public static BluRaySupPalette DecodePalette(IList <PaletteInfo> paletteInfos)
{
BluRaySupPalette palette = new BluRaySupPalette(256);
// by definition, index 0xff is always completely transparent
// also all entries must be fully transparent after initialization
bool fadeOut = false;
for (int j = 0; j < paletteInfos.Count; j++)
{
PaletteInfo p = paletteInfos[j];
int index = 0;
for (int i = 0; i < p.PaletteSize; i++)
{
// each palette entry consists of 5 bytes
int palIndex = p.PaletteBuffer[index];
int y = p.PaletteBuffer[++index];
int cr = p.PaletteBuffer[++index];
int cb = p.PaletteBuffer[++index];
int alpha = p.PaletteBuffer[++index];
int alphaOld = palette.GetAlpha(palIndex);
// avoid fading out
if (alpha >= alphaOld)
{
if (alpha < AlphaCrop)
{// to not mess with scaling algorithms, make transparent color black
y = 16;
cr = 128;
cb = 128;
}
palette.SetAlpha(palIndex, alpha);
}
else
{
fadeOut = true;
}
palette.SetYCbCr(palIndex, y, cb, cr);
index++;
}
}
if (fadeOut)
{
System.Diagnostics.Debug.Print("fade out detected -> patched palette\n");
}
return(palette);
}
public static BluRaySupPalette DecodePalette(IList<PaletteInfo> paletteInfos)
{
BluRaySupPalette palette = new BluRaySupPalette(256);
// by definition, index 0xff is always completely transparent
// also all entries must be fully transparent after initialization
bool fadeOut = false;
for (int j = 0; j < paletteInfos.Count; j++)
{
PaletteInfo p = paletteInfos[j];
int index = 0;
for (int i = 0; i < p.PaletteSize; i++)
{
// each palette entry consists of 5 bytes
int palIndex = p.PaletteBuffer[index];
int y = p.PaletteBuffer[++index];
int cr = p.PaletteBuffer[++index];
int cb = p.PaletteBuffer[++index];
int alpha = p.PaletteBuffer[++index];
int alphaOld = palette.GetAlpha(palIndex);
// avoid fading out
if (alpha >= alphaOld)
{
if (alpha < AlphaCrop)
{// to not mess with scaling algorithms, make transparent color black
y = 16;
cr = 128;
cb = 128;
}
palette.SetAlpha(palIndex, alpha);
}
else
{
fadeOut = true;
}
palette.SetYCbCr(palIndex, y, cb, cr);
index++;
}
}
if (fadeOut)
{
System.Diagnostics.Debug.Print("fade out detected -> patched palette\n");
}
return palette;
}
