libyuv/source/rotate_win.cc
Frank Barchard bad060c3a5 Rotate intrinsics for Visual C, ROWWIN and 32 bit x86
- Port rotate_gcc.cc to intrinsics in rotate_win.cc: TransposeWx8_SSSE3,
  TransposeUVWx8_SSE2, TransposeWx16_AVX2, TransposeUVWx16_AVX2,
  Transpose4x4_32_SSE2, Transpose4x4_32_AVX2, and for 64 bit,
  TransposeWx16_AVX512BW and TransposeUVWx16_AVX512BW.
- Remove the 32 bit Visual C inline assembly.
- Enable rotate_win.cc for Visual C 32/64 bit, LIBYUV_ENABLE_ROWWIN,
  which MemorySanitizer also enables, and all 32 bit x86 compilers.
  Visual C 64 bit previously used C.
- rotate_gcc.cc is now 64 bit only. 32 bit gcc and clang only had an
  8x8 TransposeWx8_SSSE3 and Transpose4x4_32, because the UV and AVX2
  inline assembly uses xmm8..xmm15, so 32 bit NV12 rotate used C.
  Remove the 32 bit TransposeWx8_SSSE3 inline assembly.
- Add a target("sse2") attribute to the SSE2 intrinsics so gcc and
  clang build them when the baseline lacks SSE2, such as
  -march=pentium3.
- Disable the generic x86 scale_row.h and compare_row.h HAS_ macros for
  32 bit LIBYUV_ENABLE_ROWWIN, as is done for 64 bit. scale_gcc.cc and
  compare_gcc.cc are disabled for ROWWIN and scale_win.cc and
  compare_win.cc require _MSC_VER, so out/rowwin_x86 failed to link with
  undefined symbols such as ScaleARGBCols_SSE2 and HashDjb2_SSE41.
- TransposeWx8_SSSE3 and TransposeUVWx8_SSE2 share a 16x8 helper.
- TransposeWx8_SSSE3 requires a multiple of 16 on all platforms.
- Byte transposes use a shared helper with dst_a / dst_b outputs so
  2, 3 and 4 channel variants can reuse the same shuffles.

Functions available:
Function                   rotate_gcc   rotate_win   rotate_win
                           64 bit       64 bit       32 bit
TransposeWx8_SSSE3         asm          intrinsics   intrinsics
TransposeUVWx8_SSE2        asm          intrinsics   intrinsics
TransposeWx16_AVX2         asm          intrinsics   intrinsics
TransposeUVWx16_AVX2       asm          intrinsics   intrinsics
Transpose4x4_32_SSE2       asm          intrinsics   intrinsics
Transpose4x4_32_AVX2       asm          intrinsics   intrinsics
TransposeWx16_AVX512BW     asm          intrinsics   -
TransposeUVWx16_AVX512BW   asm          intrinsics   -

32 bit x86 Linux clang on AMD Milan (Zen 3), ms
(LIBYUV_WIDTH=1280 LIBYUV_HEIGHT=720 LIBYUV_REPEAT=2000):
                     C      Before   After SSE2   After AVX2
I420Rotate90_Opt     944    321      322          220
NV12Rotate90_Opt     1412   935      315          232

Testing:
for w in 1 2 3 7 8 9 15 16 17 23 24 31 32 33 64 65 1279 1280; do
  for h in 1 7 8 15 16 17 24 31 32 33 719; do
    LIBYUV_WIDTH=$w LIBYUV_HEIGHT=$h out/rowwin/libyuv_unittest \
      --gtest_filter='*Rotate*:*Transpose*'
  done
done
Repeated with LIBYUV_DISABLE_AVX2=1, LIBYUV_DISABLE_AVX512BW=1, with
out/Release and out/Release_x86, under sde64 -skx for AVX512BW, and
with out/msan (is_msan = true) and out/rowwin_x86
(target_cpu = "x86", libyuv_enable_rowwin = true). Built out/android_x86
(target_os = "android", target_cpu = "x86"). Compiled rotate_win.cc
with g++ and clang++ -m32 -march=pentium3.

