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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.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16936 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2008-04-02 22:16:14 +00:00
parent cdae493f96
commit 5c87a98b97
9 changed files with 313 additions and 229 deletions
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24
firmware/backlight.c
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@ -631,13 +631,13 @@ void backlight_off(void)
queue_post(&backlight_queue, BACKLIGHT_OFF, 0);
}
/* returns true when the backlight is on OR when it's set to always off */
bool is_backlight_on(void)
/* returns true when the backlight is on,
* and optionally when it's set to always off. */
bool is_backlight_on(bool ignore_always_off)
{
if (backlight_timer || backlight_timeout <= 0)
return true;
else
return false;
return (backlight_timer > 0) /* countdown */
|| (backlight_timeout == 0) /* always on */
|| ((backlight_timeout < 0) && !ignore_always_off);
}
/* return value in ticks; 0 means always on, <0 means always off */
@ -752,13 +752,13 @@ int remote_backlight_get_current_timeout(void)
return remote_backlight_timeout;
}
/* returns true when the backlight is on OR when it's set to always off */
bool is_remote_backlight_on(void)
/* returns true when the backlight is on, and
* optionally when it's set to always off */
bool is_remote_backlight_on(bool ignore_always_off)
{
if (remote_backlight_timer != 0 || remote_backlight_timeout <= 0)
return true;
else
return false;
return (remote_backlight_timer > 0) /* countdown */
|| (remote_backlight_timeout == 0) /* always on */
|| ((remote_backlight_timeout < 0) && !ignore_always_off);
}
#endif /* HAVE_REMOTE_LCD */