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Use freetype's LCD subpixel code instead of scaling manually if the freetype used is sufficiently new.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@18192 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Alexander Malmberg 2003-11-25 11:13:38 +00:00
parent 4939ec5b67
commit 8086d127a6
2 changed files with 16 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2003-11-25 12:09 Alexander Malmberg <alexander@malmberg.org>
* Source/art/ftfont.m ([FTFontInfo_subpixel
-drawGlyphs::at::to::::::color::::transform:drawinfo:): If freetype
is sufficiently new, use its LCD subpixel support instead of scaling
manually.
2003-11-23 Adam Fedor <fedor@gnu.org>
* Version 0.9.1

10
Source/art/ftfont.m
View file

@ -2441,7 +2441,7 @@ static int filters[3][7]=
#ifdef FT212_STUFF
cur.type = ftc_image_grays, subpixel = YES, cur.font.pix_width *= 3, x *= 3;
#else
cur.flags = FT_LOAD_TARGET_NORMAL, subpixel = YES, cur.font.pix_width *= 3, x *= 3;
cur.flags = FT_LOAD_TARGET_LCD, subpixel = YES;
#endif
// imgd.type|=|ftc_image_flag_unhinted; /* TODO? when? */
}
@ -2490,9 +2490,17 @@ static int filters[3][7]=
continue;
}
#ifdef FT212_STUFF
if (sbit->format == ft_pixel_mode_grays)
#else
if (sbit->format == FT_PIXEL_MODE_LCD)
#endif
{
#ifdef FT212_STUFF
int gx = x + sbit->left, gy = y - sbit->top;
#else
int gx = 3 * x + sbit->left, gy = y - sbit->top;
#endif
int px0 = (gx - 2 < 0? gx - 4 : gx - 2) / 3;
int px1 = (gx + sbit->width + 2 < 0? gx + sbit->width + 2: gx + sbit->width + 4) / 3;
int llip = gx - px0 * 3;