16c7d12e6c
This is similar to clutter_x11_{,un}trap_errors except that it stores
the previous trap state in a caller-allocated struct so that it can be
re-entrant.
Make _cogl_xlib_trap_errors re-entrant
(this will be squashed into an earlier commit)
81 lines
2.3 KiB
C
81 lines
2.3 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 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, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_CONTEXT_WINSYS_H
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#define __COGL_CONTEXT_WINSYS_H
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#ifdef COGL_HAS_XLIB_SUPPORT
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#include <X11/Xlib.h>
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#endif
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typedef enum
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{
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COGL_WINSYS_FEATURE_STUB /* no features are defined yet */
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} CoglWinsysFeatureFlags;
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#ifdef COGL_HAS_XLIB_SUPPORT
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typedef struct _CoglXlibTrapState CoglXlibTrapState;
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struct _CoglXlibTrapState
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{
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/* These values are intended to be internal to
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_cogl_xlib_{un,}trap_errors but they need to be in the header so
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that the struct can be allocated on the stack */
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int (* old_error_handler) (Display *, XErrorEvent *);
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int trapped_error_code;
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CoglXlibTrapState *old_state;
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};
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#endif
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typedef struct
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{
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/* These are specific to winsys backends supporting Xlib. This
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should probably eventually be moved into a separate file specific
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to Xlib when Cogl gains a more complete winsys abstraction */
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#ifdef COGL_HAS_XLIB_SUPPORT
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GSList *event_filters;
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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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#endif
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/* Function pointers for winsys specific extensions */
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#define COGL_WINSYS_FEATURE_BEGIN(a, b, c, d, e)
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#define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args) \
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ret (APIENTRY * pf_ ## name) args;
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#define COGL_WINSYS_FEATURE_END()
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#include "cogl-winsys-feature-functions.h"
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#undef COGL_WINSYS_FEATURE_BEGIN
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#undef COGL_WINSYS_FEATURE_FUNCTION
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#undef COGL_WINSYS_FEATURE_END
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CoglWinsysFeatureFlags feature_flags;
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} CoglContextWinsys;
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#endif /* __COGL_CONTEXT_WINSYS_H */
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