123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916 |
- /*
- * 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.
- */
- // Due to a header conflict between math.h and intrinsics includes with ceil()
- // in certain configurations under vs9 this include needs to precede
- // tmmintrin.h.
- #include <tmmintrin.h>
- #include "./vpx_dsp_rtcd.h"
- #include "vpx_dsp/vpx_filter.h"
- #include "vpx_dsp/x86/convolve.h"
- #include "vpx_mem/vpx_mem.h"
- #include "vpx_ports/mem.h"
- #include "vpx_ports/emmintrin_compat.h"
- // filters only for the 4_h8 convolution
- DECLARE_ALIGNED(16, static const uint8_t, filt1_4_h8[16]) = {
- 0, 1, 1, 2, 2, 3, 3, 4, 2, 3, 3, 4, 4, 5, 5, 6
- };
- DECLARE_ALIGNED(16, static const uint8_t, filt2_4_h8[16]) = {
- 4, 5, 5, 6, 6, 7, 7, 8, 6, 7, 7, 8, 8, 9, 9, 10
- };
- // filters for 8_h8 and 16_h8
- DECLARE_ALIGNED(16, static const uint8_t, filt1_global[16]) = {
- 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8
- };
- DECLARE_ALIGNED(16, static const uint8_t, filt2_global[16]) = {
- 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10
- };
- DECLARE_ALIGNED(16, static const uint8_t, filt3_global[16]) = {
- 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12
- };
- DECLARE_ALIGNED(16, static const uint8_t, filt4_global[16]) = {
- 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14
- };
- // These are reused by the avx2 intrinsics.
- filter8_1dfunction vpx_filter_block1d8_v8_intrin_ssse3;
- filter8_1dfunction vpx_filter_block1d8_h8_intrin_ssse3;
- filter8_1dfunction vpx_filter_block1d4_h8_intrin_ssse3;
- void vpx_filter_block1d4_h8_intrin_ssse3(const uint8_t *src_ptr,
- ptrdiff_t src_pixels_per_line,
- uint8_t *output_ptr,
- ptrdiff_t output_pitch,
- uint32_t output_height,
- const int16_t *filter) {
- __m128i firstFilters, secondFilters, shuffle1, shuffle2;
- __m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt4;
- __m128i addFilterReg64, filtersReg, srcReg, minReg;
- unsigned int i;
- // create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
- addFilterReg64 =_mm_set1_epi32((int)0x0400040u);
- filtersReg = _mm_loadu_si128((const __m128i *)filter);
- // converting the 16 bit (short) to 8 bit (byte) and have the same data
- // in both lanes of 128 bit register.
- filtersReg =_mm_packs_epi16(filtersReg, filtersReg);
- // duplicate only the first 16 bits in the filter into the first lane
- firstFilters = _mm_shufflelo_epi16(filtersReg, 0);
- // duplicate only the third 16 bit in the filter into the first lane
- secondFilters = _mm_shufflelo_epi16(filtersReg, 0xAAu);
- // duplicate only the seconds 16 bits in the filter into the second lane
- // firstFilters: k0 k1 k0 k1 k0 k1 k0 k1 k2 k3 k2 k3 k2 k3 k2 k3
- firstFilters = _mm_shufflehi_epi16(firstFilters, 0x55u);
- // duplicate only the forth 16 bits in the filter into the second lane
- // secondFilters: k4 k5 k4 k5 k4 k5 k4 k5 k6 k7 k6 k7 k6 k7 k6 k7
- secondFilters = _mm_shufflehi_epi16(secondFilters, 0xFFu);
- // loading the local filters
- shuffle1 =_mm_load_si128((__m128i const *)filt1_4_h8);
- shuffle2 = _mm_load_si128((__m128i const *)filt2_4_h8);
- for (i = 0; i < output_height; i++) {
- srcReg = _mm_loadu_si128((const __m128i *)(src_ptr - 3));
- // filter the source buffer
- srcRegFilt1= _mm_shuffle_epi8(srcReg, shuffle1);
- srcRegFilt2= _mm_shuffle_epi8(srcReg, shuffle2);
- // multiply 2 adjacent elements with the filter and add the result
- srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
- srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, secondFilters);
- // extract the higher half of the lane
- srcRegFilt3 = _mm_srli_si128(srcRegFilt1, 8);
- srcRegFilt4 = _mm_srli_si128(srcRegFilt2, 8);
- minReg = _mm_min_epi16(srcRegFilt3, srcRegFilt2);
- // add and saturate all the results together
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt4);
- srcRegFilt3 = _mm_max_epi16(srcRegFilt3, srcRegFilt2);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt3);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);
- // shift by 7 bit each 16 bits
- srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);
- // shrink to 8 bit each 16 bits
- srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);
- src_ptr+=src_pixels_per_line;
- // save only 4 bytes
- *((int*)&output_ptr[0])= _mm_cvtsi128_si32(srcRegFilt1);
- output_ptr+=output_pitch;
- }
- }
- void vpx_filter_block1d8_h8_intrin_ssse3(const uint8_t *src_ptr,
- ptrdiff_t src_pixels_per_line,
- uint8_t *output_ptr,
- ptrdiff_t output_pitch,
- uint32_t output_height,
- const int16_t *filter) {
- __m128i firstFilters, secondFilters, thirdFilters, forthFilters, srcReg;
- __m128i filt1Reg, filt2Reg, filt3Reg, filt4Reg;
- __m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt4;
- __m128i addFilterReg64, filtersReg, minReg;
- unsigned int i;
- // create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
- addFilterReg64 = _mm_set1_epi32((int)0x0400040u);
- filtersReg = _mm_loadu_si128((const __m128i *)filter);
- // converting the 16 bit (short) to 8 bit (byte) and have the same data
- // in both lanes of 128 bit register.
