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Some texfile formatting.

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Ottermandias 2023-08-01 13:11:57 +02:00
parent a95877b9e4
commit 2da6a33a62
1 changed files with 63 additions and 80 deletions
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141
Penumbra/Import/Textures/TexFileParser.cs
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@ -8,36 +8,30 @@ namespace Penumbra.Import.Textures;
public static class TexFileParser
{
public static ScratchImage Parse( Stream data )
public static ScratchImage Parse(Stream data)
{
using var r = new BinaryReader( data );
var header = r.ReadStructure< TexFile.TexHeader >();
using var r = new BinaryReader(data);
var header = r.ReadStructure<TexFile.TexHeader>();
var meta = header.ToTexMeta();
if( meta.Format == DXGIFormat.Unknown )
{
throw new Exception( $"Could not convert format {header.Format} to DXGI Format." );
}
if (meta.Format == DXGIFormat.Unknown)
throw new Exception($"Could not convert format {header.Format} to DXGI Format.");
if( meta.Dimension == TexDimension.Unknown )
{
throw new Exception( $"Could not obtain dimensionality from {header.Type}." );
}
if (meta.Dimension == TexDimension.Unknown)
throw new Exception($"Could not obtain dimensionality from {header.Type}.");
meta.MipLevels = CountMipLevels( data, in meta, in header );
if( meta.MipLevels == 0 )
{
throw new Exception( "Could not load file. Image is corrupted and does not contain enough data for its size." );
}
meta.MipLevels = CountMipLevels(data, in meta, in header);
if (meta.MipLevels == 0)
throw new Exception("Could not load file. Image is corrupted and does not contain enough data for its size.");
var scratch = ScratchImage.Initialize( meta );
var scratch = ScratchImage.Initialize(meta);
CopyData( scratch, r );
CopyData(scratch, r);
return scratch;
}
private static unsafe int CountMipLevels( Stream data, in TexMeta meta, in TexFile.TexHeader header )
private static unsafe int CountMipLevels(Stream data, in TexMeta meta, in TexFile.TexHeader header)
{
var width = meta.Width;
var height = meta.Height;
@ -46,28 +40,22 @@ public static class TexFileParser
var lastOffset = 0L;
var lastSize = 80L;
var minSize = meta.Format.IsCompressed() ? 4 : 1;
for( var i = 0; i < 13; ++i )
{
var offset = header.OffsetToSurface[ i ];
if( offset == 0 )
for (var i = 0; i < 13; ++i)
{
var offset = header.OffsetToSurface[i];
if (offset == 0)
return i;
}
var requiredSize = width * height * bits / 8;
if( offset + requiredSize > data.Length )
{
if (offset + requiredSize > data.Length)
return i;
}
var diff = offset - lastOffset;
if( diff != lastSize )
{
if (diff != lastSize)
return i;
}
width = Math.Max( width / 2, minSize );
height = Math.Max( height / 2, minSize );
width = Math.Max(width / 2, minSize);
height = Math.Max(height / 2, minSize);
lastOffset = offset;
lastSize = requiredSize;
}
@ -75,48 +63,45 @@ public static class TexFileParser
return 13;
}
private static unsafe void CopyData( ScratchImage image, BinaryReader r )
private static unsafe void CopyData(ScratchImage image, BinaryReader r)
{
fixed( byte* ptr = image.Pixels )
fixed (byte* ptr = image.Pixels)
{
var span = new Span< byte >( ptr, image.Pixels.Length );
var readBytes = r.Read( span );
if( readBytes < image.Pixels.Length )
{
throw new Exception( $"Invalid data length {readBytes} < {image.Pixels.Length}." );
}
var span = new Span<byte>(ptr, image.Pixels.Length);
var readBytes = r.Read(span);
if (readBytes < image.Pixels.Length)
throw new Exception($"Invalid data length {readBytes} < {image.Pixels.Length}.");
}
}
public static void Write( this TexFile.TexHeader header, BinaryWriter w )
public static void Write(this TexFile.TexHeader header, BinaryWriter w)
{
w.Write( ( uint )header.Type );
w.Write( ( uint )header.Format );
