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godot/thirdparty/libktx/lib/gl_format.h
acazuc a00cf02241 Add support for KTX & KTX2 image format 
Add support glTF KHR_texture_basisu extension
2023-08-19 10:27:29 +02:00

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/*
================================================================================================
Description : OpenGL formats/types and properties.
Author : J.M.P. van Waveren
Date : 07/17/2016
Language : C99
Format : Real tabs with the tab size equal to 4 spaces.
Copyright : Copyright (c) 2016 Oculus VR, LLC. All Rights reserved.
LICENSE
=======
Copyright 2016 Oculus VR, LLC.
SPDX-License-Identifier: Apache-2.0
DESCRIPTION
===========
This header stores the OpenGL formats/types and two simple routines
to derive the format/type from an internal format. These routines
are useful to verify the data in a KTX container files. The OpenGL
constants are generally useful to convert files like KTX and glTF
to different graphics APIs.
This header stores the OpenGL formats/types that are used as parameters
to the following OpenGL functions:
void glTexImage2D( GLenum target, GLint level, GLint internalFormat,
GLsizei width, GLsizei height, GLint border,
GLenum format, GLenum type, const GLvoid * data );
void glTexImage3D( GLenum target, GLint level, GLint internalFormat,
GLsizei width, GLsizei height, GLsizei depth, GLint border,
GLenum format, GLenum type, const GLvoid * data );
void glCompressedTexImage2D( GLenum target, GLint level, GLenum internalformat,
GLsizei width, GLsizei height, GLint border,
GLsizei imageSize, const GLvoid * data );
void glCompressedTexImage3D( GLenum target, GLint level, GLenum internalformat,
GLsizei width, GLsizei height, GLsizei depth, GLint border,
GLsizei imageSize, const GLvoid * data );
void glTexStorage2D( GLenum target, GLsizei levels, GLenum internalformat,
GLsizei width, GLsizei height );
void glTexStorage3D( GLenum target, GLsizei levels, GLenum internalformat,
GLsizei width, GLsizei height, GLsizei depth );
void glVertexAttribPointer( GLuint index, GLint size, GLenum type, GLboolean normalized,
GLsizei stride, const GLvoid * pointer);
IMPLEMENTATION
==============
This file does not include OpenGL / OpenGL ES headers because:
1. Including OpenGL / OpenGL ES headers is platform dependent and
may require a separate installation of an OpenGL SDK.
2. The OpenGL format/type constants are the same between extensions and core.
3. The OpenGL format/type constants are the same between OpenGL and OpenGL ES.
4. The OpenGL constants in this header are also used to derive Vulkan formats
from the OpenGL formats/types stored in files like KTX and glTF. These file
formats may use OpenGL formats/types that are not supported by the OpenGL
implementation on the platform but are supported by the Vulkan implementation.
ENTRY POINTS
============
static inline GLenum glGetFormatFromInternalFormat( const GLenum internalFormat );
static inline GLenum glGetTypeFromInternalFormat( const GLenum internalFormat );
static inline void glGetFormatSize( const GLenum internalFormat, GlFormatSize * pFormatSize );
static inline unsigned int glGetTypeSizeFromType( const GLenum type );
static inline GLenum glGetInternalFormatFromVkFormat ( VkFormat format );
MODIFICATIONS for use in libktx
===============================
2018.3.23 Added glGetTypeSizeFromType. Mark Callow, Edgewise Consulting.
2019.3.09 #if 0 around GL type declarations. 〃
2019.5.30 Use common ktxFormatSize to return results. 〃
2019.5.30 Return blockSizeInBits 0 for default case of glGetFormatSize. 〃
2019.5.30 Added glGetInternalFormatFromVkFormat. 〃
================================================================================================
*/
#if !defined( GL_FORMAT_H )
#define GL_FORMAT_H
#include <assert.h>
#include "formatsize.h"
#include "vkformat_enum.h"
#if defined(_WIN32) && !defined(__MINGW32__)
#ifndef NOMINMAX
#define NOMINMAX
#endif
#ifndef __cplusplus
#undef inline
#define inline __inline
#endif // __cplusplus
#endif
/*
===========================================================================
Avoid warnings or even errors when using strict C99. "Redefinition of
(type) is a C11 feature." All includers in libktx also include ktx.h where
they are also defined.
===========================================================================
*/
#if 0
typedef unsigned int GLenum;
typedef unsigned char GLboolean;
typedef unsigned int GLuint;
#endif
#if !defined( GL_INVALID_VALUE )
#define GL_INVALID_VALUE 0x0501
#endif
/*
================================================================================================================================
Format to glTexImage2D and glTexImage3D.
================================================================================================================================
*/
#if !defined( GL_RED )
#define GL_RED 0x1903 // same as GL_RED_EXT
#endif
#if !defined( GL_GREEN )
#define GL_GREEN 0x1904 // deprecated
#endif
#if !defined( GL_BLUE )
#define GL_BLUE 0x1905 // deprecated
#endif
#if !defined( GL_ALPHA )
#define GL_ALPHA 0x1906 // deprecated
#endif
#if !defined( GL_LUMINANCE )
#define GL_LUMINANCE 0x1909 // deprecated
#endif
#if !defined( GL_SLUMINANCE )
#define GL_SLUMINANCE 0x8C46 // deprecated, same as GL_SLUMINANCE_EXT
#endif
#if !defined( GL_LUMINANCE_ALPHA )
#define GL_LUMINANCE_ALPHA 0x190A // deprecated
#endif
#if !defined( GL_SLUMINANCE_ALPHA )
#define GL_SLUMINANCE_ALPHA 0x8C44 // deprecated, same as GL_SLUMINANCE_ALPHA_EXT
#endif
#if !defined( GL_INTENSITY )
#define GL_INTENSITY 0x8049 // deprecated, same as GL_INTENSITY_EXT
#endif
#if !defined( GL_RG )
#define GL_RG 0x8227 // same as GL_RG_EXT
#endif
#if !defined( GL_RGB )
#define GL_RGB 0x1907
#endif
#if !defined( GL_BGR )
#define GL_BGR 0x80E0 // same as GL_BGR_EXT
#endif
#if !defined( GL_RGBA )
#define GL_RGBA 0x1908
#endif
#if !defined( GL_BGRA )
#define GL_BGRA 0x80E1 // same as GL_BGRA_EXT
#endif
#if !defined( GL_RED_INTEGER )
#define GL_RED_INTEGER 0x8D94 // same as GL_RED_INTEGER_EXT
#endif
#if !defined( GL_GREEN_INTEGER )
#define GL_GREEN_INTEGER 0x8D95 // deprecated, same as GL_GREEN_INTEGER_EXT
#endif
#if !defined( GL_BLUE_INTEGER )
#define GL_BLUE_INTEGER 0x8D96 // deprecated, same as GL_BLUE_INTEGER_EXT
#endif
#if !defined( GL_ALPHA_INTEGER )
#define GL_ALPHA_INTEGER 0x8D97 // deprecated, same as GL_ALPHA_INTEGER_EXT
#endif
#if !defined( GL_LUMINANCE_INTEGER )
#define GL_LUMINANCE_INTEGER 0x8D9C // deprecated, same as GL_LUMINANCE_INTEGER_EXT
#endif
#if !defined( GL_LUMINANCE_ALPHA_INTEGER )
#define GL_LUMINANCE_ALPHA_INTEGER 0x8D9D // deprecated, same as GL_LUMINANCE_ALPHA_INTEGER_EXT
#endif
#if !defined( GL_RG_INTEGER )
#define GL_RG_INTEGER 0x8228 // same as GL_RG_INTEGER_EXT
#endif
#if !defined( GL_RGB_INTEGER )
#define GL_RGB_INTEGER 0x8D98 // same as GL_RGB_INTEGER_EXT
#endif
#if !defined( GL_BGR_INTEGER )
#define GL_BGR_INTEGER 0x8D9A // same as GL_BGR_INTEGER_EXT
#endif
#if !defined( GL_RGBA_INTEGER )
#define GL_RGBA_INTEGER 0x8D99 // same as GL_RGBA_INTEGER_EXT
#endif
#if !defined( GL_BGRA_INTEGER )
#define GL_BGRA_INTEGER 0x8D9B // same as GL_BGRA_INTEGER_EXT
#endif
#if !defined( GL_COLOR_INDEX )
#define GL_COLOR_INDEX 0x1900 // deprecated
#endif
#if !defined( GL_STENCIL_INDEX )
#define GL_STENCIL_INDEX 0x1901
#endif
#if !defined( GL_DEPTH_COMPONENT )
#define GL_DEPTH_COMPONENT 0x1902
#endif
#if !defined( GL_DEPTH_STENCIL )
#define GL_DEPTH_STENCIL 0x84F9 // same as GL_DEPTH_STENCIL_NV and GL_DEPTH_STENCIL_EXT and GL_DEPTH_STENCIL_OES
#endif
/*
================================================================================================================================
Type to glTexImage2D, glTexImage3D and glVertexAttribPointer.
================================================================================================================================
*/
#if !defined( GL_BYTE )
#define GL_BYTE 0x1400
#endif
#if !defined( GL_UNSIGNED_BYTE )
#define GL_UNSIGNED_BYTE 0x1401
#endif
#if !defined( GL_SHORT )
#define GL_SHORT 0x1402
#endif
#if !defined( GL_UNSIGNED_SHORT )
#define GL_UNSIGNED_SHORT 0x1403
#endif
#if !defined( GL_INT )
#define GL_INT 0x1404
#endif
#if !defined( GL_UNSIGNED_INT )
#define GL_UNSIGNED_INT 0x1405
#endif
#if !defined( GL_INT64 )
#define GL_INT64 0x140E // same as GL_INT64_NV and GL_INT64_ARB
#endif
#if !defined( GL_UNSIGNED_INT64 )
#define GL_UNSIGNED_INT64 0x140F // same as GL_UNSIGNED_INT64_NV and GL_UNSIGNED_INT64_ARB
#endif
#if !defined( GL_HALF_FLOAT )
#define GL_HALF_FLOAT 0x140B // same as GL_HALF_FLOAT_NV and GL_HALF_FLOAT_ARB
#endif
#if !defined( GL_HALF_FLOAT_OES )
#define GL_HALF_FLOAT_OES 0x8D61 // Note that this different from GL_HALF_FLOAT.