- filtersReg =_mm_packs_epi16(filtersReg, filtersReg);
- // duplicate only the first 16 bits (first and second byte)
- // across 128 bit register
- firstFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x100u));
- // duplicate only the second 16 bits (third and forth byte)
- // across 128 bit register
- secondFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x302u));
- // duplicate only the third 16 bits (fifth and sixth byte)
- // across 128 bit register
- thirdFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x504u));
- // duplicate only the forth 16 bits (seventh and eighth byte)
- // across 128 bit register
- forthFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x706u));
- filt1Reg = _mm_load_si128((__m128i const *)filt1_global);
- filt2Reg = _mm_load_si128((__m128i const *)filt2_global);
- filt3Reg = _mm_load_si128((__m128i const *)filt3_global);
- filt4Reg = _mm_load_si128((__m128i const *)filt4_global);
- for (i = 0; i < output_height; i++) {
- srcReg = _mm_loadu_si128((const __m128i *)(src_ptr - 3));
- // filter the source buffer
- srcRegFilt1= _mm_shuffle_epi8(srcReg, filt1Reg);
- srcRegFilt2= _mm_shuffle_epi8(srcReg, filt2Reg);
- // multiply 2 adjacent elements with the filter and add the result
- srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
- srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, secondFilters);
- // filter the source buffer
- srcRegFilt3= _mm_shuffle_epi8(srcReg, filt3Reg);
- srcRegFilt4= _mm_shuffle_epi8(srcReg, filt4Reg);
- // multiply 2 adjacent elements with the filter and add the result
- srcRegFilt3 = _mm_maddubs_epi16(srcRegFilt3, thirdFilters);
- srcRegFilt4 = _mm_maddubs_epi16(srcRegFilt4, forthFilters);
- // add and saturate all the results together
- minReg = _mm_min_epi16(srcRegFilt2, srcRegFilt3);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt4);
- srcRegFilt2= _mm_max_epi16(srcRegFilt2, srcRegFilt3);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt2);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);
- // shift by 7 bit each 16 bits
- srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);
- // shrink to 8 bit each 16 bits
- srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);
- src_ptr+=src_pixels_per_line;
- // save only 8 bytes
- _mm_storel_epi64((__m128i*)&output_ptr[0], srcRegFilt1);
- output_ptr+=output_pitch;
- }
- }
- void vpx_filter_block1d8_v8_intrin_ssse3(const uint8_t *src_ptr,
- ptrdiff_t src_pitch,
- uint8_t *output_ptr,
- ptrdiff_t out_pitch,
- uint32_t output_height,
- const int16_t *filter) {
- __m128i addFilterReg64, filtersReg, minReg;
- __m128i firstFilters, secondFilters, thirdFilters, forthFilters;
- __m128i srcRegFilt1, srcRegFilt2, srcRegFilt3, srcRegFilt5;
- __m128i srcReg1, srcReg2, srcReg3, srcReg4, srcReg5, srcReg6, srcReg7;
- __m128i srcReg8;
- unsigned int i;
- // create a register with 0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,64
- addFilterReg64 = _mm_set1_epi32((int)0x0400040u);
- filtersReg = _mm_loadu_si128((const __m128i *)filter);
- // converting the 16 bit (short) to 8 bit (byte) and have the same data
- // in both lanes of 128 bit register.
