Add mesh reading and conversion support
This commit is contained in:
Yukai Li
parent
65dc96c4d6
commit
aa1277a4e1
25 changed files with 2212 additions and 9 deletions
395
LibDgf.Graphics/Mesh/ObjConverter.cs
Normal file
395
LibDgf.Graphics/Mesh/ObjConverter.cs
Normal file
|
|
@ -0,0 +1,395 @@
|
|||
using LibDgf.Dat;
|
||||
using LibDgf.Mesh;
|
||||
using LibDgf.Ps2.Gs;
|
||||
using LibDgf.Ps2.Gs.Registers;
|
||||
using LibDgf.Txm;
|
||||
using SixLabors.ImageSharp;
|
||||
using SixLabors.ImageSharp.PixelFormats;
|
||||
using System;
|
||||
using System.Collections.Generic;
|
||||
using System.IO;
|
||||
using System.Linq;
|
||||
using System.Text;
|
||||
|
||||
namespace LibDgf.Graphics.Mesh
|
||||
{
|
||||
public class ObjConverter : IDisposable
|
||||
{
|
||||
Dictionary<ulong, TxmHeader> textureCache = new Dictionary<ulong, TxmHeader>();
|
||||
DatReader textureDat;
|
||||
private bool disposedValue;
|
||||
int numWrittenTextures = 0;
|
||||
|
||||
public ObjConverter(DatReader textureDat)
|
||||
{
|
||||
this.textureDat = textureDat ?? throw new ArgumentNullException(nameof(textureDat));
|
||||
}
|
||||
|
||||
public void ConvertObj(Pdb pdb, StreamWriter sw)
|
||||
{
|
||||
int startVert = 1;
|
||||
if (pdb.Specular != null)
|
||||
{
|
||||
sw.WriteLine("o specular");
|
||||
startVert = WriteObj(pdb.Specular, sw, startVert);
|
||||
}
|
||||
if (pdb.Diffuse != null)
|
||||
{
|
||||
sw.WriteLine("o diffuse");
|
||||
startVert = WriteObj(pdb.Diffuse, sw, startVert);
|
||||
}
|
||||
if (pdb.Metallic != null)
|
||||
{
|
||||
sw.WriteLine("o metallic");
|
||||
startVert = WriteObj(pdb.Metallic, sw, startVert);
|
||||
}
|
||||
}
|
||||
|
||||
TxmHeader CreateTexture(Tdb tdb, int index, out ulong textureId)
|
||||
{
|
||||
var tdbTexture = tdb.Textures[index];
|
||||
textureId = ((ulong)tdbTexture.DatIndex << 32) | ((ulong)tdbTexture.ImageBufferBase << 16) | tdbTexture.ClutBufferBase;
|
||||
if (!textureCache.ContainsKey(textureId))
|
||||
{
|
||||
TxmHeader txm = new TxmHeader();
|
||||
txm.ImageBufferBase = tdbTexture.ImageBufferBase;
|
||||
txm.ClutBufferBase = tdbTexture.ClutBufferBase;
|
||||
textureCache.Add(textureId, txm);
|
||||
return txm;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
void FillTxm(Db2Element elem, TxmHeader txm)
|
||||
{
|
||||
Tex0 tex0 = new Tex0 { Packed = BitConverter.ToUInt64(elem.GsRegs, 0x10) };
|
||||
txm.ImageSourcePixelFormat = (TxmPixelFormat)tex0.Psm;
|
||||
txm.ImageVideoPixelFormat = txm.ImageSourcePixelFormat;
|
||||
txm.ImageWidth = (short)(1 << tex0.Tw);
|
||||
txm.ImageHeight = (short)(1 << tex0.Th);
|
||||
txm.Misc = tex0.Tbw;
|
||||
if (txm.ImageSourcePixelFormat == TxmPixelFormat.PSMT4 || txm.ImageSourcePixelFormat == TxmPixelFormat.PSMT8)
|
||||
{
|
||||
txm.ClutPixelFormat = (TxmPixelFormat)tex0.Cpsm;
|
||||