Bug: None
Change-Id: Ic70c4f0b7eb46b1b8522a1eba851dac5f506ec3e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8499394
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-10-01 20:39:30 -07:00

496 lines
22 KiB
C++

/*
* Copyright 2013 The LibYuv Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "libyuv/rotate_row.h"
#include "libyuv/row.h"
// This module is for 32 bit x86 with any compiler, Visual C 64 bit, and for
// clang with LIBYUV_ENABLE_ROWWIN, which is also enabled for MemorySanitizer.
#if !defined(LIBYUV_DISABLE_X86) && \
(defined(__i386__) || defined(_M_IX86) || \
((defined(__x86_64__) || defined(_M_X64)) && \
((defined(_MSC_VER) && !defined(__clang__)) || \
defined(LIBYUV_ENABLE_ROWWIN))))
#include <emmintrin.h>
#include <immintrin.h> // For AVX2 and AVX512 intrinsics
#if defined(_MSC_VER) && !defined(__clang__)
#include <intrin.h>
#endif
#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif
// Target attributes allow gcc and clang to build each function for its
// instruction set regardless of the baseline, which may lack SSE2 for 32 bit.
#if defined(__clang__) || defined(__GNUC__)
#define LIBYUV_TARGET_SSE2 __attribute__((target("sse2")))
#define LIBYUV_TARGET_AVX2 __attribute__((target("avx2")))
#define LIBYUV_TARGET_AVX512BW \
__attribute__((target("avx512bw,avx512vl,avx512f")))
#else
#define LIBYUV_TARGET_SSE2
#define LIBYUV_TARGET_AVX2
#define LIBYUV_TARGET_AVX512BW
#endif // defined(__clang__) || defined(__GNUC__)
#if defined(HAS_TRANSPOSEWX8_SSSE3) || defined(HAS_TRANSPOSEUVWX8_SSE2)
// Transpose 8 rows x 16 bytes with SSE2. Each output holds 2 columns x 8 rows.
// The low 8 bytes (even column) go to dst_a and the high 8 bytes (odd column)
// go to dst_b. Width is a multiple of 16 bytes.
LIBYUV_TARGET_SSE2
static void TransposeWx8_Byte_SSE2(const uint8_t* src,
int src_stride,
uint8_t* dst_a,
int dst_stride_a,
uint8_t* dst_b,
int dst_stride_b,
int byte_width) {
const ptrdiff_t s = src_stride;
const ptrdiff_t sa = dst_stride_a;
const ptrdiff_t sb = dst_stride_b;
while (byte_width > 0) {
__m128i r0 = _mm_loadu_si128((const __m128i*)(src));
__m128i r1 = _mm_loadu_si128((const __m128i*)(src + s));
__m128i r2 = _mm_loadu_si128((const __m128i*)(src + s * 2));
__m128i r3 = _mm_loadu_si128((const __m128i*)(src + s * 3));
__m128i r4 = _mm_loadu_si128((const __m128i*)(src + s * 4));
__m128i r5 = _mm_loadu_si128((const __m128i*)(src + s * 5));
__m128i r6 = _mm_loadu_si128((const __m128i*)(src + s * 6));
__m128i r7 = _mm_loadu_si128((const __m128i*)(src + s * 7));
// Bytes of row pairs. a0 is columns 0..7 of rows 0, 1.
__m128i a0 = _mm_unpacklo_epi8(r0, r1);
__m128i a1 = _mm_unpackhi_epi8(r0, r1);
__m128i a2 = _mm_unpacklo_epi8(r2, r3);
__m128i a3 = _mm_unpackhi_epi8(r2, r3);
__m128i a4 = _mm_unpacklo_epi8(r4, r5);
__m128i a5 = _mm_unpackhi_epi8(r4, r5);
__m128i a6 = _mm_unpacklo_epi8(r6, r7);
__m128i a7 = _mm_unpackhi_epi8(r6, r7);
// Words. b0 is columns 0..3 of rows 0..3.
