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-rw-r--r--tests/un/mathf.c280
1 files changed, 280 insertions, 0 deletions
diff --git a/tests/un/mathf.c b/tests/un/mathf.c
new file mode 100644
index 0000000..cd3a24f
--- /dev/null
+++ b/tests/un/mathf.c
@@ -0,0 +1,280 @@
+#include <ungrateful.h>
+
+int main() {
+ /* 2d */
+ {
+ f32 a[2] = {1.0f, 2.0f};
+ f32 b[2] = {3.0f, 4.0f};
+ f32 n[2] = {0.0f, 1.0f};
+ f32 v[2];
+
+ un_m_add2f(v, a, b);
+ assert(fabsf(v[0] - 4.0f) < EPSILON);
+ assert(fabsf(v[1] - 6.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_sub2f(v, a, b);
+ assert(fabsf(v[0] + 2.0f) < EPSILON);
+ assert(fabsf(v[1] + 2.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_add_scalar2f(v, a, 1);
+ assert(fabsf(v[0] - 2.0f) < EPSILON);
+ assert(fabsf(v[1] - 3.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_sub_scalar2f(v, a, 1);
+ assert(fabsf(v[0]) < EPSILON);
+ assert(fabsf(v[1] - 1.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_mul_scalar2f(v, a, 2);
+ assert(fabsf(v[0] - 2.0f) < EPSILON);
+ assert(fabsf(v[1] - 4.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_div_scalar2f(v, a, 2);
+ assert(fabsf(v[0] - 0.5f) < EPSILON);
+ assert(fabsf(v[1] - 1.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_dot2f(v, a, b);
+ assert(fabsf(v[0] - 11.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_hadamard2f(v, a, b);
+ assert(fabsf(v[0] - 3.0f) < EPSILON);
+ assert(fabsf(v[1] - 8.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_project2f(v, a, b);
+ assert(fabsf(v[0] - 1.32f) < EPSILON);
+ assert(fabsf(v[1] - 1.76f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_cross2f(v, a);
+ assert(fabsf(v[0] - 2.0f) < EPSILON);
+ assert(fabsf(v[1] + 1.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_magnitude2f(v, b);
+ assert(fabsf(v[0] - 5.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_magnitude_sqr2f(v, b);
+ assert(fabsf(v[0] - 25.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_distance2f(v, a, b);
+ assert(fabsf(v[0] - sqrtf(8.0f)) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_distance_sqr2f(v, a, b);
+ assert(fabsf(v[0] - 8.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_normalize2f(v, b);
+ assert(fabsf(v[0] - 0.6f) < EPSILON);
+ assert(fabsf(v[1] - 0.8f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+
+ un_m_reflect2f(v, a, n);
+ assert(fabsf(v[0] + a[0]) < EPSILON);
+ assert(fabsf(v[1] - a[1]) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 2);
+ }
+
+ /* 3d */
+ {
+ f32 a[3] = {1.0f, 2.0f, 3.0f};
+ f32 b[3] = {3.0f, 4.0f, 5.0f};
+ f32 n[3] = {0.0f, 1.0f, 0.0f};
+ f32 v[3];
+
+ un_m_add3f(v, a, b);
+ assert(fabsf(v[0] - 4.0f) < EPSILON);
+ assert(fabsf(v[1] - 6.0f) < EPSILON);
+ assert(fabsf(v[2] - 8.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_sub3f(v, a, b);
+ assert(fabsf(v[0] + 2.0f) < EPSILON);
+ assert(fabsf(v[1] + 2.0f) < EPSILON);
+ assert(fabsf(v[2] + 2.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_add_scalar3f(v, a, 1);
+ assert(fabsf(v[0] - 2.0f) < EPSILON);
+ assert(fabsf(v[1] - 3.0f) < EPSILON);
+ assert(fabsf(v[2] - 4.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_sub_scalar3f(v, a, 1);
+ assert(fabsf(v[0]) < EPSILON);
+ assert(fabsf(v[1] - 1.0f) < EPSILON);
+ assert(fabsf(v[2] - 2.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_mul_scalar3f(v, a, 2);
+ assert(fabsf(v[0] - 2.0f) < EPSILON);
+ assert(fabsf(v[1] - 4.0f) < EPSILON);
+ assert(fabsf(v[2] - 6.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_div_scalar3f(v, a, 2);
+ assert(fabsf(v[0] - 0.5f) < EPSILON);
+ assert(fabsf(v[1] - 1.0f) < EPSILON);
+ assert(fabsf(v[2] - 1.5f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_dot3f(v, a, b);
+ assert(fabsf(v[0] - 26.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_hadamard3f(v, a, b);
+ assert(fabsf(v[0] - 3.0f) < EPSILON);
+ assert(fabsf(v[1] - 8.0f) < EPSILON);
+ assert(fabsf(v[2] - 15.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_project3f(v, a, b);
+ assert(fabsf(v[0] - 1.56f) < EPSILON);
+ assert(fabsf(v[1] - 2.08f) < EPSILON);
