// Copyright (C) 2015 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGet.xhtml","OpenGL ES 3.1")
cmd void glGetBooleani_v(GLenum target, GLuint index, GLboolean* data) {
  minRequiredVersion(3, 1)
  switch (target) {
    case GL_ACTIVE_TEXTURE, GL_ALIASED_LINE_WIDTH_RANGE, GL_ALIASED_POINT_SIZE_RANGE,
        GL_ALPHA_BITS, GL_ARRAY_BUFFER_BINDING, GL_BLEND, GL_BLEND_COLOR, GL_BLEND_DST_ALPHA,
        GL_BLEND_DST_RGB, GL_BLEND_EQUATION_ALPHA, GL_BLEND_EQUATION_RGB, GL_BLEND_SRC_ALPHA,
        GL_BLEND_SRC_RGB, GL_BLUE_BITS, GL_COLOR_CLEAR_VALUE, GL_COLOR_WRITEMASK,
        GL_COMPRESSED_TEXTURE_FORMATS, GL_COPY_READ_BUFFER_BINDING, GL_COPY_WRITE_BUFFER_BINDING,
        GL_CULL_FACE, GL_CULL_FACE_MODE, GL_CURRENT_PROGRAM, GL_DEPTH_BITS, GL_DEPTH_CLEAR_VALUE,
        GL_DEPTH_FUNC, GL_DEPTH_RANGE, GL_DEPTH_TEST, GL_DEPTH_WRITEMASK,
        GL_DISPATCH_INDIRECT_BUFFER_BINDING, GL_DITHER, GL_DRAW_BUFFER,
        GL_DRAW_FRAMEBUFFER_BINDING, GL_ELEMENT_ARRAY_BUFFER_BINDING,
        GL_FRAGMENT_SHADER_DERIVATIVE_HINT, GL_FRONT_FACE, GL_GENERATE_MIPMAP_HINT, GL_GREEN_BITS,
        GL_IMAGE_BINDING_LAYERED, GL_IMPLEMENTATION_COLOR_READ_FORMAT,
        GL_IMPLEMENTATION_COLOR_READ_TYPE, GL_LINE_WIDTH, GL_MAJOR_VERSION, GL_MAX_3D_TEXTURE_SIZE,
        GL_MAX_ARRAY_TEXTURE_LAYERS, GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS,
        GL_MAX_COLOR_ATTACHMENTS, GL_MAX_COLOR_TEXTURE_SAMPLES, GL_MAX_COMBINED_ATOMIC_COUNTERS,
        GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS, GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS, GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,
        GL_MAX_COMBINED_UNIFORM_BLOCKS, GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS,
        GL_MAX_COMPUTE_ATOMIC_COUNTERS, GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS,
        GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS, GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS,
        GL_MAX_COMPUTE_UNIFORM_BLOCKS, GL_MAX_COMPUTE_UNIFORM_COMPONENTS,
        GL_MAX_COMPUTE_WORK_GROUP_COUNT, GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS,
        GL_MAX_COMPUTE_WORK_GROUP_SIZE, GL_MAX_CUBE_MAP_TEXTURE_SIZE, GL_MAX_DRAW_BUFFERS,
        GL_MAX_ELEMENTS_INDICES, GL_MAX_ELEMENTS_VERTICES, GL_MAX_ELEMENT_INDEX,
        GL_MAX_FRAGMENT_ATOMIC_COUNTERS, GL_MAX_FRAGMENT_INPUT_COMPONENTS,
        GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS, GL_MAX_FRAGMENT_UNIFORM_BLOCKS,
        GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, GL_MAX_FRAGMENT_UNIFORM_VECTORS,
        GL_MAX_FRAMEBUFFER_HEIGHT, GL_MAX_FRAMEBUFFER_SAMPLES, GL_MAX_FRAMEBUFFER_WIDTH,
        GL_MAX_INTEGER_SAMPLES, GL_MAX_PROGRAM_TEXEL_OFFSET, GL_MAX_RENDERBUFFER_SIZE,
        GL_MAX_SAMPLES, GL_MAX_SAMPLE_MASK_WORDS, GL_MAX_SERVER_WAIT_TIMEOUT,
        GL_MAX_SHADER_STORAGE_BLOCK_SIZE, GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS,
        GL_MAX_TEXTURE_IMAGE_UNITS, GL_MAX_TEXTURE_LOD_BIAS, GL_MAX_TEXTURE_SIZE,
        GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
        GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
        GL_MAX_UNIFORM_BLOCK_SIZE, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_MAX_UNIFORM_LOCATIONS,
        GL_MAX_VARYING_COMPONENTS, GL_MAX_VARYING_VECTORS, GL_MAX_VERTEX_ATOMIC_COUNTERS,
        GL_MAX_VERTEX_ATTRIBS, GL_MAX_VERTEX_ATTRIB_BINDINGS, GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET,
        GL_MAX_VERTEX_OUTPUT_COMPONENTS, GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS,
        GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_MAX_VERTEX_UNIFORM_BLOCKS,
        GL_MAX_VERTEX_UNIFORM_COMPONENTS, GL_MAX_VERTEX_UNIFORM_VECTORS, GL_MAX_VIEWPORT_DIMS,
        GL_MINOR_VERSION, GL_MIN_PROGRAM_TEXEL_OFFSET, GL_NUM_COMPRESSED_TEXTURE_FORMATS,
        GL_NUM_EXTENSIONS, GL_NUM_PROGRAM_BINARY_FORMATS, GL_NUM_SHADER_BINARY_FORMATS,
        GL_PACK_ALIGNMENT, GL_PACK_ROW_LENGTH, GL_PACK_SKIP_PIXELS, GL_PACK_SKIP_ROWS,
        GL_PIXEL_PACK_BUFFER_BINDING, GL_PIXEL_UNPACK_BUFFER_BINDING, GL_POLYGON_OFFSET_FACTOR,
        GL_POLYGON_OFFSET_FILL, GL_POLYGON_OFFSET_UNITS, GL_PRIMITIVE_RESTART_FIXED_INDEX,
        GL_PROGRAM_BINARY_FORMATS, GL_PROGRAM_PIPELINE_BINDING, GL_RASTERIZER_DISCARD,
        GL_READ_BUFFER, GL_READ_FRAMEBUFFER_BINDING, GL_RED_BITS, GL_RENDERBUFFER_BINDING,
        GL_SAMPLER_BINDING, GL_SAMPLES, GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_BUFFERS,
        GL_SAMPLE_COVERAGE, GL_SAMPLE_COVERAGE_INVERT, GL_SAMPLE_COVERAGE_VALUE, GL_SCISSOR_BOX,
        GL_SCISSOR_TEST, GL_SHADER_BINARY_FORMATS, GL_SHADER_COMPILER,
        GL_SHADER_STORAGE_BUFFER_BINDING, GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT,
        GL_SHADER_STORAGE_BUFFER_SIZE, GL_SHADER_STORAGE_BUFFER_START, GL_STENCIL_BACK_FAIL,
        GL_STENCIL_BACK_FUNC, GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_STENCIL_BACK_PASS_DEPTH_PASS,
        GL_STENCIL_BACK_REF, GL_STENCIL_BACK_VALUE_MASK, GL_STENCIL_BACK_WRITEMASK,
        GL_STENCIL_BITS, GL_STENCIL_CLEAR_VALUE, GL_STENCIL_FAIL, GL_STENCIL_FUNC,
        GL_STENCIL_PASS_DEPTH_FAIL, GL_STENCIL_PASS_DEPTH_PASS, GL_STENCIL_REF, GL_STENCIL_TEST,
        GL_STENCIL_VALUE_MASK, GL_STENCIL_WRITEMASK, GL_SUBPIXEL_BITS, GL_TEXTURE_BINDING_2D,
        GL_TEXTURE_BINDING_2D_ARRAY, GL_TEXTURE_BINDING_2D_MULTISAMPLE, GL_TEXTURE_BINDING_3D,
        GL_TEXTURE_BINDING_CUBE_MAP, GL_TRANSFORM_FEEDBACK_ACTIVE, GL_TRANSFORM_FEEDBACK_BINDING,
        GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, GL_TRANSFORM_FEEDBACK_BUFFER_SIZE,
        GL_TRANSFORM_FEEDBACK_BUFFER_START, GL_TRANSFORM_FEEDBACK_PAUSED,
        GL_UNIFORM_BUFFER_BINDING, GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_UNIFORM_BUFFER_SIZE,
        GL_UNIFORM_BUFFER_START, GL_UNPACK_ALIGNMENT, GL_UNPACK_IMAGE_HEIGHT, GL_UNPACK_ROW_LENGTH,
        GL_UNPACK_SKIP_IMAGES, GL_UNPACK_SKIP_PIXELS, GL_UNPACK_SKIP_ROWS, GL_VERTEX_ARRAY_BINDING,
        GL_VERTEX_BINDING_DIVISOR, GL_VERTEX_BINDING_OFFSET, GL_VERTEX_BINDING_STRIDE, GL_VIEWPORT:
    {
      // version 3.1
    }
    default: {
      glErrorInvalidEnum(target)
    }
  }
  // TODO
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml","OpenGL ES 2.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGet.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGet.xhtml","OpenGL ES 3.1")
cmd void glGetBooleanv(GLenum param, GLboolean* values) {
  minRequiredVersion(2, 0)
  switch (param) {
    case GL_ACTIVE_TEXTURE, GL_ALIASED_LINE_WIDTH_RANGE, GL_ALIASED_POINT_SIZE_RANGE,
        GL_ALPHA_BITS, GL_ARRAY_BUFFER_BINDING, GL_BLEND, GL_BLEND_COLOR, GL_BLEND_DST_ALPHA,
        GL_BLEND_DST_RGB, GL_BLEND_EQUATION_ALPHA, GL_BLEND_EQUATION_RGB, GL_BLEND_SRC_ALPHA,
        GL_BLEND_SRC_RGB, GL_BLUE_BITS, GL_COLOR_CLEAR_VALUE, GL_COLOR_WRITEMASK,
        GL_COMPRESSED_TEXTURE_FORMATS, GL_CULL_FACE, GL_CULL_FACE_MODE, GL_CURRENT_PROGRAM,
