optimized AngleVectors calls (pass NULL for vectors that should not be generated)

[xonotic/darkplaces.git] / mathlib.h

diff --git a/mathlib.h b/mathlib.h
index 3b669e90838d348fd991e06ee0fb933683cc1b8d..fde3d3e55bd3f2bf60c631466768e7c8dea16c12 100644 (file)
--- a/mathlib.h
+++ b/mathlib.h
@@ -20,8 +20,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 // mathlib.h
 
 typedef float vec_t;
+typedef vec_t vec2_t[2];
 typedef vec_t vec3_t[3];
+typedef vec_t vec4_t[4];
 typedef vec_t vec5_t[5];
+typedef vec_t vec6_t[6];
+typedef vec_t vec7_t[7];
+typedef vec_t vec8_t[8];
 
 typedef        int     fixed4_t;
 typedef        int     fixed8_t;
@@ -53,6 +58,8 @@ extern        int nanmask;
 #define VectorDistance2(a, b) ((a[0] - b[0]) * (a[0] - b[0]) + (a[1] - b[1]) * (a[1] - b[1]) + (a[2] - b[2]) * (a[2] - b[2]))
 #define VectorDistance(a, b) (sqrt(VectorDistance2(a,b)))
 #define VectorLength(a) sqrt(DotProduct(a, a))
+#define VectorScaleQuick(in, scale, out) {(out)[0] = (in)[0] * (scale);(out)[1] = (in)[1] * (scale);(out)[2] = (in)[2] * (scale);}
+#define VectorMAQuick(a, scale, b, c) {(c)[0] = (a)[0] + (scale) * (b)[0];(c)[1] = (a)[1] + (scale) * (b)[1];(c)[2] = (a)[2] + (scale) * (b)[2];}
 
 
 void VectorMA (vec3_t veca, float scale, vec3_t vecb, vec3_t vecc);
@@ -70,6 +77,12 @@ void VectorInverse (vec3_t v);
 void VectorScale (vec3_t in, vec_t scale, vec3_t out);
 int Q_log2(int val);
 
+#define NUMVERTEXNORMALS       162
+extern float m_bytenormals[NUMVERTEXNORMALS][3];
+
+byte NormalToByte(vec3_t n);
+void ByteToNormal(byte num, vec3_t n);
+
 void R_ConcatRotations (float in1[3][3], float in2[3][3], float out[3][3]);
 void R_ConcatTransforms (float in1[3][4], float in2[3][4], float out[3][4]);
 
@@ -79,6 +92,8 @@ int GreatestCommonDivisor (int i1, int i2);
 void AngleVectors (vec3_t angles, vec3_t forward, vec3_t right, vec3_t up);
 float  anglemod(float a);
 
+// LordHavoc: like AngleVectors, but taking a forward vector instead of angles, useful!
+void VectorVectors(const vec3_t forward, vec3_t right, vec3_t up);
 
 void BoxOnPlaneSideClassify(struct mplane_s *p);