Package org.lwjgl.egl

Class NVPostSubBuffer

java.lang.Object

org.lwjgl.egl.NVPostSubBuffer

public class NVPostSubBuffer
extends Object

Native bindings to the NV_post_sub_buffer extension.

Many EGL client APIs do not support rendering to window surfaces directly, so there is no way to efficiently make small updates to window surfaces. Applications that need to perform many small updates must either use the back-buffer preservation flag which forces eglSwapBuffers to copy the entire back surface, or redraw the entire back buffer on every update and hope eglSwapBuffers is implemented using buffer-flipping. This extension provides a 3rd alternative: a function which posts a sub-rectangle of a window surface and preserves the back-buffer contents.

Requires EGL 1.1.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	EGL_POST_SUB_BUFFER_SUPPORTED_NV

Method Summary

Modifier and Type	Method	Description
static boolean	eglPostSubBufferNV(long dpy, long surface, int x, int y, int width, int height)

Methods inherited from class java.lang.Object

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

Field Details

EGL_POST_SUB_BUFFER_SUPPORTED_NV

public static final int EGL_POST_SUB_BUFFER_SUPPORTED_NV

See Also:

• Constant Field Values

Method Details

eglPostSubBufferNV

public static boolean eglPostSubBufferNV(long dpy,
 long surface,
 int x,
 int y,
 int width,
 int height)