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
79 lines (78 loc) • 2.6 kB
JavaScript
import { Mesh2D } from "./Mesh2D";
export class MeshQuadTexture extends Mesh2D {
static __int__() {
MeshQuadTexture._fixattriInfo = [5126 , 4, 0,
5121 , 4, 16,
5121 , 4, 20];
}
constructor() {
super(MeshQuadTexture.const_stride, 4, 4);
this.canReuse = true;
this.setAttributes(MeshQuadTexture._fixattriInfo);
if (!MeshQuadTexture._fixib) {
this.createQuadIB(MeshQuadTexture._maxIB);
MeshQuadTexture._fixib = this._ib;
}
else {
this._ib = MeshQuadTexture._fixib;
this._quadNum = MeshQuadTexture._maxIB;
}
}
static getAMesh(mainctx) {
var ret = null;
if (MeshQuadTexture._POOL.length) {
ret = MeshQuadTexture._POOL.pop();
}
else
ret = new MeshQuadTexture();
mainctx && ret._vb._resizeBuffer(64 * 1024 * MeshQuadTexture.const_stride, false);
return ret;
}
releaseMesh() {
this._vb.setByteLength(0);
this.vertNum = 0;
this.indexNum = 0;
MeshQuadTexture._POOL.push(this);
}
destroy() {
this._vb.destroy();
this._vb.deleteBuffer();
}
addQuad(pos, uv, color, useTex) {
var vb = this._vb;
var vpos = (vb._byteLength >> 2);
vb.setByteLength((vpos + MeshQuadTexture.const_stride) << 2);
var vbdata = vb._floatArray32 || vb.getFloat32Array();
var vbu32Arr = vb._uint32Array;
var cpos = vpos;
var useTexVal = useTex ? 0xff : 0;
vbdata[cpos++] = pos[0];
vbdata[cpos++] = pos[1];
vbdata[cpos++] = uv[0];
vbdata[cpos++] = uv[1];
vbu32Arr[cpos++] = color;
vbu32Arr[cpos++] = useTexVal;
vbdata[cpos++] = pos[2];
vbdata[cpos++] = pos[3];
vbdata[cpos++] = uv[2];
vbdata[cpos++] = uv[3];
vbu32Arr[cpos++] = color;
vbu32Arr[cpos++] = useTexVal;
vbdata[cpos++] = pos[4];
vbdata[cpos++] = pos[5];
vbdata[cpos++] = uv[4];
vbdata[cpos++] = uv[5];
vbu32Arr[cpos++] = color;
vbu32Arr[cpos++] = useTexVal;
vbdata[cpos++] = pos[6];
vbdata[cpos++] = pos[7];
vbdata[cpos++] = uv[6];
vbdata[cpos++] = uv[7];
vbu32Arr[cpos++] = color;
vbu32Arr[cpos++] = useTexVal;
vb._upload = true;
}
}
MeshQuadTexture.const_stride = 24;
MeshQuadTexture._maxIB = 16 * 1024;
MeshQuadTexture._POOL = [];