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Spin: refactored initialization of monitor info; gave each monitor its own random switch time

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This commit is contained in:
Josh Holtrop 2010-12-08 11:52:30 -05:00
parent 7d16486f8f
commit a3936d1e43
2 changed files with 37 additions and 24 deletions
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56
modes/Spin.cc
View File

@ -7,8 +7,6 @@
#include "Spin.h"
#define SWITCH_TIME 5000
static const float directions[][3] = {
{0, 0, 1}, {0, 0, -1}, {0, 1, 0}, {0, -1, 0}, {1, 0, 0}, {-1, 0, 0}
};
@ -17,11 +15,9 @@ Spin::Spin()
{
m_num_monitors = 1;
m_monitor_info = new monitor_info_t[m_num_monitors];
m_monitor_info[0].direction = 1;
glGetFloatv(GL_MODELVIEW_MATRIX, &m_monitor_info[0].rotation[0]);
m_last_switch_ticks = 0;
m_last_ticks = 0;
srand(time(NULL));
initMonitorInfo();
}
Spin::~Spin()
@ -32,18 +28,16 @@ Spin::~Spin()
bool Spin::expose (GnomeScreensaver & gs)
{
if (m_last_ticks == 0)
m_last_switch_ticks = m_last_ticks = gs.getTicks();
else if (gs.getTicks() - m_last_switch_ticks > SWITCH_TIME)
m_last_ticks = gs.getTicks();
else for (int i = 0; i < m_num_monitors; i++)
{
for (int i = 0; i < m_num_monitors; i++)
if (gs.getTicks() - m_monitor_info[i].last_switch_ticks
> m_monitor_info[i].switch_time)
{
m_monitor_info[i].direction = (int) (rand() / (double)RAND_MAX *
sizeof(directions) / sizeof(directions[0]));
if (m_monitor_info[i].direction
>= sizeof(directions) / sizeof(directions[0]))
m_monitor_info[i].direction = 0;
m_monitor_info[i].direction = getRandomDirection();
m_monitor_info[i].switch_time = getRandomSwitchTime();
m_monitor_info[i].last_switch_ticks = gs.getTicks();
}
m_last_switch_ticks = gs.getTicks();
}
int width = gs.getWidth() / m_num_monitors;
@ -84,15 +78,7 @@ bool Spin::configure (GnomeScreensaver & gs)
m_num_monitors = gs.getNumMonitors();
delete[] m_monitor_info;
m_monitor_info = new monitor_info_t[m_num_monitors];
for (int i = 0; i < m_num_monitors; i++)
{
m_monitor_info[i].direction = (int) (rand() / (double)RAND_MAX *
sizeof(directions) / sizeof(directions[0]));
if (m_monitor_info[i].direction
>= sizeof(directions) / sizeof(directions[0]))
m_monitor_info[i].direction = 0;
glGetFloatv(GL_MODELVIEW_MATRIX, &m_monitor_info[i].rotation[0]);
}
initMonitorInfo();
return true;
}
@ -102,3 +88,27 @@ bool Spin::update (GnomeScreensaver & gs)
return true;
}
void Spin::initMonitorInfo()
{
for (int i = 0; i < m_num_monitors; i++)
{
m_monitor_info[i].direction = getRandomDirection();
glGetFloatv(GL_MODELVIEW_MATRIX, &m_monitor_info[i].rotation[0]);
m_monitor_info[i].switch_time = getRandomSwitchTime();
m_monitor_info[i].last_switch_ticks = 0;
}
}
int Spin::getRandomDirection()
{
int direction = (int) (rand() / (double)RAND_MAX *
sizeof(directions) / sizeof(directions[0]));
if (direction >= sizeof(directions) / sizeof(directions[0]))
direction = 0;
return direction;
}
uint32_t Spin::getRandomSwitchTime()
{
return 3000u + (uint32_t) (rand() / (double)RAND_MAX * 3000.0);
}

5
modes/Spin.h
View File

@ -19,13 +19,16 @@ class Spin : public Mode
int direction;
float rotation[16];
int switch_time;
uint32_t last_switch_ticks;
} monitor_info_t;
protected:
LogoBox m_logobox;
int m_num_monitors;
monitor_info_t *m_monitor_info;
unsigned int m_last_switch_ticks;
unsigned int m_last_ticks;
void initMonitorInfo();
int getRandomDirection();
uint32_t getRandomSwitchTime();
};
#endif /* SPIN_H */