- filtersReg =_mm_packs_epi16(filtersReg, filtersReg);
- // duplicate only the first 16 bits in the filter
- firstFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x100u));
- // duplicate only the second 16 bits in the filter
- secondFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x302u));
- // duplicate only the third 16 bits in the filter
- thirdFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x504u));
- // duplicate only the forth 16 bits in the filter
- forthFilters = _mm_shuffle_epi8(filtersReg, _mm_set1_epi16(0x706u));
- // load the first 7 rows of 8 bytes
- srcReg1 = _mm_loadl_epi64((const __m128i *)src_ptr);
- srcReg2 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch));
- srcReg3 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 2));
- srcReg4 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 3));
- srcReg5 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 4));
- srcReg6 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 5));
- srcReg7 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 6));
- for (i = 0; i < output_height; i++) {
- // load the last 8 bytes
- srcReg8 = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 7));
- // merge the result together
- srcRegFilt1 = _mm_unpacklo_epi8(srcReg1, srcReg2);
- srcRegFilt3 = _mm_unpacklo_epi8(srcReg3, srcReg4);
- // merge the result together
- srcRegFilt2 = _mm_unpacklo_epi8(srcReg5, srcReg6);
- srcRegFilt5 = _mm_unpacklo_epi8(srcReg7, srcReg8);
- // multiply 2 adjacent elements with the filter and add the result
- srcRegFilt1 = _mm_maddubs_epi16(srcRegFilt1, firstFilters);
- srcRegFilt3 = _mm_maddubs_epi16(srcRegFilt3, secondFilters);
- srcRegFilt2 = _mm_maddubs_epi16(srcRegFilt2, thirdFilters);
- srcRegFilt5 = _mm_maddubs_epi16(srcRegFilt5, forthFilters);
- // add and saturate the results together
- minReg = _mm_min_epi16(srcRegFilt2, srcRegFilt3);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt5);
- srcRegFilt2 = _mm_max_epi16(srcRegFilt2, srcRegFilt3);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, minReg);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, srcRegFilt2);
- srcRegFilt1 = _mm_adds_epi16(srcRegFilt1, addFilterReg64);
- // shift by 7 bit each 16 bit
- srcRegFilt1 = _mm_srai_epi16(srcRegFilt1, 7);
- // shrink to 8 bit each 16 bits
- srcRegFilt1 = _mm_packus_epi16(srcRegFilt1, srcRegFilt1);
- src_ptr+=src_pitch;
- // shift down a row
- srcReg1 = srcReg2;
- srcReg2 = srcReg3;
- srcReg3 = srcReg4;
- srcReg4 = srcReg5;
- srcReg5 = srcReg6;
- srcReg6 = srcReg7;
- srcReg7 = srcReg8;
- // save only 8 bytes convolve result
- _mm_storel_epi64((__m128i*)&output_ptr[0], srcRegFilt1);
- output_ptr+=out_pitch;
- }
- }
- filter8_1dfunction vpx_filter_block1d16_v8_ssse3;
- filter8_1dfunction vpx_filter_block1d16_h8_ssse3;
- filter8_1dfunction vpx_filter_block1d8_v8_ssse3;
- filter8_1dfunction vpx_filter_block1d8_h8_ssse3;
- filter8_1dfunction vpx_filter_block1d4_v8_ssse3;
- filter8_1dfunction vpx_filter_block1d4_h8_ssse3;
- filter8_1dfunction vpx_filter_block1d16_v8_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d16_h8_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d8_v8_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d8_h8_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d4_v8_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d4_h8_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d16_v2_ssse3;
- filter8_1dfunction vpx_filter_block1d16_h2_ssse3;
- filter8_1dfunction vpx_filter_block1d8_v2_ssse3;
- filter8_1dfunction vpx_filter_block1d8_h2_ssse3;
- filter8_1dfunction vpx_filter_block1d4_v2_ssse3;
- filter8_1dfunction vpx_filter_block1d4_h2_ssse3;
- filter8_1dfunction vpx_filter_block1d16_v2_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d16_h2_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d8_v2_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d8_h2_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d4_v2_avg_ssse3;
- filter8_1dfunction vpx_filter_block1d4_h2_avg_ssse3;
- // void vpx_convolve8_horiz_ssse3(const uint8_t *src, ptrdiff_t src_stride,
- // uint8_t *dst, ptrdiff_t dst_stride,
- // const int16_t *filter_x, int x_step_q4,
- // const int16_t *filter_y, int y_step_q4,
- // int w, int h);
