public static STim Decode8(byte[] picbin, byte[] palbin, int tbw, int cx, int cy)
{
var bitmap = new Bitmap(cx, cy, PixelFormat.Format8bppIndexed);
tbw /= 2;
byte[] array = Reform8.Decode8(picbin, tbw, Math.Max(1, picbin.Length / 8192 / tbw));
BitmapData bitmapData = bitmap.LockBits(Rectangle.FromLTRB(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.WriteOnly, PixelFormat.Format8bppIndexed);
try
{
int val = bitmapData.Stride * bitmapData.Height;
Marshal.Copy(array, 0, bitmapData.Scan0, Math.Min(array.Length, val));
}
finally
{
bitmap.UnlockBits(bitmapData);
}
ColorPalette palette = bitmap.Palette;
int num = 0;
var array2 = new byte[1024];
for (int i = 0; i < 256; i++)
{
int num2 = KHcv8pal.repl(i);
Array.Copy(palbin, 4 * i, array2, 4 * num2, 4);
}
Array.Copy(array2, 0, palbin, 0, 1024);
for (int j = 0; j < 256; j++)
{
palette.Entries[j] =
CUtil.NoGamma(
Color.FromArgb(AcUt.GetA(palbin[num + 4 * j + 3]) ^ (j & 1),
Math.Min(255, palbin[num + 4 * j] + 1), Math.Min(255, palbin[num + 4 * j + 1] + 1),
Math.Min(255, palbin[num + 4 * j + 2] + 1)), 0.5f);
}
bitmap.Palette = palette;
return(new STim(bitmap));
}
/// <summary>
/// Function that will parse an IMGD file
/// </summary>
/// <param name="si">MemoryStream of the file</param>
/// <returns></returns>
public static PicIMGD TakeIMGD(MemoryStream si)
{
si.Position = 0L;
if (si.ReadByte() != 73)
{
throw new NotSupportedException("!IMGD");
}
if (si.ReadByte() != 77)
{
throw new NotSupportedException("!IMGD");
}
if (si.ReadByte() != 71)
{
throw new NotSupportedException("!IMGD");
}
if (si.ReadByte() != 68)
{
throw new NotSupportedException("!IMGD");
}
var binaryReader = new BinaryReader(si);
binaryReader.ReadInt32();
int num = binaryReader.ReadInt32();
int count = binaryReader.ReadInt32();
int num2 = binaryReader.ReadInt32();
int count2 = binaryReader.ReadInt32();
si.Position = 28L;
int num3 = binaryReader.ReadUInt16();
int num4 = binaryReader.ReadUInt16();
si.Position = 38L;
int num5 = binaryReader.ReadUInt16();
si.Position = 60L;
int num6 = binaryReader.ReadByte();
bool flag = num6 == 7;
si.Position = num;
byte[] array = binaryReader.ReadBytes(count);
si.Position = num2;
byte[] array2 = binaryReader.ReadBytes(count2);
int num7 = num3;
int num8 = num4;
if (num5 == 19)
{
int num9 = num3 / 128;
int num10 = num4 / 64;
int bw = num9;
int bh = num10;
byte[] array3 = flag ? Reform8.Decode8(Reform32.Encode32(array, num9, num10), bw, bh) : array;
var bitmap = new Bitmap(num7, num8, PixelFormat.Format8bppIndexed);
BitmapData bitmapData = bitmap.LockBits(Rectangle.FromLTRB(0, 0, num7, num8), ImageLockMode.WriteOnly,
PixelFormat.Format8bppIndexed);
try
{
Marshal.Copy(array3, 0, bitmapData.Scan0, array3.Length);
}
finally
{
bitmap.UnlockBits(bitmapData);
}
var array4 = new byte[8192];
Array.Copy(array2, 0, array4, 0, Math.Min(8192, array2.Length));
byte[] array5 = array4;
ColorPalette palette = bitmap.Palette;
for (int i = 0; i < 256; i++)
{
int num11 = i;
int num12 = KHcv8pal_swap34.repl(i);
palette.Entries[num12] = Color.FromArgb(Math.Min(255, array5[4 * num11 + 3] * 2), array5[4 * num11],
array5[4 * num11 + 1], array5[4 * num11 + 2]);
}
bitmap.Palette = palette;
return(new PicIMGD(bitmap));
}
if (num5 == 20)
{
int num13 = num3 / 128;
int num14 = num4 / 128;
int bw2 = num13;
int bh2 = num14;
byte[] array6 = flag
? Reform4.Decode4(Reform32.Encode32(array, num13, num14), bw2, bh2)
: HLUt.Swap(array);
var bitmap2 = new Bitmap(num7, num8, PixelFormat.Format4bppIndexed);
BitmapData bitmapData2 = bitmap2.LockBits(Rectangle.FromLTRB(0, 0, num7, num8), ImageLockMode.WriteOnly,
PixelFormat.Format4bppIndexed);
try
{
Marshal.Copy(array6, 0, bitmapData2.Scan0, array6.Length);
}
finally
{
bitmap2.UnlockBits(bitmapData2);
}
var array7 = new byte[8192];
Array.Copy(array2, 0, array7, 0, Math.Min(8192, array2.Length));
byte[] array8 = array7;
ColorPalette palette2 = bitmap2.Palette;
for (int j = 0; j < 16; j++)
{
int num15 = j;
int num16 = j;
palette2.Entries[num16] = Color.FromArgb(Math.Min(255, array8[4 * num15 + 3] * 2), array8[4 * num15],
array8[4 * num15 + 1], array8[4 * num15 + 2]);
}
bitmap2.Palette = palette2;
return(new PicIMGD(bitmap2));
}
throw new NotSupportedException("v26 = " + num5.ToString("X"));
}