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| author | James Zern <jzern@google.com> | 2014-08-22 10:31:01 -0700 |
|---|---|---|
| committer | James Zern <jzern@google.com> | 2014-08-22 10:31:01 -0700 |
| commit | b644eb9f446c89a25b26a19882f394b6f3711d64 (patch) | |
| tree | 3aa7e78491f41bc62fb5b2a252ee1324fd0a4e24 /third_party/libyuv/source/compare_neon.cc | |
| parent | 812506b80c4dfe6600038933a47ccef6ec3faa94 (diff) | |
| download | libvpx-b644eb9f446c89a25b26a19882f394b6f3711d64.tar libvpx-b644eb9f446c89a25b26a19882f394b6f3711d64.tar.gz libvpx-b644eb9f446c89a25b26a19882f394b6f3711d64.tar.bz2 libvpx-b644eb9f446c89a25b26a19882f394b6f3711d64.zip | |
libyuv: update to r1060
picks up some lint, build fixes
Change-Id: I0efb19385afa4ea3073a53e2b8334e57f245eea0
Diffstat (limited to 'third_party/libyuv/source/compare_neon.cc')
| -rw-r--r-- | third_party/libyuv/source/compare_neon.cc | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/third_party/libyuv/source/compare_neon.cc b/third_party/libyuv/source/compare_neon.cc index 5e7b8e443..55052c0ee 100644 --- a/third_party/libyuv/source/compare_neon.cc +++ b/third_party/libyuv/source/compare_neon.cc @@ -56,6 +56,45 @@ uint32 SumSquareError_NEON(const uint8* src_a, const uint8* src_b, int count) { return sse; } +#elif !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__) + +uint32 SumSquareError_NEON(const uint8* src_a, const uint8* src_b, int count) { + volatile uint32 sse; + asm volatile ( + "eor v16.16b, v16.16b, v16.16b \n" + "eor v18.16b, v18.16b, v18.16b \n" + "eor v17.16b, v17.16b, v17.16b \n" + "eor v19.16b, v19.16b, v19.16b \n" + + ".p2align 2 \n" + "1: \n" + MEMACCESS(0) + "ld1 {v0.16b}, [%0], #16 \n" + MEMACCESS(1) + "ld1 {v1.16b}, [%1], #16 \n" + "subs %2, %2, #16 \n" + "usubl v2.8h, v0.8b, v1.8b \n" + "usubl2 v3.8h, v0.16b, v1.16b \n" + "smlal v16.4s, v2.4h, v2.4h \n" + "smlal v17.4s, v3.4h, v3.4h \n" + "smlal2 v18.4s, v2.8h, v2.8h \n" + "smlal2 v19.4s, v3.8h, v3.8h \n" + "bgt 1b \n" + + "add v16.4s, v16.4s, v17.4s \n" + "add v18.4s, v18.4s, v19.4s \n" + "add v19.4s, v16.4s, v18.4s \n" + "addv s0, v19.4s \n" + "fmov %w3, s0 \n" + : "+r"(src_a), + "+r"(src_b), + "+r"(count), + "=r"(sse) + : + : "cc", "v0", "v1", "v2", "v3", "v16", "v17", "v18", "v19"); + return sse; +} + #endif // __ARM_NEON__ #ifdef __cplusplus |