diff --git a/doc/changelog.dox b/doc/changelog.dox
index cde469879..e540886ae 100644
--- a/doc/changelog.dox
+++ b/doc/changelog.dox
@@ -50,9 +50,9 @@ See also:
 -   New @ref BasicMutableImageView "MutableImageView*D" and
     @ref BasicMutableCompressedImageView "MutableCompressedImageView*D" types
     for mutable views onto image data
--   Added sRGB BC1-3, BC4, BC5, BC6G, BC7, ETC2, EAC, ASTC and PVRTC formats to
-    @ref CompressedPixelFormat as well as their conversion to corresponding
-    GL/Vulkan formats in @ref GL::compressedPixelFormat() and
+-   Added sRGB BC1-3, BC4, BC5, BC6h, BC7, ETC2, EAC, 2D/3D ASTC and PVRTC
+    formats to @ref CompressedPixelFormat as well as their conversion to
+    corresponding GL/Vulkan formats in @ref GL::compressedPixelFormat() and
     @ref Vk::vkFormat(Magnum::CompressedPixelFormat)
 -   New @ref PixelFormat::R8Srgb, @ref PixelFormat::RG8Srgb,
     @ref PixelFormat::RGB8Srgb and @ref PixelFormat::RGBA8Srgb sRGB pixel
@@ -111,6 +111,8 @@ See also:
         complementing the desktop support for BC4, BC5, BC6H and BC7 formats
     -   @webgl_extension{WEBGL,texture_compression_astc} WebGL extension,
         complementing the desktop and ES support for ASTC
+    -   @gl_extension{OES,texture_compression_astc} OpenGL ES extension, adding
+        3D ASTC compression (unfortunately there's no desktop equivalent yet)
     -   PVRTC formats defined by the @gl_extension{IMG,texture_compression_pvrtc}
         / @gl_extension{IMG,pvrtc_sRGB} OpenGL ES and
         @webgl_extension{WEBGL,compressed_texture_pvrtc} WebGL extensions
diff --git a/src/Magnum/GL/Context.cpp b/src/Magnum/GL/Context.cpp
index 8919c0cc2..35ea111c9 100644
--- a/src/Magnum/GL/Context.cpp
+++ b/src/Magnum/GL/Context.cpp
@@ -335,7 +335,11 @@ constexpr Extension ExtensionList[]{
     _extension(OES,mapbuffer),
     _extension(OES,stencil1),
     _extension(OES,stencil4),
-    _extension(OES,texture_float_linear)};
+    _extension(OES,texture_float_linear),
+    #ifndef MAGNUM_TARGET_GLES2
+    _extension(OES,texture_compression_astc)
+    #endif
+    };
 constexpr Extension ExtensionListES300[]{
     #ifdef MAGNUM_TARGET_GLES2
     _extension(ANGLE,framebuffer_blit),
diff --git a/src/Magnum/GL/Extensions.h b/src/Magnum/GL/Extensions.h
index 2bdb4c6c7..e47cba50f 100644
--- a/src/Magnum/GL/Extensions.h
+++ b/src/Magnum/GL/Extensions.h
@@ -493,14 +493,15 @@ namespace ANDROID {
     _extension(120,OES,surfaceless_context,         GLES200, GLES300) // #116
     #endif
     #ifndef MAGNUM_TARGET_GLES2
-    _extension(121,OES,sample_shading,              GLES300, GLES320) // #169
-    _extension(122,OES,sample_variables,            GLES300, GLES320) // #170
-    _extension(123,OES,shader_image_atomic,         GLES310, GLES320) // #171
-    _extension(124,OES,shader_multisample_interpolation, GLES300, GLES320) // #172
+    _extension(121,OES,texture_compression_astc,    GLES300,    None) // #162
+    _extension(122,OES,sample_shading,              GLES300, GLES320) // #169
+    _extension(123,OES,sample_variables,            GLES300, GLES320) // #170
+    _extension(124,OES,shader_image_atomic,         GLES310, GLES320) // #171
+    _extension(125,OES,shader_multisample_interpolation, GLES300, GLES320) // #172
     #endif
-    _extension(125,OES,texture_stencil8,            GLES200, GLES320) // #173
+    _extension(126,OES,texture_stencil8,            GLES200, GLES320) // #173
     #ifndef MAGNUM_TARGET_GLES2
-    _extension(126,OES,texture_storage_multisample_2d_array, GLES310, GLES320) // #174
+    _extension(127,OES,texture_storage_multisample_2d_array, GLES310, GLES320) // #174
     #endif
 } namespace MAGNUM {
     #ifndef MAGNUM_TARGET_GLES2
diff --git a/src/Magnum/GL/Implementation/compressedPixelFormatMapping.hpp b/src/Magnum/GL/Implementation/compressedPixelFormatMapping.hpp
index 70aa87c66..19e7c74e7 100644
--- a/src/Magnum/GL/Implementation/compressedPixelFormatMapping.hpp
+++ b/src/Magnum/GL/Implementation/compressedPixelFormatMapping.hpp
@@ -103,6 +103,49 @@ _c(Astc12x10RGBAUnorm, RGBAAstc12x10)
 _c(Astc12x10RGBASrgb, SRGB8Alpha8Astc12x10)
 _c(Astc12x12RGBAUnorm, RGBAAstc12x12)
 _c(Astc12x12RGBASrgb, SRGB8Alpha8Astc12x12)
+#if defined(MAGNUM_TARGET_GLES) && !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
+_c(Astc3x3x3RGBAUnorm, RGBAAstc3x3x3)
+_c(Astc3x3x3RGBASrgb, SRGB8Alpha8Astc3x3x3)
+_c(Astc4x3x3RGBAUnorm, RGBAAstc4x3x3)
+_c(Astc4x3x3RGBASrgb, SRGB8Alpha8Astc4x3x3)
+_c(Astc4x4x3RGBAUnorm, RGBAAstc4x4x3)
+_c(Astc4x4x3RGBASrgb, SRGB8Alpha8Astc4x4x3)
+_c(Astc4x4x4RGBAUnorm, RGBAAstc4x4x4)
+_c(Astc4x4x4RGBASrgb, SRGB8Alpha8Astc4x4x4)
+_c(Astc5x4x4RGBAUnorm, RGBAAstc5x4x4)
+_c(Astc5x4x4RGBASrgb, SRGB8Alpha8Astc5x4x4)
+_c(Astc5x5x4RGBAUnorm, RGBAAstc5x5x4)
+_c(Astc5x5x4RGBASrgb, SRGB8Alpha8Astc5x5x4)
+_c(Astc5x5x5RGBAUnorm, RGBAAstc5x5x5)
+_c(Astc5x5x5RGBASrgb, SRGB8Alpha8Astc5x5x5)
+_c(Astc6x5x5RGBAUnorm, RGBAAstc6x5x5)
+_c(Astc6x5x5RGBASrgb, SRGB8Alpha8Astc6x5x5)
+_c(Astc6x6x5RGBAUnorm, RGBAAstc6x6x5)
+_c(Astc6x6x5RGBASrgb, SRGB8Alpha8Astc6x6x5)
+_c(Astc6x6x6RGBAUnorm, RGBAAstc6x6x6)
+_c(Astc6x6x6RGBASrgb, SRGB8Alpha8Astc6x6x6)
+#else
+_s(Astc3x3x3RGBAUnorm)
+_s(Astc3x3x3RGBASrgb)
+_s(Astc4x3x3RGBAUnorm)
+_s(Astc4x3x3RGBASrgb)
+_s(Astc4x4x3RGBAUnorm)
+_s(Astc4x4x3RGBASrgb)
+_s(Astc4x4x4RGBAUnorm)
+_s(Astc4x4x4RGBASrgb)
+_s(Astc5x4x4RGBAUnorm)
+_s(Astc5x4x4RGBASrgb)
+_s(Astc5x5x4RGBAUnorm)
+_s(Astc5x5x4RGBASrgb)
+_s(Astc5x5x5RGBAUnorm)
+_s(Astc5x5x5RGBASrgb)
+_s(Astc6x5x5RGBAUnorm)
+_s(Astc6x5x5RGBASrgb)
+_s(Astc6x6x5RGBAUnorm)
+_s(Astc6x6x5RGBASrgb)
+_s(Astc6x6x6RGBAUnorm)
+_s(Astc6x6x6RGBASrgb)
+#endif
 #ifdef MAGNUM_TARGET_GLES
 _c(PvrtcRGB2bppUnorm, RGBPvrtc2bppV1)
 #ifndef MAGNUM_TARGET_WEBGL
diff --git a/src/Magnum/GL/PixelFormat.cpp b/src/Magnum/GL/PixelFormat.cpp
index 1f80b2faa..175be42bd 100644
--- a/src/Magnum/GL/PixelFormat.cpp
+++ b/src/Magnum/GL/PixelFormat.cpp
@@ -462,6 +462,28 @@ Debug& operator<<(Debug& debug, const CompressedPixelFormat value) {
         _c(SRGB8Alpha8Astc12x10)
         _c(RGBAAstc12x12)
         _c(SRGB8Alpha8Astc12x12)
+        #if defined(MAGNUM_TARGET_GLES) && !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
+        _c(RGBAAstc3x3x3)
+        _c(SRGB8Alpha8Astc3x3x3)
+        _c(RGBAAstc4x3x3)
+        _c(SRGB8Alpha8Astc4x3x3)
+        _c(RGBAAstc4x4x3)
+        _c(SRGB8Alpha8Astc4x4x3)
+        _c(RGBAAstc4x4x4)
+        _c(SRGB8Alpha8Astc4x4x4)
+        _c(RGBAAstc5x4x4)
+        _c(SRGB8Alpha8Astc5x4x4)
+        _c(RGBAAstc5x5x4)
+        _c(SRGB8Alpha8Astc5x5x4)
+        _c(RGBAAstc5x5x5)
+        _c(SRGB8Alpha8Astc5x5x5)
+        _c(RGBAAstc6x5x5)
+        _c(SRGB8Alpha8Astc6x5x5)
+        _c(RGBAAstc6x6x5)
+        _c(SRGB8Alpha8Astc6x6x5)
+        _c(RGBAAstc6x6x6)
+        _c(SRGB8Alpha8Astc6x6x6)
+        #endif
         #ifdef MAGNUM_TARGET_GLES
         _c(RGBPvrtc2bppV1)
         #ifndef MAGNUM_TARGET_WEBGL
diff --git a/src/Magnum/GL/PixelFormat.h b/src/Magnum/GL/PixelFormat.h
index c45588a82..6b269e782 100644
--- a/src/Magnum/GL/PixelFormat.h
+++ b/src/Magnum/GL/PixelFormat.h
@@ -1029,7 +1029,7 @@ enum class CompressedPixelFormat: GLenum {
     SRGBAlphaS3tcDxt5 = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT,
 
