///////////////////////////////////////////////////////////////////////////////
// Creates a 3x3 rotation matrix, takes radians NOT degrees
void m3dRotationMatrix33(M3DMatrix33f m, float angle, float x, float y, float z)
{
float mag, s, c;
float xx, yy, zz, xy, yz, zx, xs, ys, zs, one_c;
s = float(sin(angle));
c = float(cos(angle));
mag = float(sqrt( x*x + y*y + z*z ));
// Identity matrix
if (mag == 0.0f) {
m3dLoadIdentity33(m);
return;
}
// Rotation matrix is normalized
x /= mag;
y /= mag;
z /= mag;
xx = x * x;
yy = y * y;
zz = z * z;
xy = x * y;
yz = y * z;
zx = z * x;
xs = x * s;
ys = y * s;
zs = z * s;
one_c = 1.0f - c;
M33(0,0) = (one_c * xx) + c;
M33(0,1) = (one_c * xy) - zs;
M33(0,2) = (one_c * zx) + ys;
M33(1,0) = (one_c * xy) + zs;
M33(1,1) = (one_c * yy) + c;
M33(1,2) = (one_c * yz) - xs;
M33(2,0) = (one_c * zx) - ys;
M33(2,1) = (one_c * yz) + xs;
M33(2,2) = (one_c * zz) + c;
}
void
DOMMatrixReadOnly::Stringify(nsAString& aResult)
{
nsAutoString matrixStr;
if (mMatrix3D) {
matrixStr.AppendPrintf("matrix3d(%g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g)",
M11(), M12(), M13(), M14(),
M21(), M22(), M23(), M24(),
M31(), M32(), M33(), M34(),
M41(), M42(), M43(), M44());
} else {
matrixStr.AppendPrintf("matrix(%g, %g, %g, %g, %g, %g)", A(), B(), C(), D(), E(), F());
}
aResult = matrixStr;
}
void
DOMMatrixReadOnly::Stringify(nsAString& aResult)
{
nsAutoString matrixStr;
if (mMatrix3D) {
// We can't use AppendPrintf here, because it does locale-specific
// formatting of floating-point values.
matrixStr.AssignLiteral("matrix3d(");
AppendFloat(matrixStr, M11()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M12()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M13()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M14()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M21()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M22()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M23()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M24()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M31()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M32()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M33()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M34()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M41()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M42()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M43()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, M44());
matrixStr.AppendLiteral(")");
} else {
// We can't use AppendPrintf here, because it does locale-specific
// formatting of floating-point values.
matrixStr.AssignLiteral("matrix(");
AppendFloat(matrixStr, A()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, B()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, C()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, D()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, E()); matrixStr.AppendLiteral(", ");
AppendFloat(matrixStr, F());
matrixStr.AppendLiteral(")");
}
aResult = matrixStr;
}