public int Move(int start, ulong moveNum)
{
int current = start;
foreach (var b in moveNum.Bits())
{
if ((uint)current >= (uint)paths[b].Length)
{
return(current);
}
current = paths[b][current];
}
return(current);
}
public void BitEnumerateUInt64Test(ulong num, int[] expected)
{
num.Bits().Should().Equal(expected);
}
public static RDPState ExecuteCommands(UVTXFile uvtx, out StringBuilder cmdsString)
{
RDPState rdpState = new RDPState();
cmdsString = new StringBuilder();
foreach (byte[] commandBytes in uvtx.displayListCommands)
{
byte[] bytes = commandBytes;
string operationDesc;
switch ((Fast3DEX2Opcode)bytes[0])
{
case Fast3DEX2Opcode.G_TEXTURE:
{
ulong word = bytes.ReadUInt64(0);
byte mipMap = (byte)(word.Bits(43, 3) + 1);
byte tileDescIndex = (byte)word.Bits(40, 3);
bool on = word.Bit(33);
float scaleFactorS = bytes.ReadUInt16(4) / (float)0x10000;
float scaleFactorT = bytes.ReadUInt16(6) / (float)0x10000;
rdpState.tileToUseWhenTexturing = tileDescIndex;
rdpState.maxMipMapLevels = mipMap;
rdpState.texturingEnabled = on;
rdpState.textureScaleS = scaleFactorS;
rdpState.textureScaleT = scaleFactorT;
operationDesc = "G_TEXTURE (Set RSP texture state)";
operationDesc += $": tile {tileDescIndex} scale=<{scaleFactorS}, {scaleFactorT}>; mm={mipMap} on={on}";
break;
}
case Fast3DEX2Opcode.G_SetOtherMode_H:
{
// TODO: actually implement this?
operationDesc = "G_SetOtherMode_H (Set Other Modes Hi)";
int length = bytes[3] + 1;
int shift = 32 - length - bytes[2];
string str = otherModeHShiftToStr[shift];
byte val = (byte)bytes.ReadUInt64(0).Bits(shift, length);
// TODO?: https://wiki.cloudmodding.com/oot/F3DZEX#RDP_Other_Modes.2C_Higher_Half
string valStr = Convert.ToString(val, 2).PadLeft(length, '0');
operationDesc += $": {str} = {valStr}";
break;
}
case Fast3DEX2Opcode.G_SETTILESIZE:
{
ulong word = bytes.ReadUInt64(0);
ushort sLoRaw = (ushort)word.Bits(44, 12);
ushort tLoRaw = (ushort)word.Bits(32, 12);
byte tileDescIndex = (byte)word.Bits(24, 3);
ushort sHiRaw = (ushort)word.Bits(12, 12);
ushort tHiRaw = (ushort)word.Bits(0, 12);
TileDescriptor t = rdpState.tileDescriptors[tileDescIndex];
t.sLo = sLoRaw / 4.0f;
t.tLo = tLoRaw / 4.0f;
t.sHi = sHiRaw / 4.0f;
t.tHi = tHiRaw / 4.0f;
float visWidth = (t.sHi - t.sLo) + 1;
float visHeight = (t.tHi - t.tLo) + 1;
operationDesc = "G_SETTILESIZE (Set texture coords and size)";
operationDesc += $": tile {tileDescIndex} lo=({t.sLo}, {t.tLo}) hi=({t.sHi}, {t.tHi}) [[{visWidth}, {visHeight}]]";
break;
}
case Fast3DEX2Opcode.G_LOADBLOCK:
{
ulong word = bytes.ReadUInt64(0);
ushort sLo = (ushort)word.Bits(44, 12);
ushort tLo = (ushort)word.Bits(32, 12);
byte tileDescIndex = (byte)word.Bits(24, 3);
ushort sHi = (ushort)word.Bits(12, 12);
ushort dxt = (ushort)word.Bits(0, 12);
if (dxt != 0)
{
throw new Exception();
}
if (sLo != 0 || tLo != 0)
{
throw new Exception();
}
if (rdpState.nextDRAMAddrForLoad == null || rdpState.bitSizeOfNextDataForLoad == null)
{
throw new Exception();
}
rdpState.tileDescriptors[tileDescIndex].sLo = sLo;
rdpState.tileDescriptors[tileDescIndex].tLo = tLo;
rdpState.tileDescriptors[tileDescIndex].sHi = sHi;
rdpState.tileDescriptors[tileDescIndex].tHi = dxt; // Not 100% sure this is the correct behavior
int dataStart = (int)rdpState.nextDRAMAddrForLoad;
int dataLengthBytes = (sHi + 1) * Texels.BitSizeToNumBytes((BitSize)rdpState.bitSizeOfNextDataForLoad);
int destPtr = rdpState.tileDescriptors[tileDescIndex].tmemAddressInWords * 8;
// I'm assuming this is the correct behavior because if I don't do this a lot of textures have a notch at the top right
// (Also it would make sense given that interleaving and addresses are all done on 64-bit words
dataLengthBytes = (int)Math.Ceiling(dataLengthBytes / 8f) * 8;
