import Cartesian2 from "../Core/Cartesian2.js";
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import Cartesian3 from "../Core/Cartesian3.js";
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import Cartesian4 from "../Core/Cartesian4.js";
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import Color from "../Core/Color.js";
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import defined from "../Core/defined.js";
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import DeveloperError from "../Core/DeveloperError.js";
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import Matrix2 from "../Core/Matrix2.js";
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import Matrix3 from "../Core/Matrix3.js";
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import Matrix4 from "../Core/Matrix4.js";
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import RuntimeError from "../Core/RuntimeError.js";
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/**
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* @private
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* @constructor
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*/
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function createUniform(gl, activeUniform, uniformName, location) {
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switch (activeUniform.type) {
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case gl.FLOAT:
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return new UniformFloat(gl, activeUniform, uniformName, location);
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case gl.FLOAT_VEC2:
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return new UniformFloatVec2(gl, activeUniform, uniformName, location);
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case gl.FLOAT_VEC3:
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return new UniformFloatVec3(gl, activeUniform, uniformName, location);
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case gl.FLOAT_VEC4:
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return new UniformFloatVec4(gl, activeUniform, uniformName, location);
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case gl.SAMPLER_2D:
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case gl.SAMPLER_CUBE:
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return new UniformSampler(gl, activeUniform, uniformName, location);
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case gl.INT:
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case gl.BOOL:
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return new UniformInt(gl, activeUniform, uniformName, location);
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case gl.INT_VEC2:
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case gl.BOOL_VEC2:
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return new UniformIntVec2(gl, activeUniform, uniformName, location);
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case gl.INT_VEC3:
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case gl.BOOL_VEC3:
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return new UniformIntVec3(gl, activeUniform, uniformName, location);
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case gl.INT_VEC4:
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case gl.BOOL_VEC4:
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return new UniformIntVec4(gl, activeUniform, uniformName, location);
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case gl.FLOAT_MAT2:
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return new UniformMat2(gl, activeUniform, uniformName, location);
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case gl.FLOAT_MAT3:
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return new UniformMat3(gl, activeUniform, uniformName, location);
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case gl.FLOAT_MAT4:
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return new UniformMat4(gl, activeUniform, uniformName, location);
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default:
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throw new RuntimeError(
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"Unrecognized uniform type: " +
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activeUniform.type +
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' for uniform "' +
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uniformName +
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'".'
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);
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}
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}
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/**
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* @private
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* @constructor
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*/
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function UniformFloat(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = 0.0;
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this._gl = gl;
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this._location = location;
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}
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UniformFloat.prototype.set = function () {
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if (this.value !== this._value) {
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this._value = this.value;
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this._gl.uniform1f(this._location, this.value);
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}
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};
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///////////////////////////////////////////////////////////////////////////
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/**
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* @private
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* @constructor
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*/
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function UniformFloatVec2(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = new Cartesian2();
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this._gl = gl;
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this._location = location;
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}
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UniformFloatVec2.prototype.set = function () {
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var v = this.value;
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if (!Cartesian2.equals(v, this._value)) {
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Cartesian2.clone(v, this._value);
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this._gl.uniform2f(this._location, v.x, v.y);
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}
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};
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///////////////////////////////////////////////////////////////////////////
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/**
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* @private
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* @constructor
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*/
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function UniformFloatVec3(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = undefined;
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this._gl = gl;
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this._location = location;
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}
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UniformFloatVec3.prototype.set = function () {
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var v = this.value;
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if (defined(v.red)) {
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if (!Color.equals(v, this._value)) {
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this._value = Color.clone(v, this._value);
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this._gl.uniform3f(this._location, v.red, v.green, v.blue);
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}
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} else if (defined(v.x)) {
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if (!Cartesian3.equals(v, this._value)) {
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this._value = Cartesian3.clone(v, this._value);
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this._gl.uniform3f(this._location, v.x, v.y, v.z);
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}
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} else {
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//>>includeStart('debug', pragmas.debug);
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throw new DeveloperError(
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'Invalid vec3 value for uniform "' + this.name + '".'
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);
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//>>includeEnd('debug');
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}
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};
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///////////////////////////////////////////////////////////////////////////
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/**
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* @private
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* @constructor
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*/
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function UniformFloatVec4(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = undefined;
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this._gl = gl;
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this._location = location;
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}
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UniformFloatVec4.prototype.set = function () {
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var v = this.value;
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if (defined(v.red)) {
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if (!Color.equals(v, this._value)) {
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this._value = Color.clone(v, this._value);
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this._gl.uniform4f(this._location, v.red, v.green, v.blue, v.alpha);
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}
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} else if (defined(v.x)) {
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if (!Cartesian4.equals(v, this._value)) {
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this._value = Cartesian4.clone(v, this._value);
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this._gl.uniform4f(this._location, v.x, v.y, v.z, v.w);
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}
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} else {
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//>>includeStart('debug', pragmas.debug);
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throw new DeveloperError(
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'Invalid vec4 value for uniform "' + this.name + '".'