#endif
#if !defined( GL_FLOAT )
#define GL_FLOAT 0x1406
#endif
#if !defined( GL_DOUBLE )
#define GL_DOUBLE 0x140A // same as GL_DOUBLE_EXT
#endif
#if !defined( GL_UNSIGNED_BYTE_3_3_2 )
#define GL_UNSIGNED_BYTE_3_3_2 0x8032 // same as GL_UNSIGNED_BYTE_3_3_2_EXT
#endif
#if !defined( GL_UNSIGNED_BYTE_2_3_3_REV )
#define GL_UNSIGNED_BYTE_2_3_3_REV 0x8362 // same as GL_UNSIGNED_BYTE_2_3_3_REV_EXT
#endif
#if !defined( GL_UNSIGNED_SHORT_5_6_5 )
#define GL_UNSIGNED_SHORT_5_6_5 0x8363 // same as GL_UNSIGNED_SHORT_5_6_5_EXT
#endif
#if !defined( GL_UNSIGNED_SHORT_5_6_5_REV )
#define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364 // same as GL_UNSIGNED_SHORT_5_6_5_REV_EXT
#endif
#if !defined( GL_UNSIGNED_SHORT_4_4_4_4 )
#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033 // same as GL_UNSIGNED_SHORT_4_4_4_4_EXT
#endif
#if !defined( GL_UNSIGNED_SHORT_4_4_4_4_REV )
#define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365 // same as GL_UNSIGNED_SHORT_4_4_4_4_REV_IMG and GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT
#endif
#if !defined( GL_UNSIGNED_SHORT_5_5_5_1 )
#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034 // same as GL_UNSIGNED_SHORT_5_5_5_1_EXT
#endif
#if !defined( GL_UNSIGNED_SHORT_1_5_5_5_REV )
#define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366 // same as GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT
#endif
#if !defined( GL_UNSIGNED_INT_8_8_8_8 )
#define GL_UNSIGNED_INT_8_8_8_8 0x8035 // same as GL_UNSIGNED_INT_8_8_8_8_EXT
#endif
#if !defined( GL_UNSIGNED_INT_8_8_8_8_REV )
#define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367 // same as GL_UNSIGNED_INT_8_8_8_8_REV_EXT
#endif
#if !defined( GL_UNSIGNED_INT_10_10_10_2 )
#define GL_UNSIGNED_INT_10_10_10_2 0x8036 // same as GL_UNSIGNED_INT_10_10_10_2_EXT
#endif
#if !defined( GL_UNSIGNED_INT_2_10_10_10_REV )
#define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368 // same as GL_UNSIGNED_INT_2_10_10_10_REV_EXT
#endif
#if !defined( GL_UNSIGNED_INT_10F_11F_11F_REV )
#define GL_UNSIGNED_INT_10F_11F_11F_REV 0x8C3B // same as GL_UNSIGNED_INT_10F_11F_11F_REV_EXT
#endif
#if !defined( GL_UNSIGNED_INT_5_9_9_9_REV )
#define GL_UNSIGNED_INT_5_9_9_9_REV 0x8C3E // same as GL_UNSIGNED_INT_5_9_9_9_REV_EXT
#endif
#if !defined( GL_UNSIGNED_INT_24_8 )
#define GL_UNSIGNED_INT_24_8 0x84FA // same as GL_UNSIGNED_INT_24_8_NV and GL_UNSIGNED_INT_24_8_EXT and GL_UNSIGNED_INT_24_8_OES
#endif
#if !defined( GL_FLOAT_32_UNSIGNED_INT_24_8_REV )
#define GL_FLOAT_32_UNSIGNED_INT_24_8_REV 0x8DAD // same as GL_FLOAT_32_UNSIGNED_INT_24_8_REV_NV and GL_FLOAT_32_UNSIGNED_INT_24_8_REV_ARB
#endif
/*
================================================================================================================================
Internal format to glTexImage2D, glTexImage3D, glCompressedTexImage2D, glCompressedTexImage3D, glTexStorage2D, glTexStorage3D
================================================================================================================================
*/
//
// 8 bits per component
//
#if !defined( GL_R8 )
#define GL_R8 0x8229 // same as GL_R8_EXT
#endif
#if !defined( GL_RG8 )
#define GL_RG8 0x822B // same as GL_RG8_EXT
#endif
#if !defined( GL_RGB8 )
#define GL_RGB8 0x8051 // same as GL_RGB8_EXT and GL_RGB8_OES
#endif
#if !defined( GL_RGBA8 )
#define GL_RGBA8 0x8058 // same as GL_RGBA8_EXT and GL_RGBA8_OES
#endif
#if !defined( GL_R8_SNORM )
#define GL_R8_SNORM 0x8F94
#endif
#if !defined( GL_RG8_SNORM )
#define GL_RG8_SNORM 0x8F95
#endif
#if !defined( GL_RGB8_SNORM )
#define GL_RGB8_SNORM 0x8F96
#endif
#if !defined( GL_RGBA8_SNORM )
#define GL_RGBA8_SNORM 0x8F97
#endif
#if !defined( GL_R8UI )
#define GL_R8UI 0x8232
#endif
#if !defined( GL_RG8UI )
#define GL_RG8UI 0x8238
#endif
#if !defined( GL_RGB8UI )
#define GL_RGB8UI 0x8D7D // same as GL_RGB8UI_EXT
#endif
#if !defined( GL_RGBA8UI )
#define GL_RGBA8UI 0x8D7C // same as GL_RGBA8UI_EXT
#endif
#if !defined( GL_R8I )
#define GL_R8I 0x8231
#endif
#if !defined( GL_RG8I )
#define GL_RG8I 0x8237
#endif
#if !defined( GL_RGB8I )
#define GL_RGB8I 0x8D8F // same as GL_RGB8I_EXT
#endif
#if !defined( GL_RGBA8I )
#define GL_RGBA8I 0x8D8E // same as GL_RGBA8I_EXT
#endif
#if !defined( GL_SR8 )
#define GL_SR8 0x8FBD // same as GL_SR8_EXT
#endif
#if !defined( GL_SRG8 )
#define GL_SRG8 0x8FBE // same as GL_SRG8_EXT
#endif
#if !defined( GL_SRGB8 )
#define GL_SRGB8 0x8C41 // same as GL_SRGB8_EXT
#endif
#if !defined( GL_SRGB8_ALPHA8 )
#define GL_SRGB8_ALPHA8 0x8C43 // same as GL_SRGB8_ALPHA8_EXT
#endif
//
// 16 bits per component
//
#if !defined( GL_R16 )
#define GL_R16 0x822A // same as GL_R16_EXT
#endif
#if !defined( GL_RG16 )
#define GL_RG16 0x822C // same as GL_RG16_EXT
#endif
#if !defined( GL_RGB16 )
#define GL_RGB16 0x8054 // same as GL_RGB16_EXT
#endif
#if !defined( GL_RGBA16 )
#define GL_RGBA16 0x805B // same as GL_RGBA16_EXT
#endif
#if !defined( GL_R16_SNORM )
#define GL_R16_SNORM 0x8F98 // same as GL_R16_SNORM_EXT
#endif
#if !defined( GL_RG16_SNORM )
#define GL_RG16_SNORM 0x8F99 // same as GL_RG16_SNORM_EXT
#endif
#if !defined( GL_RGB16_SNORM )
#define GL_RGB16_SNORM 0x8F9A // same as GL_RGB16_SNORM_EXT
#endif
#if !defined( GL_RGBA16_SNORM )
#define GL_RGBA16_SNORM 0x8F9B // same as GL_RGBA16_SNORM_EXT
#endif
#if !defined( GL_R16UI )
#define GL_R16UI 0x8234
#endif
#if !defined( GL_RG16UI )
#define GL_RG16UI 0x823A
#endif
#if !defined( GL_RGB16UI )
#define GL_RGB16UI 0x8D77 // same as GL_RGB16UI_EXT
#endif
#if !defined( GL_RGBA16UI )
#define GL_RGBA16UI 0x8D76 // same as GL_RGBA16UI_EXT
#endif
#if !defined( GL_R16I )
#define GL_R16I 0x8233
#endif
#if !defined( GL_RG16I )
#define GL_RG16I 0x8239
#endif
#if !defined( GL_RGB16I )
#define GL_RGB16I 0x8D89 // same as GL_RGB16I_EXT
#endif
#if !defined( GL_RGBA16I )
#define GL_RGBA16I 0x8D88 // same as GL_RGBA16I_EXT
#endif
#if !defined( GL_R16F )
#define GL_R16F 0x822D // same as GL_R16F_EXT
#endif
#if !defined( GL_RG16F )
#define GL_RG16F 0x822F // same as GL_RG16F_EXT
#endif
#if !defined( GL_RGB16F )
#define GL_RGB16F 0x881B // same as GL_RGB16F_EXT and GL_RGB16F_ARB
#endif
#if !defined( GL_RGBA16F )
#define GL_RGBA16F 0x881A // sama as GL_RGBA16F_EXT and GL_RGBA16F_ARB
#endif
//
// 32 bits per component
//
#if !defined( GL_R32UI )
#define GL_R32UI 0x8236
#endif
#if !defined( GL_RG32UI )
#define GL_RG32UI 0x823C
#endif
#if !defined( GL_RGB32UI )
#define GL_RGB32UI 0x8D71 // same as GL_RGB32UI_EXT
#endif
#if !defined( GL_RGBA32UI )
#define GL_RGBA32UI 0x8D70 // same as GL_RGBA32UI_EXT
#endif
#if !defined( GL_R32I )
#define GL_R32I 0x8235
#endif
#if !defined( GL_RG32I )
#define GL_RG32I 0x823B
#endif
#if !defined( GL_RGB32I )
#define GL_RGB32I 0x8D83 // same as GL_RGB32I_EXT
#endif
#if !defined( GL_RGBA32I )
#define GL_RGBA32I 0x8D82 // same as GL_RGBA32I_EXT
#endif
#if !defined( GL_R32F )
#define GL_R32F 0x822E // same as GL_R32F_EXT
#endif
#if !defined( GL_RG32F )
#define GL_RG32F 0x8230 // same as GL_RG32F_EXT
#endif
#if !defined( GL_RGB32F )
#define GL_RGB32F 0x8815 // same as GL_RGB32F_EXT and GL_RGB32F_ARB
#endif
#if !defined( GL_RGBA32F )
#define GL_RGBA32F 0x8814 // same as GL_RGBA32F_EXT and GL_RGBA32F_ARB
#endif
//
// Packed
//
#if !defined( GL_R3_G3_B2 )
#define GL_R3_G3_B2 0x2A10
#endif
#if !defined( GL_RGB4 )
#define GL_RGB4 0x804F // same as GL_RGB4_EXT
#endif
#if !defined( GL_RGB5 )
#define GL_RGB5 0x8050 // same as GL_RGB5_EXT
#endif
#if !defined( GL_RGB565 )
#define GL_RGB565 0x8D62 // same as GL_RGB565_EXT and GL_RGB565_OES
#endif
#if !defined( GL_RGB10 )
#define GL_RGB10 0x8052 // same as GL_RGB10_EXT
#endif
#if !defined( GL_RGB12 )
#define GL_RGB12 0x8053 // same as GL_RGB12_EXT
#endif
#if !defined( GL_RGBA2 )
#define GL_RGBA2 0x8055 // same as GL_RGBA2_EXT
#endif
#if !defined( GL_RGBA4 )
#define GL_RGBA4 0x8056 // same as GL_RGBA4_EXT and GL_RGBA4_OES
#endif
#if !defined( GL_RGBA12 )
#define GL_RGBA12 0x805A // same as GL_RGBA12_EXT
#endif
#if !defined( GL_RGB5_A1 )
#define GL_RGB5_A1 0x8057 // same as GL_RGB5_A1_EXT and GL_RGB5_A1_OES
#endif
#if !defined( GL_RGB10_A2 )
#define GL_RGB10_A2 0x8059 // same as GL_RGB10_A2_EXT
#endif
#if !defined( GL_RGB10_A2UI )
#define GL_RGB10_A2UI 0x906F
#endif
#if !defined( GL_R11F_G11F_B10F )
#define GL_R11F_G11F_B10F 0x8C3A // same as GL_R11F_G11F_B10F_APPLE and GL_R11F_G11F_B10F_EXT
#endif
#if !defined( GL_RGB9_E5 )
#define GL_RGB9_E5 0x8C3D // same as GL_RGB9_E5_APPLE and GL_RGB9_E5_EXT
#endif
//
// Alpha
//
#if !defined( GL_ALPHA4 )
#define GL_ALPHA4 0x803B // deprecated, same as GL_ALPHA4_EXT
#endif
#if !defined( GL_ALPHA8 )
#define GL_ALPHA8 0x803C // deprecated, same as GL_ALPHA8_EXT
#endif
#if !defined( GL_ALPHA8_SNORM )
#define GL_ALPHA8_SNORM 0x9014 // deprecated
#endif
#if !defined( GL_ALPHA8UI_EXT )
#define GL_ALPHA8UI_EXT 0x8D7E // deprecated
#endif
#if !defined( GL_ALPHA8I_EXT )
#define GL_ALPHA8I_EXT 0x8D90 // deprecated
#endif
#if !defined( GL_ALPHA12 )
#define GL_ALPHA12 0x803D // deprecated, same as GL_ALPHA12_EXT
#endif
#if !defined( GL_ALPHA16 )
#define GL_ALPHA16 0x803E // deprecated, same as GL_ALPHA16_EXT
#endif
#if !defined( GL_ALPHA16_SNORM )
#define GL_ALPHA16_SNORM 0x9018 // deprecated
#endif
#if !defined( GL_ALPHA16UI_EXT )
#define GL_ALPHA16UI_EXT 0x8D78 // deprecated
#endif
#if !defined( GL_ALPHA16I_EXT )
#define GL_ALPHA16I_EXT 0x8D8A // deprecated
#endif
#if !defined( GL_ALPHA16F_ARB )
#define GL_ALPHA16F_ARB 0x881C // deprecated, same as GL_ALPHA_FLOAT16_APPLE and GL_ALPHA_FLOAT16_ATI
#endif
#if !defined( GL_ALPHA32UI_EXT )
#define GL_ALPHA32UI_EXT 0x8D72 // deprecated
#endif
#if !defined( GL_ALPHA32I_EXT )
#define GL_ALPHA32I_EXT 0x8D84 // deprecated
#endif
#if !defined( GL_ALPHA32F_ARB )
#define GL_ALPHA32F_ARB 0x8816 // deprecated, same as GL_ALPHA_FLOAT32_APPLE and GL_ALPHA_FLOAT32_ATI
#endif
//
// Luminance
//
#if !defined( GL_LUMINANCE4 )
#define GL_LUMINANCE4 0x803F // deprecated, same as GL_LUMINANCE4_EXT
#endif
#if !defined( GL_LUMINANCE8 )
#define GL_LUMINANCE8 0x8040 // deprecated, same as GL_LUMINANCE8_EXT
#endif
#if !defined( GL_LUMINANCE8_SNORM )
#define GL_LUMINANCE8_SNORM 0x9015 // deprecated
#endif
#if !defined( GL_SLUMINANCE8 )
#define GL_SLUMINANCE8 0x8C47 // deprecated, same as GL_SLUMINANCE8_EXT
#endif
#if !defined( GL_LUMINANCE8UI_EXT )
#define GL_LUMINANCE8UI_EXT 0x8D80 // deprecated
#endif
#if !defined( GL_LUMINANCE8I_EXT )
#define GL_LUMINANCE8I_EXT 0x8D92 // deprecated
#endif
#if !defined( GL_LUMINANCE12 )
#define GL_LUMINANCE12 0x8041 // deprecated, same as GL_LUMINANCE12_EXT
#endif
#if !defined( GL_LUMINANCE16 )
#define GL_LUMINANCE16 0x8042 // deprecated, same as GL_LUMINANCE16_EXT
#endif
#if !defined( GL_LUMINANCE16_SNORM )
#define GL_LUMINANCE16_SNORM 0x9019 // deprecated
#endif
#if !defined( GL_LUMINANCE16UI_EXT )
#define GL_LUMINANCE16UI_EXT 0x8D7A // deprecated
#endif
#if !defined( GL_LUMINANCE16I_EXT )
#define GL_LUMINANCE16I_EXT 0x8D8C // deprecated
#endif
#if !defined( GL_LUMINANCE16F_ARB )
#define GL_LUMINANCE16F_ARB 0x881E // deprecated, same as GL_LUMINANCE_FLOAT16_APPLE and GL_LUMINANCE_FLOAT16_ATI
#endif
#if !defined( GL_LUMINANCE32UI_EXT )
#define GL_LUMINANCE32UI_EXT 0x8D74 // deprecated
#endif
#if !defined( GL_LUMINANCE32I_EXT )
#define GL_LUMINANCE32I_EXT 0x8D86 // deprecated
#endif
#if !defined( GL_LUMINANCE32F_ARB )
#define GL_LUMINANCE32F_ARB 0x8818 // deprecated, same as GL_LUMINANCE_FLOAT32_APPLE and GL_LUMINANCE_FLOAT32_ATI
#endif
//
// Luminance/Alpha
//
#if !defined( GL_LUMINANCE4_ALPHA4 )
#define GL_LUMINANCE4_ALPHA4 0x8043 // deprecated, same as GL_LUMINANCE4_ALPHA4_EXT
#endif
#if !defined( GL_LUMINANCE6_ALPHA2 )
#define GL_LUMINANCE6_ALPHA2 0x8044 // deprecated, same as GL_LUMINANCE6_ALPHA2_EXT
#endif
#if !defined( GL_LUMINANCE8_ALPHA8 )
#define GL_LUMINANCE8_ALPHA8 0x8045 // deprecated, same as GL_LUMINANCE8_ALPHA8_EXT
#endif
#if !defined( GL_LUMINANCE8_ALPHA8_SNORM )
#define GL_LUMINANCE8_ALPHA8_SNORM 0x9016 // deprecated
#endif
#if !defined( GL_SLUMINANCE8_ALPHA8 )
#define GL_SLUMINANCE8_ALPHA8 0x8C45 // deprecated, same as GL_SLUMINANCE8_ALPHA8_EXT
#endif
#if !defined( GL_LUMINANCE_ALPHA8UI_EXT )
#define GL_LUMINANCE_ALPHA8UI_EXT 0x8D81 // deprecated
#endif
#if !defined( GL_LUMINANCE_ALPHA8I_EXT )
#define GL_LUMINANCE_ALPHA8I_EXT 0x8D93 // deprecated
#endif
#if !defined( GL_LUMINANCE12_ALPHA4 )
#define GL_LUMINANCE12_ALPHA4 0x8046 // deprecated, same as GL_LUMINANCE12_ALPHA4_EXT
#endif
#if !defined( GL_LUMINANCE12_ALPHA12 )
#define GL_LUMINANCE12_ALPHA12 0x8047 // deprecated, same as GL_LUMINANCE12_ALPHA12_EXT
#endif
#if !defined( GL_LUMINANCE16_ALPHA16 )
#define GL_LUMINANCE16_ALPHA16 0x8048 // deprecated, same as GL_LUMINANCE16_ALPHA16_EXT
#endif
#if !defined( GL_LUMINANCE16_ALPHA16_SNORM )
#define GL_LUMINANCE16_ALPHA16_SNORM 0x901A // deprecated
#endif
#if !defined( GL_LUMINANCE_ALPHA16UI_EXT )
#define GL_LUMINANCE_ALPHA16UI_EXT 0x8D7B // deprecated
#endif
#if !defined( GL_LUMINANCE_ALPHA16I_EXT )
#define GL_LUMINANCE_ALPHA16I_EXT 0x8D8D // deprecated
#endif
#if !defined( GL_LUMINANCE_ALPHA16F_ARB )
#define GL_LUMINANCE_ALPHA16F_ARB 0x881F // deprecated, same as GL_LUMINANCE_ALPHA_FLOAT16_APPLE and GL_LUMINANCE_ALPHA_FLOAT16_ATI
#endif
#if !defined( GL_LUMINANCE_ALPHA32UI_EXT )
#define GL_LUMINANCE_ALPHA32UI_EXT 0x8D75 // deprecated
#endif
#if !defined( GL_LUMINANCE_ALPHA32I_EXT )
#define GL_LUMINANCE_ALPHA32I_EXT 0x8D87 // deprecated
#endif
#if !defined( GL_LUMINANCE_ALPHA32F_ARB )
#define GL_LUMINANCE_ALPHA32F_ARB 0x8819 // deprecated, same as GL_LUMINANCE_ALPHA_FLOAT32_APPLE and GL_LUMINANCE_ALPHA_FLOAT32_ATI
#endif
//
// Intensity
//
#if !defined( GL_INTENSITY4 )
