private static float ReadDataLayout(FileReader reader, GXVertexLayout layout)
{
if (layout.Divisor != 0)
{
switch (layout.CompType)
{
case GXComponentType.S8: return(reader.ReadSByte() / layout.Divisor);
case GXComponentType.U8: return(reader.ReadByte() / layout.Divisor);
case GXComponentType.U16: return(reader.ReadUInt16() / layout.Divisor);
case GXComponentType.S16: return(reader.ReadInt16() / layout.Divisor);
}
}
switch (layout.CompType)
{
case GXComponentType.S8: return(reader.ReadSByte());
case GXComponentType.U8: return(reader.ReadByte());
case GXComponentType.U16: return(reader.ReadUInt16());
case GXComponentType.S16: return(reader.ReadInt16());
case GXComponentType.F32: return(reader.ReadSingle());
}
return(0);
}
private static Vector4 ReadDataColorLayout(FileReader reader, GXVertexLayout layout)
{
switch (layout.CompType)
{
case GXComponentType.RGBA8:
return(new Vector4(
reader.ReadByte() / 255.0f, reader.ReadByte() / 255.0f,
reader.ReadByte() / 255.0f, reader.ReadByte() / 255.0f));
case GXComponentType.RGB8:
return(new Vector4(
reader.ReadByte() / 255.0f, reader.ReadByte() / 255.0f,
reader.ReadByte() / 255.0f, 1.0f));
case GXComponentType.RGBX8:
return(new Vector4(
reader.ReadByte() / 255.0f, reader.ReadByte() / 255.0f,
reader.ReadByte() / 255.0f, 1.0f));
case GXComponentType.RGB565:
{
short value = reader.ReadInt16();
int R = (value & 0xF800) >> 11;
int G = (value & 0x07E0) >> 5;
int B = (value & 0x001F);
return(new Vector4(R / 255f, G / 255f, B / 255f, 1.0f));
}
case GXComponentType.RGBA4:
{
ushort value = reader.ReadUInt16();
float R = (float)((value >> 12) & 0x0F) / 0x0F;
float G = (float)((value >> 8) & 0x0F) / 0x0F;
float B = (float)((value >> 4) & 0x0F) / 0x0F;
float A = (float)((value >> 0) & 0x0F) / 0x0F;
return(new Vector4(R, G, B, A));
}
case GXComponentType.RGBA6:
{
int value = reader.ReadInt32();
int R = (value & 0xFC0000) >> 18;
int G = (value & 0x03F000) >> 12;
int B = (value & 0x000FC0) >> 6;
int A = (value & 0x00003F);
return(new Vector4(R / 255f, G / 255f, B / 255f, A / 255f));
}
default:
return(new Vector4(
reader.ReadByte() / 255f, reader.ReadByte() / 255f,
reader.ReadByte() / 255f, reader.ReadByte() / 255f));
}
return(new Vector4(255, 255, 255, 255));
}
private static ushort ReadLayout(FileReader reader, GXVertexLayout layout)
{
switch (layout.AttType)
{
case GXAttributeType.INDEX16: return(reader.ReadUInt16());
case GXAttributeType.INDEX8: return(reader.ReadByte());
}
return(0);
}
static bool IsColor(GXVertexLayout layout)
{
switch (layout.CompType)
{
case GXComponentType.RGBA4:
case GXComponentType.RGBA8:
case GXComponentType.RGBX8:
case GXComponentType.RGB565:
case GXComponentType.RGB8:
return(layout.Attribute == GXAttributes.Color0 ||
layout.Attribute == GXAttributes.Color1);
default:
return(false);
}
}
private static void ParseData(STVertex vertex, FileReader dataReader, GXVertexLayout layout, int index, ushort[] matrixIndices)
{
int numElements = GetElementCount(layout.Attribute);
int stride = GetDataStride(layout.CompType) * numElements;
if (IsColor(layout))
{
stride = GetColorDataStride(layout.CompType);
}
using (dataReader.TemporarySeek(layout.DataOffset + (index * stride), SeekOrigin.Begin))
{
// Console.WriteLine($"attribute {layout.Attribute} stride {stride} index {index}");
switch (layout.Attribute)
{
case GXAttributes.Position:
{
float X = ReadDataLayout(dataReader, layout);
float Y = ReadDataLayout(dataReader, layout);
float Z = ReadDataLayout(dataReader, layout);
vertex.Position = new OpenTK.Vector3(X, Y, Z);
}
break;
case GXAttributes.Normal:
{
float X = ReadDataLayout(dataReader, layout);
float Y = ReadDataLayout(dataReader, layout);
