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- Split out sine/cosine scaling from bsinf() and bcosf() into its own inline.

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This commit is contained in:
Mitch Richters 2021-10-30 14:50:24 +11:00 committed by Christoph Oelckers
parent 07fc3b77b1
commit 3663c4c742
1 changed files with 7 additions and 2 deletions
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9
source/core/binaryangle.h
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@ -63,6 +63,11 @@ constexpr double BAngToDegree = 360. / 2048.;
extern int16_t sintable[2048];
inline constexpr double sinscale(const int shift)
{
return shift >= -SINSHIFT ? uint64_t(1) << (SINSHIFT + shift) : 1. / (uint64_t(1) << abs(SINSHIFT + shift));
}
//---------------------------------------------------------------------------
//
// Build sine inline functions.
@ -75,7 +80,7 @@ inline int bsin(const int ang, const int shift = 0)
}
inline double bsinf(const double ang, const int shift = 0)
{
return g_sin(ang * BAngRadian) * (shift >= -SINSHIFT ? uint64_t(1) << (SINSHIFT + shift) : 1. / (uint64_t(1) << abs(SINSHIFT + shift)));
return g_sin(ang * BAngRadian) * sinscale(shift);
}
@ -91,7 +96,7 @@ inline int bcos(const int ang, const int shift = 0)
}
inline double bcosf(const double ang, const int shift = 0)
{
return g_cos(ang * BAngRadian) * (shift >= -SINSHIFT ? uint64_t(1) << (SINSHIFT + shift) : 1. / (uint64_t(1) << abs(SINSHIFT + shift)));
return g_cos(ang * BAngRadian) * sinscale(shift);
}