// Note: technically this inaccurate, we shouldn't clamp. But the instructions read beyond the file and IDK why,
// it doesn't seem to serve any purpose so I assume it's a bug (or I don't understand something about how the RSP works)
Array.Copy(uvtx.texelData, dataStart, rdpState.tmem, destPtr, Math.Min(uvtx.texelData.Length - dataStart, dataLengthBytes));
operationDesc = "G_LOADBLOCK (Load data into TMEM (uses params set in SETTIMG))";
operationDesc += $": tile {tileDescIndex} sLo={sLo} tLo={tLo} sHi={sHi} dxt={dxt}";
break;
}
case Fast3DEX2Opcode.G_SETTILE:
{
ulong word = bytes.ReadUInt64(0);
TileDescriptor t = new TileDescriptor
{
format = (ColorFormat)word.Bits(53, 3),
bitSize = (BitSize)word.Bits(51, 2),
wordsPerLine = (ushort)word.Bits(41, 9),
tmemAddressInWords = (ushort)word.Bits(32, 9),
palette = (byte)word.Bits(20, 4),
clampEnableT = word.Bit(19),
mirrorEnableT = word.Bit(18),
maskT = (byte)word.Bits(14, 4),
shiftT = (byte)word.Bits(10, 4),
clampEnableS = word.Bit(9),
mirrorEnableS = word.Bit(8),
maskS = (byte)word.Bits(4, 4),
shiftS = (byte)word.Bits(0, 4),
};
byte tileDescIndex = (byte)word.Bits(24, 3);
rdpState.tileDescriptors[tileDescIndex] = t;
operationDesc = "G_SETTILE (Set texture properties)";
operationDesc += $": tile {tileDescIndex} fmt={t.bitSize}-bit {t.format} wordsPerLine={t.wordsPerLine} addrWords={t.tmemAddressInWords} palette={t.palette}"
+ $" s(clmp={t.clampEnableS} mirr={t.mirrorEnableS} mask={t.maskS} shift={t.shiftS}) t(clmp={t.clampEnableT} mirr={t.mirrorEnableT} mask={t.maskT} shift={t.shiftT})";
break;
}
case Fast3DEX2Opcode.G_SETPRIMCOLOR:
{
float minLODLevel = bytes[2] / 0x100f;
float LODfrac = bytes[3] / 0x100f;
byte r = bytes[4];
byte g = bytes[5];
byte b = bytes[6];
byte a = bytes[7];
rdpState.colorCombinerSettings.primR = r;
rdpState.colorCombinerSettings.primG = g;
rdpState.colorCombinerSettings.primB = b;
rdpState.colorCombinerSettings.primA = a;
rdpState.colorCombinerSettings.minLODLevel = minLODLevel;
rdpState.colorCombinerSettings.LODfrac = LODfrac;
operationDesc = "G_SETPRIMCOLOR (Set color combiner primitive color + LOD)";
operationDesc += $": rgba({r}, {g}, {b}, {a}) minLOD={minLODLevel} LODfrac={LODfrac}";
break;
}
case Fast3DEX2Opcode.G_SETENVCOLOR:
{
byte r = bytes[4];
byte g = bytes[5];
byte b = bytes[6];
byte a = bytes[7];
rdpState.colorCombinerSettings.envR = r;
rdpState.colorCombinerSettings.envG = g;
rdpState.colorCombinerSettings.envB = b;
rdpState.colorCombinerSettings.envA = a;
operationDesc = "G_SETENVCOLOR (Set color combiner environment color)";
operationDesc += $": rgba({r}, {g}, {b}, {a})";
break;
}
case Fast3DEX2Opcode.G_SETCOMBINE:
operationDesc = "G_SETCOMBINE (Set color combiner algorithm)";
break;
case Fast3DEX2Opcode.G_SETTIMG:
{
ulong word = bytes.ReadUInt64(0);
ColorFormat format = (ColorFormat)word.Bits(53, 3);
BitSize bitSize = (BitSize)word.Bits(51, 2);
uint dramAddress = (uint)word.Bits(0, 25);
rdpState.nextDRAMAddrForLoad = dramAddress;
rdpState.bitSizeOfNextDataForLoad = bitSize;
operationDesc = "G_SETTIMG (Set pointer to data to load + size of data)";
operationDesc += $": DRAM 0x{dramAddress:X8}; fmt={bitSize}-bit {format}";
break;
}
case Fast3DEX2Opcode.G_RDPLOADSYNC:
operationDesc = "G_RDPLOADSYNC (Wait for texture load)";
break;
case Fast3DEX2Opcode.G_RDPTILESYNC:
operationDesc = "G_RDPTILESYNC (Wait for rendering + update tile descriptor attributes)";
break;
case Fast3DEX2Opcode.G_ENDDL:
operationDesc = "G_ENDDL (End display list)";
break;
default:
throw new InvalidOperationException();
}
string bytesStr = String.Join(" ", bytes.Select(b => b.ToString("X2")));
cmdsString.AppendLine(bytesStr + " | " + operationDesc);
}
return(rdpState);
}