140 lines
2.9 KiB
C
140 lines
2.9 KiB
C
#include <math.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
#include <X11/keysym.h>
|
|
|
|
#include <GL/glx.h>
|
|
#include <GL/gl.h>
|
|
#include "ui.h"
|
|
|
|
|
|
#ifndef M_PI
|
|
# define M_PI 3.14159265
|
|
#endif
|
|
|
|
static int attributeList[] = { GLX_RGBA, GLX_DOUBLEBUFFER, None };
|
|
|
|
static Bool WaitForNotify(Display *d, XEvent *e, char *arg)
|
|
{
|
|
return (e->type == MapNotify) && (e->xmap.window == (Window)arg);
|
|
}
|
|
|
|
Display *dpy;
|
|
Window win;
|
|
|
|
void tkSwapBuffers(void)
|
|
{
|
|
glXSwapBuffers(dpy,win);
|
|
}
|
|
|
|
int ui_loop(int argc, char **argv, const char *name)
|
|
{
|
|
XVisualInfo *vi;
|
|
Colormap cmap;
|
|
XSetWindowAttributes swa;
|
|
XSizeHints hint;
|
|
GLXContext cx;
|
|
XEvent event;
|
|
int k, width, height;
|
|
char buf[80];
|
|
XEvent xev;
|
|
KeySym keysym;
|
|
XComposeStatus status;
|
|
|
|
/* get a connection */
|
|
dpy = XOpenDisplay(NULL);
|
|
if (dpy == NULL) {
|
|
fprintf(stderr,"Could not open X display\n");
|
|
exit(1);
|
|
}
|
|
|
|
/* get an appropriate visual */
|
|
vi = glXChooseVisual(dpy, DefaultScreen(dpy), attributeList);
|
|
if (vi == NULL) {
|
|
fprintf(stderr, "No suitable visual for glx\n");
|
|
exit(1);
|
|
}
|
|
|
|
/* create a GLX context */
|
|
cx = glXCreateContext(dpy, vi, 0, GL_TRUE);
|
|
|
|
/* create a color map */
|
|
cmap = XCreateColormap(dpy, RootWindow(dpy, vi->screen),
|
|
vi->visual, AllocNone);
|
|
|
|
/* create a window */
|
|
width = 400;
|
|
height = 300;
|
|
hint.x = 0;
|
|
hint.y = 0;
|
|
hint.width = width;
|
|
hint.height = height;
|
|
hint.flags = PPosition | PSize;
|
|
swa.colormap = cmap;
|
|
swa.border_pixel = 0;
|
|
swa.event_mask = StructureNotifyMask;
|
|
win = XCreateWindow(dpy, RootWindow(dpy, vi->screen), 0, 0, width, height,
|
|
0, vi->depth, InputOutput, vi->visual,
|
|
CWBorderPixel|CWColormap|CWEventMask, &swa);
|
|
XSetStandardProperties (dpy, win, name, name, None, NULL, 0, &hint);
|
|
|
|
XMapWindow(dpy, win);
|
|
XIfEvent(dpy, &event, WaitForNotify, (char*)win);
|
|
XSelectInput(dpy, win, KeyPressMask | StructureNotifyMask | ExposureMask);
|
|
|
|
/* connect the context to the window */
|
|
glXMakeCurrent(dpy, win, cx);
|
|
|
|
init();
|
|
reshape(width, height);
|
|
|
|
while (1) {
|
|
if (XPending(dpy) > 0) {
|
|
XNextEvent(dpy,&xev);
|
|
switch(xev.type) {
|
|
case KeyPress:
|
|
XLookupString((XKeyEvent *)&xev,buf,80,&keysym,&status);
|
|
switch(keysym) {
|
|
case XK_Up:
|
|
k = KEY_UP;
|
|
break;
|
|
case XK_Down:
|
|
k = KEY_DOWN;
|
|
break;
|
|
case XK_Left:
|
|
k = KEY_LEFT;
|
|
break;
|
|
case XK_Right:
|
|
k = KEY_RIGHT;
|
|
break;
|
|
case XK_Escape:
|
|
k = KEY_ESCAPE;
|
|
break;
|
|
default:
|
|
k = keysym;
|
|
}
|
|
key(k, 0);
|
|
break;
|
|
case ConfigureNotify:
|
|
{
|
|
int width,height;
|
|
width = xev.xconfigure.width;
|
|
height = xev.xconfigure.height;
|
|
glXWaitX();
|
|
reshape(width, height);
|
|
}
|
|
break;
|
|
}
|
|
} else {
|
|
idle();
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|