        GL_DEPTH_BITS, GL_DEPTH_CLEAR_VALUE, GL_DEPTH_FUNC, GL_DEPTH_RANGE, GL_DEPTH_TEST,
        GL_DEPTH_WRITEMASK, GL_DITHER, GL_ELEMENT_ARRAY_BUFFER_BINDING, GL_FRAMEBUFFER_BINDING,
        GL_FRONT_FACE, GL_GENERATE_MIPMAP_HINT, GL_GREEN_BITS, GL_IMPLEMENTATION_COLOR_READ_FORMAT,
        GL_IMPLEMENTATION_COLOR_READ_TYPE, GL_LINE_WIDTH, GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,
        GL_MAX_CUBE_MAP_TEXTURE_SIZE, GL_MAX_FRAGMENT_UNIFORM_VECTORS, GL_MAX_RENDERBUFFER_SIZE,
        GL_MAX_TEXTURE_IMAGE_UNITS, GL_MAX_TEXTURE_SIZE, GL_MAX_VARYING_VECTORS,
        GL_MAX_VERTEX_ATTRIBS, GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_MAX_VERTEX_UNIFORM_VECTORS,
        GL_MAX_VIEWPORT_DIMS, GL_NUM_COMPRESSED_TEXTURE_FORMATS, GL_NUM_SHADER_BINARY_FORMATS,
        GL_PACK_ALIGNMENT, GL_POLYGON_OFFSET_FACTOR, GL_POLYGON_OFFSET_FILL,
        GL_POLYGON_OFFSET_UNITS, GL_RED_BITS, GL_RENDERBUFFER_BINDING, GL_SAMPLES,
        GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_BUFFERS, GL_SAMPLE_COVERAGE,
        GL_SAMPLE_COVERAGE_INVERT, GL_SAMPLE_COVERAGE_VALUE, GL_SCISSOR_BOX, GL_SCISSOR_TEST,
        GL_SHADER_BINARY_FORMATS, GL_SHADER_COMPILER, GL_STENCIL_BACK_FAIL, GL_STENCIL_BACK_FUNC,
        GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_STENCIL_BACK_PASS_DEPTH_PASS, GL_STENCIL_BACK_REF,
        GL_STENCIL_BACK_VALUE_MASK, GL_STENCIL_BACK_WRITEMASK, GL_STENCIL_BITS,
        GL_STENCIL_CLEAR_VALUE, GL_STENCIL_FAIL, GL_STENCIL_FUNC, GL_STENCIL_PASS_DEPTH_FAIL,
        GL_STENCIL_PASS_DEPTH_PASS, GL_STENCIL_REF, GL_STENCIL_TEST, GL_STENCIL_VALUE_MASK,
        GL_STENCIL_WRITEMASK, GL_SUBPIXEL_BITS, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_CUBE_MAP,
        GL_UNPACK_ALIGNMENT, GL_VIEWPORT: {
      // version 2.0
    }
    // TODO: GL_FRAMEBUFFER_BINDING seems to be removed in 3.0
    case GL_COPY_READ_BUFFER_BINDING, GL_COPY_WRITE_BUFFER_BINDING, GL_DRAW_BUFFER,
        GL_DRAW_FRAMEBUFFER_BINDING, GL_FRAGMENT_SHADER_DERIVATIVE_HINT, GL_MAJOR_VERSION,
        GL_MAX_3D_TEXTURE_SIZE, GL_MAX_ARRAY_TEXTURE_LAYERS, GL_MAX_COLOR_ATTACHMENTS,
        GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS, GL_MAX_COMBINED_UNIFORM_BLOCKS,
        GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, GL_MAX_DRAW_BUFFERS, GL_MAX_ELEMENTS_INDICES,
        GL_MAX_ELEMENTS_VERTICES, GL_MAX_ELEMENT_INDEX, GL_MAX_FRAGMENT_INPUT_COMPONENTS,
        GL_MAX_FRAGMENT_UNIFORM_BLOCKS, GL_MAX_FRAGMENT_UNIFORM_COMPONENTS,
        GL_MAX_PROGRAM_TEXEL_OFFSET, GL_MAX_SAMPLES, GL_MAX_SERVER_WAIT_TIMEOUT,
        GL_MAX_TEXTURE_LOD_BIAS, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
        GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
        GL_MAX_UNIFORM_BLOCK_SIZE, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_MAX_VARYING_COMPONENTS,
        GL_MAX_VERTEX_OUTPUT_COMPONENTS, GL_MAX_VERTEX_UNIFORM_BLOCKS,
        GL_MAX_VERTEX_UNIFORM_COMPONENTS, GL_MINOR_VERSION, GL_MIN_PROGRAM_TEXEL_OFFSET,
        GL_NUM_EXTENSIONS, GL_NUM_PROGRAM_BINARY_FORMATS, GL_PACK_ROW_LENGTH, GL_PACK_SKIP_PIXELS,
        GL_PACK_SKIP_ROWS, GL_PIXEL_PACK_BUFFER_BINDING, GL_PIXEL_UNPACK_BUFFER_BINDING,
        GL_PRIMITIVE_RESTART_FIXED_INDEX, GL_PROGRAM_BINARY_FORMATS, GL_RASTERIZER_DISCARD,
        GL_READ_BUFFER, GL_READ_FRAMEBUFFER_BINDING, GL_SAMPLER_BINDING,
        GL_TEXTURE_BINDING_2D_ARRAY, GL_TEXTURE_BINDING_3D, GL_TRANSFORM_FEEDBACK_ACTIVE,
        GL_TRANSFORM_FEEDBACK_BINDING, GL_TRANSFORM_FEEDBACK_BUFFER_BINDING,
        GL_TRANSFORM_FEEDBACK_BUFFER_SIZE, GL_TRANSFORM_FEEDBACK_BUFFER_START,
        GL_TRANSFORM_FEEDBACK_PAUSED, GL_UNIFORM_BUFFER_BINDING,
        GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_UNIFORM_BUFFER_SIZE, GL_UNIFORM_BUFFER_START,
        GL_UNPACK_IMAGE_HEIGHT, GL_UNPACK_ROW_LENGTH, GL_UNPACK_SKIP_IMAGES, GL_UNPACK_SKIP_PIXELS,
        GL_UNPACK_SKIP_ROWS, GL_VERTEX_ARRAY_BINDING: {
      minRequiredVersion(3, 0)
    }
    // TODO: GL_FRAMEBUFFER_BINDING seems to be removed in 3.1
    case GL_DISPATCH_INDIRECT_BUFFER_BINDING, GL_IMAGE_BINDING_LAYERED,
        GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS, GL_MAX_COLOR_TEXTURE_SAMPLES,
        GL_MAX_COMBINED_ATOMIC_COUNTERS, GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS, GL_MAX_COMPUTE_ATOMIC_COUNTERS,
        GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS, GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS,
        GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS, GL_MAX_COMPUTE_UNIFORM_BLOCKS,
        GL_MAX_COMPUTE_UNIFORM_COMPONENTS, GL_MAX_COMPUTE_WORK_GROUP_COUNT,
        GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS, GL_MAX_COMPUTE_WORK_GROUP_SIZE,
        GL_MAX_FRAGMENT_ATOMIC_COUNTERS, GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS,
        GL_MAX_FRAMEBUFFER_HEIGHT, GL_MAX_FRAMEBUFFER_SAMPLES, GL_MAX_FRAMEBUFFER_WIDTH,
        GL_MAX_INTEGER_SAMPLES, GL_MAX_SAMPLE_MASK_WORDS, GL_MAX_SHADER_STORAGE_BLOCK_SIZE,
        GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS, GL_MAX_UNIFORM_LOCATIONS,
        GL_MAX_VERTEX_ATOMIC_COUNTERS, GL_MAX_VERTEX_ATTRIB_BINDINGS,
        GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET, GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS,
        GL_PROGRAM_PIPELINE_BINDING, GL_SHADER_STORAGE_BUFFER_BINDING,
        GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT, GL_SHADER_STORAGE_BUFFER_SIZE,
        GL_SHADER_STORAGE_BUFFER_START, GL_TEXTURE_BINDING_2D_MULTISAMPLE,
        GL_VERTEX_BINDING_DIVISOR, GL_VERTEX_BINDING_OFFSET, GL_VERTEX_BINDING_STRIDE: {
      minRequiredVersion(3, 1)
    }
    default: {
      glErrorInvalidEnum(param)
    }
  }

  v := values[0:stateVariableSize(param)]
  ctx := GetContext()
  switch (param) {
    case GL_BLEND:
      v[0] = ctx.Capabilities[GL_BLEND]
    case GL_CULL_FACE:
      v[0] = ctx.Capabilities[GL_CULL_FACE]
    case GL_DEPTH_TEST:
      v[0] = ctx.Capabilities[GL_DEPTH_TEST]
    case GL_DITHER:
      v[0] = ctx.Capabilities[GL_DITHER]
    case GL_POLYGON_OFFSET_FILL:
      v[0] = ctx.Capabilities[GL_POLYGON_OFFSET_FILL]
    case GL_SAMPLE_ALPHA_TO_COVERAGE:
      v[0] = ctx.Capabilities[GL_SAMPLE_ALPHA_TO_COVERAGE]
    case GL_SAMPLE_COVERAGE:
      v[0] = ctx.Capabilities[GL_SAMPLE_COVERAGE]
    case GL_SCISSOR_TEST:
      v[0] = ctx.Capabilities[GL_SCISSOR_TEST]
    case GL_STENCIL_TEST:
      v[0] = ctx.Capabilities[GL_STENCIL_TEST]

    case GL_DEPTH_WRITEMASK:
      v[0] = ctx.Rasterizing.DepthMask
    case GL_COLOR_WRITEMASK: {
      v[0] = ctx.Rasterizing.ColorMaskRed
      v[1] = ctx.Rasterizing.ColorMaskGreen
      v[2] = ctx.Rasterizing.ColorMaskBlue
      v[3] = ctx.Rasterizing.ColorMaskAlpha
    }
    case GL_SAMPLE_COVERAGE_INVERT:
      v[0] = ctx.Rasterizing.SampleCoverageInvert
    case GL_SHADER_COMPILER:
      v[0] = ?
    case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT:
      v[0] = ?

