# define HACK_INIT init_screensaver
# define HACK_DRAW draw_screensaver
# define HACK_RESHAPE reshape_screensaver
+# define HACK_HANDLE_EVENT screensaver_handle_event
+# define EVENT_MASK PointerMotionMask
# define screensaver_opts xlockmore_opts
#define DEFAULTS "*delay: 10000 \n" \
"*showFPS: False \n" \
#define countof(x) (sizeof((x))/sizeof((*x)))
#include "xpm-ximage.h"
+#include "rotator.h"
#define checkImageWidth 64
#define checkImageHeight 64
typedef struct {
int screen_width, screen_height;
GLXContext *glx_context;
+ rotator *rot;
+ Bool button_down_p;
+ int mouse_x, mouse_y;
Window window;
XColor fg, bg;
} screensaverstruct;
static GLfloat lightTwoColor[] = {0.99, 0.99, 0.99, 1.0};
float rot_x=0, rot_y=0, rot_z=0;
-static float dx=0, dy=0, dz=0;
-static float ddx=0, ddy=0, ddz=0;
-static float d_max = 0;
-static int screensaver_number;
+float lastx=0, lasty=0;
static float max_lastx=300, max_lasty=400;
static float min_lastx=-400, min_lasty=-400;
-static float d_lastx=0, d_lasty=0;
-static float dd_lastx=0, dd_lasty=0;
-static float max_dlastx=0, max_dlasty=0;
-float lastx=0, lasty=0;
+
+static int screensaver_number;
struct functions {
void (*InitStuff)(void);
}
-/* mostly lifted from lament.c */
-static void
-rotate (float *pos, float *v, float *dv, float max_v)
-{
- double ppos = *pos;
-
- /* tick position */
- if (ppos < 0)
- ppos = -(ppos + *v);
- else
- ppos += *v;
-
- if (ppos > 360)
- ppos -= 360;
- else if (ppos < 0)
- ppos += 360;
-
- if (ppos < 0) abort();
- if (ppos > 360) abort();
- *pos = (*pos > 0 ? ppos : -ppos);
-
- /* accelerate */
- *v += *dv;
-
- /* clamp velocity */
- if (*v > max_v || *v < -max_v)
- {
- *dv = -*dv;
- }
- /* If it stops, start it going in the other direction. */
- else if (*v < 0)
- {
- if (random() % 4)
- {
- *v = 0;
-
- /* keep going in the same direction */
- if (random() % 2)
- *dv = 0;
- else if (*dv < 0)
- *dv = -*dv;
- }
- else
- {
- /* reverse gears */
- *v = -*v;
- *dv = -*dv;
- *pos = -*pos;
- }
- }
-
- /* Alter direction of rotational acceleration randomly. */
- if (! (random() % 120))
- *dv = -*dv;
-
- /* Change acceleration very occasionally. */
- if (! (random() % 200))
- {
- if (*dv == 0)
- *dv = 0.00001;
- else if (random() & 1)
- *dv *= 1.2;
- else
- *dv *= 0.8;
- }
-}
-
-
-static void
-bounce (float *pos, float *v, float *dv, float max_v)
-{
- *pos += *v;
-
- if (*pos > 1.0)
- *pos = 1.0, *v = -*v, *dv = -*dv;
- else if (*pos < 0)
- *pos = 0, *v = -*v, *dv = -*dv;
-
- if (*pos < 0.0) abort();
- if (*pos > 1.0) abort();
-
- /* accelerate */
- *v += *dv;
-
- /* clamp velocity */
- if (*v > max_v || *v < -max_v)
- {
- *dv = -*dv;
- }
-
- /* Alter direction of rotational acceleration randomly. */
- if (! (random() % 120))
- *dv = -*dv;
-
- /* Change acceleration very occasionally. */
- if (! (random() % 200))
- {
- if (*dv == 0)
- *dv = 0.00001;
- else if (random() & 1)
- *dv *= 1.2;
- else
- *dv *= 0.8;
- }
-}
-
-
static void
-init_rotation (void)
+init_rotation (ModeInfo *mi)
{
- rot_x = (float) (random() % (360 * 2)) - 360; /* -360 - 360 */
- rot_y = (float) (random() % (360 * 2)) - 360;
- rot_z = (float) (random() % (360 * 2)) - 360;
-
- /* bell curve from 0-1.5 degrees, avg 0.75 */
- dx = (frand(1) + frand(1) + frand(1)) / 2.0;
- dy = (frand(1) + frand(1) + frand(1)) / 2.0;
- dz = (frand(1) + frand(1) + frand(1)) / 2.0;
-
- d_max = dx * 2;
-
- ddx = 0.004;
- ddy = 0.004;
- ddz = 0.004;
+ screensaverstruct *gp = &Screensaver[MI_SCREEN(mi)];
