public static Envelope ReadEnvelope(ChunkReader reader)
{
var env = new Envelope(); // allocate the Envelope structure
env.Index = reader.ReadVariableLengthIndex(); // index
EnvelopeKey lastKey = null;
while (reader.BytesLeft > 0)
{
// process subchunks as they're encountered
var id = reader.ReadID<EnvelopeType>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
case EnvelopeType.ID_TYPE:
{
env.Type = subChunkReader.ReadUInt16();
break;
}
case EnvelopeType.ID_NAME:
{
env.Name = subChunkReader.ReadString();
break;
}
case EnvelopeType.ID_PRE:
{
env.PreBehavior = (EvalType)subChunkReader.ReadUInt16();
break;
}
case EnvelopeType.ID_POST:
{
env.PostBehavior = (EvalType)subChunkReader.ReadUInt16();
break;
}
case EnvelopeType.ID_KEY:
{
lastKey = new EnvelopeKey(
subChunkReader.ReadSingle(), // time
subChunkReader.ReadSingle() // value
);
env.Keys.Add(lastKey);
//TODO: not sort all the time
env.Keys.Sort((Comparison<EnvelopeKey>)delegate(EnvelopeKey k1, EnvelopeKey k2)
{
return k1.Time > k2.Time ? 1 : k1.Time < k2.Time ? -1 : 0;
});
break;
}
case EnvelopeType.ID_SPAN:
{
if (lastKey == null) // We should've encountered an ID_KEY before an ID_SPAN
throw new Exception("Key not defined"); //TODO: make proper exception class
lastKey.Shape = subChunkReader.ReadID<KeyShape>();
switch (lastKey.Shape)
{
case KeyShape.ID_TCB:
{
lastKey.Tension = subChunkReader.ReadSingle();
lastKey.Continuity = subChunkReader.ReadSingle();
lastKey.Bias = subChunkReader.ReadSingle();
break;
}
case KeyShape.ID_BEZI:
case KeyShape.ID_HERM:
case KeyShape.ID_BEZ2:
{
Array.Clear(lastKey.param, 0, lastKey.param.Length);
int i = 0;
while (i < 4 && subChunkReader.BytesLeft > 0)
{
lastKey.param[i] = subChunkReader.ReadSingle();
i++;
}
break;
}
case KeyShape.ID_LINE:
break;
default:
Console.WriteLine("Unknown envelope span shape type " + reader.GetIDString((uint)lastKey.Shape));
break;
}
break;
}
case EnvelopeType.ID_CHAN:
{
var plug = new LightwavePlugin();
plug.name = subChunkReader.ReadString();
plug.flags = subChunkReader.ReadUInt16();
plug.data = subChunkReader.ReadBytes((uint)reader.BytesLeft);
env.ChannelFilters.Add(plug);
break;
}
default:
Console.WriteLine("Unknown envelope type " + reader.GetIDString((uint)id));
break;
}
}
}
return env;
}
// LWOB
public static Surface ReadSurface5(ChunkReader reader, LightwaveObject obj)
{
var surf = new Surface();
surf.name = reader.ReadString();
Texture tex = null;
LightwavePlugin shdr = null;
float[] v = new float[3];
uint flags = 0;
// process subchunks as they're encountered
while (reader.BytesLeft > 0)
{
var id = reader.ReadID<SurfaceParameter>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
case SurfaceParameter.ID_COLR:
{
surf.color.Red = subChunkReader.ReadUInt8() / 255.0f;
surf.color.Green = subChunkReader.ReadUInt8() / 255.0f;
surf.color.Blue = subChunkReader.ReadUInt8() / 255.0f;
break;
}
case SurfaceParameter.ID_FLAG:
{
flags = subChunkReader.ReadUInt16();
if ((flags & 4) != 0) surf.smooth = 1.56207f;
if ((flags & 8) != 0) surf.color_hilite.value = 1.0f;
if ((flags & 16) != 0) surf.color_filter.value = 1.0f;
if ((flags & 128) != 0) surf.dif_sharp.value = 0.5f;
if ((flags & 256) != 0) surf.sideflags = 3;
if ((flags & 512) != 0) surf.add_trans.value = 1.0f;
break;
}
case SurfaceParameter.ID_LUMI:
{
surf.luminosity.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_VLUM:
