kc3-lang/angle/src/libANGLE/renderer/load_functions_table_autogen.cpp

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  Commit

• Hash : 02f075c8
  Author :
  Date : 2016-12-22T14:55:46
  

  Support EXT_texture_compression_s3tc_srgb on DX11
  
  Also passes WEBGL_compressed_texture_s3tc_srgb conformance on WebGL 1/2 on DX11
  
  BUG=angleproject:1553
  BUG=chromium:630498
  
  Change-Id: If1d17b54b1e8b998410079fd217626410015d7f1
  Reviewed-on: https://chromium-review.googlesource.com/422585
  Commit-Queue: Kai Ninomiya <kainino@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/load_functions_table_autogen.cpp

• // GENERATED FILE - DO NOT EDIT.
  // Generated by gen_load_functions_table.py using data from load_functions_data.json
  //
  // Copyright 2016 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // load_functions_table:
  //   Contains the GetLoadFunctionsMap for texture_format_util.h
  //
  
  #include "libANGLE/renderer/load_functions_table.h"
  
  #include "image_util/copyimage.h"
  #include "image_util/generatemip.h"
  #include "image_util/loadimage.h"
  
  using namespace rx;
  
  namespace angle
  {
  
  namespace
  {
  
  // ES3 image loading functions vary based on:
  //    - the GL internal format (supplied to glTex*Image*D)
  //    - the GL data type given (supplied to glTex*Image*D)
  //    - the target DXGI_FORMAT that the image will be loaded into (which is chosen based on the D3D
  //    device's capabilities)
  // This map type determines which loading function to use, based on these three parameters.
  // Source formats and types are taken from Tables 3.2 and 3.3 of the ES 3 spec.
  void UnimplementedLoadFunction(size_t width,
                                 size_t height,
                                 size_t depth,
                                 const uint8_t *input,
                                 size_t inputRowPitch,
                                 size_t inputDepthPitch,
                                 uint8_t *output,
                                 size_t outputRowPitch,
                                 size_t outputDepthPitch)
  {
      UNIMPLEMENTED();
  }
  
  void UnreachableLoadFunction(size_t width,
                               size_t height,
                               size_t depth,
                               const uint8_t *input,
                               size_t inputRowPitch,
                               size_t inputDepthPitch,
                               uint8_t *output,
                               size_t outputRowPitch,
                               size_t outputDepthPitch)
  {
      UNREACHABLE();
  }
  
