RenderableGeometry.js

var Buffer, Context, Geometry, RenderableGeometry, indexTypes;

Geometry = require('pex-geom').Geometry;

Context = require('./Context');

Buffer = require('./Buffer');

indexTypes = ['faces', 'edges', 'indices'];

RenderableGeometry = {
  compile: function() {
    var attrib, attribName, indexName, usage, _i, _len, _ref, _results;
    if (this.gl == null) {
      this.gl = Context.currentContext;
    }
    _ref = this.attribs;
    for (attribName in _ref) {
      attrib = _ref[attribName];
      if (!attrib.buffer) {
        usage = attrib.dynamic ? this.gl.DYNAMIC_DRAW : this.gl.STATIC_DRAW;
        attrib.buffer = new Buffer(this.gl.ARRAY_BUFFER, Float32Array, null, usage);
        attrib.dirty = true;
      }
      if (attrib.dirty) {
        attrib.buffer.update(attrib);
        attrib.dirty = false;
      }
    }
    _results = [];
    for (_i = 0, _len = indexTypes.length; _i < _len; _i++) {
      indexName = indexTypes[_i];
      if (this[indexName]) {
        if (!this[indexName].buffer) {
          usage = this[indexName].dynamic ? this.gl.DYNAMIC_DRAW : this.gl.STATIC_DRAW;
          this[indexName].buffer = new Buffer(this.gl.ELEMENT_ARRAY_BUFFER, Uint16Array, null, usage);
          this[indexName].dirty = true;
        }
        if (this[indexName].dirty) {
          this[indexName].buffer.update(this[indexName]);
          _results.push(this[indexName].dirty = false);
        } else {
          _results.push(void 0);
        }
      } else {
        _results.push(void 0);
      }
    }
    return _results;
  },
  dispose: function() {
    var attrib, attribName, indexName, _i, _len, _ref, _results;
    _ref = this.attribs;
    for (attribName in _ref) {
      attrib = _ref[attribName];
      if (attrib && attrib.buffer) {
        attrib.buffer.dispose();
      }
    }
    _results = [];
    for (_i = 0, _len = indexTypes.length; _i < _len; _i++) {
      indexName = indexTypes[_i];
      if (this[indexName] && this[indexName].buffer) {
        _results.push(this[indexName].buffer.dispose());
      } else {
        _results.push(void 0);
      }
    }
    return _results;
  }
};

module.exports = RenderableGeometry;