__m128i b0 = _mm_unpacklo_epi16(a0, a2);
__m128i b1 = _mm_unpackhi_epi16(a0, a2);
__m128i b2 = _mm_unpacklo_epi16(a1, a3);
__m128i b3 = _mm_unpackhi_epi16(a1, a3);
__m128i b4 = _mm_unpacklo_epi16(a4, a6);
__m128i b5 = _mm_unpackhi_epi16(a4, a6);
__m128i b6 = _mm_unpacklo_epi16(a5, a7);
__m128i b7 = _mm_unpackhi_epi16(a5, a7);
// Dwords. c0 is columns 0, 1 of rows 0..7.
__m128i c0 = _mm_unpacklo_epi32(b0, b4);
__m128i c1 = _mm_unpackhi_epi32(b0, b4);
__m128i c2 = _mm_unpacklo_epi32(b1, b5);
__m128i c3 = _mm_unpackhi_epi32(b1, b5);
__m128i c4 = _mm_unpacklo_epi32(b2, b6);
__m128i c5 = _mm_unpackhi_epi32(b2, b6);
__m128i c6 = _mm_unpacklo_epi32(b3, b7);
__m128i c7 = _mm_unpackhi_epi32(b3, b7);
_mm_storel_epi64((__m128i*)(dst_a), c0);
_mm_storeh_pd((double*)(dst_b), _mm_castsi128_pd(c0));
_mm_storel_epi64((__m128i*)(dst_a + sa), c1);
_mm_storeh_pd((double*)(dst_b + sb), _mm_castsi128_pd(c1));
_mm_storel_epi64((__m128i*)(dst_a + sa * 2), c2);
_mm_storeh_pd((double*)(dst_b + sb * 2), _mm_castsi128_pd(c2));
_mm_storel_epi64((__m128i*)(dst_a + sa * 3), c3);
_mm_storeh_pd((double*)(dst_b + sb * 3), _mm_castsi128_pd(c3));
_mm_storel_epi64((__m128i*)(dst_a + sa * 4), c4);
_mm_storeh_pd((double*)(dst_b + sb * 4), _mm_castsi128_pd(c4));
_mm_storel_epi64((__m128i*)(dst_a + sa * 5), c5);
_mm_storeh_pd((double*)(dst_b + sb * 5), _mm_castsi128_pd(c5));
_mm_storel_epi64((__m128i*)(dst_a + sa * 6), c6);
_mm_storeh_pd((double*)(dst_b + sb * 6), _mm_castsi128_pd(c6));
_mm_storel_epi64((__m128i*)(dst_a + sa * 7), c7);
_mm_storeh_pd((double*)(dst_b + sb * 7), _mm_castsi128_pd(c7));
src += 16;
dst_a += sa * 8;
dst_b += sb * 8;
byte_width -= 16;
}
}
#endif // defined(HAS_TRANSPOSEWX8_SSSE3) || defined(HAS_TRANSPOSEUVWX8_SSE2)
#if defined(HAS_TRANSPOSEWX8_SSSE3)
// Transpose 16x8. Width is a multiple of 16.
LIBYUV_TARGET_SSE2
void TransposeWx8_SSSE3(const uint8_t* src,
int src_stride,
uint8_t* dst,
int dst_stride,
int width) {
TransposeWx8_Byte_SSE2(src, src_stride, dst, dst_stride * 2, dst + dst_stride,
dst_stride * 2, width);
}
#endif // defined(HAS_TRANSPOSEWX8_SSSE3)
#if defined(HAS_TRANSPOSEUVWX8_SSE2)
// Transpose UV 8x8. Width is a multiple of 8.
