Merge webkit.org at r54127 : Initial merge by git

Change-Id: Ib661abb595522f50ea406f72d3a0ce17f7193c82

1 files changed, 0 insertions, 698 deletions

diff --git a/WebCore/manual-tests/webgl/resources/CanvasMatrix.js b/WebCore/manual-tests/webgl/resources/CanvasMatrix.js
deleted file mode 100644
index 90fcb3f..0000000
--- a/WebCore/manual-tests/webgl/resources/CanvasMatrix.js
+++ /dev/null
@@ -1,698 +0,0 @@
-/*
-    CanvasMatrix4 class
-    
-    This class implements a 4x4 matrix. It has functions which
-    duplicate the functionality of the OpenGL matrix stack and
-    glut functions.
-    
-    IDL:
-    
-    [
-        Constructor(in CanvasMatrix4 matrix),           // copy passed matrix into new CanvasMatrix4
-        Constructor(in sequence<float> array)           // create new CanvasMatrix4 with 16 floats (row major)
-        Constructor()                                   // create new CanvasMatrix4 with identity matrix
-    ]
-    interface CanvasMatrix4 {
-        attribute float m11;
-        attribute float m12;
-        attribute float m13;
-        attribute float m14;
-        attribute float m21;
-        attribute float m22;
-        attribute float m23;
-        attribute float m24;
-        attribute float m31;
-        attribute float m32;
-        attribute float m33;
-        attribute float m34;
-        attribute float m41;
-        attribute float m42;
-        attribute float m43;
-        attribute float m44;
-
-        void load(in CanvasMatrix4 matrix);                 // copy the values from the passed matrix
-        void load(in sequence<float> array);                // copy 16 floats into the matrix
-        sequence<float> getAsArray();                       // return the matrix as an array of 16 floats
-        WebGLFloatArray getAsCanvasFloatArray();           // return the matrix as a WebGLFloatArray with 16 values
-        void makeIdentity();                                // replace the matrix with identity
-        void transpose();                                   // replace the matrix with its transpose
-        void invert();                                      // replace the matrix with its inverse
-        
-        void translate(in float x, in float y, in float z); // multiply the matrix by passed translation values on the right
-        void scale(in float x, in float y, in float z);     // multiply the matrix by passed scale values on the right
-        void rotate(in float angle,                         // multiply the matrix by passed rotation values on the right
-                    in float x, in float y, in float z);    // (angle is in degrees)
-        void multRight(in CanvasMatrix matrix);             // multiply the matrix by the passed matrix on the right
-        void multLeft(in CanvasMatrix matrix);              // multiply the matrix by the passed matrix on the left
-        void ortho(in float left, in float right,           // multiply the matrix by the passed ortho values on the right
-                   in float bottom, in float top, 
-                   in float near, in float far);
-        void frustum(in float left, in float right,         // multiply the matrix by the passed frustum values on the right
-                     in float bottom, in float top, 
-                     in float near, in float far);
-        void perspective(in float fovy, in float aspect,    // multiply the matrix by the passed perspective values on the right
-                         in float zNear, in float zFar);
-        void lookat(in float eyex, in float eyey, in float eyez,    // multiply the matrix by the passed lookat 
