[JSB]shader

gistfile1.txt

        if(!cc.GLProgram.createWithByteArrays){
            cc.GLProgram.createWithByteArrays = function(vert, frag){
                var shader = cc.GLProgram.create();  
                shader.initWithVertexShaderByteArray(vert, frag); 
                shader.link();  
                shader.updateUniforms();
                setTimeout(function(){
                    shader.link();  
                    shader.updateUniforms();                
                }, 0);
                return shader;
            }
        }
 
        var isHtml5 = (typeof document !== 'undefined');
        var SHADER_POSITION_GRAY_FRAG = 
            "varying vec4 v_fragmentColor;\n"+  
            "varying vec2 v_texCoord;\n"+    
            (isHtml5? "uniform sampler2D CC_Texture0;\n":"")+
            "void main()\n"+         
            "{\n"+
            "    vec4 v_orColor = v_fragmentColor * texture2D(CC_Texture0, v_texCoord);\n"+
            "    float gray = dot(v_orColor.rgb, vec3(0.299, 0.587, 0.114));\n"+
            "    gl_FragColor = vec4(gray, gray, gray, v_orColor.a);\n"+
            "}\n";
         
        var SHADER_POSITION_GRAY_VERT = 
            "attribute vec4 a_position;\n"+
            "attribute vec2 a_texCoord;\n"+
            "attribute vec4 a_color;\n"+
            "\n"+
            "varying vec4 v_fragmentColor;\n"+
            "varying vec2 v_texCoord;\n"+
            "\n"+                               
            "void main()\n"+
            "{\n"+                           
            "gl_Position = "+ (isHtml5?"(CC_PMatrix * CC_MVMatrix)":"CC_PMatrix") + " * a_position;\n"+
            "v_fragmentColor = a_color;\n"+
            "v_texCoord = a_texCoord;\n"+
            "}";
 
        function graySprite(sprite){ 
            var shader = cc.GLProgram.createWithByteArrays(SHADER_POSITION_GRAY_VERT, SHADER_POSITION_GRAY_FRAG);
                shader.addAttribute(cc.ATTRIBUTE_NAME_POSITION, cc.VERTEX_ATTRIB_POSITION);  
                shader.addAttribute(cc.ATTRIBUTE_NAME_COLOR, cc.VERTEX_ATTRIB_COLOR);  
                shader.addAttribute(cc.ATTRIBUTE_NAME_TEX_COORD, cc.VERTEX_ATTRIB_TEX_COORDS);                
                sprite.setGLProgram(shader);  
        }