#define GL_INTENSITY4 0x804A // deprecated, same as GL_INTENSITY4_EXT
#endif
#if !defined( GL_INTENSITY8 )
#define GL_INTENSITY8 0x804B // deprecated, same as GL_INTENSITY8_EXT
#endif
#if !defined( GL_INTENSITY8_SNORM )
#define GL_INTENSITY8_SNORM 0x9017 // deprecated
#endif
#if !defined( GL_INTENSITY8UI_EXT )
#define GL_INTENSITY8UI_EXT 0x8D7F // deprecated
#endif
#if !defined( GL_INTENSITY8I_EXT )
#define GL_INTENSITY8I_EXT 0x8D91 // deprecated
#endif
#if !defined( GL_INTENSITY12 )
#define GL_INTENSITY12 0x804C // deprecated, same as GL_INTENSITY12_EXT
#endif
#if !defined( GL_INTENSITY16 )
#define GL_INTENSITY16 0x804D // deprecated, same as GL_INTENSITY16_EXT
#endif
#if !defined( GL_INTENSITY16_SNORM )
#define GL_INTENSITY16_SNORM 0x901B // deprecated
#endif
#if !defined( GL_INTENSITY16UI_EXT )
#define GL_INTENSITY16UI_EXT 0x8D79 // deprecated
#endif
#if !defined( GL_INTENSITY16I_EXT )
#define GL_INTENSITY16I_EXT 0x8D8B // deprecated
#endif
#if !defined( GL_INTENSITY16F_ARB )
#define GL_INTENSITY16F_ARB 0x881D // deprecated, same as GL_INTENSITY_FLOAT16_APPLE and GL_INTENSITY_FLOAT16_ATI
#endif
#if !defined( GL_INTENSITY32UI_EXT )
#define GL_INTENSITY32UI_EXT 0x8D73 // deprecated
#endif
#if !defined( GL_INTENSITY32I_EXT )
#define GL_INTENSITY32I_EXT 0x8D85 // deprecated
#endif
#if !defined( GL_INTENSITY32F_ARB )
#define GL_INTENSITY32F_ARB 0x8817 // deprecated, same as GL_INTENSITY_FLOAT32_APPLE and GL_INTENSITY_FLOAT32_ATI
#endif
//
// Generic compression
//
#if !defined( GL_COMPRESSED_RED )
#define GL_COMPRESSED_RED 0x8225
#endif
#if !defined( GL_COMPRESSED_ALPHA )
#define GL_COMPRESSED_ALPHA 0x84E9 // deprecated, same as GL_COMPRESSED_ALPHA_ARB
#endif
#if !defined( GL_COMPRESSED_LUMINANCE )
#define GL_COMPRESSED_LUMINANCE 0x84EA // deprecated, same as GL_COMPRESSED_LUMINANCE_ARB
#endif
#if !defined( GL_COMPRESSED_SLUMINANCE )
#define GL_COMPRESSED_SLUMINANCE 0x8C4A // deprecated, same as GL_COMPRESSED_SLUMINANCE_EXT
#endif
#if !defined( GL_COMPRESSED_LUMINANCE_ALPHA )
#define GL_COMPRESSED_LUMINANCE_ALPHA 0x84EB // deprecated, same as GL_COMPRESSED_LUMINANCE_ALPHA_ARB
#endif
#if !defined( GL_COMPRESSED_SLUMINANCE_ALPHA )
#define GL_COMPRESSED_SLUMINANCE_ALPHA 0x8C4B // deprecated, same as GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
#endif
#if !defined( GL_COMPRESSED_INTENSITY )
#define GL_COMPRESSED_INTENSITY 0x84EC // deprecated, same as GL_COMPRESSED_INTENSITY_ARB
#endif
#if !defined( GL_COMPRESSED_RG )
#define GL_COMPRESSED_RG 0x8226
#endif
#if !defined( GL_COMPRESSED_RGB )
#define GL_COMPRESSED_RGB 0x84ED // same as GL_COMPRESSED_RGB_ARB
#endif
#if !defined( GL_COMPRESSED_RGBA )
#define GL_COMPRESSED_RGBA 0x84EE // same as GL_COMPRESSED_RGBA_ARB
#endif
#if !defined( GL_COMPRESSED_SRGB )
#define GL_COMPRESSED_SRGB 0x8C48 // same as GL_COMPRESSED_SRGB_EXT
#endif
#if !defined( GL_COMPRESSED_SRGB_ALPHA )
#define GL_COMPRESSED_SRGB_ALPHA 0x8C49 // same as GL_COMPRESSED_SRGB_ALPHA_EXT
#endif
//
// FXT1
//
#if !defined( GL_COMPRESSED_RGB_FXT1_3DFX )
#define GL_COMPRESSED_RGB_FXT1_3DFX 0x86B0 // deprecated
#endif
#if !defined( GL_COMPRESSED_RGBA_FXT1_3DFX )
#define GL_COMPRESSED_RGBA_FXT1_3DFX 0x86B1 // deprecated
#endif
//
// S3TC/DXT/BC
//
#if !defined( GL_COMPRESSED_RGB_S3TC_DXT1_EXT )
#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
#endif
#if !defined( GL_COMPRESSED_RGBA_S3TC_DXT1_EXT )
#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
#endif
#if !defined( GL_COMPRESSED_RGBA_S3TC_DXT3_EXT )
#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
#endif
#if !defined( GL_COMPRESSED_RGBA_S3TC_DXT5_EXT )
#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
#endif
#if !defined( GL_COMPRESSED_SRGB_S3TC_DXT1_EXT )
#define GL_COMPRESSED_SRGB_S3TC_DXT1_EXT 0x8C4C
#endif
#if !defined( GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT )
#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT 0x8C4D
#endif
#if !defined( GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT )
#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT 0x8C4E
#endif
#if !defined( GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT )
#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT 0x8C4F
#endif
#if !defined( GL_COMPRESSED_LUMINANCE_LATC1_EXT )
#define GL_COMPRESSED_LUMINANCE_LATC1_EXT 0x8C70
#endif
#if !defined( GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT )
#define GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT 0x8C72
#endif
#if !defined( GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT )
#define GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT 0x8C71
#endif
#if !defined( GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT )
#define GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT 0x8C73
#endif
#if !defined( GL_COMPRESSED_RED_RGTC1 )
#define GL_COMPRESSED_RED_RGTC1 0x8DBB // same as GL_COMPRESSED_RED_RGTC1_EXT
#endif
#if !defined( GL_COMPRESSED_RG_RGTC2 )
#define GL_COMPRESSED_RG_RGTC2 0x8DBD // same as GL_COMPRESSED_RG_RGTC2_EXT
#endif
#if !defined( GL_COMPRESSED_SIGNED_RED_RGTC1 )
#define GL_COMPRESSED_SIGNED_RED_RGTC1 0x8DBC // same as GL_COMPRESSED_SIGNED_RED_RGTC1_EXT
#endif
#if !defined( GL_COMPRESSED_SIGNED_RG_RGTC2 )
#define GL_COMPRESSED_SIGNED_RG_RGTC2 0x8DBE // same as GL_COMPRESSED_SIGNED_RG_RGTC2_EXT
#endif
#if !defined( GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT )
#define GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT 0x8E8E // same as GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB
#endif
#if !defined( GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT )
#define GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT 0x8E8F // same as GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB
#endif
#if !defined( GL_COMPRESSED_RGBA_BPTC_UNORM )
#define GL_COMPRESSED_RGBA_BPTC_UNORM 0x8E8C // same as GL_COMPRESSED_RGBA_BPTC_UNORM_ARB
#endif
#if !defined( GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM )
#define GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM 0x8E8D // same as GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB
#endif
//
// ETC
//
#if !defined( GL_ETC1_RGB8_OES )
#define GL_ETC1_RGB8_OES 0x8D64
#endif
#if !defined( GL_COMPRESSED_RGB8_ETC2 )
#define GL_COMPRESSED_RGB8_ETC2 0x9274
#endif
#if !defined( GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 )
#define GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9276
#endif
#if !defined( GL_COMPRESSED_RGBA8_ETC2_EAC )
#define GL_COMPRESSED_RGBA8_ETC2_EAC 0x9278
#endif
#if !defined( GL_COMPRESSED_SRGB8_ETC2 )
#define GL_COMPRESSED_SRGB8_ETC2 0x9275
#endif
#if !defined( GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 )
#define GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9277
#endif
#if !defined( GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC )
#define GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC 0x9279
#endif
#if !defined( GL_COMPRESSED_R11_EAC )
#define GL_COMPRESSED_R11_EAC 0x9270
#endif
#if !defined( GL_COMPRESSED_RG11_EAC )
#define GL_COMPRESSED_RG11_EAC 0x9272
#endif
#if !defined( GL_COMPRESSED_SIGNED_R11_EAC )
#define GL_COMPRESSED_SIGNED_R11_EAC 0x9271
#endif
#if !defined( GL_COMPRESSED_SIGNED_RG11_EAC )
#define GL_COMPRESSED_SIGNED_RG11_EAC 0x9273
#endif
//
// PVRTC
//
#if !defined( GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG )
#define GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG 0x8C01
#define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00
#define GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG 0x8C03
#define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02
#endif
#if !defined( GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG )
#define GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG 0x9137
#define GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG 0x9138
#endif
#if !defined( GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT )
#define GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT 0x8A54
#define GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT 0x8A55
#define GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT 0x8A56
#define GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT 0x8A57
#endif
#if !defined( GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV2_IMG )
#define GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV2_IMG 0x93F0
#define GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV2_IMG 0x93F1
#endif
//
// ASTC
//
#if !defined( GL_COMPRESSED_RGBA_ASTC_4x4_KHR )
#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
#endif
#if !defined( GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR )
#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
#endif
#if !defined( GL_COMPRESSED_RGBA_ASTC_3x3x3_OES )
#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
#endif
#if !defined( GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES )
#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
#endif
//
// ATC
//
#if !defined( GL_ATC_RGB_AMD )
#define GL_ATC_RGB_AMD 0x8C92
#define GL_ATC_RGBA_EXPLICIT_ALPHA_AMD 0x8C93
#define GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD 0x87EE
#endif
//
// Palletized (combined palette)
//
#if !defined( GL_PALETTE4_RGB8_OES )
#define GL_PALETTE4_RGB8_OES 0x8B90
#define GL_PALETTE4_RGBA8_OES 0x8B91
#define GL_PALETTE4_R5_G6_B5_OES 0x8B92
#define GL_PALETTE4_RGBA4_OES 0x8B93
#define GL_PALETTE4_RGB5_A1_OES 0x8B94
#define GL_PALETTE8_RGB8_OES 0x8B95
#define GL_PALETTE8_RGBA8_OES 0x8B96
#define GL_PALETTE8_R5_G6_B5_OES 0x8B97
#define GL_PALETTE8_RGBA4_OES 0x8B98
#define GL_PALETTE8_RGB5_A1_OES 0x8B99
#endif
//
// Palletized (separate palette)
//
#if !defined( GL_COLOR_INDEX1_EXT )
#define GL_COLOR_INDEX1_EXT 0x80E2 // deprecated
#define GL_COLOR_INDEX2_EXT 0x80E3 // deprecated
#define GL_COLOR_INDEX4_EXT 0x80E4 // deprecated
#define GL_COLOR_INDEX8_EXT 0x80E5 // deprecated
#define GL_COLOR_INDEX12_EXT 0x80E6 // deprecated
#define GL_COLOR_INDEX16_EXT 0x80E7 // deprecated
#endif
//
// Depth/stencil
//
#if !defined( GL_DEPTH_COMPONENT16 )
#define GL_DEPTH_COMPONENT16 0x81A5 // same as GL_DEPTH_COMPONENT16_SGIX and GL_DEPTH_COMPONENT16_ARB
#endif
#if !defined( GL_DEPTH_COMPONENT24 )
#define GL_DEPTH_COMPONENT24 0x81A6 // same as GL_DEPTH_COMPONENT24_SGIX and GL_DEPTH_COMPONENT24_ARB
#endif
#if !defined( GL_DEPTH_COMPONENT32 )
#define GL_DEPTH_COMPONENT32 0x81A7 // same as GL_DEPTH_COMPONENT32_SGIX and GL_DEPTH_COMPONENT32_ARB and GL_DEPTH_COMPONENT32_OES
#endif
#if !defined( GL_DEPTH_COMPONENT32F )
#define GL_DEPTH_COMPONENT32F 0x8CAC // same as GL_DEPTH_COMPONENT32F_ARB
#endif
#if !defined( GL_DEPTH_COMPONENT32F_NV )
#define GL_DEPTH_COMPONENT32F_NV 0x8DAB // note that this is different from GL_DEPTH_COMPONENT32F
#endif
#if !defined( GL_STENCIL_INDEX1 )
#define GL_STENCIL_INDEX1 0x8D46 // same as GL_STENCIL_INDEX1_EXT
#endif
#if !defined( GL_STENCIL_INDEX4 )
#define GL_STENCIL_INDEX4 0x8D47 // same as GL_STENCIL_INDEX4_EXT
#endif
#if !defined( GL_STENCIL_INDEX8 )
#define GL_STENCIL_INDEX8 0x8D48 // same as GL_STENCIL_INDEX8_EXT
#endif
#if !defined( GL_STENCIL_INDEX16 )
#define GL_STENCIL_INDEX16 0x8D49 // same as GL_STENCIL_INDEX16_EXT
#endif
#if !defined( GL_DEPTH24_STENCIL8 )
#define GL_DEPTH24_STENCIL8 0x88F0 // same as GL_DEPTH24_STENCIL8_EXT and GL_DEPTH24_STENCIL8_OES
#endif
#if !defined( GL_DEPTH32F_STENCIL8 )
#define GL_DEPTH32F_STENCIL8 0x8CAD // same as GL_DEPTH32F_STENCIL8_ARB
#endif
#if !defined( GL_DEPTH32F_STENCIL8_NV )
#define GL_DEPTH32F_STENCIL8_NV 0x8DAC // note that this is different from GL_DEPTH32F_STENCIL8
#endif
static inline GLenum glGetFormatFromInternalFormat( const GLenum internalFormat )
{
switch ( internalFormat )
{
//
// 8 bits per component
//
case GL_R8: return GL_RED; // 1-component, 8-bit unsigned normalized
case GL_RG8: return GL_RG; // 2-component, 8-bit unsigned normalized
case GL_RGB8: return GL_RGB; // 3-component, 8-bit unsigned normalized
case GL_RGBA8: return GL_RGBA; // 4-component, 8-bit unsigned normalized
case GL_R8_SNORM: return GL_RED; // 1-component, 8-bit signed normalized
case GL_RG8_SNORM: return GL_RG; // 2-component, 8-bit signed normalized
case GL_RGB8_SNORM: return GL_RGB; // 3-component, 8-bit signed normalized
case GL_RGBA8_SNORM: return GL_RGBA; // 4-component, 8-bit signed normalized
case GL_R8UI: return GL_RED; // 1-component, 8-bit unsigned integer
case GL_RG8UI: return GL_RG; // 2-component, 8-bit unsigned integer
case GL_RGB8UI: return GL_RGB; // 3-component, 8-bit unsigned integer
case GL_RGBA8UI: return GL_RGBA; // 4-component, 8-bit unsigned integer
case GL_R8I: return GL_RED; // 1-component, 8-bit signed integer
case GL_RG8I: return GL_RG; // 2-component, 8-bit signed integer
case GL_RGB8I: return GL_RGB; // 3-component, 8-bit signed integer
case GL_RGBA8I: return GL_RGBA; // 4-component, 8-bit signed integer
case GL_SR8: return GL_RED; // 1-component, 8-bit sRGB
case GL_SRG8: return GL_RG; // 2-component, 8-bit sRGB
case GL_SRGB8: return GL_RGB; // 3-component, 8-bit sRGB
case GL_SRGB8_ALPHA8: return GL_RGBA; // 4-component, 8-bit sRGB
//
// 16 bits per component
//
case GL_R16: return GL_RED; // 1-component, 16-bit unsigned normalized
case GL_RG16: return GL_RG; // 2-component, 16-bit unsigned normalized
case GL_RGB16: return GL_RGB; // 3-component, 16-bit unsigned normalized
case GL_RGBA16: return GL_RGBA; // 4-component, 16-bit unsigned normalized
case GL_R16_SNORM: return GL_RED; // 1-component, 16-bit signed normalized
case GL_RG16_SNORM: return GL_RG; // 2-component, 16-bit signed normalized
case GL_RGB16_SNORM: return GL_RGB; // 3-component, 16-bit signed normalized
