@openhps/core
Version:
Open Hybrid Positioning System - Core component
54 lines (53 loc) • 2.04 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.WebGLExtensions = WebGLExtensions;
var _utils = require("../../utils.js");
function WebGLExtensions(gl) {
const extensions = {};
function getExtension(name) {
if (extensions[name] !== undefined) {
return extensions[name];
}
let extension;
switch (name) {
case 'WEBGL_depth_texture':
extension = gl.getExtension('WEBGL_depth_texture') || gl.getExtension('MOZ_WEBGL_depth_texture') || gl.getExtension('WEBKIT_WEBGL_depth_texture');
break;
case 'EXT_texture_filter_anisotropic':
extension = gl.getExtension('EXT_texture_filter_anisotropic') || gl.getExtension('MOZ_EXT_texture_filter_anisotropic') || gl.getExtension('WEBKIT_EXT_texture_filter_anisotropic');
break;
case 'WEBGL_compressed_texture_s3tc':
extension = gl.getExtension('WEBGL_compressed_texture_s3tc') || gl.getExtension('MOZ_WEBGL_compressed_texture_s3tc') || gl.getExtension('WEBKIT_WEBGL_compressed_texture_s3tc');
break;
case 'WEBGL_compressed_texture_pvrtc':
extension = gl.getExtension('WEBGL_compressed_texture_pvrtc') || gl.getExtension('WEBKIT_WEBGL_compressed_texture_pvrtc');
break;
default:
extension = gl.getExtension(name);
}
extensions[name] = extension;
return extension;
}
return {
has: function (name) {
return getExtension(name) !== null;
},
init: function () {
getExtension('EXT_color_buffer_float');
getExtension('WEBGL_clip_cull_distance');
getExtension('OES_texture_float_linear');
getExtension('EXT_color_buffer_half_float');
getExtension('WEBGL_multisampled_render_to_texture');
getExtension('WEBGL_render_shared_exponent');
},
get: function (name) {
const extension = getExtension(name);
if (extension === null) {
(0, _utils.warnOnce)('THREE.WebGLRenderer: ' + name + ' extension not supported.');
}
return extension;
}
};
}