- // void vpx_convolve8_vert_ssse3(const uint8_t *src, ptrdiff_t src_stride,
- // uint8_t *dst, ptrdiff_t dst_stride,
- // const int16_t *filter_x, int x_step_q4,
- // const int16_t *filter_y, int y_step_q4,
- // int w, int h);
- // void vpx_convolve8_avg_horiz_ssse3(const uint8_t *src, ptrdiff_t src_stride,
- // uint8_t *dst, ptrdiff_t dst_stride,
- // const int16_t *filter_x, int x_step_q4,
- // const int16_t *filter_y, int y_step_q4,
- // int w, int h);
- // void vpx_convolve8_avg_vert_ssse3(const uint8_t *src, ptrdiff_t src_stride,
- // uint8_t *dst, ptrdiff_t dst_stride,
- // const int16_t *filter_x, int x_step_q4,
- // const int16_t *filter_y, int y_step_q4,
- // int w, int h);
- FUN_CONV_1D(horiz, x_step_q4, filter_x, h, src, , ssse3);
- FUN_CONV_1D(vert, y_step_q4, filter_y, v, src - src_stride * 3, , ssse3);
- FUN_CONV_1D(avg_horiz, x_step_q4, filter_x, h, src, avg_, ssse3);
- FUN_CONV_1D(avg_vert, y_step_q4, filter_y, v, src - src_stride * 3, avg_,
- ssse3);
- #define TRANSPOSE_8X8(in0, in1, in2, in3, in4, in5, in6, in7, \
- out0, out1, out2, out3, out4, out5, out6, out7) { \
- const __m128i tr0_0 = _mm_unpacklo_epi8(in0, in1); \
- const __m128i tr0_1 = _mm_unpacklo_epi8(in2, in3); \
- const __m128i tr0_2 = _mm_unpacklo_epi8(in4, in5); \
- const __m128i tr0_3 = _mm_unpacklo_epi8(in6, in7); \
- \
- const __m128i tr1_0 = _mm_unpacklo_epi16(tr0_0, tr0_1); \
- const __m128i tr1_1 = _mm_unpackhi_epi16(tr0_0, tr0_1); \
- const __m128i tr1_2 = _mm_unpacklo_epi16(tr0_2, tr0_3); \
- const __m128i tr1_3 = _mm_unpackhi_epi16(tr0_2, tr0_3); \
- \
- const __m128i tr2_0 = _mm_unpacklo_epi32(tr1_0, tr1_2); \
- const __m128i tr2_1 = _mm_unpackhi_epi32(tr1_0, tr1_2); \
- const __m128i tr2_2 = _mm_unpacklo_epi32(tr1_1, tr1_3); \
- const __m128i tr2_3 = _mm_unpackhi_epi32(tr1_1, tr1_3); \
- \
- out0 = _mm_unpacklo_epi64(tr2_0, tr2_0); \
- out1 = _mm_unpackhi_epi64(tr2_0, tr2_0); \
- out2 = _mm_unpacklo_epi64(tr2_1, tr2_1); \
- out3 = _mm_unpackhi_epi64(tr2_1, tr2_1); \
- out4 = _mm_unpacklo_epi64(tr2_2, tr2_2); \
- out5 = _mm_unpackhi_epi64(tr2_2, tr2_2); \
- out6 = _mm_unpacklo_epi64(tr2_3, tr2_3); \
- out7 = _mm_unpackhi_epi64(tr2_3, tr2_3); \
- }
- static void filter_horiz_w8_ssse3(const uint8_t *src_x, ptrdiff_t src_pitch,
- uint8_t *dst, const int16_t *x_filter) {
- const __m128i k_256 = _mm_set1_epi16(1 << 8);
- const __m128i f_values = _mm_load_si128((const __m128i *)x_filter);
- // pack and duplicate the filter values
- const __m128i f1f0 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0200u));
- const __m128i f3f2 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0604u));
- const __m128i f5f4 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0a08u));
- const __m128i f7f6 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0e0cu));
- const __m128i A = _mm_loadl_epi64((const __m128i *)src_x);
- const __m128i B = _mm_loadl_epi64((const __m128i *)(src_x + src_pitch));
- const __m128i C = _mm_loadl_epi64((const __m128i *)(src_x + src_pitch * 2));
- const __m128i D = _mm_loadl_epi64((const __m128i *)(src_x + src_pitch * 3));
- const __m128i E = _mm_loadl_epi64((const __m128i *)(src_x + src_pitch * 4));
- const __m128i F = _mm_loadl_epi64((const __m128i *)(src_x + src_pitch * 5));
- const __m128i G = _mm_loadl_epi64((const __m128i *)(src_x + src_pitch * 6));
- const __m128i H = _mm_loadl_epi64((const __m128i *)(src_x + src_pitch * 7));
- // 00 01 10 11 02 03 12 13 04 05 14 15 06 07 16 17
- const __m128i tr0_0 = _mm_unpacklo_epi16(A, B);
- // 20 21 30 31 22 23 32 33 24 25 34 35 26 27 36 37
- const __m128i tr0_1 = _mm_unpacklo_epi16(C, D);
- // 40 41 50 51 42 43 52 53 44 45 54 55 46 47 56 57
- const __m128i tr0_2 = _mm_unpacklo_epi16(E, F);
- // 60 61 70 71 62 63 72 73 64 65 74 75 66 67 76 77
- const __m128i tr0_3 = _mm_unpacklo_epi16(G, H);
- // 00 01 10 11 20 21 30 31 02 03 12 13 22 23 32 33
- const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1);
- // 04 05 14 15 24 25 34 35 06 07 16 17 26 27 36 37
- const __m128i tr1_1 = _mm_unpackhi_epi32(tr0_0, tr0_1);
- // 40 41 50 51 60 61 70 71 42 43 52 53 62 63 72 73
- const __m128i tr1_2 = _mm_unpacklo_epi32(tr0_2, tr0_3);
- // 44 45 54 55 64 65 74 75 46 47 56 57 66 67 76 77
- const __m128i tr1_3 = _mm_unpackhi_epi32(tr0_2, tr0_3);
