259 lines
8.3 KiB
C++
259 lines
8.3 KiB
C++
#include "spec_helper.h"
|
|
#include <iostream>
|
|
using vectorial::vec4f;
|
|
|
|
const int epsilon = 1;
|
|
|
|
describe(vec4f, "constructing") {
|
|
it("should have default constructor that does nothing..") {
|
|
vec4f x;
|
|
}
|
|
|
|
it("should have constructor with element values") {
|
|
vec4f x(10,20,30,40);
|
|
// octave vec4f: [10,20,30,40]
|
|
should_be_equal_vec4f(x, simd4f_create(10.000000000000000f, 20.000000000000000f, 30.000000000000000f, 40.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have constructor that loads from a float array") {
|
|
float ary[4] = { 1,2,3,4 };
|
|
vec4f x(ary);
|
|
// octave vec4f: [1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(1.000000000000000f, 2.000000000000000f, 3.000000000000000f, 4.000000000000000f), epsilon );
|
|
}
|
|
|
|
}
|
|
|
|
describe(vec4f, "loads and stores") {
|
|
|
|
|
|
it("should have method for loading from a float array") {
|
|
float ary[4] = { 1,2,3,4 };
|
|
vec4f x(-1, -1, -1, -1);
|
|
x.load(ary);
|
|
// octave vec4f: [1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(1.000000000000000f, 2.000000000000000f, 3.000000000000000f, 4.000000000000000f), epsilon );
|
|
}
|
|
|
|
it("should have method for storing to a float array") {
|
|
float ary[4] = { -1, -1, -1, -1 };
|
|
vec4f x(1, 2, 3, 4);
|
|
x.store(ary);
|
|
should_be_close_to(ary[0], 1, epsilon);
|
|
should_be_close_to(ary[1], 2, epsilon);
|
|
should_be_close_to(ary[2], 3, epsilon);
|
|
should_be_close_to(ary[3], 4, epsilon);
|
|
}
|
|
|
|
}
|
|
|
|
describe(vec4f, "arithmetic with another vec4f") {
|
|
|
|
it("should have operator+ for component-wise addition") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f b(10,20,30,40);
|
|
vec4f x = a + b;
|
|
// octave vec4f: [1,2,3,4] + [10,20,30,40]
|
|
should_be_equal_vec4f(x, simd4f_create(11.000000000000000f, 22.000000000000000f, 33.000000000000000f, 44.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator- for component-wise subtraction") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f b(10,20,30,40);
|
|
vec4f x = b - a;
|
|
// octave vec4f: [10,20,30,40] - [1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(9.000000000000000f, 18.000000000000000f, 27.000000000000000f, 36.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator* for component-wise multiplication") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f b(10,20,30,40);
|
|
vec4f x = a * b;
|
|
// octave vec4f: [1,2,3,4] .* [10,20,30,40]
|
|
should_be_equal_vec4f(x, simd4f_create(10.000000000000000f, 40.000000000000000f, 90.000000000000000f, 160.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator/ for component-wise division") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f b(10,20,30,40);
|
|
vec4f x = b / a;
|
|
// octave vec4f: [10,20,30,40] ./ [1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(10.000000000000000f, 10.000000000000000f, 10.000000000000000f, 10.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
it("should have operator+= for component-wise addition") {
|
|
vec4f x(1,2,3,4);
|
|
vec4f b(10,20,30,40);
|
|
x += b;
|
|
// octave vec4f: [1,2,3,4] + [10,20,30,40]
|
|
should_be_equal_vec4f(x, simd4f_create(11.000000000000000f, 22.000000000000000f, 33.000000000000000f, 44.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator-= for component-wise subtraction") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f x(10,20,30,40);
|
|
x -= a;
|
|
// octave vec4f: [10,20,30,40] - [1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(9.000000000000000f, 18.000000000000000f, 27.000000000000000f, 36.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator*= for component-wise multiplication") {
|
|
vec4f x(1,2,3,4);
|
|
vec4f b(10,20,30,40);
|
|
x *= b;
|
|
// octave vec4f: [1,2,3,4] .* [10,20,30,40]
|
|
should_be_equal_vec4f(x, simd4f_create(10.000000000000000f, 40.000000000000000f, 90.000000000000000f, 160.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator/= for component-wise division") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f x(10,20,30,40);
|
|
x /= a;
|
|
