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106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/* Clutter.
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* An OpenGL based 'interactive canvas' library.
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* Authored By Matthew Allum <mallum@openedhand.com>
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* Copyright (C) 2006-2007 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "clutter-x11.h"
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#include "clutter-stage-x11.h"
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#include "clutter-backend-x11.h"
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#include "clutter-stage-glx.h"
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#include "clutter-backend-glx.h"
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#include "clutter-private.h"
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#include "clutter-stage-private.h"
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#include <clutter/clutter-backend.h>
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#include <clutter/clutter-stage-manager.h>
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#include <X11/Xlib.h>
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#include <GL/glxext.h>
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#include <glib.h>
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gboolean
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_clutter_backend_glx_handle_event (ClutterBackendX11 *backend_x11,
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XEvent *xevent)
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{
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#ifdef GLX_INTEL_swap_event
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ClutterBackendGLX *backend_glx = CLUTTER_BACKEND_GLX (backend_x11);
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ClutterStageManager *stage_manager;
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GLXBufferSwapComplete *swap_complete_event;
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const GSList *l;
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if (xevent->type != (backend_glx->event_base + GLX_BufferSwapComplete))
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return FALSE; /* Unhandled */
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swap_complete_event = (GLXBufferSwapComplete *)xevent;
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#if 0
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{
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const char *event_name;
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if (swap_complete_event->event_type == GLX_EXCHANGE_COMPLETE_INTEL)
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event_name = "GLX_EXCHANGE_COMPLETE";
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else if (swap_complete_event->event_type == GLX_BLIT_COMPLETE_INTEL)
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event_name = "GLX_BLIT_COMPLETE";
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else
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{
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g_assert (swap_complete_event->event_type == GLX_FLIP_COMPLETE_INTEL);
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event_name = "GLX_FLIP_COMPLETE";
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}
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g_print ("XXX: clutter_backend_glx_event_handle event = %s\n",
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event_name);
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}
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#endif
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stage_manager = clutter_stage_manager_get_default ();
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for (l = clutter_stage_manager_peek_stages (stage_manager); l; l = l->next)
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{
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ClutterStageWindow *stage_win = _clutter_stage_get_window (l->data);
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ClutterStageGLX *stage_glx = CLUTTER_STAGE_GLX (stage_win);
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ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_win);
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if (stage_x11->xwin == swap_complete_event->drawable)
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{
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/* Early versions of the swap_event implementation in Mesa
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* deliver BufferSwapComplete event when not selected for,
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* so if we get a swap event we aren't expecting, just ignore it.
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*
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* https://bugs.freedesktop.org/show_bug.cgi?id=27962
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*/
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if (stage_glx->pending_swaps > 0)
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stage_glx->pending_swaps--;
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return TRUE;
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}
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}
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return TRUE;
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#else
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return FALSE;
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#endif
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}
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