- separating struct types into types-struct.h

- vec3s implementation
- fix style issues

test/src/test_common.c

@@ -47,6 +47,14 @@ test_rand_vec3(vec3 dest) {
   dest[2] = drand48();
 }
 
+vec3s
+test_rand_vec3s()
+{
+  vec3s r;
+  test_rand_vec3(r.raw);
+  return r;
+}
+
 void
 test_rand_vec4(vec4 dest) {
   srand((unsigned int)time(NULL));
@@ -127,6 +135,12 @@ test_assert_vec3_eq(vec3 v1, vec3 v2) {
   assert_true(fabsf(v1[2] - v2[2]) <= 0.000009);
 }
 
+void
+test_assert_vec3s_eq(vec3s v1, vec3s v2)
+{
+  test_assert_vec3_eq(v1.raw, v2.raw);
+}
+
 void
 test_assert_vec4_eq(vec4 v1, vec4 v2) {
   assert_true(fabsf(v1[0] - v2[0]) <= 0.000009); /* rounding errors */