c381f0cb8b
When compiling for non-glx platforms the winsys feature data array ends up empty. Empty arrays cause problems for MSVC so this patch adds a stub entry so that the array always has at least one entry. Based on a patch by Ole André Vadla Ravnås
153 lines
4.3 KiB
C
153 lines
4.3 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2010 Intel Corporation.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#ifdef COGL_HAS_GLX_SUPPORT
|
|
#include <GL/glx.h>
|
|
#endif
|
|
|
|
#include "cogl-context.h"
|
|
#include "cogl-feature-private.h"
|
|
|
|
/* Define a set of arrays containing the functions required from GL
|
|
for each winsys feature */
|
|
#define COGL_WINSYS_FEATURE_BEGIN(name, namespaces, extension_names, \
|
|
feature_flags, feature_flags_private) \
|
|
static const CoglFeatureFunction \
|
|
cogl_winsys_feature_ ## name ## _funcs[] = {
|
|
#define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args) \
|
|
{ G_STRINGIFY (name), G_STRUCT_OFFSET (CoglContext, winsys.pf_ ## name) },
|
|
#define COGL_WINSYS_FEATURE_END() \
|
|
{ NULL, 0 }, \
|
|
};
|
|
#include "cogl-winsys-feature-functions.h"
|
|
|
|
/* Define an array of features */
|
|
#undef COGL_WINSYS_FEATURE_BEGIN
|
|
#define COGL_WINSYS_FEATURE_BEGIN(name, namespaces, extension_names, \
|
|
feature_flags, feature_flags_private) \
|
|
{ 255, 255, namespaces, extension_names, \
|
|
feature_flags, feature_flags_private, \
|
|
cogl_winsys_feature_ ## name ## _funcs },
|
|
#undef COGL_WINSYS_FEATURE_FUNCTION
|
|
#define COGL_WINSYS_FEATURE_FUNCTION(ret, name, args)
|
|
#undef COGL_WINSYS_FEATURE_END
|
|
#define COGL_WINSYS_FEATURE_END()
|
|
|
|
static const CoglFeatureData cogl_winsys_feature_data[] =
|
|
{
|
|
#include "cogl-winsys-feature-functions.h"
|
|
|
|
/* This stub is just here so that if the header is empty then we
|
|
won't end up declaring an empty array */
|
|
{ 0, }
|
|
};
|
|
|
|
#define COGL_WINSYS_N_FEATURES (G_N_ELEMENTS (cogl_winsys_feature_data) - 1)
|
|
|
|
static const char *
|
|
_cogl_get_winsys_extensions (void)
|
|
{
|
|
#ifdef COGL_HAS_GLX_SUPPORT
|
|
Display *display = _cogl_xlib_get_display ();
|
|
|
|
return glXQueryExtensionsString (display, DefaultScreen (display));
|
|
#else
|
|
return "";
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
_cogl_winsys_features_init (CoglContext *context)
|
|
{
|
|
CoglWinsysFeatureFlags flags = 0;
|
|
const char *extensions = _cogl_get_winsys_extensions ();
|
|
int i;
|
|
|
|
for (i = 0; i < COGL_WINSYS_N_FEATURES; i++)
|
|
if (_cogl_feature_check ("GLX", cogl_winsys_feature_data + i, 0, 0,
|
|
extensions))
|
|
flags |= cogl_winsys_feature_data[i].feature_flags;
|
|
|
|
context->winsys.feature_flags = flags;
|
|
}
|
|
|
|
void
|
|
_cogl_create_context_winsys (CoglContext *context)
|
|
{
|
|
#ifdef COGL_HAS_XLIB_SUPPORT
|
|
{
|
|
Display *display = _cogl_xlib_get_display ();
|
|
int damage_error;
|
|
|
|
/* Check whether damage events are supported on this display */
|
|
if (!XDamageQueryExtension (display,
|
|
&context->winsys.damage_base,
|
|
&damage_error))
|
|
context->winsys.damage_base = -1;
|
|
|
|
context->winsys.event_filters = NULL;
|
|
|
|
context->winsys.trap_state = NULL;
|
|
}
|
|
#endif
|
|
|
|
#ifdef COGL_HAS_GLX_SUPPORT
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < COGL_WINSYS_N_CACHED_CONFIGS; i++)
|
|
context->winsys.glx_cached_configs[i].depth = -1;
|
|
|
|
context->winsys.rectangle_state = COGL_WINSYS_RECTANGLE_STATE_UNKNOWN;
|
|
}
|
|
#endif
|
|
|
|
_cogl_winsys_features_init (context);
|
|
}
|
|
|
|
#ifdef COGL_HAS_XLIB_SUPPORT
|
|
|
|
#include "cogl-xlib.h"
|
|
|
|
static void
|
|
free_xlib_filter_closure (gpointer data, gpointer user_data)
|
|
{
|
|
g_slice_free (CoglXlibFilterClosure, data);
|
|
}
|
|
|
|
#endif
|
|
|
|
void
|
|
_cogl_destroy_context_winsys (CoglContext *context)
|
|
{
|
|
#ifdef COGL_HAS_XLIB_SUPPORT
|
|
g_slist_foreach (context->winsys.event_filters,
|
|
free_xlib_filter_closure, NULL);
|
|
g_slist_free (context->winsys.event_filters);
|
|
#endif
|
|
}
|