- // 00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71
- const __m128i s1s0 = _mm_unpacklo_epi64(tr1_0, tr1_2);
- const __m128i s3s2 = _mm_unpackhi_epi64(tr1_0, tr1_2);
- const __m128i s5s4 = _mm_unpacklo_epi64(tr1_1, tr1_3);
- const __m128i s7s6 = _mm_unpackhi_epi64(tr1_1, tr1_3);
- // multiply 2 adjacent elements with the filter and add the result
- const __m128i x0 = _mm_maddubs_epi16(s1s0, f1f0);
- const __m128i x1 = _mm_maddubs_epi16(s3s2, f3f2);
- const __m128i x2 = _mm_maddubs_epi16(s5s4, f5f4);
- const __m128i x3 = _mm_maddubs_epi16(s7s6, f7f6);
- // add and saturate the results together
- const __m128i min_x2x1 = _mm_min_epi16(x2, x1);
- const __m128i max_x2x1 = _mm_max_epi16(x2, x1);
- __m128i temp = _mm_adds_epi16(x0, x3);
- temp = _mm_adds_epi16(temp, min_x2x1);
- temp = _mm_adds_epi16(temp, max_x2x1);
- // round and shift by 7 bit each 16 bit
- temp = _mm_mulhrs_epi16(temp, k_256);
- // shrink to 8 bit each 16 bits
- temp = _mm_packus_epi16(temp, temp);
- // save only 8 bytes convolve result
- _mm_storel_epi64((__m128i*)dst, temp);
- }
- static void transpose8x8_to_dst(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride) {
- __m128i A, B, C, D, E, F, G, H;
- A = _mm_loadl_epi64((const __m128i *)src);
- B = _mm_loadl_epi64((const __m128i *)(src + src_stride));
- C = _mm_loadl_epi64((const __m128i *)(src + src_stride * 2));
- D = _mm_loadl_epi64((const __m128i *)(src + src_stride * 3));
- E = _mm_loadl_epi64((const __m128i *)(src + src_stride * 4));
- F = _mm_loadl_epi64((const __m128i *)(src + src_stride * 5));
- G = _mm_loadl_epi64((const __m128i *)(src + src_stride * 6));
- H = _mm_loadl_epi64((const __m128i *)(src + src_stride * 7));
- TRANSPOSE_8X8(A, B, C, D, E, F, G, H,
- A, B, C, D, E, F, G, H);
- _mm_storel_epi64((__m128i*)dst, A);
- _mm_storel_epi64((__m128i*)(dst + dst_stride * 1), B);
- _mm_storel_epi64((__m128i*)(dst + dst_stride * 2), C);
- _mm_storel_epi64((__m128i*)(dst + dst_stride * 3), D);
- _mm_storel_epi64((__m128i*)(dst + dst_stride * 4), E);
- _mm_storel_epi64((__m128i*)(dst + dst_stride * 5), F);
- _mm_storel_epi64((__m128i*)(dst + dst_stride * 6), G);
- _mm_storel_epi64((__m128i*)(dst + dst_stride * 7), H);
- }
- static void scaledconvolve_horiz_w8(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride,
- const InterpKernel *x_filters,
- int x0_q4, int x_step_q4, int w, int h) {
- DECLARE_ALIGNED(16, uint8_t, temp[8 * 8]);
- int x, y, z;
- src -= SUBPEL_TAPS / 2 - 1;
- // This function processes 8x8 areas. The intermediate height is not always
- // a multiple of 8, so force it to be a multiple of 8 here.
- y = h + (8 - (h & 0x7));
- do {
- int x_q4 = x0_q4;
- for (x = 0; x < w; x += 8) {
- // process 8 src_x steps
- for (z = 0; z < 8; ++z) {
- const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS];
- const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK];
- if (x_q4 & SUBPEL_MASK) {
- filter_horiz_w8_ssse3(src_x, src_stride, temp + (z * 8), x_filter);
- } else {
- int i;
- for (i = 0; i < 8; ++i) {
- temp[z * 8 + i] = src_x[i * src_stride + 3];
- }
- }
- x_q4 += x_step_q4;
- }
- // transpose the 8x8 filters values back to dst
- transpose8x8_to_dst(temp, 8, dst + x, dst_stride);
- }
- src += src_stride * 8;
- dst += dst_stride * 8;
- } while (y -= 8);
- }
- static void filter_horiz_w4_ssse3(const uint8_t *src_ptr, ptrdiff_t src_pitch,
- uint8_t *dst, const int16_t *filter) {
- const __m128i k_256 = _mm_set1_epi16(1 << 8);
- const __m128i f_values = _mm_load_si128((const __m128i *)filter);
- // pack and duplicate the filter values
- const __m128i f1f0 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0200u));
- const __m128i f3f2 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0604u));
- const __m128i f5f4 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0a08u));
- const __m128i f7f6 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0e0cu));
- const __m128i A = _mm_loadl_epi64((const __m128i *)src_ptr);
- const __m128i B = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch));
- const __m128i C = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 2));
- const __m128i D = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 3));
- // TRANSPOSE...