+ double spin_speed = 1.0;
+ gp->rot = make_rotator (spin_speed, spin_speed, spin_speed, 1.0, 0.0, True);
lastx = (random() % (int) (max_lastx - min_lastx)) + min_lastx;
lasty = (random() % (int) (max_lasty - min_lasty)) + min_lasty;
- d_lastx = (frand(1) + frand(1) + frand(1));
- d_lasty = (frand(1) + frand(1) + frand(1));
- max_dlastx = d_lastx * 2;
- max_dlasty = d_lasty * 2;
- dd_lastx = 0.004;
- dd_lasty = 0.004;
}
Display *display = MI_DISPLAY(mi);
Window window = MI_WINDOW(mi);
- Window root, child;
- int rootx, rooty, winx, winy;
- unsigned int mask;
- XEvent event;
-
if (!gp->glx_context)
return;
funcs_ptr[screensaver_number].DrawStuff();
- rotate(&rot_x, &dx, &ddx, d_max);
- rotate(&rot_y, &dy, &ddy, d_max);
- rotate(&rot_z, &dz, &ddz, d_max);
-
- /* swallow any ButtonPress events */
- while (XCheckMaskEvent (MI_DISPLAY(mi), ButtonPressMask, &event))
- ;
- /* check the pointer position and button state. */
- XQueryPointer (MI_DISPLAY(mi), MI_WINDOW(mi),
- &root, &child, &rootx, &rooty, &winx, &winy, &mask);
-
/* track the mouse only if a button is down. */
- if (mask & (Button1Mask|Button2Mask|Button3Mask|Button4Mask|Button5Mask))
+ if (gp->button_down_p)
{
- lastx = winx;
- lasty = winy;
+ lastx = gp->mouse_x;
+ lasty = gp->mouse_y;
}
else
{
float scale = (max_lastx - min_lastx);
- lastx -= min_lastx;
- lasty -= min_lasty;
- lastx /= scale;
- lasty /= scale;
- d_lastx /= scale;
- d_lasty /= scale;
- dd_lastx /= scale;
- dd_lasty /= scale;
- bounce(&lastx, &d_lastx, &dd_lastx, max_dlastx);
- bounce(&lasty, &d_lasty, &dd_lasty, max_dlasty);
- lastx *= scale;
- lasty *= scale;
- lastx += min_lastx;
- lasty += min_lasty;
- d_lastx *= scale;
- d_lasty *= scale;
- dd_lastx *= scale;
- dd_lasty *= scale;
+ double x, y, z;
+ get_rotation (gp->rot, &x, &y, &z, True);
+ rot_x = x * 360;
+ rot_y = y * 360;
+ rot_z = z * 360;
+ lastx = x * scale + min_lastx;
+ lasty = y * scale + min_lasty;
}
if (mi->fps_p) do_fps (mi);
/* decide which screensaver example to run */
-static void chooseScreensaverExample(void) {
+static void chooseScreensaverExample(ModeInfo *mi)
+{
int i;
/* call the extrusion init routine */
fprintf(stderr,"\t%s\n", funcs_ptr[i].name);
exit(1);
}
- init_rotation();
+ init_rotation(mi);
funcs_ptr[screensaver_number].InitStuff();
}
glClearColor(0,0,0,0);
/* glCullFace(GL_BACK); */
/* glEnable(GL_CULL_FACE); */
+ glLightModeli (GL_LIGHT_MODEL_TWO_SIDE, TRUE);
glShadeModel(GL_SMOOTH);
if (do_light)
}
+Bool
+screensaver_handle_event (ModeInfo *mi, XEvent *event)
+{
+ screensaverstruct *gp = &Screensaver[MI_SCREEN(mi)];
+
+ if (event->xany.type == ButtonPress &&
+ event->xbutton.button & Button1)
+ {
+ gp->button_down_p = True;
+ gp->mouse_x = event->xbutton.x;
+ gp->mouse_y = event->xbutton.y;
+ return True;
+ }
+ else if (event->xany.type == ButtonRelease &&
+ event->xbutton.button & Button1)
+ {
+ gp->button_down_p = False;
+ return True;
+ }
+ else if (event->xany.type == MotionNotify)
+ {
+ gp->mouse_x = event->xmotion.x;
+ gp->mouse_y = event->xmotion.y;
+ return True;
+ }
+
+ return False;
+}
+
+
+
/* xscreensaver initialization routine */
void init_screensaver(ModeInfo * mi)
{
if ((gp->glx_context = init_GL(mi)) != NULL) {
reshape_screensaver(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
initializeGL(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
- chooseScreensaverExample();
+ chooseScreensaverExample(mi);
} else {
MI_CLEARWINDOW(mi);
}
projects / xscreensaver / blobdiff