ref: 0f014c97e5fc950f7ef0d25bfb8ff4593e7e733a
dir: /vpx_dsp/x86/variance_sse2.c/
/* * Copyright (c) 2010 The WebM 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 <emmintrin.h> // SSE2 #include "./vpx_config.h" #include "./vpx_dsp_rtcd.h" #include "vpx_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 vpx_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 vpx_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 vpx_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 vpx_variance4x4_sse2(const unsigned char *src, int src_stride, const unsigned char *ref, int ref_stride, unsigned int *sse) { int sum; get4x4var_sse2(src, src_stride, ref, ref_stride, sse, &sum); return *sse - ((sum * sum) >> 4); } unsigned int vpx_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); return *sse - ((sum * sum) >> 5); } unsigned int vpx_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); return *sse - ((sum * sum) >> 5); } unsigned int vpx_variance8x8_sse2(const unsigned char *src, int src_stride, const unsigned char *ref, int ref_stride, unsigned int *sse) { int sum; vpx_get8x8var_sse2(src, src_stride, ref, ref_stride, sse, &sum); return *sse - ((sum * sum) >> 6); } unsigned int vpx_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, vpx_get8x8var_sse2, 8); return *sse - ((sum * sum) >> 7); } unsigned int vpx_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, vpx_get8x8var_sse2, 8); return *sse - ((sum * sum) >> 7); } unsigned int vpx_variance16x16_sse2(const unsigned char *src, int src_stride, const unsigned char *ref, int ref_stride, unsigned int *sse) { int sum; vpx_get16x16var_sse2(src, src_stride, ref, ref_stride, sse, &sum); return *sse - (((uint32_t)((int64_t)sum * sum)) >> 8); } unsigned int vpx_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, vpx_get16x16var_sse2, 16); return *sse - (unsigned int)(((int64_t)sum * sum) >> 10); } unsigned int vpx_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, vpx_get16x16var_sse2, 16); return *sse - (unsigned int)(((int64_t)sum * sum) >> 9); } unsigned int vpx_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, vpx_get16x16var_sse2, 16); return *sse - (unsigned int)(((int64_t)sum * sum) >> 9); } unsigned int vpx_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, vpx_get16x16var_sse2, 16); return *sse - (unsigned int)(((int64_t)sum * sum) >> 12); } unsigned int vpx_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, vpx_get16x16var_sse2, 16); return *sse - (unsigned int)(((int64_t)sum * sum) >> 11); } unsigned int vpx_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, vpx_get16x16var_sse2, 16); return *sse - (unsigned int)(((int64_t)sum * sum) >> 11); } unsigned int vpx_mse8x8_sse2(const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, unsigned int *sse) { vpx_variance8x8_sse2(src, src_stride, ref, ref_stride, sse); return *sse; } unsigned int vpx_mse8x16_sse2(const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, unsigned int *sse) { vpx_variance8x16_sse2(src, src_stride, ref, ref_stride, sse); return *sse; } unsigned int vpx_mse16x8_sse2(const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, unsigned int *sse) { vpx_variance16x8_sse2(src, src_stride, ref, ref_stride, sse); return *sse; } unsigned int vpx_mse16x16_sse2(const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, unsigned int *sse) { vpx_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 vpx_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 vpx_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 = vpx_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 = vpx_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 = vpx_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 = vpx_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 vpx_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 vpx_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 = vpx_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 = vpx_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 = vpx_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 = vpx_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