Shader.prototype.validate = function() {
gl.validateProgram(this._program);
if( ! gl.getProgramParameter(this._program, gl.VALIDATE_STATUS)) {
console.log(gl.getProgramInfoLog(this._program));
}
return this;
}
function Shader(vertexUrl, fragmentUrl, wildcards) {
this._wildcards = wildcards || {};
// Uniform lookup table.
this._uniforms = {};
// Attribute lookup table.
this._attributes = {};
// Shader program container
var program = this._program = gl.createProgram();
var shaders = [
{ type: gl.VERTEX_SHADER, url: vertexUrl, handle: null, src: null },
{ type: gl.FRAGMENT_SHADER, url: fragmentUrl, handle: null, src: null }
];
shaders.forEach(function(details) {
console.log("Attemping to compile: ", details.url);
// Preprocessing all #include directives.
details.src = PreProcess(details.url);
for(var k in wildcards) {
if(wildcards.hasOwnProperty(k)) {
details.src = details.src.replace(k, wildcards[k]);
}
}
// Create a shader handle to work with
details.handle = gl.createShader(details.type);
gl.shaderSource(details.handle, details.src);
gl.compileShader(details.handle);
if( ! gl.getShaderParameter(details.handle, gl.COMPILE_STATUS)) {
var error = gl.getShaderInfoLog(details.handle);
details.src.split("\n").forEach(function(line, i) {
console.log(i + " " + line);
});
//console.log(details.src);
error.split("\n").forEach(function(line) {
console.log(" " + line);
});
//console.log(error);
}
// Attach to the program
gl.attachShader(program, details.handle);
});
gl.linkProgram(program);
if( ! gl.getProgramParameter(program, gl.LINK_STATUS)) {
console.log("Could not initialize shaders.");
}
// Detach the shaders. OpenGL does internal reference counting and won't
// dispose the shaders until the program is deleted, too.
shaders.forEach(function(details) {
gl.deleteShader(details.handle);
});
}