/usr/include/glbinding/ContextInfo.h is in libglbinding-dev 2.1.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 | #pragma once
#include <set>
#include <string>
#include <glbinding/glbinding_api.h>
namespace gl
{
enum class GLextension : int;
}
namespace glbinding
{
class AbstractFunction;
class Version;
/**
* @brief
* The ContextInfo class allows for access to metainformation about a context.
* The information is only valid for the currently active context.
*/
class GLBINDING_API ContextInfo
{
public:
/**
* @brief
* Deleted Constructor; this class is intended to be used without instantiation.
*/
ContextInfo() = delete;
/**
* @brief
* Gathers information about the available extensions in the current context.
*
* @return
* The list of available extensions known by glbinding.
*/
static std::set<gl::GLextension> extensions();
/**
* @brief
* Gathers information about the available extensions in the current context.
*
* @param[out] unknown (optional)
* The list of extension names for available extensions not known by glbinding.
*
* @return
* The list of available extensions known by glbinding.
*
* @deprecated
* This method will be removed in future major releases.
*/
static std::set<gl::GLextension> extensions(std::set<std::string> * unknown);
/**
* @brief
* Gathers information about the available extensions in the current context.
*
* @param[out] unknown
* The list of extension names for available extensions not known by glbinding.
*
* @return
* The list of available extensions known by glbinding.
*/
static std::set<gl::GLextension> extensions(std::set<std::string> & unknown);
/**
* @brief
* Queries the renderer string.
*
* @return
* The renderer string.
*/
static std::string renderer();
/**
* @brief
* Queries the vendor string.
*
* @return
* The vendor string.
*/
static std::string vendor();
/**
* @brief
* Queries the OpenGL feature number.
*
* @return
* The version encoding the OpenGL feature.
*/
static Version version();
/**
* @brief
* Queries if all given extensions are supported.
*
* @param[in] extensions
* A set of extensions that are tested for availability in the current context.
*
* @return
* True if all given extensions are supported by the current context.
*/
static bool supported(const std::set<gl::GLextension> & extensions);
/**
* @brief
* Queries if all given extensions are supported.
*
* @param[in] extensions
* A set of extensions that are tested for availability in the current context.
*
* @param[out] unknown
* The subset of extensions (based on the given extensions) not supported by the current context.
*
* @return
* True if all given extensions are supported by the current context.
*/
static bool supported(
const std::set<gl::GLextension> & extensions
, std::set<gl::GLextension> & unsupported);
/**
* @brief
* Queries all missing extensions and unresolved functions for the given OpenGL feature.
*
* @param[in] version
* The version for which all functions and extensions are checked.
* @param[in] resolve
* Specifies whether or not functions shall be explicitly resolved before querrying their status.
*
* @return
* True if all extensions required for the given feature are supported.
*/
static bool supported(const Version & version, bool resolve = false);
/**
* @brief
* Queries all missing extensions for the given OpenGL feature.
*
* @param[in] version
* The version for which all functions and extensions are checked.
* @param[out] unsupportedExtensions
* The set of extensions missing by the current context for full feature support.
* @param[out] unsupportedFunctions
* The set of functions that could not be resolved in the current context.
* @param[in] resolve
* Specifies whether or not functions shall be explicitly resolved before querrying their status.
*
* @return
* True if all extensions required for the given feature are supported.
*/
static bool supported(const Version & version
, std::set<gl::GLextension> & unsupportedExtensions
, std::set<AbstractFunction *> & unsupportedFunctions
, bool resolve = false);
};
} // namespace glbinding
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