/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* @class WebGLMaskManager
* @constructor
* @private
*/
PIXI.WebGLMaskManager = function()
{
};
PIXI.WebGLMaskManager.prototype.constructor = PIXI.WebGLMaskManager;
/**
* Sets the drawing context to the one given in parameter.
*
* @method setContext
* @param gl {WebGLContext} the current WebGL drawing context
*/
PIXI.WebGLMaskManager.prototype.setContext = function(gl)
{
this.gl = gl;
};
/**
* Applies the Mask and adds it to the current filter stack.
*
* @method pushMask
* @param maskData {Array}
* @param renderSession {Object}
*/
PIXI.WebGLMaskManager.prototype.pushMask = function(maskData, renderSession)
{
var gl = renderSession.gl;
if(maskData.dirty)
{
PIXI.WebGLGraphics.updateGraphics(maskData, gl);
}
if(!maskData._webGL[gl.id].data.length)return;
renderSession.stencilManager.pushStencil(maskData, maskData._webGL[gl.id].data[0], renderSession);
};
/**
* Removes the last filter from the filter stack and doesn't return it.
*
* @method popMask
* @param maskData {Array}
* @param renderSession {Object} an object containing all the useful parameters
*/
PIXI.WebGLMaskManager.prototype.popMask = function(maskData, renderSession)
{
var gl = this.gl;
renderSession.stencilManager.popStencil(maskData, maskData._webGL[gl.id].data[0], renderSession);
};
/**
* Destroys the mask stack.
*
* @method destroy
*/
PIXI.WebGLMaskManager.prototype.destroy = function()
{
this.gl = null;
};