- // 00 01 02 03 04 05 06 07
- // 10 11 12 13 14 15 16 17
- // 20 21 22 23 24 25 26 27
- // 30 31 32 33 34 35 36 37
- //
- // TO
- //
- // 00 10 20 30
- // 01 11 21 31
- // 02 12 22 32
- // 03 13 23 33
- // 04 14 24 34
- // 05 15 25 35
- // 06 16 26 36
- // 07 17 27 37
- //
- // 00 01 10 11 02 03 12 13 04 05 14 15 06 07 16 17
- const __m128i tr0_0 = _mm_unpacklo_epi16(A, B);
- // 20 21 30 31 22 23 32 33 24 25 34 35 26 27 36 37
- const __m128i tr0_1 = _mm_unpacklo_epi16(C, D);
- // 00 01 10 11 20 21 30 31 02 03 12 13 22 23 32 33
- const __m128i s1s0 = _mm_unpacklo_epi32(tr0_0, tr0_1);
- // 04 05 14 15 24 25 34 35 06 07 16 17 26 27 36 37
- const __m128i s5s4 = _mm_unpackhi_epi32(tr0_0, tr0_1);
- // 02 03 12 13 22 23 32 33
- const __m128i s3s2 = _mm_srli_si128(s1s0, 8);
- // 06 07 16 17 26 27 36 37
- const __m128i s7s6 = _mm_srli_si128(s5s4, 8);
- // multiply 2 adjacent elements with the filter and add the result
- const __m128i x0 = _mm_maddubs_epi16(s1s0, f1f0);
- const __m128i x1 = _mm_maddubs_epi16(s3s2, f3f2);
- const __m128i x2 = _mm_maddubs_epi16(s5s4, f5f4);
- const __m128i x3 = _mm_maddubs_epi16(s7s6, f7f6);
- // add and saturate the results together
- const __m128i min_x2x1 = _mm_min_epi16(x2, x1);
- const __m128i max_x2x1 = _mm_max_epi16(x2, x1);
- __m128i temp = _mm_adds_epi16(x0, x3);
- temp = _mm_adds_epi16(temp, min_x2x1);
- temp = _mm_adds_epi16(temp, max_x2x1);
- // round and shift by 7 bit each 16 bit
- temp = _mm_mulhrs_epi16(temp, k_256);
- // shrink to 8 bit each 16 bits
- temp = _mm_packus_epi16(temp, temp);
- // save only 4 bytes
- *(int *)dst = _mm_cvtsi128_si32(temp);
- }
- static void transpose4x4_to_dst(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride) {
- __m128i A = _mm_cvtsi32_si128(*(const int *)src);
- __m128i B = _mm_cvtsi32_si128(*(const int *)(src + src_stride));
- __m128i C = _mm_cvtsi32_si128(*(const int *)(src + src_stride * 2));
- __m128i D = _mm_cvtsi32_si128(*(const int *)(src + src_stride * 3));
- // 00 10 01 11 02 12 03 13
- const __m128i tr0_0 = _mm_unpacklo_epi8(A, B);
- // 20 30 21 31 22 32 23 33
- const __m128i tr0_1 = _mm_unpacklo_epi8(C, D);
- // 00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33
- A = _mm_unpacklo_epi16(tr0_0, tr0_1);
- B = _mm_srli_si128(A, 4);
- C = _mm_srli_si128(A, 8);
- D = _mm_srli_si128(A, 12);
- *(int *)(dst) = _mm_cvtsi128_si32(A);
- *(int *)(dst + dst_stride) = _mm_cvtsi128_si32(B);
- *(int *)(dst + dst_stride * 2) = _mm_cvtsi128_si32(C);
- *(int *)(dst + dst_stride * 3) = _mm_cvtsi128_si32(D);
- }
- static void scaledconvolve_horiz_w4(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride,
- const InterpKernel *x_filters,
- int x0_q4, int x_step_q4, int w, int h) {
- DECLARE_ALIGNED(16, uint8_t, temp[4 * 4]);
- int x, y, z;
- src -= SUBPEL_TAPS / 2 - 1;
- for (y = 0; y < h; y += 4) {
- int x_q4 = x0_q4;
- for (x = 0; x < w; x += 4) {
- // process 4 src_x steps
- for (z = 0; z < 4; ++z) {
- const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS];
- const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK];
- if (x_q4 & SUBPEL_MASK) {
- filter_horiz_w4_ssse3(src_x, src_stride, temp + (z * 4), x_filter);
- } else {
- int i;
- for (i = 0; i < 4; ++i) {
- temp[z * 4 + i] = src_x[i * src_stride + 3];
- }
- }
- x_q4 += x_step_q4;
- }
- // transpose the 4x4 filters values back to dst
- transpose4x4_to_dst(temp, 4, dst + x, dst_stride);
- }
- src += src_stride * 4;
- dst += dst_stride * 4;
- }
- }
- static void filter_vert_w4_ssse3(const uint8_t *src_ptr, ptrdiff_t src_pitch,
- uint8_t *dst, const int16_t *filter) {
- const __m128i k_256 = _mm_set1_epi16(1 << 8);
- const __m128i f_values = _mm_load_si128((const __m128i *)filter);
- // pack and duplicate the filter values
- const __m128i f1f0 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0200u));
- const __m128i f3f2 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0604u));
- const __m128i f5f4 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0a08u));
- const __m128i f7f6 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0e0cu));
- const __m128i A = _mm_cvtsi32_si128(*(const int *)src_ptr);