case GL_RGBA16_SNORM: return GL_RGBA; // 4-component, 16-bit signed normalized
case GL_R16UI: return GL_RED; // 1-component, 16-bit unsigned integer
case GL_RG16UI: return GL_RG; // 2-component, 16-bit unsigned integer
case GL_RGB16UI: return GL_RGB; // 3-component, 16-bit unsigned integer
case GL_RGBA16UI: return GL_RGBA; // 4-component, 16-bit unsigned integer
case GL_R16I: return GL_RED; // 1-component, 16-bit signed integer
case GL_RG16I: return GL_RG; // 2-component, 16-bit signed integer
case GL_RGB16I: return GL_RGB; // 3-component, 16-bit signed integer
case GL_RGBA16I: return GL_RGBA; // 4-component, 16-bit signed integer
case GL_R16F: return GL_RED; // 1-component, 16-bit floating-point
case GL_RG16F: return GL_RG; // 2-component, 16-bit floating-point
case GL_RGB16F: return GL_RGB; // 3-component, 16-bit floating-point
case GL_RGBA16F: return GL_RGBA; // 4-component, 16-bit floating-point
//
// 32 bits per component
//
case GL_R32UI: return GL_RED; // 1-component, 32-bit unsigned integer
case GL_RG32UI: return GL_RG; // 2-component, 32-bit unsigned integer
case GL_RGB32UI: return GL_RGB; // 3-component, 32-bit unsigned integer
case GL_RGBA32UI: return GL_RGBA; // 4-component, 32-bit unsigned integer
case GL_R32I: return GL_RED; // 1-component, 32-bit signed integer
case GL_RG32I: return GL_RG; // 2-component, 32-bit signed integer
case GL_RGB32I: return GL_RGB; // 3-component, 32-bit signed integer
case GL_RGBA32I: return GL_RGBA; // 4-component, 32-bit signed integer
case GL_R32F: return GL_RED; // 1-component, 32-bit floating-point
case GL_RG32F: return GL_RG; // 2-component, 32-bit floating-point
case GL_RGB32F: return GL_RGB; // 3-component, 32-bit floating-point
case GL_RGBA32F: return GL_RGBA; // 4-component, 32-bit floating-point
//
// Packed
//
case GL_R3_G3_B2: return GL_RGB; // 3-component 3:3:2, unsigned normalized
case GL_RGB4: return GL_RGB; // 3-component 4:4:4, unsigned normalized
case GL_RGB5: return GL_RGB; // 3-component 5:5:5, unsigned normalized
case GL_RGB565: return GL_RGB; // 3-component 5:6:5, unsigned normalized
case GL_RGB10: return GL_RGB; // 3-component 10:10:10, unsigned normalized
case GL_RGB12: return GL_RGB; // 3-component 12:12:12, unsigned normalized
case GL_RGBA2: return GL_RGBA; // 4-component 2:2:2:2, unsigned normalized
case GL_RGBA4: return GL_RGBA; // 4-component 4:4:4:4, unsigned normalized
case GL_RGBA12: return GL_RGBA; // 4-component 12:12:12:12, unsigned normalized
case GL_RGB5_A1: return GL_RGBA; // 4-component 5:5:5:1, unsigned normalized
case GL_RGB10_A2: return GL_RGBA; // 4-component 10:10:10:2, unsigned normalized
case GL_RGB10_A2UI: return GL_RGBA; // 4-component 10:10:10:2, unsigned integer
case GL_R11F_G11F_B10F: return GL_RGB; // 3-component 11:11:10, floating-point
case GL_RGB9_E5: return GL_RGB; // 3-component/exp 9:9:9/5, floating-point
//
// S3TC/DXT/BC
//
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return GL_RGB; // line through 3D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return GL_RGBA; // line through 3D space plus 1-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: return GL_RGBA; // line through 3D space plus line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: return GL_RGBA; // line through 3D space plus 4-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: return GL_RGB; // line through 3D space, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: return GL_RGBA; // line through 3D space plus 1-bit alpha, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: return GL_RGBA; // line through 3D space plus line through 1D space, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: return GL_RGBA; // line through 3D space plus 4-bit alpha, 4x4 blocks, sRGB
case GL_COMPRESSED_LUMINANCE_LATC1_EXT: return GL_RED; // line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: return GL_RG; // two lines through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: return GL_RED; // line through 1D space, 4x4 blocks, signed normalized
case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: return GL_RG; // two lines through 1D space, 4x4 blocks, signed normalized
case GL_COMPRESSED_RED_RGTC1: return GL_RED; // line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RG_RGTC2: return GL_RG; // two lines through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_RED_RGTC1: return GL_RED; // line through 1D space, 4x4 blocks, signed normalized
case GL_COMPRESSED_SIGNED_RG_RGTC2: return GL_RG; // two lines through 1D space, 4x4 blocks, signed normalized
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT: return GL_RGB; // 3-component, 4x4 blocks, unsigned floating-point
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT: return GL_RGB; // 3-component, 4x4 blocks, signed floating-point
case GL_COMPRESSED_RGBA_BPTC_UNORM: return GL_RGBA; // 4-component, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM: return GL_RGBA; // 4-component, 4x4 blocks, sRGB
//
// ETC
//
case GL_ETC1_RGB8_OES: return GL_RGB; // 3-component ETC1, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGB8_ETC2: return GL_RGB; // 3-component ETC2, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: return GL_RGBA; // 4-component ETC2 with 1-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA8_ETC2_EAC: return GL_RGBA; // 4-component ETC2, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ETC2: return GL_RGB; // 3-component ETC2, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: return GL_RGBA; // 4-component ETC2 with 1-bit alpha, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: return GL_RGBA; // 4-component ETC2, 4x4 blocks, sRGB
case GL_COMPRESSED_R11_EAC: return GL_RED; // 1-component ETC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RG11_EAC: return GL_RG; // 2-component ETC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_R11_EAC: return GL_RED; // 1-component ETC, 4x4 blocks, signed normalized
case GL_COMPRESSED_SIGNED_RG11_EAC: return GL_RG; // 2-component ETC, 4x4 blocks, signed normalized
//
// PVRTC
//
case GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG: return GL_RGB; // 3-component PVRTC, 16x8 blocks, unsigned normalized
case GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG: return GL_RGB; // 3-component PVRTC, 8x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG: return GL_RGBA; // 4-component PVRTC, 16x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG: return GL_RGBA; // 4-component PVRTC, 8x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG: return GL_RGBA; // 4-component PVRTC, 8x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG: return GL_RGBA; // 4-component PVRTC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT: return GL_RGB; // 3-component PVRTC, 16x8 blocks, sRGB
case GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT: return GL_RGB; // 3-component PVRTC, 8x8 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT: return GL_RGBA; // 4-component PVRTC, 16x8 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT: return GL_RGBA; // 4-component PVRTC, 8x8 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV2_IMG: return GL_RGBA; // 4-component PVRTC, 8x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV2_IMG: return GL_RGBA; // 4-component PVRTC, 4x4 blocks, sRGB
//
// ASTC
//
case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: return GL_RGBA; // 4-component ASTC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: return GL_RGBA; // 4-component ASTC, 5x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: return GL_RGBA; // 4-component ASTC, 5x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: return GL_RGBA; // 4-component ASTC, 6x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: return GL_RGBA; // 4-component ASTC, 6x6 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: return GL_RGBA; // 4-component ASTC, 8x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: return GL_RGBA; // 4-component ASTC, 8x6 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: return GL_RGBA; // 4-component ASTC, 8x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: return GL_RGBA; // 4-component ASTC, 10x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: return GL_RGBA; // 4-component ASTC, 10x6 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: return GL_RGBA; // 4-component ASTC, 10x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: return GL_RGBA; // 4-component ASTC, 10x10 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: return GL_RGBA; // 4-component ASTC, 12x10 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: return GL_RGBA; // 4-component ASTC, 12x12 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: return GL_RGBA; // 4-component ASTC, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: return GL_RGBA; // 4-component ASTC, 5x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: return GL_RGBA; // 4-component ASTC, 5x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: return GL_RGBA; // 4-component ASTC, 6x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: return GL_RGBA; // 4-component ASTC, 6x6 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: return GL_RGBA; // 4-component ASTC, 8x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: return GL_RGBA; // 4-component ASTC, 8x6 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: return GL_RGBA; // 4-component ASTC, 8x8 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: return GL_RGBA; // 4-component ASTC, 10x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: return GL_RGBA; // 4-component ASTC, 10x6 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: return GL_RGBA; // 4-component ASTC, 10x8 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: return GL_RGBA; // 4-component ASTC, 10x10 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: return GL_RGBA; // 4-component ASTC, 12x10 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: return GL_RGBA; // 4-component ASTC, 12x12 blocks, sRGB
case GL_COMPRESSED_RGBA_ASTC_3x3x3_OES: return GL_RGBA; // 4-component ASTC, 3x3x3 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_4x3x3_OES: return GL_RGBA; // 4-component ASTC, 4x3x3 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_4x4x3_OES: return GL_RGBA; // 4-component ASTC, 4x4x3 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_4x4x4_OES: return GL_RGBA; // 4-component ASTC, 4x4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x4x4_OES: return GL_RGBA; // 4-component ASTC, 5x4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x5x4_OES: return GL_RGBA; // 4-component ASTC, 5x5x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x5x5_OES: return GL_RGBA; // 4-component ASTC, 5x5x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x5x5_OES: return GL_RGBA; // 4-component ASTC, 6x5x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x6x5_OES: return GL_RGBA; // 4-component ASTC, 6x6x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x6x6_OES: return GL_RGBA; // 4-component ASTC, 6x6x6 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES: return GL_RGBA; // 4-component ASTC, 3x3x3 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES: return GL_RGBA; // 4-component ASTC, 4x3x3 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES: return GL_RGBA; // 4-component ASTC, 4x4x3 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES: return GL_RGBA; // 4-component ASTC, 4x4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES: return GL_RGBA; // 4-component ASTC, 5x4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES: return GL_RGBA; // 4-component ASTC, 5x5x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES: return GL_RGBA; // 4-component ASTC, 5x5x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES: return GL_RGBA; // 4-component ASTC, 6x5x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES: return GL_RGBA; // 4-component ASTC, 6x6x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES: return GL_RGBA; // 4-component ASTC, 6x6x6 blocks, sRGB
//
// ATC
//
case GL_ATC_RGB_AMD: return GL_RGB; // 3-component, 4x4 blocks, unsigned normalized
case GL_ATC_RGBA_EXPLICIT_ALPHA_AMD: return GL_RGBA; // 4-component, 4x4 blocks, unsigned normalized
case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD: return GL_RGBA; // 4-component, 4x4 blocks, unsigned normalized
//
// Palletized
//
case GL_PALETTE4_RGB8_OES: return GL_RGB; // 3-component 8:8:8, 4-bit palette, unsigned normalized
case GL_PALETTE4_RGBA8_OES: return GL_RGBA; // 4-component 8:8:8:8, 4-bit palette, unsigned normalized
case GL_PALETTE4_R5_G6_B5_OES: return GL_RGB; // 3-component 5:6:5, 4-bit palette, unsigned normalized
case GL_PALETTE4_RGBA4_OES: return GL_RGBA; // 4-component 4:4:4:4, 4-bit palette, unsigned normalized
case GL_PALETTE4_RGB5_A1_OES: return GL_RGBA; // 4-component 5:5:5:1, 4-bit palette, unsigned normalized
case GL_PALETTE8_RGB8_OES: return GL_RGB; // 3-component 8:8:8, 8-bit palette, unsigned normalized
case GL_PALETTE8_RGBA8_OES: return GL_RGBA; // 4-component 8:8:8:8, 8-bit palette, unsigned normalized
case GL_PALETTE8_R5_G6_B5_OES: return GL_RGB; // 3-component 5:6:5, 8-bit palette, unsigned normalized
case GL_PALETTE8_RGBA4_OES: return GL_RGBA; // 4-component 4:4:4:4, 8-bit palette, unsigned normalized
case GL_PALETTE8_RGB5_A1_OES: return GL_RGBA; // 4-component 5:5:5:1, 8-bit palette, unsigned normalized
//
// Depth/stencil
//
case GL_DEPTH_COMPONENT16: return GL_DEPTH_COMPONENT;
case GL_DEPTH_COMPONENT24: return GL_DEPTH_COMPONENT;
case GL_DEPTH_COMPONENT32: return GL_DEPTH_COMPONENT;