{
surf.luminosity.Value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_DIFF:
{
surf.diffuse.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_VDIF:
{
surf.diffuse.Value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_SPEC:
{
surf.specularity.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_VSPC:
{
surf.specularity.Value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_GLOS:
{
surf.glossiness.Value = (float)Math.Log(subChunkReader.ReadUInt16()) / 20.7944f;
break;
}
case SurfaceParameter.ID_SMAN:
{
surf.smooth = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_REFL:
{
surf.reflection.values.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_RFLT:
{
surf.reflection.options = subChunkReader.ReadUInt16();
break;
}
case SurfaceParameter.ID_RIMG:
{
var s = subChunkReader.ReadString();
surf.reflection.clip_index = AddClip(s, obj.Clips);
surf.reflection.options = 3;
break;
}
case SurfaceParameter.ID_RSAN:
{
surf.reflection.seam_angle = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TRAN:
{
surf.transparency.values.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_RIND:
{
surf.eta.Value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_BTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.bump.textures.Add(tex);
break;
}
case SurfaceParameter.ID_CTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.color.textures.Add(tex);
break;
}
case SurfaceParameter.ID_DTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.diffuse.textures.Add(tex);
break;
}
case SurfaceParameter.ID_LTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.luminosity.textures.Add(tex);
break;
}
case SurfaceParameter.ID_RTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.reflection.values.textures.Add(tex);
break;
}
case SurfaceParameter.ID_STEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.specularity.textures.Add(tex);
break;
}
case SurfaceParameter.ID_TTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.transparency.values.textures.Add(tex);
break;
}
case SurfaceParameter.ID_TFLG:
{
if (tex == null)
return null;
flags = subChunkReader.ReadUInt16();
int i = 0;
if ((flags & 1) != 0) i = 0;
if ((flags & 2) != 0) i = 1;
if ((flags & 4) != 0) i = 2;
tex.axis = (ushort)i;
if (tex.Type == TextureType.ID_IMAP)
tex.imap.axis = i;
else
tex.proc.axis = i;
if ((flags & 8) != 0) tex.tmap.CoordinateSystem = 1;
if ((flags & 16) != 0) tex.negative = 1;
if ((flags & 32) != 0) tex.imap.pblend = 1;
if ((flags & 64) != 0)
{
tex.imap.aa_strength = 1.0f;
tex.imap.aas_flags = 1;
}
break;
}
case SurfaceParameter.ID_TSIZ:
{
tex.tmap.Size.values[0] = subChunkReader.ReadSingle();
tex.tmap.Size.values[1] = subChunkReader.ReadSingle();
tex.tmap.Size.values[2] = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TCTR:
{
tex.tmap.Center.values[0] = subChunkReader.ReadSingle();
tex.tmap.Center.values[1] = subChunkReader.ReadSingle();
tex.tmap.Center.values[2] = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TFAL:
{
tex.tmap.FallOff.values[0] = subChunkReader.ReadSingle();
tex.tmap.FallOff.values[1] = subChunkReader.ReadSingle();
tex.tmap.FallOff.values[2] = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TVEL:
{
for (var i = 0; i < 3; i++)
v[i] = subChunkReader.ReadSingle();
tex.tmap.Center.envelope_index = AddTextureVelocity(tex.tmap.Center.values, v, obj.Envelopes);