- const __m128i B = _mm_cvtsi32_si128(*(const int *)(src_ptr + src_pitch));
- const __m128i C = _mm_cvtsi32_si128(*(const int *)(src_ptr + src_pitch * 2));
- const __m128i D = _mm_cvtsi32_si128(*(const int *)(src_ptr + src_pitch * 3));
- const __m128i E = _mm_cvtsi32_si128(*(const int *)(src_ptr + src_pitch * 4));
- const __m128i F = _mm_cvtsi32_si128(*(const int *)(src_ptr + src_pitch * 5));
- const __m128i G = _mm_cvtsi32_si128(*(const int *)(src_ptr + src_pitch * 6));
- const __m128i H = _mm_cvtsi32_si128(*(const int *)(src_ptr + src_pitch * 7));
- const __m128i s1s0 = _mm_unpacklo_epi8(A, B);
- const __m128i s3s2 = _mm_unpacklo_epi8(C, D);
- const __m128i s5s4 = _mm_unpacklo_epi8(E, F);
- const __m128i s7s6 = _mm_unpacklo_epi8(G, H);
- // multiply 2 adjacent elements with the filter and add the result
- const __m128i x0 = _mm_maddubs_epi16(s1s0, f1f0);
- const __m128i x1 = _mm_maddubs_epi16(s3s2, f3f2);
- const __m128i x2 = _mm_maddubs_epi16(s5s4, f5f4);
- const __m128i x3 = _mm_maddubs_epi16(s7s6, f7f6);
- // add and saturate the results together
- const __m128i min_x2x1 = _mm_min_epi16(x2, x1);
- const __m128i max_x2x1 = _mm_max_epi16(x2, x1);
- __m128i temp = _mm_adds_epi16(x0, x3);
- temp = _mm_adds_epi16(temp, min_x2x1);
- temp = _mm_adds_epi16(temp, max_x2x1);
- // round and shift by 7 bit each 16 bit
- temp = _mm_mulhrs_epi16(temp, k_256);
- // shrink to 8 bit each 16 bits
- temp = _mm_packus_epi16(temp, temp);
- // save only 4 bytes
- *(int *)dst = _mm_cvtsi128_si32(temp);
- }
- static void scaledconvolve_vert_w4(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride,
- const InterpKernel *y_filters,
- int y0_q4, int y_step_q4, int w, int h) {
- int y;
- int y_q4 = y0_q4;
- src -= src_stride * (SUBPEL_TAPS / 2 - 1);
- for (y = 0; y < h; ++y) {
- const unsigned char *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride];
- const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK];
- if (y_q4 & SUBPEL_MASK) {
- filter_vert_w4_ssse3(src_y, src_stride, &dst[y * dst_stride], y_filter);
- } else {
- memcpy(&dst[y * dst_stride], &src_y[3 * src_stride], w);
- }
- y_q4 += y_step_q4;
- }
- }
- static void filter_vert_w8_ssse3(const uint8_t *src_ptr, ptrdiff_t src_pitch,
- uint8_t *dst, const int16_t *filter) {
- const __m128i k_256 = _mm_set1_epi16(1 << 8);
- const __m128i f_values = _mm_load_si128((const __m128i *)filter);
- // pack and duplicate the filter values
- const __m128i f1f0 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0200u));
- const __m128i f3f2 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0604u));
- const __m128i f5f4 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0a08u));
- const __m128i f7f6 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0e0cu));
- const __m128i A = _mm_loadl_epi64((const __m128i *)src_ptr);
- const __m128i B = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch));
- const __m128i C = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 2));
- const __m128i D = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 3));
- const __m128i E = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 4));
- const __m128i F = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 5));
- const __m128i G = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 6));
- const __m128i H = _mm_loadl_epi64((const __m128i *)(src_ptr + src_pitch * 7));
- const __m128i s1s0 = _mm_unpacklo_epi8(A, B);
- const __m128i s3s2 = _mm_unpacklo_epi8(C, D);
- const __m128i s5s4 = _mm_unpacklo_epi8(E, F);
- const __m128i s7s6 = _mm_unpacklo_epi8(G, H);
- // multiply 2 adjacent elements with the filter and add the result
- const __m128i x0 = _mm_maddubs_epi16(s1s0, f1f0);
- const __m128i x1 = _mm_maddubs_epi16(s3s2, f3f2);
- const __m128i x2 = _mm_maddubs_epi16(s5s4, f5f4);
- const __m128i x3 = _mm_maddubs_epi16(s7s6, f7f6);
- // add and saturate the results together
- const __m128i min_x2x1 = _mm_min_epi16(x2, x1);
- const __m128i max_x2x1 = _mm_max_epi16(x2, x1);
- __m128i temp = _mm_adds_epi16(x0, x3);
- temp = _mm_adds_epi16(temp, min_x2x1);
