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27 lines
926 B
27 lines
926 B
#ifndef __QMATH_H__
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#define __QMATH_H__
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MATRIX *RotMatrixQ(SVECTOR *r, MATRIX *m);
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INLINE short m_dot12s(const SVECTOR a, const SVECTOR b)
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{
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return (short)(((int)a.vx * b.vx) >> 12) + (((int)a.vy * b.vy) >> 12) + (((int)a.vz * b.vz) >> 12);
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}
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// TODO: worth a benchmark: is it faster to copy these vectors and use them from the stack, or to do six pointer dereferences?
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INLINE short m_pointPlaneDist2(const VECTOR point2, const SVECTOR normal12, int dist2)
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{
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int x = ((int)point2.vx * normal12.vx) >> 12;
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int y = ((int)point2.vy * normal12.vy) >> 12;
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int z = ((int)point2.vz * normal12.vz) >> 12;
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return (short)(x + y + z - dist2);
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}
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INLINE void m_lightColor(const CVECTOR *color, short light, CVECTOR *outColor)
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{
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outColor->r = (uint8_t)((light * color->r) >> 8);
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outColor->g = (uint8_t)((light * color->g) >> 8);
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outColor->b = (uint8_t)((light * color->b) >> 8);
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}
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#endif // __QMATH_H__
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