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This commit is contained in:
bird_egop
2026-05-09 20:36:43 +03:00
parent d73a6dde70
commit eb458ad9a8
43 changed files with 1562 additions and 1233 deletions
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TexmLib/TexmParser.cs
+24 -37
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@@ -20,18 +20,18 @@ public class TexmParser
var widthBytes = headerBytes[4..8];
var heightBytes = headerBytes[8..12];
var mipmapCountBytes = headerBytes[12..16];
var strideBytes = headerBytes[16..20];
var magic1Bytes = headerBytes[20..24];
var formatOptionFlagsBytes = headerBytes[24..28];
var flags4Bytes = headerBytes[16..20];
var flags5Bytes = headerBytes[20..24];
var unk6Bytes = headerBytes[24..28];
var formatBytes = headerBytes[28..32];
var texmAscii = Encoding.ASCII.GetString(texmHeader).Trim('\0');
var width = BinaryPrimitives.ReadInt32LittleEndian(widthBytes);
var height = BinaryPrimitives.ReadInt32LittleEndian(heightBytes);
var mipmapCount = BinaryPrimitives.ReadInt32LittleEndian(mipmapCountBytes);
var stride = BinaryPrimitives.ReadInt32LittleEndian(strideBytes);
var magic1 = BinaryPrimitives.ReadInt32LittleEndian(magic1Bytes);
var formatOptionFlags = BinaryPrimitives.ReadInt32LittleEndian(formatOptionFlagsBytes);
var flags4 = BinaryPrimitives.ReadInt32LittleEndian(flags4Bytes);
var flags5 = BinaryPrimitives.ReadInt32LittleEndian(flags5Bytes);
var unk6 = BinaryPrimitives.ReadInt32LittleEndian(unk6Bytes);
var format = BinaryPrimitives.ReadInt32LittleEndian(formatBytes);
if (texmAscii != "Texm")
@@ -39,64 +39,56 @@ public class TexmParser
return new TexmParseResult(null, "Файл не начинается с Texm");
}
var textureFile = new TexmFile()
{
FileName = file
};
var header = new TexmHeader(
texmAscii,
width,
height,
mipmapCount,
stride,
magic1,
formatOptionFlags,
flags4,
flags5,
unk6,
format
);
textureFile.Header = header;
List<byte[]> mipmapBytesList;
var isIndexed = false;
byte[] lookupColors = [];
if (format == 0)
{
// если формат 0, то текстура использует lookup таблицу в первых 1024 байтах (256 разных цветов в формате ARGB 888)
var lookupColors = new byte[1024];
lookupColors = new byte[1024];
stream.ReadExactly(lookupColors, 0, lookupColors.Length);
textureFile.LookupColors = lookupColors;
var mipmapBytesList = ReadMipmapsAsIndexes(
mipmapBytesList = ReadMipmapsAsIndexes(
stream,
mipmapCount,
width,
height
);
textureFile.MipmapBytes = mipmapBytesList;
textureFile.IsIndexed = true;
isIndexed = true;
}
else
{
var mipmapBytesList = ReadMipmaps(
mipmapBytesList = ReadMipmaps(
stream,
format.AsStride(),
mipmapCount,
width,
height
);
textureFile.MipmapBytes = mipmapBytesList;
}
PageHeader? pages = null;
if (stream.Position < stream.Length)
{
// has PAGE data
var pageHeader = ReadPage(stream);
textureFile.Pages = pageHeader;
pages = ReadPage(stream);
}
var textureFile = new TexmFile(file, header, mipmapBytesList, pages, isIndexed, lookupColors);
return new TexmParseResult(textureFile);
}
@@ -142,17 +134,12 @@ public class TexmParser
private static List<byte[]> ReadMipmaps(Stream stream, int stride, int mipmapCount, int topWidth, int topHeight)
{
if (stride == 0)
{
stride = 16;
}
List<int> mipmapByteLengths = [];
for (int i = 0; i < mipmapCount; i++)
{
var mipWidth = topWidth / (int) Math.Pow(2, i);
var mipHeight = topHeight / (int) Math.Pow(2, i);
var mipWidth = Math.Max(1, topWidth >> i);
var mipHeight = Math.Max(1, topHeight >> i);
var imageByteLength = mipWidth * mipHeight * (stride / 8);
mipmapByteLengths.Add(imageByteLength);
@@ -178,8 +165,8 @@ public class TexmParser
for (int i = 0; i < mipmapCount; i++)
{
var mipWidth = topWidth / (int) Math.Pow(2, i);
var mipHeight = topHeight / (int) Math.Pow(2, i);
var mipWidth = Math.Max(1, topWidth >> i);
var mipHeight = Math.Max(1, topHeight >> i);
var imageByteLength = mipWidth * mipHeight;
mipmapByteLengths.Add(imageByteLength);
@@ -198,4 +185,4 @@ public class TexmParser
return mipmapBytesList;
}
}
}