// Dump the display list of the currently selected gfx node (if applicable)
// This can contain vertices and triangles, but also draw settings like lighting and fog
private void DumpButton_Click(object sender, EventArgs e)
{
if (SelectedNode != null && (SelectedNode is GfxDisplayList || SelectedNode is GfxAnimationNode ||
SelectedNode is GfxTranslatedModel || SelectedNode is GfxRotationNode))
{
uint address = Config.Stream.GetUInt32(SelectedNode.Address + 0x14);
richTextBoxGfx.Text = Fast3DDecoder.DecodeList(SegmentationUtilities.DecodeSegmentedAddress(address));
}
else
{
MessageBox.Show("Select a display list node first");
}
}
// Gives a string decoding the display list starting at a given address
public static string DecodeList(uint address, int recursionDepth = 0)
{
if (recursionDepth > MaxRecursionDepth)
{
return("Recursion too deep");
}
var res = new StringBuilder();
res.AppendLine(Indent(recursionDepth) + $"Decoding list at 0x{address:X8}");
for (int i = 0; i < MaxDisplayListLength; i++)
{
var firstWord = Config.Stream.GetUInt32(address);
var secondWord = Config.Stream.GetUInt32(address + 4);
var opcode = (F3DOpcode)((firstWord >> 24) & 0xFF);
var name = Enum.GetName(typeof(F3DOpcode), opcode);
res.Append(Indent(recursionDepth) + $"{firstWord:X8} {secondWord:X8} " + name + " ");
// todo: interpret the other commands
switch (opcode)
{
case F3DOpcode.G_LOADBLOCK:
res.AppendLine();
break;
case F3DOpcode.G_MOVEMEM:
case F3DOpcode.G_SETTIMG:
res.AppendLine($"0x{SegmentationUtilities.DecodeSegmentedAddress(secondWord):X8}");
break;
case F3DOpcode.G_MTX:
res.Append($"0x{SegmentationUtilities.DecodeSegmentedAddress(secondWord):X8} ");
var p = (firstWord >> 16) & 0xFF;
res.Append(((p & 0x01) != 0) ? "projection: " : "model view: ");
res.Append(((p & 0x02) != 0) ? "load" : "multiply");
res.AppendLine(((p & 0x04) != 0) ? "and push" : "and don't push");
break;
case F3DOpcode.G_SETTILESIZE:
var h = ((secondWord & 0xFFF) + 4) / 4;
var w = (((secondWord >> 12) & 0xFFF) + 4) / 4;
res.AppendLine($"{w} * {h}");
break;
case F3DOpcode.G_SETTILE:
var colorFormat = (firstWord >> 21) & 0x7;
res.Append(colorFormat < ColorModes.Length ? ColorModes[colorFormat] : "Invalid color mode");
int pixelBits = ((int)firstWord >> 19) & 0x3;
res.AppendLine(" " + (4 << pixelBits) + "-bit");
break;
case F3DOpcode.G_CLEARGEOMETRYMODE:
case F3DOpcode.G_SETGEOMETRYMODE:
res.AppendLine(GetGeometryFlags(secondWord));
break;
case F3DOpcode.G_VTX:
var vertexAmount = ((firstWord >> 20) & 0xF) + 1;
var startIndex = ((firstWord >> 16) & 0xF);
var vertexAddress = SegmentationUtilities.DecodeSegmentedAddress(secondWord);
res.AppendLine($"{vertexAmount} vertices at 0x{vertexAddress:X8}, start index {startIndex}");
res.AppendLine(Indent(recursionDepth) + "(pos) flags (tex) (normal/color)");
for (byte j = 0; j < vertexAmount; j++)
{
uint add = (uint)(vertexAddress + (j * 0x10));
var x = Config.Stream.GetInt16(add + 0x00);
var y = Config.Stream.GetInt16(add + 0x02);
var z = Config.Stream.GetInt16(add + 0x04);
var flags = Config.Stream.GetUInt16(add + 0x06);
var texX = Config.Stream.GetInt16(add + 0x08);
var texY = Config.Stream.GetInt16(add + 0x0A);
var r = Config.Stream.GetByte(add + 0x0C);
var g = Config.Stream.GetByte(add + 0x0D);
var b = Config.Stream.GetByte(add + 0x0E);
var a = Config.Stream.GetByte(add + 0x0F);
res.AppendLine(Indent(recursionDepth) + $"({x}, {y}, {z}) 0x{flags:X4} ({texX}, {texY}) ({r}, {g}, {b}, {a})");
}
break;
case F3DOpcode.G_TRI1:
var v1 = ((secondWord >> 16) & 0xFF) / 0x0A;
var v2 = ((secondWord >> 8) & 0xFF) / 0x0A;
var v3 = ((secondWord >> 0) & 0xFF) / 0x0A;
res.AppendLine($"indices ({v1}, {v2}, {v3})");
break;
case F3DOpcode.G_DL:
res.AppendLine();
res.AppendLine(DecodeList(SegmentationUtilities.DecodeSegmentedAddress(secondWord), recursionDepth + 1));
break;
default:
res.AppendLine();
break;
}
if (opcode == F3DOpcode.G_ENDDL)
{
break;
}
address += 8; //Fast 3D instructions are always 8 bytes long
}
return(res.ToString());
}
