318 lines
11 KiB
C
318 lines
11 KiB
C
/* -*- mode:c; c-basic-offset: 8; indent-tabs-mode: nil; -*- */
|
|
/* Tool to set the property _GNOME_SESSION_ACCELERATED on the root window */
|
|
/*
|
|
* Copyright (C) 2011 Red Hat, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Author:
|
|
* Colin Walters <walters@verbum.org>
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <gtk/gtk.h>
|
|
#include <epoxy/gl.h>
|
|
#include <gdk/gdkx.h>
|
|
#include <X11/Xatom.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include "gnome-session-check-accelerated-common.h"
|
|
|
|
/* Wait up to this long for a running check to finish */
|
|
#define PROPERTY_CHANGE_TIMEOUT 5000
|
|
|
|
/* Values used for the _GNOME_SESSION_ACCELERATED root window property */
|
|
#define NO_ACCEL 0
|
|
#define HAVE_ACCEL 1
|
|
#define ACCEL_CHECK_RUNNING 2
|
|
|
|
static Atom is_accelerated_atom;
|
|
static Atom is_software_rendering_atom;
|
|
static Atom renderer_atom;
|
|
static gboolean property_changed;
|
|
|
|
static gboolean
|
|
on_property_notify_timeout (gpointer data)
|
|
{
|
|
gtk_main_quit ();
|
|
return FALSE;
|
|
}
|
|
|
|
static GdkFilterReturn
|
|
property_notify_filter (GdkXEvent *xevent,
|
|
GdkEvent *event,
|
|
gpointer data)
|
|
{
|
|
XPropertyEvent *ev = xevent;
|
|
|
|
if (ev->type == PropertyNotify && ev->atom == is_accelerated_atom) {
|
|
property_changed = TRUE;
|
|
gtk_main_quit ();
|
|
}
|
|
|
|
return GDK_FILTER_CONTINUE;
|
|
}
|
|
|
|
static gboolean
|
|
wait_for_property_notify (void)
|
|
{
|
|
GdkDisplay *display;
|
|
GdkScreen *screen;
|
|
GdkWindow *root;
|
|
Window rootwin;
|
|
|
|
property_changed = FALSE;
|
|
|
|
display = gdk_display_get_default ();
|
|
screen = gdk_display_get_default_screen (display);
|
|
root = gdk_screen_get_root_window (screen);
|
|
rootwin = gdk_x11_window_get_xid (root);
|
|
|
|
XSelectInput (GDK_DISPLAY_XDISPLAY (display), rootwin, PropertyChangeMask);
|
|
gdk_window_add_filter (root, property_notify_filter, NULL);
|
|
g_timeout_add (PROPERTY_CHANGE_TIMEOUT, on_property_notify_timeout, NULL);
|
|
|
|
gtk_main ();
|
|
|
|
return property_changed;
|
|
}
|
|
|
|
static char *
|
|
get_gtk_gles_renderer (GError **error)
|
|
{
|
|
GtkWidget *win;
|
|
GdkGLContext *context;
|
|
char *renderer = NULL;
|
|
|
|
win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
|
gtk_widget_realize (win);
|
|
context = gdk_window_create_gl_context (gtk_widget_get_window (win), error);
|
|
if (!context)
|
|
return NULL;
|
|
gdk_gl_context_make_current (context);
|
|
renderer = g_strdup ((char *) glGetString (GL_RENDERER));
|
|
gdk_gl_context_clear_current ();
|
|
g_object_unref (context);
|
|
|
|
return renderer;
|
|
}
|
|
|
|
static gboolean
|
|
is_discrete_gpu_check (void)
|
|
{
|
|
const char *dri_prime;
|
|
|
|
dri_prime = g_getenv ("DRI_PRIME");
|
|
if (!dri_prime)
|
|
return FALSE;
|
|
if (*dri_prime != '1')
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
GdkDisplay *display = NULL;
|
|
int estatus;
|
|
char *gl_helper_argv[] = { LIBEXECDIR "/gnome-session-check-accelerated-gl-helper", "--print-renderer", NULL };
|
|
char *gles_helper_argv[] = { LIBEXECDIR "/gnome-session-check-accelerated-gles-helper", "--print-renderer", NULL };
|
|
const char *renderer_string = NULL;
|
|
char *gl_renderer_string = NULL, *gles_renderer_string = NULL;
|
|
gboolean gl_software_rendering = FALSE, gles_software_rendering = FALSE;
|
|
Window rootwin;
|
|
glong is_accelerated, is_software_rendering;
|
|
GError *gl_error = NULL, *gles_error = NULL, *gtk_gles_error = NULL;
|
|
|
|
gtk_init (NULL, NULL);
|
|
|
|
/* gnome-session-check-accelerated gets run before X is started in the wayland
|
|
* case, and it currently requires X. Until we have that working, just always
|
|
* assume wayland will work.