  // TODO: all the values returned by glGetFloatv and glGetIntegerv can
  // be returned here with a type conversion where GL_FALSE is only returned
  // if the value is 0.0 (or 0).
  }
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml","OpenGL ES 2.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGet.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGet.xhtml","OpenGL ES 3.1")
cmd void glGetFloatv(GLenum param, GLfloat* values) {
  minRequiredVersion(2, 0)
  switch (param) {
    case GL_ACTIVE_TEXTURE, GL_ALIASED_LINE_WIDTH_RANGE, GL_ALIASED_POINT_SIZE_RANGE,
        GL_ALPHA_BITS, GL_ARRAY_BUFFER_BINDING, GL_BLEND, GL_BLEND_COLOR, GL_BLEND_DST_ALPHA,
        GL_BLEND_DST_RGB, GL_BLEND_EQUATION_ALPHA, GL_BLEND_EQUATION_RGB, GL_BLEND_SRC_ALPHA,
        GL_BLEND_SRC_RGB, GL_BLUE_BITS, GL_COLOR_CLEAR_VALUE, GL_COLOR_WRITEMASK,
        GL_COMPRESSED_TEXTURE_FORMATS, GL_CULL_FACE, GL_CULL_FACE_MODE, GL_CURRENT_PROGRAM,
        GL_DEPTH_BITS, GL_DEPTH_CLEAR_VALUE, GL_DEPTH_FUNC, GL_DEPTH_RANGE, GL_DEPTH_TEST,
        GL_DEPTH_WRITEMASK, GL_DITHER, GL_ELEMENT_ARRAY_BUFFER_BINDING, GL_FRAMEBUFFER_BINDING,
        GL_FRONT_FACE, GL_GENERATE_MIPMAP_HINT, GL_GREEN_BITS, GL_IMPLEMENTATION_COLOR_READ_FORMAT,
        GL_IMPLEMENTATION_COLOR_READ_TYPE, GL_LINE_WIDTH, GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,
        GL_MAX_CUBE_MAP_TEXTURE_SIZE, GL_MAX_FRAGMENT_UNIFORM_VECTORS, GL_MAX_RENDERBUFFER_SIZE,
        GL_MAX_TEXTURE_IMAGE_UNITS, GL_MAX_TEXTURE_SIZE, GL_MAX_VARYING_VECTORS,
        GL_MAX_VERTEX_ATTRIBS, GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_MAX_VERTEX_UNIFORM_VECTORS,
        GL_MAX_VIEWPORT_DIMS, GL_NUM_COMPRESSED_TEXTURE_FORMATS, GL_NUM_SHADER_BINARY_FORMATS,
        GL_PACK_ALIGNMENT, GL_POLYGON_OFFSET_FACTOR, GL_POLYGON_OFFSET_FILL,
        GL_POLYGON_OFFSET_UNITS, GL_RED_BITS, GL_RENDERBUFFER_BINDING, GL_SAMPLES,
        GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_BUFFERS, GL_SAMPLE_COVERAGE,
        GL_SAMPLE_COVERAGE_INVERT, GL_SAMPLE_COVERAGE_VALUE, GL_SCISSOR_BOX, GL_SCISSOR_TEST,
        GL_SHADER_BINARY_FORMATS, GL_SHADER_COMPILER, GL_STENCIL_BACK_FAIL, GL_STENCIL_BACK_FUNC,
        GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_STENCIL_BACK_PASS_DEPTH_PASS, GL_STENCIL_BACK_REF,
        GL_STENCIL_BACK_VALUE_MASK, GL_STENCIL_BACK_WRITEMASK, GL_STENCIL_BITS,
        GL_STENCIL_CLEAR_VALUE, GL_STENCIL_FAIL, GL_STENCIL_FUNC, GL_STENCIL_PASS_DEPTH_FAIL,
        GL_STENCIL_PASS_DEPTH_PASS, GL_STENCIL_REF, GL_STENCIL_TEST, GL_STENCIL_VALUE_MASK,
        GL_STENCIL_WRITEMASK, GL_SUBPIXEL_BITS, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_CUBE_MAP,
        GL_UNPACK_ALIGNMENT, GL_VIEWPORT: {
      // version 2.0
    }
    // TODO: GL_FRAMEBUFFER_BINDING seems to be removed in 3.0
    case GL_COPY_READ_BUFFER_BINDING, GL_COPY_WRITE_BUFFER_BINDING, GL_DRAW_BUFFER,
        GL_DRAW_FRAMEBUFFER_BINDING, GL_FRAGMENT_SHADER_DERIVATIVE_HINT, GL_MAJOR_VERSION,
        GL_MAX_3D_TEXTURE_SIZE, GL_MAX_ARRAY_TEXTURE_LAYERS, GL_MAX_COLOR_ATTACHMENTS,
        GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS, GL_MAX_COMBINED_UNIFORM_BLOCKS,
        GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, GL_MAX_DRAW_BUFFERS, GL_MAX_ELEMENTS_INDICES,
        GL_MAX_ELEMENTS_VERTICES, GL_MAX_ELEMENT_INDEX, GL_MAX_FRAGMENT_INPUT_COMPONENTS,
        GL_MAX_FRAGMENT_UNIFORM_BLOCKS, GL_MAX_FRAGMENT_UNIFORM_COMPONENTS,
        GL_MAX_PROGRAM_TEXEL_OFFSET, GL_MAX_SAMPLES, GL_MAX_SERVER_WAIT_TIMEOUT,
        GL_MAX_TEXTURE_LOD_BIAS, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
        GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
        GL_MAX_UNIFORM_BLOCK_SIZE, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_MAX_VARYING_COMPONENTS,
        GL_MAX_VERTEX_OUTPUT_COMPONENTS, GL_MAX_VERTEX_UNIFORM_BLOCKS,
        GL_MAX_VERTEX_UNIFORM_COMPONENTS, GL_MINOR_VERSION, GL_MIN_PROGRAM_TEXEL_OFFSET,
        GL_NUM_EXTENSIONS, GL_NUM_PROGRAM_BINARY_FORMATS, GL_PACK_ROW_LENGTH, GL_PACK_SKIP_PIXELS,
        GL_PACK_SKIP_ROWS, GL_PIXEL_PACK_BUFFER_BINDING, GL_PIXEL_UNPACK_BUFFER_BINDING,
        GL_PRIMITIVE_RESTART_FIXED_INDEX, GL_PROGRAM_BINARY_FORMATS, GL_RASTERIZER_DISCARD,
        GL_READ_BUFFER, GL_READ_FRAMEBUFFER_BINDING, GL_SAMPLER_BINDING,
        GL_TEXTURE_BINDING_2D_ARRAY, GL_TEXTURE_BINDING_3D, GL_TRANSFORM_FEEDBACK_ACTIVE,
        GL_TRANSFORM_FEEDBACK_BINDING, GL_TRANSFORM_FEEDBACK_BUFFER_BINDING,
        GL_TRANSFORM_FEEDBACK_BUFFER_SIZE, GL_TRANSFORM_FEEDBACK_BUFFER_START,
        GL_TRANSFORM_FEEDBACK_PAUSED, GL_UNIFORM_BUFFER_BINDING,
        GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_UNIFORM_BUFFER_SIZE, GL_UNIFORM_BUFFER_START,
        GL_UNPACK_IMAGE_HEIGHT, GL_UNPACK_ROW_LENGTH, GL_UNPACK_SKIP_IMAGES, GL_UNPACK_SKIP_PIXELS,
        GL_UNPACK_SKIP_ROWS, GL_VERTEX_ARRAY_BINDING: {
      minRequiredVersion(3, 0)
    }
    // TODO: GL_FRAMEBUFFER_BINDING seems to be removed in 3.1
    case GL_DISPATCH_INDIRECT_BUFFER_BINDING, GL_IMAGE_BINDING_LAYERED,
        GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS, GL_MAX_COLOR_TEXTURE_SAMPLES,
        GL_MAX_COMBINED_ATOMIC_COUNTERS, GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS, GL_MAX_COMPUTE_ATOMIC_COUNTERS,
        GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS, GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS,
        GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS, GL_MAX_COMPUTE_UNIFORM_BLOCKS,
        GL_MAX_COMPUTE_UNIFORM_COMPONENTS, GL_MAX_COMPUTE_WORK_GROUP_COUNT,
        GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS, GL_MAX_COMPUTE_WORK_GROUP_SIZE,
        GL_MAX_FRAGMENT_ATOMIC_COUNTERS, GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS,
        GL_MAX_FRAMEBUFFER_HEIGHT, GL_MAX_FRAMEBUFFER_SAMPLES, GL_MAX_FRAMEBUFFER_WIDTH,
        GL_MAX_INTEGER_SAMPLES, GL_MAX_SAMPLE_MASK_WORDS, GL_MAX_SHADER_STORAGE_BLOCK_SIZE,
        GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS, GL_MAX_UNIFORM_LOCATIONS,
        GL_MAX_VERTEX_ATOMIC_COUNTERS, GL_MAX_VERTEX_ATTRIB_BINDINGS,
        GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET, GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS,
        GL_PROGRAM_PIPELINE_BINDING, GL_SHADER_STORAGE_BUFFER_BINDING,
        GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT, GL_SHADER_STORAGE_BUFFER_SIZE,
        GL_SHADER_STORAGE_BUFFER_START, GL_TEXTURE_BINDING_2D_MULTISAMPLE,
        GL_VERTEX_BINDING_DIVISOR, GL_VERTEX_BINDING_OFFSET, GL_VERTEX_BINDING_STRIDE: {
      minRequiredVersion(3, 1)
    }
    default: {
      glErrorInvalidEnum(param)
    }
  }

  v := values[0:stateVariableSize(param)]
  ctx := GetContext()
  switch (param) {
    case GL_DEPTH_RANGE: {
      v[0] = ctx.Rasterizing.DepthNear
      v[1] = ctx.Rasterizing.DepthFar
    }
    case GL_LINE_WIDTH:
      v[0] = ctx.Rasterizing.LineWidth
    case GL_POLYGON_OFFSET_FACTOR:
      v[0] = ctx.Rasterizing.PolygonOffsetFactor
    case GL_POLYGON_OFFSET_UNITS:
      v[0] = ctx.Rasterizing.PolygonOffsetUnits
    case GL_SAMPLE_COVERAGE_VALUE:
      v[0] = ctx.Rasterizing.SampleCoverageValue
    case GL_COLOR_CLEAR_VALUE: {
      v[0] = ctx.Clearing.ClearColor.Red
      v[1] = ctx.Clearing.ClearColor.Green
      v[2] = ctx.Clearing.ClearColor.Blue
      v[3] = ctx.Clearing.ClearColor.Alpha
    }
    case GL_DEPTH_CLEAR_VALUE:
      v[0] = ctx.Clearing.ClearDepth
    case GL_ALIASED_LINE_WIDTH_RANGE: {
      v[0] = ? /* smallest */
      v[1] = ? /* largest */
    }
    case GL_ALIASED_POINT_SIZE_RANGE: {
      v[0] = ? /* smallest */
      v[1] = ? /* largest */
    }
    case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT:
      v[0] = ?