-                    in float ctrx, in float ctry, in float ctrz,    // values on the right
-                    in float upx, in float upy, in float upz);
-    }
-*/
-
-CanvasMatrix4 = function(m)
-{
-    if (typeof m == 'object') {
-        if ("length" in m && m.length >= 16) {
-            this.load(m[0], m[1], m[2], m[3], m[4], m[5], m[6], m[7], m[8], m[9], m[10], m[11], m[12], m[13], m[14], m[15]);
-            return;
-        }
-        else if (m instanceof CanvasMatrix4) {
-            this.load(m);
-            return;
-        }
-    }
-    this.makeIdentity();
-}
-
-CanvasMatrix4.prototype.load = function()
-{
-    if (arguments.length == 1 && typeof arguments[0] == 'object') {
-        var matrix = arguments[0];
-        
-        if ("length" in matrix && matrix.length == 16) {
-            this.m11 = matrix[0];
-            this.m12 = matrix[1];
-            this.m13 = matrix[2];
-            this.m14 = matrix[3];
-
-            this.m21 = matrix[4];
-            this.m22 = matrix[5];
-            this.m23 = matrix[6];
-            this.m24 = matrix[7];
-
-            this.m31 = matrix[8];
-            this.m32 = matrix[9];
-            this.m33 = matrix[10];
-            this.m34 = matrix[11];
-
-            this.m41 = matrix[12];
-            this.m42 = matrix[13];
-            this.m43 = matrix[14];
-            this.m44 = matrix[15];
-            return;
-        }
-            
-        if (arguments[0] instanceof CanvasMatrix4) {
-        
-            this.m11 = matrix.m11;
-            this.m12 = matrix.m12;
-            this.m13 = matrix.m13;
-            this.m14 = matrix.m14;
-
-            this.m21 = matrix.m21;
-            this.m22 = matrix.m22;
-            this.m23 = matrix.m23;
-            this.m24 = matrix.m24;
-
-            this.m31 = matrix.m31;
-            this.m32 = matrix.m32;
-            this.m33 = matrix.m33;
-            this.m34 = matrix.m34;
-
-            this.m41 = matrix.m41;
-            this.m42 = matrix.m42;
-            this.m43 = matrix.m43;
-            this.m44 = matrix.m44;
-            return;
-        }
-    }
-    
-    this.makeIdentity();
-}
-
-CanvasMatrix4.prototype.getAsArray = function()
-{
-    return [
-        this.m11, this.m12, this.m13, this.m14, 
-        this.m21, this.m22, this.m23, this.m24, 
-        this.m31, this.m32, this.m33, this.m34, 
-        this.m41, this.m42, this.m43, this.m44
-    ];
-}
-
-CanvasMatrix4.prototype.getAsCanvasFloatArray = function()
-{
-    return new WebGLFloatArray(this.getAsArray());
-}
-
-CanvasMatrix4.prototype.makeIdentity = function()
-{
-    this.m11 = 1;
-    this.m12 = 0;
-    this.m13 = 0;
-    this.m14 = 0;
-    
-    this.m21 = 0;
-    this.m22 = 1;
-    this.m23 = 0;
-    this.m24 = 0;
-    
-    this.m31 = 0;
-    this.m32 = 0;
-    this.m33 = 1;
-    this.m34 = 0;
-    
-    this.m41 = 0;
-    this.m42 = 0;
-    this.m43 = 0;
-    this.m44 = 1;
-}
-
-CanvasMatrix4.prototype.transpose = function()
-{
-    var tmp = this.m12;
-    this.m12 = this.m21;
-    this.m21 = tmp;
-    
-    tmp = this.m13;
-    this.m13 = this.m31;
-    this.m31 = tmp;
-    
-    tmp = this.m14;
-    this.m14 = this.m41;
-    this.m41 = tmp;
-    
-    tmp = this.m23;
-    this.m23 = this.m32;
-    this.m32 = tmp;
-    
-    tmp = this.m24;
-    this.m24 = this.m42;
-    this.m42 = tmp;
-    
-    tmp = this.m34;
-    this.m34 = this.m43;
-    this.m43 = tmp;
-}
-
-CanvasMatrix4.prototype.invert = function()
-{
-    // Calculate the 4x4 determinant
-    // If the determinant is zero, 
-    // then the inverse matrix is not unique.