if (txm.ImageSourcePixelFormat == TxmPixelFormat.PSMT4)
|
||||
{
|
||||
txm.ClutWidth = 8;
|
||||
txm.ClutHeight = 2;
|
||||
}
|
||||
else
|
||||
{
|
||||
txm.ClutWidth = 16;
|
||||
txm.ClutHeight = 16;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
txm.ClutPixelFormat = TxmPixelFormat.None;
|
||||
}
|
||||
}
|
||||
|
||||
int WriteObj(Tdb tdb, StreamWriter sw, int startVert)
|
||||
{
|
||||
for (int i = 0; i < tdb.Mesh.Elements.Count; ++i)
|
||||
{
|
||||
var elem = tdb.Mesh.Elements[i];
|
||||
sw.WriteLine($"g elem_{i}");
|
||||
|
||||
TxmHeader txm = CreateTexture(tdb, elem.TextureIndex, out var textureId);
|
||||
sw.WriteLine($"usemtl tex_{textureId:x12}");
|
||||
if (txm != null) FillTxm(elem, txm);
|
||||
|
||||
// Write vertices
|
||||
foreach (var vert in elem.Vertices)
|
||||
{
|
||||
sw.WriteLine($"v {(double)vert.X} {(double)vert.Y} {(double)vert.Z}");
|
||||
}
|
||||
|
||||
foreach (var norm in elem.VertexNormals)
|
||||
{
|
||||
sw.WriteLine($"vn {norm.Item1} {norm.Item2} {norm.Item3}");
|
||||
}
|
||||
|
||||
foreach (var uv in elem.STCoordinates)
|
||||
{
|
||||
sw.WriteLine($"vt {uv.Item1} {1 - uv.Item2}");
|
||||
}
|
||||
|
||||
// Write faces
|
||||
int[] initVerts = new int[2];
|
||||
bool clockwise = true;
|
||||
if (elem.GifTagIndex == 3) // Triangle fans
|
||||
{
|
||||
int initVertPos = 0;
|
||||
for (int j = 0; j < elem.Vertices.Count; ++j)
|
||||
{
|
||||
if ((elem.Vertices[j].W.Packed & 0x00008000) != 0)
|
||||
{
|
||||
initVerts[initVertPos++] = startVert + j;
|
||||
}
|
||||
else
|
||||
{
|
||||
int currVert = startVert + j;
|
||||
if (clockwise)
|
||||
{
|
||||
sw.WriteLine($"f {initVerts[0]}/{initVerts[0]}/{initVerts[0]} {initVerts[1]}/{initVerts[1]}/{initVerts[1]} {currVert}/{currVert}/{currVert}");
|
||||
}
|
||||
else
|
||||
{
|
||||
sw.WriteLine($"f {currVert}/{currVert}/{currVert} {initVerts[1]}/{initVerts[1]}/{initVerts[1]} {initVerts[0]}/{initVerts[0]}/{initVerts[0]}");
|
||||
}
|
||||
initVerts[1] = currVert;
|
||||
initVertPos = 0;
|
||||
}
|
||||
clockwise = !clockwise;
|
||||
}
|
||||
}
|
||||
else if (elem.GifTagIndex == 4) // Triangle strips
|
||||
{
|
||||
for (int j = 0; j < elem.Vertices.Count; ++j)
|
||||
{
|
||||
int currVert = startVert + j;
|
||||
if ((elem.Vertices[j].W.Packed & 0x00008000) == 0)
|
||||
{
|
||||
if (clockwise)
|
||||
{
|
||||
sw.WriteLine($"f {initVerts[0]}/{initVerts[0]}/{initVerts[0]} {initVerts[1]}/{initVerts[1]}/{initVerts[1]} {currVert}/{currVert}/{currVert}");
|
||||
}
|
||||
else
|
||||
{
|
||||
sw.WriteLine($"f {currVert}/{currVert}/{currVert} {initVerts[1]}/{initVerts[1]}/{initVerts[1]} {initVerts[0]}/{initVerts[0]}/{initVerts[0]}");
|
||||
}
|
||||
}
|
||||
initVerts[0] = initVerts[1];
|
||||
initVerts[1] = currVert;
|
||||
clockwise = !clockwise;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new NotSupportedException("Unknown face construction type");