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);
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//>>includeEnd('debug');
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}
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};
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///////////////////////////////////////////////////////////////////////////
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/**
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* @private
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* @constructor
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*/
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function UniformSampler(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._gl = gl;
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this._location = location;
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this.textureUnitIndex = undefined;
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}
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UniformSampler.prototype.set = function () {
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var gl = this._gl;
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gl.activeTexture(gl.TEXTURE0 + this.textureUnitIndex);
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var v = this.value;
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gl.bindTexture(v._target, v._texture);
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};
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UniformSampler.prototype._setSampler = function (textureUnitIndex) {
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this.textureUnitIndex = textureUnitIndex;
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this._gl.uniform1i(this._location, textureUnitIndex);
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return textureUnitIndex + 1;
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};
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///////////////////////////////////////////////////////////////////////////
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/**
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* @private
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* @constructor
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*/
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function UniformInt(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = 0.0;
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this._gl = gl;
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this._location = location;
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}
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UniformInt.prototype.set = function () {
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if (this.value !== this._value) {
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this._value = this.value;
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this._gl.uniform1i(this._location, this.value);
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}
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};
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///////////////////////////////////////////////////////////////////////////
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/**
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* @private
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* @constructor
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*/
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function UniformIntVec2(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = new Cartesian2();
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this._gl = gl;
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this._location = location;
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}
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UniformIntVec2.prototype.set = function () {
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var v = this.value;
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if (!Cartesian2.equals(v, this._value)) {
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Cartesian2.clone(v, this._value);
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this._gl.uniform2i(this._location, v.x, v.y);
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}
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};
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///////////////////////////////////////////////////////////////////////////
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/**
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* @private
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* @constructor
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*/
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function UniformIntVec3(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = new Cartesian3();
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this._gl = gl;
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this._location = location;
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}
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UniformIntVec3.prototype.set = function () {
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var v = this.value;
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if (!Cartesian3.equals(v, this._value)) {
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Cartesian3.clone(v, this._value);
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this._gl.uniform3i(this._location, v.x, v.y, v.z);
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}
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};
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///////////////////////////////////////////////////////////////////////////
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/**
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* @private
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* @constructor
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*/
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function UniformIntVec4(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = new Cartesian4();
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this._gl = gl;
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this._location = location;
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}
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UniformIntVec4.prototype.set = function () {
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var v = this.value;
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if (!Cartesian4.equals(v, this._value)) {
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Cartesian4.clone(v, this._value);
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this._gl.uniform4i(this._location, v.x, v.y, v.z, v.w);
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}
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};
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///////////////////////////////////////////////////////////////////////////
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var scratchUniformArray = new Float32Array(4);
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/**
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* @private
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* @constructor
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*/
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function UniformMat2(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = new Matrix2();
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this._gl = gl;
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this._location = location;
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}
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UniformMat2.prototype.set = function () {
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if (!Matrix2.equalsArray(this.value, this._value, 0)) {
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Matrix2.clone(this.value, this._value);
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var array = Matrix2.toArray(this.value, scratchUniformArray);
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this._gl.uniformMatrix2fv(this._location, false, array);
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}
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};
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///////////////////////////////////////////////////////////////////////////
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var scratchMat3Array = new Float32Array(9);
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/**
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* @private
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* @constructor
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*/
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function UniformMat3(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = new Matrix3();
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this._gl = gl;
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this._location = location;
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}
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UniformMat3.prototype.set = function () {
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if (!Matrix3.equalsArray(this.value, this._value, 0)) {
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Matrix3.clone(this.value, this._value);
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var array = Matrix3.toArray(this.value, scratchMat3Array);
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this._gl.uniformMatrix3fv(this._location, false, array);
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}
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};
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///////////////////////////////////////////////////////////////////////////
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var scratchMat4Array = new Float32Array(16);
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/**
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* @private
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* @constructor
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*/
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function UniformMat4(gl, activeUniform, uniformName, location) {
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/**
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* @type {String}
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* @readonly
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*/
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this.name = uniformName;
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this.value = undefined;
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this._value = new Matrix4();
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this._gl = gl;
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this._location = location;
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}
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UniformMat4.prototype.set = function () {
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if (!Matrix4.equalsArray(this.value, this._value, 0)) {
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Matrix4.clone(this.value, this._value);
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var array = Matrix4.toArray(this.value, scratchMat4Array);
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this._gl.uniformMatrix4fv(this._location, false, array);
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}
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};
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export default createUniform;
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