@openhps/core
Version:
Open Hybrid Positioning System - Core component
154 lines (135 loc) • 9.88 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.WebGLUtils = WebGLUtils;
var _constants = require("../../constants.js");
var _ColorManagement = require("../../math/ColorManagement.js");
function WebGLUtils(gl, extensions) {
function convert(p, colorSpace = _constants.NoColorSpace) {
let extension;
const transfer = _ColorManagement.ColorManagement.getTransfer(colorSpace);
if (p === _constants.UnsignedByteType) return gl.UNSIGNED_BYTE;
if (p === _constants.UnsignedShort4444Type) return gl.UNSIGNED_SHORT_4_4_4_4;
if (p === _constants.UnsignedShort5551Type) return gl.UNSIGNED_SHORT_5_5_5_1;
if (p === _constants.UnsignedInt5999Type) return gl.UNSIGNED_INT_5_9_9_9_REV;
if (p === _constants.ByteType) return gl.BYTE;
if (p === _constants.ShortType) return gl.SHORT;
if (p === _constants.UnsignedShortType) return gl.UNSIGNED_SHORT;
if (p === _constants.IntType) return gl.INT;
if (p === _constants.UnsignedIntType) return gl.UNSIGNED_INT;
if (p === _constants.FloatType) return gl.FLOAT;
if (p === _constants.HalfFloatType) return gl.HALF_FLOAT;
if (p === _constants.AlphaFormat) return gl.ALPHA;
if (p === _constants.RGBFormat) return gl.RGB;
if (p === _constants.RGBAFormat) return gl.RGBA;
if (p === _constants.LuminanceFormat) return gl.LUMINANCE;
if (p === _constants.LuminanceAlphaFormat) return gl.LUMINANCE_ALPHA;
if (p === _constants.DepthFormat) return gl.DEPTH_COMPONENT;
if (p === _constants.DepthStencilFormat) return gl.DEPTH_STENCIL;
// WebGL2 formats.
if (p === _constants.RedFormat) return gl.RED;
if (p === _constants.RedIntegerFormat) return gl.RED_INTEGER;
if (p === _constants.RGFormat) return gl.RG;
if (p === _constants.RGIntegerFormat) return gl.RG_INTEGER;
if (p === _constants.RGBAIntegerFormat) return gl.RGBA_INTEGER;
// S3TC
if (p === _constants.RGB_S3TC_DXT1_Format || p === _constants.RGBA_S3TC_DXT1_Format || p === _constants.RGBA_S3TC_DXT3_Format || p === _constants.RGBA_S3TC_DXT5_Format) {
if (transfer === _constants.SRGBTransfer) {
extension = extensions.get('WEBGL_compressed_texture_s3tc_srgb');
if (extension !== null) {
if (p === _constants.RGB_S3TC_DXT1_Format) return extension.COMPRESSED_SRGB_S3TC_DXT1_EXT;
if (p === _constants.RGBA_S3TC_DXT1_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
if (p === _constants.RGBA_S3TC_DXT3_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
if (p === _constants.RGBA_S3TC_DXT5_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
} else {
return null;
}
} else {
extension = extensions.get('WEBGL_compressed_texture_s3tc');
if (extension !== null) {
if (p === _constants.RGB_S3TC_DXT1_Format) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
if (p === _constants.RGBA_S3TC_DXT1_Format) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
if (p === _constants.RGBA_S3TC_DXT3_Format) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
if (p === _constants.RGBA_S3TC_DXT5_Format) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
} else {
return null;
}
}
}
// PVRTC
if (p === _constants.RGB_PVRTC_4BPPV1_Format || p === _constants.RGB_PVRTC_2BPPV1_Format || p === _constants.RGBA_PVRTC_4BPPV1_Format || p === _constants.RGBA_PVRTC_2BPPV1_Format) {
extension = extensions.get('WEBGL_compressed_texture_pvrtc');
if (extension !== null) {
if (p === _constants.RGB_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
if (p === _constants.RGB_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
if (p === _constants.RGBA_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
if (p === _constants.RGBA_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
} else {
return null;
}
}
// ETC
if (p === _constants.RGB_ETC1_Format || p === _constants.RGB_ETC2_Format || p === _constants.RGBA_ETC2_EAC_Format) {
extension = extensions.get('WEBGL_compressed_texture_etc');
if (extension !== null) {
if (p === _constants.RGB_ETC1_Format || p === _constants.RGB_ETC2_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ETC2 : extension.COMPRESSED_RGB8_ETC2;
if (p === _constants.RGBA_ETC2_EAC_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC : extension.COMPRESSED_RGBA8_ETC2_EAC;
} else {
return null;
}
}
// ASTC
