diff options
Diffstat (limited to 'third_party/aom/aom_dsp/x86/variance_sse2.c')
-rw-r--r-- | third_party/aom/aom_dsp/x86/variance_sse2.c | 690 |
1 files changed, 690 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/variance_sse2.c b/third_party/aom/aom_dsp/x86/variance_sse2.c new file mode 100644 index 000000000..d9563aa7f --- /dev/null +++ b/third_party/aom/aom_dsp/x86/variance_sse2.c @@ -0,0 +1,690 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include <assert.h> +#include <emmintrin.h> // SSE2 + +#include "./aom_config.h" +#include "./aom_dsp_rtcd.h" + +#include "aom_ports/mem.h" + +typedef void (*getNxMvar_fn_t)(const unsigned char *src, int src_stride, + const unsigned char *ref, int ref_stride, + unsigned int *sse, int *sum); + +unsigned int aom_get_mb_ss_sse2(const int16_t *src) { + __m128i vsum = _mm_setzero_si128(); + int i; + + for (i = 0; i < 32; ++i) { + const __m128i v = _mm_loadu_si128((const __m128i *)src); + vsum = _mm_add_epi32(vsum, _mm_madd_epi16(v, v)); + src += 8; + } + + vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 8)); + vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 4)); + return _mm_cvtsi128_si32(vsum); +} + +#define READ64(p, stride, i) \ + _mm_unpacklo_epi8( \ + _mm_cvtsi32_si128(*(const uint32_t *)(p + i * stride)), \ + _mm_cvtsi32_si128(*(const uint32_t *)(p + (i + 1) * stride))) + +static void get4x4var_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse, int *sum) { + const __m128i zero = _mm_setzero_si128(); + const __m128i src0 = _mm_unpacklo_epi8(READ64(src, src_stride, 0), zero); + const __m128i src1 = _mm_unpacklo_epi8(READ64(src, src_stride, 2), zero); + const __m128i ref0 = _mm_unpacklo_epi8(READ64(ref, ref_stride, 0), zero); + const __m128i ref1 = _mm_unpacklo_epi8(READ64(ref, ref_stride, 2), zero); + const __m128i diff0 = _mm_sub_epi16(src0, ref0); + const __m128i diff1 = _mm_sub_epi16(src1, ref1); + + // sum + __m128i vsum = _mm_add_epi16(diff0, diff1); + vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8)); + vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 4)); + vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 2)); + *sum = (int16_t)_mm_extract_epi16(vsum, 0); + + // sse + vsum = + _mm_add_epi32(_mm_madd_epi16(diff0, diff0), _mm_madd_epi16(diff1, diff1)); + vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 8)); + vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 4)); + *sse = _mm_cvtsi128_si32(vsum); +} + +void aom_get8x8var_sse2(const uint8_t *src, int src_stride, const uint8_t *ref, + int ref_stride, unsigned int *sse, int *sum) { + const __m128i zero = _mm_setzero_si128(); + __m128i vsum = _mm_setzero_si128(); + __m128i vsse = _mm_setzero_si128(); + int i; + + for (i = 0; i < 8; i += 2) { + const __m128i src0 = _mm_unpacklo_epi8( + _mm_loadl_epi64((const __m128i *)(src + i * src_stride)), zero); + const __m128i ref0 = _mm_unpacklo_epi8( + _mm_loadl_epi64((const __m128i *)(ref + i * ref_stride)), zero); + const __m128i diff0 = _mm_sub_epi16(src0, ref0); + + const __m128i src1 = _mm_unpacklo_epi8( + _mm_loadl_epi64((const __m128i *)(src + (i + 1) * src_stride)), zero); + const __m128i ref1 = _mm_unpacklo_epi8( + _mm_loadl_epi64((const __m128i *)(ref + (i + 1) * ref_stride)), zero); + const __m128i diff1 = _mm_sub_epi16(src1, ref1); + + vsum = _mm_add_epi16(vsum, diff0); + vsum = _mm_add_epi16(vsum, diff1); + vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff0, diff0)); + vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff1, diff1)); + } + + // sum + vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8)); + vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 4)); + vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 2)); + *sum = (int16_t)_mm_extract_epi16(vsum, 0); + + // sse + vsse = _mm_add_epi32(vsse, _mm_srli_si128(vsse, 8)); + vsse = _mm_add_epi32(vsse, _mm_srli_si128(vsse, 4)); + *sse = _mm_cvtsi128_si32(vsse); +} + +void aom_get16x16var_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, unsigned int *sse, + int *sum) { + const __m128i zero = _mm_setzero_si128(); + __m128i vsum = _mm_setzero_si128(); + __m128i vsse = _mm_setzero_si128(); + int i; + + for (i = 0; i < 16; ++i) { + const __m128i s = _mm_loadu_si128((const __m128i *)src); + const __m128i r = _mm_loadu_si128((const __m128i *)ref); + + const __m128i src0 = _mm_unpacklo_epi8(s, zero); + const __m128i ref0 = _mm_unpacklo_epi8(r, zero); + const __m128i diff0 = _mm_sub_epi16(src0, ref0); + + const __m128i src1 = _mm_unpackhi_epi8(s, zero); + const __m128i ref1 = _mm_unpackhi_epi8(r, zero); + const __m128i diff1 = _mm_sub_epi16(src1, ref1); + + vsum = _mm_add_epi16(vsum, diff0); + vsum = _mm_add_epi16(vsum, diff1); + vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff0, diff0)); + vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff1, diff1)); + + src += src_stride; + ref += ref_stride; + } + + // sum + vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8)); + vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 4)); + *sum = + (int16_t)_mm_extract_epi16(vsum, 0) + (int16_t)_mm_extract_epi16(vsum, 1); + + // sse + vsse = _mm_add_epi32(vsse, _mm_srli_si128(vsse, 8)); + vsse = _mm_add_epi32(vsse, _mm_srli_si128(vsse, 4)); + *sse = _mm_cvtsi128_si32(vsse); +} + +static void variance_sse2(const unsigned char *src, int src_stride, + const unsigned char *ref, int ref_stride, int w, + int h, unsigned int *sse, int *sum, + getNxMvar_fn_t var_fn, int block_size) { + int i, j; + + *sse = 0; + *sum = 0; + + for (i = 0; i < h; i += block_size) { + for (j = 0; j < w; j += block_size) { + unsigned int sse0; + int sum0; + var_fn(src + src_stride * i + j, src_stride, ref + ref_stride * i + j, + ref_stride, &sse0, &sum0); + *sse += sse0; + *sum += sum0; + } + } +} + +unsigned int aom_variance4x4_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + get4x4var_sse2(src, src_stride, ref, ref_stride, sse, &sum); + assert(sum <= 255 * 4 * 4); + assert(sum >= -255 * 4 * 4); + return *sse - ((sum * sum) >> 4); +} + +unsigned int aom_variance8x4_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 8, 4, sse, &sum, + get4x4var_sse2, 