static Bool
parse_keysym(const char *line, int n, char **name, KeySym *keysym)
{
*name = copy_to_scratch (line, n);
if (!strcmp(*name, "NoSymbol")) {
*keysym = NoSymbol;
return (True);
}
*keysym = XStringToKeysym (*name);
if (*keysym == NoSymbol && '0' <= **name && **name <= '9')
return parse_number(*name, keysym);
return (*keysym != NoSymbol);
}
void
HaloRefImage::draw_objects(CGELlist& drawn)
{
assert(_view);
GELlist objects;
for (int i=0; i < drawn.num(); i++ ) {
if (drawn[i]->is_3D())
if (drawn[i]->name()!="Skybox") // XXX - hack!!
objects+=drawn[i];
}
objects.sort(GL_VIEW::depth_compare);
// setup projection matrix
glMatrixMode(GL_PROJECTION); // GL_TRANSFORM_BIT
glPushMatrix();
glLoadMatrixd(_view->cam()->projection_xform().transpose().matrix());
// setup modelview matrix
glMatrixMode(GL_MODELVIEW); // GL_TRANSFORM_BIT
glPushMatrix();
Wtransf mat = _view->cam()->xform().transpose();
glLoadMatrixd(mat.matrix());
glEnable(GL_BLEND); // GL_ENABLE_BIT
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // GL_COLOR_BUFFER_BIT
//clear the aux0 buffer
if (use_fbos)
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, _fbo);
else
glDrawBuffer(GL_AUX0);
glClearColor(1.0,1.0,1.0,0.0);
glClear(GL_COLOR_BUFFER_BIT);
if (use_fbos)
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
if (get_kernel_size()>0) { //no need to do this if kernel size is zero
glReadBuffer(GL_BACK);
for(int i=0; i<objects.num(); i++) {
glDrawBuffer(GL_BACK);
//clear back buffer
glClearColor(1.0,1.0,1.0,0.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (objects[i]->can_do_halo()) {
_pass_color = Color::black;
objects[i]->draw_halo_ref();
//perform the blur in GLSL
copy_to_scratch();
_blur_filter->draw(_view);
//render the white version on top
//clear Z-buffer
glClear(GL_DEPTH_BUFFER_BIT);
}
glDisable(GL_BLEND);
_pass_color = Color::white; //white
objects[i]->draw_halo_ref();
//accumulate
copy_to_scratch();
glEnable(GL_BLEND);
if (use_fbos)
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, _fbo);
else
glDrawBuffer(GL_AUX0);
draw_scratch(); //composite into AUX0 buffer
if (use_fbos)
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
}
}
//at this point the combined image exists in GL_AUX0 buffer
//it is copied to texture from there instead of being copied to back buffer
// restore projection matrix
glMatrixMode(GL_PROJECTION);
glPopMatrix();
// restore modelview matrix
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
}
static void
do_pointer(char *line, int len)
{
int n;
int i;
unsigned long val;
union op *uop;
struct op_pointer *opp;
unsigned char buttons[MAXBUTTONCODES];
int nbuttons;
char *strval;
Bool ok;
if (len < 2 || !line || *line == '\0') { /* =1 minimum */
badmsg0 ("buttons input line");
return;
}
nbuttons = XGetPointerMapping (dpy, buttons, MAXBUTTONCODES);
n = skip_space (line, len);
line += n, len -= n;
if (line[0] != '=') {
badmsg0 ("buttons pointer code list, missing equal sign");
return;
}
line++, len--; /* skip = */
n = skip_space (line, len);
line += n, len -= n;
i = 0;
if (len < 7 || strncasecmp (line, "default", 7) != 0) {
while (len > 0) {
n = skip_space (line, len);
line += n, len -= n;
if (line[0] == '\0') break;
n = skip_word (line, len);
if (n < 1) {
badmsg ("skip of word in buttons line: %s", line);
return;
}
strval = copy_to_scratch(line, n);
ok = parse_number (strval, &val);
if (!ok || val >= MAXBUTTONCODES) {
badmsg ("value %s given for buttons list", strval);
return;
}
buttons[i++] = (unsigned char) val;
line += n, len -= n;
}
}
if (i > 0 && i != nbuttons) {
fprintf (stderr, "Warning: Only changing the first %d of %d buttons.\n",
i, nbuttons);
i = nbuttons;
}
uop = AllocStruct (union op);
if (!uop) {
badmsg ("attempt to allocate a %ld byte pointer opcode",
(long) sizeof (struct op_pointer));
return;
}
opp = &uop->pointer;
opp->type = doPointer;
opp->count = i;
for (i = 0; i < opp->count; i++) {
opp->button_codes[i] = buttons[i];
}
add_to_work_queue (uop);
}