     /**
-     * ASTC compressed RGBA with 4x4 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 4x4 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1052,8 +1052,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 4x4 blocks. **Available only on 2D,
-     * 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 4x4 blocks. **Available only on
+     * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1075,7 +1075,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 5x4 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 5x4 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1098,8 +1098,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 5x4 blocks. **Available only on 2D,
-     * 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 5x4 blocks. **Available only on
+     * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1121,7 +1121,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 5x5 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 5x5 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1144,8 +1144,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 5x5 blocks. **Available only on 2D,
-     * 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 5x5 blocks. **Available only on
+     * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1167,7 +1167,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 6x5 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 6x5 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1190,8 +1190,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 6x5 blocks. **Available only on 2D,
-     * 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 6x5 blocks. **Available only on
+     * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1213,7 +1213,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 6x6 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 6x6 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1236,8 +1236,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 6x6 blocks. **Available only on 2D,
-     * 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 6x6 blocks. **Available only on
+     * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1259,7 +1259,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 8x5 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 8x5 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1282,8 +1282,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 8x5 blocks. **Available only on 2D,
-     * 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 8x5 blocks. **Available only on
+     * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1305,7 +1305,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 8x6 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 8x6 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1328,8 +1328,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 8x6 blocks. **Available only on 2D,
-     * 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 8x6 blocks. **Available only on
+     * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1351,7 +1351,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 8x8 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 8x8 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1374,8 +1374,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 8x8 blocks. **Available only on 2D,
-     * 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 8x8 blocks. **Available only on
+     * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1397,7 +1397,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 10x5 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 10x5 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1420,7 +1420,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 10x5 blocks. **Available only on
+     * 2D ASTC compressed sRGB with alpha with 10x5 blocks. **Available only on
      * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1443,7 +1443,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 10x6 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 10x6 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1466,7 +1466,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 10x6 blocks. **Available only on
+     * 2D ASTC compressed sRGB with alpha with 10x6 blocks. **Available only on
      * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1489,7 +1489,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 10x8 blocks. **Available only on 2D, 3D, 2D
+     * 2D ASTC compressed RGBA with 10x8 blocks. **Available only on 2D, 3D, 2D
      * array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1512,7 +1512,7 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 10x8 blocks. **Available only on
+     * 2D ASTC compressed sRGB with alpha with 10x8 blocks. **Available only on
      * 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
@@ -1535,8 +1535,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 10x10 blocks. **Available only on 2D, 3D, 2D
-     * array, cube map and cube map array textures.**
+     * 2D ASTC compressed RGBA with 10x10 blocks. **Available only on 2D, 3D,
+     * 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1558,8 +1558,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 10x10 blocks. **Available only on
-     * 2D, 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 10x10 blocks. **Available only
+     * on 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1581,8 +1581,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 12x10 blocks. **Available only on 2D, 3D, 2D
-     * array, cube map and cube map array textures.**
+     * 2D ASTC compressed RGBA with 12x10 blocks. **Available only on 2D, 3D,
+     * 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1604,8 +1604,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 12x10 blocks. **Available only on
-     * 2D, 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 12x10 blocks. **Available only
+     * on 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1627,8 +1627,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed RGBA with 12x12 blocks. **Available only on 2D, 3D, 2D
-     * array, cube map and cube map array textures.**
+     * 2D ASTC compressed RGBA with 12x12 blocks. **Available only on 2D, 3D,
+     * 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1650,8 +1650,8 @@ enum class CompressedPixelFormat: GLenum {
     #endif
 
