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using System;
namespace NW4RTools.Models {
public abstract class VertexDataBase {
public UInt32 Index;
public VertexSettings.CompCount ComponentCount;
public VertexSettings.CompType ComponentType;
public byte Fraction /* Not used for colours */, EntrySize;
public UInt16 EntryCount;
// Todo, decode data when reading
public byte[] RawData;
public float[][] Data;
public VertexDataBase() {
}
public virtual float[] GetEntry(int index) {
float[] ret = new float[GetRealCount()];
float scale = 1.0f / (1 << Fraction);
InputStream ins = new InputStream(RawData);
ins.Seek(index * EntrySize);
for (int i = 0; i < ret.Length; i++) {
switch (ComponentType) {
case VertexSettings.CompType.UInt8:
ret[i] = (float)ins.ReadByte() * scale;
break;
case VertexSettings.CompType.Int8:
ret[i] = (float)ins.ReadSByte() * scale;
break;
case VertexSettings.CompType.UInt16:
ret[i] = (float)ins.ReadUInt16() * scale;
break;
case VertexSettings.CompType.Int16:
ret[i] = (float)ins.ReadInt16() * scale;
break;
case VertexSettings.CompType.Float32:
ret[i] = ins.ReadFloat();
break;
default:
throw new NotImplementedException(String.Format("unimplemented type {0}", (int)ComponentType));
}
}
return ret;
}
public void Parse() {
if (Data != null)
return;
Data = new float[EntryCount][];
for (int i = 0; i < EntryCount; i++) {
Data[i] = GetEntry(i);
}
}
public abstract int GetRealCount();
}
public class VertexPosData : VertexDataBase {
public Vec3 Minimum, Maximum;
public VertexPosData() {
}
public override int GetRealCount() {
switch (ComponentCount) {
case VertexSettings.CompCount.Position2:
return 2;
case VertexSettings.CompCount.Position3:
return 3;
default:
return -1;
}
}
}
public class VertexNrmData : VertexDataBase {
public VertexNrmData() {
}
public override int GetRealCount() {
switch (ComponentCount) {
case VertexSettings.CompCount.Normal3:
return 3;
default:
return -1;
}
}
}
public class VertexClrData : VertexDataBase {
public VertexClrData() {
}
public override int GetRealCount() {
switch (ComponentCount) {
case VertexSettings.CompCount.Color3:
return 3;
case VertexSettings.CompCount.Color4:
return 4;
default:
return -1;
}
}
public override float[] GetEntry(int index) {
float[] ret = new float[GetRealCount()];
InputStream ins = new InputStream(RawData);
ins.Seek(index * EntrySize);
byte r, g, b, a;
// todo: better solution instead of this cast
switch ((VertexSettings.CompClrType)ComponentType) {
case VertexSettings.CompClrType.RGB565:
ushort v565 = ins.ReadUInt16();
r = (byte)((v565 & 0xF800) >> 8);
g = (byte)((v565 & 0x07E0) >> 3);
b = (byte)((v565 & 0x001F) << 3);
a = 255;
break;
case VertexSettings.CompClrType.RGB8:
r = ins.ReadByte();
g = ins.ReadByte();
b = ins.ReadByte();
a = 255;
break;
case VertexSettings.CompClrType.RGBX8:
r = ins.ReadByte();
g = ins.ReadByte();
b = ins.ReadByte();
a = 255;
ins.Skip(1);
break;
case VertexSettings.CompClrType.RGBA4:
ushort vA4 = ins.ReadUInt16();
r = (byte)((vA4 & 0xF000) >> 8);
g = (byte)((vA4 & 0x0F00) >> 4);
b = (byte)(vA4 & 0x00F0);
a = (byte)((vA4 & 0x000F) << 4);
break;
case VertexSettings.CompClrType.RGBA6:
byte v1 = ins.ReadByte();
byte v2 = ins.ReadByte();
byte v3 = ins.ReadByte();
r = (byte)(v1 & 0xF8);
g = (byte)(((v1 & 7) << 6) | ((v2 & 0xF0) >> 2));
b = (byte)(((v2 & 0xF) << 4) | ((v3 & 0xC) >> 4));
a = (byte)((v3 & 0x3F) << 2);
break;
case VertexSettings.CompClrType.RGBA8:
r = ins.ReadByte();
g = ins.ReadByte();
b = ins.ReadByte();
a = ins.ReadByte();
break;
default:
throw new NotImplementedException(String.Format("unimplemented type {0}", (int)ComponentType));
}
// this is the easiest way I can think of to handle this atm
// just use floats for EVERYTHING
ret[0] = r * (1.0f / 256);
ret[1] = g * (1.0f / 256);
ret[2] = b * (1.0f / 256);
if (ret.Length > 3)
ret[3] = a * (1.0f / 256);
return ret;
}
}
public class VertexTexCoordData : VertexDataBase {
public Vec2 Minimum, Maximum;
public VertexTexCoordData() {
}
public override int GetRealCount() {
switch (ComponentCount) {
case VertexSettings.CompCount.TexCoord1:
return 1;
case VertexSettings.CompCount.TexCoord2:
return 2;
default:
return -1;
}
}
}
}
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