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The existing Neon code only makes use of 64-bit vectors throughout which limits the performance on larger cores. To avoid this, swap the Neon code from a Wx8 implementation to a Wx16 implementation and process blocks of 16 full vectors at a time. The original code also handled widths that were not exact multiples of 16, however this should already be handled by the "any" kernel so it is removed. Finally, avoid duplicating the TransposeWx16_C fallback kernel definition in all architectures that need it, and just put it once in rotate_common.cc instead. Observed speedups for TransposePlane across a range of micro-architectures: Cortex-A53: -40.0% Cortex-A55: -20.7% Cortex-A57: -43.9% Cortex-A510: -43.5% Cortex-A520: -43.9% Cortex-A720: -31.1% Cortex-X2: -38.3% Cortex-X4: -43.6% Change-Id: Ic7c4d5f24eb27091d743ddc00cd95ef178b6984e Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5545459 Reviewed-by: Frank Barchard <fbarchard@chromium.org> |
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| .. | ||
| basic_types.h | ||
| compare_row.h | ||
| compare.h | ||
| convert_argb.h | ||
| convert_from_argb.h | ||
| convert_from.h | ||
| convert.h | ||
| cpu_id.h | ||
| loongson_intrinsics.h | ||
| macros_msa.h | ||
| mjpeg_decoder.h | ||
| planar_functions.h | ||
| rotate_argb.h | ||
| rotate_row.h | ||
| rotate.h | ||
| row.h | ||
| scale_argb.h | ||
| scale_rgb.h | ||
| scale_row.h | ||
| scale_uv.h | ||
| scale.h | ||
| version.h | ||
| video_common.h | ||