vendor: OpenCV 5.0.0 snapshot at 40738fb16ceddb5fb3fea747585f7ce6abb0605b

2026-08-22 00:10:33 +08:00
commit f7f077da11
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+/* power_functions.h -- POWER implementations for arch-specific functions.
+ * Copyright (C) 2020 Matheus Castanho <msc@linux.ibm.com>, IBM
+ * Copyright (C) 2021 Mika T. Lindqvist <postmaster@raasu.org>
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#ifndef POWER_FUNCTIONS_H_
+#define POWER_FUNCTIONS_H_
+
+#ifdef PPC_VMX
+uint32_t adler32_vmx(uint32_t adler, const uint8_t *buf, size_t len);
+void slide_hash_vmx(deflate_state *s);
+#endif
+
+#ifdef POWER8_VSX
+uint32_t adler32_power8(uint32_t adler, const uint8_t *buf, size_t len);
+uint32_t chunksize_power8(void);
+uint8_t* chunkmemset_safe_power8(uint8_t *out, unsigned dist, unsigned len, unsigned left);
+uint32_t crc32_power8(uint32_t crc, const uint8_t *buf, size_t len);
+void slide_hash_power8(deflate_state *s);
+void inflate_fast_power8(PREFIX3(stream) *strm, uint32_t start);
+#endif
+
+#ifdef POWER9
+uint32_t compare256_power9(const uint8_t *src0, const uint8_t *src1);
+uint32_t longest_match_power9(deflate_state *const s, Pos cur_match);
+uint32_t longest_match_slow_power9(deflate_state *const s, Pos cur_match);
+#endif
+
+
+#ifdef DISABLE_RUNTIME_CPU_DETECTION
+// Power - VMX
+#  if defined(PPC_VMX) && defined(__ALTIVEC__)
+#    undef native_adler32
+#    define native_adler32 adler32_vmx
+#    undef native_slide_hash
+#    define native_slide_hash slide_hash_vmx
+#  endif
+// Power8 - VSX
+#  if defined(POWER8_VSX) && defined(_ARCH_PWR8) && defined(__VSX__)
+#    undef native_adler32
+#    define native_adler32 adler32_power8
+#    undef native_chunkmemset_safe
+#    define native_chunkmemset_safe chunkmemset_safe_power8
+#    undef native_chunksize
+#    define native_chunksize chunksize_power8
+#    undef native_inflate_fast
+#    define native_inflate_fast inflate_fast_power8
+#    undef native_slide_hash
+#    define native_slide_hash slide_hash_power8
+#  endif
+#  if defined(POWER8_VSX_CRC32) && defined(_ARCH_PWR8) && defined(__VSX__)
+#    undef native_crc32
+#    define native_crc32 crc32_power8
+#  endif
+// Power9
+#  if defined(POWER9) && defined(_ARCH_PWR9)
+#    undef native_compare256
+#    define native_compare256 compare256_power9
+#    undef native_longest_match
+#    define native_longest_match longest_match_power9
+#    undef native_longest_match_slow
+#    define native_longest_match_slow longest_match_slow_power9
+#  endif
+#endif
+
+#endif /* POWER_FUNCTIONS_H_ */