public VTX1(EndianBinaryReader reader, int offset, BMDInfo modelstats = null)
{
Attributes = new VertexData();
StorageFormats = new SortedDictionary <GXVertexAttribute, Tuple <GXDataType, byte> >();
reader.BaseStream.Seek(offset, System.IO.SeekOrigin.Begin);
reader.SkipInt32();
int vtx1Size = reader.ReadInt32();
int attributeHeaderOffset = reader.ReadInt32();
if (modelstats != null)
{
modelstats.VTX1Size = vtx1Size;
}
int[] attribDataOffsets = new int[13];
for (int i = 0; i < 13; i++)
{
attribDataOffsets[i] = reader.ReadInt32();
}
GXVertexAttribute attrib = (GXVertexAttribute)reader.ReadInt32();
while (attrib != GXVertexAttribute.Null)
{
GXComponentCount componentCount = (GXComponentCount)reader.ReadInt32();
GXDataType componentType = (GXDataType)reader.ReadInt32();
byte fractionalBitCount = reader.ReadByte();
StorageFormats.Add(attrib, new Tuple <GXDataType, byte>(componentType, fractionalBitCount));
reader.Skip(3);
long curPos = reader.BaseStream.Position;
int attribDataSize = 0;
int attribOffset = GetAttributeDataOffset(attribDataOffsets, vtx1Size, attrib, out attribDataSize);
int attribCount = GetAttributeDataCount(attribDataSize, attrib, componentType, componentCount);
Attributes.SetAttributeData(attrib, LoadAttributeData(reader, offset + attribOffset, attribCount, fractionalBitCount, attrib, componentType, componentCount));
reader.BaseStream.Seek(curPos, System.IO.SeekOrigin.Begin);
attrib = (GXVertexAttribute)reader.ReadInt32();
}
reader.BaseStream.Seek(offset + vtx1Size, System.IO.SeekOrigin.Begin);
}
private int GetAttributeDataCount(int size, GXVertexAttribute attribute, GXDataType dataType, GXComponentCount compCount)
{
int compCnt = 0;
int compStride = 0;
if (attribute == GXVertexAttribute.Color0 || attribute == GXVertexAttribute.Color1)
{
switch (dataType)
{
case GXDataType.RGB565:
case GXDataType.RGBA4:
compCnt = 1;
compStride = 2;
break;
case GXDataType.RGB8:
case GXDataType.RGBX8:
case GXDataType.RGBA6:
case GXDataType.RGBA8:
compCnt = 4;
compStride = 1;
break;
}
}
else
{
switch (dataType)
{
case GXDataType.Unsigned8:
case GXDataType.Signed8:
compStride = 1;
break;
case GXDataType.Unsigned16:
case GXDataType.Signed16:
compStride = 2;
break;
case GXDataType.Float32:
compStride = 4;
break;
}
switch (attribute)
{
case GXVertexAttribute.Position:
if (compCount == GXComponentCount.Position_XY)
{
compCnt = 2;
}
else if (compCount == GXComponentCount.Position_XYZ)
{
compCnt = 3;
}
break;
case GXVertexAttribute.Normal:
if (compCount == GXComponentCount.Normal_XYZ)
{
compCnt = 3;
}
break;
case GXVertexAttribute.Tex0:
case GXVertexAttribute.Tex1:
case GXVertexAttribute.Tex2:
case GXVertexAttribute.Tex3:
case GXVertexAttribute.Tex4:
case GXVertexAttribute.Tex5:
case GXVertexAttribute.Tex6:
case GXVertexAttribute.Tex7:
if (compCount == GXComponentCount.TexCoord_S)
{
compCnt = 1;
}
else if (compCount == GXComponentCount.TexCoord_ST)
{
compCnt = 2;
}
break;
}
}
return(size / (compCnt * compStride));
}
public object LoadAttributeData(EndianBinaryReader reader, int offset, int count, byte frac, GXVertexAttribute attribute, GXDataType dataType, GXComponentCount compCount)
{
reader.BaseStream.Seek(offset, System.IO.SeekOrigin.Begin);
object final = null;
switch (attribute)
{
case GXVertexAttribute.Position:
switch (compCount)
{
case GXComponentCount.Position_XY:
final = LoadVec2Data(reader, frac, count, dataType);
break;
case GXComponentCount.Position_XYZ:
final = LoadVec3Data(reader, frac, count, dataType);
break;
}
break;
case GXVertexAttribute.Normal:
switch (compCount)
{
case GXComponentCount.Normal_XYZ:
final = LoadVec3Data(reader, frac, count, dataType);
break;
case GXComponentCount.Normal_NBT:
break;
case GXComponentCount.Normal_NBT3:
break;
}
break;
case GXVertexAttribute.Color0:
case GXVertexAttribute.Color1:
final = LoadColorData(reader, count, dataType);
break;
case GXVertexAttribute.Tex0:
case GXVertexAttribute.Tex1:
case GXVertexAttribute.Tex2:
case GXVertexAttribute.Tex3:
case GXVertexAttribute.Tex4:
case GXVertexAttribute.Tex5:
case GXVertexAttribute.Tex6:
case GXVertexAttribute.Tex7:
switch (compCount)
{
case GXComponentCount.TexCoord_S:
final = LoadSingleFloat(reader, frac, count, dataType);
break;
case GXComponentCount.TexCoord_ST:
final = LoadVec2Data(reader, frac, count, dataType);
break;
}
break;
}
return(final);
}
