OpenGL Mathematics (GLM)
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#define GLM_FORCE_MESSAGES
#define GLM_FORCE_SWIZZLE
#include <glm/glm.hpp>
#if !GLM_HAS_ONLY_XYZW
int test_ivec2_swizzle()
{
int Error = 0;
glm::ivec2 A(1, 2);
glm::ivec2 B = A.yx();
glm::ivec2 C = B.yx();
Error += A != B ? 0 : 1;
Error += A == C ? 0 : 1;
return Error;
}
int test_ivec3_swizzle()
{
int Error = 0;
glm::ivec3 A(1, 2, 3);
glm::ivec3 B = A.zyx();
glm::ivec3 C = B.zyx();
Error += A != B ? 0 : 1;
Error += A == C ? 0 : 1;
return Error;
}
int test_ivec4_swizzle()
{
int Error = 0;
glm::ivec4 A(1, 2, 3, 4);
glm::ivec4 B = A.wzyx();
glm::ivec4 C = B.wzyx();
Error += A != B ? 0 : 1;
Error += A == C ? 0 : 1;
return Error;
}
int test_vec4_swizzle()
{
int Error = 0;
glm::vec4 A(1, 2, 3, 4);
glm::vec4 B = A.wzyx();
glm::vec4 C = B.wzyx();
Error += A != B ? 0 : 1;
Error += A == C ? 0 : 1;
float f = glm::dot(C.wzyx(), C.xyzw());
Error += glm::abs(f - 20.f) < 0.01f ? 0 : 1;
return Error;
}
#endif//!GLM_HAS_ONLY_XYZW
int main()
{
int Error = 0;
# if !GLM_HAS_ONLY_XYZW
Error += test_ivec2_swizzle();
Error += test_ivec3_swizzle();
Error += test_ivec4_swizzle();
Error += test_vec4_swizzle();
# endif//!GLM_HAS_ONLY_XYZW
return Error;
}