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authorOwen W. Taylor <otaylor@fishsoup.net>2014-04-27 00:14:12 -0400
committerOwen W. Taylor <otaylor@fishsoup.net>2014-07-17 19:13:47 -0400
commitddca0591a646afc37242b62e06ed9858f577799e (patch)
tree4f129552a72c2f65fd326f8cfd1564c1e46e30fe
parentd76f9d1f195dc5fe03c70c7c4c608cf57657a995 (diff)
downloadcogl-ddca0591a646afc37242b62e06ed9858f577799e.tar.gz
examples/cogl-x11-tfp: Add a --gears option to run glxgears
If --gears is passed on the command line, glxgears is run, and is used for the source window rather than drawing solid rectangles into a window we create outselves. Reviewed-by: Robert Bragg <robert.bragg@intel.com>
-rw-r--r--examples/cogl-x11-tfp.c177
1 files changed, 151 insertions, 26 deletions
diff --git a/examples/cogl-x11-tfp.c b/examples/cogl-x11-tfp.c
index c63fa2ea..5f364fcc 100644
--- a/examples/cogl-x11-tfp.c
+++ b/examples/cogl-x11-tfp.c
@@ -3,9 +3,14 @@
#include <cogl/winsys/cogl-texture-pixmap-x11.h>
#include <glib.h>
#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
+#include <X11/Xatom.h>
#include <X11/extensions/Xcomposite.h>
@@ -19,6 +24,84 @@
#define TFP_XWIN_WIDTH 200
#define TFP_XWIN_HEIGHT 200
+static pid_t gears_pid = 0;
+
+static void
+spawn_gears (void)
+{
+ pid_t pid = fork();
+
+ if (pid == 0)
+ execlp ("glxgears", "glxgears",
+ NULL);
+
+ gears_pid = pid;
+}
+
+static XID
+find_gears_toplevel (Display *xdpy,
+ Window window)
+{
+ Atom window_state = XInternAtom (xdpy, "WM_STATE", False);
+ Atom type;
+ int format;
+ unsigned long n_items;
+ unsigned long bytes_after;
+ unsigned char *data;
+ CoglBool result = FALSE;
+
+ if (window == None)
+ window = DefaultRootWindow (xdpy);
+
+ XGetWindowProperty (xdpy, window, window_state,
+ 0, G_MAXLONG, False, window_state,
+ &type, &format, &n_items, &bytes_after, &data);
+
+ if (type == window_state)
+ {
+ XFree (data);
+
+ XGetWindowProperty (xdpy, window, XA_WM_NAME,
+ 0, G_MAXLONG, False, XA_STRING,
+ &type, &format, &n_items, &bytes_after, &data);
+
+ if (type == XA_STRING)
+ {
+ if (format == 8 && strcmp ((char *)data, "glxgears") == 0)
+ result = window;
+
+ XFree (data);
+ }
+ }
+ else
+ {
+ Window root, parent;
+ Window *children;
+ unsigned int n_children;
+ unsigned int i;
+
+ XQueryTree (xdpy, window,
+ &root, &parent, &children, &n_children);
+
+ for (i = 0; i < n_children; i++)
+ {
+ result = find_gears_toplevel (xdpy, children[i]);
+ if (result != None)
+ break;
+ }
+
+ XFree (children);
+ }
+
+ return result;
+}
+
+static void
+kill_gears (void)
+{
+ kill (gears_pid, SIGTERM);
+}
+
static void
update_cogl_x11_event_mask (CoglOnscreen *onscreen,
uint32_t event_mask,
@@ -58,10 +141,24 @@ main (int argc, char **argv)
Atom atom_wm_protocols;
Atom atom_wm_delete_window;
int screen;
- Window tfp_xwin;
+ CoglBool gears = FALSE;
+ Window tfp_xwin = None;
Pixmap pixmap;
CoglTexturePixmapX11 *tfp;
- GC gc;
+ CoglTexture *right_texture;
+ GC gc = None;
+ int i;
+
+ for (i = 1; i < argc; i++)
+ {
