Provides an implementation of a GL dispatch layer using either global function pointers or a hidden vtable. More...

#include "epoxy/common.h"
#include "epoxy/gl_generated.h"

Typedefs
typedef void(*	epoxy_resolver_stub_t) (void)

typedef epoxy_resolver_stub_t(*	epoxy_resolver_failure_handler_t) (const char *name)

Functions
bool	epoxy_has_gl_extension (const char *extension)
	Returns true if the given GL extension is supported in the current context. More...

bool	epoxy_is_desktop_gl (void)
	Checks whether we're using OpenGL or OpenGL ES. More...

int	epoxy_gl_version (void)
	Returns the version of OpenGL we are using. More...

int	epoxy_glsl_version (void)
	Returns the version of the GL Shading Language we are using. More...

epoxy_resolver_failure_handler_t	epoxy_set_resolver_failure_handler (epoxy_resolver_failure_handler_t handler)
	Sets the function that will be called every time Epoxy fails to resolve a symbol. More...

Detailed Description

Provides an implementation of a GL dispatch layer using either global function pointers or a hidden vtable.

You should include <epoxy/gl.h> instead of <GL/gl.h> and <GL/glext.h>.

Typedef Documentation

◆ epoxy_resolver_failure_handler_t

typedef epoxy_resolver_stub_t(* epoxy_resolver_failure_handler_t) (const char *name)

◆ epoxy_resolver_stub_t

typedef void(* epoxy_resolver_stub_t) (void)

Function Documentation

◆ epoxy_gl_version()

int epoxy_gl_version ( void )

Returns the version of OpenGL we are using.

The version is encoded as:

version = major * 10 + minor

So it can be easily used for version comparisons.

Returns: The encoded version of OpenGL we are using

◆ epoxy_glsl_version()

int epoxy_glsl_version ( void )

Returns the version of the GL Shading Language we are using.

The version is encoded as:

version = major * 100 + minor

So it can be easily used for version comparisons.

Returns: The encoded version of the GL Shading Language we are using

◆ epoxy_has_gl_extension()

bool epoxy_has_gl_extension ( const char * ext )

Returns true if the given GL extension is supported in the current context.

Parameters

ext	The name of the GL extension

Returns: true if the extension is available

Note: that this function can't be called from within glBegin() and glEnd().

See also: epoxy_has_egl_extension(); epoxy_has_glx_extension()

◆ epoxy_is_desktop_gl()

bool epoxy_is_desktop_gl ( void )

Checks whether we're using OpenGL or OpenGL ES.

Returns: true if we're using OpenGL

◆ epoxy_set_resolver_failure_handler()

epoxy_resolver_failure_handler_t epoxy_set_resolver_failure_handler ( epoxy_resolver_failure_handler_t handler )

Sets the function that will be called every time Epoxy fails to resolve a symbol.