public ImmutableMesh(Mdlx.DmaChain dmaChain)
{
DmaChain = dmaChain;
VpuPackets = dmaChain.DmaVifs
.Select(dmaVif =>
{
var unpacker = new VifUnpacker(dmaVif.VifPacket);
unpacker.Run();
using (var stream = new MemoryStream(unpacker.Memory))
return(VpuPacket.Read(stream));
})
.ToList();
}
private static MeshDescriptor Parse(Mdlx.VifPacketDescriptor vifPacketDescriptor)
{
var vertices = new List <CustomVertex.PositionColoredTextured>();
var indices = new List <int>();
var unpacker = new VifUnpacker(vifPacketDescriptor.VifPacket);
var indexBuffer = new int[4];
var recentIndex = 0;
while (unpacker.Run() != VifUnpacker.State.End)
{
var vpu = new MemoryStream(unpacker.Memory, false)
.Using(stream => VpuPacket.Read(stream));
var baseVertexIndex = vertices.Count;
for (var i = 0; i < vpu.Indices.Length; i++)
{
var vertexIndex = vpu.Indices[i];
var position = new Vector3(
vpu.Vertices[vertexIndex.Index].X,
vpu.Vertices[vertexIndex.Index].Y,
vpu.Vertices[vertexIndex.Index].Z);
int colorR, colorG, colorB, colorA;
if (vpu.Colors.Length != 0)
{
colorR = vpu.Colors[i].R;
colorG = vpu.Colors[i].G;
colorB = vpu.Colors[i].B;
colorA = vpu.Colors[i].A;
}
else
{
colorR = 0x80;
colorG = 0x80;
colorB = 0x80;
colorA = 0x80;
}
var color = Math.Min(byte.MaxValue, colorB * 2) |
(Math.Min(byte.MaxValue, colorG * 2) << 8) |
(Math.Min(byte.MaxValue, colorR * 2) << 16) |
(Math.Min(byte.MaxValue, colorA * 2) << 24);
vertices.Add(new CustomVertex.PositionColoredTextured(
position, color, (short)(ushort)vertexIndex.U / 4096.0f, (short)(ushort)vertexIndex.V / 4096.0f));
indexBuffer[(recentIndex++) & 3] = baseVertexIndex + i;
switch (vertexIndex.Function)
{
case VpuPacket.VertexFunction.DrawTriangleDoubleSided:
indices.Add(indexBuffer[(recentIndex - 1) & 3]);
indices.Add(indexBuffer[(recentIndex - 3) & 3]);
indices.Add(indexBuffer[(recentIndex - 2) & 3]);
indices.Add(indexBuffer[(recentIndex - 1) & 3]);
indices.Add(indexBuffer[(recentIndex - 2) & 3]);
indices.Add(indexBuffer[(recentIndex - 3) & 3]);
break;
case VpuPacket.VertexFunction.Stock:
break;
case VpuPacket.VertexFunction.DrawTriangle:
indices.Add(indexBuffer[(recentIndex - 1) & 3]);
indices.Add(indexBuffer[(recentIndex - 3) & 3]);
indices.Add(indexBuffer[(recentIndex - 2) & 3]);
break;
case VpuPacket.VertexFunction.DrawTriangleInverse:
indices.Add(indexBuffer[(recentIndex - 1) & 3]);
indices.Add(indexBuffer[(recentIndex - 2) & 3]);
indices.Add(indexBuffer[(recentIndex - 3) & 3]);
break;
}
}
}
return(new MeshDescriptor
{
Vertices = vertices.ToArray(),
Indices = indices.ToArray(),
TextureIndex = vifPacketDescriptor.TextureId,
IsOpaque = vifPacketDescriptor.IsTransparentFlag == 0,
});
}
private void Parse(List <Mdlx.VifPacketDescriptor> packetDescriptors)
{
var textureIndex = 0;
var indexBuffer = new int[4];
var recenti = 0;
var model = new Model();
for (var pdIndex = 0; pdIndex < packetDescriptors.Count; pdIndex++)
{
var vifPacketDescriptor = packetDescriptors[pdIndex];
var unpacker = new VifUnpacker(vifPacketDescriptor.VifPacket);
VifUnpacker.State state;
do
{
var indices = new List <int>();
state = unpacker.Run();
var vpu = new MemoryStream(unpacker.Memory, false)
.Using(stream => VpuPacket.Read(stream));
var baseVertexIndex = Vertices.Count;
for (var i = 0; i < vpu.Indices.Length; i++)
{
var vertexIndex = vpu.Indices[i];
Vector3 position;
position.X = -vpu.Vertices[vertexIndex.Index].X;
position.Y = vpu.Vertices[vertexIndex.Index].Y;
position.Z = vpu.Vertices[vertexIndex.Index].Z;
int colorR, colorG, colorB, colorA;
if (vpu.Colors.Length != 0)
{
colorR = vpu.Colors[i].R;
colorG = vpu.Colors[i].G;
colorB = vpu.Colors[i].B;
colorA = vpu.Colors[i].A;
}
else
{
colorR = 0x80;
colorG = 0x80;
colorB = 0x80;
colorA = 0x80;
}
var color = Math.Min(byte.MaxValue, colorB * 2) |
(Math.Min(byte.MaxValue, colorG * 2) << 8) |
(Math.Min(byte.MaxValue, colorR * 2) << 16) |
(Math.Min(byte.MaxValue, colorA * 2) << 24);
Vertices.Add(new CustomVertex.PositionColoredTextured(
position, color, vertexIndex.U / 4096.0f, vertexIndex.V / 4096.0f));
indexBuffer[(recenti++) & 3] = baseVertexIndex + i;
switch (vertexIndex.Function)
{
case VpuPacket.VertexFunction.None:
break;
case VpuPacket.VertexFunction.Stock:
break;
case VpuPacket.VertexFunction.DrawTriangle:
indices.Add(indexBuffer[(recenti - 1) & 3]);
indices.Add(indexBuffer[(recenti - 2) & 3]);
indices.Add(indexBuffer[(recenti - 3) & 3]);
break;
case VpuPacket.VertexFunction.DrawTriangleInverse:
indices.Add(indexBuffer[(recenti - 1) & 3]);
indices.Add(indexBuffer[(recenti - 3) & 3]);
indices.Add(indexBuffer[(recenti - 2) & 3]);
break;
}
}
MeshDescriptors.Add(new MeshDescriptor
{
Indices = indices.ToArray(),
TextureIndex = textureIndex + vifPacketDescriptor.TextureId,
SegmentIndex = pdIndex
});
} while (state == VifUnpacker.State.Microprogram);
}
}
