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/*
* Copyright 2010, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* A DrawList gets used during rendering to collect DrawElements to
* render. Each Material references a DrawList. Depending on the material, as
* DrawElements get collected they will be put on different DrawLists.
* @constructor
*/
o3d.DrawList = function() {
o3d.NamedObject.call(this);
this.list_ = [];
};
o3d.inherit('DrawList', 'NamedObject');
/**
* Private list to actually hold the DrawElements
* @type {!Array.<!Object>}
*/
this.list_ = [];
/**
* @type {number}
*/
o3d.DrawList.SortMethod = goog.typedef;
/**
* SortMethod,
* BY_PERFORMANCE
* BY_Z_ORDER
* BY_PRIORITY
*
* Method to sort DrawList by.
*/
o3d.DrawList.BY_PERFORMANCE = 0;
o3d.DrawList.BY_Z_ORDER = 1;
o3d.DrawList.BY_PRIORITY = 2;
/**
* Renders the draw list.
*/
o3d.DrawList.prototype.render = function() {
// TODO(petersont): Add sort.
for (var i = 0; i < this.list_.length; ++i) {
var drawElementInfo = this.list_[i];
var world = drawElementInfo.world;
var view = drawElementInfo.view;
var projection = drawElementInfo.projection;
var transform = drawElementInfo.transform;
var drawElement = drawElementInfo.drawElement;
var element = drawElementInfo.drawElement.owner;
var material = drawElementInfo.drawElement.material ||
drawElementInfo.drawElement.owner.material;
var effect = material.effect;
o3d.Param.SAS.setWorld(world);
o3d.Param.SAS.setView(view);
o3d.Param.SAS.setProjection(projection);
var paramObjects = [
transform,
drawElement,
element,
material,
effect,
o3d.Param.SAS
];
material.effect.searchForParams_(paramObjects);
element.render();
}
};
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