LIBYUV_TARGET_SSE2
void TransposeUVWx8_SSE2(const uint8_t* src,
int src_stride,
uint8_t* dst_a,
int dst_stride_a,
uint8_t* dst_b,
int dst_stride_b,
int width) {
TransposeWx8_Byte_SSE2(src, src_stride, dst_a, dst_stride_a, dst_b,
dst_stride_b, width * 2);
}
#endif // defined(HAS_TRANSPOSEUVWX8_SSE2)
#if defined(HAS_TRANSPOSEWX16_AVX2) || defined(HAS_TRANSPOSEUVWX16_AVX2)
// Load row r into lane 0 and row r + 8 into lane 1.
#define LOAD2ROWS_AVX2(p, s8) \
_mm256_inserti128_si256( \
_mm256_castsi128_si256(_mm_loadu_si128((const __m128i*)(p))), \
_mm_loadu_si128((const __m128i*)((p) + (s8))), 1)
// Transpose 16x16 bytes using 2 lanes of AVX2. Source row r is in lane r / 8
// of register r % 8. 3 unpack stages leave each lane with 2 columns x 8 rows,
// and vpermq joins the rows 0..7 and 8..15 halves. Lane 0 of each output is an
// even column for dst_a and lane 1 an odd column for dst_b.
// Width is a multiple of 16 bytes.
LIBYUV_TARGET_AVX2
static void TransposeWx16_Byte_AVX2(const uint8_t* src,
int src_stride,
uint8_t* dst_a,
int dst_stride_a,
uint8_t* dst_b,
int dst_stride_b,
int byte_width) {
const ptrdiff_t s = src_stride;
const ptrdiff_t sa = dst_stride_a;
const ptrdiff_t sb = dst_stride_b;
while (byte_width > 0) {
__m256i r0 = LOAD2ROWS_AVX2(src, s * 8);
__m256i r1 = LOAD2ROWS_AVX2(src + s, s * 8);
__m256i r2 = LOAD2ROWS_AVX2(src + s * 2, s * 8);
__m256i r3 = LOAD2ROWS_AVX2(src + s * 3, s * 8);
__m256i r4 = LOAD2ROWS_AVX2(src + s * 4, s * 8);
__m256i r5 = LOAD2ROWS_AVX2(src + s * 5, s * 8);
__m256i r6 = LOAD2ROWS_AVX2(src + s * 6, s * 8);
__m256i r7 = LOAD2ROWS_AVX2(src + s * 7, s * 8);
__m256i a0 = _mm256_unpacklo_epi8(r0, r1);
__m256i a1 = _mm256_unpackhi_epi8(r0, r1);
__m256i a2 = _mm256_unpacklo_epi8(r2, r3);
__m256i a3 = _mm256_unpackhi_epi8(r2, r3);
__m256i a4 = _mm256_unpacklo_epi8(r4, r5);
__m256i a5 = _mm256_unpackhi_epi8(r4, r5);
__m256i a6 = _mm256_unpacklo_epi8(r6, r7);
__m256i a7 = _mm256_unpackhi_epi8(r6, r7);
__m256i b0 = _mm256_unpacklo_epi16(a0, a2);
__m256i b1 = _mm256_unpackhi_epi16(a0, a2);
__m256i b2 = _mm256_unpacklo_epi16(a1, a3);
__m256i b3 = _mm256_unpackhi_epi16(a1, a3);
__m256i b4 = _mm256_unpacklo_epi16(a4, a6);
__m256i b5 = _mm256_unpackhi_epi16(a4, a6);
__m256i b6 = _mm256_unpacklo_epi16(a5, a7);
__m256i b7 = _mm256_unpackhi_epi16(a5, a7);
__m256i c0 = _mm256_permute4x64_epi64(_mm256_unpacklo_epi32(b0, b4), 0xd8);
__m256i c1 = _mm256_permute4x64_epi64(_mm256_unpackhi_epi32(b0, b4), 0xd8);
__m256i c2 = _mm256_permute4x64_epi64(_mm256_unpacklo_epi32(b1, b5), 0xd8);
__m256i c3 = _mm256_permute4x64_epi64(_mm256_unpackhi_epi32(b1, b5), 0xd8);
__m256i c4 = _mm256_permute4x64_epi64(_mm256_unpacklo_epi32(b2, b6), 0xd8);
__m256i c5 = _mm256_permute4x64_epi64(_mm256_unpackhi_epi32(b2, b6), 0xd8);
__m256i c6 = _mm256_permute4x64_epi64(_mm256_unpacklo_epi32(b3, b7), 0xd8);
__m256i c7 = _mm256_permute4x64_epi64(_mm256_unpackhi_epi32(b3, b7), 0xd8);
_mm_storeu_si128((__m128i*)(dst_a), _mm256_castsi256_si128(c0));