-    var det = this._determinant4x4();
-
-    if (Math.abs(det) < 1e-8)
-        return null;
-
-    this._makeAdjoint();
-
-    // Scale the adjoint matrix to get the inverse
-    this.m11 /= det;
-    this.m12 /= det;
-    this.m13 /= det;
-    this.m14 /= det;
-    
-    this.m21 /= det;
-    this.m22 /= det;
-    this.m23 /= det;
-    this.m24 /= det;
-    
-    this.m31 /= det;
-    this.m32 /= det;
-    this.m33 /= det;
-    this.m34 /= det;
-    
-    this.m41 /= det;
-    this.m42 /= det;
-    this.m43 /= det;
-    this.m44 /= det;
-}
-
-CanvasMatrix4.prototype.translate = function(x,y,z)
-{
-    if (x == undefined)
-        x = 0;
-        if (y == undefined)
-            y = 0;
-    if (z == undefined)
-        z = 0;
-    
-    var matrix = new CanvasMatrix4();
-    matrix.m41 = x;
-    matrix.m42 = y;
-    matrix.m43 = z;
-
-    this.multRight(matrix);
-}
-
-CanvasMatrix4.prototype.scale = function(x,y,z)
-{
-    if (x == undefined)
-        x = 1;
-    if (z == undefined) {
-        if (y == undefined) {
-            y = x;
-            z = x;
-        }
-        else
-            z = 1;
-    }
-    else if (y == undefined)
-        y = x;
-    
-    var matrix = new CanvasMatrix4();
-    matrix.m11 = x;
-    matrix.m22 = y;
-    matrix.m33 = z;
-    
-    this.multRight(matrix);
-}
-
-CanvasMatrix4.prototype.rotate = function(angle,x,y,z)
-{
-    // angles are in degrees. Switch to radians
-    angle = angle / 180 * Math.PI;
-    
-    angle /= 2;
-    var sinA = Math.sin(angle);
-    var cosA = Math.cos(angle);
-    var sinA2 = sinA * sinA;
-    
-    // normalize
-    var length = Math.sqrt(x * x + y * y + z * z);
-    if (length == 0) {
-        // bad vector, just use something reasonable
-        x = 0;
-        y = 0;
-        z = 1;
-    } else if (length != 1) {
-        x /= length;
-        y /= length;
-        z /= length;
-    }
-    
-    var mat = new CanvasMatrix4();
-
-    // optimize case where axis is along major axis
-    if (x == 1 && y == 0 && z == 0) {
-        mat.m11 = 1;
-        mat.m12 = 0;
-        mat.m13 = 0;
-        mat.m21 = 0;
-        mat.m22 = 1 - 2 * sinA2;
-        mat.m23 = 2 * sinA * cosA;
-        mat.m31 = 0;
-        mat.m32 = -2 * sinA * cosA;
-        mat.m33 = 1 - 2 * sinA2;
-        mat.m14 = mat.m24 = mat.m34 = 0;
-        mat.m41 = mat.m42 = mat.m43 = 0;
-        mat.m44 = 1;
-    } else if (x == 0 && y == 1 && z == 0) {
-        mat.m11 = 1 - 2 * sinA2;
-        mat.m12 = 0;
-        mat.m13 = -2 * sinA * cosA;
-        mat.m21 = 0;
-        mat.m22 = 1;
-        mat.m23 = 0;
-        mat.m31 = 2 * sinA * cosA;
-        mat.m32 = 0;
-        mat.m33 = 1 - 2 * sinA2;
-        mat.m14 = mat.m24 = mat.m34 = 0;
-        mat.m41 = mat.m42 = mat.m43 = 0;
-        mat.m44 = 1;
-    } else if (x == 0 && y == 0 && z == 1) {
-        mat.m11 = 1 - 2 * sinA2;
-        mat.m12 = 2 * sinA * cosA;
-        mat.m13 = 0;
-        mat.m21 = -2 * sinA * cosA;