  LoadImageFunctionInfo ALPHA_to_R16G16B16A16_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadA16FToRGBA16F, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadA16FToRGBA16F, true);
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo ALPHA_to_R32G32B32A32_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadA32FToRGBA32F, true);
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo ALPHA_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo ALPHA16F_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadA16FToRGBA16F, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadA16FToRGBA16F, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo ALPHA32F_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadA32FToRGBA32F, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo ALPHA8_EXT_to_A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo ALPHA8_EXT_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadA8ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo BGR565_ANGLEX_to_B5G6R5_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 1>, false);
          case GL_UNSIGNED_SHORT_5_6_5:
              return LoadImageFunctionInfo(LoadRGB565ToBGR565, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo BGR5_A1_ANGLEX_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 4>, false);
          case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT:
              return LoadImageFunctionInfo(LoadRGB5A1ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo BGRA4_ANGLEX_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 4>, false);
          case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT:
              return LoadImageFunctionInfo(LoadRGBA4ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo BGRA8_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo BGRA_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_R11_EAC_to_R8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadEACR11ToR8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_RG11_EAC_to_R8G8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadEACRG11ToRG8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_RGB8_ETC2_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadETC2RGB8ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadETC2RGB8A1ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_RGBA8_ETC2_EAC_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadETC2RGBA8ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_RGBA_S3TC_DXT1_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadCompressedToNative<4, 4, 8>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_RGBA_S3TC_DXT3_ANGLE_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadCompressedToNative<4, 4, 16>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_RGBA_S3TC_DXT5_ANGLE_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadCompressedToNative<4, 4, 16>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_RGB_S3TC_DXT1_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadCompressedToNative<4, 4, 8>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SIGNED_R11_EAC_to_R8_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadEACR11SToR8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SIGNED_RG11_EAC_to_R8G8_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadEACRG11SToRG8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SRGB8_ALPHA8_ETC2_EAC_to_R8G8B8A8_UNORM_SRGB(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadETC2SRGBA8ToSRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SRGB8_ETC2_to_R8G8B8A8_UNORM_SRGB(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadETC2SRGB8ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2_to_R8G8B8A8_UNORM_SRGB(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadETC2SRGB8A1ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadCompressedToNative<4, 4, 8>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadCompressedToNative<4, 4, 16>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadCompressedToNative<4, 4, 16>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo COMPRESSED_SRGB_S3TC_DXT1_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadCompressedToNative<4, 4, 8>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo DEPTH24_STENCIL8_to_D24_UNORM_S8_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT_24_8:
              return LoadImageFunctionInfo(LoadR32ToR24G8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo DEPTH32F_STENCIL8_to_D32_FLOAT_S8X24_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
              return LoadImageFunctionInfo(LoadD32FS8X24ToD32FS8X24, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo DEPTH_COMPONENT16_to_D16_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT:
              return LoadImageFunctionInfo(LoadR32ToR16, true);
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo DEPTH_COMPONENT24_to_D24_UNORM_S8_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT:
              return LoadImageFunctionInfo(LoadR32ToR24G8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo DEPTH_COMPONENT32F_to_D32_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadD32FToD32F, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo DEPTH_COMPONENT32_OES_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT:
              return LoadImageFunctionInfo(LoadR32ToR24G8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo ETC1_RGB8_LOSSY_DECODE_ANGLE_to_BC1_RGB_UNORM_BLOCK(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadETC1RGB8ToBC1, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo ETC1_RGB8_OES_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadETC1RGB8ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE_to_R16G16B16A16_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadL16FToRGBA16F, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadL16FToRGBA16F, true);
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE_to_R32G32B32A32_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadL32FToRGBA32F, true);
