extensions.c File Reference

#include "glheader.h"
#include "imports.h"
#include "context.h"
#include "extensions.h"
#include "simple_list.h"
#include "mtypes.h"

Defines
#define	F(x)   offsetof(struct gl_extensions, x)
#define	ON   GL_TRUE
#define	OFF   GL_FALSE
Functions
void	_mesa_enable_sw_extensions (GLcontext *ctx)
	Enable all extensions suitable for a software-only renderer.
void	_mesa_enable_imaging_extensions (GLcontext *ctx)
	Enable GL_ARB_imaging and all the EXT extensions that are subsets of it.
void	_mesa_enable_1_3_extensions (GLcontext *ctx)
	Enable all OpenGL 1.3 features and extensions.
void	_mesa_enable_1_4_extensions (GLcontext *ctx)
	Enable all OpenGL 1.4 features and extensions.
void	_mesa_enable_1_5_extensions (GLcontext *ctx)
	Enable all OpenGL 1.5 features and extensions.
void	_mesa_enable_2_0_extensions (GLcontext *ctx)
	Enable all OpenGL 2.0 features and extensions.
void	_mesa_enable_2_1_extensions (GLcontext *ctx)
	Enable all OpenGL 2.1 features and extensions.
static GLboolean	set_extension (GLcontext *ctx, const char *name, GLboolean state)
	Either enable or disable the named extension.
void	_mesa_enable_extension (GLcontext *ctx, const char *name)
	Enable the named extension.
void	_mesa_disable_extension (GLcontext *ctx, const char *name)
	Disable the named extension.
GLboolean	_mesa_extension_is_enabled (GLcontext *ctx, const char *name)
	Test if the named extension is enabled in this context.
static char *	append (const char *a, const char *b)
	Append string 'b' onto string 'a'.
static const char *	get_extension_override (GLcontext *ctx)
	Check the MESA_EXTENSION_OVERRIDE env var.
void	_mesa_init_extensions (GLcontext *ctx)
	Run through the default_extensions array above and set the ctx->Extensions.ARB/EXT_* flags accordingly.
GLubyte *	_mesa_make_extension_string (GLcontext *ctx)
	Construct the GL_EXTENSIONS string.
Variables
struct {
GLboolean   enabled
const char *   name
int   flag_offset
}	default_extensions []

---

Define Documentation

#define F

(

x

)

offsetof(struct gl_extensions, x)

#define OFF   GL_FALSE

#define ON   GL_TRUE

---

Function Documentation

void _mesa_disable_extension	(	GLcontext *	ctx,
		const char *	name
	)

Disable the named extension.

XXX is this really needed???

void _mesa_enable_1_3_extensions

(

GLcontext *

ctx

)

Enable all OpenGL 1.3 features and extensions.

A convenience function to be called by drivers.

void _mesa_enable_1_4_extensions

(

GLcontext *

ctx

)

Enable all OpenGL 1.4 features and extensions.

A convenience function to be called by drivers.

void _mesa_enable_1_5_extensions

(

GLcontext *

ctx

)

Enable all OpenGL 1.5 features and extensions.

A convenience function to be called by drivers.

void _mesa_enable_2_0_extensions

(

GLcontext *

ctx

)

Enable all OpenGL 2.0 features and extensions.

A convenience function to be called by drivers.

void _mesa_enable_2_1_extensions

(

GLcontext *

ctx

)

Enable all OpenGL 2.1 features and extensions.

A convenience function to be called by drivers.

void _mesa_enable_extension	(	GLcontext *	ctx,
		const char *	name
	)

Enable the named extension.

Typically called by drivers.

void _mesa_enable_imaging_extensions

(

GLcontext *

ctx

)

Enable GL_ARB_imaging and all the EXT extensions that are subsets of it.

void _mesa_enable_sw_extensions

(

GLcontext *

ctx

)

Enable all extensions suitable for a software-only renderer.

This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc.

GLboolean _mesa_extension_is_enabled	(	GLcontext *	ctx,
		const char *	name
	)

Test if the named extension is enabled in this context.

void _mesa_init_extensions

(

GLcontext *

ctx

)

Run through the default_extensions array above and set the ctx->Extensions.ARB/EXT_* flags accordingly.

To be called during context initialization.

GLubyte* _mesa_make_extension_string

(

GLcontext *

ctx

)

Construct the GL_EXTENSIONS string.

Called the first time that glGetString(GL_EXTENSIONS) is called.

static char* append	(	const char *	a,
		const char *	b
	)			[static]

Append string 'b' onto string 'a'.

Free 'a' and return new string.

static const char* get_extension_override

(

GLcontext *

ctx

)

[static]

Check the MESA_EXTENSION_OVERRIDE env var.

For extension names that are recognized, turn them on. For extension names that are recognized and prefixed with '-', turn them off. Return a string of the unknown/leftover names.

static GLboolean set_extension	(	GLcontext *	ctx,
		const char *	name,
		GLboolean	state
	)			[static]

Either enable or disable the named extension.

Returns:

GL_TRUE for success, GL_FALSE if invalid extension name

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Variable Documentation

struct { ... } default_extensions[] [static]

GLboolean enabled

int flag_offset

const char* name

---