|
|
* Also make sure that we don't read cached information about the first GPU
|
|
* when requesting information about the second.
|
|
*/
|
|
if (is_discrete_gpu_check () || g_strcmp0 (g_getenv ("XDG_SESSION_TYPE"), "x11") != 0) {
|
|
g_autofree char *discrete_renderer_string = get_gtk_gles_renderer (>k_gles_error);
|
|
if (discrete_renderer_string) {
|
|
g_print ("%s", discrete_renderer_string);
|
|
return 0;
|
|
}
|
|
if (gtk_gles_error != NULL) {
|
|
g_printerr ("gnome-session-check-accelerated: "
|
|
"Failed to get GTK GLES renderer: %s\n",
|
|
gtk_gles_error->message);
|
|
g_clear_error (>k_gles_error);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
display = gdk_display_get_default ();
|
|
/* when running on X11 with a nested wayland GDK will default to wayland
|
|
* so looking for X11 atoms will not work (and crash).
|
|
*/
|
|
if (!GDK_IS_X11_DISPLAY (display)) {
|
|
g_printerr ("gnome-session-check-accelerated: no X11 display found\n");
|
|
return 1;
|
|
}
|
|
|
|
rootwin = gdk_x11_get_default_root_xwindow ();
|
|
|
|
is_accelerated_atom = gdk_x11_get_xatom_by_name_for_display (display, "_GNOME_SESSION_ACCELERATED");
|
|
is_software_rendering_atom = gdk_x11_get_xatom_by_name_for_display (display, "_GNOME_IS_SOFTWARE_RENDERING");
|
|
renderer_atom = gdk_x11_get_xatom_by_name_for_display (display, "_GNOME_SESSION_RENDERER");
|
|
|
|
{
|
|
Atom type;
|
|
gint format;
|
|
gulong nitems;
|
|
gulong bytes_after;
|
|
guchar *data;
|
|
|
|
read:
|
|
gdk_x11_display_error_trap_push (display);
|
|
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), rootwin,
|
|
is_accelerated_atom,
|
|
0, G_MAXLONG, False, XA_CARDINAL, &type, &format, &nitems,
|
|
&bytes_after, &data);
|
|
gdk_x11_display_error_trap_pop_ignored (display);
|
|
|
|
if (type == XA_CARDINAL) {
|
|
glong *is_accelerated_ptr = (glong*) data;
|
|
|
|
if (*is_accelerated_ptr == ACCEL_CHECK_RUNNING) {
|
|
/* Test in progress, wait */
|
|
if (wait_for_property_notify ())
|
|
goto read;
|
|
/* else fall through and do the check ourselves */
|
|
|
|
} else {
|
|
gdk_x11_display_error_trap_push (display);
|
|
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), rootwin,
|
|
renderer_atom,
|
|
0, G_MAXLONG, False, XA_STRING, &type, &format, &nitems,
|
|
&bytes_after, &data);
|
|
gdk_x11_display_error_trap_pop_ignored (display);
|
|
|
|
if (type == XA_STRING) {
|
|
g_print ("%s", data);
|
|
}
|
|
|
|
return (*is_accelerated_ptr == 0 ? 1 : 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* We don't have the property or it's the wrong type.
|
|
* Try to compute it now.