|
||||
}
|
||||
startVert += elem.Vertices.Count;
|
||||
sw.WriteLine();
|
||||
}
|
||||
|
||||
return startVert;
|
||||
}
|
||||
|
||||
void CopyTexelsClut(BinaryReader br, BinaryWriter bw, TxmHeader pakTxm, TxmHeader textureTxm)
|
||||
{
|
||||
if (pakTxm.ClutPixelFormat != TxmPixelFormat.None)
|
||||
throw new ArgumentException("Cannot operate on source TXM with CLUT.", nameof(pakTxm));
|
||||
if (textureTxm.ClutPixelFormat == TxmPixelFormat.None) return;
|
||||
|
||||
var destColumnParams = GsMemoryUtils.GetColumnParams(textureTxm.ClutPixelFormat);
|
||||
int copyLength = textureTxm.GetClutByteSize();
|
||||
int baseBlockNumber = textureTxm.ClutBufferBase - pakTxm.ImageBufferBase;
|
||||
int srcBase = 0x10 + pakTxm.GetClutByteSize();
|
||||
var destBase = 0x10;
|
||||
int bytesPerSrcLine = pakTxm.GetImageByteSize() / pakTxm.ImageHeight;
|
||||
int bytesPerDestLine = textureTxm.GetClutByteSize() / textureTxm.ClutHeight;
|
||||
|
||||
bw.Write(new byte[copyLength]);
|
||||
int numXBlocks = textureTxm.ClutWidth / destColumnParams.Width;
|
||||
if (numXBlocks == 0) numXBlocks = 1;
|
||||
int numYBlocks = textureTxm.ClutHeight / (destColumnParams.Height * GsMemoryUtils.COLUMNS_PER_BLOCK);
|
||||
if (numYBlocks == 0) numYBlocks = 1;
|
||||
int destBlock = 0;
|
||||
for (int blockY = 0; blockY < numYBlocks; ++blockY)
|
||||
{
|
||||
for (int blockX = 0; blockX < numXBlocks; ++blockX)
|
||||
{
|
||||
int blockNumber = baseBlockNumber + GsMemoryUtils.CalcBlockNumber(textureTxm.ClutPixelFormat, blockX, blockY, 1);
|
||||
br.BaseStream.Seek(srcBase + GsMemoryUtils.CalcBlockMemoryOffset(pakTxm.ImageSourcePixelFormat, blockNumber),
|
||||
SeekOrigin.Begin);
|
||||
bw.BaseStream.Seek(destBase + GsMemoryUtils.CalcTxmImageOffset(destColumnParams, destBlock, textureTxm.ClutWidth),
|
||||
SeekOrigin.Begin);
|
||||
for (int i = 0; i < GsMemoryUtils.COLUMNS_PER_BLOCK; ++i)
|
||||
{
|
||||
byte[] col = GsMemoryUtils.ReadColumn(br, pakTxm.ImageSourcePixelFormat, bytesPerSrcLine);
|
||||
GsMemoryUtils.WriteColumn(bw, textureTxm.ClutPixelFormat, bytesPerDestLine, col);
|
||||
}
|
||||
++destBlock;
|
||||
}
|
||||
}
|
||||
|
||||
// Dump palette
|
||||
//bw.BaseStream.Seek(destBase, SeekOrigin.Begin);
|
||||
//BinaryReader palBr = new BinaryReader(bw.BaseStream);
|
||||
//using (var palette = TxmConversion.ConvertTxmRgba32(palBr, textureTxm.ClutWidth, textureTxm.ClutHeight))
|
||||
//{
|
||||
// palette.SaveAsPng($"palette_{numWrittenTextures}.png");
|
||||
//}
|
||||
}
|
||||
|
||||
void CopyTexels(BinaryReader br, BinaryWriter bw, TxmHeader pakTxm, TxmHeader textureTxm)
|
||||
{
|
||||
if (pakTxm.ClutPixelFormat != TxmPixelFormat.None)
|
||||
throw new ArgumentException("Cannot operate on source TXM with CLUT.", nameof(pakTxm));
|
||||
|
||||