     /**
-     * ASTC compressed sRGB with alpha with 12x12 blocks. **Available only on
-     * 2D, 3D, 2D array, cube map and cube map array textures.**
+     * 2D ASTC compressed sRGB with alpha with 12x12 blocks. **Available only
+     * on 2D, 3D, 2D array, cube map and cube map array textures.**
      * @requires_extension Extension @gl_extension2{KHR,texture_compression_astc_ldr,KHR_texture_compression_astc_hdr}
      * @requires_extension Extension @gl_extension{KHR,texture_compression_astc_sliced_3d}
      *      for 3D textures
@@ -1672,6 +1672,188 @@ enum class CompressedPixelFormat: GLenum {
     SRGB8Alpha8Astc12x12 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12,
     #endif
 
+    #if defined(DOXYGEN_GENERATING_OUTPUT) || (defined(MAGNUM_TARGET_GLES) && !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL))
+    /**
+     * 3D ASTC compressed RGBA with 3x3x3 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc3x3x3 = GL_COMPRESSED_RGBA_ASTC_3x3x3_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 3x3x3 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc3x3x3 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 4x3x3 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc4x3x3 = GL_COMPRESSED_RGBA_ASTC_4x3x3_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 4x3x3 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc4x3x3 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 4x4x3 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc4x4x3 = GL_COMPRESSED_RGBA_ASTC_4x4x3_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 4x4x3 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc4x4x3 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 4x4x4 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc4x4x4 = GL_COMPRESSED_RGBA_ASTC_4x4x4_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 4x4x4 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc4x4x4 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 5x4x4 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc5x4x4 = GL_COMPRESSED_RGBA_ASTC_5x4x4_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 5x4x4 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc5x4x4 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 5x5x4 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc5x5x4 = GL_COMPRESSED_RGBA_ASTC_5x5x4_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 5x5x4 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc5x5x4 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 5x5x5 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc5x5x5 = GL_COMPRESSED_RGBA_ASTC_5x5x5_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 5x5x5 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc5x5x5 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 6x5x5 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc6x5x5 = GL_COMPRESSED_RGBA_ASTC_6x5x5_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 6x5x5 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc6x5x5 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 6x6x5 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc6x6x5 = GL_COMPRESSED_RGBA_ASTC_6x6x5_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 6x6x5 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc6x6x5 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 6x6x6 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    RGBAAstc6x6x6 = GL_COMPRESSED_RGBA_ASTC_6x6x6_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 6x6x6 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    SRGB8Alpha8Astc6x6x6 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES,
+    #endif
+
     #if defined(DOXYGEN_GENERATING_OUTPUT) || defined(MAGNUM_TARGET_GLES)
     /**
      * PVRTC compressed RGB, normalized unsigned byte with 2 bits per pixel.
diff --git a/src/Magnum/GL/TextureFormat.h b/src/Magnum/GL/TextureFormat.h
index 75c5b9144..44108d552 100644
--- a/src/Magnum/GL/TextureFormat.h
+++ b/src/Magnum/GL/TextureFormat.h
@@ -2009,6 +2009,188 @@ enum class TextureFormat: GLenum {
     CompressedSRGB8Alpha8Astc12x12 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12,
     #endif
 
