72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
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/*
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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) 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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#ifndef __COGL_FEATURE_PRIVATE_H
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#define __COGL_FEATURE_PRIVATE_H
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#include <glib.h>
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#define COGL_CHECK_GL_VERSION(driver_major, driver_minor, \
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target_major, target_minor) \
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((driver_major) > (target_major) || \
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((driver_major) == (target_major) && (driver_minor) >= (target_minor)))
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typedef struct _CoglFeatureFunction CoglFeatureFunction;
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struct _CoglFeatureFunction
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{
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/* The name of the function without the "EXT" or "ARB" suffix */
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const gchar *name;
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/* The offset in the context of where to store the function pointer */
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guint pointer_offset;
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};
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typedef struct _CoglFeatureData CoglFeatureData;
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struct _CoglFeatureData
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{
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/* A minimum GL version which the functions should be defined in
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without needing an extension. Set to 255,255 if it's only
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provided in an extension */
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guchar min_gl_major, min_gl_minor;
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/* \0 separated list of namespaces to try. Eg "EXT\0ARB\0" */
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const gchar *namespaces;
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/* \0 separated list of required extension names without the GL_EXT
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or GL_ARB prefix. All of the extensions must be available for the
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feature to be considered available. If the suffix for an
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extension is different from the namespace, you can specify it
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with a ':' after the namespace */
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const gchar *extension_names;
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/* A set of feature flags to enable if the extension is available */
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CoglFeatureFlags feature_flags;
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/* A list of functions required for this feature. Terminated with a
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NULL name */
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const CoglFeatureFunction *functions;
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};
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gboolean _cogl_feature_check (const CoglFeatureData *data,
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guint gl_major, guint gl_minor,
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const gchar *extensions_string);
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#endif /* __COGL_FEATURE_PRIVATE_H */
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