_mm_storeu_si128((__m128i*)(dst_b), _mm256_extracti128_si256(c0, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa), _mm256_castsi256_si128(c1));
_mm_storeu_si128((__m128i*)(dst_b + sb), _mm256_extracti128_si256(c1, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa * 2), _mm256_castsi256_si128(c2));
_mm_storeu_si128((__m128i*)(dst_b + sb * 2),
_mm256_extracti128_si256(c2, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa * 3), _mm256_castsi256_si128(c3));
_mm_storeu_si128((__m128i*)(dst_b + sb * 3),
_mm256_extracti128_si256(c3, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa * 4), _mm256_castsi256_si128(c4));
_mm_storeu_si128((__m128i*)(dst_b + sb * 4),
_mm256_extracti128_si256(c4, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa * 5), _mm256_castsi256_si128(c5));
_mm_storeu_si128((__m128i*)(dst_b + sb * 5),
_mm256_extracti128_si256(c5, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa * 6), _mm256_castsi256_si128(c6));
_mm_storeu_si128((__m128i*)(dst_b + sb * 6),
_mm256_extracti128_si256(c6, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa * 7), _mm256_castsi256_si128(c7));
_mm_storeu_si128((__m128i*)(dst_b + sb * 7),
_mm256_extracti128_si256(c7, 1));
src += 16;
dst_a += sa * 8;
dst_b += sb * 8;
byte_width -= 16;
}
_mm256_zeroupper();
}
#undef LOAD2ROWS_AVX2
#endif // defined(HAS_TRANSPOSEWX16_AVX2) || defined(HAS_TRANSPOSEUVWX16_AVX2)
#if defined(HAS_TRANSPOSEWX16_AVX2)
LIBYUV_TARGET_AVX2
void TransposeWx16_AVX2(const uint8_t* src,
int src_stride,
uint8_t* dst,
int dst_stride,
int width) {
TransposeWx16_Byte_AVX2(src, src_stride, dst, dst_stride * 2,
dst + dst_stride, dst_stride * 2, width);
}
#endif // defined(HAS_TRANSPOSEWX16_AVX2)
#if defined(HAS_TRANSPOSEUVWX16_AVX2)
LIBYUV_TARGET_AVX2
void TransposeUVWx16_AVX2(const uint8_t* src,
int src_stride,
uint8_t* dst_a,
int dst_stride_a,
uint8_t* dst_b,
int dst_stride_b,
int width) {
TransposeWx16_Byte_AVX2(src, src_stride, dst_a, dst_stride_a, dst_b,
dst_stride_b, width * 2);
}
#endif // defined(HAS_TRANSPOSEUVWX16_AVX2)
#if defined(HAS_TRANSPOSEWX16_AVX512BW) || defined(HAS_TRANSPOSEUVWX16_AVX512BW)
// Dword permutes to gather 16 rows of a column from 4 lanes.
static const uint32_t kPermdTranspose_AVX512BW[32] = {
0, 4, 8, 12, 2, 6, 10, 14, 16, 20, 24, 28, 18, 22, 26, 30,
1, 5, 9, 13, 3, 7, 11, 15, 17, 21, 25, 29, 19, 23, 27, 31};
// Load 16 masked bytes from rows p, p + s4, p + s4 * 2, p + s4 * 3 into
// lanes 0..3.