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE16F_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadL16FToRGBA16F, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadL16FToRGBA16F, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE32F_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadL32FToRGBA32F, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE8_ALPHA8_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadLA8ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE8_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadL8ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE_ALPHA_to_R16G16B16A16_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadLA16FToRGBA16F, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadLA16FToRGBA16F, true);
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE_ALPHA_to_R32G32B32A32_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadLA32FToRGBA32F, true);
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE_ALPHA_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE_ALPHA16F_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadLA16FToRGBA16F, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadLA16FToRGBA16F, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo LUMINANCE_ALPHA32F_EXT_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadLA32FToRGBA32F, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R11F_G11F_B10F_to_R11G11B10_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadRGB32FToRG11B10F, true);
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadRGB16FToRG11B10F, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadRGB16FToRG11B10F, true);
          case GL_UNSIGNED_INT_10F_11F_11F_REV:
              return LoadImageFunctionInfo(LoadToNative<GLuint, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R16F_to_R16_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(Load32FTo16F<1>, true);
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadToNative<GLhalf, 1>, false);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadToNative<GLhalf, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R16I_to_R16_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLshort, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R16UI_to_R16_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R16_EXT_to_R16_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R16_SNORM_EXT_to_R16_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R32F_to_R32_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadToNative<GLfloat, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R32I_to_R32_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_INT:
              return LoadImageFunctionInfo(LoadToNative<GLint, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R32UI_to_R32_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT:
              return LoadImageFunctionInfo(LoadToNative<GLuint, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R8_to_R8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R8I_to_R8_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLbyte, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R8UI_to_R8_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo R8_SNORM_to_R8_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLbyte, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG16F_to_R16G16_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(Load32FTo16F<2>, true);
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadToNative<GLhalf, 2>, false);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadToNative<GLhalf, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG16I_to_R16G16_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLshort, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG16UI_to_R16G16_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG16_EXT_to_R16G16_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG16_SNORM_EXT_to_R16G16_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG32F_to_R32G32_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadToNative<GLfloat, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG32I_to_R32G32_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_INT:
              return LoadImageFunctionInfo(LoadToNative<GLint, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG32UI_to_R32G32_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT:
              return LoadImageFunctionInfo(LoadToNative<GLuint, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG8_to_R8G8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG8I_to_R8G8_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLbyte, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG8UI_to_R8G8_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RG8_SNORM_to_R8G8_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLbyte, 2>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          case GL_UNSIGNED_SHORT_5_6_5:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB10_A2_to_R10G10B10A2_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT_2_10_10_10_REV:
              return LoadImageFunctionInfo(LoadToNative<GLuint, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB10_A2UI_to_R10G10B10A2_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT_2_10_10_10_REV:
              return LoadImageFunctionInfo(LoadToNative<GLuint, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB16F_to_R16G16B16A16_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadRGB32FToRGBA16F, true);
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadToNative3To4<GLhalf, gl::Float16One>, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadToNative3To4<GLhalf, gl::Float16One>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB16I_to_R16G16B16A16_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_SHORT:
              return LoadImageFunctionInfo(LoadToNative3To4<GLshort, 0x0001>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB16UI_to_R16G16B16A16_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative3To4<GLushort, 0x0001>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB16_EXT_to_R16G16B16A16_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative3To4<GLushort, 0xFFFF>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB16_SNORM_EXT_to_R16G16B16A16_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_SHORT:
