godot/thirdparty/opus/silk/mips/macros_mipsr1.h
Rémi Verschelde d9a291f641 ogg/vorbis/opus: Make them modules and unbundle thirdparty libs
Took the opportunity to undo the Godot changed made to the
opus source. The opus module should eventually be built in its
own environment to avoid polluting others with too many include
dirs and defines.

TODO: Fix the platform/ stuff for opus.
2016-10-15 11:50:40 +02:00

93 lines
2.8 KiB
C++

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#ifndef __SILK_MACROS_MIPSR1_H__
#define __SILK_MACROS_MIPSR1_H__
#define mips_clz(x) __builtin_clz(x)
#undef silk_SMULWB
static inline int silk_SMULWB(int a, int b)
{
long long ac;
int c;
ac = __builtin_mips_mult(a, (opus_int32)(opus_int16)b);
c = __builtin_mips_extr_w(ac, 16);
return c;
}
#undef silk_SMLAWB
#define silk_SMLAWB(a32, b32, c32) ((a32) + silk_SMULWB(b32, c32))
#undef silk_SMULWW
static inline int silk_SMULWW(int a, int b)
{
long long ac;
int c;
ac = __builtin_mips_mult(a, b);
c = __builtin_mips_extr_w(ac, 16);
return c;
}
#undef silk_SMLAWW
static inline int silk_SMLAWW(int a, int b, int c)
{
long long ac;
int res;
ac = __builtin_mips_mult(b, c);
res = __builtin_mips_extr_w(ac, 16);
res += a;
return res;
}
#define OVERRIDE_silk_CLZ16
static inline opus_int32 silk_CLZ16(opus_int16 in16)
{
int re32;
opus_int32 in32 = (opus_int32 )in16;
re32 = mips_clz(in32);
re32-=16;
return re32;
}
#define OVERRIDE_silk_CLZ32
static inline opus_int32 silk_CLZ32(opus_int32 in32)
{
int re32;
re32 = mips_clz(in32);
return re32;
}
#endif /* __SILK_MACROS_MIPSR1_H__ */