func (group *Group) Unpack(res *resource.Container) error {
res.Parse(&group.GroupHeader)
/* Read any texture dictionary */
if group.TexturePtr.Valid() {
if err := res.Detour(group.TexturePtr, func() error {
group.Texture = new(texture.Texture)
return group.Texture.Unpack(res)
}); err != nil {
return err
}
}
/* Read our shader headers */
group.Shaders = make([]*Shader, group.Count)
for i := range group.Shaders {
group.Shaders[i] = new(Shader)
}
/* Read the shaders */
for i, shader := range group.Shaders {
if err := group.Detour(res, i, func() error {
if err := shader.Unpack(res); err != nil {
return err
}
return nil
}); err != nil {
log.Printf("Error reading shader %v\n", i)
return err
}
}
return nil
}
func (shader *Shader) Unpack(res *resource.Container) error {
res.Parse(&shader.Header)
shader.Parameters = make([]*Parameter, shader.ParameterCount)
for i := range shader.Parameters {
shader.Parameters[i] = new(Parameter)
}
if err := res.Detour(shader.ParameterList, func() error {
for _, param := range shader.Parameters {
if err := param.Unpack(res); err != nil {
return err
}
if param.parameter != nil {
var err error
switch param.Type {
case ParamDiffuseBitmap:
shader.DiffusePath, err = param.parameter.(*BitmapParameter).Get(res)
case ParamNormalBitmap:
shader.NormalPath, err = param.parameter.(*BitmapParameter).Get(res)
}
if err != nil {
return err
}
}
}
return nil
}); err != nil {
return err
}
return nil
}
func (buf *IndexBuffer) Unpack(res *resource.Container) error {
buf.Stride = 3 * 2 // 3*uint16 /* is this stored anywhere? */
res.Parse(&buf.IndexHeader)
buf.Index = make([]*types.Tri, buf.Count/3)
for i := range buf.Index {
buf.Index[i] = new(types.Tri)
}
if err := res.Detour(buf.Buffer, func() error {
buffer := make([]byte, buf.Stride)
reader := bytes.NewReader(buffer)
for _, idx := range buf.Index {
/* Read the index into our local buffer */
if size, err := res.Read(buffer); size != buf.Stride || err != nil {
return err
}
/* Parse out the info we can */
if err := binary.Read(reader, binary.BigEndian, idx); err != nil {
return err
}
reader.Seek(0, 0)
}
return nil
}); err != nil {
return err
}
return nil
}
func (buf *VertexBuffer) Unpack(res *resource.Container) error {
res.Parse(&buf.VertexHeader)
if err := res.Detour(buf.Info, func() error {
res.Parse(&buf.VertexInfo)
return nil
}); err != nil {
return err
}
buf.Vertex = make([]*Vertex, buf.Count)
for i := range buf.Vertex {
buf.Vertex[i] = new(Vertex)
}
if err := res.Detour(buf.Buffer, func() error {
for _, vert := range buf.Vertex {
if err := vert.Unpack(res, buf); err != nil {
return err
}
}
return nil
}); err != nil {
return err
}
return nil
}
func (model *Model) Unpack(res *resource.Container) error {
res.Parse(&model.Header)
geomCollection := &model.Header.GeometryCollection
model.Geometry = make([]*Geometry, geomCollection.Count)
for i := range model.Geometry {
model.Geometry[i] = new(Geometry)
}
err := geomCollection.For(res, func(i int) error {
geometry := model.Geometry[i]
if err := geometry.Unpack(res); err != nil {
return err
}
if model.Header.ShaderMappings.Valid() {
if err := res.PeekElem(model.Header.ShaderMappings, i, &geometry.Shader); err != nil {
return err
}
} else {
geometry.Shader = ShaderNone
}
return nil
})
if err != nil {
return err
}
return nil
}
func (param *Parameter) Unpack(res *resource.Container) error {
res.Parse(¶m.ParameterHeader)
if !param.Offset.Valid() {
return nil
}
switch param.Type {