|
|
*/
|
|
|
|
/* First indicate that a test is in progress */
|
|
is_accelerated = ACCEL_CHECK_RUNNING;
|
|
is_software_rendering = FALSE;
|
|
estatus = 1;
|
|
|
|
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
|
|
rootwin,
|
|
is_accelerated_atom,
|
|
XA_CARDINAL, 32, PropModeReplace, (guchar *) &is_accelerated, 1);
|
|
|
|
gdk_display_sync (display);
|
|
|
|
/* First, try the GL helper */
|
|
if (g_spawn_sync (NULL, (char **) gl_helper_argv, NULL, 0,
|
|
NULL, NULL, &gl_renderer_string, NULL, &estatus, &gl_error)) {
|
|
is_accelerated = (WEXITSTATUS(estatus) == HELPER_ACCEL);
|
|
gl_software_rendering = (WEXITSTATUS(estatus) == HELPER_SOFTWARE_RENDERING);
|
|
if (is_accelerated) {
|
|
renderer_string = gl_renderer_string;
|
|
goto finish;
|
|
}
|
|
|
|
g_printerr ("gnome-session-check-accelerated: GL Helper exited with code %d\n", estatus);
|
|
}
|
|
|
|
/* Then, try the GLES helper */
|
|
if (g_spawn_sync (NULL, (char **) gles_helper_argv, NULL, 0,
|
|
NULL, NULL, &gles_renderer_string, NULL, &estatus, &gles_error)) {
|
|
is_accelerated = (WEXITSTATUS(estatus) == HELPER_ACCEL);
|
|
gles_software_rendering = (WEXITSTATUS(estatus) == HELPER_SOFTWARE_RENDERING);
|
|
if (is_accelerated) {
|
|
renderer_string = gles_renderer_string;
|
|
goto finish;
|
|
}
|
|
|
|
g_printerr ("gnome-session-check-accelerated: GLES Helper exited with code %d\n", estatus);
|
|
}
|
|
|
|
/* If we got here, GL software rendering is our best bet */
|
|
if (gl_software_rendering || gles_software_rendering) {
|
|
is_software_rendering = TRUE;
|
|
is_accelerated = TRUE;
|
|
|
|
if (gl_software_rendering)
|
|
renderer_string = gl_renderer_string;
|
|
else if (gles_software_rendering)
|
|
renderer_string = gles_renderer_string;
|
|
|
|
goto finish;
|
|
}
|
|
|
|
/* Both helpers failed; print their error messages */
|
|
if (gl_error != NULL) {
|
|
g_printerr ("gnome-session-check-accelerated: Failed to run GL helper: %s\n", gl_error->message);
|
|
g_clear_error (&gl_error);
|
|
}
|
|
|
|
if (gles_error != NULL) {
|
|
g_printerr ("gnome-session-check-accelerated: Failed to run GLES helper: %s\n", gles_error->message);
|
|
g_clear_error (&gles_error);
|
|
}
|
|
|
|
finish:
|
|
if (is_accelerated) {
|
|
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
|
|
rootwin,
|
|
is_accelerated_atom,
|
|
XA_CARDINAL, 32, PropModeReplace, (guchar *) &is_accelerated, 1);
|
|
}
|
|
|
|
if (is_software_rendering) {
|
|
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
|
|
rootwin,
|
|
is_software_rendering_atom,
|
|
XA_CARDINAL, 32, PropModeReplace, (guchar *) &is_software_rendering, 1);
|
|
}
|
|
|
|
if (renderer_string != NULL) {
|
|
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
|
|
rootwin,
|
|
renderer_atom,
|
|
XA_STRING, 8, PropModeReplace, (guchar *) renderer_string, strlen (renderer_string));
|
|
|
|
/* Print the renderer */
|
|
g_print ("%s", renderer_string);
|
|
}
|
|
|
|
gdk_display_sync (display);
|
|
|
|
g_free (gl_renderer_string);
|
|
g_free (gles_renderer_string);
|
|
|
|
return is_accelerated ? 0 : 1;
|
|
}
|