-        mat.m22 = 1 - 2 * sinA2;
-        mat.m23 = 0;
-        mat.m31 = 0;
-        mat.m32 = 0;
-        mat.m33 = 1;
-        mat.m14 = mat.m24 = mat.m34 = 0;
-        mat.m41 = mat.m42 = mat.m43 = 0;
-        mat.m44 = 1;
-    } else {
-        var x2 = x*x;
-        var y2 = y*y;
-        var z2 = z*z;
-    
-        mat.m11 = 1 - 2 * (y2 + z2) * sinA2;
-        mat.m12 = 2 * (x * y * sinA2 + z * sinA * cosA);
-        mat.m13 = 2 * (x * z * sinA2 - y * sinA * cosA);
-        mat.m21 = 2 * (y * x * sinA2 - z * sinA * cosA);
-        mat.m22 = 1 - 2 * (z2 + x2) * sinA2;
-        mat.m23 = 2 * (y * z * sinA2 + x * sinA * cosA);
-        mat.m31 = 2 * (z * x * sinA2 + y * sinA * cosA);
-        mat.m32 = 2 * (z * y * sinA2 - x * sinA * cosA);
-        mat.m33 = 1 - 2 * (x2 + y2) * sinA2;
-        mat.m14 = mat.m24 = mat.m34 = 0;
-        mat.m41 = mat.m42 = mat.m43 = 0;
-        mat.m44 = 1;
-    }
-    this.multRight(mat);
-}
-
-CanvasMatrix4.prototype.multRight = function(mat)
-{
-    var m11 = (this.m11 * mat.m11 + this.m12 * mat.m21
-               + this.m13 * mat.m31 + this.m14 * mat.m41);
-    var m12 = (this.m11 * mat.m12 + this.m12 * mat.m22
-               + this.m13 * mat.m32 + this.m14 * mat.m42);
-    var m13 = (this.m11 * mat.m13 + this.m12 * mat.m23
-               + this.m13 * mat.m33 + this.m14 * mat.m43);
-    var m14 = (this.m11 * mat.m14 + this.m12 * mat.m24
-               + this.m13 * mat.m34 + this.m14 * mat.m44);
-
-    var m21 = (this.m21 * mat.m11 + this.m22 * mat.m21
-               + this.m23 * mat.m31 + this.m24 * mat.m41);
-    var m22 = (this.m21 * mat.m12 + this.m22 * mat.m22
-               + this.m23 * mat.m32 + this.m24 * mat.m42);
-    var m23 = (this.m21 * mat.m13 + this.m22 * mat.m23
-               + this.m23 * mat.m33 + this.m24 * mat.m43);
-    var m24 = (this.m21 * mat.m14 + this.m22 * mat.m24
-               + this.m23 * mat.m34 + this.m24 * mat.m44);
-
-    var m31 = (this.m31 * mat.m11 + this.m32 * mat.m21
-               + this.m33 * mat.m31 + this.m34 * mat.m41);
-    var m32 = (this.m31 * mat.m12 + this.m32 * mat.m22
-               + this.m33 * mat.m32 + this.m34 * mat.m42);
-    var m33 = (this.m31 * mat.m13 + this.m32 * mat.m23
-               + this.m33 * mat.m33 + this.m34 * mat.m43);
-    var m34 = (this.m31 * mat.m14 + this.m32 * mat.m24
-               + this.m33 * mat.m34 + this.m34 * mat.m44);
-
-    var m41 = (this.m41 * mat.m11 + this.m42 * mat.m21
-               + this.m43 * mat.m31 + this.m44 * mat.m41);
-    var m42 = (this.m41 * mat.m12 + this.m42 * mat.m22
-               + this.m43 * mat.m32 + this.m44 * mat.m42);
-    var m43 = (this.m41 * mat.m13 + this.m42 * mat.m23
-               + this.m43 * mat.m33 + this.m44 * mat.m43);
-    var m44 = (this.m41 * mat.m14 + this.m42 * mat.m24
-               + this.m43 * mat.m34 + this.m44 * mat.m44);
-    
-    this.m11 = m11;
-    this.m12 = m12;
-    this.m13 = m13;