case ParamDiffuseBitmap, ParamNormalBitmap:
bitmap := new(BitmapParameter)
if err := res.Detour(param.Offset, func() error {
res.Parse(bitmap)
param.parameter = bitmap
return nil
}); err != nil {
return err
}
default:
/* unsupported parameter. don't bother giving an error for now */
param.parameter = nil
}
return nil
}
func (texture *Texture) Unpack(res *resource.Container) error {
res.Parse(&texture.Header)
texture.Bitmaps = make(Bitmaps, texture.Header.Bitmaps.Capacity)
if err := texture.Bitmaps.Unpack(res, &texture.Header.Bitmaps); err != nil {
return err
}
return nil
}
func (dict *Dictionary) Unpack(res *resource.Container) error {
res.Parse(&dict.Header)
dict.DrawableCollection.PointerCollection = dict.Header.DrawableCollection
if err := dict.DrawableCollection.Unpack(res); err != nil {
return err
}
return nil
}
func (frag *FragType) Unpack(res *resource.Container) error {
res.Parse(&frag.Header)
if err := res.Detour(frag.Header.Drawable, func() error {
frag.Drawable.Unpack(res)
return nil
}); err != nil {
return err
}
return nil
}
func (b *Bitmap) Unpack(res *resource.Container) error {
res.Parse(&b.Header)
if b.Header.Title.Valid() {
res.Detour(b.Header.Title, func() error {
res.Parse(&b.Title)
return nil
})
}
return nil
}
func (vol *Volume) unpackVertices(res *resource.Container) error {
for i := 0; i < int(vol.VertexCount); i++ {
iVec := new(types.Vec3i)
res.Parse(iVec)
x := (float32(iVec[0]) * vol.ScaleFactor[0]) + vol.Offset[0]
y := (float32(iVec[1]) * vol.ScaleFactor[1]) + vol.Offset[1]
z := (float32(iVec[2]) * vol.ScaleFactor[2]) + vol.Offset[2]
v := mathgl.Vec4f{x, y, z, 1.0}
vol.AddVert4f(v)
}
return nil
}
func (vol *Volume) Unpack(res *resource.Container) error {
res.Parse(&vol.VolumeHeader)
vol.Mesh = export.NewMesh()
res.Detour(vol.VerticesAddr, func() error {
return vol.unpackVertices(res)
})
res.Detour(vol.IndicesAddr, func() error {
return vol.unpackFaces(res)
})
return nil
}
func (bmp *BitmapParameter) Get(res *resource.Container) (string, error) {
if !bmp.Path.Valid() {
return "", nil
}
var path string
if err := res.Detour(bmp.Path, func() error {
res.Parse(&path)
return nil
}); err != nil {
return "", err
}
return path, nil
}
func (geom *Geometry) Unpack(res *resource.Container) error {
res.Parse(&geom.GeometryHeader)
if err := res.Detour(geom.VertexBuffer, func() error {
return geom.Vertices.Unpack(res)
}); err != nil {
log.Printf("error parsing vertex buffer")
}
if err := res.Detour(geom.IndexBuffer, func() error {
return geom.Indices.Unpack(res)
}); err != nil {
log.Printf("error parsing index buffer")
}
return nil
}
func (nodes *Nodes) Unpack(res *resource.Container) error {
res.Parse(&nodes.NodesHeader)
var err error
nodes.Volumes = make([]*Volume, nodes.Capacity)
volCollection := resource.PointerCollection{
Addr: nodes.BoundsTable,
Count: nodes.Count,
Capacity: nodes.Capacity,
}
volInfoCollection := resource.Collection{
Addr: nodes.VolumeInfo,
Count: nodes.Count,
Capacity: nodes.Capacity,
}
err = volInfoCollection.For(res, func(i int) error {
nodes.Volumes[i] = new(Volume)
if err := nodes.Volumes[i].VolumeInfo.Unpack(res); err != nil {
return err
}
return nil
})
if err != nil {
return err
}
err = volCollection.For(res, func(i int) error {
return nodes.Volumes[i].Unpack(res)
})
if err != nil {
return err
}
nodes.Model = export.NewModel()
for _, vol := range nodes.Volumes {
nodes.Model.AddMesh(vol.Mesh)
}
return nil
}
func (col *ModelCollection) Unpack(res *resource.Container) error {