+    #if defined(DOXYGEN_GENERATING_OUTPUT) || (defined(MAGNUM_TARGET_GLES) && !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL))
+    /**
+     * 3D ASTC compressed RGBA with 3x3x3 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc3x3x3 = GL_COMPRESSED_RGBA_ASTC_3x3x3_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 3x3x3 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc3x3x3 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 4x3x3 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc4x3x3 = GL_COMPRESSED_RGBA_ASTC_4x3x3_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 4x3x3 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc4x3x3 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 4x4x3 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc4x4x3 = GL_COMPRESSED_RGBA_ASTC_4x4x3_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 4x4x3 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc4x4x3 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 4x4x4 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc4x4x4 = GL_COMPRESSED_RGBA_ASTC_4x4x4_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 4x4x4 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc4x4x4 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 5x4x4 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc5x4x4 = GL_COMPRESSED_RGBA_ASTC_5x4x4_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 5x4x4 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc5x4x4 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 5x5x4 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc5x5x4 = GL_COMPRESSED_RGBA_ASTC_5x5x4_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 5x5x4 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc5x5x4 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 5x5x5 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc5x5x5 = GL_COMPRESSED_RGBA_ASTC_5x5x5_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 5x5x5 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc5x5x5 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 6x5x5 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc6x5x5 = GL_COMPRESSED_RGBA_ASTC_6x5x5_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 6x5x5 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc6x5x5 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 6x6x5 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc6x6x5 = GL_COMPRESSED_RGBA_ASTC_6x6x5_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 6x6x5 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc6x6x5 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES,
+
+    /**
+     * 3D ASTC compressed RGBA with 6x6x6 blocks. **Available only on 3D
+     * textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedRGBAAstc6x6x6 = GL_COMPRESSED_RGBA_ASTC_6x6x6_OES,
+
+    /**
+     * 3D ASTC compressed sRGB with alpha with 6x6x6 blocks. **Available only
+     * on 3D textures.**
+     *
+     * @requires_gles30 Not defined on desktop OpenGL, WebGL or OpenGL ES 2.0.
+     * @requires_es_extension Extension @gl_extension{OES,texture_compression_astc}
+     */
+    CompressedSRGB8Alpha8Astc6x6x6 = GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES,
+    #endif
+
     #if defined(DOXYGEN_GENERATING_OUTPUT) || defined(MAGNUM_TARGET_GLES)
     /**
      * PVRTC compressed RGB, normalized unsigned byte with 2 bits per pixel.
diff --git a/src/Magnum/Implementation/compressedPixelFormatMapping.hpp b/src/Magnum/Implementation/compressedPixelFormatMapping.hpp
index 6ce235854..2ffba63a7 100644
--- a/src/Magnum/Implementation/compressedPixelFormatMapping.hpp
+++ b/src/Magnum/Implementation/compressedPixelFormatMapping.hpp
@@ -103,6 +103,26 @@ _c(Astc12x10RGBAUnorm, 12, 10, 1, 128)
 _c(Astc12x10RGBASrgb, 12, 10, 1, 128)
 _c(Astc12x12RGBAUnorm, 12, 12, 1, 128)
 _c(Astc12x12RGBASrgb, 12, 12, 1, 128)
+_c(Astc3x3x3RGBAUnorm, 3, 3, 3, 128)
+_c(Astc3x3x3RGBASrgb, 3, 3, 3, 128)
+_c(Astc4x3x3RGBAUnorm, 4, 3, 3, 128)
+_c(Astc4x3x3RGBASrgb, 4, 3, 3, 128)
+_c(Astc4x4x3RGBAUnorm, 4, 4, 3, 128)
+_c(Astc4x4x3RGBASrgb, 4, 4, 3, 128)
+_c(Astc4x4x4RGBAUnorm, 4, 4, 4, 128)
+_c(Astc4x4x4RGBASrgb, 4, 4, 4, 128)
+_c(Astc5x4x4RGBAUnorm, 5, 4, 4, 128)
+_c(Astc5x4x4RGBASrgb, 5, 4, 4, 128)
+_c(Astc5x5x4RGBAUnorm, 5, 5, 4, 128)
+_c(Astc5x5x4RGBASrgb, 5, 5, 4, 128)
+_c(Astc5x5x5RGBAUnorm, 5, 5, 5, 128)
+_c(Astc5x5x5RGBASrgb, 5, 5, 5, 128)
+_c(Astc6x5x5RGBAUnorm, 6, 5, 5, 128)
+_c(Astc6x5x5RGBASrgb, 6, 5, 5, 128)
+_c(Astc6x6x5RGBAUnorm, 6, 6, 5, 128)
+_c(Astc6x6x5RGBASrgb, 6, 6, 5, 128)
+_c(Astc6x6x6RGBAUnorm, 6, 6, 6, 128)
+_c(Astc6x6x6RGBASrgb, 6, 6, 6, 128)
 
