313 lines
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<h1 class="file-heading">File: src/pixi/renderers/webgl/WebGLShaders.js</h1>
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<div class="file">
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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.initDefaultShaders = function()
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{
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// PIXI.primitiveShader = new PIXI.PrimitiveShader();
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// PIXI.primitiveShader.init();
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PIXI.stripShader = new PIXI.StripShader();
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PIXI.stripShader.init();
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// PIXI.defaultShader = new PIXI.PixiShader();
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// PIXI.defaultShader.init();
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/* var gl = PIXI.gl;
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var shaderProgram = PIXI.defaultShader.program;
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gl.useProgram(shaderProgram);
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gl.enableVertexAttribArray(PIXI.defaultShader.aVertexPosition);
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gl.enableVertexAttribArray(PIXI.defaultShader.colorAttribute);
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gl.enableVertexAttribArray(PIXI.defaultShader.aTextureCoord);*/
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};
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/*
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PIXI.activatePrimitiveShader = function()
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{
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var gl = PIXI.gl;
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gl.useProgram(PIXI.primitiveShader.program);
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gl.disableVertexAttribArray(PIXI.defaultShader.aVertexPosition);
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gl.disableVertexAttribArray(PIXI.defaultShader.colorAttribute);
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gl.disableVertexAttribArray(PIXI.defaultShader.aTextureCoord);
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gl.enableVertexAttribArray(PIXI.primitiveShader.aVertexPosition);
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gl.enableVertexAttribArray(PIXI.primitiveShader.colorAttribute);
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};
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PIXI.deactivatePrimitiveShader = function()
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{
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var gl = PIXI.gl;
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gl.useProgram(PIXI.defaultShader.program);
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gl.disableVertexAttribArray(PIXI.primitiveShader.aVertexPosition);
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gl.disableVertexAttribArray(PIXI.primitiveShader.colorAttribute);
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gl.enableVertexAttribArray(PIXI.defaultShader.aVertexPosition);
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gl.enableVertexAttribArray(PIXI.defaultShader.colorAttribute);
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gl.enableVertexAttribArray(PIXI.defaultShader.aTextureCoord);
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};
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*/
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/*
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PIXI.activateStripShader = function()
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{
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var gl = PIXI.gl;
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gl.useProgram(PIXI.stripShader.program);
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// gl.disableVertexAttribArray(PIXI.defaultShader.aTextureCoord);
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};
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PIXI.deactivateStripShader = function()
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{
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var gl = PIXI.gl;
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gl.useProgram(PIXI.defaultShader.program);
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//gl.enableVertexAttribArray(PIXI.defaultShader.aTextureCoord);
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};
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*/
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/*
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SHADER COMPILER HELPERS
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*/
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PIXI.CompileVertexShader = function(gl, shaderSrc)
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{
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return PIXI._CompileShader(gl, shaderSrc, gl.VERTEX_SHADER);
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};
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PIXI.CompileFragmentShader = function(gl, shaderSrc)
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{
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return PIXI._CompileShader(gl, shaderSrc, gl.FRAGMENT_SHADER);
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};
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PIXI._CompileShader = function(gl, shaderSrc, shaderType)
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{
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var src = shaderSrc.join("\n");
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var shader = gl.createShader(shaderType);
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gl.shaderSource(shader, src);
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gl.compileShader(shader);
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if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
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window.console.log(gl.getShaderInfoLog(shader));
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return null;
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}
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return shader;
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};
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PIXI.compileProgram = function(gl, vertexSrc, fragmentSrc)
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{
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//var gl = PIXI.gl;
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var fragmentShader = PIXI.CompileFragmentShader(gl, fragmentSrc);
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var vertexShader = PIXI.CompileVertexShader(gl, vertexSrc);
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var shaderProgram = gl.createProgram();
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gl.attachShader(shaderProgram, vertexShader);
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gl.attachShader(shaderProgram, fragmentShader);
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gl.linkProgram(shaderProgram);
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if (!gl.getProgramParameter(shaderProgram, gl.LINK_STATUS)) {
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window.console.log("Could not initialise shaders");
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}
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return shaderProgram;
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};
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</pre>
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