case GL_DEPTH_COMPONENT32F: return GL_DEPTH_COMPONENT;
case GL_DEPTH_COMPONENT32F_NV: return GL_DEPTH_COMPONENT;
case GL_STENCIL_INDEX1: return GL_STENCIL_INDEX;
case GL_STENCIL_INDEX4: return GL_STENCIL_INDEX;
case GL_STENCIL_INDEX8: return GL_STENCIL_INDEX;
case GL_STENCIL_INDEX16: return GL_STENCIL_INDEX;
case GL_DEPTH24_STENCIL8: return GL_DEPTH_STENCIL;
case GL_DEPTH32F_STENCIL8: return GL_DEPTH_STENCIL;
case GL_DEPTH32F_STENCIL8_NV: return GL_DEPTH_STENCIL;
default: return GL_INVALID_VALUE;
}
}
static inline GLenum glGetTypeFromInternalFormat( const GLenum internalFormat )
{
switch ( internalFormat )
{
//
// 8 bits per component
//
case GL_R8: return GL_UNSIGNED_BYTE; // 1-component, 8-bit unsigned normalized
case GL_RG8: return GL_UNSIGNED_BYTE; // 2-component, 8-bit unsigned normalized
case GL_RGB8: return GL_UNSIGNED_BYTE; // 3-component, 8-bit unsigned normalized
case GL_RGBA8: return GL_UNSIGNED_BYTE; // 4-component, 8-bit unsigned normalized
case GL_R8_SNORM: return GL_BYTE; // 1-component, 8-bit signed normalized
case GL_RG8_SNORM: return GL_BYTE; // 2-component, 8-bit signed normalized
case GL_RGB8_SNORM: return GL_BYTE; // 3-component, 8-bit signed normalized
case GL_RGBA8_SNORM: return GL_BYTE; // 4-component, 8-bit signed normalized
case GL_R8UI: return GL_UNSIGNED_BYTE; // 1-component, 8-bit unsigned integer
case GL_RG8UI: return GL_UNSIGNED_BYTE; // 2-component, 8-bit unsigned integer
case GL_RGB8UI: return GL_UNSIGNED_BYTE; // 3-component, 8-bit unsigned integer
case GL_RGBA8UI: return GL_UNSIGNED_BYTE; // 4-component, 8-bit unsigned integer
case GL_R8I: return GL_BYTE; // 1-component, 8-bit signed integer
case GL_RG8I: return GL_BYTE; // 2-component, 8-bit signed integer
case GL_RGB8I: return GL_BYTE; // 3-component, 8-bit signed integer
case GL_RGBA8I: return GL_BYTE; // 4-component, 8-bit signed integer
case GL_SR8: return GL_UNSIGNED_BYTE; // 1-component, 8-bit sRGB
case GL_SRG8: return GL_UNSIGNED_BYTE; // 2-component, 8-bit sRGB
case GL_SRGB8: return GL_UNSIGNED_BYTE; // 3-component, 8-bit sRGB
case GL_SRGB8_ALPHA8: return GL_UNSIGNED_BYTE; // 4-component, 8-bit sRGB
//
// 16 bits per component
//
case GL_R16: return GL_UNSIGNED_SHORT; // 1-component, 16-bit unsigned normalized
case GL_RG16: return GL_UNSIGNED_SHORT; // 2-component, 16-bit unsigned normalized
case GL_RGB16: return GL_UNSIGNED_SHORT; // 3-component, 16-bit unsigned normalized
case GL_RGBA16: return GL_UNSIGNED_SHORT; // 4-component, 16-bit unsigned normalized
case GL_R16_SNORM: return GL_SHORT; // 1-component, 16-bit signed normalized
case GL_RG16_SNORM: return GL_SHORT; // 2-component, 16-bit signed normalized
case GL_RGB16_SNORM: return GL_SHORT; // 3-component, 16-bit signed normalized
case GL_RGBA16_SNORM: return GL_SHORT; // 4-component, 16-bit signed normalized
case GL_R16UI: return GL_UNSIGNED_SHORT; // 1-component, 16-bit unsigned integer
case GL_RG16UI: return GL_UNSIGNED_SHORT; // 2-component, 16-bit unsigned integer
case GL_RGB16UI: return GL_UNSIGNED_SHORT; // 3-component, 16-bit unsigned integer
case GL_RGBA16UI: return GL_UNSIGNED_SHORT; // 4-component, 16-bit unsigned integer
case GL_R16I: return GL_SHORT; // 1-component, 16-bit signed integer
case GL_RG16I: return GL_SHORT; // 2-component, 16-bit signed integer
case GL_RGB16I: return GL_SHORT; // 3-component, 16-bit signed integer
case GL_RGBA16I: return GL_SHORT; // 4-component, 16-bit signed integer
case GL_R16F: return GL_HALF_FLOAT; // 1-component, 16-bit floating-point
case GL_RG16F: return GL_HALF_FLOAT; // 2-component, 16-bit floating-point
case GL_RGB16F: return GL_HALF_FLOAT; // 3-component, 16-bit floating-point
case GL_RGBA16F: return GL_HALF_FLOAT; // 4-component, 16-bit floating-point
//
// 32 bits per component
//
case GL_R32UI: return GL_UNSIGNED_INT; // 1-component, 32-bit unsigned integer
case GL_RG32UI: return GL_UNSIGNED_INT; // 2-component, 32-bit unsigned integer
case GL_RGB32UI: return GL_UNSIGNED_INT; // 3-component, 32-bit unsigned integer
case GL_RGBA32UI: return GL_UNSIGNED_INT; // 4-component, 32-bit unsigned integer
case GL_R32I: return GL_INT; // 1-component, 32-bit signed integer
case GL_RG32I: return GL_INT; // 2-component, 32-bit signed integer
case GL_RGB32I: return GL_INT; // 3-component, 32-bit signed integer
case GL_RGBA32I: return GL_INT; // 4-component, 32-bit signed integer
case GL_R32F: return GL_FLOAT; // 1-component, 32-bit floating-point
case GL_RG32F: return GL_FLOAT; // 2-component, 32-bit floating-point
case GL_RGB32F: return GL_FLOAT; // 3-component, 32-bit floating-point
case GL_RGBA32F: return GL_FLOAT; // 4-component, 32-bit floating-point
//
// Packed
//
case GL_R3_G3_B2: return GL_UNSIGNED_BYTE_2_3_3_REV; // 3-component 3:3:2, unsigned normalized
case GL_RGB4: return GL_UNSIGNED_SHORT_4_4_4_4; // 3-component 4:4:4, unsigned normalized
case GL_RGB5: return GL_UNSIGNED_SHORT_5_5_5_1; // 3-component 5:5:5, unsigned normalized
case GL_RGB565: return GL_UNSIGNED_SHORT_5_6_5; // 3-component 5:6:5, unsigned normalized
case GL_RGB10: return GL_UNSIGNED_INT_10_10_10_2; // 3-component 10:10:10, unsigned normalized
case GL_RGB12: return GL_UNSIGNED_SHORT; // 3-component 12:12:12, unsigned normalized
case GL_RGBA2: return GL_UNSIGNED_BYTE; // 4-component 2:2:2:2, unsigned normalized
case GL_RGBA4: return GL_UNSIGNED_SHORT_4_4_4_4; // 4-component 4:4:4:4, unsigned normalized
case GL_RGBA12: return GL_UNSIGNED_SHORT; // 4-component 12:12:12:12, unsigned normalized
case GL_RGB5_A1: return GL_UNSIGNED_SHORT_5_5_5_1; // 4-component 5:5:5:1, unsigned normalized
case GL_RGB10_A2: return GL_UNSIGNED_INT_2_10_10_10_REV; // 4-component 10:10:10:2, unsigned normalized
case GL_RGB10_A2UI: return GL_UNSIGNED_INT_2_10_10_10_REV; // 4-component 10:10:10:2, unsigned integer
case GL_R11F_G11F_B10F: return GL_UNSIGNED_INT_10F_11F_11F_REV; // 3-component 11:11:10, floating-point
case GL_RGB9_E5: return GL_UNSIGNED_INT_5_9_9_9_REV; // 3-component/exp 9:9:9/5, floating-point
//
// S3TC/DXT/BC
//
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return GL_UNSIGNED_BYTE; // line through 3D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return GL_UNSIGNED_BYTE; // line through 3D space plus 1-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: return GL_UNSIGNED_BYTE; // line through 3D space plus line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: return GL_UNSIGNED_BYTE; // line through 3D space plus 4-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: return GL_UNSIGNED_BYTE; // line through 3D space, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: return GL_UNSIGNED_BYTE; // line through 3D space plus 1-bit alpha, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: return GL_UNSIGNED_BYTE; // line through 3D space plus line through 1D space, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: return GL_UNSIGNED_BYTE; // line through 3D space plus 4-bit alpha, 4x4 blocks, sRGB
case GL_COMPRESSED_LUMINANCE_LATC1_EXT: return GL_UNSIGNED_BYTE; // line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: return GL_UNSIGNED_BYTE; // two lines through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: return GL_UNSIGNED_BYTE; // line through 1D space, 4x4 blocks, signed normalized
case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: return GL_UNSIGNED_BYTE; // two lines through 1D space, 4x4 blocks, signed normalized
case GL_COMPRESSED_RED_RGTC1: return GL_UNSIGNED_BYTE; // line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RG_RGTC2: return GL_UNSIGNED_BYTE; // two lines through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_RED_RGTC1: return GL_UNSIGNED_BYTE; // line through 1D space, 4x4 blocks, signed normalized
case GL_COMPRESSED_SIGNED_RG_RGTC2: return GL_UNSIGNED_BYTE; // two lines through 1D space, 4x4 blocks, signed normalized
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT: return GL_FLOAT; // 3-component, 4x4 blocks, unsigned floating-point
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT: return GL_FLOAT; // 3-component, 4x4 blocks, signed floating-point
case GL_COMPRESSED_RGBA_BPTC_UNORM: return GL_UNSIGNED_BYTE; // 4-component, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM: return GL_UNSIGNED_BYTE; // 4-component, 4x4 blocks, sRGB
//
// ETC
//
case GL_ETC1_RGB8_OES: return GL_UNSIGNED_BYTE; // 3-component ETC1, 4x4 blocks, unsigned normalized" ),
case GL_COMPRESSED_RGB8_ETC2: return GL_UNSIGNED_BYTE; // 3-component ETC2, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: return GL_UNSIGNED_BYTE; // 4-component ETC2 with 1-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA8_ETC2_EAC: return GL_UNSIGNED_BYTE; // 4-component ETC2, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ETC2: return GL_UNSIGNED_BYTE; // 3-component ETC2, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: return GL_UNSIGNED_BYTE; // 4-component ETC2 with 1-bit alpha, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: return GL_UNSIGNED_BYTE; // 4-component ETC2, 4x4 blocks, sRGB
case GL_COMPRESSED_R11_EAC: return GL_UNSIGNED_BYTE; // 1-component ETC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RG11_EAC: return GL_UNSIGNED_BYTE; // 2-component ETC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_R11_EAC: return GL_UNSIGNED_BYTE; // 1-component ETC, 4x4 blocks, signed normalized
case GL_COMPRESSED_SIGNED_RG11_EAC: return GL_UNSIGNED_BYTE; // 2-component ETC, 4x4 blocks, signed normalized
//
// PVRTC
//
case GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG: return GL_UNSIGNED_BYTE; // 3-component PVRTC, 16x8 blocks, unsigned normalized
case GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG: return GL_UNSIGNED_BYTE; // 3-component PVRTC, 8x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG: return GL_UNSIGNED_BYTE; // 4-component PVRTC, 16x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG: return GL_UNSIGNED_BYTE; // 4-component PVRTC, 8x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG: return GL_UNSIGNED_BYTE; // 4-component PVRTC, 8x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG: return GL_UNSIGNED_BYTE; // 4-component PVRTC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT: return GL_UNSIGNED_BYTE; // 3-component PVRTC, 16x8 blocks, sRGB
case GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT: return GL_UNSIGNED_BYTE; // 3-component PVRTC, 8x8 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT: return GL_UNSIGNED_BYTE; // 4-component PVRTC, 16x8 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT: return GL_UNSIGNED_BYTE; // 4-component PVRTC, 8x8 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV2_IMG: return GL_UNSIGNED_BYTE; // 4-component PVRTC, 8x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV2_IMG: return GL_UNSIGNED_BYTE; // 4-component PVRTC, 4x4 blocks, sRGB
//
// ASTC
//
case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x6 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 8x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 8x6 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 8x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 10x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 10x6 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 10x8 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 10x10 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 12x10 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 12x12 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x6 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 8x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 8x6 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 8x8 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 10x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 10x6 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 10x8 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 10x10 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 12x10 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: return GL_UNSIGNED_BYTE; // 4-component ASTC, 12x12 blocks, sRGB
case GL_COMPRESSED_RGBA_ASTC_3x3x3_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 3x3x3 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_4x3x3_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 4x3x3 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_4x4x3_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 4x4x3 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_4x4x4_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 4x4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x4x4_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x5x4_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x5x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_5x5x5_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x5x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x5x5_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x5x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x6x5_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x6x5 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_ASTC_6x6x6_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x6x6 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 3x3x3 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 4x3x3 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 4x4x3 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 4x4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x4x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x5x4 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 5x5x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x5x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x6x5 blocks, sRGB