// octave vec4f: [10,20,30,40] ./ [1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(10.000000000000000f, 10.000000000000000f, 10.000000000000000f, 10.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
describe(vec4f, "arithmetic with scalar") {
|
|
|
|
it("should have operator+ for component-wise addition") {
|
|
vec4f a(1,2,3,4);
|
|
float b=10;
|
|
vec4f x = a + b;
|
|
// octave vec4f: [1,2,3,4] + 10
|
|
should_be_equal_vec4f(x, simd4f_create(11.000000000000000f, 12.000000000000000f, 13.000000000000000f, 14.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator- for component-wise subtraction") {
|
|
float a=10;
|
|
vec4f b(10,20,30,40);
|
|
vec4f x = b - a;
|
|
// octave vec4f: [10,20,30,40] - 10
|
|
should_be_equal_vec4f(x, simd4f_create(0.000000000000000f, 10.000000000000000f, 20.000000000000000f, 30.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator* for component-wise multiplication") {
|
|
vec4f a(1,2,3,4);
|
|
float b=10;
|
|
vec4f x = a * b;
|
|
// octave vec4f: [1,2,3,4] .* 10
|
|
should_be_equal_vec4f(x, simd4f_create(10.000000000000000f, 20.000000000000000f, 30.000000000000000f, 40.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator/ for component-wise division") {
|
|
vec4f a(10,20,30,40);
|
|
float b=10;
|
|
vec4f x = a / b;
|
|
// octave vec4f: [10,20,30,40] ./ 10
|
|
should_be_equal_vec4f(x, simd4f_create(1.000000000000000f, 2.000000000000000f, 3.000000000000000f, 4.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
|
|
|
|
it("should have operator+ for component-wise addition (float as lhs)") {
|
|
vec4f b(1,2,3,4);
|
|
float a=10;
|
|
vec4f x = a + b;
|
|
// octave vec4f: 10 + [1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(11.000000000000000f, 12.000000000000000f, 13.000000000000000f, 14.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator- for component-wise subtraction (float as lhs)") {
|
|
float b=50;
|
|
vec4f a(10,20,30,40);
|
|
vec4f x = b - a;
|
|
// octave vec4f: 50 - [10,20,30,40]
|
|
should_be_equal_vec4f(x, simd4f_create(40.000000000000000f, 30.000000000000000f, 20.000000000000000f, 10.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator* for component-wise multiplication (float as lhs)") {
|
|
vec4f b(1,2,3,4);
|
|
float a=10;
|
|
vec4f x = a * b;
|
|
// octave vec4f: 10 .* [1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(10.000000000000000f, 20.000000000000000f, 30.000000000000000f, 40.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
it("should have operator* for component-wise multiplication (float as lhs)") {
|
|
vec4f b(10,20,30,40);
|
|
float a=40;
|
|
vec4f x = a / b;
|
|
// octave vec4f: 40 ./ [10,20,30,40]
|
|
should_be_equal_vec4f(x, simd4f_create(4.000000000000000f, 2.000000000000000f, 1.333333333333333f, 1.000000000000000f), epsilon );
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
describe(vec4f, "vector math") {
|
|
|
|
it("should have unary minus operator") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f x = -a;
|
|
// octave vec4f: -[1,2,3,4]
|
|
should_be_equal_vec4f(x, simd4f_create(-1.000000000000000f, -2.000000000000000f, -3.000000000000000f, -4.000000000000000f), epsilon );
|
|
}
|
|
|
|
it("should have dot function") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f b(6,7,8,9);
|
|
float x = vectorial::dot(a,b);
|
|
|
|
// octave vec4f: dot([1,2,3,4],[6,7,8,9])
|
|
should_be_close_to(x, 80.000000000000000f, epsilon );
|
|
}
|
|
|
|
it("should have length_squared function") {
|
|
vec4f a(1,2,3,4);
|
|
float x = vectorial::length_squared(a);
|
|
|
|
// octave vec4f: dot([1,2,3,4],[1,2,3,4])
|
|
should_be_close_to(x, 30.000000000000000f, epsilon );
|
|
}
|
|
|
|
it("should have length function") {
|
|
vec4f a(1,2,3,4);
|
|
float x = vectorial::length(a);
|
|
|
|
// octave vec4f: norm([1,2,3,4])
|
|
should_be_close_to(x, 5.477225575051661f, epsilon );
|
|
}
|
|
|
|
|
|
it("should have normalize function") {
|
|
vec4f a(1,2,3,4);
|
|
vec4f x = vectorial::normalize(a);
|
|
// octave vec4f: [1,2,3,4] / norm([1,2,3,4])
|
|
should_be_equal_vec4f(x, simd4f_create(0.182574185835055f, 0.365148371670111f, 0.547722557505166f, 0.730296743340221f), epsilon );
|
|
}
|
|
|
|
}
|
|
|
|
|