| Line |
Branch |
Exec |
Source |
| 1 |
|
|
#pragma once |
| 2 |
|
|
|
| 3 |
|
|
#include "base/vec3.h" |
| 4 |
|
|
|
| 5 |
|
|
#include "assert/assert.h" |
| 6 |
|
|
#include "base/numeric.h" |
| 7 |
|
|
|
| 8 |
|
|
namespace eu |
| 9 |
|
|
{ |
| 10 |
|
|
/** \addtogroup math |
| 11 |
|
|
* @{ |
| 12 |
|
|
*/ |
| 13 |
|
|
|
| 14 |
|
|
/// A 4d vector. |
| 15 |
|
|
/// It represents a homogeneous coordinate/projective coordinate. |
| 16 |
|
|
struct v4 |
| 17 |
|
|
{ |
| 18 |
|
|
float x; |
| 19 |
|
|
float y; |
| 20 |
|
|
float z; |
| 21 |
|
|
float w; |
| 22 |
|
|
|
| 23 |
|
|
v4(float ax, float ay, float az, float aw); |
| 24 |
|
|
|
| 25 |
|
|
/// @param a the xyz components |
| 26 |
|
|
/// @param aw the w component, point=1, vector=0 |
| 27 |
|
|
v4(const v3 &a, float aw); |
| 28 |
|
|
|
| 29 |
|
|
/// Construct the vector from an array. |
| 30 |
|
|
/// It is assumed the array is of at least 4 elements in xyzw order. |
| 31 |
|
|
explicit v4(const float *a); |
| 32 |
|
|
|
| 33 |
|
|
/// asserts that the w component is what is expected, point=1, vector=0 |
| 34 |
|
|
[[nodiscard]] v3 to_vec3(float ww) const; |
| 35 |
|
|
|
| 36 |
|
|
/// returns a 3d vector using perspective division |
| 37 |
|
|
[[nodiscard]] v3 to_vec3_persp_div() const; |
| 38 |
|
|
|
| 39 |
|
|
/// returns an array to the data |
| 40 |
|
|
float* get_data_ptr(); |
| 41 |
|
|
|
| 42 |
|
|
/// returns an array to the data |
| 43 |
|
|
[[nodiscard]] const float *get_data_ptr() const; |
| 44 |
|
|
|
| 45 |
|
|
bool operator==(const v4 &rhs) = delete; |
| 46 |
|
|
}; |
| 47 |
|
|
|
| 48 |
|
|
/// converts a 4d vector to a string, prefer fmt |
| 49 |
|
|
std::string string_from(const v4 &v); |
| 50 |
|
|
|
| 51 |
|
|
/** @}*/ |
| 52 |
|
|
|
| 53 |
|
|
ADD_CATCH_FORMATTER_DEF(v4) |
| 54 |
|
|
} |
| 55 |
|
|
|
| 56 |
1/2
✓ Branch 0 (2 → 3) taken 1 times.
✗ Branch 1 (2 → 17) not taken.
|
2 |
ADD_DEFAULT_FORMATTER(eu::v4, std::string, eu::string_from); |
| 57 |
|
|
|
| 58 |
|
|
|