laya-coreui-es
Version:
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
88 lines (87 loc) • 2.8 kB
JavaScript
import { LayaGL } from "../../layagl/LayaGL";
import { Mesh2D } from "./Mesh2D";
export class MeshTexture extends Mesh2D {
static __init__() {
var gl = LayaGL.instance;
MeshTexture._fixattriInfo = [5126 , 4, 0,
5121 , 4, 16,
5121 , 4, 20];
}
constructor() {
super(MeshTexture.const_stride, 4, 4);
this.canReuse = true;
this.setAttributes(MeshTexture._fixattriInfo);
}
static getAMesh(mainctx) {
var ret;
if (MeshTexture._POOL.length) {
ret = MeshTexture._POOL.pop();
}
else
ret = new MeshTexture();
mainctx && ret._vb._resizeBuffer(64 * 1024 * MeshTexture.const_stride, false);
return ret;
}
addData(vertices, uvs, idx, matrix, rgba) {
var vb = this._vb;
var ib = this._ib;
var vertsz = vertices.length >> 1;
var startpos = vb.needSize(vertsz * MeshTexture.const_stride);
var f32pos = startpos >> 2;
var vbdata = vb._floatArray32 || vb.getFloat32Array();
var vbu32Arr = vb._uint32Array;
var ci = 0;
var m00 = matrix.a;
var m01 = matrix.b;
var m10 = matrix.c;
var m11 = matrix.d;
var tx = matrix.tx;
var ty = matrix.ty;
var i = 0;
for (i = 0; i < vertsz; i++) {
var x = vertices[ci], y = vertices[ci + 1];
vbdata[f32pos] = x * m00 + y * m10 + tx;
vbdata[f32pos + 1] = x * m01 + y * m11 + ty;
vbdata[f32pos + 2] = uvs[ci];
vbdata[f32pos + 3] = uvs[ci + 1];
vbu32Arr[f32pos + 4] = rgba;
vbu32Arr[f32pos + 5] = 0xff;
f32pos += 6;
ci += 2;
}
vb.setNeedUpload();
var vertN = this.vertNum;
var sz = idx.length;
var stib = ib.needSize(idx.byteLength);
var cidx = ib.getUint16Array();
var stibid = stib >> 1;
if (vertN > 0) {
var end = stibid + sz;
var si = 0;
for (i = stibid; i < end; i++, si++) {
cidx[i] = idx[si] + vertN;
}
}
else {
cidx.set(idx, stibid);
}
ib.setNeedUpload();
this.vertNum += vertsz;
this.indexNum += idx.length;
}
releaseMesh() {
this._vb.setByteLength(0);
this._ib.setByteLength(0);
this.vertNum = 0;
this.indexNum = 0;
MeshTexture._POOL.push(this);
}
destroy() {
this._ib.destroy();
this._vb.destroy();
this._ib.disposeResource();
this._vb.deleteBuffer();
}
}
MeshTexture.const_stride = 24;
MeshTexture._POOL = [];