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There is a newer version: 3.3.0
/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.opengl;

/**
 * Native bindings to the ARB_texture_rg extension.
 * 
 * Historically one- and two- component textures have been specified in OpenGL using the intensity, luminance or luminance-alpha (I/L/LA) formats. With the
 * advent of programmable shaders and render-to-texture capabilites these legacy formats carry some historical artifacts which are no longer useful.
 * 
 * For example, when sampling from such textures, the luminance values are replicated across the color components, and the intensity values are replicated
 * across both the color and alpha components. This is no longer necessary with programmable shaders.
 * 
 * It is also desirable to be able to render to one- and two- component format textures using capabilities such as framebuffer objects (FBO), but rendering
 * to I/L/LA formats is under-specified (specifically how to map R/G/B/A values to I/L/A texture channels).
 * 
 * This extension adds new base internal formats for the one-component {@link GL11#GL_RED RED} and two-component {@link #GL_RG RG} (red green) texture formats as well as sized
 * internal formats for fixed-point, floating-point and pure integer texture formats. The new texure formats can be used for texturing as well as for
 * rendering into with framebuffer objects.
 * 
 * Promoted to core in {@link GL30 OpenGL 3.0}.
 */
public final class ARBTextureRG {

    /** Accepted by the {@code internalFormat} parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D. */
    public static final int
        GL_R8             = 0x8229,
        GL_R16            = 0x822A,
        GL_RG8            = 0x822B,
        GL_RG16           = 0x822C,
        GL_R16F           = 0x822D,
        GL_R32F           = 0x822E,
        GL_RG16F          = 0x822F,
        GL_RG32F          = 0x8230,
        GL_R8I            = 0x8231,
        GL_R8UI           = 0x8232,
        GL_R16I           = 0x8233,
        GL_R16UI          = 0x8234,
        GL_R32I           = 0x8235,
        GL_R32UI          = 0x8236,
        GL_RG8I           = 0x8237,
        GL_RG8UI          = 0x8238,
        GL_RG16I          = 0x8239,
        GL_RG16UI         = 0x823A,
        GL_RG32I          = 0x823B,
        GL_RG32UI         = 0x823C,
        GL_RG             = 0x8227,
        GL_COMPRESSED_RED = 0x8225,
        GL_COMPRESSED_RG  = 0x8226;

    /** Accepted by the {@code format} parameter of TexImage1D, TexImage2D, TexImage3D, TexSubImage1D, TexSubImage2D, TexSubImage3D, and ReadPixels. */
    public static final int GL_RG_INTEGER = 0x8228;

    private ARBTextureRG() {}

}