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authorsandman <sandman>2002-10-28 23:41:14 (UTC)
committer sandman <sandman>2002-10-28 23:41:14 (UTC)
commita775c3be38fc7fbd5d120e7e3c1dd3a80a250293 (patch) (side-by-side diff)
tree6cca17bab081143f2d0321c317d26f91042f729f /core
parent7aaf3d45d9156a126a753311ffdb220a550d47a5 (diff)
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- OpieScreenSaver now uses the calibration data for the light sensor
Diffstat (limited to 'core') (more/less context) (ignore whitespace changes)
-rw-r--r--core/launcher/screensaver.cpp37
-rw-r--r--core/launcher/screensaver.h13
2 files changed, 48 insertions, 2 deletions
diff --git a/core/launcher/screensaver.cpp b/core/launcher/screensaver.cpp
index 9e823ff..741591e 100644
--- a/core/launcher/screensaver.cpp
+++ b/core/launcher/screensaver.cpp
@@ -11,6 +11,7 @@
using namespace Opie;
+
OpieScreenSaver::OpieScreenSaver ( )
: QObject ( 0, "screensaver" ), QWSScreenSaver ( )
{
@@ -27,6 +28,7 @@ OpieScreenSaver::OpieScreenSaver ( )
m_use_light_sensor = false;
m_backlight_sensor = -1;
+ ::memset ( m_sensordata, 0xff, LS_Count * sizeof( m_sensordata [0] ));
m_lcd_status = true;
@@ -173,8 +175,22 @@ void OpieScreenSaver::setBacklight ( int bright )
killTimers ( );
if ( m_use_light_sensor ) {
+ QStringList sl = config. readListEntry ( "LightSensorData", ';' );
+
+ m_sensordata [LS_SensorMin] = 40;
+ m_sensordata [LS_SensorMax] = 215;
+ m_sensordata [LS_LightMin] = 1;
+ m_sensordata [LS_LightMax] = 255;
+ m_sensordata [LS_Steps] = 12;
+ m_sensordata [LS_Interval] = 2000;
+
+ for ( uint i = 0; i < LS_Count; i++ ) {
+ if ( i < sl. count ( ))
+ m_sensordata [i] = sl [i]. toInt ( );
+ }
+
timerEvent ( 0 );
- startTimer ( 2000 );
+ startTimer ( m_sensordata [LS_Interval] );
}
setBacklightInternal ( bright );
@@ -207,7 +223,24 @@ void OpieScreenSaver::setBacklightInternal ( int bright )
void OpieScreenSaver::timerEvent ( QTimerEvent * )
{
- m_backlight_sensor = (( 255 - ODevice::inst ( )-> readLightSensor ( )) * m_backlight_normal ) / 255;
+ int s = ODevice::inst ( )-> readLightSensor ( );
+
+ if ( s < m_sensordata [LS_SensorMin] )
+ m_backlight_sensor = m_sensordata [LS_LightMax];
+ else if ( s >= m_sensordata [LS_SensorMax] )
+ m_backlight_sensor = m_sensordata [LS_LightMin];
+ else {
+ int dx = m_sensordata [LS_SensorMax] - m_sensordata [LS_SensorMin];
+ int dy = m_sensordata [LS_LightMax] - m_sensordata [LS_LightMin];
+
+ int stepno = ( s - m_sensordata [LS_SensorMin] ) * m_sensordata [LS_Steps] / dx;
+
+ m_backlight_sensor = m_sensordata [LS_LightMax] - dy * stepno / ( m_sensordata [LS_Steps] - 1 );
+ }
+ if ( !m_backlight_sensor )
+ m_backlight_sensor = 1;
+
+ // qDebug ( "f(%d) = %d [%d - %d] -> [%d - %d] / %d", s, m_backlight_sensor, m_sensordata [LS_SensorMin], m_sensordata [LS_SensorMax], m_sensordata [LS_LightMin], m_sensordata [LS_LightMax], m_sensordata [LS_Steps] );
if ( m_level <= 0 )
setBacklightInternal ( -1 );
diff --git a/core/launcher/screensaver.h b/core/launcher/screensaver.h
index 9126f33..da10a8d 100644
--- a/core/launcher/screensaver.h
+++ b/core/launcher/screensaver.h
@@ -47,6 +47,19 @@ private:
bool m_use_light_sensor;
int m_backlight_sensor;
+ enum {
+ LS_Interval = 0,
+ LS_Steps,
+ LS_SensorMin,
+ LS_SensorMax,
+ LS_LightMin,
+ LS_LightMax,
+
+ LS_Count
+ };
+
+ int m_sensordata [LS_Count];
+
bool m_lcd_status;
int m_backlight_normal;