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES: return GL_UNSIGNED_BYTE; // 4-component ASTC, 6x6x6 blocks, sRGB
//
// ATC
//
case GL_ATC_RGB_AMD: return GL_UNSIGNED_BYTE; // 3-component, 4x4 blocks, unsigned normalized
case GL_ATC_RGBA_EXPLICIT_ALPHA_AMD: return GL_UNSIGNED_BYTE; // 4-component, 4x4 blocks, unsigned normalized
case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD: return GL_UNSIGNED_BYTE; // 4-component, 4x4 blocks, unsigned normalized
//
// Palletized
//
case GL_PALETTE4_RGB8_OES: return GL_UNSIGNED_BYTE; // 3-component 8:8:8, 4-bit palette, unsigned normalized
case GL_PALETTE4_RGBA8_OES: return GL_UNSIGNED_BYTE; // 4-component 8:8:8:8, 4-bit palette, unsigned normalized
case GL_PALETTE4_R5_G6_B5_OES: return GL_UNSIGNED_SHORT_5_6_5; // 3-component 5:6:5, 4-bit palette, unsigned normalized
case GL_PALETTE4_RGBA4_OES: return GL_UNSIGNED_SHORT_4_4_4_4; // 4-component 4:4:4:4, 4-bit palette, unsigned normalized
case GL_PALETTE4_RGB5_A1_OES: return GL_UNSIGNED_SHORT_5_5_5_1; // 4-component 5:5:5:1, 4-bit palette, unsigned normalized
case GL_PALETTE8_RGB8_OES: return GL_UNSIGNED_BYTE; // 3-component 8:8:8, 8-bit palette, unsigned normalized
case GL_PALETTE8_RGBA8_OES: return GL_UNSIGNED_BYTE; // 4-component 8:8:8:8, 8-bit palette, unsigned normalized
case GL_PALETTE8_R5_G6_B5_OES: return GL_UNSIGNED_SHORT_5_6_5; // 3-component 5:6:5, 8-bit palette, unsigned normalized
case GL_PALETTE8_RGBA4_OES: return GL_UNSIGNED_SHORT_4_4_4_4; // 4-component 4:4:4:4, 8-bit palette, unsigned normalized
case GL_PALETTE8_RGB5_A1_OES: return GL_UNSIGNED_SHORT_5_5_5_1; // 4-component 5:5:5:1, 8-bit palette, unsigned normalized
//
// Depth/stencil
//
case GL_DEPTH_COMPONENT16: return GL_UNSIGNED_SHORT;
case GL_DEPTH_COMPONENT24: return GL_UNSIGNED_INT_24_8;
case GL_DEPTH_COMPONENT32: return GL_UNSIGNED_INT;
case GL_DEPTH_COMPONENT32F: return GL_FLOAT;
case GL_DEPTH_COMPONENT32F_NV: return GL_FLOAT;
case GL_STENCIL_INDEX1: return GL_UNSIGNED_BYTE;
case GL_STENCIL_INDEX4: return GL_UNSIGNED_BYTE;
case GL_STENCIL_INDEX8: return GL_UNSIGNED_BYTE;
case GL_STENCIL_INDEX16: return GL_UNSIGNED_SHORT;
case GL_DEPTH24_STENCIL8: return GL_UNSIGNED_INT_24_8;
case GL_DEPTH32F_STENCIL8: return GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
case GL_DEPTH32F_STENCIL8_NV: return GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
default: return GL_INVALID_VALUE;
}
}
static inline unsigned int glGetTypeSizeFromType(GLenum type)
{
switch (type) {
case GL_BYTE:
case GL_UNSIGNED_BYTE:
case GL_UNSIGNED_BYTE_3_3_2:
case GL_UNSIGNED_BYTE_2_3_3_REV:
return 1;
case GL_SHORT:
case GL_UNSIGNED_SHORT:
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_5_5_5_1:
case GL_UNSIGNED_SHORT_5_6_5_REV:
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
case GL_HALF_FLOAT:
return 2;
case GL_INT:
case GL_UNSIGNED_INT:
case GL_UNSIGNED_INT_8_8_8_8:
case GL_UNSIGNED_INT_8_8_8_8_REV:
case GL_UNSIGNED_INT_10_10_10_2:
case GL_UNSIGNED_INT_2_10_10_10_REV:
case GL_UNSIGNED_INT_24_8:
case GL_UNSIGNED_INT_10F_11F_11F_REV:
case GL_UNSIGNED_INT_5_9_9_9_REV:
case GL_FLOAT:
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
return 4;
default:
return GL_INVALID_VALUE;
}
}
static inline void glGetFormatSize( const GLenum internalFormat, ktxFormatSize * pFormatSize )
{
pFormatSize->minBlocksX = pFormatSize->minBlocksY = 1;
switch ( internalFormat )
{
//
// 8 bits per component
//
case GL_R8: // 1-component, 8-bit unsigned normalized
case GL_R8_SNORM: // 1-component, 8-bit signed normalized
case GL_R8UI: // 1-component, 8-bit unsigned integer
case GL_R8I: // 1-component, 8-bit signed integer
case GL_SR8: // 1-component, 8-bit sRGB
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 1 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RG8: // 2-component, 8-bit unsigned normalized
case GL_RG8_SNORM: // 2-component, 8-bit signed normalized
case GL_RG8UI: // 2-component, 8-bit unsigned integer
case GL_RG8I: // 2-component, 8-bit signed integer
case GL_SRG8: // 2-component, 8-bit sRGB
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 2 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB8: // 3-component, 8-bit unsigned normalized
case GL_RGB8_SNORM: // 3-component, 8-bit signed normalized
case GL_RGB8UI: // 3-component, 8-bit unsigned integer
case GL_RGB8I: // 3-component, 8-bit signed integer
case GL_SRGB8: // 3-component, 8-bit sRGB
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 3 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGBA8: // 4-component, 8-bit unsigned normalized
case GL_RGBA8_SNORM: // 4-component, 8-bit signed normalized
case GL_RGBA8UI: // 4-component, 8-bit unsigned integer
case GL_RGBA8I: // 4-component, 8-bit signed integer
case GL_SRGB8_ALPHA8: // 4-component, 8-bit sRGB
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 4 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
//
// 16 bits per component
//
case GL_R16: // 1-component, 16-bit unsigned normalized
case GL_R16_SNORM: // 1-component, 16-bit signed normalized
case GL_R16UI: // 1-component, 16-bit unsigned integer
case GL_R16I: // 1-component, 16-bit signed integer
case GL_R16F: // 1-component, 16-bit floating-point
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 2 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RG16: // 2-component, 16-bit unsigned normalized
case GL_RG16_SNORM: // 2-component, 16-bit signed normalized
case GL_RG16UI: // 2-component, 16-bit unsigned integer
case GL_RG16I: // 2-component, 16-bit signed integer
case GL_RG16F: // 2-component, 16-bit floating-point
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 4 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB16: // 3-component, 16-bit unsigned normalized
case GL_RGB16_SNORM: // 3-component, 16-bit signed normalized
case GL_RGB16UI: // 3-component, 16-bit unsigned integer
case GL_RGB16I: // 3-component, 16-bit signed integer
case GL_RGB16F: // 3-component, 16-bit floating-point
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 6 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGBA16: // 4-component, 16-bit unsigned normalized
case GL_RGBA16_SNORM: // 4-component, 16-bit signed normalized
case GL_RGBA16UI: // 4-component, 16-bit unsigned integer
case GL_RGBA16I: // 4-component, 16-bit signed integer
case GL_RGBA16F: // 4-component, 16-bit floating-point
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 8 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
//
// 32 bits per component
//
case GL_R32UI: // 1-component, 32-bit unsigned integer
case GL_R32I: // 1-component, 32-bit signed integer
case GL_R32F: // 1-component, 32-bit floating-point
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 4 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RG32UI: // 2-component, 32-bit unsigned integer
case GL_RG32I: // 2-component, 32-bit signed integer
case GL_RG32F: // 2-component, 32-bit floating-point
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 8 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB32UI: // 3-component, 32-bit unsigned integer
case GL_RGB32I: // 3-component, 32-bit signed integer
case GL_RGB32F: // 3-component, 32-bit floating-point
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 12 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGBA32UI: // 4-component, 32-bit unsigned integer
case GL_RGBA32I: // 4-component, 32-bit signed integer
case GL_RGBA32F: // 4-component, 32-bit floating-point
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 16 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
//
// Packed
//
case GL_R3_G3_B2: // 3-component 3:3:2, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB4: // 3-component 4:4:4, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 12;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB5: // 3-component 5:5:5, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 16;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB565: // 3-component 5:6:5, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 16;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB10: // 3-component 10:10:10, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 32;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB12: // 3-component 12:12:12, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 36;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGBA2: // 4-component 2:2:2:2, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGBA4: // 4-component 4:4:4:4, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 16;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGBA12: // 4-component 12:12:12:12, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 48;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB5_A1: // 4-component 5:5:5:1, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 32;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB10_A2: // 4-component 10:10:10:2, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 32;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_RGB10_A2UI: // 4-component 10:10:10:2, unsigned integer
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 32;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_R11F_G11F_B10F: // 3-component 11:11:10, floating-point
case GL_RGB9_E5: // 3-component/exp 9:9:9/5, floating-point
pFormatSize->flags = KTX_FORMAT_SIZE_PACKED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 32;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
//
// S3TC/DXT/BC
//
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: // line through 3D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: // line through 3D space plus 1-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: // line through 3D space, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: // line through 3D space plus 1-bit alpha, 4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: // line through 3D space plus line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: // line through 3D space plus 4-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: // line through 3D space plus line through 1D space, 4x4 blocks, sRGB
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: // line through 3D space plus 4-bit alpha, 4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_LUMINANCE_LATC1_EXT: // line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: // line through 1D space, 4x4 blocks, signed normalized
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: // two lines through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: // two lines through 1D space, 4x4 blocks, signed normalized
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RED_RGTC1: // line through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_RED_RGTC1: // line through 1D space, 4x4 blocks, signed normalized
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RG_RGTC2: // two lines through 1D space, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_RG_RGTC2: // two lines through 1D space, 4x4 blocks, signed normalized
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT: // 3-component, 4x4 blocks, unsigned floating-point
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT: // 3-component, 4x4 blocks, signed floating-point
case GL_COMPRESSED_RGBA_BPTC_UNORM: // 4-component, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM: // 4-component, 4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
//
// ETC
//
case GL_ETC1_RGB8_OES: // 3-component ETC1, 4x4 blocks, unsigned normalized" ),
case GL_COMPRESSED_RGB8_ETC2: // 3-component ETC2, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ETC2: // 3-component ETC2, 4x4 blocks, sRGB
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: // 4-component ETC2 with 1-bit alpha, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: // 4-component ETC2 with 1-bit alpha, 4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA8_ETC2_EAC: // 4-component ETC2, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: // 4-component ETC2, 4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_R11_EAC: // 1-component ETC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_R11_EAC: // 1-component ETC, 4x4 blocks, signed normalized
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RG11_EAC: // 2-component ETC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SIGNED_RG11_EAC: // 2-component ETC, 4x4 blocks, signed normalized
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
//
// PVRTC
//
case GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG: // 3-component PVRTC, 8x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT: // 3-component PVRTC, 8x4 blocks, sRGB
case GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG: // 4-component PVRTC, 8x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT: // 4-component PVRTC, 8x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 8;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
pFormatSize->minBlocksX = 2;
pFormatSize->minBlocksY = 2;
break;
case GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG: // 3-component PVRTC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT: // 3-component PVRTC, 4x4 blocks, sRGB
case GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG: // 4-component PVRTC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT: // 4-component PVRTC, 4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
pFormatSize->minBlocksX = 2;
pFormatSize->minBlocksY = 2;
break;
case GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG: // 4-component PVRTC, 8x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV2_IMG: // 4-component PVRTC, 8x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 8;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG: // 4-component PVRTC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV2_IMG: // 4-component PVRTC, 4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
//
// ASTC
//
case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: // 4-component ASTC, 4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: // 4-component ASTC, 4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: // 4-component ASTC, 5x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: // 4-component ASTC, 5x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 5;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: // 4-component ASTC, 5x5 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: // 4-component ASTC, 5x5 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 5;
pFormatSize->blockHeight = 5;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: // 4-component ASTC, 6x5 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: // 4-component ASTC, 6x5 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 6;
pFormatSize->blockHeight = 5;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: // 4-component ASTC, 6x6 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: // 4-component ASTC, 6x6 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 6;
pFormatSize->blockHeight = 6;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: // 4-component ASTC, 8x5 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: // 4-component ASTC, 8x5 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 8;
pFormatSize->blockHeight = 5;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: // 4-component ASTC, 8x6 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: // 4-component ASTC, 8x6 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 8;
pFormatSize->blockHeight = 6;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: // 4-component ASTC, 8x8 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: // 4-component ASTC, 8x8 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 8;
pFormatSize->blockHeight = 8;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: // 4-component ASTC, 10x5 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: // 4-component ASTC, 10x5 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 10;
pFormatSize->blockHeight = 5;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: // 4-component ASTC, 10x6 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: // 4-component ASTC, 10x6 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 10;
pFormatSize->blockHeight = 6;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: // 4-component ASTC, 10x8 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: // 4-component ASTC, 10x8 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 10;
pFormatSize->blockHeight = 8;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: // 4-component ASTC, 10x10 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: // 4-component ASTC, 10x10 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 10;
pFormatSize->blockHeight = 10;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: // 4-component ASTC, 12x10 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: // 4-component ASTC, 12x10 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 12;
pFormatSize->blockHeight = 10;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: // 4-component ASTC, 12x12 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: // 4-component ASTC, 12x12 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 12;
pFormatSize->blockHeight = 12;
pFormatSize->blockDepth = 1;
break;
case GL_COMPRESSED_RGBA_ASTC_3x3x3_OES: // 4-component ASTC, 3x3x3 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES: // 4-component ASTC, 3x3x3 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 3;
pFormatSize->blockHeight = 3;
pFormatSize->blockDepth = 3;
break;
case GL_COMPRESSED_RGBA_ASTC_4x3x3_OES: // 4-component ASTC, 4x3x3 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES: // 4-component ASTC, 4x3x3 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 3;
pFormatSize->blockDepth = 3;
break;
case GL_COMPRESSED_RGBA_ASTC_4x4x3_OES: // 4-component ASTC, 4x4x3 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES: // 4-component ASTC, 4x4x3 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 3;
break;
case GL_COMPRESSED_RGBA_ASTC_4x4x4_OES: // 4-component ASTC, 4x4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES: // 4-component ASTC, 4x4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 4;
break;
case GL_COMPRESSED_RGBA_ASTC_5x4x4_OES: // 4-component ASTC, 5x4x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES: // 4-component ASTC, 5x4x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 5;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 4;
break;
case GL_COMPRESSED_RGBA_ASTC_5x5x4_OES: // 4-component ASTC, 5x5x4 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES: // 4-component ASTC, 5x5x4 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 5;
pFormatSize->blockHeight = 5;
pFormatSize->blockDepth = 4;
break;
case GL_COMPRESSED_RGBA_ASTC_5x5x5_OES: // 4-component ASTC, 5x5x5 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES: // 4-component ASTC, 5x5x5 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 5;
pFormatSize->blockHeight = 5;
pFormatSize->blockDepth = 5;
break;
case GL_COMPRESSED_RGBA_ASTC_6x5x5_OES: // 4-component ASTC, 6x5x5 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES: // 4-component ASTC, 6x5x5 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 6;
pFormatSize->blockHeight = 5;
pFormatSize->blockDepth = 5;
break;
case GL_COMPRESSED_RGBA_ASTC_6x6x5_OES: // 4-component ASTC, 6x6x5 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES: // 4-component ASTC, 6x6x5 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 6;
pFormatSize->blockHeight = 6;
pFormatSize->blockDepth = 5;
break;
case GL_COMPRESSED_RGBA_ASTC_6x6x6_OES: // 4-component ASTC, 6x6x6 blocks, unsigned normalized
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES: // 4-component ASTC, 6x6x6 blocks, sRGB
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 6;
pFormatSize->blockHeight = 6;
pFormatSize->blockDepth = 6;
break;
//
// ATC
//
case GL_ATC_RGB_AMD: // 3-component, 4x4 blocks, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
case GL_ATC_RGBA_EXPLICIT_ALPHA_AMD: // 4-component, 4x4 blocks, unsigned normalized
case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD: // 4-component, 4x4 blocks, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_COMPRESSED_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 128;
pFormatSize->blockWidth = 4;
pFormatSize->blockHeight = 4;
pFormatSize->blockDepth = 1;
break;
//
// Palletized
//
case GL_PALETTE4_RGB8_OES: // 3-component 8:8:8, 4-bit palette, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PALETTIZED_BIT;
pFormatSize->paletteSizeInBits = 16 * 24;
pFormatSize->blockSizeInBits = 4;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_PALETTE4_RGBA8_OES: // 4-component 8:8:8:8, 4-bit palette, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PALETTIZED_BIT;
pFormatSize->paletteSizeInBits = 16 * 32;
pFormatSize->blockSizeInBits = 4;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_PALETTE4_R5_G6_B5_OES: // 3-component 5:6:5, 4-bit palette, unsigned normalized
case GL_PALETTE4_RGBA4_OES: // 4-component 4:4:4:4, 4-bit palette, unsigned normalized
case GL_PALETTE4_RGB5_A1_OES: // 4-component 5:5:5:1, 4-bit palette, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PALETTIZED_BIT;
pFormatSize->paletteSizeInBits = 16 * 16;
pFormatSize->blockSizeInBits = 4;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_PALETTE8_RGB8_OES: // 3-component 8:8:8, 8-bit palette, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PALETTIZED_BIT;
pFormatSize->paletteSizeInBits = 256 * 24;
pFormatSize->blockSizeInBits = 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_PALETTE8_RGBA8_OES: // 4-component 8:8:8:8, 8-bit palette, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PALETTIZED_BIT;
pFormatSize->paletteSizeInBits = 256 * 32;
pFormatSize->blockSizeInBits = 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_PALETTE8_R5_G6_B5_OES: // 3-component 5:6:5, 8-bit palette, unsigned normalized
case GL_PALETTE8_RGBA4_OES: // 4-component 4:4:4:4, 8-bit palette, unsigned normalized
case GL_PALETTE8_RGB5_A1_OES: // 4-component 5:5:5:1, 8-bit palette, unsigned normalized
pFormatSize->flags = KTX_FORMAT_SIZE_PALETTIZED_BIT;
pFormatSize->paletteSizeInBits = 256 * 16;
pFormatSize->blockSizeInBits = 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
//
// Depth/stencil
//
case GL_DEPTH_COMPONENT16:
pFormatSize->flags = KTX_FORMAT_SIZE_DEPTH_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 16;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
case GL_DEPTH_COMPONENT32F:
case GL_DEPTH_COMPONENT32F_NV:
pFormatSize->flags = KTX_FORMAT_SIZE_DEPTH_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 32;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_STENCIL_INDEX1:
pFormatSize->flags = KTX_FORMAT_SIZE_STENCIL_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 1;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_STENCIL_INDEX4:
pFormatSize->flags = KTX_FORMAT_SIZE_STENCIL_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 4;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_STENCIL_INDEX8:
pFormatSize->flags = KTX_FORMAT_SIZE_STENCIL_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_STENCIL_INDEX16:
pFormatSize->flags = KTX_FORMAT_SIZE_STENCIL_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 16;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_DEPTH24_STENCIL8:
pFormatSize->flags = KTX_FORMAT_SIZE_DEPTH_BIT | KTX_FORMAT_SIZE_STENCIL_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 32;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
case GL_DEPTH32F_STENCIL8:
case GL_DEPTH32F_STENCIL8_NV:
pFormatSize->flags = KTX_FORMAT_SIZE_DEPTH_BIT | KTX_FORMAT_SIZE_STENCIL_BIT;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 64;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
default:
pFormatSize->flags = 0;
pFormatSize->paletteSizeInBits = 0;
pFormatSize->blockSizeInBits = 0 * 8;
pFormatSize->blockWidth = 1;
pFormatSize->blockHeight = 1;
pFormatSize->blockDepth = 1;
break;
}
}
static inline GLint glGetInternalFormatFromVkFormat( VkFormat vkFormat )
{
switch ( vkFormat )
{
//
// 8 bits per component
//
case VK_FORMAT_R8_UNORM: return GL_R8; // 1-component, 8-bit unsigned normalized
case VK_FORMAT_R8G8_UNORM: return GL_RG8; // 2-component, 8-bit unsigned normalized
case VK_FORMAT_R8G8B8_UNORM: return GL_RGB8; // 3-component, 8-bit unsigned normalized
case VK_FORMAT_R8G8B8A8_UNORM: return GL_RGBA8; // 4-component, 8-bit unsigned normalized
case VK_FORMAT_R8_SNORM: return GL_R8_SNORM; // 1-component, 8-bit signed normalized
case VK_FORMAT_R8G8_SNORM: return GL_RG8_SNORM; // 2-component, 8-bit signed normalized
case VK_FORMAT_R8G8B8_SNORM: return GL_RGB8_SNORM; // 3-component, 8-bit signed normalized
case VK_FORMAT_R8G8B8A8_SNORM: return GL_RGBA8_SNORM; // 4-component, 8-bit signed normalized
case VK_FORMAT_R8_UINT: return GL_R8UI; // 1-component, 8-bit unsigned integer
case VK_FORMAT_R8G8_UINT: return GL_RG8UI; // 2-component, 8-bit unsigned integer
case VK_FORMAT_R8G8B8_UINT: return GL_RGB8UI; // 3-component, 8-bit unsigned integer
case VK_FORMAT_R8G8B8A8_UINT: return GL_RGBA8UI; // 4-component, 8-bit unsigned integer
case VK_FORMAT_R8_SINT: return GL_R8I; // 1-component, 8-bit signed integer
case VK_FORMAT_R8G8_SINT: return GL_RG8I; // 2-component, 8-bit signed integer
case VK_FORMAT_R8G8B8_SINT: return GL_RGB8I; // 3-component, 8-bit signed integer
case VK_FORMAT_R8G8B8A8_SINT: return GL_RGBA8I; // 4-component, 8-bit signed integer
case VK_FORMAT_R8_SRGB: return GL_SR8; // 1-component, 8-bit sRGB
case VK_FORMAT_R8G8_SRGB: return GL_SRG8; // 2-component, 8-bit sRGB
case VK_FORMAT_R8G8B8_SRGB: return GL_SRGB8; // 3-component, 8-bit sRGB
case VK_FORMAT_R8G8B8A8_SRGB: return GL_SRGB8_ALPHA8; // 4-component, 8-bit sRGB
//
// 16 bits per component
//
case VK_FORMAT_R16_UNORM: return GL_R16; // 1-component, 16-bit unsigned normalized
case VK_FORMAT_R16G16_UNORM: return GL_RG16; // 2-component, 16-bit unsigned normalized
case VK_FORMAT_R16G16B16_UNORM: return GL_RGB16; // 3-component, 16-bit unsigned normalized
case VK_FORMAT_R16G16B16A16_UNORM: return GL_RGBA16; // 4-component, 16-bit unsigned normalized
case VK_FORMAT_R16_SNORM: return GL_R16_SNORM; // 1-component, 16-bit signed normalized
case VK_FORMAT_R16G16_SNORM: return GL_RG16_SNORM; // 2-component, 16-bit signed normalized
case VK_FORMAT_R16G16B16_SNORM: return GL_RGB16_SNORM; // 3-component, 16-bit signed normalized
case VK_FORMAT_R16G16B16A16_SNORM: return GL_RGBA16_SNORM; // 4-component, 16-bit signed normalized
case VK_FORMAT_R16_UINT: return GL_R16UI; // 1-component, 16-bit unsigned integer
case VK_FORMAT_R16G16_UINT: return GL_RG16UI; // 2-component, 16-bit unsigned integer
case VK_FORMAT_R16G16B16_UINT: return GL_RGB16UI; // 3-component, 16-bit unsigned integer
case VK_FORMAT_R16G16B16A16_UINT: return GL_RGBA16UI; // 4-component, 16-bit unsigned integer
case VK_FORMAT_R16_SINT: return GL_R16I; // 1-component, 16-bit signed integer
case VK_FORMAT_R16G16_SINT: return GL_RG16I; // 2-component, 16-bit signed integer