 /* https://en.wikipedia.org/wiki/PVRTC */
 _c(PvrtcRGB2bppUnorm, 8, 4, 1, 64)
diff --git a/src/Magnum/PixelFormat.cpp b/src/Magnum/PixelFormat.cpp
index 0d53d4911..d9554f698 100644
--- a/src/Magnum/PixelFormat.cpp
+++ b/src/Magnum/PixelFormat.cpp
@@ -298,6 +298,26 @@ Debug& operator<<(Debug& debug, const CompressedPixelFormat value) {
         _c(Astc12x10RGBASrgb)
         _c(Astc12x12RGBAUnorm)
         _c(Astc12x12RGBASrgb)
+        _c(Astc3x3x3RGBAUnorm)
+        _c(Astc3x3x3RGBASrgb)
+        _c(Astc4x3x3RGBAUnorm)
+        _c(Astc4x3x3RGBASrgb)
+        _c(Astc4x4x3RGBAUnorm)
+        _c(Astc4x4x3RGBASrgb)
+        _c(Astc4x4x4RGBAUnorm)
+        _c(Astc4x4x4RGBASrgb)
+        _c(Astc5x4x4RGBAUnorm)
+        _c(Astc5x4x4RGBASrgb)
+        _c(Astc5x5x4RGBAUnorm)
+        _c(Astc5x5x4RGBASrgb)
+        _c(Astc5x5x5RGBAUnorm)
+        _c(Astc5x5x5RGBASrgb)
+        _c(Astc6x5x5RGBAUnorm)
+        _c(Astc6x5x5RGBASrgb)
+        _c(Astc6x6x5RGBAUnorm)
+        _c(Astc6x6x5RGBASrgb)
+        _c(Astc6x6x6RGBAUnorm)
+        _c(Astc6x6x6RGBASrgb)
         _c(PvrtcRGB2bppUnorm)
         _c(PvrtcRGB2bppSrgb)
         _c(PvrtcRGBA2bppUnorm)
diff --git a/src/Magnum/PixelFormat.h b/src/Magnum/PixelFormat.h
index 4a031cd37..d02642e61 100644
--- a/src/Magnum/PixelFormat.h
+++ b/src/Magnum/PixelFormat.h
@@ -1090,7 +1090,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Etc2RGBA8Srgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 4x4 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc4x4,
@@ -1104,7 +1104,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc4x4RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 4x4
      * blocks.
      *
@@ -1118,7 +1118,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc4x4RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 5x4 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc5x4,
@@ -1132,7 +1132,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc5x4RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 5x4
      * blocks.
      *
@@ -1146,7 +1146,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc5x4RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 5x5 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc5x5,
@@ -1160,7 +1160,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc5x5RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 5x5
      * blocks.
      *
@@ -1174,7 +1174,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc5x5RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 6x5 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc6x5,
@@ -1188,7 +1188,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc6x5RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 6x5
      * blocks.
      *
@@ -1202,7 +1202,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc6x5RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 6x6 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc6x6,
@@ -1216,7 +1216,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc6x6RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 6x6
      * blocks.
      *
@@ -1230,7 +1230,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc6x6RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 8x5 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc8x5,
@@ -1244,7 +1244,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc8x5RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 8x5
      * blocks.
      *
@@ -1258,7 +1258,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc8x5RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 8x6 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc8x6,
@@ -1272,7 +1272,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc8x6RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 8x6
      * blocks.
      *
@@ -1286,7 +1286,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc8x6RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 8x8 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc8x8,
@@ -1300,7 +1300,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc8x8RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 8x8
      * blocks.
      *
@@ -1314,7 +1314,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc8x8RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 10x5 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc10x5,
@@ -1328,7 +1328,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc10x5RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 10x5
      * blocks.
      *
@@ -1342,7 +1342,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc10x5RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 10x6 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc10x6,
@@ -1356,7 +1356,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc10x6RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 10x6
      * blocks.
      *
@@ -1370,7 +1370,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc10x6RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 10x8 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc10x8,
@@ -1384,7 +1384,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc10x8RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 10x8
      * blocks.
      *
@@ -1398,7 +1398,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc10x8RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 10x10 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc10x10,
@@ -1412,7 +1412,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc10x10RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 10x10
      * blocks.
      *
@@ -1426,7 +1426,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc10x10RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 12x10 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc12x10,
@@ -1440,7 +1440,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc12x10RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 12x10
      * blocks.
      *
@@ -1454,7 +1454,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc12x10RGBASrgb,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed RGBA, normalized unsigned byte with 12x12 blocks.
      *
      * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc12x12,
@@ -1468,7 +1468,7 @@ enum class CompressedPixelFormat: UnsignedInt {
     Astc12x12RGBAUnorm,
 
     /**
-     * [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * 2D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
      * compressed sRGB + linear alpha, normalized unsigned byte with 12x12
      * blocks.
      *
@@ -1481,6 +1481,256 @@ enum class CompressedPixelFormat: UnsignedInt {
      */
     Astc12x12RGBASrgb,
 