break;
}
case SurfaceParameter.ID_TCLR:
{
if (tex.Type == TextureType.ID_PROC)
{
tex.proc.value_0 = subChunkReader.ReadUInt8() / 255.0f;
tex.proc.value_1 = subChunkReader.ReadUInt8() / 255.0f;
tex.proc.value_2 = subChunkReader.ReadUInt8() / 255.0f;
}
break;
}
case SurfaceParameter.ID_TVAL:
{
tex.proc.value_0 = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_TAMP:
{
if (tex.Type == TextureType.ID_IMAP)
tex.imap.amplitude.value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TIMG:
{
var s = subChunkReader.ReadString();
tex.imap.clip_index = AddClip(s, obj.Clips);
break;
}
case SurfaceParameter.ID_TAAS:
{
tex.imap.aa_strength = subChunkReader.ReadSingle();
tex.imap.aas_flags = 1;
break;
}
case SurfaceParameter.ID_TREF:
{
tex.tmap.ReferenceObject = subChunkReader.ReadString((uint)sz);//.getbytes((uint)sz);
break;
}
case SurfaceParameter.ID_TOPC:
{
tex.opacity.value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TFP0:
{
if (tex.Type == TextureType.ID_IMAP)
tex.imap.wrapw.value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TFP1:
{
if (tex.Type == TextureType.ID_IMAP)
tex.imap.wraph.value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_SHDR:
{
shdr = new LightwavePlugin();
if (shdr == null)
return null;
shdr.name = subChunkReader.ReadString((uint)sz);
surf.shader.Add(shdr);
break;
}
case SurfaceParameter.ID_SDAT:
{
if (shdr == null)
return null;
shdr.data = subChunkReader.ReadBytes(sz);
break;
}
default:
Console.WriteLine("Unknown surface parameter type " + reader.GetIDString((uint)id));
break;
}
}
}
return surf;
}
public static Clip ReadClip(ChunkReader reader)
{
// index
var index = reader.ReadUInt32();
// first subchunk header
var type = reader.ReadID<ClipType>();
var subchunk_size = reader.ReadUInt16();
subchunk_size += (ushort)(subchunk_size & 1);
Clip clip = null;
using (var subChunkReader = reader.GetSubChunk(subchunk_size))
{
switch (type)
{
case ClipType.ID_STIL:
{
var tmp_clip = new ClipStill(index);
tmp_clip.Name = subChunkReader.ReadString();
clip = tmp_clip;
break;
}
case ClipType.ID_ISEQ:
{
var tmp_clip = new ClipSequence(index);
tmp_clip.Digits = subChunkReader.ReadUInt8();
tmp_clip.Flags = subChunkReader.ReadUInt8();
tmp_clip.Offset = subChunkReader.ReadSInt16();
subChunkReader.ReadUInt16(); // Legacy Cruft: Nothing to see here
tmp_clip.Start = subChunkReader.ReadSInt16();
tmp_clip.End = subChunkReader.ReadSInt16();
tmp_clip.Prefix = subChunkReader.ReadString();
tmp_clip.Suffix = subChunkReader.ReadString();
clip = tmp_clip;
break;
}
case ClipType.ID_ANIM:
{
var tmp_clip = new ClipAnim(index);
tmp_clip.Name = subChunkReader.ReadString();
tmp_clip.Server = subChunkReader.ReadString();
tmp_clip.Data = subChunkReader.ReadBytes((uint)subChunkReader.BytesLeft);
clip = tmp_clip;
break;
}
case ClipType.ID_XREF:
{
var tmp_clip = new ClipCloned(index);
tmp_clip.clip_reference_index = subChunkReader.ReadUInt32();
tmp_clip.Name = subChunkReader.ReadString();
clip = tmp_clip;
break;
}
case ClipType.ID_STCC:
{
var tmp_clip = new ClipColorCycle(index);
tmp_clip.lo = subChunkReader.ReadSInt16();
tmp_clip.hi = subChunkReader.ReadSInt16();
tmp_clip.Name = subChunkReader.ReadString();
clip = tmp_clip;
break;
}
default:
throw new Exception("Unknown Clip type"); // TODO: create proper exception class for this ...
