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/* $XFree86: xc/programs/xf86dga/dga.c,v 3.19 2001/10/28 03:34:32 tsi Exp $ */
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xxf86dga.h>
#include <sys/time.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#define MINMAJOR 0
#define MINMINOR 0
/* copied from xf86Io.c */
static int
GetTimeInMillis(void)
{
struct timeval tp;
gettimeofday(&tp, NULL);
return(tp.tv_sec * 1000) + (tp.tv_usec / 1000);
}
int
main(int argc, char *argv[])
{
int MajorVersion, MinorVersion;
int EventBase, ErrorBase;
Display *dis;
int i, bpp;
char *addr;
int width, bank, banks, ram;
XEvent event;
Colormap cmap = 0;
Visual *vis;
int flags;
if (geteuid()) {
fprintf(stderr, "Must be suid root\n");
exit(1);
}
if ( (dis = XOpenDisplay(NULL)) == NULL )
{
(void) fprintf( stderr, " cannot connect to X server %s\n",
XDisplayName(NULL));
exit( -1 );
}
if (!XF86DGAQueryVersion(dis, &MajorVersion, &MinorVersion))
{
fprintf(stderr, "Unable to query video extension version\n");
exit(2);
}
if (!XF86DGAQueryExtension(dis, &EventBase, &ErrorBase)) {
fprintf(stderr, "Unable to query video extension information\n");
exit(2);
}
/* Fail if the extension version in the server is too old */
if (MajorVersion < MINMAJOR ||
(MajorVersion == MINMAJOR && MinorVersion < MINMINOR)) {
fprintf(stderr,
"Xserver is running an old XFree86-DGA version"
" (%d.%d)\n", MajorVersion, MinorVersion);
fprintf(stderr, "Minimum required version is %d.%d\n",
MINMAJOR, MINMINOR);
exit(2);
}
XF86DGAQueryDirectVideo(dis, DefaultScreen(dis), &flags);
if (!(flags & XF86DGADirectPresent)) {
fprintf(stderr, "Xserver driver doesn't support DirectVideo on screen %d\n", DefaultScreen(dis) );
exit(2);
}
XGrabKeyboard(dis, DefaultRootWindow(dis), True, GrabModeAsync,
GrabModeAsync, CurrentTime);
/* and all the mouse moves */
XGrabPointer(dis, DefaultRootWindow(dis), True,
PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
/* we want _our_ cmap */
vis = DefaultVisual(dis, DefaultScreen(dis));
bpp = DisplayPlanes (dis, DefaultScreen(dis));
if (bpp <= 8)
{
cmap = XCreateColormap(dis, DefaultRootWindow(dis), vis, AllocAll);
for (i = 0; i < 256; i++) {
XColor xcol;
xcol.pixel = i;
xcol.red = (256 - i) * 255;
xcol.green = i * 255;
xcol.blue = ((128 - i)%256) * 255;
xcol.flags = DoBlue | DoGreen | DoRed;
XStoreColor(dis, cmap, &xcol);
}
}
/*
* Lets go live
*/
XF86DGAGetVideo(dis, DefaultScreen(dis), &addr, &width, &bank, &ram);
fprintf(stderr, "%x addr:%p, width %d, bank size %d, depth %d planes\n", True,
addr, width, bank, bpp);
XF86DGADirectVideo(dis, DefaultScreen(dis),
XF86DGADirectGraphics|
XF86DGADirectMouse|
XF86DGADirectKeyb);
if (bpp <= 8)
{
/* must be called _after_ entering DGA DirectGraphics mode */
XF86DGAInstallColormap(dis, DefaultScreen(dis), cmap);
}
#ifndef __UNIXOS2__
/* Give up root privs */
if (setuid(getuid()) == -1) {
fprintf(stderr, "Unable to change uid: %s\n", strerror(errno));
exit(2);
