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Use OES_element_index_uint when available

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Éric Lemoine
2014-11-20 13:40:23 +01:00
parent c564a0963c
commit 2f7c97f25a
3 changed files with 48 additions and 10 deletions
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14
src/ol/webgl/context.js
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@@ -1,9 +1,11 @@
goog.provide('ol.webgl.Context');
goog.require('goog.array');
goog.require('goog.asserts');
goog.require('goog.events');
goog.require('goog.log');
goog.require('goog.object');
goog.require('ol.has');
goog.require('ol.structs.Buffer');
goog.require('ol.structs.IntegerSet');
goog.require('ol.webgl.WebGLContextEventType');
@@ -66,6 +68,18 @@ ol.webgl.Context = function(canvas, gl) {
*/
this.currentProgram_ = null;
/**
* @type {boolean}
*/
this.hasOESElementIndexUint = goog.array.contains(
ol.has.WEBGL_EXTENSIONS, 'OES_element_index_uint');
// use the OES_element_index_uint extension if available
if (this.hasOESElementIndexUint) {
var ext = gl.getExtension('OES_element_index_uint');
goog.asserts.assert(!goog.isNull(ext));
}
goog.events.listen(this.canvas_, ol.webgl.WebGLContextEventType.LOST,
this.handleWebGLContextLost, false, this);
goog.events.listen(this.canvas_, ol.webgl.WebGLContextEventType.RESTORED,