65 lines
2 KiB
C
65 lines
2 KiB
C
/* -*- mode:c; c-basic-offset: 8; indent-tabs-mode: nil; -*- */
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/* Tool to set the property _GNOME_SESSION_ACCELERATED on the root window */
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/*
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* Copyright (C) 2019 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author:
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* Bastien Nocera <hadess@hadess.net>
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* Matthias Clasen <mclasen@redhat.com>
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*/
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#include <gtk/gtk.h>
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#include <epoxy/gl.h>
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static char *
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get_gtk_gles_renderer (void)
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{
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GdkSurface *surface;
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GtkNative *native;
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GtkWidget *win;
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GdkGLContext *context;
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char *renderer = NULL;
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win = gtk_window_new ();
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gtk_widget_realize (win);
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native = gtk_widget_get_native (win);
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surface = gtk_native_get_surface (native);
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context = gdk_surface_create_gl_context (surface, NULL);
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if (!context)
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return NULL;
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gdk_gl_context_make_current (context);
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renderer = g_strdup ((char *) glGetString (GL_RENDERER));
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gdk_gl_context_clear_current ();
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g_object_unref (context);
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return renderer;
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}
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int
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main (int argc, char **argv)
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{
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g_autofree char *renderer_string = NULL;
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gtk_init ();
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renderer_string = get_gtk_gles_renderer ();
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if (renderer_string) {
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g_print ("%s", renderer_string);
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return 0;
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}
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return 1;
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}
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