              return LoadImageFunctionInfo(LoadToNative3To4<GLushort, 0x7FFF>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB32F_to_R32G32B32A32_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadToNative3To4<GLfloat, gl::Float32One>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB32I_to_R32G32B32A32_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_INT:
              return LoadImageFunctionInfo(LoadToNative3To4<GLint, 0x00000001>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB32UI_to_R32G32B32A32_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT:
              return LoadImageFunctionInfo(LoadToNative3To4<GLuint, 0x00000001>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB565_to_B5G6R5_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadRGB8ToBGR565, true);
          case GL_UNSIGNED_SHORT_5_6_5:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB565_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative3To4<GLubyte, 0xFF>, true);
          case GL_UNSIGNED_SHORT_5_6_5:
              return LoadImageFunctionInfo(LoadR5G6B5ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB5_A1_to_B5G5R5A1_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadRGBA8ToBGR5A1, true);
          case GL_UNSIGNED_INT_2_10_10_10_REV:
              return LoadImageFunctionInfo(LoadRGB10A2ToBGR5A1, true);
          case GL_UNSIGNED_SHORT_5_5_5_1:
              return LoadImageFunctionInfo(LoadRGB5A1ToA1RGB5, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB5_A1_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 4>, false);
          case GL_UNSIGNED_INT_2_10_10_10_REV:
              return LoadImageFunctionInfo(LoadRGB10A2ToRGBA8, true);
          case GL_UNSIGNED_SHORT_5_5_5_1:
              return LoadImageFunctionInfo(LoadRGB5A1ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB8_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative3To4<GLubyte, 0xFF>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB8I_to_R8G8B8A8_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_BYTE:
              return LoadImageFunctionInfo(LoadToNative3To4<GLbyte, 0x01>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB8UI_to_R8G8B8A8_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative3To4<GLubyte, 0x01>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB8_SNORM_to_R8G8B8A8_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_BYTE:
              return LoadImageFunctionInfo(LoadToNative3To4<GLbyte, 0x7F>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGB9_E5_to_R9G9B9E5_SHAREDEXP(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadRGB32FToRGB9E5, true);
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadRGB16FToRGB9E5, true);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadRGB16FToRGB9E5, true);
          case GL_UNSIGNED_INT_5_9_9_9_REV:
              return LoadImageFunctionInfo(LoadToNative<GLuint, 1>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          case GL_UNSIGNED_SHORT_4_4_4_4:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          case GL_UNSIGNED_SHORT_5_5_5_1:
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA16F_to_R16G16B16A16_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(Load32FTo16F<4>, true);
          case GL_HALF_FLOAT:
              return LoadImageFunctionInfo(LoadToNative<GLhalf, 4>, false);
          case GL_HALF_FLOAT_OES:
              return LoadImageFunctionInfo(LoadToNative<GLhalf, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA16I_to_R16G16B16A16_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLshort, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA16UI_to_R16G16B16A16_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA16_EXT_to_R16G16B16A16_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA16_SNORM_EXT_to_R16G16B16A16_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_SHORT:
              return LoadImageFunctionInfo(LoadToNative<GLushort, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA32F_to_R32G32B32A32_FLOAT(GLenum type)
  {
      switch (type)
      {
          case GL_FLOAT:
              return LoadImageFunctionInfo(LoadToNative<GLfloat, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA32I_to_R32G32B32A32_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_INT:
              return LoadImageFunctionInfo(LoadToNative<GLint, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA32UI_to_R32G32B32A32_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_INT:
              return LoadImageFunctionInfo(LoadToNative<GLuint, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA4_to_B4G4R4A4_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadRGBA8ToBGRA4, true);
          case GL_UNSIGNED_SHORT_4_4_4_4:
              return LoadImageFunctionInfo(LoadRGBA4ToARGB4, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA4_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 4>, false);
          case GL_UNSIGNED_SHORT_4_4_4_4:
              return LoadImageFunctionInfo(LoadRGBA4ToRGBA8, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA8_to_R8G8B8A8_UNORM(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA8I_to_R8G8B8A8_SINT(GLenum type)
  {
      switch (type)
      {
          case GL_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLbyte, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA8UI_to_R8G8B8A8_UINT(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo RGBA8_SNORM_to_R8G8B8A8_SNORM(GLenum type)
  {
      switch (type)
      {
          case GL_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLbyte, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo SRGB8_to_R8G8B8A8_UNORM_SRGB(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative3To4<GLubyte, 0xFF>, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo SRGB8_ALPHA8_to_R8G8B8A8_UNORM_SRGB(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(LoadToNative<GLubyte, 4>, false);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  LoadImageFunctionInfo STENCIL_INDEX8_to_default(GLenum type)
  {
      switch (type)
      {
          case GL_UNSIGNED_BYTE:
              return LoadImageFunctionInfo(UnimplementedLoadFunction, true);
          default:
              UNREACHABLE();
              return LoadImageFunctionInfo(UnreachableLoadFunction, true);
      }
  }
  
