Remove old cc-frame-viewer now that it is upstreamed into trace_viewer

tools/cc-frame-viewer/third_party/gl-matrix/src/gl-matrix/vec3.js

-/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
-  * Redistributions of source code must retain the above copyright notice, this
-    list of conditions and the following disclaimer.
-  * Redistributions in binary form must reproduce the above copyright notice,
-    this list of conditions and the following disclaimer in the documentation 
-    and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
-
-/**
- * @class 3 Dimensional Vector
- * @name vec3
- */
-var vec3 = {};
-
-/**
- * Creates a new, empty vec3
- *
- * @returns {vec3} a new 3D vector
- */
-vec3.create = function() {
-    var out = new GLMAT_ARRAY_TYPE(3);
-    out[0] = 0;
-    out[1] = 0;
-    out[2] = 0;
-    return out;
-};
-
-/**
- * Creates a new vec3 initialized with values from an existing vector
- *
- * @param {vec3} a vector to clone
- * @returns {vec3} a new 3D vector
- */
-vec3.clone = function(a) {
-    var out = new GLMAT_ARRAY_TYPE(3);
-    out[0] = a[0];
-    out[1] = a[1];
-    out[2] = a[2];
-    return out;
-};
-
-/**
- * Creates a new vec3 initialized with the given values
- *
- * @param {Number} x X component
- * @param {Number} y Y component
- * @param {Number} z Z component
- * @returns {vec3} a new 3D vector
- */
-vec3.fromValues = function(x, y, z) {
-    var out = new GLMAT_ARRAY_TYPE(3);
-    out[0] = x;
-    out[1] = y;
-    out[2] = z;
-    return out;
-};
-
-/**
- * Copy the values from one vec3 to another
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the source vector
- * @returns {vec3} out
- */
-vec3.copy = function(out, a) {
-    out[0] = a[0];
-    out[1] = a[1];
-    out[2] = a[2];
-    return out;
-};
-
-/**
- * Set the components of a vec3 to the given values
- *
- * @param {vec3} out the receiving vector
- * @param {Number} x X component
- * @param {Number} y Y component
- * @param {Number} z Z component
- * @returns {vec3} out
- */
-vec3.set = function(out, x, y, z) {
-    out[0] = x;
-    out[1] = y;
-    out[2] = z;
-    return out;
-};
-
-/**
- * Adds two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-vec3.add = function(out, a, b) {
-    out[0] = a[0] + b[0];
-    out[1] = a[1] + b[1];
-    out[2] = a[2] + b[2];
-    return out;
-};
-
-/**
- * Subtracts two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-vec3.subtract = function(out, a, b) {
-    out[0] = a[0] - b[0];
-    out[1] = a[1] - b[1];
-    out[2] = a[2] - b[2];
-    return out;
-};
-
-/**
- * Alias for {@link vec3.subtract}
- * @function
- */
-vec3.sub = vec3.subtract;
-
-/**
- * Multiplies two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-vec3.multiply = function(out, a, b) {
-    out[0] = a[0] * b[0];
-    out[1] = a[1] * b[1];
-    out[2] = a[2] * b[2];
-    return out;
-};
-
-/**
- * Alias for {@link vec3.multiply}
- * @function
- */
-vec3.mul = vec3.multiply;
-
-/**
- * Divides two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-vec3.divide = function(out, a, b) {
-    out[0] = a[0] / b[0];
-    out[1] = a[1] / b[1];
-    out[2] = a[2] / b[2];
-    return out;
-};
-
-/**
- * Alias for {@link vec3.divide}
- * @function
- */
-vec3.div = vec3.divide;
-
-/**
- * Returns the minimum of two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-vec3.min = function(out, a, b) {
-    out[0] = Math.min(a[0], b[0]);
-    out[1] = Math.min(a[1], b[1]);
-    out[2] = Math.min(a[2], b[2]);
-    return out;
-};
-
-/**
- * Returns the maximum of two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-vec3.max = function(out, a, b) {
-    out[0] = Math.max(a[0], b[0]);
-    out[1] = Math.max(a[1], b[1]);
-    out[2] = Math.max(a[2], b[2]);
-    return out;
-};
-
-/**
- * Scales a vec3 by a scalar number
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the vector to scale
- * @param {Number} b amount to scale the vector by
- * @returns {vec3} out
- */
-vec3.scale = function(out, a, b) {
-    out[0] = a[0] * b;
-    out[1] = a[1] * b;
-    out[2] = a[2] * b;
-    return out;
-};
-
-/**
- * Calculates the euclidian distance between two vec3's
- *
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {Number} distance between a and b
- */
-vec3.distance = function(a, b) {
-    var x = b[0] - a[0],
-        y = b[1] - a[1],
-        z = b[2] - a[2];
-    return Math.sqrt(x*x + y*y + z*z);
-};
-
-/**
- * Alias for {@link vec3.distance}
- * @function
- */
-vec3.dist = vec3.distance;
-
-/**
- * Calculates the squared euclidian distance between two vec3's
- *
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {Number} squared distance between a and b
- */
-vec3.squaredDistance = function(a, b) {
-    var x = b[0] - a[0],
-        y = b[1] - a[1],
-        z = b[2] - a[2];
-    return x*x + y*y + z*z;
-};
-
-/**
- * Alias for {@link vec3.squaredDistance}
- * @function
- */
-vec3.sqrDist = vec3.squaredDistance;
-
-/**
- * Calculates the length of a vec3
- *
- * @param {vec3} a vector to calculate length of
- * @returns {Number} length of a
- */
-vec3.length = function (a) {
-    var x = a[0],
-        y = a[1],
-        z = a[2];
-    return Math.sqrt(x*x + y*y + z*z);
-};
-
-/**
- * Alias for {@link vec3.length}
- * @function
- */
-vec3.len = vec3.length;
-
-/**
- * Calculates the squared length of a vec3
- *
- * @param {vec3} a vector to calculate squared length of
- * @returns {Number} squared length of a
- */
-vec3.squaredLength = function (a) {
-    var x = a[0],
-        y = a[1],
-        z = a[2];
-    return x*x + y*y + z*z;
-};
-
-/**
- * Alias for {@link vec3.squaredLength}
- * @function
- */
-vec3.sqrLen = vec3.squaredLength;
-
-/**
- * Negates the components of a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a vector to negate
- * @returns {vec3} out
- */
-vec3.negate = function(out, a) {
-    out[0] = -a[0];
-    out[1] = -a[1];
-    out[2] = -a[2];
-    return out;
-};
-
-/**
- * Normalize a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a vector to normalize
- * @returns {vec3} out
- */
-vec3.normalize = function(out, a) {
-    var x = a[0],
-        y = a[1],
-        z = a[2];
-    var len = x*x + y*y + z*z;
-    if (len > 0) {
-        //TODO: evaluate use of glm_invsqrt here?