4); + assert(sum <= 255 * 8 * 4); + assert(sum >= -255 * 8 * 4); + return *sse - ((sum * sum) >> 5); +} + +unsigned int aom_variance4x8_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 4, 8, sse, &sum, + get4x4var_sse2, 4); + assert(sum <= 255 * 8 * 4); + assert(sum >= -255 * 8 * 4); + return *sse - ((sum * sum) >> 5); +} + +unsigned int aom_variance8x8_sse2(const unsigned char *src, int src_stride, + const unsigned char *ref, int ref_stride, + unsigned int *sse) { + int sum; + aom_get8x8var_sse2(src, src_stride, ref, ref_stride, sse, &sum); + assert(sum <= 255 * 8 * 8); + assert(sum >= -255 * 8 * 8); + return *sse - ((sum * sum) >> 6); +} + +unsigned int aom_variance16x8_sse2(const unsigned char *src, int src_stride, + const unsigned char *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 16, 8, sse, &sum, + aom_get8x8var_sse2, 8); + assert(sum <= 255 * 16 * 8); + assert(sum >= -255 * 16 * 8); + return *sse - ((sum * sum) >> 7); +} + +unsigned int aom_variance8x16_sse2(const unsigned char *src, int src_stride, + const unsigned char *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 8, 16, sse, &sum, + aom_get8x8var_sse2, 8); + assert(sum <= 255 * 16 * 8); + assert(sum >= -255 * 16 * 8); + return *sse - ((sum * sum) >> 7); +} + +unsigned int aom_variance16x16_sse2(const unsigned char *src, int src_stride, + const unsigned char *ref, int ref_stride, + unsigned int *sse) { + int sum; + aom_get16x16var_sse2(src, src_stride, ref, ref_stride, sse, &sum); + assert(sum <= 255 * 16 * 16); + assert(sum >= -255 * 16 * 16); + return *sse - ((uint32_t)((int64_t)sum * sum) >> 8); +} + +unsigned int aom_variance32x32_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 32, 32, sse, &sum, + aom_get16x16var_sse2, 16); + assert(sum <= 255 * 32 * 32); + assert(sum >= -255 * 32 * 32); + return *sse - (unsigned int)(((int64_t)sum * sum) >> 10); +} + +unsigned int aom_variance32x16_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 32, 16, sse, &sum, + aom_get16x16var_sse2, 16); + assert(sum <= 255 * 32 * 16); + assert(sum >= -255 * 32 * 16); + return *sse - (unsigned int)(((int64_t)sum * sum) >> 9); +} + +unsigned int aom_variance16x32_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 16, 32, sse, &sum, + aom_get16x16var_sse2, 16); + assert(sum <= 255 * 32 * 16); + assert(sum >= -255 * 32 * 16); + return *sse - (unsigned int)(((int64_t)sum * sum) >> 9); +} + +unsigned int aom_variance64x64_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 64, 64, sse, &sum, + aom_get16x16var_sse2, 16); + assert(sum <= 255 * 64 * 64); + assert(sum >= -255 * 64 * 64); + return *sse - (unsigned int)(((int64_t)sum * sum) >> 12); +} + +unsigned int aom_variance64x32_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 64, 32, sse, &sum, + aom_get16x16var_sse2, 16); + assert(sum <= 255 * 64 * 32); + assert(sum >= -255 * 64 * 32); + return *sse - (unsigned int)(((int64_t)sum * sum) >> 11); +} + +unsigned int aom_variance32x64_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + int sum; + variance_sse2(src, src_stride, ref, ref_stride, 32, 64, sse, &sum, + aom_get16x16var_sse2, 16); + assert(sum <= 255 * 64 * 32); + assert(sum >= -255 * 64 * 32); + return *sse - (unsigned int)(((int64_t)sum * sum) >> 11); +} + +unsigned int aom_mse8x8_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + aom_variance8x8_sse2(src, src_stride, ref, ref_stride, sse); + return *sse; +} + +unsigned int aom_mse8x16_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + aom_variance8x16_sse2(src, src_stride, ref, ref_stride, sse); + return *sse; +} + +unsigned int aom_mse16x8_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + aom_variance16x8_sse2(src, src_stride, ref, ref_stride, sse); + return *sse; +} + +unsigned int aom_mse16x16_sse2(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + unsigned int *sse) { + aom_variance16x16_sse2(src, src_stride, ref, ref_stride, sse); + return *sse; +} + +// The 2 unused parameters are place holders for PIC enabled build. +// These definitions are for functions defined in subpel_variance.asm +#define DECL(w, opt) \ + int aom_sub_pixel_variance##w##xh_##opt( \ + const uint8_t *src, ptrdiff_t src_stride, int x_offset, int y_offset, \ + const uint8_t *dst, ptrdiff_t dst_stride, int height, unsigned int *sse, \ + void *unused0, void *unused) +#define DECLS(opt1, opt2) \ + DECL(4, opt1); \ + DECL(8, opt1); \ + DECL(16, opt1) + +DECLS(sse2, sse2); +DECLS(ssse3, ssse3); +#undef DECLS +#undef DECL + +#define FN(w, h, wf, wlog2, hlog2, opt, cast_prod, cast) \ + unsigned int aom_sub_pixel_variance##w##x##h##_##opt( \ + const uint8_t *src, int src_stride, int x_offset, int y_offset, \ + const uint8_t *dst, int dst_stride, unsigned int *sse_ptr) { \ + unsigned int sse; \ + int se = aom_sub_pixel_variance##wf##xh_##opt(src, src_stride, x_offset, \ + y_offset, dst, dst_stride, \ + h, &sse, NULL, NULL); \ + if (w > wf) { \ + unsigned int sse2; \ + int se2 = aom_sub_pixel_variance##wf##xh_##opt( \ + src + 16, src_stride, x_offset, y_offset, dst + 16, dst_stride, h, \ + &sse2, NULL, NULL); \ + se += se2; \ + sse += sse2; \ + if (w > wf * 2) { \ + se2 = aom_sub_pixel_variance##wf##xh_##opt( \ + src + 32, src_stride, x_offset, y_offset, dst + 32, dst_stride, h, \ + &sse2, NULL, NULL); \ + se += se2; \ + sse += sse2; \ + se2 = aom_sub_pixel_variance##wf##xh_##opt( \ + src + 48, src_stride, x_offset, y_offset, dst + 48, dst_stride, h, \ + &sse2, NULL, NULL); \ + se += se2; \ + sse += sse2; \ + } \ + } \ + *sse_ptr = sse; \ + return sse - (unsigned int)(cast_prod(cast se * se) >> (wlog2 + hlog2)); \ + } + +#define FNS(opt1, opt2) \ + FN(64, 64, 16, 6, 6, opt1, (int64_t), (int64_t)); \ + FN(64, 32, 16, 6, 5, opt1, (int64_t), (int64_t)); \ + FN(32, 64, 16, 5, 6, opt1, (int64_t), (int64_t)); \ + FN(32, 32, 16, 5, 5, opt1, (int64_t), (int64_t)); \ + FN(32, 16, 16, 5, 4, opt1, (int64_t), (int64_t)); \ + FN(16, 32, 16, 4, 5, opt1, (int64_t), (int64_t)); \ + FN(16, 16, 16, 4, 4, opt1, (uint32_t), (int64_t)); \ + FN(16, 8, 16, 4, 3, opt1, (int32_t), (int32_t)); \ + FN(8, 16, 8, 3, 4, opt1, (int32_t), (int32_t)); \ + FN(8, 8, 8, 3, 3, opt1, (int32_t), (int32_t)); \ + FN(8, 4, 8, 3, 2, opt1, (int32_t), (int32_t)); \ + FN(4, 8, 4, 2, 3, opt1, (int32_t), (int32_t)); \ + FN(4, 4, 4, 2, 2, opt1, (int32_t), (int32_t)) + +FNS(sse2, sse2); +FNS(ssse3, ssse3); + +#undef FNS +#undef FN + +// The 2 unused parameters are place holders for PIC enabled build. +#define DECL(w, opt) \ + int aom_sub_pixel_avg_variance##w##xh_##opt( \ + const uint8_t *src, ptrdiff_t src_stride, int x_offset, int y_offset, \ + const uint8_t *dst, ptrdiff_t dst_stride, const uint8_t *sec, \ + ptrdiff_t sec_stride, int height, unsigned int *sse, void *unused0, \ + void *unused) +#define DECLS(opt1, opt2) \ + DECL(4, opt1); \ + DECL(8, opt1); \ + DECL(16, opt1) + +DECLS(sse2, sse2); +DECLS(ssse3, ssse3); +#undef DECL +#undef DECLS + +#define FN(w, h, wf, wlog2, hlog2, opt, cast_prod, cast) \ + unsigned int aom_sub_pixel_avg_variance##w##x##h##_##opt( \ + const uint8_t *src, int src_stride, int x_offset, int y_offset, \ + const uint8_t *dst, int dst_stride, unsigned int *sseptr, \ + const uint8_t *sec) { \ + unsigned int sse; \ + int se = aom_sub_pixel_avg_variance##wf##xh_##opt( \ + src, src_stride, x_offset, y_offset, dst, dst_stride, sec, w, h, &sse, \ + NULL, NULL); \ + if (w > wf) { \ + unsigned int sse2; \ + int se2 = aom_sub_pixel_avg_variance##wf##xh_##opt( \ + src + 16, src_stride, x_offset, y_offset, dst + 16, dst_stride, \ + sec + 16, w, h, &sse2, NULL, NULL); \ + se += se2; \ + sse += sse2; \ + if (w > wf * 2) { \ + se2 = aom_sub_pixel_avg_variance##wf##xh_##opt( \ + src + 32, src_stride, x_offset, y_offset, dst + 32, dst_stride, \ + sec + 32, w, h, &sse2, NULL, NULL); \ + se += se2; \ + sse += sse2; \ + se2 = aom_sub_pixel_avg_variance##wf##xh_##opt( \ + src + 48, src_stride, x_offset, y_offset, dst + 48, dst_stride, \ + sec + 48, w, h, &sse2, NULL, NULL); \ + se += se2; \ + sse += sse2; \ + } \ + } \ + *sseptr = sse; \ + return sse - (unsigned int)(cast_prod(cast se * se) >> (wlog2 + hlog2)); \ + } + +#define FNS(opt1, opt2) \ + FN(64, 64, 16, 6, 6, opt1, (int64_t), (int64_t)); \ + FN(64, 32, 16, 6, 5, opt1, (int64_t), (int64_t)); \ + FN(32, 64, 16, 5, 6, opt1, (int64_t), (int64_t)); \ + FN(32, 32, 16, 5, 5, opt1, (int64_t), (int64_t)); \ + FN(32, 16, 16, 5, 4, opt1, (int64_t), (int64_t)); \ + FN(16, 32, 16, 4, 5, opt1, (int64_t), (int64_t)); \ + FN(16, 16, 16, 4, 4, opt1, (uint32_t), (int64_t)); \ + FN(16, 8, 16, 4, 3, opt1, (uint32_t), (int32_t)); \ + FN(8, 16, 8, 3, 4, opt1, (uint32_t), (int32_t)); \ + FN(8, 8, 8, 3, 3, opt1, (uint32_t), (int32_t)); \ + FN(8, 4, 8, 3, 2, opt1, (uint32_t), (int32_t)); \ + FN(4, 8, 4, 2, 3, opt1, (uint32_t), (int32_t)); \ + FN(4, 4, 4, 2, 2, opt1, (uint32_t), (int32_t)) + +FNS(sse2, sse); +FNS(ssse3, ssse3); + +#undef FNS +#undef FN + +void aom_upsampled_pred_sse2(uint8_t *comp_pred, int width, int height, + const uint8_t *ref, int ref_stride) { + int i, j; + int stride = ref_stride << 3; + + if (width >= 16) { + // read 16 points at one time + for (i = 0; i < height; i++) { + for (j = 0; j < width; j += 16) { + __m128i s0 = _mm_loadu_si128((const __m128i *)ref); + __m128i s1 = _mm_loadu_si128((const __m128i *)(ref + 16)); + __m128i s2 = _mm_loadu_si128((const __m128i *)(ref + 32)); + __m128i s3 = _mm_loadu_si128((const __m128i *)(ref + 48)); + __m128i s4 = _mm_loadu_si128((const __m128i *)(ref + 64)); + __m128i s5 = _mm_loadu_si128((const __m128i *)(ref + 80)); + __m128i s6 = _mm_loadu_si128((const __m128i *)(ref + 96)); + __m128i s7 = _mm_loadu_si128((const __m128i *)(ref + 112)); + __m128i t0, t1, t2, t3; + + t0 = _mm_unpacklo_epi8(s0, s1); + s1 = _mm_unpackhi_epi8(s0, s1); + t1 = _mm_unpacklo_epi8(s2, s3); + s3 = _mm_unpackhi_epi8(s2, s3); + t2 = _mm_unpacklo_epi8(s4, s5); + s5 = _mm_unpackhi_epi8(s4, s5); + t3 = _mm_unpacklo_epi8(s6, s7); + s7 = _mm_unpackhi_epi8(s6, s7); + + s0 = _mm_unpacklo_epi8(t0, s1); + s2 = _mm_unpacklo_epi8(t1, s3); + s4 = _mm_unpacklo_epi8(t2, s5); + s6 = _mm_unpacklo_epi8(t3, s7); + s0 = _mm_unpacklo_epi32(s0, s2); + s4 = _mm_unpacklo_epi32(s4, s6); + s0 = _mm_unpacklo_epi64(s0, s4); + + _mm_storeu_si128((__m128i *)(comp_pred), s0); + comp_pred += 16; + ref += 16 * 8; + } + ref += stride - (width << 3); + } + } else if (width >= 8) { + // read 8 points at one time + for (i = 0; i < height; i++) { + for (j = 0; j < width; j += 8) { + __m128i s0 = _mm_loadu_si128((const __m128i *)ref); + __m128i s1 = _mm_loadu_si128((const __m128i *)(ref + 16)); + __m128i s2 = _mm_loadu_si128((const __m128i *)(ref + 32)); + __m128i s3 = _mm_loadu_si128((const __m128i *)(ref + 48)); + __m128i t0, t1; + + t0 = _mm_unpacklo_epi8(s0, s1); + s1 = _mm_unpackhi_epi8(s0, s1); + t1 = _mm_unpacklo_epi8(s2, s3); + s3 = _mm_unpackhi_epi8(s2, s3); + + s0 = _mm_unpacklo_epi8(t0, s1); + s2 = _mm_unpacklo_epi8(t1, s3); + s0 = _mm_unpacklo_epi32(s0, s2); + + _mm_storel_epi64((__m128i *)(comp_pred), s0); + comp_pred += 8; + ref += 8 * 8; + } + ref += stride - (width << 3); + } + } else { + // read 4 points at one time + for (i = 0; i < height; i++) { + for (j = 0; j < width; j += 4) { + __m128i s0 = _mm_loadu_si128((const __m128i *)ref); + __m128i s1 = _mm_loadu_si128((const __m128i *)(ref + 16)); + __m128i t0; + + t0 = _mm_unpacklo_epi8(s0, s1); + s1 = _mm_unpackhi_epi8(s0, s1); + s0 = _mm_unpacklo_epi8(t0, s1); + + *(int *)comp_pred = _mm_cvtsi128_si32(s0); + comp_pred += 4; + ref += 4 * 8; + } + ref += stride - (width << 3); + } + } +} + +void aom_comp_avg_upsampled_pred_sse2(uint8_t *comp_pred, const uint8_t *pred, + int width, int height, const uint8_t *ref, + int ref_stride) { + const __m128i zero = _mm_set1_epi16(0); + const __m128i one = _mm_set1_epi16(1); + int i, j; + int stride = ref_stride << 3; + + if (width >= 16) { + // read 16 points at one time + for (i = 0; i < height; i++) { + for (j = 0; j < width; j += 16) { + __m128i s0 = _mm_loadu_si128((const __m128i *)ref); + __m128i s1 = _mm_loadu_si128((const __m128i *)(ref + 16)); + __m128i s2 = _mm_loadu_si128((const __m128i *)(ref + 32)); + __m128i s3 = _mm_loadu_si128((const __m128i *)(ref + 48)); + __m128i s4 = _mm_loadu_si128((const __m128i *)(ref + 64)); + __m128i s5 = _mm_loadu_si128((const __m128i *)(ref + 80)); + __m128i s6 = _mm_loadu_si128((const __m128i *)(ref + 96)); + __m128i s7 = _mm_loadu_si128((const __m128i *)(ref + 112)); + __m128i p0 = _mm_loadu_si128((const __m128i *)pred); + __m128i p1; + __m128i t0, t1, t2, t3; + + t0 = _mm_unpacklo_epi8(s0, s1); + s1 = _mm_unpackhi_epi8(s0, s1); + t1 = _mm_unpacklo_epi8(s2, s3); + s3 = _mm_unpackhi_epi8(s2, s3); + t2 = _mm_unpacklo_epi8(s4, s5); + s5 = _mm_unpackhi_epi8(s4, s5); + t3 = _mm_unpacklo_epi8(s6, s7); + s7 = _mm_unpackhi_epi8(s6, s7); + + s0 = _mm_unpacklo_epi8(t0, s1); + s2 = _mm_unpacklo_epi8(t1, s3); + s4 = _mm_unpacklo_epi8(t2, s5); + s6 = _mm_unpacklo_epi8(t3, s7); + + s0 = _mm_unpacklo_epi32(s0, s2); + s4 = _mm_unpacklo_epi32(s4, s6); + s0 = _mm_unpacklo_epi8(s0, zero); + s4 = _mm_unpacklo_epi8(s4, zero); + + p1 = _mm_unpackhi_epi8(p0, zero); + p0 = _mm_unpacklo_epi8(p0, zero); + p0 = _mm_adds_epu16(s0, p0); + p1 = _mm_adds_epu16(s4, p1); + p0 = _mm_adds_epu16(p0, one); + p1 = _mm_adds_epu16(p1, one); + + p0 = _mm_srli_epi16(p0, 1); + p1 = _mm_srli_epi16(p1, 1); + p0 = _mm_packus_epi16(p0, p1); + + _mm_storeu_si128((__m128i *)(comp_pred), p0); + comp_pred += 16; + pred += 16; + ref += 16 * 8; + } + ref += stride - (width << 3); + } + } else if (width >= 8) { + // read 8 points at one time + for (i = 0; i < height; i++) { + for (j = 0; j < width; j += 8) { + __m128i s0 = _mm_loadu_si128((const __m128i *)ref); + __m128i s1 = _mm_loadu_si128((const __m128i *)(ref + 16)); + __m128i s2 = _mm_loadu_si128((const __m128i *)(ref + 32)); + __m128i s3 = _mm_loadu_si128((const __m128i *)(ref + 48)); + __m128i p0 = _mm_loadl_epi64((const __m128i *)pred); + __m128i t0, t1; + + t0 = _mm_unpacklo_epi8(s0, s1); + s1 = _mm_unpackhi_epi8(s0, s1); + t1 = _mm_unpacklo_epi8(s2, s3); + s3 = _mm_unpackhi_epi8(s2, s3); + + s0 = _mm_unpacklo_epi8(t0, s1); + s2 = _mm_unpacklo_epi8(t1, s3); + s0 = _mm_unpacklo_epi32(s0, s2); + s0 = _mm_unpacklo_epi8(s0, zero); + + p0 = _mm_unpacklo_epi8(p0, zero); + p0 = _mm_adds_epu16(s0, p0); + p0 = _mm_adds_epu16(p0, one); + p0 = _mm_srli_epi16(p0, 1); + p0 = _mm_packus_epi16(p0, zero); + + _mm_storel_epi64((__m128i *)(comp_pred), p0); + comp_pred += 8; + pred += 8; + ref += 8 * 8; + } + ref += stride - (width << 3); + } + } else { + // read 4 points at one time + for (i = 0; i < height; i++) { + for (j = 0; j < width; j += 4) { + __m128i s0 = _mm_loadu_si128((const __m128i *)ref); + __m128i s1 = _mm_loadu_si128((const __m128i *)(ref + 16)); + __m128i p0 = _mm_cvtsi32_si128(*(const uint32_t *)pred); + __m128i t0; + + t0 = _mm_unpacklo_epi8(s0, s1); + s1 = _mm_unpackhi_epi8(s0, s1); + s0 = _mm_unpacklo_epi8(t0, s1); + s0 = _mm_unpacklo_epi8(s0, zero); + + p0 = _mm_unpacklo_epi8(p0, zero); + p0 = _mm_adds_epu16(s0, p0); + p0 = _mm_adds_epu16(p0, one); + p0 = _mm_srli_epi16(p0, 1); + p0 = _mm_packus_epi16(p0, zero); + + *(int *)comp_pred = _mm_cvtsi128_si32(p0); + comp_pred += 4; + pred += 4; + ref += 4 * 8; + } + ref += stride - (width << 3); + } + } +} |