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 3x3x3 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc3x3x3,
+     * @ref GL::TextureFormat::CompressedRGBAAstc3x3x3;
+     * and @def_vk_keyword{FORMAT_ASTC_3x3x3_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc3x3x3RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 3x3x3
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc3x3x3,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc3x3x3;
+     * and @def_vk_keyword{FORMAT_ASTC_3x3x3_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc3x3x3RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 4x3x3 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc4x3x3,
+     * @ref GL::TextureFormat::CompressedRGBAAstc4x3x3;
+     * and @def_vk_keyword{FORMAT_ASTC_4x3x3_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc4x3x3RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 4x3x3
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc4x3x3,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc4x3x3;
+     * and @def_vk_keyword{FORMAT_ASTC_4x3x3_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc4x3x3RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 4x4x3 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc4x4x3,
+     * @ref GL::TextureFormat::CompressedRGBAAstc4x4x3;
+     * and @def_vk_keyword{FORMAT_ASTC_4x4x3_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc4x4x3RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 4x4x3
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc4x4x3,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc4x4x3;
+     * and @def_vk_keyword{FORMAT_ASTC_4x4x3_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc4x4x3RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 4x4x4 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc4x4x4,
+     * @ref GL::TextureFormat::CompressedRGBAAstc4x4x4;
+     * and @def_vk_keyword{FORMAT_ASTC_4x4x4_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc4x4x4RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 4x4x4
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc4x4x4,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc4x4x4;
+     * and @def_vk_keyword{FORMAT_ASTC_4x4x4_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc4x4x4RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 5x4x4 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc5x4x4,
+     * @ref GL::TextureFormat::CompressedRGBAAstc5x4x4;
+     * and @def_vk_keyword{FORMAT_ASTC_5x4x4_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc5x4x4RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 5x4x4
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc5x4x4,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc5x4x4;
+     * and @def_vk_keyword{FORMAT_ASTC_5x4x4_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc5x4x4RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 5x5x4 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc5x5x4,
+     * @ref GL::TextureFormat::CompressedRGBAAstc5x5x4;
+     * and @def_vk_keyword{FORMAT_ASTC_5x5x4_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc5x5x4RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 5x5x4
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc5x5x4,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc5x5x4;
+     * and @def_vk_keyword{FORMAT_ASTC_5x5x4_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc5x5x4RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 5x5x5 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc5x5x5,
+     * @ref GL::TextureFormat::CompressedRGBAAstc5x5x5;
+     * and @def_vk_keyword{FORMAT_ASTC_5x5x5_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc5x5x5RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 5x5x5
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc5x5x5,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc5x5x5;
+     * and @def_vk_keyword{FORMAT_ASTC_5x5x5_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc5x5x5RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 6x5x5 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc6x5x5,
+     * @ref GL::TextureFormat::CompressedRGBAAstc6x5x5;
+     * and @def_vk_keyword{FORMAT_ASTC_6x5x5_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc6x5x5RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 6x5x5
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc6x5x5,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc6x5x5;
+     * and @def_vk_keyword{FORMAT_ASTC_6x5x5_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc6x5x5RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 6x6x5 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc6x6x5,
+     * @ref GL::TextureFormat::CompressedRGBAAstc6x6x5;
+     * and @def_vk_keyword{FORMAT_ASTC_6x6x5_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc6x6x5RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 6x6x5
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc6x6x5,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc6x6x5;
+     * and @def_vk_keyword{FORMAT_ASTC_6x6x5_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc6x6x5RGBASrgb,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed RGBA, normalized unsigned byte with 6x6x6 blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::RGBAAstc6x6x6,
+     * @ref GL::TextureFormat::CompressedRGBAAstc6x6x6;
+     * and @def_vk_keyword{FORMAT_ASTC_6x6x6_UNORM_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc6x6x6RGBAUnorm,
+
+    /**
+     * 3D [ASTC](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression)
+     * compressed sRGB + linear alpha, normalized unsigned byte with 6x6x6
+     * blocks.
+     *
+     * Corresponds to @ref GL::CompressedPixelFormat::SRGB8Alpha8Astc6x6x6,
+     * @ref GL::TextureFormat::CompressedSRGB8Alpha8Astc6x6x6;
+     * and @def_vk_keyword{FORMAT_ASTC_6x6x6_SRGB_BLOCK_EXT,Format} (not a
+     * part of the spec yet, [only defined in KTX](https://github.com/KhronosGroup/KTX-Specification/pull/97/files)).
+     * No equivalent in Metal or D3D.
+     */
+    Astc6x6x6RGBASrgb,
+
     /* See https://github.com/KhronosGroup/Vulkan-Docs/issues/512#issuecomment-307768667
        for Vulkan mapping. Ugh. */
 
diff --git a/src/Magnum/Vk/Implementation/compressedFormatMapping.hpp b/src/Magnum/Vk/Implementation/compressedFormatMapping.hpp
index b967f6136..f2dc65e84 100644
--- a/src/Magnum/Vk/Implementation/compressedFormatMapping.hpp
+++ b/src/Magnum/Vk/Implementation/compressedFormatMapping.hpp
@@ -79,6 +79,28 @@ _c(Astc12x10RGBAUnorm, ASTC_12x10_UNORM_BLOCK)
 _c(Astc12x10RGBASrgb, ASTC_12x10_SRGB_BLOCK)
 _c(Astc12x12RGBAUnorm, ASTC_12x12_UNORM_BLOCK)
 _c(Astc12x12RGBASrgb, ASTC_12x12_SRGB_BLOCK)
+
+/* https://github.com/KhronosGroup/KTX-Specification/pull/97 */
+_s(Astc3x3x3RGBAUnorm) //, ASTC_3x3x3_UNORM_BLOCK)
+_s(Astc3x3x3RGBASrgb) //, ASTC_3x3x3_SRGB_BLOCK)
+_s(Astc4x3x3RGBAUnorm) //, ASTC_4x3x3_UNORM_BLOCK)
+_s(Astc4x3x3RGBASrgb) //, ASTC_4x3x3_SRGB_BLOCK)
+_s(Astc4x4x3RGBAUnorm) //, ASTC_4x4x3_UNORM_BLOCK)
+_s(Astc4x4x3RGBASrgb) //, ASTC_4x4x3_SRGB_BLOCK)
+_s(Astc4x4x4RGBAUnorm) //, ASTC_4x4x4_UNORM_BLOCK)
+_s(Astc4x4x4RGBASrgb) //, ASTC_4x4x4_SRGB_BLOCK)
+_s(Astc5x4x4RGBAUnorm) //, ASTC_5x4x4_UNORM_BLOCK)
+_s(Astc5x4x4RGBASrgb) //, ASTC_5x4x4_SRGB_BLOCK)
+_s(Astc5x5x4RGBAUnorm) //, ASTC_5x5x4_UNORM_BLOCK)
+_s(Astc5x5x4RGBASrgb) //, ASTC_5x5x4_SRGB_BLOCK)
+_s(Astc5x5x5RGBAUnorm) //, ASTC_5x5x5_UNORM_BLOCK)
+_s(Astc5x5x5RGBASrgb) //, ASTC_5x5x5_SRGB_BLOCK)
+_s(Astc6x5x5RGBAUnorm) //, ASTC_6x5x5_UNORM_BLOCK)
+_s(Astc6x5x5RGBASrgb) //, ASTC_6x5x5_SRGB_BLOCK)
+_s(Astc6x6x5RGBAUnorm) //, ASTC_6x6x5_UNORM_BLOCK)
+_s(Astc6x6x5RGBASrgb) //, ASTC_6x6x5_SRGB_BLOCK)
+_s(Astc6x6x6RGBAUnorm) //, ASTC_6x6x6_UNORM_BLOCK)
+_s(Astc6x6x6RGBASrgb) //, ASTC_6x6x6_SRGB_BLOCK)
 /* https://github.com/KhronosGroup/Vulkan-Docs/issues/512 */
 _c(PvrtcRGB2bppUnorm, PVRTC1_2BPP_UNORM_BLOCK_IMG)
 _c(PvrtcRGB2bppSrgb, PVRTC1_2BPP_SRGB_BLOCK_IMG)
diff --git a/src/Magnum/Vk/Test/EnumsTest.cpp b/src/Magnum/Vk/Test/EnumsTest.cpp
index 73dabf523..081f22e2b 100644
--- a/src/Magnum/Vk/Test/EnumsTest.cpp
+++ b/src/Magnum/Vk/Test/EnumsTest.cpp
@@ -323,16 +323,12 @@ void EnumsTest::mapVkFormatCompressedImplementationSpecific() {
 }
 