if (p === _constants.RGBA_ASTC_4x4_Format || p === _constants.RGBA_ASTC_5x4_Format || p === _constants.RGBA_ASTC_5x5_Format || p === _constants.RGBA_ASTC_6x5_Format || p === _constants.RGBA_ASTC_6x6_Format || p === _constants.RGBA_ASTC_8x5_Format || p === _constants.RGBA_ASTC_8x6_Format || p === _constants.RGBA_ASTC_8x8_Format || p === _constants.RGBA_ASTC_10x5_Format || p === _constants.RGBA_ASTC_10x6_Format || p === _constants.RGBA_ASTC_10x8_Format || p === _constants.RGBA_ASTC_10x10_Format || p === _constants.RGBA_ASTC_12x10_Format || p === _constants.RGBA_ASTC_12x12_Format) {
extension = extensions.get('WEBGL_compressed_texture_astc');
if (extension !== null) {
if (p === _constants.RGBA_ASTC_4x4_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR : extension.COMPRESSED_RGBA_ASTC_4x4_KHR;
if (p === _constants.RGBA_ASTC_5x4_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR : extension.COMPRESSED_RGBA_ASTC_5x4_KHR;
if (p === _constants.RGBA_ASTC_5x5_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR : extension.COMPRESSED_RGBA_ASTC_5x5_KHR;
if (p === _constants.RGBA_ASTC_6x5_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR : extension.COMPRESSED_RGBA_ASTC_6x5_KHR;
if (p === _constants.RGBA_ASTC_6x6_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR : extension.COMPRESSED_RGBA_ASTC_6x6_KHR;
if (p === _constants.RGBA_ASTC_8x5_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR : extension.COMPRESSED_RGBA_ASTC_8x5_KHR;
if (p === _constants.RGBA_ASTC_8x6_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR : extension.COMPRESSED_RGBA_ASTC_8x6_KHR;
if (p === _constants.RGBA_ASTC_8x8_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR : extension.COMPRESSED_RGBA_ASTC_8x8_KHR;
if (p === _constants.RGBA_ASTC_10x5_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR : extension.COMPRESSED_RGBA_ASTC_10x5_KHR;
if (p === _constants.RGBA_ASTC_10x6_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR : extension.COMPRESSED_RGBA_ASTC_10x6_KHR;
if (p === _constants.RGBA_ASTC_10x8_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR : extension.COMPRESSED_RGBA_ASTC_10x8_KHR;
if (p === _constants.RGBA_ASTC_10x10_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR : extension.COMPRESSED_RGBA_ASTC_10x10_KHR;
if (p === _constants.RGBA_ASTC_12x10_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR : extension.COMPRESSED_RGBA_ASTC_12x10_KHR;
if (p === _constants.RGBA_ASTC_12x12_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR : extension.COMPRESSED_RGBA_ASTC_12x12_KHR;
} else {
return null;
}
}
// BPTC
if (p === _constants.RGBA_BPTC_Format || p === _constants.RGB_BPTC_SIGNED_Format || p === _constants.RGB_BPTC_UNSIGNED_Format) {
extension = extensions.get('EXT_texture_compression_bptc');
if (extension !== null) {
if (p === _constants.RGBA_BPTC_Format) return transfer === _constants.SRGBTransfer ? extension.COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT : extension.COMPRESSED_RGBA_BPTC_UNORM_EXT;
if (p === _constants.RGB_BPTC_SIGNED_Format) return extension.COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT;
if (p === _constants.RGB_BPTC_UNSIGNED_Format) return extension.COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT;
} else {
return null;
}
}
// RGTC
if (p === _constants.RED_RGTC1_Format || p === _constants.SIGNED_RED_RGTC1_Format || p === _constants.RED_GREEN_RGTC2_Format || p === _constants.SIGNED_RED_GREEN_RGTC2_Format) {
extension = extensions.get('EXT_texture_compression_rgtc');
if (extension !== null) {
if (p === _constants.RGBA_BPTC_Format) return extension.COMPRESSED_RED_RGTC1_EXT;
if (p === _constants.SIGNED_RED_RGTC1_Format) return extension.COMPRESSED_SIGNED_RED_RGTC1_EXT;
if (p === _constants.RED_GREEN_RGTC2_Format) return extension.COMPRESSED_RED_GREEN_RGTC2_EXT;
if (p === _constants.SIGNED_RED_GREEN_RGTC2_Format) return extension.COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT;
} else {
return null;
}
}
//
if (p === _constants.UnsignedInt248Type) return gl.UNSIGNED_INT_24_8;
// if "p" can't be resolved, assume the user defines a WebGL constant as a string (fallback/workaround for packed RGB formats)
return gl[p] !== undefined ? gl[p] : null;
}
return {
convert: convert
};
}