public static uint FromVector3(Vector3 vec, int intPart = 0, int fracPart = 9)
{
var buffer = new byte[] { 0x00, 0x00 };
var coords = new ushort[3];
var m = new MemoryStream(buffer);
var ew = new EndianBinaryWriterEx(m, Endianness.LittleEndian);
var er = new EndianBinaryReaderEx(m, Endianness.LittleEndian);
ew.WriteFixedPoint(vec.X, true, intPart, fracPart);
m.Position = 0;
coords[0] = er.ReadUInt16();
m.Position = 0;
ew.WriteFixedPoint(vec.Y, true, intPart, fracPart);
m.Position = 0;
coords[1] = er.ReadUInt16();
m.Position = 0;
ew.WriteFixedPoint(vec.Z, true, intPart, fracPart);
m.Position = 0;
coords[2] = er.ReadUInt16();
m.Close();
var res = (uint)(coords[0] | (coords[1] << 10) | (coords[2] << 20));
return(res);
}
public static byte[] Encode(IEnumerable <DisplayListCommand> commands)
{
var m = new MemoryStream();
var ew = new EndianBinaryWriterEx(m, Endianness.LittleEndian);
int offset = 0;
int packed = 0;
var cmdList = commands.ToList();
var nops = (cmdList.Count % 4) == 0 ? 0 : 4 - (cmdList.Count % 4);
//Add NOPs at the end
for (int i = 0; i < nops; i++)
{
cmdList.Add(new DisplayListCommand(G3dCommand.Nop));
}
var commandQueue = new Queue <DisplayListCommand>();
bool param0Flag = false;
void Flush()
{
packed = 0;
var count = commandQueue.Count;
for (int i = 0; i < count; i++)
{
var cmd = commandQueue.Dequeue();
//m.Position = offset;
switch (cmd.G3dCommand)
{
default:
case G3dCommand.Identity:
case G3dCommand.PushMatrix:
case G3dCommand.End:
case G3dCommand.Nop:
break;
case G3dCommand.TexCoord:
ew.WriteFixedPoint(cmd.RealArgs[0], true, 11, 4);
ew.WriteFixedPoint(cmd.RealArgs[1], true, 11, 4);
offset += 4;
break;
case G3dCommand.VertexXY:
case G3dCommand.VertexXZ:
case G3dCommand.VertexYZ:
ew.WriteFx16s(cmd.RealArgs);
offset += 4;
break;
case G3dCommand.Begin:
case G3dCommand.RestoreMatrix:
ew.Write(cmd.IntArgs[0]);
offset += 4;
break;
case G3dCommand.VertexDiff:
var vec2 = VecFx10.FromVector3((cmd.RealArgs[0] * 8, cmd.RealArgs[1] * 8,
cmd.RealArgs[2] * 8));
ew.Write(vec2);
offset += 4;
break;
case G3dCommand.VertexShort:
var vec3 = VecFx10.FromVector3((cmd.RealArgs[0], cmd.RealArgs[1], cmd.RealArgs[2]), 3,
6);
ew.Write(vec3);
offset += 4;
break;
case G3dCommand.Normal:
var vec = VecFx10.FromVector3((cmd.RealArgs[0], cmd.RealArgs[1], cmd.RealArgs[2]));
ew.Write(vec);
offset += 4;
break;
case G3dCommand.Color:
var color = GFXUtil.ConvertColorFormat(
(uint)Color.FromArgb(0, (int)cmd.IntArgs[0], (int)cmd.IntArgs[1],
(int)cmd.IntArgs[2]).ToArgb(),
ColorFormat.ARGB8888, ColorFormat.ABGR1555);
ew.Write(color);
offset += 4;
break;
case G3dCommand.Vertex:
ew.WriteFx16s(cmd.RealArgs);
ew.Write((ushort)0);
offset += 8;
break;
}
}
if (param0Flag)
{
ew.Write(0);
offset += 4;
param0Flag = false;
}
}
foreach (var command in cmdList)
{
if (command.G3dCommand != G3dCommand.Nop)
{
param0Flag = packed > 0 && (command.G3dCommand == G3dCommand.Identity ||
command.G3dCommand == G3dCommand.PushMatrix ||
command.G3dCommand == G3dCommand.End);
}
//m.Position = offset;
commandQueue.Enqueue(command);
ew.Write((byte)command.G3dCommand);
packed++;
offset++;
if (packed == 4)
{
Flush();
}
}
var dl = m.ToArray();
m.Close();
return(dl);
}
