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Previous resource deleted when gl context is lost

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This commit is contained in:
Felipe Alfonso 2017-09-13 16:11:40 -03:00
parent 56bc4d1547
commit a4e33f111b
2 changed files with 30 additions and 4 deletions
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2
v3/src/renderer/webgl/ResourceManager.js
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@ -220,7 +220,7 @@ var ResourceManager = new Class({
if (storedShader !== undefined)
{
delete this.shaderCache;
delete this.shaderCache[shader.name];
}
gl.deleteShader(shader.vertexShader);

32
v3/src/renderer/webgl/WebGLRenderer.js
View file

@ -27,12 +27,30 @@ var WebGLRenderer = new Class({
function WebGLRenderer (game)
{
var _this = this;
this.game = game;
this.type = CONST.WEBGL;
this.width = game.config.width * game.config.resolution;
this.height = game.config.height * game.config.resolution;
this.resolution = game.config.resolution;
this.view = game.canvas;
this.view.addEventListener('webglcontextlost', function (evt) {
var renderers = _this.rendererArray;
for (var index = 0; index < renderers.length; ++index)
{
renderers[index].destroy();
}
_this.contextLost = true;
evt.preventDefault();
}, false);
this.view.addEventListener('webglcontextrestored', function (evt) {
_this.rendererArray.length = 0;
_this.resourceManager.shaderCache = {};
_this.resourceManager.shaderCount = 0;
_this.contextLost = false;
_this.init();
}, false);
// All of these settings will be able to be controlled via the Game Config
this.config = {
@ -91,8 +109,10 @@ var WebGLRenderer = new Class({
this.contextLost = true;
throw new Error('This browser does not support WebGL. Try using the Canvas renderer.');
}
var gl = this.gl;
this.lostContext = this.getExtension('WEBGL_lose_context');
var color = this.game.config.backgroundColor;
this.resourceManager = new ResourceManager(gl);
@ -326,14 +346,13 @@ var WebGLRenderer = new Class({
// Call at the start of the render loop
preRender: function ()
{
this.setRenderTarget(null);
// No point rendering if our context has been blown up!
if (this.contextLost)
{
return;
}
this.setRenderTarget(null);
// Add Pre-render hook
var gl = this.gl;
@ -358,6 +377,7 @@ var WebGLRenderer = new Class({
*/
render: function (scene, children, interpolationPercentage, camera)
{
if (this.contextLost) return;
var gl = this.gl;
var quadBatch = this.quadBatch;
@ -479,6 +499,8 @@ var WebGLRenderer = new Class({
// Called at the end of the render loop (tidy things up, etc)
postRender: function ()
{
if (this.contextLost) return;
this.currentRenderer.flush();
if (this.snapshotCallback)
@ -612,6 +634,10 @@ var WebGLRenderer = new Class({
destroy: function ()
{
if (this.lostContext)
{
this.lostContext.loseContext();
}
this.gl = null;
}