#define LOAD4ROWS_AVX512BW(p, s4, k) \
_mm512_inserti32x4( \
_mm512_inserti32x4( \
_mm512_inserti32x4( \
_mm512_castsi128_si512(_mm_maskz_loadu_epi8(k, (p))), \
_mm_maskz_loadu_epi8(k, (p) + (s4)), 1), \
_mm_maskz_loadu_epi8(k, (p) + (s4) * 2), 2), \
_mm_maskz_loadu_epi8(k, (p) + (s4) * 3), 3)
// Store 16 destination rows. Lane n of o0/o2 is for dst_a and lane n of
// o1/o3 is for dst_b.
LIBYUV_TARGET_AVX512BW
static void Store16x16_AVX512BW(__m512i o0,
__m512i o1,
__m512i o2,
__m512i o3,
uint8_t* dst_a,
ptrdiff_t sa,
uint8_t* dst_b,
ptrdiff_t sb) {
_mm_storeu_si128((__m128i*)(dst_a), _mm512_castsi512_si128(o0));
_mm_storeu_si128((__m128i*)(dst_b), _mm512_castsi512_si128(o1));
_mm_storeu_si128((__m128i*)(dst_a + sa), _mm512_extracti32x4_epi32(o0, 1));
_mm_storeu_si128((__m128i*)(dst_b + sb), _mm512_extracti32x4_epi32(o1, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa * 2), _mm512_castsi512_si128(o2));
_mm_storeu_si128((__m128i*)(dst_b + sb * 2), _mm512_castsi512_si128(o3));
_mm_storeu_si128((__m128i*)(dst_a + sa * 3),
_mm512_extracti32x4_epi32(o2, 1));
_mm_storeu_si128((__m128i*)(dst_b + sb * 3),
_mm512_extracti32x4_epi32(o3, 1));
_mm_storeu_si128((__m128i*)(dst_a + sa * 4),
_mm512_extracti32x4_epi32(o0, 2));
_mm_storeu_si128((__m128i*)(dst_b + sb * 4),
_mm512_extracti32x4_epi32(o1, 2));
_mm_storeu_si128((__m128i*)(dst_a + sa * 5),
_mm512_extracti32x4_epi32(o0, 3));
_mm_storeu_si128((__m128i*)(dst_b + sb * 5),
_mm512_extracti32x4_epi32(o1, 3));
_mm_storeu_si128((__m128i*)(dst_a + sa * 6),
_mm512_extracti32x4_epi32(o2, 2));
_mm_storeu_si128((__m128i*)(dst_b + sb * 6),
_mm512_extracti32x4_epi32(o3, 2));
_mm_storeu_si128((__m128i*)(dst_a + sa * 7),
_mm512_extracti32x4_epi32(o2, 3));
_mm_storeu_si128((__m128i*)(dst_b + sb * 7),
_mm512_extracti32x4_epi32(o3, 3));
}
// Transpose 16x16 bytes using 4 lanes of AVX512BW with tail masking.
// Source row r is in lane r / 4 of register r % 4.
// Can be used for 8-bit planar transpose (dst_a = even rows, dst_b = odd rows)
// or 16-bit UV split transpose (dst_a = U plane, dst_b = V plane).
// TODO(fbarchard): Consider removing in favor of TransposeWx16_Byte_AVX2,
// which is within 10% of AVX512BW on most CPUs.