-    this.m14 = m14;
-    
-    this.m21 = m21;
-    this.m22 = m22;
-    this.m23 = m23;
-    this.m24 = m24;
-    
-    this.m31 = m31;
-    this.m32 = m32;
-    this.m33 = m33;
-    this.m34 = m34;
-    
-    this.m41 = m41;
-    this.m42 = m42;
-    this.m43 = m43;
-    this.m44 = m44;
-}
-
-CanvasMatrix4.prototype.multLeft = function(mat)
-{
-    var m11 = (mat.m11 * this.m11 + mat.m12 * this.m21
-               + mat.m13 * this.m31 + mat.m14 * this.m41);
-    var m12 = (mat.m11 * this.m12 + mat.m12 * this.m22
-               + mat.m13 * this.m32 + mat.m14 * this.m42);
-    var m13 = (mat.m11 * this.m13 + mat.m12 * this.m23
-               + mat.m13 * this.m33 + mat.m14 * this.m43);
-    var m14 = (mat.m11 * this.m14 + mat.m12 * this.m24
-               + mat.m13 * this.m34 + mat.m14 * this.m44);
-
-    var m21 = (mat.m21 * this.m11 + mat.m22 * this.m21
-               + mat.m23 * this.m31 + mat.m24 * this.m41);
-    var m22 = (mat.m21 * this.m12 + mat.m22 * this.m22
-               + mat.m23 * this.m32 + mat.m24 * this.m42);
-    var m23 = (mat.m21 * this.m13 + mat.m22 * this.m23
-               + mat.m23 * this.m33 + mat.m24 * this.m43);
-    var m24 = (mat.m21 * this.m14 + mat.m22 * this.m24
-               + mat.m23 * this.m34 + mat.m24 * this.m44);
-
-    var m31 = (mat.m31 * this.m11 + mat.m32 * this.m21
-               + mat.m33 * this.m31 + mat.m34 * this.m41);
-    var m32 = (mat.m31 * this.m12 + mat.m32 * this.m22
-               + mat.m33 * this.m32 + mat.m34 * this.m42);
-    var m33 = (mat.m31 * this.m13 + mat.m32 * this.m23
-               + mat.m33 * this.m33 + mat.m34 * this.m43);
-    var m34 = (mat.m31 * this.m14 + mat.m32 * this.m24
-               + mat.m33 * this.m34 + mat.m34 * this.m44);
-
-    var m41 = (mat.m41 * this.m11 + mat.m42 * this.m21
-               + mat.m43 * this.m31 + mat.m44 * this.m41);
-    var m42 = (mat.m41 * this.m12 + mat.m42 * this.m22
-               + mat.m43 * this.m32 + mat.m44 * this.m42);
-    var m43 = (mat.m41 * this.m13 + mat.m42 * this.m23
-               + mat.m43 * this.m33 + mat.m44 * this.m43);
-    var m44 = (mat.m41 * this.m14 + mat.m42 * this.m24
-               + mat.m43 * this.m34 + mat.m44 * this.m44);
-    
-    this.m11 = m11;
-    this.m12 = m12;
-    this.m13 = m13;
-    this.m14 = m14;
-
-    this.m21 = m21;
-    this.m22 = m22;
-    this.m23 = m23;
-    this.m24 = m24;
-
-    this.m31 = m31;
-    this.m32 = m32;
-    this.m33 = m33;
-    this.m34 = m34;
-
-    this.m41 = m41;
-    this.m42 = m42;
-    this.m43 = m43;
-    this.m44 = m44;
-}
-
-CanvasMatrix4.prototype.ortho = function(left, right, bottom, top, near, far)
-{
-    var tx = (left + right) / (left - right);
-    var ty = (top + bottom) / (top - bottom);
-    var tz = (far + near) / (far - near);
-    
-    var matrix = new CanvasMatrix4();
-    matrix.m11 = 2 / (left - right);
-    matrix.m12 = 0;
-    matrix.m13 = 0;
-    matrix.m14 = 0;
