add glx-dbl-bare, in progress

This commit is contained in:
Josh Holtrop 2011-04-12 08:53:11 -04:00
parent 380228f58f
commit 76484f84e4
2 changed files with 58 additions and 0 deletions

8
glx-dbl-bare/Makefile Normal file
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TARGET := glx-dbl-bare
LDFLAGS := -lGL -lX11
all: $(TARGET)
clean:
-rm -f *.o $(TARGET)

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#include <GL/glx.h>
#include <GL/gl.h>
#include <unistd.h>
static int attributeList[] = { GLX_RGBA, None };
static Bool WaitForNotify(Display *d, XEvent *e, char *arg)
{
return (e->type == MapNotify) && (e->xmap.window == (Window)arg);
}
int main(int argc, char **argv)
{
Display *dpy;
XVisualInfo *vi;
Colormap cmap;
XSetWindowAttributes swa;
Window win;
GLXContext cx;
XEvent event;
/* get a connection */
dpy = XOpenDisplay(0);
/* get an appropriate visual */
vi = glXChooseVisual(dpy, DefaultScreen(dpy), attributeList);
/* create a GLX context */
cx = glXCreateContext(dpy, vi, 0, GL_FALSE);
/* create a color map */
cmap = XCreateColormap(dpy, RootWindow(dpy, vi->screen),
vi->visual, AllocNone);
/* create a window */
swa.colormap = cmap;
swa.border_pixel = 0;
swa.event_mask = StructureNotifyMask;
win = XCreateWindow(dpy, RootWindow(dpy, vi->screen), 0, 0, 100, 100,
0, vi->depth, InputOutput, vi->visual,
CWBorderPixel|CWColormap|CWEventMask, &swa);
XMapWindow(dpy, win);
XIfEvent(dpy, &event, WaitForNotify, (char*)win);
/* connect the context to the window */
glXMakeCurrent(dpy, win, cx);
/* clear the buffer */
glClearColor(1,1,0,1);
glClear(GL_COLOR_BUFFER_BIT);
glFlush();
/* wait a while */
sleep(10);
}