Package org.lwjgl.opengles
Class ANGLEPackReverseRowOrder
java.lang.Object
org.lwjgl.opengles.ANGLEPackReverseRowOrder
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.
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Field Summary
Modifier and TypeFieldDescriptionstatic final int
Accepted by thepname
parameter of PixelStore{if}, GetIntegerv(), GetBooleanv(), and GetFloatv(). -
Method Summary
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Field Details
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GL_PACK_REVERSE_ROW_ORDER_ANGLE
public static final int GL_PACK_REVERSE_ROW_ORDER_ANGLEAccepted by thepname
parameter of PixelStore{if}, GetIntegerv(), GetBooleanv(), and GetFloatv().- See Also:
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