org.lwjgl.opengl

Class GLXARBGetProcAddress

java.lang.Object

org.lwjgl.opengl.GLXARBGetProcAddress

public class GLXARBGetProcAddress
extends java.lang.Object

Native bindings to the GLX_ARB_get_proc_address extension.

This extension adds a function to return the address of GLX and GL extension functions, given the function name. This is necessary with (for example) heterogenous implementations where hardware drivers may implement extension functions not known to the link library; a similar situation on Windows implementations resulted in the wglGetProcAddress function.

Method Summary

Modifier and Type	Method and Description
static long	glXGetProcAddressARB(java.nio.ByteBuffer procName) Returns the address of the extension function named by procName.
static long	glXGetProcAddressARB(java.lang.CharSequence procName) Returns the address of the extension function named by procName.
static long	nglXGetProcAddressARB(long procName) Unsafe version of: GetProcAddressARB

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

nglXGetProcAddressARB

public static long nglXGetProcAddressARB(long procName)

Unsafe version of: GetProcAddressARB

glXGetProcAddressARB

public static long glXGetProcAddressARB(java.nio.ByteBuffer procName)

Returns the address of the extension function named by procName. The pointer returned should be cast to a function pointer type matching the extension function's definition in that extension specification. A return value of NULL indicates that the specified function does not exist for the implementation.

A non-NULL return value for glXGetProcAddressARB does not guarantee that an extension function is actually supported at runtime. The client must must also query GetString(GL11.GL_EXTENSIONS) or QueryExtensionsString to determine if an extension is supported by a particular context.

GL function pointers returned by glXGetProcAddressARB are independent of the currently bound context and may be used by any context which supports the extension.

glXGetProcAddressARB may be queried for all of the following functions:

• All GL and GLX extension functions supported by the implementation (whether those extensions are supported by the current context or not).
• All core (non-extension) functions in GL and GLX from version 1.0 up to and including the versions of those specifications supported by the implementation, as determined by GetString(GL11.GL_VERSION) and QueryVersion queries.

Parameters:

procName - the function name to query

glXGetProcAddressARB

public static long glXGetProcAddressARB(java.lang.CharSequence procName)

Returns the address of the extension function named by procName. The pointer returned should be cast to a function pointer type matching the extension function's definition in that extension specification. A return value of NULL indicates that the specified function does not exist for the implementation.

A non-NULL return value for glXGetProcAddressARB does not guarantee that an extension function is actually supported at runtime. The client must must also query GetString(GL11.GL_EXTENSIONS) or QueryExtensionsString to determine if an extension is supported by a particular context.

GL function pointers returned by glXGetProcAddressARB are independent of the currently bound context and may be used by any context which supports the extension.

glXGetProcAddressARB may be queried for all of the following functions:

• All GL and GLX extension functions supported by the implementation (whether those extensions are supported by the current context or not).
• All core (non-extension) functions in GL and GLX from version 1.0 up to and including the versions of those specifications supported by the implementation, as determined by GetString(GL11.GL_VERSION) and QueryVersion queries.

Parameters:

procName - the function name to query