+ assert(fabsf(v[2] - 2.6f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_cross3f(v, a, b);
+ assert(fabsf(v[0] + 2.0f) < EPSILON);
+ assert(fabsf(v[1] - 4.0f) < EPSILON);
+ assert(fabsf(v[2] + 2.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_magnitude3f(v, b);
+ assert(fabsf(v[0] - sqrtf(50.0f)) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_magnitude_sqr3f(v, b);
+ assert(fabsf(v[0] - 50.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_distance3f(v, a, b);
+ assert(fabsf(v[0] - sqrtf(12.0f)) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_distance_sqr3f(v, a, b);
+ assert(fabsf(v[0] - 12.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_normalize3f(v, b);
+ assert(fabsf(v[0] - 0.424264f) < EPSILON);
+ assert(fabsf(v[1] - 0.565685f) < EPSILON);
+ assert(fabsf(v[2] - 0.707107f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+
+ un_m_reflect3f(v, a, n);
+ assert(fabsf(v[0] + a[0]) < EPSILON);
+ assert(fabsf(v[1] - a[1]) < EPSILON);
+ assert(fabsf(v[2] + a[2]) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 3);
+ }
+
+ /* 4d */
+ {
+ f32 a[4] = {1.0f, 2.0f, 3.0f, 4.0f};
+ f32 b[4] = {3.0f, 4.0f, 5.0f, 6.0f};
+ f32 n[4] = {0.0f, 1.0f, 0.0f, 0.0f};
+ f32 v[4];
+
+ un_m_add4f(v, a, b);
+ assert(fabsf(v[0] - 4.0f) < EPSILON);
+ assert(fabsf(v[1] - 6.0f) < EPSILON);
+ assert(fabsf(v[2] - 8.0f) < EPSILON);
+ assert(fabsf(v[3] - 10.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_sub4f(v, a, b);
+ assert(fabsf(v[0] + 2.0f) < EPSILON);
+ assert(fabsf(v[1] + 2.0f) < EPSILON);
+ assert(fabsf(v[2] + 2.0f) < EPSILON);
+ assert(fabsf(v[3] + 2.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_add_scalar4f(v, a, 1);
+ assert(fabsf(v[0] - 2.0f) < EPSILON);
+ assert(fabsf(v[1] - 3.0f) < EPSILON);
+ assert(fabsf(v[2] - 4.0f) < EPSILON);
+ assert(fabsf(v[3] - 5.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_sub_scalar4f(v, a, 1);
+ assert(fabsf(v[0]) < EPSILON);
+ assert(fabsf(v[1] - 1.0f) < EPSILON);
+ assert(fabsf(v[2] - 2.0f) < EPSILON);
+ assert(fabsf(v[3] - 3.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_mul_scalar4f(v, a, 2);
+ assert(fabsf(v[0] - 2.0f) < EPSILON);
+ assert(fabsf(v[1] - 4.0f) < EPSILON);
+ assert(fabsf(v[2] - 6.0f) < EPSILON);
+ assert(fabsf(v[3] - 8.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_div_scalar4f(v, a, 2);
+ assert(fabsf(v[0] - 0.5f) < EPSILON);
+ assert(fabsf(v[1] - 1.0f) < EPSILON);
+ assert(fabsf(v[2] - 1.5f) < EPSILON);
+ assert(fabsf(v[3] - 2.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_dot4f(v, a, b);
+ assert(fabsf(v[0] - 50.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_hadamard4f(v, a, b);
+ assert(fabsf(v[0] - 3.0f) < EPSILON);
+ assert(fabsf(v[1] - 8.0f) < EPSILON);
+ assert(fabsf(v[2] - 15.0f) < EPSILON);
+ assert(fabsf(v[3] - 24.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_project4f(v, a, b);
+ assert(fabsf(v[0] - 1.744186f) < EPSILON);
+ assert(fabsf(v[1] - 2.325581f) < EPSILON);
+ assert(fabsf(v[2] - 2.906976f) < EPSILON);
+ assert(fabsf(v[3] - 3.488372f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_magnitude4f(v, b);
+ assert(fabsf(v[0] - sqrtf(86.0f)) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_magnitude_sqr4f(v, b);
+ assert(fabsf(v[0] - 86.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_distance4f(v, a, b);
+ assert(fabsf(v[0] - 4.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_distance_sqr4f(v, a, b);
+ assert(fabsf(v[0] - 16.0f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_normalize4f(v, b);
+ assert(fabsf(v[0] - 0.323498f) < EPSILON);
+ assert(fabsf(v[1] - 0.431331f) < EPSILON);
+ assert(fabsf(v[2] - 0.539164f) < EPSILON);
+ assert(fabsf(v[3] - 0.646997f) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+
+ un_m_reflect4f(v, a, n);
+ assert(fabsf(v[0] + a[0]) < EPSILON);
+ assert(fabsf(v[1] - a[1]) < EPSILON);
+ assert(fabsf(v[2] + a[2]) < EPSILON);
+ assert(fabsf(v[3] + a[3]) < EPSILON);
+ un_memory_set((void*)v, 0, sizeof(*v) * 4);
+ }
+
+ return 0;
+}
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