LIBYUV_TARGET_AVX512BW
static void TransposeWx16_Byte_AVX512BW(const uint8_t* src,
int src_stride,
uint8_t* dst_a,
int dst_stride_a,
uint8_t* dst_b,
int dst_stride_b,
int byte_width) {
const ptrdiff_t s = src_stride;
const ptrdiff_t sa = dst_stride_a;
const ptrdiff_t sb = dst_stride_b;
const __m512i perm0 = _mm512_loadu_si512(kPermdTranspose_AVX512BW);
const __m512i perm1 = _mm512_loadu_si512(kPermdTranspose_AVX512BW + 16);
while (byte_width > 0) {
const int n = byte_width < 16 ? byte_width : 16;
const __mmask16 k = (__mmask16)((1u << n) - 1);
__m512i z0 = LOAD4ROWS_AVX512BW(src, s * 4, k);
__m512i z1 = LOAD4ROWS_AVX512BW(src + s, s * 4, k);
__m512i z2 = LOAD4ROWS_AVX512BW(src + s * 2, s * 4, k);
__m512i z3 = LOAD4ROWS_AVX512BW(src + s * 3, s * 4, k);
__m512i a0 = _mm512_unpacklo_epi8(z0, z1);
__m512i a1 = _mm512_unpackhi_epi8(z0, z1);
__m512i a2 = _mm512_unpacklo_epi8(z2, z3);
__m512i a3 = _mm512_unpackhi_epi8(z2, z3);
__m512i b0 = _mm512_unpacklo_epi16(a0, a2);
__m512i b1 = _mm512_unpackhi_epi16(a0, a2);
__m512i b2 = _mm512_unpacklo_epi16(a1, a3);
__m512i b3 = _mm512_unpackhi_epi16(a1, a3);
__m512i o0 = _mm512_permutex2var_epi32(b0, perm0, b2);
__m512i o1 = _mm512_permutex2var_epi32(b0, perm1, b2);
__m512i o2 = _mm512_permutex2var_epi32(b1, perm0, b3);
__m512i o3 = _mm512_permutex2var_epi32(b1, perm1, b3);
if (n == 16) {
Store16x16_AVX512BW(o0, o1, o2, o3, dst_a, sa, dst_b, sb);
dst_a += sa * 8;
dst_b += sb * 8;
} else {
// Remainder: 1 to 15 bytes. Store 1 destination row per byte.
SIMD_ALIGNED(uint8_t temp[16 * 16]);
int i;
Store16x16_AVX512BW(o0, o1, o2, o3, temp, 32, temp + 16, 32);
for (i = 0; i < n; ++i) {
uint8_t* dst = (i & 1) ? dst_b + sb * (i >> 1) : dst_a + sa * (i >> 1);
_mm_storeu_si128((__m128i*)dst,
_mm_load_si128((const __m128i*)(temp + i * 16)));
}
}
src += 16;
byte_width -= 16;
}
_mm256_zeroupper();
}
#undef LOAD4ROWS_AVX512BW
#endif // defined(HAS_TRANSPOSEWX16_AVX512BW) ||
// defined(HAS_TRANSPOSEUVWX16_AVX512BW)
#if defined(HAS_TRANSPOSEWX16_AVX512BW)
LIBYUV_TARGET_AVX512BW
void TransposeWx16_AVX512BW(const uint8_t* src,
int src_stride,
uint8_t* dst,
int dst_stride,
int width) {
TransposeWx16_Byte_AVX512BW(src, src_stride, dst, dst_stride * 2,
dst + (width > 1 ? dst_stride : 0),
dst_stride * 2, width);
}
#endif // defined(HAS_TRANSPOSEWX16_AVX512BW)
#if defined(HAS_TRANSPOSEUVWX16_AVX512BW)
LIBYUV_TARGET_AVX512BW
void TransposeUVWx16_AVX512BW(const uint8_t* src,
int src_stride,
uint8_t* dst_a,
int dst_stride_a,
uint8_t* dst_b,
int dst_stride_b,
int width) {
TransposeWx16_Byte_AVX512BW(src, src_stride, dst_a, dst_stride_a, dst_b,
dst_stride_b, width * 2);
}
#endif // defined(HAS_TRANSPOSEUVWX16_AVX512BW)
#if defined(HAS_TRANSPOSE4X4_32_SSE2)
// Transpose 32 bit values (ARGB). Read a column of 4 pixels, write a row.