var destColumnParams = GsMemoryUtils.GetColumnParams(textureTxm.ImageSourcePixelFormat);
|
||||
int copyLength = textureTxm.GetImageByteSize();
|
||||
int srcBase = 0x10 + pakTxm.GetClutByteSize();
|
||||
int baseBlockNumber = textureTxm.ImageBufferBase - pakTxm.ImageBufferBase;
|
||||
int destBase = 0x10 + textureTxm.GetClutByteSize();
|
||||
int bytesPerSrcLine = pakTxm.GetImageByteSize() / pakTxm.ImageHeight;
|
||||
int bytesPerDestLine = copyLength / textureTxm.ImageHeight;
|
||||
|
||||
bw.Write(new byte[copyLength]);
|
||||
int numXBlocks = textureTxm.ImageWidth / destColumnParams.Width;
|
||||
if (numXBlocks == 0) numXBlocks = 1;
|
||||
int numYBlocks = textureTxm.ImageHeight / (destColumnParams.Height * GsMemoryUtils.COLUMNS_PER_BLOCK);
|
||||
if (numYBlocks == 0) numYBlocks = 1;
|
||||
int destBlock = 0;
|
||||
for (int blockY = 0; blockY < numYBlocks; ++blockY)
|
||||
{
|
||||
for (int blockX = 0; blockX < numXBlocks; ++blockX)
|
||||
{
|
||||
int blockNumber = baseBlockNumber + GsMemoryUtils.CalcBlockNumber(textureTxm.ImageSourcePixelFormat, blockX, blockY, textureTxm.Misc);
|
||||
br.BaseStream.Seek(srcBase + GsMemoryUtils.CalcBlockMemoryOffset(pakTxm.ImageSourcePixelFormat, blockNumber),
|
||||
SeekOrigin.Begin);
|
||||
bw.BaseStream.Seek(destBase + GsMemoryUtils.CalcTxmImageOffset(destColumnParams, destBlock, textureTxm.ImageWidth),
|
||||
SeekOrigin.Begin);
|
||||
for (int i = 0; i < GsMemoryUtils.COLUMNS_PER_BLOCK; ++i)
|
||||
{
|
||||
byte[] col = GsMemoryUtils.ReadColumn(br, pakTxm.ImageSourcePixelFormat, bytesPerSrcLine);
|
||||
if (pakTxm.ImageSourcePixelFormat != textureTxm.ImageSourcePixelFormat)
|
||||
{
|
||||
col = PsmtMixer.MixColumn(col, pakTxm.ImageSourcePixelFormat, textureTxm.ImageSourcePixelFormat, i % 2 != 0);
|
||||
}
|
||||
GsMemoryUtils.WriteColumn(bw, textureTxm.ImageSourcePixelFormat, bytesPerDestLine, col);
|
||||
}
|
||||
|
||||
++destBlock;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public void ExportTextures(StreamWriter mtlWriter, string outputPath)
|
||||
{
|
||||
if (disposedValue) throw new ObjectDisposedException(GetType().FullName);
|
||||
|
||||
int i = 0;
|
||||
numWrittenTextures = 0;
|
||||
foreach (var pair in textureCache.OrderBy(p => p.Key))
|
||||
{
|
||||
string pngPath = $"{outputPath}{i}.png";
|
||||
string alphaPath = $"{outputPath}{i}_alpha.png";
|
||||
TxmHeader textureTxm = pair.Value;
|
||||
|
||||
int txmIndex = (int)(pair.Key >> 32);
|
||||
using (var txmMs = new MemoryStream(textureDat.GetData(txmIndex)))
|
||||
{
|
||||
BinaryReader txmBr = new BinaryReader(txmMs);
|
||||
TxmHeader pakTxm = new TxmHeader();
|
||||
pakTxm.Read(txmBr);
|
||||
|
||||
Image<Rgba32> img = null;
|
||||
try
|
||||
{
|
||||
// Check if TXM is already suitable
|
||||
if (/*pakTxm.ImageSourcePixelFormat == textureTxm.ImageSourcePixelFormat &&*/