}
#endif
XF86DGASetViewPort(dis, DefaultScreen(dis), 0, 0);
banks = (ram * 1024)/bank;
#ifdef DEBUG
fprintf(stderr, "%x ram:%x, addr %x, banks %d\n", True,
ram, addr, banks);
#endif
while (1) {
XMotionEvent *mevent = (XMotionEvent *) &event;
XButtonEvent *bevent = (XButtonEvent *) &event;
int n_chars = 0;
char buf[21];
KeySym ks = 0;
i = 0;
XNextEvent(dis, &event);
switch (event.type) {
case KeyPress:
n_chars = XLookupString(&event.xkey, buf, 20, &ks, NULL);
buf[n_chars] = '\0';
fprintf(stderr,"KeyPress [%d]: %s\n", event.xkey.keycode, buf);
if (buf[0] == 'b') {
/*
* Benchmark mode: run write/read speed test for 1 second each
*/
int start_clock,finish_clock,diff_clock;
int cycles;
int size = 64;
void *membuf;
if (bank < 65536)
size = bank / 1024;
/* get write timings */
XF86DGASetVidPage(dis, DefaultScreen(dis), i);
start_clock = GetTimeInMillis(); finish_clock = start_clock;
cycles=0;
while ((finish_clock - start_clock) < 1000)
{
cycles++;
memset(addr, (char) (cycles % 255), size * 1024);
finish_clock = GetTimeInMillis();
}
diff_clock = finish_clock - start_clock;
fprintf(stderr, "Framebuffer write speed: %6dK/s\n",
(size * 1000 * cycles) / diff_clock);
/* get read timings */
if ((membuf=malloc(size*1024)))
{
XF86DGASetVidPage(dis, DefaultScreen(dis), i);
start_clock = GetTimeInMillis(); finish_clock = start_clock;
cycles=0;
while ((finish_clock - start_clock) < 1000)
{
cycles++;
memcpy(membuf, addr, size * 1024);
finish_clock = GetTimeInMillis();
}
diff_clock = finish_clock - start_clock;
fprintf(stderr, "Framebuffer read speed: %6dK/s\n",
(size * 1000 * cycles) / diff_clock);
}
else
fprintf(stderr, "could not allocate scratch buffer -- read timing measurement skipped\n");
}
for (i = 0; i < banks; i++) {
XF86DGASetVidPage(dis, DefaultScreen(dis), i);
memset(addr, buf[0], bank);
#ifdef DEBUG
fprintf(stderr, "XF86DGASetVidPage(dis, DefaultScreen(dis), %d);\n",i);
fprintf(stderr, "memset(addr:%x, buf[0]:%d, bank:%d);\n",addr,buf[0],bank);
#endif
}
break;
case KeyRelease:
n_chars = XLookupString(&event.xkey, buf, 20, &ks, NULL);
buf[n_chars] = '\0';
fprintf(stderr,"KeyRelease[%d]: %s\n", event.xkey.keycode, buf);
break;
case MotionNotify:
fprintf(stderr,"Relative Motion: %d %d\n", mevent->x_root, mevent->y_root);
break;
case ButtonPress:
fprintf(stderr,"Button %d pressed\n", bevent->button);
break;
case ButtonRelease:
fprintf(stderr,"Button %d released\n", bevent->button);
break;
case Expose:
/* maybe we should RaiseWindow? */
break;
default:
fprintf(stderr,"%X\n", event.type);
break;
}
if (n_chars && (buf[0] == 'q' || buf[0] == 'Q')) {
fprintf(stderr,"EXITTING\n");
break;
}
}
/*
* back to the X server
*/
XF86DGADirectVideo(dis, DefaultScreen(dis), 0);
fprintf(stderr, "back now in X\n");
/* and give back control */
XUngrabPointer(dis, CurrentTime);
XUngrabKeyboard(dis, CurrentTime);
fprintf(stderr, "Thats all folks\n");
exit(0);
}
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