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add rgbx support

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This commit is contained in:
ManicSteiner
2025-01-14 14:07:21 +08:00
parent 95ffcf075a
commit 700084a820
1 changed files with 19 additions and 4 deletions
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23
ArcFormats/DigitalWorks/ImageTM2.cs
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@@ -36,6 +36,7 @@ namespace GameRes.Formats.DigitalWorks
public int PaletteSize;
public int HeaderSize;
public int Colors;
public bool X_A = false;
}
[Export(typeof(ImageFormat))]
@@ -69,6 +70,7 @@ namespace GameRes.Formats.DigitalWorks
PaletteSize = header.ToInt32 (0x14),
HeaderSize = header.ToUInt16 (0x1C),
Colors = header.ToUInt16 (0x1E),
X_A = header.ToUInt16(0x30) == 0, // not so sure, there will be omissions
};
}
@@ -113,9 +115,9 @@ namespace GameRes.Formats.DigitalWorks
int image_size = (int)m_info.Width * (int)m_info.Height * pixel_size;
var output = m_input.ReadBytes (image_size);
if (pixel_size <= 8 && m_info.Colors > 0)
Palette = ReadPalette (m_info.Colors);
Palette = ReadPalette (m_info.Colors, m_info.X_A);
if (pixel_size >= 3)
if (pixel_size == 3 || pixel_size == 4 && !m_info.X_A)
{
for (int i = 0; i < image_size; i += pixel_size)
{
@@ -124,12 +126,25 @@ namespace GameRes.Formats.DigitalWorks
output[i+2] = r;
}
}
if (pixel_size == 4 && m_info.X_A)
{
for (int i = 0; i < image_size; i += 4)
{
byte r = output[i];
output[i] = output[i + 2];
output[i + 2] = r;
if (output[i + 3] >= byte.MaxValue / 2)
output[i + 3] = byte.MaxValue;
else
output[i + 3] = (byte)(output[i + 3] << 1);
}
}
return output;
}
BitmapPalette ReadPalette (int color_num)
BitmapPalette ReadPalette (int color_num, bool X_A = false)
{
var source = ImageFormat.ReadColorMap (m_input.AsStream, color_num, PaletteFormat.RgbA);
var source = ImageFormat.ReadColorMap (m_input.AsStream, color_num, X_A ? PaletteFormat.RgbX : PaletteFormat.RgbA);
var color_map = new Color[color_num];
int parts = color_num / 32;