// loaders.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors

import {GL_EXTENSIONS_CONSTANTS} from '../gl-extensions';

const VULKAN_TO_WEBGL_FORMAT_MAP: Record<number, number> = {
  131: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB_S3TC_DXT1_EXT,
  132: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB_S3TC_DXT1_EXT,
  133: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT1_EXT,
  134: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT,
  135: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT3_EXT,
  136: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT,
  137: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_S3TC_DXT5_EXT,
  138: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT,
  139: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RED_RGTC1_EXT,
  140: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SIGNED_RED_RGTC1_EXT,
  141: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RED_GREEN_RGTC2_EXT,
  142: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT,
  147: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB8_ETC2,
  148: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ETC2,
  149: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2,
  150: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2,
  151: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA8_ETC2_EAC,
  152: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC,
  153: GL_EXTENSIONS_CONSTANTS.COMPRESSED_R11_EAC,
  154: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SIGNED_R11_EAC,
  155: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RG11_EAC,
  156: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SIGNED_RG11_EAC,
  // @ts-ignore
  157: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_4x4_KHR,
  // @ts-ignore
  158: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR,
  // @ts-ignore
  159: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5x4_KHR,
  // @ts-ignore
  160: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_5X4_KHR,
  // @ts-ignore
  161: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5x5_KHR,
  // @ts-ignore
  162: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR,
  // @ts-ignore
  163: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6x5_KHR,
  // @ts-ignore
  164: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR,
  // @ts-ignore
  165: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6x6_KHR,
  // @ts-ignore
  166: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR,
  // @ts-ignore
  167: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x5_KHR,
  // @ts-ignore
  168: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR,
  // @ts-ignore
  169: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x6_KHR,
  // @ts-ignore
  170: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR,
  // @ts-ignore
  171: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x8_KHR,
  // @ts-ignore
  172: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR,
  // @ts-ignore
  173: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x5_KHR,
  // @ts-ignore
  174: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR,
  // @ts-ignore
  175: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x6_KHR,
  // @ts-ignore
  176: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR,
  // @ts-ignore
  177: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x8_KHR,
  // @ts-ignore
  178: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR,
  // @ts-ignore
  179: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x10_KHR,
  // @ts-ignore
  180: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR,
  // @ts-ignore
  181: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12x10_KHR,
  // @ts-ignore
  182: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR,
  // @ts-ignore
  183: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12x12_KHR,
  // @ts-ignore
  184: GL_EXTENSIONS_CONSTANTS.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR,
  1000054000: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG,
  1000054001: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG,
  // @ts-ignore
  1000066000: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_4x4_KHR,
  // @ts-ignore
  1000066001: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5x4_KHR,
  // @ts-ignore
  1000066002: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_5x5_KHR,
  // @ts-ignore
  1000066003: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6x5_KHR,
  // @ts-ignore
  1000066004: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_6x6_KHR,
  // @ts-ignore
  1000066005: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x5_KHR,
  // @ts-ignore
  1000066006: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x6_KHR,
  // @ts-ignore
  1000066007: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_8x8_KHR,
  // @ts-ignore
  1000066008: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x5_KHR,
  // @ts-ignore
  1000066009: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x6_KHR,
  // @ts-ignore
  1000066010: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x8_KHR,
  // @ts-ignore
  1000066011: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_10x10_KHR,
  // @ts-ignore
  1000066012: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12x10_KHR,
  // @ts-ignore
  1000066013: GL_EXTENSIONS_CONSTANTS.COMPRESSED_RGBA_ASTC_12x12_KHR
};

/**
 * Returns WebGl format based on Vulkan format
 * Vulkan to WebGl format mapping provided here http://github.khronos.org/KTX-Specification/#formatMapping
 * Vulkan name to format number mapping provided here: https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/VkFormat.html
 * @param vkFormat
 * @returns WebGL / OpenGL constant
 */
export function mapVkFormatToWebGL(vkFormat: number): number {
  return VULKAN_TO_WEBGL_FORMAT_MAP[vkFormat];
}