f6ae9decaa
Instead of having cogl_renderer_xlib_add_filter and friends there is now cogl_renderer_add_native_filter which can be used regardless of the backend. The callback function for the filter now just takes a void pointer instead of an XEvent pointer which should be interpreted differently depending on the backend. For example, on Xlib it would still be an XEvent but on Windows it could be a MSG. This simplifies the code somewhat because the _cogl_xlib_add_filter no longer needs to have its own filter list when a stub renderer is used because there is always a renderer available. cogl_renderer_xlib_handle_event has also been renamed to cogl_renderer_handle_native_event. This just forwards the event on to all of the listeners. The backend renderer is expected to register its own event filter if it wants to process the events in some way.
165 lines
5.1 KiB
C
165 lines
5.1 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) 2007,2008,2009 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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#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <cogl/cogl.h> can be included directly."
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#endif
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#ifndef __COGL_RENDERER_H__
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#define __COGL_RENDERER_H__
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#include <glib.h>
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#include <cogl/cogl-types.h>
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#include <cogl/cogl-onscreen-template.h>
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#ifdef COGL_HAS_XLIB
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#include <X11/Xlib.h>
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#endif
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G_BEGIN_DECLS
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/**
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* SECTION:cogl-renderer
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* @short_description:
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*
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*/
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#define cogl_renderer_error_quark cogl_renderer_error_quark_EXP
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#define COGL_RENDERER_ERROR cogl_renderer_error_quark ()
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GQuark
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cogl_renderer_error_quark (void);
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typedef struct _CoglRenderer CoglRenderer;
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#define cogl_is_renderer cogl_is_renderer_EXP
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gboolean
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cogl_is_renderer (void *object);
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#define cogl_renderer_new cogl_renderer_new_EXP
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CoglRenderer *
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cogl_renderer_new (void);
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/* optional configuration APIs */
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#define cogl_renderer_handle_native_event cogl_renderer_handle_native_event_EXP
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/*
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* cogl_renderer_handle_native_event:
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* @event: pointer to native event structure
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*
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* This function processes a single event; it can be used to hook into
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* external event retrieval (for example that done by Clutter or
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* GDK). The type of the structure that event points to depends on the
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* window system used for the renderer. On an xlib renderer it would
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* be a pointer to an XEvent or an a Windows renderer it would be a
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* pointer to a MSG struct.
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*
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* Return value: #CoglFilterReturn. %COGL_FILTER_REMOVE indicates that
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* Cogl has internally handled the event and the caller should do no
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* further processing. %COGL_FILTER_CONTINUE indicates that Cogl is
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* either not interested in the event, or has used the event to update
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* internal state without taking any exclusive action.
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*/
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CoglFilterReturn
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cogl_renderer_handle_native_event (CoglRenderer *renderer,
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void *event);
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#define cogl_renderer_add_native_filter cogl_renderer_add_native_filter_EXP
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/*
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* _cogl_renderer_add_native_filter:
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*
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* Adds a callback function that will receive all native events. The
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* function can stop further processing of the event by return
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* %COGL_FILTER_REMOVE. What is considered a native event depends on
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* the type of renderer used. An xlib based renderer would pass all
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* XEvents whereas a Windows based renderer would pass MSGs.
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*/
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void
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cogl_renderer_add_native_filter (CoglRenderer *renderer,
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CoglNativeFilterFunc func,
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void *data);
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#define cogl_renderer_remove_native_filter \
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cogl_renderer_remove_native_filter_EXP
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/*
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* _cogl_renderer_remove_native_filter:
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*
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* Removes a callback that was previously added with
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* _cogl_renderer_add_native_filter().
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*/
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void
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cogl_renderer_remove_native_filter (CoglRenderer *renderer,
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CoglNativeFilterFunc func,
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void *data);
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#ifdef COGL_HAS_XLIB
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#define cogl_renderer_xlib_get_foreign_display \
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cogl_renderer_xlib_get_foreign_display_EXP
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/*
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* cogl_renderer_xlib_get_foreign_display:
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*
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* Return value: the foreign Xlib display that will be used by any Xlib based
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* winsys backend. The display needs to be set with
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* cogl_renderer_xlib_set_foreign_display() before this function is called.
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*/
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Display *
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cogl_renderer_xlib_get_foreign_display (CoglRenderer *renderer);
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#define cogl_renderer_xlib_set_foreign_display \
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cogl_renderer_xlib_set_foreign_display_EXP
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/*
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* cogl_renderer_xlib_set_foreign_display:
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*
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* Sets a foreign Xlib display that Cogl will use for and Xlib based winsys
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* backend.
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*/
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void
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cogl_renderer_xlib_set_foreign_display (CoglRenderer *renderer,
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Display *display);
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#define cogl_renderer_xlib_get_display cogl_renderer_xlib_get_display_EXP
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Display *
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cogl_renderer_xlib_get_display (CoglRenderer *renderer);
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#endif /* COGL_HAS_XLIB */
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#define cogl_renderer_check_onscreen_template \
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cogl_renderer_check_onscreen_template_EXP
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gboolean
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cogl_renderer_check_onscreen_template (CoglRenderer *renderer,
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CoglOnscreenTemplate *onscreen_template,
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GError **error);
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/* Final connection API */
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#define cogl_renderer_connect cogl_renderer_connect_EXP
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gboolean
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cogl_renderer_connect (CoglRenderer *renderer, GError **error);
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G_END_DECLS
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#endif /* __COGL_RENDERER_H__ */
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