float Z = ReadDataLayout(dataReader, layout);
vertex.Normal = new OpenTK.Vector3(X, Y, Z).Normalized();
}
break;
case GXAttributes.NormalBinormalTangent:
{
float NormalX = ReadDataLayout(dataReader, layout);
float NormalY = ReadDataLayout(dataReader, layout);
float NormalZ = ReadDataLayout(dataReader, layout);
float BinormalX = ReadDataLayout(dataReader, layout);
float BinormalY = ReadDataLayout(dataReader, layout);
float BinormalZ = ReadDataLayout(dataReader, layout);
float TangentX = ReadDataLayout(dataReader, layout);
float TangentY = ReadDataLayout(dataReader, layout);
float TangentZ = ReadDataLayout(dataReader, layout);
vertex.Normal = new OpenTK.Vector3(NormalX, NormalY, NormalZ).Normalized();
vertex.Bitangent = new OpenTK.Vector4(BinormalX, BinormalY, BinormalZ, 1);
vertex.Tangent = new OpenTK.Vector4(TangentX, TangentY, TangentZ, 1);
}
break;
case GXAttributes.TexCoord0:
case GXAttributes.TexCoord1:
case GXAttributes.TexCoord2:
case GXAttributes.TexCoord3:
case GXAttributes.TexCoord4:
case GXAttributes.TexCoord5:
case GXAttributes.TexCoord6:
case GXAttributes.TexCoord7:
{
int channel = GetChannel(layout.Attribute);
float X = ReadDataLayout(dataReader, layout);
float Y = ReadDataLayout(dataReader, layout);
vertex.TexCoords[channel] = new OpenTK.Vector2(X, Y);
}
break;
case GXAttributes.Color0:
case GXAttributes.Color1:
{
int channel = GetChannel(layout.Attribute);
var color = ReadDataColorLayout(dataReader, layout);
vertex.Colors[0] = new OpenTK.Vector4(color.X, color.Y, color.Z, color.W);
}
break;
case GXAttributes.PosNormMatrix:
{
if (index != -1)
{
int boneID = index / 3;
if (matrixIndices != null)
{
boneID = matrixIndices[index / 3];
}
Console.WriteLine($"BONEID {index} real {boneID}");
vertex.BoneIndices.Add(boneID);
vertex.BoneWeights.Add(1.0f);
}
}
break;
}
}
}
private static void ParseData(STVertex vertex, FileReader dataReader, GXVertexLayout layout, int index)
{
int numElements = GetElementCount(layout.Attribute);
int stride = GetDataStride(layout.CompType) * numElements;
if (IsColor(layout))
{
stride = GetColorDataStride(layout.CompType);
}
using (dataReader.TemporarySeek(layout.DataOffset + (index * stride), SeekOrigin.Begin))
{
// Console.WriteLine($"attribute {layout.Attribute} stride {stride} index {index}");
switch (layout.Attribute)
{
case GXAttributes.Position:
{
float X = ReadDataLayout(dataReader, layout);
float Y = ReadDataLayout(dataReader, layout);
float Z = ReadDataLayout(dataReader, layout);
vertex.Position = new OpenTK.Vector3(X, Y, Z);
}
break;
case GXAttributes.Normal:
{
float X = ReadDataLayout(dataReader, layout);
float Y = ReadDataLayout(dataReader, layout);
float Z = ReadDataLayout(dataReader, layout);
vertex.Normal = new OpenTK.Vector3(X, Y, Z).Normalized();
}
break;
case GXAttributes.TexCoord0:
case GXAttributes.TexCoord1:
case GXAttributes.TexCoord2:
case GXAttributes.TexCoord3:
case GXAttributes.TexCoord4:
case GXAttributes.TexCoord5:
case GXAttributes.TexCoord6:
case GXAttributes.TexCoord7:
{
int channel = (int)(layout.Attribute - GXAttributes.TexCoord0);
float X = ReadDataLayout(dataReader, layout);
float Y = ReadDataLayout(dataReader, layout);
vertex.TexCoords[0] = new OpenTK.Vector2(X, Y);
}
break;
case GXAttributes.Color0:
case GXAttributes.Color1:
{
int channel = (int)(layout.Attribute - GXAttributes.Color0);
var color = ReadDataColorLayout(dataReader, layout);
vertex.Colors[0] = new OpenTK.Vector4(color.X, color.Y, color.Z, color.W);
}
break;
case GXAttributes.PosNormMatrix:
{
if (index != -1)
{
int boneID = index / 3;
vertex.BoneIndices.Add(boneID);
vertex.BoneWeights.Add(1.0f);
}
}
break;
}
}
}
