diff options
Diffstat (limited to 'libpcsxcore/pgxp_value.c')
| -rw-r--r-- | libpcsxcore/pgxp_value.c | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/libpcsxcore/pgxp_value.c b/libpcsxcore/pgxp_value.c index 5c46a7d4..c52a8999 100644 --- a/libpcsxcore/pgxp_value.c +++ b/libpcsxcore/pgxp_value.c @@ -1,5 +1,17 @@ #include "pgxp_value.h" +#include "limits.h" +void SetValue(PGXP_value *pV, u32 psxV) +{ + psx_value psx; + psx.d = psxV; + + pV->x = psx.sw.l; + pV->y = psx.sw.h; + pV->z = 0.f; + pV->flags = VALID_01; + pV->value = psx.d; +} void MakeValid(PGXP_value *pV, u32 psxV) { @@ -9,8 +21,8 @@ void MakeValid(PGXP_value *pV, u32 psxV) { pV->x = psx.sw.l; pV->y = psx.sw.h; - pV->z = 1.f; - pV->flags |= VALID_ALL; + pV->z = 0.f; + pV->flags |= VALID_01; pV->value = psx.d; } } @@ -18,11 +30,39 @@ void MakeValid(PGXP_value *pV, u32 psxV) void Validate(PGXP_value *pV, u32 psxV) { // assume pV is not NULL - pV->flags &= pV->value == psxV ? ALL : INV_VALID_ALL; + pV->flags &= (pV->value == psxV) ? ALL : INV_VALID_ALL; } void MaskValidate(PGXP_value *pV, u32 psxV, u32 mask, u32 validMask) { // assume pV is not NULL pV->flags &= ((pV->value & mask) == (psxV & mask)) ? ALL : (ALL ^ (validMask)); +} + +u32 ValueToTolerance(PGXP_value *pV, u32 psxV, float tolerance) +{ + psx_value psx; + psx.d = psxV; + u32 retFlags = VALID_ALL; + + if (fabs(pV->x - psx.sw.l) >= tolerance) + retFlags = retFlags & (VALID_1 | VALID_2 | VALID_3); + + if (fabs(pV->y - psx.sw.h) >= tolerance) + retFlags = retFlags & (VALID_0 | VALID_2 | VALID_3); + + return retFlags; +} + +/// float logical arithmetic /// + +double f16Sign(double in) { u32 s = in * (double)((u32)1 << 16); return ((double)*((s32*)&s)) / (double)((s32)1 << 16); } +double f16Unsign(double in) { return (in >= 0) ? in : ((double)in + (double)USHRT_MAX + 1); } +double fu16Trunc(double in) { u32 u = in * (double)((u32)1 << 16); return (double)u / (double)((u32)1 << 16); } +double f16Overflow(double in) +{ + double out = 0; + s64 v = ((s64)in) >> 16; + out = v; + return out; }
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