public static bool TryParseDimensions(string format, out PaletteFormat paletteFormat)
{
paletteFormat = default;
var formatContent = format.Substring(4, format.Length - 5);
var pageSplit = formatContent.Split(':');
if (!int.TryParse(pageSplit[0], out var bits))
{
return(false);
}
int pages = 1, pageStart = 0;
if (pageSplit.Length == 2)
{
var lastPageID = pageSplit[1].ToUpper().LastOrDefault();
var lastPageIndex = ViewModels.ViewPort.AllHexCharacters.IndexOf(lastPageID);
if (lastPageIndex > 0)
{
pages = lastPageIndex + 1;
}
var firstPageID = pageSplit[1].ToUpper().FirstOrDefault();
var firstPageIndex = ViewModels.ViewPort.AllHexCharacters.IndexOf(firstPageID);
if (firstPageIndex > 0)
{
pageStart = firstPageIndex;
}
pages -= firstPageIndex;
}
paletteFormat = new PaletteFormat(bits, pages, pageStart);
return(true);
}
public static bool TryParsePaletteFormat(string pointerFormat, out PaletteFormat paletteFormat)
{
paletteFormat = default;
if (!pointerFormat.StartsWith("`lzp") || !pointerFormat.EndsWith("`"))
{
return(false);
}
return(TryParseDimensions(pointerFormat, out paletteFormat));
}
public LzPaletteRun(PaletteFormat paletteFormat, IDataModel data, int start, SortedSpan <int> sources = null)
: base(data, start, allowLengthErrors: paletteFormat.AllowLengthErrors, sources)
{
PaletteFormat = paletteFormat;
if ((int)Math.Pow(2, paletteFormat.Bits) * 2 > DecompressedLength)
{
InvalidateLength();
}
FormatString = $"`lzp{paletteFormat.Bits}`";
if (paletteFormat.InitialBlankPages != 0)
{
FormatString = $"`lzp{paletteFormat.Bits}:";
for (int i = 0; i < paletteFormat.Pages; i++)
{
FormatString += ViewModels.ViewPort.AllHexCharacters[paletteFormat.InitialBlankPages + i];
}
FormatString += "`";
}
}
public PaletteRun(int start, PaletteFormat format, SortedSpan <int> sources = null) : base(start, sources)
{
PaletteFormat = format;
bits = format.Bits;
Pages = format.Pages;
if (bits == 8)
{
Length = 512;
}
if (bits == 4)
{
Length = Pages * 32;
}
var pagesPart = string.Empty;
if (Pages > 1 || format.InitialBlankPages > 0)
{
pagesPart = ":" + GetPalettePages(format);
}
FormatString = $"`ucp{bits}{pagesPart}`";
}
public IPaletteRun Duplicate(PaletteFormat newFormat) => new LzPaletteRun(newFormat, Model, Start, PointerSources);
public IPaletteRun Duplicate(PaletteFormat newFormat) => new PaletteRun(Start, newFormat, PointerSources);
public static string GetPalettePages(PaletteFormat format)
{
var pageIDs = Enumerable.Range(format.InitialBlankPages, format.Pages).Select(i => ViewModels.ViewPort.AllHexCharacters[i]);
return(new string(pageIDs.ToArray()));
}
