mirror of
https://github.com/brl/mutter.git
synced 2024-11-22 16:10:41 -05:00
56dd71dba0
The Cogl context has now a feature_flags_private enum that will allow us to query and use OpenGL features without exposing them in the public API. The ARB_fragment_program extension is the first user of those flags. Looking for this extension only happens in the gl driver as the gles drivers will not expose them. One can use _cogl_features_available_private() to check for the availability of such private features. While at it, reindent cogl-internal.h as described in CODING_STYLE.
75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2009 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/>.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifndef __COGL_FEATURE_PRIVATE_H
|
|
#define __COGL_FEATURE_PRIVATE_H
|
|
|
|
#include <glib.h>
|
|
|
|
#define COGL_CHECK_GL_VERSION(driver_major, driver_minor, \
|
|
target_major, target_minor) \
|
|
((driver_major) > (target_major) || \
|
|
((driver_major) == (target_major) && (driver_minor) >= (target_minor)))
|
|
|
|
typedef struct _CoglFeatureFunction CoglFeatureFunction;
|
|
|
|
struct _CoglFeatureFunction
|
|
{
|
|
/* The name of the function without the "EXT" or "ARB" suffix */
|
|
const char *name;
|
|
/* The offset in the context of where to store the function pointer */
|
|
unsigned int pointer_offset;
|
|
};
|
|
|
|
typedef struct _CoglFeatureData CoglFeatureData;
|
|
|
|
struct _CoglFeatureData
|
|
{
|
|
/* A minimum GL version which the functions should be defined in
|
|
without needing an extension. Set to 255,255 if it's only
|
|
provided in an extension */
|
|
guint8 min_gl_major, min_gl_minor;
|
|
/* \0 separated list of namespaces to try. Eg "EXT\0ARB\0" */
|
|
const char *namespaces;
|
|
/* \0 separated list of required extension names without the GL_EXT
|
|
or GL_ARB prefix. All of the extensions must be available for the
|
|
feature to be considered available. If the suffix for an
|
|
extension is different from the namespace, you can specify it
|
|
with a ':' after the namespace */
|
|
const char *extension_names;
|
|
/* A set of feature flags to enable if the extension is available */
|
|
CoglFeatureFlags feature_flags;
|
|
/* A set of private feature flags to enable if the extension is available
|
|
* and for internal use only */
|
|
CoglFeatureFlagsPrivate feature_flags_private;
|
|
/* A list of functions required for this feature. Terminated with a
|
|
NULL name */
|
|
const CoglFeatureFunction *functions;
|
|
};
|
|
|
|
gboolean _cogl_feature_check (const CoglFeatureData *data,
|
|
unsigned int gl_major, unsigned int gl_minor,
|
|
const char *extensions_string);
|
|
|
|
#endif /* __COGL_FEATURE_PRIVATE_H */
|