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Load_GIF(): Be more tolerant on ratio values

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This commit is contained in:
Thomas Bernard 2018-03-05 23:53:37 +01:00
parent 4338d31f04
commit f9dc86eb87
1 changed files with 8 additions and 12 deletions
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20
src/fileformats.c
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@ -4087,18 +4087,14 @@ void Load_GIF(T_IO_Context * context)
Original_screen_X=LSDB.Width;
Original_screen_Y=LSDB.Height;
switch(LSDB.Aspect) {
case 17: // (17 + 15) / 64 = 1:2
ratio=PIXEL_TALL;
break;
case 33: // (33 + 15) / 64 = 3:4
ratio=PIXEL_TALL3;
break;
case 113: // (113 + 15) / 64 = 2:1
ratio=PIXEL_WIDE;
break;
default:
ratio=PIXEL_SIMPLE;
ratio=PIXEL_SIMPLE; // (49 + 15) / 64 = 1:1
if (LSDB.Aspect != 0) {
if (LSDB.Aspect < 25) // (17 + 15) / 64 = 1:2
ratio=PIXEL_TALL;
else if (LSDB.Aspect < 41) // (33 + 15) / 64 = 3:4
ratio=PIXEL_TALL3;
else if (LSDB.Aspect > 82) // (113 + 15) / 64 = 2:1
ratio=PIXEL_WIDE;
}
Pre_load(context, LSDB.Width,LSDB.Height,file_size,FORMAT_GIF,ratio,(LSDB.Resol&7)+1);