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a8f84af776
Previously the Xlib renderer data was meant to be the first member of whatever the winsys data is. This doesn't work well for the EGL winsys because it only needs the Xlib data if the X11 platform is used. The Xlib renderer data is now instead created on demand and connected to the object using cogl_object_set_user_data. There is a new function to get access to it. Reviewed-by: Robert Bragg <robert@linux.intel.com>
109 lines
2.9 KiB
C
109 lines
2.9 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) 2010,2011 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
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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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*/
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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-xlib.h>
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#include <cogl-internal.h>
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#include <cogl-handle.h>
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#include <cogl-context-private.h>
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#include <cogl-framebuffer-private.h>
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#include <cogl-display-private.h>
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#include <cogl-renderer-private.h>
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#include <cogl-xlib-renderer-private.h>
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#include <X11/Xlib.h>
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#include <X11/extensions/Xdamage.h>
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#include "cogl-xlib.h"
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/* FIXME: when we remove the last X11 based Clutter backend then we
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* will get rid of these functions and instead rely on the equivalent
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* _cogl_xlib_renderer API
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*/
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/* This can't be in the Cogl context because it can be set before
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context is created */
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static Display *_cogl_xlib_display = NULL;
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Display *
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cogl_xlib_get_display (void)
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{
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_COGL_GET_CONTEXT (ctx, NULL);
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return cogl_xlib_renderer_get_display (ctx->display->renderer);
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}
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void
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cogl_xlib_set_display (Display *display)
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{
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/* This can only be called once before the Cogl context is created */
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g_assert (_cogl_xlib_display == NULL);
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_cogl_xlib_display = display;
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}
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/* These three functions are wrappers around the equivalent renderer
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functions. They can be removed once all xlib-based backends in
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Clutter know about the renderer */
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CoglFilterReturn
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cogl_xlib_handle_event (XEvent *xevent)
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{
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_COGL_GET_CONTEXT (ctx, COGL_FILTER_CONTINUE);
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/* Pass the event on to the renderer */
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return cogl_xlib_renderer_handle_event (ctx->display->renderer, xevent);
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}
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void
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_cogl_xlib_query_damage_extension (void)
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{
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int damage_error;
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_COGL_GET_CONTEXT (ctxt, NO_RETVAL);
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/* Check whether damage events are supported on this display */
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if (!XDamageQueryExtension (cogl_xlib_get_display (),
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&ctxt->damage_base,
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&damage_error))
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ctxt->damage_base = -1;
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}
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int
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_cogl_xlib_get_damage_base (void)
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{
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CoglX11Renderer *x11_renderer;
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_COGL_GET_CONTEXT (ctxt, -1);
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x11_renderer =
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(CoglX11Renderer *) _cogl_xlib_renderer_get_data (ctxt->display->renderer);
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return x11_renderer->damage_base;
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}
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