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A royalty-free, cross-platform API for full-function 2D and 3D graphics on embedded systems - including consoles, phones, appliances and vehicles.
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/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.opengles;

/**
 * Native bindings to the KHR_texture_compression_astc_ldr extension.
 * 
 * Adaptive Scalable Texture Compression (ASTC) is a new texture compression technology that offers unprecendented flexibility, while producing better or
 * comparable results than existing texture compressions at all bit rates. It includes support for 2D and slice-based 3D textures, with low and high
 * dynamic range, at bitrates from below 1 bit/pixel up to 8 bits/pixel in fine steps.
 * 
 * The goal of this extension is to support the full 2D profile of the ASTC texture compression specification, and allow construction of 3D textures from
 * multiple 2D slices.
 * 
 * ASTC-compressed textures are handled in OpenGL by adding new supported formats to the existing mechanisms for handling compressed textures.
 * 
 * What is ASTC
 * 
 * ASTC stands for Adaptive Scalable Texture Compression. The ASTC formats form a family of related compressed texture image formats. They are all derived
 * from a common set of definitions.
 * 
 * ASTC textures may be either 2D or 3D.
 * 
 * ASTC textures may be encoded using either high or low dynamic range. Low dynamic range images may optionally be specified using the sRGB color space.
 * 
 * A sub-profile ("HDR Profile") is defined, which supports only 2D images (and 3D images made up of multiple 2D slices) at low or high dynamic range.
 * 
 * Support for this profile is indicated by the presence of the extension string "GL_KHR_texture_compression_astc_hdr". If, in future, the full profile is
 * supported, "GL_KHR_texture_compression_astc_hdr" must still be published, in order to ensure backward compatibility.
 * 
 * A lower sub-profile ("LDR Profile") may be implemented, which supports only 2D images at low dynamic range. This is indicated by the presence of the
 * extension string "GL_KHR_texture_compression_astc_ldr". If either the HDR or full profile are implemented, then both name strings
 * "GL_KHR_texture_compression_astc_ldr" and "GL_KHR_texture_compression_astc_hdr" must be published.
 * 
 * ASTC textures may be encoded as 1, 2, 3 or 4 components, but they are all decoded into RGBA.
 * 
 * ASTC has a variable block size, and this is specified as part of the name of the token passed to CompressedImage2D and its related functions.
 */
public final class KHRTextureCompressionASTCLDR {

    /**
     * Accepted by the {@code internalformat} parameter of CompressedTexImage2D, CompressedTexSubImage2D, CompressedTexImage3D, CompressedTexSubImage3D,
     * TexStorage2D, TextureStorage2D, TexStorage3D, and TextureStorage3D.
     */
    public static final int
        GL_COMPRESSED_RGBA_ASTC_4x4_KHR           = 0x93B0,
        GL_COMPRESSED_RGBA_ASTC_5x4_KHR           = 0x93B1,
        GL_COMPRESSED_RGBA_ASTC_5x5_KHR           = 0x93B2,
        GL_COMPRESSED_RGBA_ASTC_6x5_KHR           = 0x93B3,
        GL_COMPRESSED_RGBA_ASTC_6x6_KHR           = 0x93B4,
        GL_COMPRESSED_RGBA_ASTC_8x5_KHR           = 0x93B5,
        GL_COMPRESSED_RGBA_ASTC_8x6_KHR           = 0x93B6,
        GL_COMPRESSED_RGBA_ASTC_8x8_KHR           = 0x93B7,
        GL_COMPRESSED_RGBA_ASTC_10x5_KHR          = 0x93B8,
        GL_COMPRESSED_RGBA_ASTC_10x6_KHR          = 0x93B9,
        GL_COMPRESSED_RGBA_ASTC_10x8_KHR          = 0x93BA,
        GL_COMPRESSED_RGBA_ASTC_10x10_KHR         = 0x93BB,
        GL_COMPRESSED_RGBA_ASTC_12x10_KHR         = 0x93BC,
        GL_COMPRESSED_RGBA_ASTC_12x12_KHR         = 0x93BD,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR   = 0x93D0,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR   = 0x93D1,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR   = 0x93D2,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR   = 0x93D3,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR   = 0x93D4,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR   = 0x93D5,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR   = 0x93D6,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR   = 0x93D7,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR  = 0x93D8,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR  = 0x93D9,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR  = 0x93DA,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR = 0x93DB,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR = 0x93DC,
        GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR = 0x93DD;

    private KHRTextureCompressionASTCLDR() {}

}