847eb6c48e
Fixed issue where alpha not being set correctly in canvas spriteBatch Fixed issue where previous stage events did not get removed correctly
270 lines
9.1 KiB
HTML
270 lines
9.1 KiB
HTML
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<h1 class="file-heading">File: src/pixi/renderers/webgl/utils/WebGLMaskManager.js</h1>
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<pre class="code prettyprint linenums">
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/**
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* @author Mat Groves http://matgroves.com/ @Doormat23
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*/
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PIXI.WebGLMaskManager = function(gl)
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{
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this.maskStack = [];
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this.maskPosition = 0;
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this.setContext(gl);
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};
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PIXI.WebGLMaskManager.prototype.setContext = function(gl)
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{
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this.gl = gl;
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};
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PIXI.WebGLMaskManager.prototype.pushMask = function(maskData, renderSession)
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{
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var gl = this.gl;
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if(this.maskStack.length === 0)
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{
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gl.enable(gl.STENCIL_TEST);
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gl.stencilFunc(gl.ALWAYS,1,1);
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}
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// maskData.visible = false;
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this.maskStack.push(maskData);
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gl.colorMask(false, false, false, true);
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gl.stencilOp(gl.KEEP,gl.KEEP,gl.INCR);
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PIXI.WebGLGraphics.renderGraphics(maskData, renderSession);
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gl.colorMask(true, true, true, true);
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gl.stencilFunc(gl.NOTEQUAL,0, this.maskStack.length);
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gl.stencilOp(gl.KEEP,gl.KEEP,gl.KEEP);
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};
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PIXI.WebGLMaskManager.prototype.popMask = function(renderSession)
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{
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var gl = this.gl;
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var maskData = this.maskStack.pop();
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if(maskData)
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{
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gl.colorMask(false, false, false, false);
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//gl.stencilFunc(gl.ALWAYS,1,1);
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gl.stencilOp(gl.KEEP,gl.KEEP,gl.DECR);
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PIXI.WebGLGraphics.renderGraphics(maskData, renderSession);
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gl.colorMask(true, true, true, true);
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gl.stencilFunc(gl.NOTEQUAL,0,this.maskStack.length);
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gl.stencilOp(gl.KEEP,gl.KEEP,gl.KEEP);
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}
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if(this.maskStack.length === 0)gl.disable(gl.STENCIL_TEST);
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};
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PIXI.WebGLMaskManager.prototype.destroy = function()
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{
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this.maskStack = null;
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this.gl = null;
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};
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</pre>
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