrayLen<short>(cnt);
|
|
}
|
|
|
|
// Read the match list, which lists the vertices that are equal to
|
|
// vertices. We don't actually need need this for anything, so
|
|
// just skip it.
|
|
int verts = nif->getShort();
|
|
if(verts)
|
|
{
|
|
for(int i=0;i<verts;i++)
|
|
{
|
|
// Number of vertices matching vertex 'i'
|
|
short num = nif->getShort();
|
|
nif->skip(num*sizeof(short));
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
class NiAutoNormalParticlesData : public ShapeData
|
|
{
|
|
public:
|
|
int activeCount;
|
|
|
|
void read(NIFFile *nif)
|
|
{
|
|
ShapeData::read(nif);
|
|
|
|
// Should always match the number of vertices
|
|
activeCount = nif->getShort();
|
|
|
|
// Skip all the info, we don't support particles yet
|
|
nif->getFloat(); // Active radius ?
|
|
nif->getShort(); // Number of valid entries in the following arrays ?
|
|
|
|
if(nif->getInt())
|
|
// Particle sizes
|
|
nif->getFloatLen(activeCount);
|
|
}
|
|
};
|
|
|
|
class NiRotatingParticlesData : public NiAutoNormalParticlesData
|
|
{
|
|
public:
|
|
void read(NIFFile *nif)
|
|
{
|
|
NiAutoNormalParticlesData::read(nif);
|
|
|
|
if(nif->getInt())
|
|
// Rotation quaternions. I THINK activeCount is correct here,
|
|
// but verts (vertex number) might also be correct, if there is
|
|
// any case where the two don't match.
|
|
nif->getArrayLen<Vector4>(activeCount);
|
|
}
|
|
};
|
|
|
|
class NiPosData : public Record
|
|
{
|
|
public:
|
|
void read(NIFFile *nif)
|
|
{
|
|
int count = nif->getInt();
|
|
int type = nif->getInt();
|
|
if(type != 1 && type != 2)
|
|
nif->fail("Cannot handle NiPosData type");
|
|
|
|
// TODO: Could make structs of these. Seems to be identical to
|
|
// translation in NiKeyframeData.
|
|
for(int i=0; i<count; i++)
|
|
{
|
|
/*float time =*/ nif->getFloat();
|
|
nif->getVector(); // This isn't really shared between type 1
|
|
// and type 2, most likely
|
|
if(type == 2)
|
|
{
|
|
nif->getVector();
|
|
nif->getVector();
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
class NiUVData : public Record
|
|
{
|
|
public:
|
|
void read(NIFFile *nif)
|
|
{
|
|
// TODO: This is claimed to be a "float animation key", which is
|
|
// also used in FloatData and KeyframeData. We could probably
|
|
// reuse and refactor a lot of this if we actually use it at some
|
|
// point.
|
|
|
|
for(int i=0; i<2; i++)
|
|
{
|
|
int count = nif->getInt();
|
|
|
|
if(count)
|
|
{
|
|
nif->getInt(); // always 2
|
|
nif->getArrayLen<Vector4>(count); // Really one time float + one vector
|
|
}
|
|
}
|
|
// Always 0
|
|
nif->getInt();
|
|
nif->getInt();
|
|
}
|
|
};
|
|
|
|
class NiFloatData : public Record
|
|
{
|
|
public:
|
|
void read(NIFFile *nif)
|
|
{
|
|
int count = nif->getInt();
|
|
nif->getInt(); // always 2
|
|
nif->getArrayLen<Vector4>(count); // Really one time float + one vector
|
|
}
|
|
};
|
|
|
|
class NiPixelData : public Record
|
|
{
|
|
public:
|
|
unsigned int rmask, gmask, bmask, amask;
|
|
int bpp, mips;
|
|
|
|
void read(NIFFile *nif)
|
|
{
|
|
nif->getInt(); // always 0 or 1
|
|
|
|
rmask = nif->getInt(); // usually 0xff
|
|
gmask = nif->getInt(); // usually 0xff00
|
|
bmask = nif->getInt(); // usually 0xff0000
|
|
amask = nif->getInt(); // usually 0xff000000 or zero
|
|
|
|
bpp = nif->getInt();
|
|
|
|
// Unknown
|
|
nif->skip(12);
|
|
|
|
mips = nif->getInt();
|
|
|
|
// Bytes per pixel, should be bpp * 8
|
|
/*int bytes =*/ nif->getInt();
|
|
|
|
for(int i=0; i<mips; i++)
|
|
{
|
|
// Image size and offset in the following data field
|
|
/*int x =*/ nif->getInt();
|
|
/*int y =*/ nif->getInt();
|
|
/*int offset =*/ nif->getInt();
|
|
}
|
|
|
|
// Skip the data
|
|
unsigned int dataSize = nif->getInt();
|
|
nif->skip(dataSize);
|
|
}
|
|
};
|
|
|
|
class NiColorData : public Record
|
|
{
|
|
public:
|
|
struct ColorData
|
|
{
|
|
float time;
|
|
Vector4 rgba;
|
|
};
|
|
|
|
void read(NIFFile *nif)
|
|
{
|
|
int count = nif->getInt();
|
|
nif->getInt(); // always 1
|
|
|
|
// Skip the data
|
|
assert(sizeof(ColorData) == 4*5);
|
|
nif->skip(sizeof(ColorData) * count);
|
|
}
|
|
};
|
|
|
|
class NiVisData : public Record
|
|
{
|
|
public:
|
|
void read(NIFFile *nif)
|
|
{
|
|
int count = nif->getInt();
|
|
/*
|
|
Each VisData consists of:
|
|
float time;
|
|
byte isSet;
|
|
|
|
If you implement this, make sure you use a packed struct
|
|
(sizeof==5), or read each element individually.
