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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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20
ArcFormats/MAI/ImageMAI.cs
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@@ -123,7 +123,7 @@ namespace GameRes.Formats.MAI
if (info.Colors > 0)
{
m_input.Position = 0x20;
Palette = RleDecoder.ReadPalette (m_input, info.Colors, 3);
Palette = ImageFormat.ReadPalette (m_input, info.Colors, PaletteFormat.Bgr);
}
m_input.Position = info.DataOffset;
int size = info.IsCompressed ? m_width*m_height*m_pixel_size : (int)info.DataLength;
@@ -240,7 +240,7 @@ namespace GameRes.Formats.MAI
{
m_input.Position = m_info.DataOffset;
if (m_info.Colors > 0)
Palette = RleDecoder.ReadPalette (m_input, m_info.Colors, 3);
Palette = ImageFormat.ReadPalette (m_input, m_info.Colors, PaletteFormat.Bgr);
if (m_info.IsCompressed)
RleDecoder.Unpack (m_input, (int)m_info.DataLength, m_output, m_pixel_size);
else
@@ -324,7 +324,7 @@ namespace GameRes.Formats.MAI
{
var meta = (CmMetaData)info;
stream.Position = meta.DataOffset;
var palette = RleDecoder.ReadPalette (stream.AsStream, 0x100, 4);
var palette = ReadPalette (stream.AsStream, 0x100, PaletteFormat.BgrX);
var pixels = new byte[info.Width*info.Height];
if (meta.IsCompressed)
@@ -341,20 +341,6 @@ namespace GameRes.Formats.MAI
internal class RleDecoder
{
public static BitmapPalette ReadPalette (Stream input, int colors, int color_size)
{
var palette_data = new byte[colors*color_size];
if (palette_data.Length != input.Read (palette_data, 0, palette_data.Length))
throw new InvalidFormatException();
var palette = new Color[colors];
for (int i = 0; i < palette.Length; ++i)
{
int c = i * color_size;
palette[i] = Color.FromRgb (palette_data[c+2], palette_data[c+1], palette_data[c]);
}
return new BitmapPalette (palette);
}
static public void Unpack (Stream input, int input_size, byte[] output, int pixel_size)
{
int read = 0;