 void EnumsTest::mapVkFormatCompressedUnsupported() {
-    #if 1
-    CORRADE_SKIP("All compressed pixel formats are currently supported.");
-    #else
-    CORRADE_VERIFY(!hasVkFormat(Magnum::CompressedPixelFormat::Bc1RGBAUnorm));
+    CORRADE_VERIFY(!hasVkFormat(Magnum::CompressedPixelFormat::Astc3x3x3RGBAUnorm));
 
     std::ostringstream out;
     Error redirectError{&out};
-    vkFormat(Magnum::CompressedPixelFormat::Bc1RGBAUnorm);
-    CORRADE_COMPARE(out.str(), "Vk::vkFormat(): unsupported format CompressedPixelFormat::Bc1RGBAUnorm\n");
-    #endif
+    vkFormat(Magnum::CompressedPixelFormat::Astc3x3x3RGBAUnorm);
+    CORRADE_COMPARE(out.str(), "Vk::vkFormat(): unsupported format CompressedPixelFormat::Astc3x3x3RGBAUnorm\n");
 }
 
 void EnumsTest::mapVkFormatCompressedInvalid() {
diff --git a/src/MagnumExternal/OpenGL/GLES3/extensions.txt b/src/MagnumExternal/OpenGL/GLES3/extensions.txt
index c8ec51765..a43b7fd19 100644
--- a/src/MagnumExternal/OpenGL/GLES3/extensions.txt
+++ b/src/MagnumExternal/OpenGL/GLES3/extensions.txt
@@ -22,6 +22,9 @@ extension KHR_debug                                 optional
 extension KHR_blend_equation_advanced               optional
 extension KHR_robustness                            optional
 extension KHR_robust_buffer_access_behavior         optional
+# unfortunately this adds back the KHR-suffixed ASTC enums I was so desperately
+# trying to get rid of
+extension OES_texture_compression_astc              optional
 extension OES_sample_shading                        optional
 extension OES_sample_variables                      optional
 extension OES_shader_image_atomic                   optional
diff --git a/src/MagnumExternal/OpenGL/GLES3/flextGL.h b/src/MagnumExternal/OpenGL/GLES3/flextGL.h
index 6ac68c17c..a55138573 100644
--- a/src/MagnumExternal/OpenGL/GLES3/flextGL.h
+++ b/src/MagnumExternal/OpenGL/GLES3/flextGL.h
@@ -1377,6 +1377,57 @@ typedef void (APIENTRY *GLDEBUGPROCKHR)(GLenum source,GLenum type,GLuint id,GLen
 #define GL_NO_RESET_NOTIFICATION_KHR 0x8261
 #define GL_CONTEXT_LOST_KHR 0x0507
 