res.Parse(&col.PointerCollection)
col.Models = make([]*Model, col.Count)
for i := range col.Models {
col.Models[i] = new(Model)
}
/* Read our model headers */
for i, model := range col.Models {
if err := col.Detour(res, i, func() error {
if err := model.Unpack(res); err != nil {
log.Printf("Error reading model")
return err
}
return nil
}); err != nil {
return err
}
}
return nil
}
func (vol *Volume) unpackFaces(res *resource.Container) error {
fixIndex := func(c uint16) uint16 {
c &= 0x7FFF
return c
}
for i := 0; i < int(vol.IndexCount); i++ {
var polygonType, junk uint16
res.Parse(&junk)
res.Parse(&polygonType)
idxValues := make([]uint16, 6)
res.Parse(idxValues)
debug := func(junk, polyType uint16, idxValues []uint16) {
fmt.Printf("%.4x ", junk)
fmt.Printf("%.4x ", polyType)
for _, i := range idxValues {
fmt.Printf("%.4x ", i)
}
fmt.Printf("\n")
}
polygonType &= 0xF
if polygonType == 0x4 {
// debug(junk, polygonType, idxValues)
} else if polygonType == 0x3 || polygonType == 0xB {
/* cube, 4 points specified */
a := fixIndex(idxValues[0])
b := fixIndex(idxValues[1])
c := fixIndex(idxValues[2])
d := fixIndex(idxValues[3])
buildCube(vol.Mesh, a, b, c, d)
} else if polygonType == 0x2 {
/* seems to be two points */
a := fixIndex(junk)
b := fixIndex(idxValues[2])
traceVerts(vol.Mesh, a, b)
} else if polygonType == 0x1 {
// debug(junk, polygonType, idxValues)
} else if polygonType == 0x0 || polygonType == 0x8 { /* it's probably a triangle */
a := fixIndex(idxValues[0])
b := fixIndex(idxValues[1])
c := fixIndex(idxValues[2])
vol.AddFace(types.Tri{
A: a,
B: b,
C: c,
})
} else {
debug(junk, polygonType, idxValues)
}
}
return nil
}
func (info *VolumeInfo) Unpack(res *resource.Container) error {
res.Parse(&info.VolumeInfoHeader)
return nil
}
func (drawable *Drawable) Unpack(res *resource.Container) error {
res.Parse(&drawable.Header)
drawable.Model = export.NewModel()
/* unpack */
if drawable.Header.ShaderTable.Valid() {
if err := res.Detour(drawable.Header.ShaderTable, func() error {
return drawable.Shaders.Unpack(res)
}); err != nil {
return err
}
}
if err := res.Detour(drawable.Header.ModelCollection, func() error {
return drawable.Models.Unpack(res)
}); err != nil {
return err
}
if drawable.Header.Title.Valid() {
if err := res.Detour(drawable.Header.Title, func() error {
res.Parse(&drawable.Title)
drawable.Title = drawable.Title[:strings.LastIndex(drawable.Title, ".")]
return nil
}); err != nil {
return err
}
} else {
drawable.Title = fmt.Sprintf("unnamed_%v", NextUnnamedIndex)
NextUnnamedIndex++
}
/* Load everything into our exportable */
drawable.Model.Name = drawable.Title
for _, shader := range drawable.Shaders.Shaders {
material := export.NewMaterial()
if shader.DiffusePath != "" {
material.DiffBitmap = fmt.Sprintf("%v.dds", shader.DiffusePath)
}
drawable.Model.AddMaterial(material)
}
for _, model := range drawable.Models.Models {
for _, geom := range model.Geometry {
mesh := export.NewMesh()
mesh.Material = int(geom.Shader)
for _, vert := range geom.Vertices.Vertex {
/* Even if a feature isn't supported, the nil value should be fine */
newVert := export.Vertex{
Pos: mathgl.Vec4f{
vert.WorldCoord[0],
vert.WorldCoord[1],
vert.WorldCoord[2],
1.0,
},
UV: mathgl.Vec2f{
vert.UV0.U.Value(),
(-vert.UV0.V.Value()) + 1,
},
Colour: vert.Colour,
}
mesh.AddVert(newVert)
}
mesh.Format = geom.Vertices.Format
for _, face := range geom.Indices.Index {
mesh.AddFace(*face)
}
drawable.Model.AddMesh(mesh)
}
}
return nil
}