-        len = 1 / Math.sqrt(len);
-        out[0] = a[0] * len;
-        out[1] = a[1] * len;
-        out[2] = a[2] * len;
-    }
-    return out;
-};
-
-/**
- * Calculates the dot product of two vec3's
- *
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {Number} dot product of a and b
- */
-vec3.dot = function (a, b) {
-    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
-};
-
-/**
- * Computes the cross product of two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-vec3.cross = function(out, a, b) {
-    var ax = a[0], ay = a[1], az = a[2],
-        bx = b[0], by = b[1], bz = b[2];
-
-    out[0] = ay * bz - az * by;
-    out[1] = az * bx - ax * bz;
-    out[2] = ax * by - ay * bx;
-    return out;
-};
-
-/**
- * Performs a linear interpolation between two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @param {Number} t interpolation amount between the two inputs
- * @returns {vec3} out
- */
-vec3.lerp = function (out, a, b, t) {
-    var ax = a[0],
-        ay = a[1],
-        az = a[2];
-    out[0] = ax + t * (b[0] - ax);
-    out[1] = ay + t * (b[1] - ay);
-    out[2] = az + t * (b[2] - az);
-    return out;
-};
-
-/**
- * Transforms the vec3 with a mat4.
- * 4th vector component is implicitly '1'
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the vector to transform
- * @param {mat4} m matrix to transform with
- * @returns {vec3} out
- */
-vec3.transformMat4 = function(out, a, m) {
-    var x = a[0], y = a[1], z = a[2];
-    out[0] = m[0] * x + m[4] * y + m[8] * z + m[12];
-    out[1] = m[1] * x + m[5] * y + m[9] * z + m[13];
-    out[2] = m[2] * x + m[6] * y + m[10] * z + m[14];
-    return out;
-};
-
-/**
- * Transforms the vec3 with a quat
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the vector to transform
- * @param {quat} q quaternion to transform with
- * @returns {vec3} out
- */
-vec3.transformQuat = function(out, a, q) {
-    var x = a[0], y = a[1], z = a[2],
-        qx = q[0], qy = q[1], qz = q[2], qw = q[3],
-
-        // calculate quat * vec
-        ix = qw * x + qy * z - qz * y,
-        iy = qw * y + qz * x - qx * z,
-        iz = qw * z + qx * y - qy * x,
-        iw = -qx * x - qy * y - qz * z;
-
-    // calculate result * inverse quat
-    out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;
-    out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;
-    out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;
-    return out;
-};
-
-/**
- * Perform some operation over an array of vec3s.
- *
- * @param {Array} a the array of vectors to iterate over
- * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed
- * @param {Number} offset Number of elements to skip at the beginning of the array
- * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array
- * @param {Function} fn Function to call for each vector in the array
- * @param {Object} [arg] additional argument to pass to fn
- * @returns {Array} a
- * @function
- */
-vec3.forEach = (function() {
-    var vec = vec3.create();
-
-    return function(a, stride, offset, count, fn, arg) {
-        var i, l;
-        if(!stride) {
-            stride = 3;
-        }
-
-        if(!offset) {
-            offset = 0;
-        }
-        
-        if(count) {
-            l = Math.min((count * stride) + offset, a.length);
-        } else {
-            l = a.length;
-        }
-
-        for(i = offset; i < l; i += stride) {
-            vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];
-            fn(vec, vec, arg);
-            a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];
-        }
-        
-        return a;
-    };
-})();
-
-/**
- * Returns a string representation of a vector
- *
- * @param {vec3} vec vector to represent as a string
- * @returns {String} string representation of the vector
- */
-vec3.str = function (a) {
-    return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';
-};
-
-if(typeof(exports) !== 'undefined') {
-    exports.vec3 = vec3;
-}