glam/es5/tests/renderer/shader-cache-test.js

Experimental WebGL Engine

'use strict';

var _tape = require('tape');

var _tape2 = _interopRequireDefault(_tape);

var _lib = require('../../lib');

var _shaderCache = require('../../lib/renderer/shader-cache');

var _shaderCache2 = _interopRequireDefault(_shaderCache);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

(0, _tape2.default)("Shader Cache", function (t) {

	t.plan(7);
	var renderer = (0, _lib.ForwardRenderer)({
		autoAddCanvas: false
	});
	var cache = (0, _shaderCache2.default)();
	var meshA = (0, _lib.Mesh)((0, _lib.Geometry)(), (0, _lib.FlatMaterial)());
	var meshB = (0, _lib.Mesh)((0, _lib.Geometry)(), (0, _lib.FlatMaterial)());

	var shaderA = cache.getOrCreate(renderer.gl, meshA, "");
	var shaderB = cache.getOrCreate(renderer.gl, meshB, "");

	var shaderA2 = cache.getOrCreate(renderer.gl, meshA, "");
	var shaderB2 = cache.getOrCreate(renderer.gl, meshB, "");

	t.equal(shaderA, shaderB, "Caches the shader across meshes");
	t.equal(shaderA, shaderA2, "Caches the shader across time");
	t.equal(shaderB, shaderB2, "Caches the shader across time");

	cache.clearMeshes();

	var shaderA3 = cache.getOrCreate(renderer.gl, meshA, "");

	t.equal(shaderA, shaderA3, "Cache retains the copy after clearMeshes");
	t.equal(shaderB, shaderA3, "Cache retains the copy after clearMeshes");

	cache.clearMeshes();
	cache.clearUnused();

	var shaderA4 = cache.getOrCreate(renderer.gl, meshA, "");

	t.notEqual(shaderA, shaderA4, "Does not retain cache if no meshes used it previously");
	t.notEqual(shaderB, shaderA4, "Does not retain cache if no meshes used it previously");

	renderer.destroy();
});