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r128: Update to include latest fix for intrinsics being incorrect included.
https://github.com/fahickman/r128/pull/15 is needed to build on platforms that define R128_STDC_ONLY
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Andreia Gaita
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5ee983188d
commit
8fad157dbb
2
thirdparty/README.md
vendored
2
thirdparty/README.md
vendored
@ -610,7 +610,7 @@ Collection of single-file libraries used in Godot components.
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* License: MIT
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- `r128.{c,h}`
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* Upstream: https://github.com/fahickman/r128
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* Version: 1.4.4 (cf2e88fc3e7d7dfe99189686f914874cd0bda15e, 2020)
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* Version: git (6fc177671c47640d5bb69af10cf4ee91050015a1, 2023)
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* License: Public Domain or Unlicense
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- `smaz.{c,h}`
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* Upstream: https://github.com/antirez/smaz
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85
thirdparty/misc/r128.h
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85
thirdparty/misc/r128.h
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@ -1,5 +1,5 @@
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/*
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r128.h: 128-bit (64.64) signed fixed-point arithmetic. Version 1.4.4
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r128.h: 128-bit (64.64) signed fixed-point arithmetic. Version 1.6.0
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COMPILATION
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-----------
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@ -127,8 +127,10 @@ extern double r128ToFloat(const R128 *v);
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// Copy
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extern void r128Copy(R128 *dst, const R128 *src);
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// Negate
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extern void r128Neg(R128 *dst, const R128 *src);
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// Sign manipulation
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extern void r128Neg(R128 *dst, const R128 *v); // -v
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extern void r128Abs(R128* dst, const R128* v); // abs(v)
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extern void r128Nabs(R128* dst, const R128* v); // -abs(v)
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// Bitwise operations
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extern void r128Not(R128 *dst, const R128 *src); // ~a
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@ -155,6 +157,7 @@ extern void r128Min(R128 *dst, const R128 *a, const R128 *b);
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extern void r128Max(R128 *dst, const R128 *a, const R128 *b);
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extern void r128Floor(R128 *dst, const R128 *v);
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extern void r128Ceil(R128 *dst, const R128 *v);
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extern void r128Round(R128 *dst, const R128 *v); // round to nearest, rounding halfway values away from zero
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extern int r128IsNeg(const R128 *v); // quick check for < 0
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// String conversion
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@ -1413,15 +1416,15 @@ void r128FromString(R128 *dst, const char *s, char **endptr)
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}
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}
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for (--s; s >= exp; --s) {
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for (const char *c = s - 1; c >= exp; --c) {
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R128_U64 digit, unused;
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if ('0' <= *s && *s <= '9') {
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digit = *s - '0';
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} else if ('a' <= *s && *s <= 'f') {
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digit = *s - 'a' + 10;
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if ('0' <= *c && *c <= '9') {
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digit = *c - '0';
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} else if ('a' <= *c && *c <= 'f') {
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digit = *c - 'a' + 10;
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} else {
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digit = *s - 'A' + 10;
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digit = *c - 'A' + 10;
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}
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lo = r128__udiv128(lo, digit, base, &unused);
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@ -1441,7 +1444,11 @@ void r128FromString(R128 *dst, const char *s, char **endptr)
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R128_S64 r128ToInt(const R128 *v)
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{
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R128_ASSERT(v != NULL);
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return (R128_S64)v->hi;
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if ((R128_S64)v->hi < 0) {
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return (R128_S64)v->hi + (v->lo != 0);
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} else {
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return (R128_S64)v->hi;
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}
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}
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double r128ToFloat(const R128 *v)
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@ -1546,12 +1553,40 @@ void r128Copy(R128 *dst, const R128 *src)
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R128_DEBUG_SET(dst);
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}
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void r128Neg(R128 *dst, const R128 *src)
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void r128Neg(R128 *dst, const R128 *v)
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{
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r128__neg(dst, src);
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r128__neg(dst, v);
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R128_DEBUG_SET(dst);
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}
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void r128Abs(R128* dst, const R128* v)
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{
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R128 sign, inv;
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R128_ASSERT(dst != NULL);
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R128_ASSERT(v != NULL);
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sign.lo = sign.hi = (R128_U64)(((R128_S64)v->hi) >> 63);
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inv.lo = v->lo ^ sign.lo;
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inv.hi = v->hi ^ sign.hi;
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r128Sub(dst, &inv, &sign);
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}
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void r128Nabs(R128* dst, const R128* v)
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{
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R128 sign, inv;
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R128_ASSERT(dst != NULL);
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R128_ASSERT(v != NULL);
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sign.lo = sign.hi = (R128_U64)(((R128_S64)v->hi) >> 63);
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inv.lo = v->lo ^ sign.lo;
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inv.hi = v->hi ^ sign.hi;
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r128Sub(dst, &sign, &inv);
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}
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void r128Not(R128 *dst, const R128 *src)
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{
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R128_ASSERT(dst != NULL);
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@ -1643,7 +1678,7 @@ void r128Shl(R128 *dst, const R128 *src, int amount)
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r[1] = r[0] << (amount - 64);
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r[0] = 0;
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} else if (amount) {
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# ifdef _M_X64
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# if defined(_M_X64) && !defined(R128_STDC_ONLY)
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r[1] = __shiftleft128(r[0], r[1], (char) amount);
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# else
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r[1] = (r[1] << amount) | (r[0] >> (64 - amount));
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@ -1705,7 +1740,7 @@ void r128Shr(R128 *dst, const R128 *src, int amount)
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r[2] = r[3] >> (amount - 64);
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r[3] = 0;
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} else if (amount) {
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#ifdef _M_X64
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#if defined(_M_X64) && !defined(R128_STDC_ONLY)
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r[2] = __shiftright128(r[2], r[3], (char) amount);
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#else
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r[2] = (r[2] >> amount) | (r[3] << (64 - amount));
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@ -2097,11 +2132,7 @@ void r128Floor(R128 *dst, const R128 *v)
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R128_ASSERT(dst != NULL);
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R128_ASSERT(v != NULL);
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if ((R128_S64)v->hi < 0) {
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dst->hi = v->hi - (v->lo != 0);
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} else {
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dst->hi = v->hi;
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}
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dst->hi = v->hi;
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dst->lo = 0;
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R128_DEBUG_SET(dst);
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}
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@ -2111,11 +2142,17 @@ void r128Ceil(R128 *dst, const R128 *v)
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R128_ASSERT(dst != NULL);
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R128_ASSERT(v != NULL);
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if ((R128_S64)v->hi > 0) {
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dst->hi = v->hi + (v->lo != 0);
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} else {
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dst->hi = v->hi;
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}
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dst->hi = v->hi + (v->lo != 0);
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dst->lo = 0;
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R128_DEBUG_SET(dst);
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}
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void r128Round(R128* dst, const R128* v)
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{
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R128_ASSERT(dst != NULL);
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R128_ASSERT(v != NULL);
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dst->hi = v->hi + (v->lo >= R128_LIT_U64(0x8000000000000000) + (R128_U64)((R128_S64)v->hi < 0));
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dst->lo = 0;
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R128_DEBUG_SET(dst);
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}
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