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The start of making Quaternions first class citizens

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strangezak
2018-06-15 17:28:04 -07:00
parent 2a050bc124
commit a22d411267
1 changed files with 19 additions and 3 deletions
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22
HandmadeMath.h
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@@ -481,8 +481,17 @@ typedef union hmm_quaternion
float W; float W;
}; };
struct
{
hmm_vec4 XYZW;
};
float Elements[4]; float Elements[4];
#if HANDMADE_MATH__USE_SSE
_m128 InternalElementsSSE;
#endif
} hmm_quaternion; } hmm_quaternion;
typedef int32_t hmm_bool; typedef int32_t hmm_bool;
@@ -1317,11 +1326,14 @@ HMM_INLINE hmm_quaternion HMM_Quaternion(float X, float Y, float Z, float W)
{ {
hmm_quaternion Result; hmm_quaternion Result;
#if HANDMADE_MATH__USE_SSE
Result.InternalElementsSSE = _mm_setr_ps(X, Y, Z, W);
#else
Result.X = X; Result.X = X;
Result.Y = Y; Result.Y = Y;
Result.Z = Z; Result.Z = Z;
Result.W = W; Result.W = W;
#endif
return (Result); return (Result);
} }
@@ -1329,11 +1341,15 @@ HMM_INLINE hmm_quaternion HMM_QuaternionV4(hmm_vec4 Vector)
{ {
hmm_quaternion Result; hmm_quaternion Result;
#if HANDMADE_MATH__USE_SSE
Result.InternalElementsSSE = _mm_setr_ps(Vector.X, Vector.Y, Vector.Z, Vector.W);
#else
Result.X = Vector.X; Result.X = Vector.X;
Result.Y = Vector.Y; Result.Y = Vector.Y;
Result.Z = Vector.Z; Result.Z = Vector.Z;
Result.W = Vector.W; Result.W = Vector.W;
#endif
return (Result); return (Result);
} }