-    matrix.m21 = 0;
-    matrix.m22 = 2 / (top - bottom);
-    matrix.m23 = 0;
-    matrix.m24 = 0;
-    matrix.m31 = 0;
-    matrix.m32 = 0;
-    matrix.m33 = -2 / (far - near);
-    matrix.m34 = 0;
-    matrix.m41 = tx;
-    matrix.m42 = ty;
-    matrix.m43 = tz;
-    matrix.m44 = 1;
-    
-    this.multRight(matrix);
-}
-
-CanvasMatrix4.prototype.frustum = function(left, right, bottom, top, near, far)
-{
-    var matrix = new CanvasMatrix4();
-    var A = (right + left) / (right - left);
-    var B = (top + bottom) / (top - bottom);
-    var C = -(far + near) / (far - near);
-    var D = -(2 * far * near) / (far - near);
-    
-    matrix.m11 = (2 * near) / (right - left);
-    matrix.m12 = 0;
-    matrix.m13 = 0;
-    matrix.m14 = 0;
-    
-    matrix.m21 = 0;
-    matrix.m22 = 2 * near / (top - bottom);
-    matrix.m23 = 0;
-    matrix.m24 = 0;
-    
-    matrix.m31 = A;
-    matrix.m32 = B;
-    matrix.m33 = C;
-    matrix.m34 = -1;
-    
-    matrix.m41 = 0;
-    matrix.m42 = 0;
-    matrix.m43 = D;
-    matrix.m44 = 0;
-    
-    this.multRight(matrix);
-}
-
-CanvasMatrix4.prototype.perspective = function(fovy, aspect, zNear, zFar)
-{
-    var top = Math.tan(fovy * Math.PI / 360) * zNear;
-    var bottom = -top;
-    var left = aspect * bottom;
-    var right = aspect * top;
-    this.frustum(left, right, bottom, top, zNear, zFar);
-}
-
-CanvasMatrix4.prototype.lookat = function(eyex, eyey, eyez, centerx, centery, centerz, upx, upy, upz)
-{
-    var matrix = new CanvasMatrix4();
-    
-    // Make rotation matrix
-
-    // Z vector
-    var zx = eyex - centerx;
-    var zy = eyey - centery;
-    var zz = eyez - centerz;
-    var mag = Math.sqrt(zx * zx + zy * zy + zz * zz);
-    if (mag) {
-        zx /= mag;
-        zy /= mag;
-        zz /= mag;
-    }
-
-    // Y vector
-    var yx = upx;
-    var yy = upy;
-    var yz = upz;
-
-    // X vector = Y cross Z
-    xx =  yy * zz - yz * zy;
-    xy = -yx * zz + yz * zx;
-    xz =  yx * zy - yy * zx;
-
-    // Recompute Y = Z cross X
-    yx = zy * xz - zz * xy;
-    yy = -zx * xz + zz * xx;
-    yx = zx * xy - zy * xx;
-
-    // cross product gives area of parallelogram, which is < 1.0 for
-    // non-perpendicular unit-length vectors; so normalize x, y here
-
-    mag = Math.sqrt(xx * xx + xy * xy + xz * xz);
-    if (mag) {
-        xx /= mag;
-        xy /= mag;
-        xz /= mag;
-    }
-
-    mag = Math.sqrt(yx * yx + yy * yy + yz * yz);
-    if (mag) {
-        yx /= mag;
-        yy /= mag;
-        yz /= mag;
-    }
-
-    matrix.m11 = xx;
-    matrix.m12 = xy;
-    matrix.m13 = xz;
-    matrix.m14 = 0;
-    
-    matrix.m21 = yx;
-    matrix.m22 = yy;
-    matrix.m23 = yz;
-    matrix.m24 = 0;
-    
-    matrix.m31 = zx;
-    matrix.m32 = zy;
-    matrix.m33 = zz;
-    matrix.m34 = 0;
-    
-    matrix.m41 = 0;
-    matrix.m42 = 0;
-    matrix.m43 = 0;
-    matrix.m44 = 1;
-    matrix.translate(-eyex, -eyey, -eyez);
-    
