void paint_bar(Stimulus *st, Substim *sst, int mode)
{
Locator *pos = &sst->pos;
int i,ci,w,h;
float x[2],z[2],vcolor[3],*xc,*yc,*cc,*rc,cval;
float angle,val;
val = (st->background) * (1+ pos->contrast);
if(pos->contrast > 2)
val = 1.0;
else if (st->background == 0)
val = pos->contrast;
cval = dogamma(val);
vcolor[0] = vcolor[1] = vcolor[2] = cval;
glPushMatrix();
glTranslatef((pos->xy[0]),pos->xy[1],0);
angle = (float) (pos->angle * 180.0/M_PI);
glRotatef(angle,0,0,1);
if(mode == LEFTMODE)
{
rc = cc = &vcolor[0];
}
else if(mode == RIGHTMODE)
{
cc = &vcolor[1];
rc = &vcolor[2];
}
val = pos->phase;
while(val > (2 * M_PI))
val -= (M_PI * 2);
/*
* for bars, pos->f determines the width of the bar, while
* pos->radius[1] determines the field over which the bar moves
*/
h = pos->radius[0];
w = deg2pix(1/(2*st->f));
z[0] = (-pos->radius[0]);
/*
* if SQUARE, have constant velocity sweeps in one direction. Sign reversal
* is so that direction matches sines/rds
*/
if(st->flag & STIMULUS_IS_SQUARE)
z[1] = -w/2 - ((pos->radius[1]) * (val/M_PI -1));
else
z[1] = ((pos->radius[1]) * cos(val)) - w/2;
glBegin(GL_POLYGON);
mycolor(vcolor);
x[0] = z[0];
x[1] = z[1];
myvx(x);
x[1] = z[1] + w;
myvx(x);
x[0] = z[0] +2 * pos->radius[0];
myvx(x);
x[1] = z[1];
myvx(x);
glEnd();
if(optionflag & ANTIALIAS_BIT)
{
glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
glLineWidth(1.0);
glEnable(GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_LINE_SMOOTH);
glBegin(GL_POLYGON);
mycolor(vcolor);
x[0] = z[0];
x[1] = z[1];
myvx(x);
x[1] = z[1] + w;
myvx(x);
x[0] = z[0] +2 * pos->radius[0];
myvx(x);
x[1] = z[1];
myvx(x);
glEnd();
glDisable(GL_BLEND);
glDisable(GL_LINE_SMOOTH);
glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
}
glPopMatrix();
for(i = 0; i < sst->nbars; i++){
glPushMatrix();
glTranslatef(sst->xpos[i],sst->ypos[i],0);
angle = (float) (sst->imb[i] * 180.0/M_PI);
glRotatef(angle,0,0,1);
glBegin(GL_POLYGON);
mycolor(vcolor);
x[0] = z[0];
x[1] = z[1];
myvx(x);
x[1] = z[1] + w;
myvx(x);
x[0] = z[0] +2 * pos->radius[0];
myvx(x);
x[1] = z[1];
myvx(x);
glEnd();
glPopMatrix();
if(debug){
glFlushRenderAPPLE();
glSwapAPPLE();
}
}
}
void QOgreRenderSystem::flush()
{
#if GSAGE_PLATFORM == GSAGE_APPLE
glFlushRenderAPPLE();
#endif
}