  // TODO: all the values returned by glGetBooleanv and glGetIntegerv can
  // be returned here with a type conversion.
  }
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGet.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGet.xhtml","OpenGL ES 3.1")
cmd void glGetInteger64i_v(GLenum target, GLuint index, GLint64* data) {
  minRequiredVersion(3, 0)
  switch (target) {
    case GL_ACTIVE_TEXTURE, GL_ALIASED_LINE_WIDTH_RANGE, GL_ALIASED_POINT_SIZE_RANGE,
        GL_ALPHA_BITS, GL_ARRAY_BUFFER_BINDING, GL_BLEND, GL_BLEND_COLOR, GL_BLEND_DST_ALPHA,
        GL_BLEND_DST_RGB, GL_BLEND_EQUATION_ALPHA, GL_BLEND_EQUATION_RGB, GL_BLEND_SRC_ALPHA,
        GL_BLEND_SRC_RGB, GL_BLUE_BITS, GL_COLOR_CLEAR_VALUE, GL_COLOR_WRITEMASK,
        GL_COMPRESSED_TEXTURE_FORMATS, GL_COPY_READ_BUFFER_BINDING, GL_COPY_WRITE_BUFFER_BINDING,
        GL_CULL_FACE, GL_CULL_FACE_MODE, GL_CURRENT_PROGRAM, GL_DEPTH_BITS, GL_DEPTH_CLEAR_VALUE,
        GL_DEPTH_FUNC, GL_DEPTH_RANGE, GL_DEPTH_TEST, GL_DEPTH_WRITEMASK, GL_DITHER,
        GL_DRAW_BUFFER, GL_DRAW_FRAMEBUFFER_BINDING, GL_ELEMENT_ARRAY_BUFFER_BINDING,
        GL_FRAGMENT_SHADER_DERIVATIVE_HINT, GL_FRONT_FACE, GL_GENERATE_MIPMAP_HINT, GL_GREEN_BITS,
        GL_IMPLEMENTATION_COLOR_READ_FORMAT, GL_IMPLEMENTATION_COLOR_READ_TYPE, GL_LINE_WIDTH,
        GL_MAJOR_VERSION, GL_MAX_3D_TEXTURE_SIZE, GL_MAX_ARRAY_TEXTURE_LAYERS,
        GL_MAX_COLOR_ATTACHMENTS, GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, GL_MAX_COMBINED_UNIFORM_BLOCKS,
        GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, GL_MAX_CUBE_MAP_TEXTURE_SIZE,
        GL_MAX_DRAW_BUFFERS, GL_MAX_ELEMENTS_INDICES, GL_MAX_ELEMENTS_VERTICES,
        GL_MAX_ELEMENT_INDEX, GL_MAX_FRAGMENT_INPUT_COMPONENTS, GL_MAX_FRAGMENT_UNIFORM_BLOCKS,
        GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, GL_MAX_FRAGMENT_UNIFORM_VECTORS,
        GL_MAX_PROGRAM_TEXEL_OFFSET, GL_MAX_RENDERBUFFER_SIZE, GL_MAX_SAMPLES,
        GL_MAX_SERVER_WAIT_TIMEOUT, GL_MAX_TEXTURE_IMAGE_UNITS, GL_MAX_TEXTURE_LOD_BIAS,
        GL_MAX_TEXTURE_SIZE, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
        GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
        GL_MAX_UNIFORM_BLOCK_SIZE, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_MAX_VARYING_COMPONENTS,
        GL_MAX_VARYING_VECTORS, GL_MAX_VERTEX_ATTRIBS, GL_MAX_VERTEX_OUTPUT_COMPONENTS,
        GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_MAX_VERTEX_UNIFORM_BLOCKS,
        GL_MAX_VERTEX_UNIFORM_COMPONENTS, GL_MAX_VERTEX_UNIFORM_VECTORS, GL_MAX_VIEWPORT_DIMS,
        GL_MINOR_VERSION, GL_MIN_PROGRAM_TEXEL_OFFSET, GL_NUM_COMPRESSED_TEXTURE_FORMATS,
        GL_NUM_EXTENSIONS, GL_NUM_PROGRAM_BINARY_FORMATS, GL_NUM_SHADER_BINARY_FORMATS,
        GL_PACK_ALIGNMENT, GL_PACK_ROW_LENGTH, GL_PACK_SKIP_PIXELS, GL_PACK_SKIP_ROWS,
        GL_PIXEL_PACK_BUFFER_BINDING, GL_PIXEL_UNPACK_BUFFER_BINDING, GL_POLYGON_OFFSET_FACTOR,
        GL_POLYGON_OFFSET_FILL, GL_POLYGON_OFFSET_UNITS, GL_PRIMITIVE_RESTART_FIXED_INDEX,
        GL_PROGRAM_BINARY_FORMATS, GL_RASTERIZER_DISCARD, GL_READ_BUFFER,
        GL_READ_FRAMEBUFFER_BINDING, GL_RED_BITS, GL_RENDERBUFFER_BINDING, GL_SAMPLER_BINDING,
        GL_SAMPLES, GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_BUFFERS, GL_SAMPLE_COVERAGE,
        GL_SAMPLE_COVERAGE_INVERT, GL_SAMPLE_COVERAGE_VALUE, GL_SCISSOR_BOX, GL_SCISSOR_TEST,
        GL_SHADER_BINARY_FORMATS, GL_SHADER_COMPILER, GL_STENCIL_BACK_FAIL, GL_STENCIL_BACK_FUNC,
        GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_STENCIL_BACK_PASS_DEPTH_PASS, GL_STENCIL_BACK_REF,
        GL_STENCIL_BACK_VALUE_MASK, GL_STENCIL_BACK_WRITEMASK, GL_STENCIL_BITS,
        GL_STENCIL_CLEAR_VALUE, GL_STENCIL_FAIL, GL_STENCIL_FUNC, GL_STENCIL_PASS_DEPTH_FAIL,
        GL_STENCIL_PASS_DEPTH_PASS, GL_STENCIL_REF, GL_STENCIL_TEST, GL_STENCIL_VALUE_MASK,
        GL_STENCIL_WRITEMASK, GL_SUBPIXEL_BITS, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_2D_ARRAY,
        GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_CUBE_MAP, GL_TRANSFORM_FEEDBACK_ACTIVE,
        GL_TRANSFORM_FEEDBACK_BINDING, GL_TRANSFORM_FEEDBACK_BUFFER_BINDING,
        GL_TRANSFORM_FEEDBACK_BUFFER_SIZE, GL_TRANSFORM_FEEDBACK_BUFFER_START,
        GL_TRANSFORM_FEEDBACK_PAUSED, GL_UNIFORM_BUFFER_BINDING,
        GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_UNIFORM_BUFFER_SIZE, GL_UNIFORM_BUFFER_START,
        GL_UNPACK_ALIGNMENT, GL_UNPACK_IMAGE_HEIGHT, GL_UNPACK_ROW_LENGTH, GL_UNPACK_SKIP_IMAGES,
        GL_UNPACK_SKIP_PIXELS, GL_UNPACK_SKIP_ROWS, GL_VERTEX_ARRAY_BINDING, GL_VIEWPORT: {
      // version 3.0
    }
    case GL_DISPATCH_INDIRECT_BUFFER_BINDING, GL_IMAGE_BINDING_LAYERED,
        GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS, GL_MAX_COLOR_TEXTURE_SAMPLES,
        GL_MAX_COMBINED_ATOMIC_COUNTERS, GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS, GL_MAX_COMPUTE_ATOMIC_COUNTERS,
        GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS, GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS,
        GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS, GL_MAX_COMPUTE_UNIFORM_BLOCKS,
        GL_MAX_COMPUTE_UNIFORM_COMPONENTS, GL_MAX_COMPUTE_WORK_GROUP_COUNT,
        GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS, GL_MAX_COMPUTE_WORK_GROUP_SIZE,
        GL_MAX_FRAGMENT_ATOMIC_COUNTERS, GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS,
        GL_MAX_FRAMEBUFFER_HEIGHT, GL_MAX_FRAMEBUFFER_SAMPLES, GL_MAX_FRAMEBUFFER_WIDTH,
        GL_MAX_INTEGER_SAMPLES, GL_MAX_SAMPLE_MASK_WORDS, GL_MAX_SHADER_STORAGE_BLOCK_SIZE,
        GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS, GL_MAX_UNIFORM_LOCATIONS,
        GL_MAX_VERTEX_ATOMIC_COUNTERS, GL_MAX_VERTEX_ATTRIB_BINDINGS,
        GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET, GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS,
        GL_PROGRAM_PIPELINE_BINDING, GL_SHADER_STORAGE_BUFFER_BINDING,
        GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT, GL_SHADER_STORAGE_BUFFER_SIZE,
        GL_SHADER_STORAGE_BUFFER_START, GL_TEXTURE_BINDING_2D_MULTISAMPLE,
        GL_VERTEX_BINDING_DIVISOR, GL_VERTEX_BINDING_OFFSET, GL_VERTEX_BINDING_STRIDE: {
      minRequiredVersion(3, 1)
    }
    default: {
      glErrorInvalidEnum(target)
    }
  }
  // TODO
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGet.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGet.xhtml","OpenGL ES 3.1")
cmd void glGetInteger64v(GLenum pname, GLint64* data) {
  minRequiredVersion(3, 0)
  switch (pname) {
    case GL_ACTIVE_TEXTURE, GL_ALIASED_LINE_WIDTH_RANGE, GL_ALIASED_POINT_SIZE_RANGE,
        GL_ALPHA_BITS, GL_ARRAY_BUFFER_BINDING, GL_BLEND, GL_BLEND_COLOR, GL_BLEND_DST_ALPHA,
        GL_BLEND_DST_RGB, GL_BLEND_EQUATION_ALPHA, GL_BLEND_EQUATION_RGB, GL_BLEND_SRC_ALPHA,
        GL_BLEND_SRC_RGB, GL_BLUE_BITS, GL_COLOR_CLEAR_VALUE, GL_COLOR_WRITEMASK,
        GL_COMPRESSED_TEXTURE_FORMATS, GL_COPY_READ_BUFFER_BINDING, GL_COPY_WRITE_BUFFER_BINDING,
