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(ImageFormat.ReadPalette): new static methods.

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Generalized image palette deserializations.
This commit is contained in:
morkt
2017-01-14 16:27:11 +04:00
parent 832a1a3ff0
commit 13cf289bae
25 changed files with 87 additions and 331 deletions
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21
ArcFormats/BlackCyc/ImageDWQ.cs
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@@ -260,7 +260,7 @@ namespace GameRes.Formats.BlackCyc
if (8 == bpp)
{
int colors = Math.Min (header.ToInt32 (0x2E), 0x100);
palette = DwqBmpReader.ReadPalette (file.AsStream, colors);
palette = ImageFormat.ReadPalette (file.AsStream, colors);
}
int pixel_size = bpp / 8;
int stride = ((int)info.Width * pixel_size + 3) & ~3;
@@ -324,30 +324,13 @@ namespace GameRes.Formats.BlackCyc
int colors = Math.Min (LittleEndian.ToInt32 (header, 0x2E), 0x100);
if (0 == colors)
colors = 0x100;
Palette = ReadPalette (m_input, colors);
Palette = ImageFormat.ReadPalette (m_input, colors);
}
uint data_position = LittleEndian.ToUInt32 (header, 0xA);
m_input.Position = data_position;
m_pixels = new byte[Stride*m_height];
}
public static BitmapPalette ReadPalette (Stream input, int colors)
{
int palette_size = colors * 4;
var palette_data = new byte[palette_size];
if (palette_size != input.Read (palette_data, 0, palette_size))
throw new InvalidFormatException();
var palette = new Color[colors];
for (int i = 0; i < palette.Length; ++i)
{
byte r = palette_data[i*4+2];
byte g = palette_data[i*4+1];
byte b = palette_data[i*4];
palette[i] = Color.FromRgb (r, g, b);
}
return new BitmapPalette (palette);
}
public void Unpack () // sub_408990
{
var prev_line = new byte[Stride];