w.Write( header.Width );
w.Write( header.Height );
w.Write( header.Depth );
w.Write( header.MipLevels );
w.Write((uint)header.Type);
w.Write((uint)header.Format);
w.Write(header.Width);
w.Write(header.Height);
w.Write(header.Depth);
w.Write((byte) header.MipLevels);
w.Write((byte) 0); // TODO Lumina Update
unsafe
{
w.Write( header.LodOffset[ 0 ] );
w.Write( header.LodOffset[ 1 ] );
w.Write( header.LodOffset[ 2 ] );
for( var i = 0; i < 13; ++i )
{
w.Write( header.OffsetToSurface[ i ] );
}
w.Write(header.LodOffset[0]);
w.Write(header.LodOffset[1]);
w.Write(header.LodOffset[2]);
for (var i = 0; i < 13; ++i)
w.Write(header.OffsetToSurface[i]);
}
}
public static TexFile.TexHeader ToTexHeader( this ScratchImage scratch )
public static TexFile.TexHeader ToTexHeader(this ScratchImage scratch)
{
var meta = scratch.Meta;
var ret = new TexFile.TexHeader()
{
Height = ( ushort )meta.Height,
Width = ( ushort )meta.Width,
Depth = ( ushort )Math.Max( meta.Depth, 1 ),
MipLevels = ( ushort )Math.Min( meta.MipLevels, 12 ),
Height = (ushort)meta.Height,
Width = (ushort)meta.Width,
Depth = (ushort)Math.Max(meta.Depth, 1),
MipLevels = (byte)Math.Min(meta.MipLevels, 12),
Format = meta.Format.ToTexFormat(),
Type = meta.Dimension switch
{
@ -128,50 +113,48 @@ public static class TexFileParser
},
};
ret.FillSurfaceOffsets( scratch );
ret.FillSurfaceOffsets(scratch);
return ret;
}
private static unsafe void FillSurfaceOffsets( this ref TexFile.TexHeader header, ScratchImage scratch )
private static unsafe void FillSurfaceOffsets(this ref TexFile.TexHeader header, ScratchImage scratch)
{
var idx = 0;
fixed( byte* ptr = scratch.Pixels )
fixed (byte* ptr = scratch.Pixels)
{
foreach( var image in scratch.Images )
foreach (var image in scratch.Images)
{
var offset = ( byte* )image.Pixels - ptr;
header.OffsetToSurface[ idx++ ] = ( uint )( 80 + offset );
var offset = (byte*)image.Pixels - ptr;
header.OffsetToSurface[idx++] = (uint)(80 + offset);
}
}
for( ; idx < 13; ++idx )
{
header.OffsetToSurface[ idx ] = 0;
}
for (; idx < 13; ++idx)
header.OffsetToSurface[idx] = 0;
header.LodOffset[ 0 ] = 0;
header.LodOffset[ 1 ] = 1;
header.LodOffset[ 2 ] = 2;
header.LodOffset[0] = 0;
header.LodOffset[1] = 1;
header.LodOffset[2] = 2;
}
public static TexMeta ToTexMeta( this TexFile.TexHeader header )
public static TexMeta ToTexMeta(this TexFile.TexHeader header)
=> new()
{
Height = header.Height,
Width = header.Width,
Depth = Math.Max( header.Depth, ( ushort )1 ),
Depth = Math.Max(header.Depth, (ushort)1),
MipLevels = header.MipLevels,
ArraySize = 1,
Format = header.Format.ToDXGI(),
Dimension = header.Type.ToDimension(),
MiscFlags = header.Type.HasFlag( TexFile.Attribute.TextureTypeCube ) ? D3DResourceMiscFlags.TextureCube : 0,
MiscFlags = header.Type.HasFlag(TexFile.Attribute.TextureTypeCube) ? D3DResourceMiscFlags.TextureCube : 0,
MiscFlags2 = 0,
};
private static TexDimension ToDimension( this TexFile.Attribute attribute )
=> ( attribute & TexFile.Attribute.TextureTypeMask ) switch
private static TexDimension ToDimension(this TexFile.Attribute attribute)
=> (attribute & TexFile.Attribute.TextureTypeMask) switch
{
TexFile.Attribute.TextureType1D => TexDimension.Tex1D,
TexFile.Attribute.TextureType2D => TexDimension.Tex2D,
@ -179,7 +162,7 @@ public static class TexFileParser
_ => TexDimension.Unknown,
};
public static TexFile.TextureFormat ToTexFormat( this DXGIFormat format )
public static TexFile.TextureFormat ToTexFormat(this DXGIFormat format)
=> format switch
{
DXGIFormat.R8UNorm => TexFile.TextureFormat.L8,
@ -204,7 +187,7 @@ public static class TexFileParser
_ => TexFile.TextureFormat.Unknown,
};
public static DXGIFormat ToDXGI( this TexFile.TextureFormat format )
public static DXGIFormat ToDXGI(this TexFile.TextureFormat format)
=> format switch
{
TexFile.TextureFormat.L8 => DXGIFormat.R8UNorm,