+/* GL_OES_texture_compression_astc */
+
+#define GL_COMPRESSED_RGBA_ASTC_4x4_KHR 0x93B0
+#define GL_COMPRESSED_RGBA_ASTC_5x4_KHR 0x93B1
+#define GL_COMPRESSED_RGBA_ASTC_5x5_KHR 0x93B2
+#define GL_COMPRESSED_RGBA_ASTC_6x5_KHR 0x93B3
+#define GL_COMPRESSED_RGBA_ASTC_6x6_KHR 0x93B4
+#define GL_COMPRESSED_RGBA_ASTC_8x5_KHR 0x93B5
+#define GL_COMPRESSED_RGBA_ASTC_8x6_KHR 0x93B6
+#define GL_COMPRESSED_RGBA_ASTC_8x8_KHR 0x93B7
+#define GL_COMPRESSED_RGBA_ASTC_10x5_KHR 0x93B8
+#define GL_COMPRESSED_RGBA_ASTC_10x6_KHR 0x93B9
+#define GL_COMPRESSED_RGBA_ASTC_10x8_KHR 0x93BA
+#define GL_COMPRESSED_RGBA_ASTC_10x10_KHR 0x93BB
+#define GL_COMPRESSED_RGBA_ASTC_12x10_KHR 0x93BC
+#define GL_COMPRESSED_RGBA_ASTC_12x12_KHR 0x93BD
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR 0x93D0
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR 0x93D1
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR 0x93D2
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR 0x93D3
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR 0x93D4
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR 0x93D5
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR 0x93D6
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR 0x93D7
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR 0x93D8
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR 0x93D9
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR 0x93DA
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR 0x93DB
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR 0x93DC
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR 0x93DD
+#define GL_COMPRESSED_RGBA_ASTC_3x3x3_OES 0x93C0
+#define GL_COMPRESSED_RGBA_ASTC_4x3x3_OES 0x93C1
+#define GL_COMPRESSED_RGBA_ASTC_4x4x3_OES 0x93C2
+#define GL_COMPRESSED_RGBA_ASTC_4x4x4_OES 0x93C3
+#define GL_COMPRESSED_RGBA_ASTC_5x4x4_OES 0x93C4
+#define GL_COMPRESSED_RGBA_ASTC_5x5x4_OES 0x93C5
+#define GL_COMPRESSED_RGBA_ASTC_5x5x5_OES 0x93C6
+#define GL_COMPRESSED_RGBA_ASTC_6x5x5_OES 0x93C7
+#define GL_COMPRESSED_RGBA_ASTC_6x6x5_OES 0x93C8
+#define GL_COMPRESSED_RGBA_ASTC_6x6x6_OES 0x93C9
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES 0x93E0
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES 0x93E1
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES 0x93E2
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES 0x93E3
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES 0x93E4
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES 0x93E5
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES 0x93E6
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES 0x93E7
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES 0x93E8
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES 0x93E9
+
 /* GL_OES_sample_shading */
 
 #define GL_SAMPLE_SHADING_OES 0x8C36
diff --git a/src/MagnumExternal/OpenGL/GLES3/flextGLWindowsDesktop.h b/src/MagnumExternal/OpenGL/GLES3/flextGLWindowsDesktop.h
index 950d4c43b..de3dd34ea 100644
--- a/src/MagnumExternal/OpenGL/GLES3/flextGLWindowsDesktop.h
+++ b/src/MagnumExternal/OpenGL/GLES3/flextGLWindowsDesktop.h
@@ -1369,6 +1369,57 @@ typedef void (APIENTRY *GLDEBUGPROCKHR)(GLenum source,GLenum type,GLuint id,GLen
 #define GL_NO_RESET_NOTIFICATION_KHR 0x8261
 #define GL_CONTEXT_LOST_KHR 0x0507
 
+/* GL_OES_texture_compression_astc */
+
+#define GL_COMPRESSED_RGBA_ASTC_4x4_KHR 0x93B0
+#define GL_COMPRESSED_RGBA_ASTC_5x4_KHR 0x93B1
+#define GL_COMPRESSED_RGBA_ASTC_5x5_KHR 0x93B2
+#define GL_COMPRESSED_RGBA_ASTC_6x5_KHR 0x93B3
+#define GL_COMPRESSED_RGBA_ASTC_6x6_KHR 0x93B4
+#define GL_COMPRESSED_RGBA_ASTC_8x5_KHR 0x93B5
+#define GL_COMPRESSED_RGBA_ASTC_8x6_KHR 0x93B6
+#define GL_COMPRESSED_RGBA_ASTC_8x8_KHR 0x93B7
+#define GL_COMPRESSED_RGBA_ASTC_10x5_KHR 0x93B8
+#define GL_COMPRESSED_RGBA_ASTC_10x6_KHR 0x93B9
+#define GL_COMPRESSED_RGBA_ASTC_10x8_KHR 0x93BA
+#define GL_COMPRESSED_RGBA_ASTC_10x10_KHR 0x93BB
+#define GL_COMPRESSED_RGBA_ASTC_12x10_KHR 0x93BC
+#define GL_COMPRESSED_RGBA_ASTC_12x12_KHR 0x93BD
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR 0x93D0
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR 0x93D1
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR 0x93D2
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR 0x93D3
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR 0x93D4
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR 0x93D5
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR 0x93D6
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR 0x93D7
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR 0x93D8
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR 0x93D9
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR 0x93DA
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR 0x93DB
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR 0x93DC
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR 0x93DD
+#define GL_COMPRESSED_RGBA_ASTC_3x3x3_OES 0x93C0
+#define GL_COMPRESSED_RGBA_ASTC_4x3x3_OES 0x93C1
+#define GL_COMPRESSED_RGBA_ASTC_4x4x3_OES 0x93C2
+#define GL_COMPRESSED_RGBA_ASTC_4x4x4_OES 0x93C3
+#define GL_COMPRESSED_RGBA_ASTC_5x4x4_OES 0x93C4
+#define GL_COMPRESSED_RGBA_ASTC_5x5x4_OES 0x93C5
+#define GL_COMPRESSED_RGBA_ASTC_5x5x5_OES 0x93C6
+#define GL_COMPRESSED_RGBA_ASTC_6x5x5_OES 0x93C7
+#define GL_COMPRESSED_RGBA_ASTC_6x6x5_OES 0x93C8
+#define GL_COMPRESSED_RGBA_ASTC_6x6x6_OES 0x93C9
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES 0x93E0
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES 0x93E1
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES 0x93E2
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES 0x93E3
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES 0x93E4
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES 0x93E5
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES 0x93E6
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES 0x93E7
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES 0x93E8
+#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES 0x93E9
+
 /* GL_OES_sample_shading */
 
 #define GL_SAMPLE_SHADING_OES 0x8C36