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WebGLBlendModeManager.js
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WebGLBlendModeManager.js
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/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* @class PIXI.WebGLBlendModeManager
* @constructor
* @param gl {WebGLContext} the current WebGL drawing context
*/
PIXI.WebGLBlendModeManager = function ()
{
/**
* @property currentBlendMode
* @type Number
*/
this.currentBlendMode = 99999;
};
PIXI.WebGLBlendModeManager.prototype.constructor = PIXI.WebGLBlendModeManager;
/**
* Sets the WebGL Context.
*
* @method PIXI.WebGLBlendModeManager#setContext
* @param gl {WebGLContext} the current WebGL drawing context
*/
PIXI.WebGLBlendModeManager.prototype.setContext = function (gl)
{
this.gl = gl;
};
/**
* Sets-up the given blendMode from WebGL's point of view.
*
* @method PIXI.WebGLBlendModeManager#setBlendMode
* @param blendMode {Number} the blendMode, should be a Pixi const, such as PIXI.BlendModes.ADD
*/
PIXI.WebGLBlendModeManager.prototype.setBlendMode = function (blendMode)
{
if(this.currentBlendMode === blendMode) { return false; }
this.currentBlendMode = blendMode;
var blendModeWebGL = PIXI.blendModesWebGL[this.currentBlendMode];
if (blendModeWebGL)
{
this.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]);
}
return true;
};
/**
* Destroys this object.
*
* @method PIXI.WebGLBlendModeManager#destroy
*/
PIXI.WebGLBlendModeManager.prototype.destroy = function ()
{
this.gl = null;
};