2010-11-05 08:28:33 -04:00
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/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2008,2009,2010 Intel Corporation.
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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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 "cogl.h"
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#include "cogl-internal.h"
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#include "cogl-object.h"
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#include "cogl-renderer-private.h"
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2011-06-28 09:16:24 -04:00
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#include "cogl-xlib-renderer-private.h"
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#include "cogl-x11-renderer-private.h"
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2010-11-05 08:28:33 -04:00
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#include "cogl-winsys-private.h"
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#include <X11/Xlib.h>
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#include <X11/extensions/Xdamage.h>
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static char *_cogl_x11_display_name = NULL;
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static GList *_cogl_xlib_renderers = NULL;
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static void
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register_xlib_renderer (CoglRenderer *renderer)
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{
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GList *l;
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for (l = _cogl_xlib_renderers; l; l = l->next)
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if (l->data == renderer)
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return;
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_cogl_xlib_renderers = g_list_prepend (_cogl_xlib_renderers, renderer);
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}
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static void
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unregister_xlib_renderer (CoglRenderer *renderer)
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{
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_cogl_xlib_renderers = g_list_remove (_cogl_xlib_renderers, renderer);
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}
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static CoglRenderer *
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get_renderer_for_xdisplay (Display *xdpy)
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{
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GList *l;
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for (l = _cogl_xlib_renderers; l; l = l->next)
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{
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CoglRenderer *renderer = l->data;
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2011-06-28 09:16:24 -04:00
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CoglXlibRenderer *xlib_renderer = renderer->winsys;
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2010-11-05 08:28:33 -04:00
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if (xlib_renderer->xdpy == xdpy)
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return renderer;
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}
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return NULL;
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}
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static int
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error_handler (Display *xdpy,
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XErrorEvent *error)
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{
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CoglRenderer *renderer;
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2011-06-28 09:16:24 -04:00
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CoglXlibRenderer *xlib_renderer;
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2010-11-05 08:28:33 -04:00
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renderer = get_renderer_for_xdisplay (xdpy);
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xlib_renderer = renderer->winsys;
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g_assert (xlib_renderer->trap_state);
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xlib_renderer->trap_state->trapped_error_code = error->error_code;
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return 0;
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}
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void
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_cogl_xlib_renderer_trap_errors (CoglRenderer *renderer,
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CoglXlibTrapState *state)
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{
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2011-06-28 09:16:24 -04:00
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CoglXlibRenderer *xlib_renderer;
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2010-11-05 08:28:33 -04:00
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xlib_renderer = renderer->winsys;
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state->trapped_error_code = 0;
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state->old_error_handler = XSetErrorHandler (error_handler);
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state->old_state = xlib_renderer->trap_state;
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xlib_renderer->trap_state = state;
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}
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int
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_cogl_xlib_renderer_untrap_errors (CoglRenderer *renderer,
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CoglXlibTrapState *state)
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{
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2011-06-28 09:16:24 -04:00
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CoglXlibRenderer *xlib_renderer;
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2010-11-05 08:28:33 -04:00
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xlib_renderer = renderer->winsys;
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g_assert (state == xlib_renderer->trap_state);
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XSetErrorHandler (state->old_error_handler);
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xlib_renderer->trap_state = state->old_state;
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return state->trapped_error_code;
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}
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static Display *
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assert_xlib_display (CoglRenderer *renderer, GError **error)
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{
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Display *xdpy = cogl_xlib_renderer_get_foreign_display (renderer);
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CoglXlibRenderer *xlib_renderer = renderer->winsys;
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2010-11-05 08:28:33 -04:00
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/* A foreign display may have already been set... */
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if (xdpy)
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{
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xlib_renderer->xdpy = xdpy;
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return xdpy;
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}
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xdpy = XOpenDisplay (_cogl_x11_display_name);
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if (xdpy == NULL)
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{
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g_set_error (error,
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COGL_RENDERER_ERROR,
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COGL_RENDERER_ERROR_XLIB_DISPLAY_OPEN,
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"Failed to open X Display %s", _cogl_x11_display_name);
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return NULL;
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}
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xlib_renderer->xdpy = xdpy;
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return xdpy;
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}
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gboolean
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_cogl_xlib_renderer_connect (CoglRenderer *renderer, GError **error)
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{
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CoglXlibRenderer *xlib_renderer = renderer->winsys;
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CoglX11Renderer *x11_renderer = renderer->winsys;
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2010-11-05 08:28:33 -04:00
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int damage_error;
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if (!assert_xlib_display (renderer, error))
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return FALSE;
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/* Check whether damage events are supported on this display */
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if (!XDamageQueryExtension (xlib_renderer->xdpy,
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&x11_renderer->damage_base,
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&damage_error))
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x11_renderer->damage_base = -1;
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xlib_renderer->trap_state = NULL;
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register_xlib_renderer (renderer);
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return TRUE;
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}
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void
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_cogl_xlib_renderer_disconnect (CoglRenderer *renderer)
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{
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2011-06-28 09:16:24 -04:00
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CoglXlibRenderer *xlib_renderer = renderer->winsys;
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2010-11-05 08:28:33 -04:00
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2011-07-19 14:46:37 -04:00
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if (!renderer->foreign_xdpy && xlib_renderer->xdpy)
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2010-11-05 08:28:33 -04:00
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XCloseDisplay (xlib_renderer->xdpy);
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unregister_xlib_renderer (renderer);
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}
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Display *
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2011-06-28 09:16:24 -04:00
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cogl_xlib_renderer_get_display (CoglRenderer *renderer)
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2010-11-05 08:28:33 -04:00
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{
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2011-06-28 09:16:24 -04:00
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CoglXlibRenderer *xlib_renderer;
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2010-11-05 08:28:33 -04:00
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g_return_val_if_fail (cogl_is_renderer (renderer), NULL);
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xlib_renderer = renderer->winsys;
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return xlib_renderer->xdpy;
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}
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2011-06-28 08:38:50 -04:00
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CoglFilterReturn
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cogl_xlib_renderer_handle_event (CoglRenderer *renderer,
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XEvent *event)
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{
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return _cogl_renderer_handle_native_event (renderer, event);
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}
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void
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cogl_xlib_renderer_add_filter (CoglRenderer *renderer,
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CoglXlibFilterFunc func,
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void *data)
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{
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_cogl_renderer_add_native_filter (renderer,
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(CoglNativeFilterFunc)func, data);
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}
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void
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cogl_xlib_renderer_remove_filter (CoglRenderer *renderer,
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CoglXlibFilterFunc func,
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void *data)
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{
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_cogl_renderer_remove_native_filter (renderer,
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(CoglNativeFilterFunc)func, data);
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}
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