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181b875a3d
Previously we relied on the application to send all X events through Cogl using cogl_xlib_renderer_handle_event. This breaks the abstraction that an application shouldn't need to know what winsys Cogl is using. Now that we have main loop integreation in Cogl, the Xlib-based winsys's can report that Cogl needs to block on the file descriptor of the X connection and it can manually handle the events. The event retrieval can be disabled by an application if it calls the new cogl_xlib_renderer_set_event_retrieval_enabled() function. The event retrieval will also automatically be disabled if the application sets a foreign display. Reviewed-by: Robert Bragg <robert@linux.intel.com>
96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/*
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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) 2011 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 License
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* 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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#ifndef __COGL_RENDERER_XLIB_PRIVATE_H
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#define __COGL_RENDERER_XLIB_PRIVATE_H
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#include "cogl-object-private.h"
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#include "cogl-xlib-private.h"
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#include "cogl-x11-renderer-private.h"
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#include "cogl-context.h"
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typedef struct _CoglXlibRenderer
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{
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CoglX11Renderer _parent;
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Display *xdpy;
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/* Current top of the XError trap state stack. The actual memory for
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these is expected to be allocated on the stack by the caller */
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CoglXlibTrapState *trap_state;
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/* A poll FD for handling event retrieval within Cogl */
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CoglPollFD poll_fd;
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} CoglXlibRenderer;
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gboolean
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_cogl_xlib_renderer_connect (CoglRenderer *renderer, GError **error);
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void
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_cogl_xlib_renderer_disconnect (CoglRenderer *renderer);
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/*
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* cogl_xlib_renderer_trap_errors:
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* @state: A temporary place to store data for the trap.
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*
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* Traps every X error until _cogl_xlib_renderer_untrap_errors()
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* called. You should allocate an uninitialised CoglXlibTrapState
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* struct on the stack to pass to this function. The same pointer
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* should later be passed to _cogl_xlib_renderer_untrap_errors().
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*
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* Calls to _cogl_xlib_renderer_trap_errors() can be nested as long as
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* _cogl_xlib_renderer_untrap_errors() is called with the
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* corresponding state pointers in reverse order.
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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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* cogl_xlib_renderer_untrap_errors:
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* @state: The state that was passed to _cogl_xlib_renderer_trap_errors().
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*
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* Removes the X error trap and returns the current status.
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*
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* Return value: the trapped error code, or 0 for success
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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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CoglXlibRenderer *
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_cogl_xlib_renderer_get_data (CoglRenderer *renderer);
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void
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_cogl_xlib_renderer_poll_get_info (CoglRenderer *renderer,
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CoglPollFD **poll_fds,
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int *n_poll_fds,
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gint64 *timeout);
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void
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_cogl_xlib_renderer_poll_dispatch (CoglRenderer *renderer,
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const CoglPollFD *poll_fds,
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int n_poll_fds);
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#endif /* __COGL_RENDERER_XLIB_PRIVATE_H */
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