        GL_CULL_FACE, GL_CULL_FACE_MODE, GL_CURRENT_PROGRAM, GL_DEPTH_BITS, GL_DEPTH_CLEAR_VALUE,
        GL_DEPTH_FUNC, GL_DEPTH_RANGE, GL_DEPTH_TEST, GL_DEPTH_WRITEMASK, GL_DITHER,
        GL_DRAW_BUFFER, GL_DRAW_FRAMEBUFFER_BINDING, GL_ELEMENT_ARRAY_BUFFER_BINDING,
        GL_FRAGMENT_SHADER_DERIVATIVE_HINT, GL_FRONT_FACE, GL_GENERATE_MIPMAP_HINT, GL_GREEN_BITS,
        GL_IMPLEMENTATION_COLOR_READ_FORMAT, GL_IMPLEMENTATION_COLOR_READ_TYPE, GL_LINE_WIDTH,
        GL_MAJOR_VERSION, GL_MAX_3D_TEXTURE_SIZE, GL_MAX_ARRAY_TEXTURE_LAYERS,
        GL_MAX_COLOR_ATTACHMENTS, GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, GL_MAX_COMBINED_UNIFORM_BLOCKS,
        GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, GL_MAX_CUBE_MAP_TEXTURE_SIZE,
        GL_MAX_DRAW_BUFFERS, GL_MAX_ELEMENTS_INDICES, GL_MAX_ELEMENTS_VERTICES,
        GL_MAX_ELEMENT_INDEX, GL_MAX_FRAGMENT_INPUT_COMPONENTS, GL_MAX_FRAGMENT_UNIFORM_BLOCKS,
        GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, GL_MAX_FRAGMENT_UNIFORM_VECTORS,
        GL_MAX_PROGRAM_TEXEL_OFFSET, GL_MAX_RENDERBUFFER_SIZE, GL_MAX_SAMPLES,
        GL_MAX_SERVER_WAIT_TIMEOUT, GL_MAX_TEXTURE_IMAGE_UNITS, GL_MAX_TEXTURE_LOD_BIAS,
        GL_MAX_TEXTURE_SIZE, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
        GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
        GL_MAX_UNIFORM_BLOCK_SIZE, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_MAX_VARYING_COMPONENTS,
        GL_MAX_VARYING_VECTORS, GL_MAX_VERTEX_ATTRIBS, GL_MAX_VERTEX_OUTPUT_COMPONENTS,
        GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_MAX_VERTEX_UNIFORM_BLOCKS,
        GL_MAX_VERTEX_UNIFORM_COMPONENTS, GL_MAX_VERTEX_UNIFORM_VECTORS, GL_MAX_VIEWPORT_DIMS,
        GL_MINOR_VERSION, GL_MIN_PROGRAM_TEXEL_OFFSET, GL_NUM_COMPRESSED_TEXTURE_FORMATS,
        GL_NUM_EXTENSIONS, GL_NUM_PROGRAM_BINARY_FORMATS, GL_NUM_SHADER_BINARY_FORMATS,
        GL_PACK_ALIGNMENT, GL_PACK_ROW_LENGTH, GL_PACK_SKIP_PIXELS, GL_PACK_SKIP_ROWS,
        GL_PIXEL_PACK_BUFFER_BINDING, GL_PIXEL_UNPACK_BUFFER_BINDING, GL_POLYGON_OFFSET_FACTOR,
        GL_POLYGON_OFFSET_FILL, GL_POLYGON_OFFSET_UNITS, GL_PRIMITIVE_RESTART_FIXED_INDEX,
        GL_PROGRAM_BINARY_FORMATS, GL_RASTERIZER_DISCARD, GL_READ_BUFFER,
        GL_READ_FRAMEBUFFER_BINDING, GL_RED_BITS, GL_RENDERBUFFER_BINDING, GL_SAMPLER_BINDING,
        GL_SAMPLES, GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_BUFFERS, GL_SAMPLE_COVERAGE,
        GL_SAMPLE_COVERAGE_INVERT, GL_SAMPLE_COVERAGE_VALUE, GL_SCISSOR_BOX, GL_SCISSOR_TEST,
        GL_SHADER_BINARY_FORMATS, GL_SHADER_COMPILER, GL_STENCIL_BACK_FAIL, GL_STENCIL_BACK_FUNC,
        GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_STENCIL_BACK_PASS_DEPTH_PASS, GL_STENCIL_BACK_REF,
        GL_STENCIL_BACK_VALUE_MASK, GL_STENCIL_BACK_WRITEMASK, GL_STENCIL_BITS,
        GL_STENCIL_CLEAR_VALUE, GL_STENCIL_FAIL, GL_STENCIL_FUNC, GL_STENCIL_PASS_DEPTH_FAIL,
        GL_STENCIL_PASS_DEPTH_PASS, GL_STENCIL_REF, GL_STENCIL_TEST, GL_STENCIL_VALUE_MASK,
        GL_STENCIL_WRITEMASK, GL_SUBPIXEL_BITS, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_2D_ARRAY,
        GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_CUBE_MAP, GL_TRANSFORM_FEEDBACK_ACTIVE,
        GL_TRANSFORM_FEEDBACK_BINDING, GL_TRANSFORM_FEEDBACK_BUFFER_BINDING,
        GL_TRANSFORM_FEEDBACK_BUFFER_SIZE, GL_TRANSFORM_FEEDBACK_BUFFER_START,
        GL_TRANSFORM_FEEDBACK_PAUSED, GL_UNIFORM_BUFFER_BINDING,
        GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_UNIFORM_BUFFER_SIZE, GL_UNIFORM_BUFFER_START,
        GL_UNPACK_ALIGNMENT, GL_UNPACK_IMAGE_HEIGHT, GL_UNPACK_ROW_LENGTH, GL_UNPACK_SKIP_IMAGES,
        GL_UNPACK_SKIP_PIXELS, GL_UNPACK_SKIP_ROWS, GL_VERTEX_ARRAY_BINDING, GL_VIEWPORT: {
      // version 3.0
    }
    case GL_DISPATCH_INDIRECT_BUFFER_BINDING, GL_IMAGE_BINDING_LAYERED,
        GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS, GL_MAX_COLOR_TEXTURE_SAMPLES,
        GL_MAX_COMBINED_ATOMIC_COUNTERS, GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS, GL_MAX_COMPUTE_ATOMIC_COUNTERS,
        GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS, GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS,
        GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS, GL_MAX_COMPUTE_UNIFORM_BLOCKS,
        GL_MAX_COMPUTE_UNIFORM_COMPONENTS, GL_MAX_COMPUTE_WORK_GROUP_COUNT,
        GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS, GL_MAX_COMPUTE_WORK_GROUP_SIZE,
        GL_MAX_FRAGMENT_ATOMIC_COUNTERS, GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS,
        GL_MAX_FRAMEBUFFER_HEIGHT, GL_MAX_FRAMEBUFFER_SAMPLES, GL_MAX_FRAMEBUFFER_WIDTH,
        GL_MAX_INTEGER_SAMPLES, GL_MAX_SAMPLE_MASK_WORDS, GL_MAX_SHADER_STORAGE_BLOCK_SIZE,
        GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS, GL_MAX_UNIFORM_LOCATIONS,
        GL_MAX_VERTEX_ATOMIC_COUNTERS, GL_MAX_VERTEX_ATTRIB_BINDINGS,
        GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET, GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS,
        GL_PROGRAM_PIPELINE_BINDING, GL_SHADER_STORAGE_BUFFER_BINDING,
        GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT, GL_SHADER_STORAGE_BUFFER_SIZE,
        GL_SHADER_STORAGE_BUFFER_START, GL_TEXTURE_BINDING_2D_MULTISAMPLE,
        GL_VERTEX_BINDING_DIVISOR, GL_VERTEX_BINDING_OFFSET, GL_VERTEX_BINDING_STRIDE: {
      minRequiredVersion(3, 1)
    }
    default: {
      glErrorInvalidEnum(pname)
    }
  }
  // TODO
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGet.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGet.xhtml","OpenGL ES 3.1")
cmd void glGetIntegeri_v(GLenum target, GLuint index, GLint* data) {
  minRequiredVersion(3, 0)
  switch (target) {
    case GL_ACTIVE_TEXTURE, GL_ALIASED_LINE_WIDTH_RANGE, GL_ALIASED_POINT_SIZE_RANGE,
        GL_ALPHA_BITS, GL_ARRAY_BUFFER_BINDING, GL_BLEND, GL_BLEND_COLOR, GL_BLEND_DST_ALPHA,
        GL_BLEND_DST_RGB, GL_BLEND_EQUATION_ALPHA, GL_BLEND_EQUATION_RGB, GL_BLEND_SRC_ALPHA,
        GL_BLEND_SRC_RGB, GL_BLUE_BITS, GL_COLOR_CLEAR_VALUE, GL_COLOR_WRITEMASK,
        GL_COMPRESSED_TEXTURE_FORMATS, GL_COPY_READ_BUFFER_BINDING, GL_COPY_WRITE_BUFFER_BINDING,
        GL_CULL_FACE, GL_CULL_FACE_MODE, GL_CURRENT_PROGRAM, GL_DEPTH_BITS, GL_DEPTH_CLEAR_VALUE,
        GL_DEPTH_FUNC, GL_DEPTH_RANGE, GL_DEPTH_TEST, GL_DEPTH_WRITEMASK, GL_DITHER,
        GL_DRAW_BUFFER, GL_DRAW_FRAMEBUFFER_BINDING, GL_ELEMENT_ARRAY_BUFFER_BINDING,
        GL_FRAGMENT_SHADER_DERIVATIVE_HINT, GL_FRONT_FACE, GL_GENERATE_MIPMAP_HINT, GL_GREEN_BITS,
        GL_IMPLEMENTATION_COLOR_READ_FORMAT, GL_IMPLEMENTATION_COLOR_READ_TYPE, GL_LINE_WIDTH,
        GL_MAJOR_VERSION, GL_MAX_3D_TEXTURE_SIZE, GL_MAX_ARRAY_TEXTURE_LAYERS,
        GL_MAX_COLOR_ATTACHMENTS, GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, GL_MAX_COMBINED_UNIFORM_BLOCKS,
        GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, GL_MAX_CUBE_MAP_TEXTURE_SIZE,
