org.lwjgl.opengles

Class ANGLEPackReverseRowOrder

java.lang.Object

org.lwjgl.opengles.ANGLEPackReverseRowOrder

public final class ANGLEPackReverseRowOrder
extends java.lang.Object

Native bindings to the ANGLE_pack_reverse_row_order extension.

This extension introduces a mechanism to allow reversing the order in which image rows are written into a pack destination. This effectively allows an application to flip the results of a ReadPixels in the y direction operation without having to render upside down.

The coordinate system of OpenGL is vertically reversed in comparison to a number of other graphics systems such as native windowing APIs. Applications that perform ReadPixels may have to either render to an intermediate color buffer before calling ReadPixels or perform a flip in software after ReadPixels. In some systems the GL can perform the row reversal during ReadPixels without incurring additional cost.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_PACK_REVERSE_ROW_ORDER_ANGLE Accepted by the pname parameter of PixelStore{if}, GetIntegerv(), GetBooleanv(), and GetFloatv().

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

GL_PACK_REVERSE_ROW_ORDER_ANGLE

public static final int GL_PACK_REVERSE_ROW_ORDER_ANGLE

Accepted by the pname parameter of PixelStore{if}, GetIntegerv(), GetBooleanv(), and GetFloatv().

See Also:

Constant Field Values