  }  // namespace
  
  LoadFunctionMap GetLoadFunctionsMap(GLenum internalFormat, Format::ID angleFormat)
  {
      // clang-format off
      switch (internalFormat)
      {
          case GL_ALPHA:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_FLOAT:
                      return ALPHA_to_R16G16B16A16_FLOAT;
                  case Format::ID::R32G32B32A32_FLOAT:
                      return ALPHA_to_R32G32B32A32_FLOAT;
                  default:
                      return ALPHA_to_default;
              }
          }
          case GL_ALPHA16F_EXT:
              return ALPHA16F_EXT_to_default;
          case GL_ALPHA32F_EXT:
              return ALPHA32F_EXT_to_default;
          case GL_ALPHA8_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::A8_UNORM:
                      return ALPHA8_EXT_to_A8_UNORM;
                  case Format::ID::R8G8B8A8_UNORM:
                      return ALPHA8_EXT_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_BGR565_ANGLEX:
          {
              switch (angleFormat)
              {
                  case Format::ID::B5G6R5_UNORM:
                      return BGR565_ANGLEX_to_B5G6R5_UNORM;
                  default:
                      break;
              }
          }
          case GL_BGR5_A1_ANGLEX:
              return BGR5_A1_ANGLEX_to_default;
          case GL_BGRA4_ANGLEX:
              return BGRA4_ANGLEX_to_default;
          case GL_BGRA8_EXT:
              return BGRA8_EXT_to_default;
          case GL_BGRA_EXT:
              return BGRA_EXT_to_default;
          case GL_COMPRESSED_R11_EAC:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8_UNORM:
                      return COMPRESSED_R11_EAC_to_R8_UNORM;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_RG11_EAC:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8_UNORM:
                      return COMPRESSED_RG11_EAC_to_R8G8_UNORM;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_RGB8_ETC2:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM:
                      return COMPRESSED_RGB8_ETC2_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM:
                      return COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_RGBA8_ETC2_EAC:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM:
                      return COMPRESSED_RGBA8_ETC2_EAC_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
              return COMPRESSED_RGBA_S3TC_DXT1_EXT_to_default;
          case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE:
              return COMPRESSED_RGBA_S3TC_DXT3_ANGLE_to_default;
          case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE:
              return COMPRESSED_RGBA_S3TC_DXT5_ANGLE_to_default;
          case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
              return COMPRESSED_RGB_S3TC_DXT1_EXT_to_default;
          case GL_COMPRESSED_SIGNED_R11_EAC:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8_SNORM:
                      return COMPRESSED_SIGNED_R11_EAC_to_R8_SNORM;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_SIGNED_RG11_EAC:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8_SNORM:
                      return COMPRESSED_SIGNED_RG11_EAC_to_R8G8_SNORM;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM_SRGB:
                      return COMPRESSED_SRGB8_ALPHA8_ETC2_EAC_to_R8G8B8A8_UNORM_SRGB;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_SRGB8_ETC2:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM_SRGB:
                      return COMPRESSED_SRGB8_ETC2_to_R8G8B8A8_UNORM_SRGB;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM_SRGB:
                      return COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2_to_R8G8B8A8_UNORM_SRGB;
                  default:
                      break;
              }
          }
          case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
              return COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT_to_default;
          case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
              return COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT_to_default;
          case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
              return COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT_to_default;
          case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
              return COMPRESSED_SRGB_S3TC_DXT1_EXT_to_default;
          case GL_DEPTH24_STENCIL8:
          {
              switch (angleFormat)
              {
                  case Format::ID::D24_UNORM_S8_UINT:
                      return DEPTH24_STENCIL8_to_D24_UNORM_S8_UINT;
                  default:
                      break;
              }
          }
          case GL_DEPTH32F_STENCIL8:
          {
              switch (angleFormat)
              {
                  case Format::ID::D32_FLOAT_S8X24_UINT:
                      return DEPTH32F_STENCIL8_to_D32_FLOAT_S8X24_UINT;
                  default:
                      break;
              }
          }
          case GL_DEPTH_COMPONENT16:
          {
              switch (angleFormat)
              {
                  case Format::ID::D16_UNORM:
                      return DEPTH_COMPONENT16_to_D16_UNORM;
                  default:
                      break;
              }
          }
          case GL_DEPTH_COMPONENT24:
          {
              switch (angleFormat)
              {
                  case Format::ID::D24_UNORM_S8_UINT:
                      return DEPTH_COMPONENT24_to_D24_UNORM_S8_UINT;
                  default:
                      break;
              }
          }
          case GL_DEPTH_COMPONENT32F:
          {
              switch (angleFormat)
              {
                  case Format::ID::D32_FLOAT:
                      return DEPTH_COMPONENT32F_to_D32_FLOAT;
                  default:
                      break;
              }
          }
          case GL_DEPTH_COMPONENT32_OES:
              return DEPTH_COMPONENT32_OES_to_default;
          case GL_ETC1_RGB8_LOSSY_DECODE_ANGLE:
          {
              switch (angleFormat)
              {
                  case Format::ID::BC1_RGB_UNORM_BLOCK:
                      return ETC1_RGB8_LOSSY_DECODE_ANGLE_to_BC1_RGB_UNORM_BLOCK;
                  default:
                      break;
              }
          }
          case GL_ETC1_RGB8_OES:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM:
                      return ETC1_RGB8_OES_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_LUMINANCE:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_FLOAT:
                      return LUMINANCE_to_R16G16B16A16_FLOAT;
                  case Format::ID::R32G32B32A32_FLOAT:
                      return LUMINANCE_to_R32G32B32A32_FLOAT;
                  default:
                      return LUMINANCE_to_default;
              }
          }
          case GL_LUMINANCE16F_EXT:
              return LUMINANCE16F_EXT_to_default;
          case GL_LUMINANCE32F_EXT:
              return LUMINANCE32F_EXT_to_default;
          case GL_LUMINANCE8_ALPHA8_EXT:
              return LUMINANCE8_ALPHA8_EXT_to_default;
          case GL_LUMINANCE8_EXT:
              return LUMINANCE8_EXT_to_default;
          case GL_LUMINANCE_ALPHA:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_FLOAT:
                      return LUMINANCE_ALPHA_to_R16G16B16A16_FLOAT;
                  case Format::ID::R32G32B32A32_FLOAT:
                      return LUMINANCE_ALPHA_to_R32G32B32A32_FLOAT;
                  default:
                      return LUMINANCE_ALPHA_to_default;
              }
          }
          case GL_LUMINANCE_ALPHA16F_EXT:
              return LUMINANCE_ALPHA16F_EXT_to_default;
          case GL_LUMINANCE_ALPHA32F_EXT:
              return LUMINANCE_ALPHA32F_EXT_to_default;
          case GL_R11F_G11F_B10F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R11G11B10_FLOAT:
                      return R11F_G11F_B10F_to_R11G11B10_FLOAT;
                  default:
                      break;
              }
          }
          case GL_R16F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16_FLOAT:
                      return R16F_to_R16_FLOAT;
                  default:
                      break;
              }
          }
          case GL_R16I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16_SINT:
                      return R16I_to_R16_SINT;
                  default:
                      break;
              }
          }
          case GL_R16UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16_UINT:
                      return R16UI_to_R16_UINT;
                  default:
                      break;
              }
          }
          case GL_R16_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16_UNORM:
                      return R16_EXT_to_R16_UNORM;
                  default:
                      break;
              }
          }
          case GL_R16_SNORM_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16_SNORM:
                      return R16_SNORM_EXT_to_R16_SNORM;
                  default:
                      break;
              }
          }
          case GL_R32F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32_FLOAT:
                      return R32F_to_R32_FLOAT;
                  default:
                      break;
              }
          }
          case GL_R32I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32_SINT:
                      return R32I_to_R32_SINT;
                  default:
                      break;
              }
          }
          case GL_R32UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32_UINT:
                      return R32UI_to_R32_UINT;
                  default:
                      break;
              }
          }
          case GL_R8:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8_UNORM:
                      return R8_to_R8_UNORM;
                  default:
                      break;
              }
          }
          case GL_R8I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8_SINT:
                      return R8I_to_R8_SINT;
                  default:
                      break;
              }
          }
          case GL_R8UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8_UINT:
                      return R8UI_to_R8_UINT;
                  default:
                      break;
              }
          }
          case GL_R8_SNORM:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8_SNORM:
                      return R8_SNORM_to_R8_SNORM;
                  default:
                      break;
              }
          }
          case GL_RG16F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16_FLOAT:
                      return RG16F_to_R16G16_FLOAT;
                  default:
                      break;
              }
          }
          case GL_RG16I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16_SINT:
                      return RG16I_to_R16G16_SINT;
                  default:
                      break;
              }
          }
          case GL_RG16UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16_UINT:
                      return RG16UI_to_R16G16_UINT;
                  default:
                      break;
              }
          }
          case GL_RG16_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16_UNORM:
                      return RG16_EXT_to_R16G16_UNORM;
                  default:
                      break;
              }
          }
          case GL_RG16_SNORM_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16_SNORM:
                      return RG16_SNORM_EXT_to_R16G16_SNORM;
                  default:
                      break;
              }
          }
          case GL_RG32F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32_FLOAT:
                      return RG32F_to_R32G32_FLOAT;
                  default:
                      break;
              }
          }
          case GL_RG32I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32_SINT:
                      return RG32I_to_R32G32_SINT;
                  default:
                      break;
              }
          }
          case GL_RG32UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32_UINT:
                      return RG32UI_to_R32G32_UINT;
                  default:
                      break;
              }
          }
          case GL_RG8:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8_UNORM:
                      return RG8_to_R8G8_UNORM;
                  default:
                      break;
              }
          }
          case GL_RG8I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8_SINT:
                      return RG8I_to_R8G8_SINT;
                  default:
                      break;
              }
          }
          case GL_RG8UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8_UINT:
                      return RG8UI_to_R8G8_UINT;
                  default:
                      break;
              }
          }
          case GL_RG8_SNORM:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8_SNORM:
                      return RG8_SNORM_to_R8G8_SNORM;
                  default:
                      break;
              }
          }
          case GL_RGB:
              return RGB_to_default;
          case GL_RGB10_A2:
          {
              switch (angleFormat)
              {
                  case Format::ID::R10G10B10A2_UNORM:
                      return RGB10_A2_to_R10G10B10A2_UNORM;
                  default:
                      break;
              }
          }
          case GL_RGB10_A2UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R10G10B10A2_UINT:
                      return RGB10_A2UI_to_R10G10B10A2_UINT;
                  default:
                      break;
              }
          }
          case GL_RGB16F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_FLOAT:
                      return RGB16F_to_R16G16B16A16_FLOAT;
                  default:
                      break;
              }
          }
          case GL_RGB16I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_SINT:
                      return RGB16I_to_R16G16B16A16_SINT;
                  default:
                      break;
              }
          }
          case GL_RGB16UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_UINT:
                      return RGB16UI_to_R16G16B16A16_UINT;
                  default:
                      break;
              }
          }
          case GL_RGB16_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_UNORM:
                      return RGB16_EXT_to_R16G16B16A16_UNORM;
                  default:
                      break;
              }
          }
          case GL_RGB16_SNORM_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_SNORM:
                      return RGB16_SNORM_EXT_to_R16G16B16A16_SNORM;
                  default:
                      break;
              }
          }
          case GL_RGB32F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32B32A32_FLOAT:
                      return RGB32F_to_R32G32B32A32_FLOAT;
                  default:
                      break;
              }
          }
          case GL_RGB32I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32B32A32_SINT:
                      return RGB32I_to_R32G32B32A32_SINT;
                  default:
                      break;
              }
          }
          case GL_RGB32UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32B32A32_UINT:
                      return RGB32UI_to_R32G32B32A32_UINT;
                  default:
                      break;
              }
          }
          case GL_RGB565:
          {
              switch (angleFormat)
              {
                  case Format::ID::B5G6R5_UNORM:
                      return RGB565_to_B5G6R5_UNORM;
                  case Format::ID::R8G8B8A8_UNORM:
                      return RGB565_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_RGB5_A1:
          {
              switch (angleFormat)
              {
                  case Format::ID::B5G5R5A1_UNORM:
                      return RGB5_A1_to_B5G5R5A1_UNORM;
                  case Format::ID::R8G8B8A8_UNORM:
                      return RGB5_A1_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_RGB8:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM:
                      return RGB8_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_RGB8I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_SINT:
                      return RGB8I_to_R8G8B8A8_SINT;
                  default:
                      break;
              }
          }
          case GL_RGB8UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UINT:
                      return RGB8UI_to_R8G8B8A8_UINT;
                  default:
                      break;
              }
          }
          case GL_RGB8_SNORM:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_SNORM:
                      return RGB8_SNORM_to_R8G8B8A8_SNORM;
                  default:
                      break;
              }
          }
          case GL_RGB9_E5:
          {
              switch (angleFormat)
              {
                  case Format::ID::R9G9B9E5_SHAREDEXP:
                      return RGB9_E5_to_R9G9B9E5_SHAREDEXP;
                  default:
                      break;
              }
          }
          case GL_RGBA:
              return RGBA_to_default;
          case GL_RGBA16F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_FLOAT:
                      return RGBA16F_to_R16G16B16A16_FLOAT;
                  default:
                      break;
              }
          }
          case GL_RGBA16I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_SINT:
                      return RGBA16I_to_R16G16B16A16_SINT;
                  default:
                      break;
              }
          }
          case GL_RGBA16UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_UINT:
                      return RGBA16UI_to_R16G16B16A16_UINT;
                  default:
                      break;
              }
          }
          case GL_RGBA16_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_UNORM:
                      return RGBA16_EXT_to_R16G16B16A16_UNORM;
                  default:
                      break;
              }
          }
          case GL_RGBA16_SNORM_EXT:
          {
              switch (angleFormat)
              {
                  case Format::ID::R16G16B16A16_SNORM:
                      return RGBA16_SNORM_EXT_to_R16G16B16A16_SNORM;
                  default:
                      break;
              }
          }
          case GL_RGBA32F:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32B32A32_FLOAT:
                      return RGBA32F_to_R32G32B32A32_FLOAT;
                  default:
                      break;
              }
          }
          case GL_RGBA32I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32B32A32_SINT:
                      return RGBA32I_to_R32G32B32A32_SINT;
                  default:
                      break;
              }
          }
          case GL_RGBA32UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R32G32B32A32_UINT:
                      return RGBA32UI_to_R32G32B32A32_UINT;
                  default:
                      break;
              }
          }
          case GL_RGBA4:
          {
              switch (angleFormat)
              {
                  case Format::ID::B4G4R4A4_UNORM:
                      return RGBA4_to_B4G4R4A4_UNORM;
                  case Format::ID::R8G8B8A8_UNORM:
                      return RGBA4_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_RGBA8:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM:
                      return RGBA8_to_R8G8B8A8_UNORM;
                  default:
                      break;
              }
          }
          case GL_RGBA8I:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_SINT:
                      return RGBA8I_to_R8G8B8A8_SINT;
                  default:
                      break;
              }
          }
          case GL_RGBA8UI:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UINT:
                      return RGBA8UI_to_R8G8B8A8_UINT;
                  default:
                      break;
              }
          }
          case GL_RGBA8_SNORM:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_SNORM:
                      return RGBA8_SNORM_to_R8G8B8A8_SNORM;
                  default:
                      break;
              }
          }
          case GL_SRGB8:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM_SRGB:
                      return SRGB8_to_R8G8B8A8_UNORM_SRGB;
                  default:
                      break;
              }
          }
          case GL_SRGB8_ALPHA8:
          {
              switch (angleFormat)
              {
                  case Format::ID::R8G8B8A8_UNORM_SRGB:
                      return SRGB8_ALPHA8_to_R8G8B8A8_UNORM_SRGB;
                  default:
                      break;
              }
          }
          case GL_STENCIL_INDEX8:
              return STENCIL_INDEX8_to_default;
  
          default:
          {
              static LoadFunctionMap emptyLoadFunctionsMap;
              return emptyLoadFunctionsMap;
          }
      }
      // clang-format on
  
  }  // GetLoadFunctionsMap
  
  }  // namespace angle
  

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