        GL_MAX_DRAW_BUFFERS, GL_MAX_ELEMENTS_INDICES, GL_MAX_ELEMENTS_VERTICES,
        GL_MAX_ELEMENT_INDEX, GL_MAX_FRAGMENT_INPUT_COMPONENTS, GL_MAX_FRAGMENT_UNIFORM_BLOCKS,
        GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, GL_MAX_FRAGMENT_UNIFORM_VECTORS,
        GL_MAX_PROGRAM_TEXEL_OFFSET, GL_MAX_RENDERBUFFER_SIZE, GL_MAX_SAMPLES,
        GL_MAX_SERVER_WAIT_TIMEOUT, GL_MAX_TEXTURE_IMAGE_UNITS, GL_MAX_TEXTURE_LOD_BIAS,
        GL_MAX_TEXTURE_SIZE, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
        GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
        GL_MAX_UNIFORM_BLOCK_SIZE, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_MAX_VARYING_COMPONENTS,
        GL_MAX_VARYING_VECTORS, GL_MAX_VERTEX_ATTRIBS, GL_MAX_VERTEX_OUTPUT_COMPONENTS,
        GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_MAX_VERTEX_UNIFORM_BLOCKS,
        GL_MAX_VERTEX_UNIFORM_COMPONENTS, GL_MAX_VERTEX_UNIFORM_VECTORS, GL_MAX_VIEWPORT_DIMS,
        GL_MINOR_VERSION, GL_MIN_PROGRAM_TEXEL_OFFSET, GL_NUM_COMPRESSED_TEXTURE_FORMATS,
        GL_NUM_EXTENSIONS, GL_NUM_PROGRAM_BINARY_FORMATS, GL_NUM_SHADER_BINARY_FORMATS,
        GL_PACK_ALIGNMENT, GL_PACK_ROW_LENGTH, GL_PACK_SKIP_PIXELS, GL_PACK_SKIP_ROWS,
        GL_PIXEL_PACK_BUFFER_BINDING, GL_PIXEL_UNPACK_BUFFER_BINDING, GL_POLYGON_OFFSET_FACTOR,
        GL_POLYGON_OFFSET_FILL, GL_POLYGON_OFFSET_UNITS, GL_PRIMITIVE_RESTART_FIXED_INDEX,
        GL_PROGRAM_BINARY_FORMATS, GL_RASTERIZER_DISCARD, GL_READ_BUFFER,
        GL_READ_FRAMEBUFFER_BINDING, GL_RED_BITS, GL_RENDERBUFFER_BINDING, GL_SAMPLER_BINDING,
        GL_SAMPLES, GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_BUFFERS, GL_SAMPLE_COVERAGE,
        GL_SAMPLE_COVERAGE_INVERT, GL_SAMPLE_COVERAGE_VALUE, GL_SCISSOR_BOX, GL_SCISSOR_TEST,
        GL_SHADER_BINARY_FORMATS, GL_SHADER_COMPILER, GL_STENCIL_BACK_FAIL, GL_STENCIL_BACK_FUNC,
        GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_STENCIL_BACK_PASS_DEPTH_PASS, GL_STENCIL_BACK_REF,
        GL_STENCIL_BACK_VALUE_MASK, GL_STENCIL_BACK_WRITEMASK, GL_STENCIL_BITS,
        GL_STENCIL_CLEAR_VALUE, GL_STENCIL_FAIL, GL_STENCIL_FUNC, GL_STENCIL_PASS_DEPTH_FAIL,
        GL_STENCIL_PASS_DEPTH_PASS, GL_STENCIL_REF, GL_STENCIL_TEST, GL_STENCIL_VALUE_MASK,
        GL_STENCIL_WRITEMASK, GL_SUBPIXEL_BITS, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_2D_ARRAY,
        GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_CUBE_MAP, GL_TRANSFORM_FEEDBACK_ACTIVE,
        GL_TRANSFORM_FEEDBACK_BINDING, GL_TRANSFORM_FEEDBACK_BUFFER_BINDING,
        GL_TRANSFORM_FEEDBACK_BUFFER_SIZE, GL_TRANSFORM_FEEDBACK_BUFFER_START,
        GL_TRANSFORM_FEEDBACK_PAUSED, GL_UNIFORM_BUFFER_BINDING,
        GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_UNIFORM_BUFFER_SIZE, GL_UNIFORM_BUFFER_START,
        GL_UNPACK_ALIGNMENT, GL_UNPACK_IMAGE_HEIGHT, GL_UNPACK_ROW_LENGTH, GL_UNPACK_SKIP_IMAGES,
        GL_UNPACK_SKIP_PIXELS, GL_UNPACK_SKIP_ROWS, GL_VERTEX_ARRAY_BINDING, GL_VIEWPORT: {
      // version 3.0
    }
    case GL_DISPATCH_INDIRECT_BUFFER_BINDING, GL_IMAGE_BINDING_LAYERED,
        GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS, GL_MAX_COLOR_TEXTURE_SAMPLES,
        GL_MAX_COMBINED_ATOMIC_COUNTERS, GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS, GL_MAX_COMPUTE_ATOMIC_COUNTERS,
        GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS, GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS,
        GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS, GL_MAX_COMPUTE_UNIFORM_BLOCKS,
        GL_MAX_COMPUTE_UNIFORM_COMPONENTS, GL_MAX_COMPUTE_WORK_GROUP_COUNT,
        GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS, GL_MAX_COMPUTE_WORK_GROUP_SIZE,
        GL_MAX_FRAGMENT_ATOMIC_COUNTERS, GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS,
        GL_MAX_FRAMEBUFFER_HEIGHT, GL_MAX_FRAMEBUFFER_SAMPLES, GL_MAX_FRAMEBUFFER_WIDTH,
        GL_MAX_INTEGER_SAMPLES, GL_MAX_SAMPLE_MASK_WORDS, GL_MAX_SHADER_STORAGE_BLOCK_SIZE,
        GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS, GL_MAX_UNIFORM_LOCATIONS,
        GL_MAX_VERTEX_ATOMIC_COUNTERS, GL_MAX_VERTEX_ATTRIB_BINDINGS,
        GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET, GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS,
        GL_PROGRAM_PIPELINE_BINDING, GL_SHADER_STORAGE_BUFFER_BINDING,
        GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT, GL_SHADER_STORAGE_BUFFER_SIZE,
        GL_SHADER_STORAGE_BUFFER_START, GL_TEXTURE_BINDING_2D_MULTISAMPLE,
        GL_VERTEX_BINDING_DIVISOR, GL_VERTEX_BINDING_OFFSET, GL_VERTEX_BINDING_STRIDE: {
      minRequiredVersion(3, 1)
    }
    default: {
      glErrorInvalidEnum(target)
    }
  }
  // TODO
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGet.xml","OpenGL ES 2.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGet.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGet.xhtml","OpenGL ES 3.1")
cmd void glGetIntegerv(GLenum param, GLint* values) {
  minRequiredVersion(2, 0)
  switch (param) {
    case GL_ACTIVE_TEXTURE, GL_ALIASED_LINE_WIDTH_RANGE, GL_ALIASED_POINT_SIZE_RANGE,
        GL_ALPHA_BITS, GL_ARRAY_BUFFER_BINDING, GL_BLEND, GL_BLEND_COLOR, GL_BLEND_DST_ALPHA,
        GL_BLEND_DST_RGB, GL_BLEND_EQUATION_ALPHA, GL_BLEND_EQUATION_RGB, GL_BLEND_SRC_ALPHA,
        GL_BLEND_SRC_RGB, GL_BLUE_BITS, GL_COLOR_CLEAR_VALUE, GL_COLOR_WRITEMASK,
        GL_COMPRESSED_TEXTURE_FORMATS, GL_CULL_FACE, GL_CULL_FACE_MODE, GL_CURRENT_PROGRAM,
        GL_DEPTH_BITS, GL_DEPTH_CLEAR_VALUE, GL_DEPTH_FUNC, GL_DEPTH_RANGE, GL_DEPTH_TEST,
        GL_DEPTH_WRITEMASK, GL_DITHER, GL_ELEMENT_ARRAY_BUFFER_BINDING, GL_FRAMEBUFFER_BINDING,
        GL_FRONT_FACE, GL_GENERATE_MIPMAP_HINT, GL_GREEN_BITS, GL_IMPLEMENTATION_COLOR_READ_FORMAT,
        GL_IMPLEMENTATION_COLOR_READ_TYPE, GL_LINE_WIDTH, GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,
        GL_MAX_CUBE_MAP_TEXTURE_SIZE, GL_MAX_FRAGMENT_UNIFORM_VECTORS, GL_MAX_RENDERBUFFER_SIZE,
        GL_MAX_TEXTURE_IMAGE_UNITS, GL_MAX_TEXTURE_SIZE, GL_MAX_VARYING_VECTORS,
        GL_MAX_VERTEX_ATTRIBS, GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, GL_MAX_VERTEX_UNIFORM_VECTORS,
        GL_MAX_VIEWPORT_DIMS, GL_NUM_COMPRESSED_TEXTURE_FORMATS, GL_NUM_SHADER_BINARY_FORMATS,
        GL_PACK_ALIGNMENT, GL_POLYGON_OFFSET_FACTOR, GL_POLYGON_OFFSET_FILL,
        GL_POLYGON_OFFSET_UNITS, GL_RED_BITS, GL_RENDERBUFFER_BINDING, GL_SAMPLES,
        GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_BUFFERS, GL_SAMPLE_COVERAGE,
        GL_SAMPLE_COVERAGE_INVERT, GL_SAMPLE_COVERAGE_VALUE, GL_SCISSOR_BOX, GL_SCISSOR_TEST,
        GL_SHADER_BINARY_FORMATS, GL_SHADER_COMPILER, GL_STENCIL_BACK_FAIL, GL_STENCIL_BACK_FUNC,
        GL_STENCIL_BACK_PASS_DEPTH_FAIL, GL_STENCIL_BACK_PASS_DEPTH_PASS, GL_STENCIL_BACK_REF,
        GL_STENCIL_BACK_VALUE_MASK, GL_STENCIL_BACK_WRITEMASK, GL_STENCIL_BITS,
        GL_STENCIL_CLEAR_VALUE, GL_STENCIL_FAIL, GL_STENCIL_FUNC, GL_STENCIL_PASS_DEPTH_FAIL,
