playcanvas
Version:
Open-source WebGL/WebGPU 3D engine for the web
24 lines (23 loc) • 738 B
JavaScript
import { INDEXFORMAT_UINT8, INDEXFORMAT_UINT16, INDEXFORMAT_UINT32 } from "../constants.js";
import { WebglBuffer } from "./webgl-buffer.js";
class WebglIndexBuffer extends WebglBuffer {
constructor(indexBuffer) {
super();
const gl = indexBuffer.device.gl;
const format = indexBuffer.format;
if (format === INDEXFORMAT_UINT8) {
this.glFormat = gl.UNSIGNED_BYTE;
} else if (format === INDEXFORMAT_UINT16) {
this.glFormat = gl.UNSIGNED_SHORT;
} else if (format === INDEXFORMAT_UINT32) {
this.glFormat = gl.UNSIGNED_INT;
}
}
unlock(indexBuffer) {
const device = indexBuffer.device;
super.unlock(device, indexBuffer.usage, device.gl.ELEMENT_ARRAY_BUFFER, indexBuffer.storage);
}
}
export {
WebglIndexBuffer
};