diff options
| author | Jens Arnold <amiconn@rockbox.org> | 2008-04-02 22:16:14 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2008-04-02 22:16:14 +0000 |
| commit | 5c87a98b97b9ab6bd9647bb0bb8d00f58d5f179b (patch) | |
| tree | b61feaa66d26f63df09f03d0cb6921ac80edf560 /apps/plugins/lib/grey.h | |
| parent | cdae493f96150808007883a7fb0b582d46af4a1a (diff) | |
Greyscale library: * Implement linearisation curve flipping for 1st/2nd Gen iPods (LCD is inverted when backlight is on, so the curve is also inverted). This needs a slight extension of is_backlight_on() functionality in the core. * Thorough recalibration of all reachable greyscale targets, and #ifdef cleanup. * Reduce on-target gamma a bit, because the displayable contrast range of a monochrome/greyscale isn't that high.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16936 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/lib/grey.h')
| -rw-r--r-- | apps/plugins/lib/grey.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/apps/plugins/lib/grey.h b/apps/plugins/lib/grey.h index 4298ae3ada..3d5e6d16c4 100644 --- a/apps/plugins/lib/grey.h +++ b/apps/plugins/lib/grey.h @@ -120,9 +120,16 @@ void grey_ub_scroll_down(int count); /*** Internal stuff ***/ +/* standard gamma (s23p8) */ +#ifdef SIMULATOR /* Standard PC gamma */ +#define _GREY_GAMMA ((200<<8)/100) +#else /* Target LCDs have a smaller contrast range */ +#define _GREY_GAMMA ((180<<8)/100) +#endif + /* flag definitions */ -#define _GREY_RUNNING 0x0001 /* greyscale overlay is running */ -#define _GREY_DEFERRED_UPDATE 0x0002 /* lcd_update() requested */ +#define _GREY_RUNNING 0x8000 /* greyscale overlay is running */ +#define _GREY_DEFERRED_UPDATE 0x4000 /* lcd_update() requested */ /* fast unsigned multiplication (16x16bit->32bit or 32x32bit->32bit, * whichever is faster for the architecture) */ |