}
}
while (reader.BytesLeft > 0)
{
// process subchunks as they're encountered
var id = reader.ReadID<ClipDataType>();
subchunk_size = reader.ReadUInt16();
subchunk_size += (ushort)(subchunk_size & 1);
using (var subChunkReader = reader.GetSubChunk(subchunk_size))
{
switch (id)
{
//case ClipDataType.ID_CLRS: // Color Space RGB - CLRS { flags[U2], colorspace[U2], filename[FNAM0] }
//case ClipDataType.ID_CLRA: // Color Space Alpha - CLRA { flags[U2], colorspace[U2], filename[FNAM0] }
//case ClipDataType.ID_FILT: // Image Filtering - FILT { flags[U2] }
//case ClipDataType.ID_DITH: // Image Dithering - DITH { flags[U2] }
// Contrast - CONT { contrast-delta[FP4], envelope[VX] }
case ClipDataType.ID_CONT: { clip.Contrast.value = subChunkReader.ReadSingle(); clip.Contrast.envelope_index = subChunkReader.ReadVariableLengthIndex(); break; }
// Brightness - BRIT { brightness-delta[FP4], envelope[VX] }
case ClipDataType.ID_BRIT: { clip.Brightness.value = subChunkReader.ReadSingle(); clip.Brightness.envelope_index = subChunkReader.ReadVariableLengthIndex(); break; }
// Saturation - SATR { saturation-delta[FP4], envelope[VX] }
case ClipDataType.ID_SATR: { clip.Saturation.value = subChunkReader.ReadSingle(); clip.Saturation.envelope_index = subChunkReader.ReadVariableLengthIndex(); break; }
// Hue - HUE { hue-rotation[FP4], envelope[VX] }
case ClipDataType.ID_HUE: { clip.Hue.value = subChunkReader.ReadSingle(); clip.Hue.envelope_index = subChunkReader.ReadVariableLengthIndex(); break; }
// Gamma Correction - GAMM { gamma[F4], envelope[VX] }
case ClipDataType.ID_GAMM: { clip.Gamma.value = subChunkReader.ReadSingle(); clip.Gamma.envelope_index = subChunkReader.ReadVariableLengthIndex(); break; }
// Negative - NEGA { enable[U2] }
case ClipDataType.ID_NEGA: { clip.Negative = subChunkReader.ReadUInt16() != 0; break; }
// Time - TIME { start-time[FP4], duration[FP4], frame-rate[FP4] }
case ClipDataType.ID_TIME:
{
clip.StartTime = subChunkReader.ReadSingle();
clip.Duration = subChunkReader.ReadSingle();
clip.FrameRate = subChunkReader.ReadSingle();
break;
}
// Plug-in Image Filters - IFLT { server-name[S0], flags[U2], data[...] }
case ClipDataType.ID_IFLT:
// Plug-in Pixel Filters - PFLT { server-name[S0], flags[U2], data[...] }
case ClipDataType.ID_PFLT:
{
var filt = new LightwavePlugin();
filt.name = subChunkReader.ReadString();
filt.flags = subChunkReader.ReadUInt16();
filt.data = subChunkReader.ReadBytes((uint)subChunkReader.BytesLeft);
if (id == ClipDataType.ID_IFLT)
clip.ImageFilters.Add(filt);
else
clip.PixelFilters.Add(filt);
break;
}
case ClipDataType.ID_FLAG: // not mentioned in documentation ...
var flags = subChunkReader.ReadUInt16(); // unknown what they mean ...
break;
default:
Console.WriteLine("Unknown clip type " + reader.GetIDString((uint)id));
break;
}
}
}
return clip;
}
public static LightwavePlugin ReadShader(ChunkReader reader)
{
var shader = new LightwavePlugin();
var hsz = reader.ReadUInt16(); // Q: example code does this, but can't find this in documentation?
shader.ord = reader.ReadString();
using (var headerReader = reader.GetSubChunk(hsz))
{
while (headerReader.BytesLeft > 0)
{
var id = headerReader.ReadID<PluginType>();
var sz = headerReader.ReadUInt16();
sz += (ushort)(sz & 1);
hsz -= sz;
if (id == PluginType.ID_ENAB)
{
shader.flags = headerReader.ReadUInt16();
break;
}
}
}
while (reader.BytesLeft > 0)
{
var id = reader.ReadID<PluginType>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
case PluginType.ID_FUNC:
{
shader.name = subChunkReader.ReadString();
shader.data = subChunkReader.ReadBytes((uint)subChunkReader.BytesLeft);
break;
}
default:
//Console.WriteLine("Unknown shader type " + reader.GetIDString((uint)id));
break;
}
}
}
return shader;
}