-    this.multRight(matrix);
-}
-
-// Support functions
-CanvasMatrix4.prototype._determinant2x2 = function(a, b, c, d)
-{
-    return a * d - b * c;
-}
-
-CanvasMatrix4.prototype._determinant3x3 = function(a1, a2, a3, b1, b2, b3, c1, c2, c3)
-{
-    return a1 * this._determinant2x2(b2, b3, c2, c3)
-         - b1 * this._determinant2x2(a2, a3, c2, c3)
-         + c1 * this._determinant2x2(a2, a3, b2, b3);
-}
-
-CanvasMatrix4.prototype._determinant4x4 = function()
-{
-    var a1 = this.m11;
-    var b1 = this.m12; 
-    var c1 = this.m13;
-    var d1 = this.m14;
-
-    var a2 = this.m21;
-    var b2 = this.m22; 
-    var c2 = this.m23;
-    var d2 = this.m24;
-
-    var a3 = this.m31;
-    var b3 = this.m32; 
-    var c3 = this.m33;
-    var d3 = this.m34;
-
-    var a4 = this.m41;
-    var b4 = this.m42; 
-    var c4 = this.m43;
-    var d4 = this.m44;
-
-    return a1 * this._determinant3x3(b2, b3, b4, c2, c3, c4, d2, d3, d4)
-         - b1 * this._determinant3x3(a2, a3, a4, c2, c3, c4, d2, d3, d4)
-         + c1 * this._determinant3x3(a2, a3, a4, b2, b3, b4, d2, d3, d4)
-         - d1 * this._determinant3x3(a2, a3, a4, b2, b3, b4, c2, c3, c4);
-}
-
-CanvasMatrix4.prototype._makeAdjoint = function()
-{
-    var a1 = this.m11;
-    var b1 = this.m12; 
-    var c1 = this.m13;
-    var d1 = this.m14;
-
-    var a2 = this.m21;
-    var b2 = this.m22; 
-    var c2 = this.m23;
-    var d2 = this.m24;
-
-    var a3 = this.m31;
-    var b3 = this.m32; 
-    var c3 = this.m33;
-    var d3 = this.m34;
-
-    var a4 = this.m41;
-    var b4 = this.m42; 
-    var c4 = this.m43;
-    var d4 = this.m44;
-
-    // Row column labeling reversed since we transpose rows & columns
-    this.m11  =   this._determinant3x3(b2, b3, b4, c2, c3, c4, d2, d3, d4);
-    this.m21  = - this._determinant3x3(a2, a3, a4, c2, c3, c4, d2, d3, d4);
-    this.m31  =   this._determinant3x3(a2, a3, a4, b2, b3, b4, d2, d3, d4);
-    this.m41  = - this._determinant3x3(a2, a3, a4, b2, b3, b4, c2, c3, c4);
-        
-    this.m12  = - this._determinant3x3(b1, b3, b4, c1, c3, c4, d1, d3, d4);
-    this.m22  =   this._determinant3x3(a1, a3, a4, c1, c3, c4, d1, d3, d4);
-    this.m32  = - this._determinant3x3(a1, a3, a4, b1, b3, b4, d1, d3, d4);
-    this.m42  =   this._determinant3x3(a1, a3, a4, b1, b3, b4, c1, c3, c4);
-        
-    this.m13  =   this._determinant3x3(b1, b2, b4, c1, c2, c4, d1, d2, d4);
-    this.m23  = - this._determinant3x3(a1, a2, a4, c1, c2, c4, d1, d2, d4);
-    this.m33  =   this._determinant3x3(a1, a2, a4, b1, b2, b4, d1, d2, d4);
-    this.m43  = - this._determinant3x3(a1, a2, a4, b1, b2, b4, c1, c2, c4);
-        
-    this.m14  = - this._determinant3x3(b1, b2, b3, c1, c2, c3, d1, d2, d3);
-    this.m24  =   this._determinant3x3(a1, a2, a3, c1, c2, c3, d1, d2, d3);
-    this.m34  = - this._determinant3x3(a1, a2, a3, b1, b2, b3, d1, d2, d3);
-    this.m44  =   this._determinant3x3(a1, a2, a3, b1, b2, b3, c1, c2, c3);
-}