SuperTuxKart 1.5 upstream source (from official release tarball)

2026-06-11 20:04:02 +02:00
commit 2957e51aaa
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+/* SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Copyright:
+ *   2020      Evan Nemerson <evan@nemerson.com>
+ *   2021      Zhi An Ng <zhin@google.com> (Copyright owned by Google, LLC)
+ *   2023      Yi-Yen Chung <eric681@andestech.com> (Copyright owned by Andes Technology)
+ */
+
+#if !defined(SIMDE_ARM_NEON_RECPX_H)
+#define SIMDE_ARM_NEON_RECPX_H
+
+#include "types.h"
+
+HEDLEY_DIAGNOSTIC_PUSH
+SIMDE_DISABLE_UNWANTED_DIAGNOSTICS
+SIMDE_BEGIN_DECLS_
+
+SIMDE_FUNCTION_ATTRIBUTES
+simde_float16_t
+simde_vrecpxh_f16(simde_float16_t a) {
+  #if defined(SIMDE_ARM_NEON_A64V8_NATIVE) && defined(SIMDE_ARM_NEON_FP16)
+    return vrecpxh_f16(a);
+  #else
+    if (simde_isnanhf(a)) {
+      return SIMDE_NANHF;
+    }
+    uint16_t n;
+    simde_memcpy(&n, &a, sizeof(a));
+    uint16_t sign = n & 0x8000;
+    uint16_t exp = n & 0x7c00;
+    uint16_t result;
+    if (exp == 0) {
+      uint16_t max_exp = 0x7b00;
+      result = sign|max_exp;
+    }
+    else {
+      exp = ~(exp) & 0x7c00;
+      result = sign|exp;
+    }
+    simde_memcpy(&a, &result, sizeof(result));
+    return a;
+  #endif
+}
+#if defined(SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
+  #undef vrecpxh_f16
+  #define vrecpxh_f16(a) simde_vrecpxh_f16((a))
+#endif
+
+SIMDE_FUNCTION_ATTRIBUTES
+simde_float32_t
+simde_vrecpxs_f32(simde_float32_t a) {
+  #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
+    return vrecpxs_f32(a);
+  #else
+    if (simde_math_isnanf(a)) {
+      return SIMDE_MATH_NANF;
+    }
+    uint32_t n;
+    simde_memcpy(&n, &a, sizeof(a));
+    uint32_t sign = n & 0x80000000;
+    uint32_t exp = n & 0x7f800000;
+    uint32_t result;
+    if (exp == 0) {
+      uint32_t max_exp = 0x7f000000;
+      result = sign|max_exp;
+    }
+    else {
+      exp = ~(exp) & 0x7f800000;
+      result = sign|exp;
+    }
+    simde_memcpy(&a, &result, sizeof(result));
+    return a;
+  #endif
+}
+#if defined(SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
+  #undef vrecpxs_f32
+  #define vrecpxs_f32(a) simde_vrecpxs_f32((a))
+#endif
+
+SIMDE_FUNCTION_ATTRIBUTES
+simde_float64_t
+simde_vrecpxd_f64(simde_float64_t a) {
+  #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
+    return vrecpxd_f64(a);
+  #else
+    if (simde_math_isnan(a)) {
+      return SIMDE_MATH_NAN;
+    }
+    uint64_t n;
+    simde_memcpy(&n, &a, sizeof(a));
+    uint64_t sign = n & 0x8000000000000000ull;
+    uint64_t exp = n & 0x7ff0000000000000ull;
+    uint64_t result;
+    if (exp == 0) {
+      uint64_t max_exp = 0x7fe0000000000000ull;
+      result = sign|max_exp;
+    }
+    else {
+      exp = ~(exp) & 0x7ff0000000000000ull;
+      result = sign|exp;
+    }
+    simde_memcpy(&a, &result, sizeof(result));
+    return a;
+  #endif
+}
+#if defined(SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
+  #undef vrecpxd_f64
+  #define vrecpxd_f64(a) simde_vrecpxd_f64((a))
+#endif
+
+SIMDE_END_DECLS_
+HEDLEY_DIAGNOSTIC_POP
+#endif /* !defined(SIMDE_ARM_NEON_RECPX_H) */