|
|
*/
|
|
nif->skip(count*5);
|
|
}
|
|
};
|
|
|
|
class NiSkinInstance : public Record
|
|
{
|
|
public:
|
|
NiSkinDataPtr data;
|
|
NodePtr root;
|
|
NodeList bones;
|
|
|
|
void read(NIFFile *nif)
|
|
{
|
|
data.read(nif);
|
|
root.read(nif);
|
|
bones.read(nif);
|
|
|
|
if(data.empty() || root.empty())
|
|
nif->fail("NiSkinInstance missing root or data");
|
|
}
|
|
|
|
void post(NIFFile *nif);
|
|
};
|
|
|
|
class NiSkinData : public Record
|
|
{
|
|
public:
|
|
// This is to make sure the structs are packed, ie. that the
|
|
// compiler doesn't mess them up with extra alignment bytes.
|
|
#pragma pack(push)
|
|
#pragma pack(1)
|
|
|
|
struct BoneTrafo
|
|
{
|
|
Matrix rotation; // Rotation offset from bone?
|
|
Vector trans; // Translation
|
|
float scale; // Probably scale (always 1)
|
|
};
|
|
|
|
struct VertWeight
|
|
{
|
|
short vertex;
|
|
float weight;
|
|
};
|
|
#pragma pack(pop)
|
|
|
|
struct BoneInfo
|
|
{
|
|
const BoneTrafo *trafo;
|
|
const Vector4 *unknown;
|
|
SliceArray<VertWeight> weights;
|
|
};
|
|
|
|
const BoneTrafo *trafo;
|
|
std::vector<BoneInfo> bones;
|
|
|
|
void read(NIFFile *nif)
|
|
{
|
|
assert(sizeof(BoneTrafo) == 4*(9+3+1));
|
|
assert(sizeof(VertWeight) == 6);
|
|
|
|
trafo = nif->getPtr<BoneTrafo>();
|
|
|
|
int boneNum = nif->getInt();
|
|
nif->getInt(); // -1
|
|
|
|
bones.resize(boneNum);
|
|
|
|
for(int i=0;i<boneNum;i++)
|
|
{
|
|
BoneInfo &bi = bones[i];
|
|
|
|
bi.trafo = nif->getPtr<BoneTrafo>();
|
|
bi.unknown = nif->getVector4();
|
|
|
|
// Number of vertex weights
|
|
int count = nif->getShort();
|
|
bi.weights = nif->getArrayLen<VertWeight>(count);
|
|
}
|
|
}
|
|
};
|
|
|
|
class NiMorphData : public Record
|
|
{
|
|
public:
|
|
void read(NIFFile *nif)
|
|
{
|
|
int morphCount = nif->getInt();
|
|
int vertCount = nif->getInt();
|
|
nif->getByte();
|
|
|
|
for(int i=0; i<morphCount; i++)
|
|
{
|
|
int magic = nif->getInt();
|
|
nif->getInt();
|
|
if(magic)
|
|
// Time, data, forward, backward tangents
|
|
nif->getFloatLen(4*magic);
|
|
|
|
nif->getFloatLen(vertCount*3);
|
|
}
|
|
}
|
|
};
|
|
|
|
class NiKeyframeData : public Record
|
|
{
|
|
public:
|
|
void read(NIFFile *nif)
|
|
{
|
|
// Rotations first
|
|
int count = nif->getInt();
|
|
if(count)
|
|
{
|
|
int type = nif->getInt();
|
|
|
|
if(type == 1)
|
|
nif->skip(count*4*5); // time + quaternion
|
|
else if(type == 3)
|
|
nif->skip(count*4*8); // rot1 + tension+bias+continuity
|
|
else if(type == 4)
|
|
{
|
|
for(int j=0;j<count;j++)
|
|
{
|
|
nif->getFloat(); // time
|
|
for(int i=0; i<3; i++)
|
|
{
|
|
int cnt = nif->getInt();
|
|
int type = nif->getInt();
|
|
if(type == 1)
|
|
nif->skip(cnt*4*2); // time + unknown
|
|
else if(type == 2)
|
|
nif->skip(cnt*4*4); // time + unknown vector
|
|
else nif->fail("Unknown sub-rotation type");
|
|
}
|
|
}
|
|
}
|
|
else nif->fail("Unknown rotation type in NiKeyframeData");
|
|
}
|
|
|
|
// Then translation
|
|
count = nif->getInt();
|
|
if(count)
|
|
{
|
|
int type = nif->getInt();
|
|
|
|
if(type == 1) nif->getFloatLen(count*4); // time + translation
|
|
else if(type == 2)
|
|
nif->getFloatLen(count*10); // trans1 + forward + backward
|
|
else if(type == 3)
|
|
nif->getFloatLen(count*7); // trans1 + tension,bias,continuity
|
|
else nif->fail("Unknown translation type");
|
|
}
|
|
|
|
// Finally, scalings
|
|
count = nif->getInt();
|
|
if(count)
|
|
{
|
|
int type = nif->getInt();
|
|
|
|
int size;
|
|
if(type == 1) size = 2; // time+scale
|
|
else if(type == 2) size = 4; // 1 + forward + backward (floats)
|
|
else if(type == 3) size = 5; // 1 + tbc
|
|
else nif->fail("Unknown scaling type");
|
|
nif->getFloatLen(count*size);
|
|
}
|
|
}
|
|
};
|
|
|
|
} // Namespace
|
|
#endif
|