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LCD contrast setting on F2/F3

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4567 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jörg Hohensohn 2004-04-30 21:38:24 +00:00
parent a2d9dbdcb9
commit 33b4629b66
1 changed files with 42 additions and 0 deletions
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42
apps/plugins/video.c
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@ -272,6 +272,35 @@ void ChangeVolume(int delta)
} }
// helper function to change the LCD contrast by a certain amount, +/-
void ChangeContrast(int delta)
{
static int mycontrast = -1; /* the "permanent" value while running */
int contrast; /* updated value */
if (mycontrast == -1)
mycontrast = rb->global_settings->contrast;
contrast = mycontrast + delta;
if (contrast > 63) contrast = 63;
else if (contrast < 5) contrast = 5;
if (contrast != mycontrast)
{
rb->lcd_set_contrast(contrast);
mycontrast = contrast;
rb->snprintf(gPrint, sizeof(gPrint), "Contrast: %d", contrast);
rb->lcd_puts(0, 7, gPrint);
if (gPlay.state == paused) // we have to draw ourselves
rb->lcd_update_rect(0, LCD_HEIGHT-8, LCD_WIDTH, 8);
else // let the display time do it
{
gPlay.nTimeOSD = 50; // display it for 50 frames
gPlay.bDirtyOSD = true; // let the refresh copy it to LCD
}
}
}
// sync the video to the current audio // sync the video to the current audio
void SyncVideo(void) void SyncVideo(void)
{ {
@ -681,6 +710,16 @@ int PlayTick(int fd)
gPlay.nTimeOSD = 30; gPlay.nTimeOSD = 30;
gPlay.bDirtyOSD = true; gPlay.bDirtyOSD = true;
break; break;
case BUTTON_F2: // contrast down
case BUTTON_F2 | BUTTON_REPEAT:
if (gPlay.bHasVideo)
ChangeContrast(-1);
break;
case BUTTON_F3: // contrast up
case BUTTON_F3 | BUTTON_REPEAT:
if (gPlay.bHasVideo)
ChangeContrast(1);
break;
} }
} /* if (button != BUTTON_NONE) */ } /* if (button != BUTTON_NONE) */
@ -836,6 +875,9 @@ int main(char* filename)
// restore normal backlight setting // restore normal backlight setting
rb->backlight_set_timeout(rb->global_settings->backlight_timeout); rb->backlight_set_timeout(rb->global_settings->backlight_timeout);
// restore normal contrast
rb->lcd_set_contrast(rb->global_settings->contrast);
if (retval < 0) // aborted? if (retval < 0) // aborted?
{ {
return PLUGIN_USB_CONNECTED; return PLUGIN_USB_CONNECTED;