LIBYUV_TARGET_SSE2
void Transpose4x4_32_SSE2(const uint8_t* src,
int src_stride,
uint8_t* dst,
int dst_stride,
int width) {
const ptrdiff_t s = src_stride;
const ptrdiff_t d = dst_stride;
while (width > 0) {
__m128i r0 = _mm_loadu_si128((const __m128i*)(src)); // a b c d
__m128i r1 = _mm_loadu_si128((const __m128i*)(src + s)); // e f g h
__m128i r2 = _mm_loadu_si128((const __m128i*)(src + s * 2)); // i j k l
__m128i r3 = _mm_loadu_si128((const __m128i*)(src + s * 3)); // m n o p
__m128i t0 = _mm_unpacklo_epi32(r0, r1); // a e b f
__m128i t1 = _mm_unpacklo_epi32(r2, r3); // i m j n
__m128i t2 = _mm_unpackhi_epi32(r0, r1); // c g d h
__m128i t3 = _mm_unpackhi_epi32(r2, r3); // k o l p
_mm_storeu_si128((__m128i*)(dst), _mm_unpacklo_epi64(t0, t1)); // a e i m
_mm_storeu_si128((__m128i*)(dst + d), _mm_unpackhi_epi64(t0, t1));
_mm_storeu_si128((__m128i*)(dst + d * 2), _mm_unpacklo_epi64(t2, t3));
_mm_storeu_si128((__m128i*)(dst + d * 3), _mm_unpackhi_epi64(t2, t3));
src += s * 4;
dst += 16;
width -= 4;
}
}
#endif // defined(HAS_TRANSPOSE4X4_32_SSE2)
#if defined(HAS_TRANSPOSE4X4_32_AVX2)
// Transpose 32 bit values (ARGB). Read a column of 8 pixels, write a row.
LIBYUV_TARGET_AVX2
void Transpose4x4_32_AVX2(const uint8_t* src,
int src_stride,
uint8_t* dst,
int dst_stride,
int width) {
const ptrdiff_t s = src_stride;
const ptrdiff_t d = dst_stride;
while (width > 0) {
__m256i r0 = _mm256_inserti128_si256(
_mm256_castsi128_si256(_mm_loadu_si128((const __m128i*)(src))),
_mm_loadu_si128((const __m128i*)(src + s * 4)), 1);
__m256i r1 = _mm256_inserti128_si256(
_mm256_castsi128_si256(_mm_loadu_si128((const __m128i*)(src + s))),
_mm_loadu_si128((const __m128i*)(src + s * 5)), 1);
__m256i r2 = _mm256_inserti128_si256(
_mm256_castsi128_si256(_mm_loadu_si128((const __m128i*)(src + s * 2))),
_mm_loadu_si128((const __m128i*)(src + s * 6)), 1);
__m256i r3 = _mm256_inserti128_si256(
_mm256_castsi128_si256(_mm_loadu_si128((const __m128i*)(src + s * 3))),
_mm_loadu_si128((const __m128i*)(src + s * 7)), 1);
__m256i t0 = _mm256_unpacklo_epi32(r0, r1); // a e b f
__m256i t1 = _mm256_unpacklo_epi32(r2, r3); // i m j n
__m256i t2 = _mm256_unpackhi_epi32(r0, r1); // c g d h
__m256i t3 = _mm256_unpackhi_epi32(r2, r3); // k o l p
_mm256_storeu_si256((__m256i*)(dst), _mm256_unpacklo_epi64(t0, t1));
_mm256_storeu_si256((__m256i*)(dst + d), _mm256_unpackhi_epi64(t0, t1));
_mm256_storeu_si256((__m256i*)(dst + d * 2), _mm256_unpacklo_epi64(t2, t3));
_mm256_storeu_si256((__m256i*)(dst + d * 3), _mm256_unpackhi_epi64(t2, t3));
src += s * 8;
dst += 32;
width -= 8;
}
_mm256_zeroupper();
}
#endif // defined(HAS_TRANSPOSE4X4_32_AVX2)
#ifdef __cplusplus
} // extern "C"
} // namespace libyuv
#endif
#endif // !defined(LIBYUV_DISABLE_X86) && (x86 or x64) &&
// (Visual C or LIBYUV_ENABLE_ROWWIN)