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Fix transparency in C64 visualizer 

GIF only allows for one transparent palette entry.

(issue #145)
This commit is contained in:
Andy McFadden 2023-02-14 14:03:38 -08:00
parent edc92cf5d6
commit 31d4bf8bfa
2 changed files with 11 additions and 6 deletions
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6
CommonUtil/UnpackedGif.cs
View File

@ -346,6 +346,12 @@ namespace CommonUtil {
" height=" + grb.ImageHeight);
Debug.WriteLine(" localCT=" + grb.LocalColorTableFlag + " size=" +
grb.LocalColorTableSize + " itrl=" + grb.InterlaceFlag);
for (int i = 0; i < grb.LocalColorTable.Length; i += 3) {
Debug.WriteLine(" " + (i / 3) + ": $" +
grb.LocalColorTable[i].ToString("x2") + " $" +
grb.LocalColorTable[i + 1].ToString("x2") + " $" +
grb.LocalColorTable[i + 2].ToString("x2"));
}
}
}
}

11
SourceGen/RuntimeData/Commodore/VisC64.cs
View File

@ -433,7 +433,11 @@ namespace RuntimeData.Commodore {
}
private const byte TRANSPARENT = 16;
private const byte BORDER_COLOR = 17;
#if SHOW_BORDER
private const byte BORDER_COLOR = 0;
#else
private const byte BORDER_COLOR = TRANSPARENT;
#endif
// C64 colors, from http://unusedino.de/ec64/technical/misc/vic656x/colors/
// (the ones on https://www.c64-wiki.com/wiki/Color looked wrong)
@ -455,11 +459,6 @@ namespace RuntimeData.Commodore {
vb.SetColor(14, 0xff, 0x6c, 0x5e, 0xb5); // 14=light blue
vb.SetColor(15, 0xff, 0x95, 0x95, 0x95); // 15=light grey
vb.SetColor(16, 0, 0, 0, 0); // 16=transparent
#if SHOW_BORDER
vb.SetColor(17, 0xff, 0x00, 0xd6, 0xff); // 17=grid border
#else
vb.SetColor(17, 0, 0, 0, 0); // 17=grid border
#endif
}
}
}