+ if (strcmp (argv[i], "--gears") == 0)
+ gears = TRUE;
+ else
+ {
+ g_printerr ("Usage: cogl-x11-tfp [--gears]\n");
+ return 1;
+ }
+ }
g_print ("NB: Don't use this example as a benchmark since there is "
"no synchonization between X window updates and onscreen "
@@ -88,6 +185,19 @@ main (int argc, char **argv)
}
}
+ if (gears)
+ {
+ spawn_gears ();
+ while (TRUE)
+ {
+ tfp_xwin = find_gears_toplevel (xdpy, None);
+ if (tfp_xwin != None)
+ break;
+
+ g_usleep (10000);
+ }
+ }
+
/* Choose a means to render... */
renderer = cogl_renderer_new ();
cogl_xlib_renderer_set_foreign_display (renderer, xdpy);
@@ -165,27 +275,37 @@ main (int argc, char **argv)
xdpy);
XMapWindow (xdpy, xwin);
-
- XCompositeRedirectSubwindows (xdpy, xwin, CompositeRedirectManual);
+ cogl_onscreen_show (onscreen);
screen = DefaultScreen (xdpy);
- tfp_xwin = XCreateSimpleWindow (xdpy, xwin,
- 0, 0, TFP_XWIN_WIDTH, TFP_XWIN_HEIGHT,
- 0,
- WhitePixel (xdpy, screen),
- WhitePixel (xdpy, screen));
- XMapWindow (xdpy, tfp_xwin);
- gc = XCreateGC (xdpy, tfp_xwin, 0, NULL);
-
- while (TRUE)
+ if (gears)
+ {
+ XCompositeRedirectWindow (xdpy, tfp_xwin, CompositeRedirectAutomatic);
+ }
+ else
{
XEvent xev;
- XWindowEvent (xdpy, xwin, StructureNotifyMask, &xev);
+ XCompositeRedirectSubwindows (xdpy, xwin, CompositeRedirectManual);
+
+ tfp_xwin = XCreateSimpleWindow (xdpy, xwin,
+ 0, 0, TFP_XWIN_WIDTH, TFP_XWIN_HEIGHT,
+ 0,
+ WhitePixel (xdpy, screen),
+ WhitePixel (xdpy, screen));
+
+ XMapWindow (xdpy, tfp_xwin);
- if (xev.xany.type == MapNotify)
- break;
+ while (TRUE)
+ {
+ XWindowEvent (xdpy, xwin, StructureNotifyMask, &xev);
+
+ if (xev.xany.type == MapNotify)
+ break;
+ }
+
+ gc = XCreateGC (xdpy, tfp_xwin, 0, NULL);
}
pixmap = XCompositeNameWindowPixmap (xdpy, tfp_xwin);
@@ -215,25 +335,28 @@ main (int argc, char **argv)
case KeyRelease:
keysym = XLookupKeysym (&event.xkey, 0);
if (keysym == XK_q || keysym == XK_Q || keysym == XK_Escape)
- return 0;
+ goto out;
break;
case ClientMessage:
if (event.xclient.message_type == atom_wm_protocols &&
event.xclient.data.l[0] == atom_wm_delete_window)
- return 0;
+ goto out;
break;
}
cogl_xlib_renderer_handle_event (renderer, &event);
}
- pixel =
- g_random_int_range (0, 255) << 24 |
- g_random_int_range (0, 255) << 16 |
- g_random_int_range (0, 255) << 8;
- g_random_int_range (0, 255);
- XSetForeground (xdpy, gc, pixel);
- XFillRectangle (xdpy, tfp_xwin, gc, 0, 0, TFP_XWIN_WIDTH, TFP_XWIN_HEIGHT);
- XFlush (xdpy);
+ if (!gears)
+ {
+ pixel =
+ g_random_int_range (0, 255) << 24 |
+ g_random_int_range (0, 255) << 16 |
+ g_random_int_range (0, 255) << 8;
+ g_random_int_range (0, 255);
+ XSetForeground (xdpy, gc, pixel);
+ XFillRectangle (xdpy, tfp_xwin, gc, 0, 0, TFP_XWIN_WIDTH, TFP_XWIN_HEIGHT);
+ XFlush (xdpy);
+ }
cogl_framebuffer_clear4f (fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
pipeline = cogl_pipeline_new (ctx);
@@ -243,5 +366,7 @@ main (int argc, char **argv)
cogl_onscreen_swap_buffers (onscreen);
}
+ out:
+ kill_gears ();
return 0;
}