|
||||
pakTxm.ImageBufferBase == textureTxm.ImageBufferBase &&
|
||||
pakTxm.ClutPixelFormat == textureTxm.ClutPixelFormat &&
|
||||
pakTxm.ClutBufferBase == textureTxm.ClutBufferBase)
|
||||
{
|
||||
// Use TXM as-is
|
||||
txmMs.Seek(0, SeekOrigin.Begin);
|
||||
img = TxmConversion.ConvertTxmToImage(txmMs);
|
||||
|
||||
// Dump palette
|
||||
//if (pakTxm.ClutPixelFormat != TxmPixelFormat.None)
|
||||
//{
|
||||
// txmMs.Seek(0x10, SeekOrigin.Begin);
|
||||
// using (var palette = TxmConversion.ConvertTxmRgba32(txmBr, pakTxm.ClutWidth, pakTxm.ClutHeight))
|
||||
// {
|
||||
// palette.SaveAsPng($"palette_{numWrittenTextures}.png");
|
||||
// }
|
||||
//}
|
||||
}
|
||||
else
|
||||
{
|
||||
// Generate new TXM
|
||||
using (MemoryStream ms = new MemoryStream())
|
||||
{
|
||||
BinaryWriter bw = new BinaryWriter(ms);
|
||||
textureTxm.Write(bw);
|
||||
CopyTexelsClut(txmBr, bw, pakTxm, textureTxm);
|
||||
CopyTexels(txmBr, bw, pakTxm, textureTxm);
|
||||
bw.Flush();
|
||||
ms.Seek(0, SeekOrigin.Begin);
|
||||
img = TxmConversion.ConvertTxmToImage(ms);
|
||||
}
|
||||
}
|
||||
|
||||
// Save out color texture
|
||||
using (var img24bpp = img.CloneAs<Rgb24>())
|
||||
{
|
||||
img24bpp.SaveAsPng(pngPath);
|
||||
}
|
||||
|
||||
// Extract alpha channel as a separate image
|
||||
using (var alphaImg = new Image<L8>(img.Width, img.Height))
|
||||
{
|
||||
for (int y = 0; y < alphaImg.Height; ++y)
|
||||
{
|
||||
var srcSpan = img.GetPixelRowSpan(y);
|
||||
var destSpan = alphaImg.GetPixelRowSpan(y);
|
||||
for (int x = 0; x < alphaImg.Width; ++x)
|
||||
{
|
||||
var srcAlpha = srcSpan[x].A;
|
||||
destSpan[x] = new L8(srcAlpha);
|
||||
}
|
||||
}
|
||||
alphaImg.SaveAsPng(alphaPath);
|
||||
}
|
||||
}
|
||||
finally
|
||||
{
|
||||
if (img != null) img.Dispose();
|
||||
}
|
||||
}
|
||||
|
||||
mtlWriter.WriteLine($"newmtl tex_{pair.Key:x12}");
|
||||
mtlWriter.WriteLine("Kd 0.80000000 0.80000000 0.80000000");
|
||||
mtlWriter.WriteLine("Ka 0 0 0");
|
||||
mtlWriter.WriteLine("Ke 0 0 0");
|
||||
mtlWriter.WriteLine("Ks 0 0 0");
|
||||
mtlWriter.WriteLine("d 1");
|
||||
mtlWriter.WriteLine("illum 2");
|
||||
mtlWriter.WriteLine($"map_Kd {Path.GetFileName(pngPath)}");
|
||||
mtlWriter.WriteLine($"map_d {Path.GetFileName(alphaPath)}");
|
||||
mtlWriter.WriteLine();
|
||||
|
||||
++i;
|
||||
++numWrittenTextures;
|
||||
}
|
||||
}
|
||||
|
||||
public void Reset()
|
||||
{
|
||||
textureCache.Clear();
|
||||
}
|
||||
|
||||
protected virtual void Dispose(bool disposing)
|
||||
{
|
||||
if (!disposedValue)
|
||||
{
|
||||
if (disposing)
|
||||
{
|
||||
textureDat.Dispose();
|
||||
}
|
||||
|
||||
disposedValue = true;
|
||||
}
|
||||
}
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
|
||||
Dispose(disposing: true);
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue