// The format of this file:
//   C++ style single-line comments are supported.
//   Leading whitespace is only for formatting and doesn't have semantic meaning.
//
//   Grouping:
//   Groups of functions are denoted by "GROUP BEGIN" and "GROUP END". Groups can be nested.
//   Groups can have metadata related to the group itself. This is given at the end of the GROUP
//   BEGIN line in JSON object format.
//   Example:
//     GROUP BEGIN <group name> {"shader_type": "FRAGMENT"}
//     GROUP END <group name>
//
//   Defaults:
//   Default metadata for functions can be set with "DEFAULT METADATA" followed by metadata in JSON
//   object format. The metadata is applied to all following functions regardless of grouping until
//   another "DEFAULT METADATA" line is encountered, or until the end of a top-level group.
//   Example:
//     DEFAULT METADATA {"opSuffix": "ComponentWise"}
//
//   Supported function metadata properties are:
//     "essl_level"
//         string, one of COMMON_BUILTINS, ESSL1_BUILTINS, ESSL3_BUILTINS, ESSL3_1_BUILTINS,
//         ESSL3_2_BUILTINS, ESSL_INTERNAL_BACKEND_BUILTINS.
//     "opSuffix"
//         (optional) string, suffix to add to EOp code.  The op is derived from the function name,
//         and this suffix is applied to disambiguate between functions of the same name but in
//         different groups.
//     "suffix"
//         string, suffix that is used to disambiguate C++ variable names created based on the
//         function name from C++ keywords, or disambiguate two functions with the same name.
//     "essl_extension"
//         string, ESSL extension where the function is defined.
//     "essl_extension_becomes_core_in"
//         string, ESSL level where functions from this extension have become core.
//     "hasSideEffects"
//         boolean, can be used to mark a function as having side effects. Functions with an out or
//         inout parameter are automatically treated as having side effects.
//
//   Function declarations:
//   Lines that declare functions are in a similar format as in the GLSL spec:
//     <return type> <function name>(<param type>, ...);
//   Parameter types can have "out" or "inout" qualifiers.

GROUP BEGIN Math {"queryFunction": true}
  GROUP BEGIN Trigonometric
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType radians(genType);
      genType degrees(genType);
      genType sin(genType);
      genType cos(genType);
      genType tan(genType);
      genType asin(genType);
      genType acos(genType);
      genType atan(genType, genType);
      genType atan(genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genType sinh(genType);
      genType cosh(genType);
      genType tanh(genType);
      genType asinh(genType);
      genType acosh(genType);
      genType atanh(genType);
  GROUP END Trigonometric

  GROUP BEGIN Exponential
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType pow(genType, genType);
      genType exp(genType);
      genType log(genType);
      genType exp2(genType);
      genType log2(genType);
      genType sqrt(genType);
      genType inversesqrt(genType);
  GROUP END Exponential

  GROUP BEGIN Common
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType abs(genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genIType abs(genIType);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType sign(genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genIType sign(genIType);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType floor(genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genType trunc(genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genType round(genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genType roundEven(genType);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType ceil(genType);
      genType fract(genType);
      genType mod(genType, float);
      genType mod(genType, genType);
      genType min(genType, float);
      genType min(genType, genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genIType min(genIType, genIType);
      genIType min(genIType, int);
      genUType min(genUType, genUType);
      genUType min(genUType, uint);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType max(genType, float);
      genType max(genType, genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genIType max(genIType, genIType);
      genIType max(genIType, int);
      genUType max(genUType, genUType);
      genUType max(genUType, uint);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType clamp(genType, float, float);
      genType clamp(genType, genType, genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genIType clamp(genIType, int, int);
      genIType clamp(genIType, genIType, genIType);
      genUType clamp(genUType, uint, uint);
      genUType clamp(genUType, genUType, genUType);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType mix(genType, genType, float);
      genType mix(genType, genType, genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genType mix(genType, genType, genBType);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
      genIType mix(genIType, genIType, genBType);
      genUType mix(genUType, genUType, genBType);
      genBType mix(genBType, genBType, genBType);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      genType step(genType, genType);
      genType step(float, genType);
      genType smoothstep(genType, genType, genType);
      genType smoothstep(float, float, genType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      genType modf(genType, out genType);
      genBType isnan(genType);
      genBType isinf(genType);
      genIType floatBitsToInt(genType);
      genUType floatBitsToUint(genType);
      genType intBitsToFloat(genIType);
      genType uintBitsToFloat(genUType);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      genType fma(genType, genType, genType);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_gpu_shader5, OES_gpu_shader5", "suffix": "Ext"}
      genType fma(genType, genType, genType);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
      genType frexp(genType, out genIType);
      genType ldexp(genType, genIType);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      uint packSnorm2x16(vec2);
      uint packHalf2x16(vec2);
      vec2 unpackSnorm2x16(uint);
      vec2 unpackHalf2x16(uint);
      uint packUnorm2x16(vec2);
      vec2 unpackUnorm2x16(uint);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
      uint packUnorm4x8(vec4);
      uint packSnorm4x8(vec4);
      vec4 unpackUnorm4x8(uint);
      vec4 unpackSnorm4x8(uint);
  GROUP END Common

  GROUP BEGIN Geometric
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      float length(genType);
      float distance(genType, genType);
      float dot(genType, genType);
      vec3 cross(vec3, vec3);
      genType normalize(genType);
      genType faceforward(genType, genType, genType);
      genType reflect(genType, genType);
      genType refract(genType, genType, float);
  GROUP END Geometric

  GROUP BEGIN Matrix
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      mat2 matrixCompMult(mat2, mat2);
      mat3 matrixCompMult(mat3, mat3);
      mat4 matrixCompMult(mat4, mat4);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      mat2x3 matrixCompMult(mat2x3, mat2x3);
      mat3x2 matrixCompMult(mat3x2, mat3x2);
      mat2x4 matrixCompMult(mat2x4, mat2x4);
      mat4x2 matrixCompMult(mat4x2, mat4x2);
      mat3x4 matrixCompMult(mat3x4, mat3x4);
      mat4x3 matrixCompMult(mat4x3, mat4x3);
      mat2 outerProduct(vec2, vec2);
      mat3 outerProduct(vec3, vec3);
      mat4 outerProduct(vec4, vec4);
      mat2x3 outerProduct(vec3, vec2);
      mat3x2 outerProduct(vec2, vec3);
      mat2x4 outerProduct(vec4, vec2);
      mat4x2 outerProduct(vec2, vec4);
      mat3x4 outerProduct(vec4, vec3);
      mat4x3 outerProduct(vec3, vec4);
      mat2 transpose(mat2);
      mat3 transpose(mat3);
      mat4 transpose(mat4);
      mat2x3 transpose(mat3x2);
      mat3x2 transpose(mat2x3);
      mat2x4 transpose(mat4x2);
      mat4x2 transpose(mat2x4);
      mat3x4 transpose(mat4x3);
      mat4x3 transpose(mat3x4);
      float determinant(mat2);
      float determinant(mat3);
      float determinant(mat4);
      mat2 inverse(mat2);
      mat3 inverse(mat3);
      mat4 inverse(mat4);
  GROUP END Matrix

  GROUP BEGIN Vector
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS", "opSuffix": "ComponentWise"}
      bvec lessThan(vec, vec);
      bvec lessThan(ivec, ivec);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "opSuffix": "ComponentWise"}
      bvec lessThan(uvec, uvec);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS", "opSuffix": "ComponentWise"}
      bvec lessThanEqual(vec, vec);
      bvec lessThanEqual(ivec, ivec);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "opSuffix": "ComponentWise"}
      bvec lessThanEqual(uvec, uvec);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS", "opSuffix": "ComponentWise"}
      bvec greaterThan(vec, vec);
      bvec greaterThan(ivec, ivec);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "opSuffix": "ComponentWise"}
      bvec greaterThan(uvec, uvec);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS", "opSuffix": "ComponentWise"}
      bvec greaterThanEqual(vec, vec);
      bvec greaterThanEqual(ivec, ivec);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "opSuffix": "ComponentWise"}
      bvec greaterThanEqual(uvec, uvec);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS", "opSuffix": "ComponentWise"}
      bvec equal(vec, vec);
      bvec equal(ivec, ivec);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "opSuffix": "ComponentWise"}
      bvec equal(uvec, uvec);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS", "opSuffix": "ComponentWise"}
      bvec equal(bvec, bvec);
      bvec notEqual(vec, vec);
      bvec notEqual(ivec, ivec);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "opSuffix": "ComponentWise"}
      bvec notEqual(uvec, uvec);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS", "opSuffix": "ComponentWise"}
      bvec notEqual(bvec, bvec);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS"}
      bool any(bvec);
      bool all(bvec);
    DEFAULT METADATA {"essl_level": "COMMON_BUILTINS", "opSuffix": "ComponentWise", "suffix": "Func"}
      bvec not(bvec);
  GROUP END Vector

  GROUP BEGIN Integer
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
      genIType bitfieldExtract(genIType, int, int);
      genUType bitfieldExtract(genUType, int, int);
      genIType bitfieldInsert(genIType, genIType, int, int);
      genUType bitfieldInsert(genUType, genUType, int, int);
      genIType bitfieldReverse(genIType);
      genUType bitfieldReverse(genUType);
      genIType bitCount(genIType);
      genIType bitCount(genUType);
      genIType findLSB(genIType);
      genIType findLSB(genUType);
      genIType findMSB(genIType);
      genIType findMSB(genUType);
      genUType uaddCarry(genUType, genUType, out genUType);
      genUType usubBorrow(genUType, genUType, out genUType);
      void umulExtended(genUType, genUType, out genUType, out genUType);
      void imulExtended(genIType, genIType, out genIType, out genIType);
  GROUP END Integer
GROUP END Math

GROUP BEGIN Texture {"queryFunction": true}
  GROUP BEGIN FirstVersions
    DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS"}
      vec4 texture2D(sampler2D, vec2);
      vec4 texture2DProj(sampler2D, vec3);
      vec4 texture2DProj(sampler2D, vec4);
      vec4 textureCube(samplerCube, vec3);
    DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "OES_texture_3D"}
      vec4 texture3D(sampler3D, vec3);
      vec4 texture3DProj(sampler3D, vec4);
    DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "EXT_shadow_samplers"}
      float shadow2DEXT(sampler2DShadow, vec3);
      float shadow2DProjEXT(sampler2DShadow, vec4);
    DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "OES_EGL_image_external, NV_EGL_stream_consumer_external"}
      vec4 texture2D(samplerExternalOES, vec2);
      vec4 texture2DProj(samplerExternalOES, vec3);
      vec4 texture2DProj(samplerExternalOES, vec4);
    DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "ARB_texture_rectangle"}
      vec4 texture2DRect(sampler2DRect, vec2);
      vec4 texture2DRectProj(sampler2DRect, vec3);
      vec4 texture2DRectProj(sampler2DRect, vec4);
    // The *Grad* variants are new to both vertex and fragment shaders; the fragment
    // shader specific pieces are added separately below.
    DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "EXT_shader_texture_lod"}
      vec4 texture2DGradEXT(sampler2D, vec2, vec2, vec2);
      vec4 texture2DProjGradEXT(sampler2D, vec3, vec2, vec2);
      vec4 texture2DProjGradEXT(sampler2D, vec4, vec2, vec2);
      vec4 textureCubeGradEXT(samplerCube, vec3, vec3, vec3);

    // Variants with bias are limited to fragment shaders
    GROUP BEGIN Bias {"shader_type": "FRAGMENT", "opSuffix": "Bias"}
      DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS"}
        vec4 texture2D(sampler2D, vec2, float);
        vec4 texture2DProj(sampler2D, vec3, float);
        vec4 texture2DProj(sampler2D, vec4, float);
        vec4 textureCube(samplerCube, vec3, float);
      DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "OES_texture_3D"}
        vec4 texture3D(sampler3D, vec3, float);
        vec4 texture3DProj(sampler3D, vec4, float);
    GROUP END Bias

    GROUP BEGIN Lod
      // The GLES spec mentioning that lod variants are limited to vertex shaders, and the
      // OES_texture_3D spec doesn't mention otherwise.  However, these functions are used in tests
      // and seem to be expected to be available in fragment shaders too.
      DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "OES_texture_3D"}
        vec4 texture3DLod(sampler3D, vec3, float);
        vec4 texture3DProjLod(sampler3D, vec4, float);
    GROUP END Lod

    // Variants with lod are limited to vertex shaders in GLES
    GROUP BEGIN LodVS {"shader_type": "VERTEX", "opSuffix": "VS"}
      DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS"}
        vec4 texture2DLod(sampler2D, vec2, float);
        vec4 texture2DProjLod(sampler2D, vec3, float);
        vec4 texture2DProjLod(sampler2D, vec4, float);
        vec4 textureCubeLod(samplerCube, vec3, float);
    GROUP END LodVS

    // EXT_shader_texture_lod brings some lod variants to fragment shaders
    GROUP BEGIN LodFS {"shader_type": "FRAGMENT", "opSuffix": "FS"}
      DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "EXT_shader_texture_lod"}
        vec4 texture2DLodEXT(sampler2D, vec2, float);
        vec4 texture2DProjLodEXT(sampler2D, vec3, float);
        vec4 texture2DProjLodEXT(sampler2D, vec4, float);
        vec4 textureCubeLodEXT(samplerCube, vec3, float);
    GROUP END LodFS

  GROUP END FirstVersions

  GROUP BEGIN NoBias
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 texture(gsampler2D, vec2);
      gvec4 texture(gsampler3D, vec3);
      gvec4 texture(gsamplerCube, vec3);
      gvec4 texture(gsampler2DArray, vec3);
      float texture(sampler2DShadow, vec3);
      float texture(samplerCubeShadow, vec4);
      float texture(sampler2DArrayShadow, vec4);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      gvec4 texture(gsamplerCubeArray, vec4);
      float texture(samplerCubeArrayShadow, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
      gvec4 texture(gsamplerCubeArray, vec4);
      float texture(samplerCubeArrayShadow, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "OES_EGL_image_external_essl3"}
      vec4 texture(samplerExternalOES, vec2);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_YUV_target"}
      vec4 texture(samplerExternal2DY2YEXT, vec2);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "ARB_texture_rectangle"}
      // We don't have a rectangle texture essl_extension for OpenGL ES however based on the behavior of
      // rectangle texture in desktop OpenGL, they should be sampled with a "texture" overload in
      // GLSL version that have such an overload. This is the case for ESSL3 and above.
      vec4 texture(sampler2DRect, vec2);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureProj(gsampler2D, vec3);
      gvec4 textureProj(gsampler2D, vec4);
      gvec4 textureProj(gsampler3D, vec4);
      float textureProj(sampler2DShadow, vec4);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "OES_EGL_image_external_essl3"}
      vec4 textureProj(samplerExternalOES, vec3);
      vec4 textureProj(samplerExternalOES, vec4);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_YUV_target"}
      vec4 textureProj(samplerExternal2DY2YEXT, vec3);
      vec4 textureProj(samplerExternal2DY2YEXT, vec4);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "ARB_texture_rectangle"}
      vec4 textureProj(sampler2DRect, vec3);
      vec4 textureProj(sampler2DRect, vec4);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureLod(gsampler2D, vec2, float);
      gvec4 textureLod(gsampler3D, vec3, float);
      gvec4 textureLod(gsamplerCube, vec3, float);
      gvec4 textureLod(gsampler2DArray, vec3, float);
      float textureLod(sampler2DShadow, vec3, float);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_texture_shadow_lod"}
      float textureLod(samplerCubeShadow, vec4, float);
      float textureLod(sampler2DArrayShadow, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_texture_shadow_lod"}
      float textureLod(samplerCubeArrayShadow, vec4, float, float);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      gvec4 textureLod(gsamplerCubeArray, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
      gvec4 textureLod(gsamplerCubeArray, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      ivec2 textureSize(gsampler2D, int);
      ivec3 textureSize(gsampler3D, int);
      ivec2 textureSize(gsamplerCube, int);
      ivec3 textureSize(gsampler2DArray, int);
      ivec2 textureSize(sampler2DShadow, int);
      ivec2 textureSize(samplerCubeShadow, int);
      ivec3 textureSize(sampler2DArrayShadow, int);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      ivec3 textureSize(gsamplerCubeArray, int);
      ivec3 textureSize(samplerCubeArrayShadow, int);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
      ivec3 textureSize(gsamplerCubeArray, int);
      ivec3 textureSize(samplerCubeArrayShadow, int);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      int textureSize(gsamplerBuffer);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_buffer, EXT_texture_buffer", "suffix": "Ext"}
      int textureSize(gsamplerBuffer);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
      ivec2 textureSize(gsampler2DMS);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "ANGLE_texture_multisample", "suffix": "Ext"}
      ivec2 textureSize(gsampler2DMS);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      ivec3 textureSize(gsampler2DMSArray);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "OES_texture_storage_multisample_2d_array", "suffix": "Ext"}
      ivec3 textureSize(gsampler2DMSArray);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "OES_EGL_image_external_essl3"}
      ivec2 textureSize(samplerExternalOES, int);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_YUV_target"}
      ivec2 textureSize(samplerExternal2DY2YEXT, int);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureProjLod(gsampler2D, vec3, float);
      gvec4 textureProjLod(gsampler2D, vec4, float);
      gvec4 textureProjLod(gsampler3D, vec4, float);
      float textureProjLod(sampler2DShadow, vec4, float);
      gvec4 texelFetch(gsampler2D, ivec2, int);
      gvec4 texelFetch(gsampler3D, ivec3, int);
      gvec4 texelFetch(gsampler2DArray, ivec3, int);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      gvec4 texelFetch(gsamplerBuffer, int);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_buffer, EXT_texture_buffer", "suffix": "Ext"}
      gvec4 texelFetch(gsamplerBuffer, int);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
      gvec4 texelFetch(gsampler2DMS, ivec2, int);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "ANGLE_texture_multisample", "suffix": "Ext"}
      gvec4 texelFetch(gsampler2DMS, ivec2, int);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      gvec4 texelFetch(gsampler2DMSArray, ivec3, int);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "OES_texture_storage_multisample_2d_array", "suffix": "Ext"}
      gvec4 texelFetch(gsampler2DMSArray, ivec3, int);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "OES_EGL_image_external_essl3"}
      vec4 texelFetch(samplerExternalOES, ivec2, int);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_YUV_target"}
      vec4 texelFetch(samplerExternal2DY2YEXT, ivec2, int);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureGrad(gsampler2D, vec2, vec2, vec2);
      gvec4 textureGrad(gsampler3D, vec3, vec3, vec3);
      gvec4 textureGrad(gsamplerCube, vec3, vec3, vec3);
      float textureGrad(sampler2DShadow, vec3, vec2, vec2);
      float textureGrad(samplerCubeShadow, vec4, vec3, vec3);
      gvec4 textureGrad(gsampler2DArray, vec3, vec2, vec2);
      float textureGrad(sampler2DArrayShadow, vec4, vec2, vec2);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      gvec4 textureGrad(gsamplerCubeArray, vec4, vec3, vec3);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
      gvec4 textureGrad(gsamplerCubeArray, vec4, vec3, vec3);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureProjGrad(gsampler2D, vec3, vec2, vec2);
      gvec4 textureProjGrad(gsampler2D, vec4, vec2, vec2);
      gvec4 textureProjGrad(gsampler3D, vec4, vec3, vec3);
      float textureProjGrad(sampler2DShadow, vec4, vec2, vec2);
  GROUP END NoBias

  GROUP BEGIN Bias {"shader_type": "FRAGMENT", "opSuffix": "Bias"}
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 texture(gsampler2D, vec2, float);
      gvec4 texture(gsampler3D, vec3, float);
      gvec4 texture(gsamplerCube, vec3, float);
      gvec4 texture(gsampler2DArray, vec3, float);
      gvec4 textureProj(gsampler2D, vec3, float);
      gvec4 textureProj(gsampler2D, vec4, float);
      gvec4 textureProj(gsampler3D, vec4, float);
      float texture(sampler2DShadow, vec3, float);
      float texture(samplerCubeShadow, vec4, float);
      float textureProj(sampler2DShadow, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_texture_shadow_lod"}
      float texture(sampler2DArrayShadow, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
      gvec4 texture(gsamplerCubeArray, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
      gvec4 texture(gsamplerCubeArray, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_texture_shadow_lod"}
      float texture(samplerCubeArrayShadow, vec4, float, float);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "OES_EGL_image_external_essl3"}
      vec4 texture(samplerExternalOES, vec2, float);
      vec4 textureProj(samplerExternalOES, vec3, float);
      vec4 textureProj(samplerExternalOES, vec4, float);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_YUV_target"}
      vec4 texture(samplerExternal2DY2YEXT, vec2, float);
      vec4 textureProj(samplerExternal2DY2YEXT, vec3, float);
      vec4 textureProj(samplerExternal2DY2YEXT, vec4, float);
  GROUP END Bias

  GROUP BEGIN OffsetNoBias {"queryFunction": true}
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureOffset(gsampler2D, vec2, ivec2);
      gvec4 textureOffset(gsampler3D, vec3, ivec3);
      float textureOffset(sampler2DShadow, vec3, ivec2);
      gvec4 textureOffset(gsampler2DArray, vec3, ivec2);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_texture_shadow_lod"}
      float textureOffset(sampler2DArrayShadow, vec4, ivec2);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureProjOffset(gsampler2D, vec3, ivec2);
      gvec4 textureProjOffset(gsampler2D, vec4, ivec2);
      gvec4 textureProjOffset(gsampler3D, vec4, ivec3);
      float textureProjOffset(sampler2DShadow, vec4, ivec2);
      gvec4 textureLodOffset(gsampler2D, vec2, float, ivec2);
      gvec4 textureLodOffset(gsampler3D, vec3, float, ivec3);
      float textureLodOffset(sampler2DShadow, vec3, float, ivec2);
      gvec4 textureLodOffset(gsampler2DArray, vec3, float, ivec2);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_texture_shadow_lod"}
      float textureLodOffset(sampler2DArrayShadow, vec4, float, ivec2);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureProjLodOffset(gsampler2D, vec3, float, ivec2);
      gvec4 textureProjLodOffset(gsampler2D, vec4, float, ivec2);
      gvec4 textureProjLodOffset(gsampler3D, vec4, float, ivec3);
      float textureProjLodOffset(sampler2DShadow, vec4, float, ivec2);
      gvec4 texelFetchOffset(gsampler2D, ivec2, int, ivec2);
      gvec4 texelFetchOffset(gsampler3D, ivec3, int, ivec3);
      gvec4 texelFetchOffset(gsampler2DArray, ivec3, int, ivec2);
      gvec4 textureGradOffset(gsampler2D, vec2, vec2, vec2, ivec2);
      gvec4 textureGradOffset(gsampler3D, vec3, vec3, vec3, ivec3);
      float textureGradOffset(sampler2DShadow, vec3, vec2, vec2, ivec2);
      gvec4 textureGradOffset(gsampler2DArray, vec3, vec2, vec2, ivec2);
      float textureGradOffset(sampler2DArrayShadow, vec4, vec2, vec2, ivec2);
      gvec4 textureProjGradOffset(gsampler2D, vec3, vec2, vec2, ivec2);
      gvec4 textureProjGradOffset(gsampler2D, vec4, vec2, vec2, ivec2);
      gvec4 textureProjGradOffset(gsampler3D, vec4, vec3, vec3, ivec3);
      float textureProjGradOffset(sampler2DShadow, vec4, vec2, vec2, ivec2);
  GROUP END OffsetNoBias

  GROUP BEGIN OffsetBias {"queryFunction": true, "shader_type": "FRAGMENT", "opSuffix": "Bias"}
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureOffset(gsampler2D, vec2, ivec2, float);
      gvec4 textureOffset(gsampler3D, vec3, ivec3, float);
      float textureOffset(sampler2DShadow, vec3, ivec2, float);
      gvec4 textureOffset(gsampler2DArray, vec3, ivec2, float);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_texture_shadow_lod"}
      float textureOffset(sampler2DArrayShadow, vec4, ivec2, float);
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
      gvec4 textureProjOffset(gsampler2D, vec3, ivec2, float);
      gvec4 textureProjOffset(gsampler2D, vec4, ivec2, float);
      gvec4 textureProjOffset(gsampler3D, vec4, ivec3, float);
      float textureProjOffset(sampler2DShadow, vec4, ivec2, float);
  GROUP END OffsetBias

  GROUP BEGIN Gather {"queryFunction": true}
    GROUP BEGIN NoComp {"queryFunction": true}
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
        gvec4 textureGather(gsampler2D, vec2);
        gvec4 textureGather(gsampler2DArray, vec3);
        gvec4 textureGather(gsamplerCube, vec3);
      DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
        gvec4 textureGather(gsamplerCubeArray, vec4);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
        gvec4 textureGather(gsamplerCubeArray, vec4);
    GROUP END NoComp
    GROUP BEGIN Comp {"queryFunction": true, "opSuffix": "Comp"}
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
        gvec4 textureGather(gsampler2D, vec2, int);
        gvec4 textureGather(gsampler2DArray, vec3, int);
        gvec4 textureGather(gsamplerCube, vec3, int);
      DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
        gvec4 textureGather(gsamplerCubeArray, vec4, int);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
        gvec4 textureGather(gsamplerCubeArray, vec4, int);
    GROUP END Comp
    GROUP BEGIN Ref {"queryFunction": true, "opSuffix": "Ref"}
      DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
        vec4 textureGather(samplerCubeArrayShadow, vec4, float);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
        vec4 textureGather(samplerCubeArrayShadow, vec4, float);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
        vec4 textureGather(sampler2DShadow, vec2, float);
        vec4 textureGather(sampler2DArrayShadow, vec3, float);
        vec4 textureGather(samplerCubeShadow, vec3, float);
    GROUP END Ref

    GROUP BEGIN Offset {"queryFunction": true}
      GROUP BEGIN NoComp {"queryFunction": true}
        DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
          gvec4 textureGatherOffset(gsampler2D, vec2, ivec2);
          gvec4 textureGatherOffset(gsampler2DArray, vec3, ivec2);
      GROUP END NoComp
      GROUP BEGIN Comp {"queryFunction": true, "opSuffix": "Comp"}
        DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
          gvec4 textureGatherOffset(gsampler2D, vec2, ivec2, int);
          gvec4 textureGatherOffset(gsampler2DArray, vec3, ivec2, int);
      GROUP END Comp
      GROUP BEGIN Ref {"queryFunction": true, "opSuffix": "Ref"}
        DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
          vec4 textureGatherOffset(sampler2DShadow, vec2, float, ivec2);
          vec4 textureGatherOffset(sampler2DArrayShadow, vec3, float, ivec2);
      GROUP END Ref
    GROUP END Offset
    GROUP BEGIN Offsets {"queryFunction": true}
      GROUP BEGIN NoComp {"queryFunction": true}
        DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
          gvec4 textureGatherOffsets(gsampler2D, vec2, ivec2[4]);
          gvec4 textureGatherOffsets(gsampler2DArray, vec3, ivec2[4]);
        DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_gpu_shader5, OES_gpu_shader5", "suffix": "Ext"}
          gvec4 textureGatherOffsets(gsampler2D, vec2, ivec2[4]);
          gvec4 textureGatherOffsets(gsampler2DArray, vec3, ivec2[4]);
      GROUP END NoComp
      GROUP BEGIN Comp {"queryFunction": true, "opSuffix": "Comp"}
        DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
          gvec4 textureGatherOffsets(gsampler2D, vec2, ivec2[4], int);
          gvec4 textureGatherOffsets(gsampler2DArray, vec3, ivec2[4], int);
        DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_gpu_shader5, OES_gpu_shader5", "suffix": "Ext"}
          gvec4 textureGatherOffsets(gsampler2D, vec2, ivec2[4], int);
          gvec4 textureGatherOffsets(gsampler2DArray, vec3, ivec2[4], int);
      GROUP END Comp
      GROUP BEGIN Ref {"queryFunction": true, "opSuffix": "Ref"}
        DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
          vec4 textureGatherOffsets(sampler2DShadow, vec2, float, ivec2[4]);
          vec4 textureGatherOffsets(sampler2DArrayShadow, vec3, float, ivec2[4]);
        DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_gpu_shader5, OES_gpu_shader5", "suffix": "Ext"}
          vec4 textureGatherOffsets(sampler2DShadow, vec2, float, ivec2[4]);
          vec4 textureGatherOffsets(sampler2DArrayShadow, vec3, float, ivec2[4]);
      GROUP END Ref
    GROUP END Offsets
  GROUP END Gather

  GROUP BEGIN QueryLod {"shader_type": "FRAGMENT"}
    DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_texture_query_lod"}
      vec2 textureQueryLOD(gsampler2D, vec2);
      vec2 textureQueryLOD(gsampler3D, vec3);
      vec2 textureQueryLOD(gsamplerCube, vec3);
      vec2 textureQueryLOD(gsampler2DArray, vec2);
      vec2 textureQueryLOD(sampler2DShadow, vec2);
      vec2 textureQueryLOD(samplerCubeShadow, vec3);
      vec2 textureQueryLOD(sampler2DArrayShadow, vec2);
    DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_texture_query_lod"}
      vec2 textureQueryLOD(gsamplerCubeArray, vec3);
      vec2 textureQueryLOD(samplerCubeArrayShadow, vec3);
  GROUP END QueryLod
GROUP END Texture

GROUP BEGIN EXT_YUV_target
  DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "EXT_YUV_target"}
    vec3 rgb_2_yuv(vec3, yuvCscStandardEXT);
    vec3 yuv_2_rgb(vec3, yuvCscStandardEXT);
GROUP END EXT_YUV_target

GROUP BEGIN DerivativesFS {"queryFunction": true, "shader_type": "FRAGMENT"}
  DEFAULT METADATA {"essl_level": "ESSL1_BUILTINS", "essl_extension": "OES_standard_derivatives", "suffix": "Ext"}
    genType dFdx(genType);
    genType dFdy(genType);
    genType fwidth(genType);
  DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS"}
    genType dFdx(genType);
    genType dFdy(genType);
    genType fwidth(genType);
GROUP END DerivativesFS

GROUP BEGIN InterpolationFS {"queryFunction": true, "shader_type": "FRAGMENT"}
  DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
    float interpolateAtCentroid(float);
    vec2 interpolateAtCentroid(vec2);
    vec3 interpolateAtCentroid(vec3);
    vec4 interpolateAtCentroid(vec4);
    float interpolateAtSample(float, int);
    vec2 interpolateAtSample(vec2, int);
    vec3 interpolateAtSample(vec3, int);
    vec4 interpolateAtSample(vec4, int);
    float interpolateAtOffset(float, vec2);
    vec2 interpolateAtOffset(vec2, vec2);
    vec3 interpolateAtOffset(vec3, vec2);
    vec4 interpolateAtOffset(vec4, vec2);
  DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "OES_shader_multisample_interpolation", "suffix": "Ext"}
    float interpolateAtCentroid(float);
    vec2 interpolateAtCentroid(vec2);
    vec3 interpolateAtCentroid(vec3);
    vec4 interpolateAtCentroid(vec4);
    float interpolateAtSample(float, int);
    vec2 interpolateAtSample(vec2, int);
    vec3 interpolateAtSample(vec3, int);
    vec4 interpolateAtSample(vec4, int);
    float interpolateAtOffset(float, vec2);
    vec2 interpolateAtOffset(vec2, vec2);
    vec3 interpolateAtOffset(vec3, vec2);
    vec4 interpolateAtOffset(vec4, vec2);
GROUP END InterpolationFS

GROUP BEGIN AtomicCounter {"queryFunction": true}
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "hasSideEffects": true}
    uint atomicCounter(atomic_uint);
    uint atomicCounterIncrement(atomic_uint);
    uint atomicCounterDecrement(atomic_uint);
GROUP END AtomicCounter

GROUP BEGIN AtomicMemory {"queryFunction": true}
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
    uint atomicAdd(inout uint, uint);
    int atomicAdd(inout int, int);
    uint atomicMin(inout uint, uint);
    int atomicMin(inout int, int);
    uint atomicMax(inout uint, uint);
    int atomicMax(inout int, int);
    uint atomicAnd(inout uint, uint);
    int atomicAnd(inout int, int);
    uint atomicOr(inout uint, uint);
    int atomicOr(inout int, int);
    uint atomicXor(inout uint, uint);
    int atomicXor(inout int, int);
    uint atomicExchange(inout uint, uint);
    int atomicExchange(inout int, int);
    uint atomicCompSwap(inout uint, uint, uint);
    int atomicCompSwap(inout int, int, int);
GROUP END AtomicMemory

GROUP BEGIN Image {"queryFunction": true}
    GROUP BEGIN Store {"queryFunction": true}
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "hasSideEffects": true}
        void imageStore(gimage2D, ivec2, gvec4);
        void imageStore(gimage3D, ivec3, gvec4);
        void imageStore(gimage2DArray, ivec3, gvec4);
        void imageStore(gimageCube, ivec3, gvec4);

      DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS", "hasSideEffects": true}
        void imageStore(gimageCubeArray, ivec3, gvec4);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "hasSideEffects": true, "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
        void imageStore(gimageCubeArray, ivec3, gvec4);

      DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS", "hasSideEffects": true}
        void imageStore(gimageBuffer, int, gvec4);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "hasSideEffects": true, "essl_extension": "OES_texture_buffer, EXT_texture_buffer", "suffix": "Ext"}
        void imageStore(gimageBuffer, int, gvec4);
    GROUP END Store
    GROUP BEGIN Load {"queryFunction": true}
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
        gvec4 imageLoad(gimage2D, ivec2);
        gvec4 imageLoad(gimage3D, ivec3);
        gvec4 imageLoad(gimage2DArray, ivec3);
        gvec4 imageLoad(gimageCube, ivec3);

      DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
        gvec4 imageLoad(gimageCubeArray, ivec3);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
        gvec4 imageLoad(gimageCubeArray, ivec3);

      DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
        gvec4 imageLoad(gimageBuffer, int);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_buffer, EXT_texture_buffer", "suffix": "Ext"}
        gvec4 imageLoad(gimageBuffer, int);
    GROUP END Load
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS"}
    ivec2 imageSize(gimage2D);
    ivec3 imageSize(gimage3D);
    ivec3 imageSize(gimage2DArray);
    ivec2 imageSize(gimageCube);

  DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
    ivec3 imageSize(gimageCubeArray);
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_cube_map_array, EXT_texture_cube_map_array", "suffix": "Ext"}
    ivec3 imageSize(gimageCubeArray);

  DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS"}
    int imageSize(gimageBuffer);
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "OES_texture_buffer, EXT_texture_buffer", "suffix": "Ext"}
    int imageSize(gimageBuffer);

  GROUP BEGIN Atomic {"queryFunction": true}
      DEFAULT METADATA {"essl_level": "ESSL3_2_BUILTINS", "hasSideEffects": true}
        uint imageAtomicAdd(IMAGE_PARAMS, uint);
        int imageAtomicAdd(IMAGE_PARAMS, int);
        uint imageAtomicMin(IMAGE_PARAMS, uint);
        int imageAtomicMin(IMAGE_PARAMS, int);
        uint imageAtomicMax(IMAGE_PARAMS, uint);
        int imageAtomicMax(IMAGE_PARAMS, int);
        uint imageAtomicAnd(IMAGE_PARAMS, uint);
        int imageAtomicAnd(IMAGE_PARAMS, int);
        uint imageAtomicOr(IMAGE_PARAMS, uint);
        int imageAtomicOr(IMAGE_PARAMS, int);
        uint imageAtomicXor(IMAGE_PARAMS, uint);
        int imageAtomicXor(IMAGE_PARAMS, int);
        uint imageAtomicExchange(IMAGE_PARAMS, uint);
        int imageAtomicExchange(IMAGE_PARAMS, int);
        float imageAtomicExchange(IMAGE_PARAMS, float);
        uint imageAtomicCompSwap(IMAGE_PARAMS, uint, uint);
        int imageAtomicCompSwap(IMAGE_PARAMS, int, int);
      DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "hasSideEffects": true, "essl_extension": "OES_shader_image_atomic", "suffix": "Ext"}
        uint imageAtomicAdd(readonly writeonly IMAGE_PARAMS, uint);
        int imageAtomicAdd(readonly writeonly IMAGE_PARAMS, int);
        uint imageAtomicMin(readonly writeonly IMAGE_PARAMS, uint);
        int imageAtomicMin(readonly writeonly IMAGE_PARAMS, int);
        uint imageAtomicMax(readonly writeonly IMAGE_PARAMS, uint);
        int imageAtomicMax(readonly writeonly IMAGE_PARAMS, int);
        uint imageAtomicAnd(readonly writeonly IMAGE_PARAMS, uint);
        int imageAtomicAnd(readonly writeonly IMAGE_PARAMS, int);
        uint imageAtomicOr(readonly writeonly IMAGE_PARAMS, uint);
        int imageAtomicOr(readonly writeonly IMAGE_PARAMS, int);
        uint imageAtomicXor(readonly writeonly IMAGE_PARAMS, uint);
        int imageAtomicXor(readonly writeonly IMAGE_PARAMS, int);
        uint imageAtomicExchange(readonly writeonly IMAGE_PARAMS, uint);
        int imageAtomicExchange(readonly writeonly IMAGE_PARAMS, int);
        float imageAtomicExchange(readonly writeonly IMAGE_PARAMS, float);
        uint imageAtomicCompSwap(readonly writeonly IMAGE_PARAMS, uint, uint);
        int imageAtomicCompSwap(readonly writeonly IMAGE_PARAMS, int, int);
  GROUP END Atomic
GROUP END Image

GROUP BEGIN PixelLocal {"queryFunction": true}
    GROUP BEGIN Load {"queryFunction": true}
      DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "ANGLE_shader_pixel_local_storage", "hasSideEffects": false}
        gvec4 pixelLocalLoadANGLE(gpixelLocalANGLE);
    GROUP END Load
    GROUP BEGIN Store {"queryFunction": true}
      DEFAULT METADATA {"essl_level": "ESSL3_BUILTINS", "essl_extension": "ANGLE_shader_pixel_local_storage", "hasSideEffects": true}
        void pixelLocalStoreANGLE(gpixelLocalANGLE, gvec4);
    GROUP END Store
GROUP END PixelLocal

// Desktop GLSL-only fragment synchronization functions. These are injected internally by the
// compiler to make pixel local storage coherent.
GROUP BEGIN FragmentSynchronization
  DEFAULT METADATA {"essl_level": "ESSL_INTERNAL_BACKEND_BUILTINS", "hasSideEffects": true}
    void beginInvocationInterlockNV();
    void endInvocationInterlockNV();
    void beginFragmentShaderOrderingINTEL();
    void beginInvocationInterlockARB();
    void endInvocationInterlockARB();
GROUP END FragmentSynchronization

GROUP BEGIN Barrier
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "hasSideEffects": true}
    void memoryBarrier();
    void memoryBarrierAtomicCounter();
    void memoryBarrierBuffer();
    void memoryBarrierImage();
GROUP END Barrier

GROUP BEGIN ESSL310CS {"shader_type": "COMPUTE"}
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "hasSideEffects": true}
    void barrier();
    void memoryBarrierShared();
    void groupMemoryBarrier();
GROUP END ESSL310CS

GROUP BEGIN ESSL310TCS {"shader_type": "TESS_CONTROL_EXT"}
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_tessellation_shader, OES_tessellation_shader", "essl_extension_becomes_core_in": "ESSL3_2_BUILTINS", "opSuffix": "TCS", "hasSideEffects": true, "suffix": "TCS"}
    void barrier();
GROUP END ESSL310TCS

GROUP BEGIN GS {"shader_type": "GEOMETRY"}
  DEFAULT METADATA {"essl_level": "ESSL3_1_BUILTINS", "essl_extension": "EXT_geometry_shader, OES_geometry_shader", "essl_extension_becomes_core_in": "ESSL3_2_BUILTINS", "hasSideEffects": true}
    void EmitVertex();
    void EndPrimitive();
GROUP END GS

GROUP BEGIN SubpassInput
  DEFAULT METADATA {"essl_level": "ESSL_INTERNAL_BACKEND_BUILTINS"}
    gvec4 subpassLoad(gsubpassInput);
GROUP END SubpassInput

// MSL fragment functions
GROUP BEGIN MetalFragmentSample {"shader_type": "FRAGMENT"}
  DEFAULT METADATA {"essl_level": "ESSL_INTERNAL_BACKEND_BUILTINS"}
    uint numSamples();
    vec2 samplePosition(uint);
    genType interpolateAtCenter(genType);
GROUP END MetalFragmentSample

// MSL common functions
GROUP BEGIN MetalCommon
  DEFAULT METADATA {"essl_level": "ESSL_INTERNAL_BACKEND_BUILTINS", "hasSideEffects": true}
    void loopForwardProgress();
  DEFAULT METADATA {"essl_level": "ESSL_INTERNAL_BACKEND_BUILTINS"}
    genType saturate(genType);
GROUP END MetalCommon