        GL_STENCIL_PASS_DEPTH_PASS, GL_STENCIL_REF, GL_STENCIL_TEST, GL_STENCIL_VALUE_MASK,
        GL_STENCIL_WRITEMASK, GL_SUBPIXEL_BITS, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_CUBE_MAP,
        GL_UNPACK_ALIGNMENT, GL_VIEWPORT: {
      // version 2.0
    }
    // TODO: GL_FRAMEBUFFER_BINDING seems to be removed in 3.0
    case GL_COPY_READ_BUFFER_BINDING, GL_COPY_WRITE_BUFFER_BINDING, GL_DRAW_BUFFER,
        GL_DRAW_FRAMEBUFFER_BINDING, GL_FRAGMENT_SHADER_DERIVATIVE_HINT, GL_MAJOR_VERSION,
        GL_MAX_3D_TEXTURE_SIZE, GL_MAX_ARRAY_TEXTURE_LAYERS, GL_MAX_COLOR_ATTACHMENTS,
        GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS, GL_MAX_COMBINED_UNIFORM_BLOCKS,
        GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS, GL_MAX_DRAW_BUFFERS, GL_MAX_ELEMENTS_INDICES,
        GL_MAX_ELEMENTS_VERTICES, GL_MAX_ELEMENT_INDEX, GL_MAX_FRAGMENT_INPUT_COMPONENTS,
        GL_MAX_FRAGMENT_UNIFORM_BLOCKS, GL_MAX_FRAGMENT_UNIFORM_COMPONENTS,
        GL_MAX_PROGRAM_TEXEL_OFFSET, GL_MAX_SAMPLES, GL_MAX_SERVER_WAIT_TIMEOUT,
        GL_MAX_TEXTURE_LOD_BIAS, GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
        GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
        GL_MAX_UNIFORM_BLOCK_SIZE, GL_MAX_UNIFORM_BUFFER_BINDINGS, GL_MAX_VARYING_COMPONENTS,
        GL_MAX_VERTEX_OUTPUT_COMPONENTS, GL_MAX_VERTEX_UNIFORM_BLOCKS,
        GL_MAX_VERTEX_UNIFORM_COMPONENTS, GL_MINOR_VERSION, GL_MIN_PROGRAM_TEXEL_OFFSET,
        GL_NUM_EXTENSIONS, GL_NUM_PROGRAM_BINARY_FORMATS, GL_PACK_ROW_LENGTH, GL_PACK_SKIP_PIXELS,
        GL_PACK_SKIP_ROWS, GL_PIXEL_PACK_BUFFER_BINDING, GL_PIXEL_UNPACK_BUFFER_BINDING,
        GL_PRIMITIVE_RESTART_FIXED_INDEX, GL_PROGRAM_BINARY_FORMATS, GL_RASTERIZER_DISCARD,
        GL_READ_BUFFER, GL_READ_FRAMEBUFFER_BINDING, GL_SAMPLER_BINDING,
        GL_TEXTURE_BINDING_2D_ARRAY, GL_TEXTURE_BINDING_3D, GL_TRANSFORM_FEEDBACK_ACTIVE,
        GL_TRANSFORM_FEEDBACK_BINDING, GL_TRANSFORM_FEEDBACK_BUFFER_BINDING,
        GL_TRANSFORM_FEEDBACK_BUFFER_SIZE, GL_TRANSFORM_FEEDBACK_BUFFER_START,
        GL_TRANSFORM_FEEDBACK_PAUSED, GL_UNIFORM_BUFFER_BINDING,
        GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, GL_UNIFORM_BUFFER_SIZE, GL_UNIFORM_BUFFER_START,
        GL_UNPACK_IMAGE_HEIGHT, GL_UNPACK_ROW_LENGTH, GL_UNPACK_SKIP_IMAGES, GL_UNPACK_SKIP_PIXELS,
        GL_UNPACK_SKIP_ROWS, GL_VERTEX_ARRAY_BINDING: {
      minRequiredVersion(3, 0)
    }
    // TODO: GL_FRAMEBUFFER_BINDING seems to be removed in 3.1
    case GL_DISPATCH_INDIRECT_BUFFER_BINDING, GL_IMAGE_BINDING_LAYERED,
        GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS, GL_MAX_COLOR_TEXTURE_SAMPLES,
        GL_MAX_COMBINED_ATOMIC_COUNTERS, GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS,
        GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS, GL_MAX_COMPUTE_ATOMIC_COUNTERS,
        GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS, GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS,
        GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS, GL_MAX_COMPUTE_UNIFORM_BLOCKS,
        GL_MAX_COMPUTE_UNIFORM_COMPONENTS, GL_MAX_COMPUTE_WORK_GROUP_COUNT,
        GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS, GL_MAX_COMPUTE_WORK_GROUP_SIZE,
        GL_MAX_FRAGMENT_ATOMIC_COUNTERS, GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS,
        GL_MAX_FRAMEBUFFER_HEIGHT, GL_MAX_FRAMEBUFFER_SAMPLES, GL_MAX_FRAMEBUFFER_WIDTH,
        GL_MAX_INTEGER_SAMPLES, GL_MAX_SAMPLE_MASK_WORDS, GL_MAX_SHADER_STORAGE_BLOCK_SIZE,
        GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS, GL_MAX_UNIFORM_LOCATIONS,
        GL_MAX_VERTEX_ATOMIC_COUNTERS, GL_MAX_VERTEX_ATTRIB_BINDINGS,
        GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET, GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS,
        GL_PROGRAM_PIPELINE_BINDING, GL_SHADER_STORAGE_BUFFER_BINDING,
        GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT, GL_SHADER_STORAGE_BUFFER_SIZE,
        GL_SHADER_STORAGE_BUFFER_START, GL_TEXTURE_BINDING_2D_MULTISAMPLE,
        GL_VERTEX_BINDING_DIVISOR, GL_VERTEX_BINDING_OFFSET, GL_VERTEX_BINDING_STRIDE: {
      minRequiredVersion(3, 1)
    }
    default: {
      glErrorInvalidEnum(param)
    }
  }

  v := values[0:stateVariableSize(param)]
  ctx := GetContext()
  switch (param) {
    case GL_ACTIVE_TEXTURE:
      v[0] = as!s32(ctx.ActiveTextureUnit)
    case GL_ARRAY_BUFFER_BINDING:
      v[0] = as!s32(ctx.BoundBuffers[GL_ARRAY_BUFFER])
    case GL_ELEMENT_ARRAY_BUFFER_BINDING:
      v[0] = as!s32(ctx.BoundBuffers[GL_ELEMENT_ARRAY_BUFFER])
    case GL_BLEND_SRC_ALPHA:
      v[0] = as!s32(ctx.Blending.SrcAlphaBlendFactor)
    case GL_BLEND_SRC_RGB:
      v[0] = as!s32(ctx.Blending.SrcRgbBlendFactor)
    case GL_BLEND_DST_ALPHA:
      v[0] = as!s32(ctx.Blending.DstAlphaBlendFactor)
    case GL_BLEND_DST_RGB:
      v[0] = as!s32(ctx.Blending.DstRgbBlendFactor)
    case GL_BLEND_EQUATION_RGB:
      v[0] = as!s32(ctx.Blending.BlendEquationRgb)
    case GL_BLEND_EQUATION_ALPHA:
      v[0] = as!s32(ctx.Blending.BlendEquationAlpha)
    case GL_BLEND_COLOR: {
      v[0] = as!s32(ctx.Blending.BlendColor.Red)
      v[1] = as!s32(ctx.Blending.BlendColor.Green)
      v[2] = as!s32(ctx.Blending.BlendColor.Blue)
      v[3] = as!s32(ctx.Blending.BlendColor.Alpha)
    }
    case GL_DEPTH_FUNC:
      v[0] = as!s32(ctx.Rasterizing.DepthTestFunction)
    case GL_DEPTH_CLEAR_VALUE:
      v[0] = as!s32(ctx.Clearing.ClearDepth)
    case GL_STENCIL_WRITEMASK:
      v[0] = as!s32(ctx.Rasterizing.StencilMask[GL_FRONT])
    case GL_STENCIL_BACK_WRITEMASK:
      v[0] = as!s32(ctx.Rasterizing.StencilMask[GL_BACK])
    case GL_VIEWPORT: {
      v[0] = ctx.Rasterizing.Viewport.X
      v[1] = ctx.Rasterizing.Viewport.Y
      v[2] = ctx.Rasterizing.Viewport.Width
      v[3] = ctx.Rasterizing.Viewport.Height
    }
    case GL_SCISSOR_BOX: {
      v[0] = ctx.Rasterizing.Scissor.X
      v[1] = ctx.Rasterizing.Scissor.Y
      v[2] = ctx.Rasterizing.Scissor.Width
      v[3] = ctx.Rasterizing.Scissor.Height
    }
    case GL_FRONT_FACE:
      v[0] = as!s32(ctx.Rasterizing.FrontFace)
    case GL_CULL_FACE_MODE:
      v[0] = as!s32(ctx.Rasterizing.CullFace)
    case GL_STENCIL_CLEAR_VALUE:
      v[0] = ctx.Clearing.ClearStencil
    case GL_FRAMEBUFFER_BINDING:
      v[0] = as!s32(ctx.BoundFramebuffers[GL_FRAMEBUFFER])
    case GL_READ_FRAMEBUFFER_BINDING:
      v[0] = as!s32(ctx.BoundFramebuffers[GL_READ_FRAMEBUFFER])
    case GL_RENDERBUFFER_BINDING:
      v[0] = as!s32(ctx.BoundRenderbuffers[GL_RENDERBUFFER])
    case GL_CURRENT_PROGRAM:
      v[0] = as!s32(ctx.BoundProgram)
    case GL_TEXTURE_BINDING_2D:
      v[0] = as!s32(ctx.TextureUnits[ctx.ActiveTextureUnit][GL_TEXTURE_2D])
    case GL_TEXTURE_BINDING_CUBE_MAP:
      v[0] = as!s32(ctx.TextureUnits[ctx.ActiveTextureUnit][GL_TEXTURE_CUBE_MAP])
    case GL_GENERATE_MIPMAP_HINT:
      v[0] = as!s32(ctx.GenerateMipmapHint)
    case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: {
      result := ?