case VK_FORMAT_R16G16B16_SINT: return GL_RGB16I; // 3-component, 16-bit signed integer
case VK_FORMAT_R16G16B16A16_SINT: return GL_RGBA16I; // 4-component, 16-bit signed integer
case VK_FORMAT_R16_SFLOAT: return GL_R16F; // 1-component, 16-bit floating-point
case VK_FORMAT_R16G16_SFLOAT: return GL_RG16F; // 2-component, 16-bit floating-point
case VK_FORMAT_R16G16B16_SFLOAT: return GL_RGB16F; // 3-component, 16-bit floating-point
case VK_FORMAT_R16G16B16A16_SFLOAT: return GL_RGBA16F; // 4-component, 16-bit floating-point
//
// 32 bits per component
//
case VK_FORMAT_R32_UINT: return GL_R32UI; // 1-component, 32-bit unsigned integer
case VK_FORMAT_R32G32_UINT: return GL_RG32UI; // 2-component, 32-bit unsigned integer
case VK_FORMAT_R32G32B32_UINT: return GL_RGB32UI; // 3-component, 32-bit unsigned integer
case VK_FORMAT_R32G32B32A32_UINT: return GL_RGBA32UI; // 4-component, 32-bit unsigned integer
case VK_FORMAT_R32_SINT: return GL_R32I; // 1-component, 32-bit signed integer
case VK_FORMAT_R32G32_SINT: return GL_RG32I; // 2-component, 32-bit signed integer
case VK_FORMAT_R32G32B32_SINT: return GL_RGB32I; // 3-component, 32-bit signed integer
case VK_FORMAT_R32G32B32A32_SINT: return GL_RGBA32I; // 4-component, 32-bit signed integer
case VK_FORMAT_R32_SFLOAT: return GL_R32F; // 1-component, 32-bit floating-point
case VK_FORMAT_R32G32_SFLOAT: return GL_RG32F; // 2-component, 32-bit floating-point
case VK_FORMAT_R32G32B32_SFLOAT: return GL_RGB32F; // 3-component, 32-bit floating-point
case VK_FORMAT_R32G32B32A32_SFLOAT: return GL_RGBA32F; // 4-component, 32-bit floating-point
//
// Packed
//
case VK_FORMAT_R5G5B5A1_UNORM_PACK16: return GL_RGB5; // 3-component 5:5:5, unsigned normalized
case VK_FORMAT_R5G6B5_UNORM_PACK16: return GL_RGB565; // 3-component 5:6:5, unsigned normalized
case VK_FORMAT_R4G4B4A4_UNORM_PACK16: return GL_RGBA4; // 4-component 4:4:4:4, unsigned normalized
case VK_FORMAT_A1R5G5B5_UNORM_PACK16: return GL_RGB5_A1; // 4-component 5:5:5:1, unsigned normalized
case VK_FORMAT_A2R10G10B10_UNORM_PACK32: return GL_RGB10_A2; // 4-component 10:10:10:2, unsigned normalized
case VK_FORMAT_A2R10G10B10_UINT_PACK32: return GL_RGB10_A2UI; // 4-component 10:10:10:2, unsigned integer
case VK_FORMAT_B10G11R11_UFLOAT_PACK32: return GL_R11F_G11F_B10F; // 3-component 11:11:10, floating-point
case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32: return GL_RGB9_E5; // 3-component/exp 9:9:9/5, floating-point
//
// S3TC/DXT/BC
//
case VK_FORMAT_BC1_RGB_UNORM_BLOCK: return GL_COMPRESSED_RGB_S3TC_DXT1_EXT; // line through 3D space, 4x4 blocks, unsigned normalized
case VK_FORMAT_BC1_RGBA_UNORM_BLOCK: return GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; // line through 3D space plus 1-bit alpha, 4x4 blocks, unsigned normalized
case VK_FORMAT_BC2_UNORM_BLOCK: return GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; // line through 3D space plus line through 1D space, 4x4 blocks, unsigned normalized
case VK_FORMAT_BC3_UNORM_BLOCK: return GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; // line through 3D space plus 4-bit alpha, 4x4 blocks, unsigned normalized
case VK_FORMAT_BC1_RGB_SRGB_BLOCK: return GL_COMPRESSED_SRGB_S3TC_DXT1_EXT; // line through 3D space, 4x4 blocks, sRGB
case VK_FORMAT_BC1_RGBA_SRGB_BLOCK: return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT; // line through 3D space plus 1-bit alpha, 4x4 blocks, sRGB
case VK_FORMAT_BC2_SRGB_BLOCK: return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT; // line through 3D space plus line through 1D space, 4x4 blocks, sRGB
case VK_FORMAT_BC3_SRGB_BLOCK: return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT; // line through 3D space plus 4-bit alpha, 4x4 blocks, sRGB
case VK_FORMAT_BC4_UNORM_BLOCK: return GL_COMPRESSED_RED_RGTC1; // line through 1D space, 4x4 blocks, unsigned normalized
case VK_FORMAT_BC5_UNORM_BLOCK: return GL_COMPRESSED_RG_RGTC2; // two lines through 1D space, 4x4 blocks, unsigned normalized
case VK_FORMAT_BC4_SNORM_BLOCK: return GL_COMPRESSED_SIGNED_RED_RGTC1; // line through 1D space, 4x4 blocks, signed normalized
case VK_FORMAT_BC5_SNORM_BLOCK: return GL_COMPRESSED_SIGNED_RG_RGTC2; // two lines through 1D space, 4x4 blocks, signed normalized
case VK_FORMAT_BC6H_UFLOAT_BLOCK: return GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT; // 3-component, 4x4 blocks, unsigned floating-point
case VK_FORMAT_BC6H_SFLOAT_BLOCK: return GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT; // 3-component, 4x4 blocks, signed floating-point
case VK_FORMAT_BC7_UNORM_BLOCK: return GL_COMPRESSED_RGBA_BPTC_UNORM; // 4-component, 4x4 blocks, unsigned normalized
case VK_FORMAT_BC7_SRGB_BLOCK: return GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM; // 4-component, 4x4 blocks, sRGB
//
// ETC
//
case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK: return GL_COMPRESSED_RGB8_ETC2; // 3-component ETC2, 4x4 blocks, unsigned normalized
case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK: return GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2; // 4-component ETC2 with 1-bit alpha, 4x4 blocks, unsigned normalized
case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK: return GL_COMPRESSED_RGBA8_ETC2_EAC; // 4-component ETC2, 4x4 blocks, unsigned normalized
case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ETC2; // 3-component ETC2, 4x4 blocks, sRGB
case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2; // 4-component ETC2 with 1-bit alpha, 4x4 blocks, sRGB
case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC; // 4-component ETC2, 4x4 blocks, sRGB
case VK_FORMAT_EAC_R11_UNORM_BLOCK: return GL_COMPRESSED_R11_EAC; // 1-component ETC, 4x4 blocks, unsigned normalized
case VK_FORMAT_EAC_R11G11_UNORM_BLOCK: return GL_COMPRESSED_RG11_EAC; // 2-component ETC, 4x4 blocks, unsigned normalized
case VK_FORMAT_EAC_R11_SNORM_BLOCK: return GL_COMPRESSED_SIGNED_R11_EAC; // 1-component ETC, 4x4 blocks, signed normalized
case VK_FORMAT_EAC_R11G11_SNORM_BLOCK: return GL_COMPRESSED_SIGNED_RG11_EAC; // 2-component ETC, 4x4 blocks, signed normalized
//
// PVRTC
//
case VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG: return GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG; // 3- or 4-component PVRTC, 16x8 blocks, unsigned normalized
case VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG: return GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; // 3- or 4-component PVRTC, 8x8 blocks, unsigned normalized
case VK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMG: return GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG; // 3- or 4-component PVRTC, 16x8 blocks, unsigned normalized
case VK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG: return GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG; // 3- or 4-component PVRTC, 4x4 blocks, unsigned normalized
case VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG: return GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT; // 4-component PVRTC, 16x8 blocks, sRGB
case VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG: return GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT; // 4-component PVRTC, 8x8 blocks, sRGB
case VK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMG: return GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV2_IMG; // 4-component PVRTC, 8x4 blocks, sRGB
case VK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMG: return GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV2_IMG; // 4-component PVRTC, 4x4 blocks, sRGB
//
// ASTC
//
case VK_FORMAT_ASTC_4x4_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_4x4_KHR; // 4-component ASTC, 4x4 blocks, unsigned normalized
case VK_FORMAT_ASTC_5x4_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_5x4_KHR; // 4-component ASTC, 5x4 blocks, unsigned normalized
case VK_FORMAT_ASTC_5x5_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_5x5_KHR; // 4-component ASTC, 5x5 blocks, unsigned normalized
case VK_FORMAT_ASTC_6x5_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_6x5_KHR; // 4-component ASTC, 6x5 blocks, unsigned normalized
case VK_FORMAT_ASTC_6x6_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_6x6_KHR; // 4-component ASTC, 6x6 blocks, unsigned normalized
case VK_FORMAT_ASTC_8x5_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_8x5_KHR; // 4-component ASTC, 8x5 blocks, unsigned normalized
case VK_FORMAT_ASTC_8x6_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_8x6_KHR; // 4-component ASTC, 8x6 blocks, unsigned normalized
case VK_FORMAT_ASTC_8x8_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_8x8_KHR; // 4-component ASTC, 8x8 blocks, unsigned normalized
case VK_FORMAT_ASTC_10x5_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_10x5_KHR; // 4-component ASTC, 10x5 blocks, unsigned normalized
case VK_FORMAT_ASTC_10x6_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_10x6_KHR; // 4-component ASTC, 10x6 blocks, unsigned normalized
case VK_FORMAT_ASTC_10x8_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_10x8_KHR; // 4-component ASTC, 10x8 blocks, unsigned normalized
case VK_FORMAT_ASTC_10x10_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_10x10_KHR; // 4-component ASTC, 10x10 blocks, unsigned normalized
case VK_FORMAT_ASTC_12x10_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_12x10_KHR; // 4-component ASTC, 12x10 blocks, unsigned normalized
case VK_FORMAT_ASTC_12x12_UNORM_BLOCK: return GL_COMPRESSED_RGBA_ASTC_12x12_KHR; // 4-component ASTC, 12x12 blocks, unsigned normalized
case VK_FORMAT_ASTC_4x4_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR; // 4-component ASTC, 4x4 blocks, sRGB
case VK_FORMAT_ASTC_5x4_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR; // 4-component ASTC, 5x4 blocks, sRGB
case VK_FORMAT_ASTC_5x5_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR; // 4-component ASTC, 5x5 blocks, sRGB
case VK_FORMAT_ASTC_6x5_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR; // 4-component ASTC, 6x5 blocks, sRGB
case VK_FORMAT_ASTC_6x6_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR; // 4-component ASTC, 6x6 blocks, sRGB
case VK_FORMAT_ASTC_8x5_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR; // 4-component ASTC, 8x5 blocks, sRGB
case VK_FORMAT_ASTC_8x6_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR; // 4-component ASTC, 8x6 blocks, sRGB
case VK_FORMAT_ASTC_8x8_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR; // 4-component ASTC, 8x8 blocks, sRGB
case VK_FORMAT_ASTC_10x5_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR; // 4-component ASTC, 10x5 blocks, sRGB
case VK_FORMAT_ASTC_10x6_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR; // 4-component ASTC, 10x6 blocks, sRGB
case VK_FORMAT_ASTC_10x8_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR; // 4-component ASTC, 10x8 blocks, sRGB
case VK_FORMAT_ASTC_10x10_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR; // 4-component ASTC, 10x10 blocks, sRGB
case VK_FORMAT_ASTC_12x10_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR; // 4-component ASTC, 12x10 blocks, sRGB
case VK_FORMAT_ASTC_12x12_SRGB_BLOCK: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR; // 4-component ASTC, 12x12 blocks, sRGB
// XXX FIXME Update once Vulkan ASTC HDR & 3D extensions are released.
#if 0
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_3x3x3_OES; // 4-component ASTC, 3x3x3 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_4x3x3_OES; // 4-component ASTC, 4x3x3 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_4x4x3_OES; // 4-component ASTC, 4x4x3 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_4x4x4_OES; // 4-component ASTC, 4x4x4 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_5x4x4_OES; // 4-component ASTC, 5x4x4 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_5x5x4_OES; // 4-component ASTC, 5x5x4 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_5x5x5_OES; // 4-component ASTC, 5x5x5 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_6x5x5_OES; // 4-component ASTC, 6x5x5 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_6x6x5_OES; // 4-component ASTC, 6x6x5 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_RGBA_ASTC_6x6x6_OES; // 4-component ASTC, 6x6x6 blocks, unsigned normalized
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES; // 4-component ASTC, 3x3x3 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES; // 4-component ASTC, 4x3x3 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES; // 4-component ASTC, 4x4x3 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES; // 4-component ASTC, 4x4x4 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES; // 4-component ASTC, 5x4x4 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES; // 4-component ASTC, 5x5x4 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES; // 4-component ASTC, 5x5x5 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES; // 4-component ASTC, 6x5x5 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES; // 4-component ASTC, 6x6x5 blocks, sRGB
case VK_FORMAT_UNDEFINED: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES; // 4-component ASTC, 6x6x6 blocks, sRGB
#endif
//
// Depth/stencil
//
case VK_FORMAT_D16_UNORM: return GL_DEPTH_COMPONENT16;
case VK_FORMAT_X8_D24_UNORM_PACK32: return GL_DEPTH_COMPONENT24;
case VK_FORMAT_D32_SFLOAT: return GL_DEPTH_COMPONENT32F;
case VK_FORMAT_S8_UINT: return GL_STENCIL_INDEX8;
case VK_FORMAT_D24_UNORM_S8_UINT: return GL_DEPTH24_STENCIL8;
case VK_FORMAT_D32_SFLOAT_S8_UINT: return GL_DEPTH32F_STENCIL8;
default: return GL_INVALID_VALUE;
}
}
#endif // !GL_FORMAT_H
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