laya-coreui-es/build/lib/layaAir/laya/webgl/BufferStateBase.js

laya核心库、ui库es版本，剔除了媒体、TTF等功能。基于 LayaAir-release_2.12.0 修改

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.BufferStateBase = void 0;
const LayaGL_1 = require("../layagl/LayaGL");
class BufferStateBase {
    constructor() {
        this._nativeVertexArrayObject = LayaGL_1.LayaGL.layaGPUInstance.createVertexArray();
    }
    bind() {
        if (BufferStateBase._curBindedBufferState !== this) {
            LayaGL_1.LayaGL.layaGPUInstance.bindVertexArray(this._nativeVertexArrayObject);
            BufferStateBase._curBindedBufferState = this;
        }
    }
    unBind() {
        if (BufferStateBase._curBindedBufferState === this) {
            LayaGL_1.LayaGL.layaGPUInstance.bindVertexArray(null);
            BufferStateBase._curBindedBufferState = null;
        }
        else {
            throw "BufferState: must call bind() function first.";
        }
    }
    destroy() {
        LayaGL_1.LayaGL.layaGPUInstance.deleteVertexArray(this._nativeVertexArrayObject);
    }
    bindForNative() {
        LayaGL_1.LayaGL.instance.bindVertexArray(this._nativeVertexArrayObject);
        BufferStateBase._curBindedBufferState = this;
    }
    unBindForNative() {
        LayaGL_1.LayaGL.instance.bindVertexArray(null);
        BufferStateBase._curBindedBufferState = null;
    }
}
exports.BufferStateBase = BufferStateBase;