      assert(result > 7)
      v[0] = result
    }
    case GL_MAX_CUBE_MAP_TEXTURE_SIZE: {
      result := ?
      assert(result > 15)
      v[0] = result
    }
    case GL_MAX_FRAGMENT_UNIFORM_VECTORS: {
      result := ?
      assert(result > 15)
      v[0] = result
    }
    case GL_MAX_RENDERBUFFER_SIZE: {
      result := ?
      assert(result > 0)
      v[0] = result
    }
    case GL_MAX_TEXTURE_IMAGE_UNITS: {
      result := ?
      assert(result > 7)
      v[0] = result
    }
    case GL_MAX_TEXTURE_SIZE: {
      result := ?
      assert(result > 63)
      v[0] = result
    }
    case GL_MAX_VARYING_VECTORS: {
      result := ?
      assert(result > 7)
      v[0] = result
    }
    case GL_MAX_VERTEX_ATTRIBS: {
      result := ?
      assert(result > 7)
      v[0] = result
    }
    case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
      v[0] = ?
    case GL_MAX_VERTEX_UNIFORM_VECTORS: {
      result := ?
      assert(result > 127)
      v[0] = result
    }
    case GL_MAX_VIEWPORT_DIMS: {
      max_width := ?
      max_height := ?
      assert(max_width > ctx.Rasterizing.Viewport.Width - 1)
      assert(max_height > ctx.Rasterizing.Viewport.Height - 1)
      v[0] = max_width
      v[1] = max_height
    }
    case GL_NUM_COMPRESSED_TEXTURE_FORMATS: {
      result := ?
      assert(result > -1)
      v[0] = result
    }
    case GL_NUM_SHADER_BINARY_FORMATS: {
      result := ?
      assert(result > -1)
      v[0] = result
    }
    case GL_PACK_ALIGNMENT:
      v[0] = ctx.PixelStorage[GL_PACK_ALIGNMENT]
    case GL_UNPACK_ALIGNMENT:
      v[0] = ctx.PixelStorage[GL_UNPACK_ALIGNMENT]
    case GL_ALPHA_BITS:
      v[0] = ?
    case GL_BLUE_BITS:
      v[0] = ?
    case GL_GREEN_BITS:
      v[0] = ?
    case GL_RED_BITS:
      v[0] = ?
    case GL_DEPTH_BITS:
      v[0] = ?
    case GL_SAMPLE_BUFFERS:
      v[0] = ?
    case GL_SAMPLES:
      v[0] = ?
    /*
      case GL_SHADER_BINARY_FORMATS:
        values = ?  // list of length GL_NUM_SHADER_BINARY_FORMATS
      case GL_COMPRESSED_TEXTURE_FORMATS:
        values = ?  // list of length GL_NUM_COMPRESSED_TEXTURE_FORMATS
      */
    case GL_STENCIL_BITS:
      v[0] = ?
    case GL_SUBPIXEL_BITS: {
      result := ?
      assert(result > 3)
      v[0] = result
    }
    case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
      v[0] = ?
    case GL_IMPLEMENTATION_COLOR_READ_TYPE:
      v[0] = ?
    case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT:
      v[0] = ?
    case GL_GPU_DISJOINT_EXT:
      v[0] = ?

  // TODO: implement the following which depend on:
  //   glStencilOp, glStencilOpSeparate, glStencilFuncSeparate.
  // GL_STENCIL_BACK_FAIL
  // GL_STENCIL_BACK_FUNC
  // GL_STENCIL_BACK_PASS_DEPTH_FAIL
  // GL_STENCIL_BACK_PASS_DEPTH_PASS
  // GL_STENCIL_BACK_REF
  // GL_STENCIL_BACK_VALUE_MASK
  // GL_STENCIL_FAIL
  // GL_STENCIL_FUNC
  // GL_STENCIL_PASS_DEPTH_FAIL
  // GL_STENCIL_PASS_DEPTH_PASS
  // GL_STENCIL_REF
  // GL_STENCIL_VALUE_MASK

  // TODO: all the values returned by glGetFloatv and glGetBooleanv can
  // be returned here with a type conversion: "_most_ floating-point values
  // are rounded to the nearest integer value".
  }
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGetInternalformativ.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGetInternalformativ.xhtml","OpenGL ES 3.1")
cmd void glGetInternalformativ(GLenum  target,
                               GLenum  internalformat,
                               GLenum  pname,
                               GLsizei bufSize,
                               GLint*  params) {
  minRequiredVersion(3, 0)
  switch (target) {
    case GL_RENDERBUFFER: {
      // version 3.0
    }
    case GL_TEXTURE_2D_MULTISAMPLE: {
      minRequiredVersion(3, 1)
    }
    default: {
      glErrorInvalidEnum(target)
    }
  }
  switch (internalformat) {
    case GL_DEPTH24_STENCIL8, GL_DEPTH32F_STENCIL8, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24,
        GL_DEPTH_COMPONENT32F, GL_R11F_G11F_B10F, GL_R16F, GL_R16I, GL_R16UI, GL_R32F, GL_R32I,
        GL_R32UI, GL_R8, GL_R8I, GL_R8UI, GL_R8_SNORM, GL_RG16F, GL_RG16I, GL_RG16UI, GL_RG32F,
        GL_RG32I, GL_RG32UI, GL_RG8, GL_RG8I, GL_RG8UI, GL_RG8_SNORM, GL_RGB10_A2, GL_RGB10_A2UI,
        GL_RGB16F, GL_RGB16I, GL_RGB16UI, GL_RGB32F, GL_RGB32I, GL_RGB32UI, GL_RGB565, GL_RGB5_A1,
        GL_RGB8, GL_RGB8I, GL_RGB8UI, GL_RGB8_SNORM, GL_RGB9_E5, GL_RGBA16F, GL_RGBA16I,
        GL_RGBA16UI, GL_RGBA32F, GL_RGBA32I, GL_RGBA32UI, GL_RGBA4, GL_RGBA8, GL_RGBA8I,
        GL_RGBA8UI, GL_RGBA8_SNORM, GL_SRGB8, GL_SRGB8_ALPHA8: {
      // version 3.0
    }
    default: {
      glErrorInvalidEnum(internalformat)
    }
  }
  switch (pname) {
    case GL_NUM_SAMPLE_COUNTS, GL_SAMPLES: {
      // version 3.0
    }
    default: {
      glErrorInvalidEnum(pname)
    }
  }
  // TODO
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man/xhtml/glGetString.xml","OpenGL ES 2.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGetString.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGetString.xhtml","OpenGL ES 3.1")
cmd const GLubyte* glGetString(GLenum param) {
  minRequiredVersion(2, 0)
  switch (param) {
    case GL_EXTENSIONS, GL_RENDERER, GL_SHADING_LANGUAGE_VERSION, GL_VENDOR, GL_VERSION: {
      // version 2.0
    }
    default: {
      glErrorInvalidEnum(param)
    }
  }

  return null
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glGetString.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glGetString.xhtml","OpenGL ES 3.1")
cmd const GLubyte* glGetStringi(GLenum name, GLuint index) {
  minRequiredVersion(3, 0)
  switch (name) {
    case GL_EXTENSIONS: {
      // version 3.0
    }
    default: {
      glErrorInvalidEnum(name)
    }
  }
  // TODO
  return ?
}

@Doc("https://www.khronos.org/opengles/sdk/docs/man/xhtml/glIsEnabled.xml","OpenGL ES 2.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man3/html/glIsEnabled.xhtml","OpenGL ES 3.0")
@Doc("https://www.khronos.org/opengles/sdk/docs/man31/html/glIsEnabled.xhtml","OpenGL ES 3.1")
cmd bool glIsEnabled(GLenum capability) {
  minRequiredVersion(2, 0)
  switch (capability) {
    case GL_BLEND, GL_CULL_FACE, GL_DEPTH_TEST, GL_DITHER, GL_POLYGON_OFFSET_FILL,
        GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_COVERAGE, GL_SCISSOR_TEST, GL_STENCIL_TEST: {
      // version 2.0
    }
    case GL_PRIMITIVE_RESTART_FIXED_INDEX, GL_RASTERIZER_DISCARD: {
      minRequiredVersion(3, 0)
    }
    default: {
      glErrorInvalidEnum(capability)
    }
  }

  ctx := GetContext()
  return ctx.Capabilities[capability]
}