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| author | Frank Barchard <fbarchard@google.com> | 2022-05-23 19:15:41 -0700 |
|---|---|---|
| committer | libyuv LUCI CQ <libyuv-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2022-05-24 18:07:16 +0000 |
| commit | eb2c88e49903e602cb11b796d08de74aa0a8ef79 (patch) | |
| tree | e6fe5cd940935fd71c65b2673f0d05b9ef3cf29a /source/row_neon.cc | |
| parent | 715150b5aab187315ab75029d0973fff6ff10322 (diff) | |
| download | libyuv-eb2c88e49903e602cb11b796d08de74aa0a8ef79.tar.gz | |
Convert16To8 NEON
Pixel 3
Was C I010ToI420_Opt (749 ms)
Now NEON I010ToI420_Opt (356 ms)
Pixel 4
Was C I010ToI420_Opt (581 ms)
Now NEON I010ToI420_Opt (163 ms)
Bug: b/233233302, b/233634772
Change-Id: I60a84648a66f77d97c0a7822b29bd18b8e3a3355
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/3661401
Reviewed-by: Justin Green <greenjustin@google.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Diffstat (limited to 'source/row_neon.cc')
| -rw-r--r-- | source/row_neon.cc | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/source/row_neon.cc b/source/row_neon.cc index cda171ad..8ba71d07 100644 --- a/source/row_neon.cc +++ b/source/row_neon.cc @@ -3599,7 +3599,7 @@ void MultiplyRow_16_NEON(const uint16_t* src_y, int scale, int width) { asm volatile( - "vdup.16 q2, %2 \n" + "vdup.16 q2, %3 \n" "1: \n" "vld1.16 {q0}, [%0]! \n" "vld1.16 {q1}, [%0]! \n" @@ -3607,13 +3607,12 @@ void MultiplyRow_16_NEON(const uint16_t* src_y, "vmul.u16 q1, q1, q2 \n" "vst1.16 {q0}, [%1]! \n" "vst1.16 {q1}, [%1]! \n" - "subs %3, %3, #16 \n" // 16 src pixels per loop + "subs %2, %2, #16 \n" // 16 src pixels per loop "bgt 1b \n" : "+r"(src_y), // %0 "+r"(dst_y), // %1 - "+r"(scale), // %2 - "+r"(width) // %3 - : + "+r"(width) // %2 + : "r"(scale) // %3 : "cc", "memory", "q0", "q1", "q2"); } @@ -3622,7 +3621,7 @@ void DivideRow_16_NEON(const uint16_t* src_y, int scale, int width) { asm volatile( - "vdup.16 q0, %2 \n" + "vdup.16 q0, %3 \n" "1: \n" "vld1.16 {q1}, [%0]! \n" "vld1.16 {q2}, [%0]! \n" @@ -3640,6 +3639,34 @@ void DivideRow_16_NEON(const uint16_t* src_y, "vmovn.u32 d5, q2 \n" "vst1.16 {q1}, [%1]! \n" "vst1.16 {q2}, [%1]! \n" + "subs %2, %2, #16 \n" // 16 src pixels per loop + "bgt 1b \n" + : "+r"(src_y), // %0 + "+r"(dst_y), // %1 + "+r"(width) // %2 + : "r"(scale) // %3 + : "cc", "memory", "q0", "q1", "q2", "q3", "q4"); +} + +// Use scale to convert lsb formats to msb, depending how many bits there are: +// 32768 = 9 bits +// 16384 = 10 bits +// 4096 = 12 bits +// 256 = 16 bits +void Convert16To8Row_NEON(const uint16_t* src_y, + uint8_t* dst_y, + int scale, + int width) { + asm volatile( + "vdup.16 q2, %2 \n" + "1: \n" + "vld1.16 {q0}, [%0]! \n" + "vld1.16 {q1}, [%0]! \n" + "vqdmulh.s16 q0, q0, q2 \n" + "vqdmulh.s16 q1, q1, q2 \n" + "vqshrn.u16 d0, q0, #1 \n" + "vqshrn.u16 d1, q1, #1 \n" + "vst1.16 {q0}, [%1]! \n" "subs %3, %3, #16 \n" // 16 src pixels per loop "bgt 1b \n" : "+r"(src_y), // %0 @@ -3647,7 +3674,7 @@ void DivideRow_16_NEON(const uint16_t* src_y, "+r"(scale), // %2 "+r"(width) // %3 : - : "cc", "memory", "q0", "q1", "q2", "q3", "q4"); + : "cc", "memory", "q0", "q1", "q2"); } #endif // !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__).. |