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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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18
ArcFormats/EmonEngine/ImageBMP.cs
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@@ -77,7 +77,7 @@ namespace GameRes.Formats.EmonEngine
stream.Position = meta.DataOffset;
BitmapPalette palette = null;
if (meta.Colors != 0)
palette = ReadPalette (stream.AsStream, Math.Max (meta.Colors, 3));
palette = ReadPalette (stream.AsStream, Math.Max (meta.Colors, 3), PaletteFormat.RgbX);
var pixels = new byte[meta.Stride * (int)info.Height];
if (meta.LzssFrameSize != 0)
{
@@ -107,22 +107,6 @@ namespace GameRes.Formats.EmonEngine
return ImageData.CreateFlipped (info, format, palette, pixels, meta.Stride);
}
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];
int src = 0;
for (int i = 0; i < palette.Length; ++i)
{
palette[i] = Color.FromRgb (palette_data[src], palette_data[src+1], palette_data[src+2]);
src += 4;
}
return new BitmapPalette (palette);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("EmFormat.Write not implemented");