1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74
|
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include <X11/Xlib.h>
#include <GL/glx.h>
static Display *dpy = 0;
static Window win;
static XVisualInfo *vi;
static GLXContext cx;
MODULE = OpenGL::XScreenSaver PACKAGE = OpenGL::XScreenSaver
PROTOTYPES: DISABLE
int
xss_connect()
CODE:
if (!dpy)
dpy = XOpenDisplay(0);
if (!dpy) {
XSRETURN_NO;
} else {
XSRETURN_YES;
}
int
xss_init_gl(wid)
int wid
CODE:
win = wid;
vi = glXChooseVisual(dpy, DefaultScreen(dpy), (int[]){ GLX_RGBA, GLX_DOUBLEBUFFER, None });
cx = glXCreateContext(dpy, vi, 0, GL_TRUE);
if (!win) {
win = XCreateSimpleWindow(dpy, RootWindow(dpy, vi->screen), 0, 0, 640, 480, 0, 0, 0);
XMapWindow(dpy, win);
}
glXMakeCurrent(dpy, win, cx);
XSRETURN_YES;
void
xss_update_frame()
CODE:
glXSwapBuffers(dpy, win);
void
xss_update_viewport()
CODE:
XWindowAttributes xwa;
XGetWindowAttributes(dpy, win, &xwa);
glXMakeCurrent(dpy, win, cx);
glViewport(0, 0, xwa.width, xwa.height);
int
xss_root_window()
CODE:
RETVAL = DefaultRootWindow(dpy);
OUTPUT:
RETVAL
void
xss_viewport_dimensions()
PPCODE:
XWindowAttributes xwa;
XGetWindowAttributes(dpy, win, &xwa);
XPUSHs(sv_2mortal(newSVnv(xwa.width)));
XPUSHs(sv_2mortal(newSVnv(xwa.height)));
|