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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef __linux__
#include <X11/keysym.h>
#endif
#include "main/demohandler.h"
#include "opengl/glwindow.h"
#include "../exception.h"
#include "../demolib_prefs.h"
#if DEMOLIB_MAINLOOP
DemoHandler::DemoHandler(MainLoop *ml, const char *title, const char *elem, Hashtable *attr) :
Event(ml, title, elem, attr, NULL)
{
this->ml = ml;
this->layer = -1000.0f;
bool fullscreen = attr->get_bool("fullscreen");
/*
* It's extremely important that this comes HERE and not in
* start_effect()! Otherwise, other constructors doing OpenGL
* commands (textures, for instance) would fail and mess
* everything up quite badly...
*/
int xres = attr->get_int("xres");
int yres = attr->get_int("yres");
if (attr->exists("visual_id")) {
this->win = new GLWindow(this->title, xres, yres, -1,
fullscreen, -1, attr->get_int("visual_id"));
return;
}
int bpp = attr->get_int("depth");
int zbpp = attr->get_int("zbuffer");
this->win = new GLWindow(this->title, xres, yres, bpp,
fullscreen, zbpp, -1);
}
DemoHandler::~DemoHandler()
{
delete this->win;
this->win = NULL;
}
void DemoHandler::start_effect()
{
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glShadeModel(GL_SMOOTH);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
glDepthFunc(GL_LESS);
while (this->active) {
#ifdef __linux__
/*
* Linux doesn't use a message queue like Win32, so we'll
* handle X events here :-)
*/
while (XPending(this->win->dpy) > 0) {
XEvent event;
XNextEvent(this->win->dpy, &event);
switch (event.type) {
case ConfigureNotify:
if ((event.xconfigure.width != (signed int)this->win->width) ||
(event.xconfigure.height != (signed int)this->win->height)) {
this->win->width = event.xconfigure.width;
this->win->height = event.xconfigure.height;
this->win->resize(0, 0, this->win->width, this->win->height);
}
break;
case ButtonPress:
this->win->done = true;
break;
case KeyPress:
if (XLookupKeysym(&event.xkey, 0) == XK_Escape) {
this->win->done = true;
}
break;
}
}
#endif
this->ml->run(false);
this->win->flip();
if (this->win->is_done()) {
this->end_effect();
}
}
}
void DemoHandler::draw_scene(float progress)
{
}
void DemoHandler::end_effect()
{
this->active = false;
/* end everything, MainLoop will clean it up */
for (int i = 0; i < this->ml->num_events; i++) {
Event *e = this->ml->events[i];
if (e && e->active && e != this) {
#if !DEMOLIB_SILENT
printf("Exiting: %s\n", e->title);
#endif
e->end_effect();
e->active = false;
}
}
}
#endif
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