- temp = _mm_adds_epi16(temp, max_x2x1);
- // round and shift by 7 bit each 16 bit
- temp = _mm_mulhrs_epi16(temp, k_256);
- // shrink to 8 bit each 16 bits
- temp = _mm_packus_epi16(temp, temp);
- // save only 8 bytes convolve result
- _mm_storel_epi64((__m128i*)dst, temp);
- }
- static void scaledconvolve_vert_w8(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride,
- const InterpKernel *y_filters,
- int y0_q4, int y_step_q4, int w, int h) {
- int y;
- int y_q4 = y0_q4;
- src -= src_stride * (SUBPEL_TAPS / 2 - 1);
- for (y = 0; y < h; ++y) {
- const unsigned char *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride];
- const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK];
- if (y_q4 & SUBPEL_MASK) {
- filter_vert_w8_ssse3(src_y, src_stride, &dst[y * dst_stride], y_filter);
- } else {
- memcpy(&dst[y * dst_stride], &src_y[3 * src_stride], w);
- }
- y_q4 += y_step_q4;
- }
- }
- static void filter_vert_w16_ssse3(const uint8_t *src_ptr, ptrdiff_t src_pitch,
- uint8_t *dst, const int16_t *filter, int w) {
- const __m128i k_256 = _mm_set1_epi16(1 << 8);
- const __m128i f_values = _mm_load_si128((const __m128i *)filter);
- // pack and duplicate the filter values
- const __m128i f1f0 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0200u));
- const __m128i f3f2 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0604u));
- const __m128i f5f4 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0a08u));
- const __m128i f7f6 = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0e0cu));
- int i;
- for (i = 0; i < w; i += 16) {
- const __m128i A = _mm_loadu_si128((const __m128i *)src_ptr);
- const __m128i B = _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch));
- const __m128i C =
- _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 2));
- const __m128i D =
- _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 3));
- const __m128i E =
- _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 4));
- const __m128i F =
- _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 5));
- const __m128i G =
- _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 6));
- const __m128i H =
- _mm_loadu_si128((const __m128i *)(src_ptr + src_pitch * 7));
- // merge the result together
- const __m128i s1s0_lo = _mm_unpacklo_epi8(A, B);
- const __m128i s7s6_lo = _mm_unpacklo_epi8(G, H);
- const __m128i s1s0_hi = _mm_unpackhi_epi8(A, B);
- const __m128i s7s6_hi = _mm_unpackhi_epi8(G, H);
- // multiply 2 adjacent elements with the filter and add the result
- const __m128i x0_lo = _mm_maddubs_epi16(s1s0_lo, f1f0);
- const __m128i x3_lo = _mm_maddubs_epi16(s7s6_lo, f7f6);
- const __m128i x0_hi = _mm_maddubs_epi16(s1s0_hi, f1f0);
- const __m128i x3_hi = _mm_maddubs_epi16(s7s6_hi, f7f6);
- // add and saturate the results together
- const __m128i x3x0_lo = _mm_adds_epi16(x0_lo, x3_lo);
- const __m128i x3x0_hi = _mm_adds_epi16(x0_hi, x3_hi);
- // merge the result together
- const __m128i s3s2_lo = _mm_unpacklo_epi8(C, D);
- const __m128i s3s2_hi = _mm_unpackhi_epi8(C, D);
- // multiply 2 adjacent elements with the filter and add the result
- const __m128i x1_lo = _mm_maddubs_epi16(s3s2_lo, f3f2);
- const __m128i x1_hi = _mm_maddubs_epi16(s3s2_hi, f3f2);
- // merge the result together
- const __m128i s5s4_lo = _mm_unpacklo_epi8(E, F);
- const __m128i s5s4_hi = _mm_unpackhi_epi8(E, F);
- // multiply 2 adjacent elements with the filter and add the result
- const __m128i x2_lo = _mm_maddubs_epi16(s5s4_lo, f5f4);
- const __m128i x2_hi = _mm_maddubs_epi16(s5s4_hi, f5f4);
- // add and saturate the results together
- __m128i temp_lo = _mm_adds_epi16(x3x0_lo, _mm_min_epi16(x1_lo, x2_lo));
- __m128i temp_hi = _mm_adds_epi16(x3x0_hi, _mm_min_epi16(x1_hi, x2_hi));
- // add and saturate the results together
- temp_lo = _mm_adds_epi16(temp_lo, _mm_max_epi16(x1_lo, x2_lo));
- temp_hi = _mm_adds_epi16(temp_hi, _mm_max_epi16(x1_hi, x2_hi));
- // round and shift by 7 bit each 16 bit
- temp_lo = _mm_mulhrs_epi16(temp_lo, k_256);
- temp_hi = _mm_mulhrs_epi16(temp_hi, k_256);
- // shrink to 8 bit each 16 bits, the first lane contain the first
- // convolve result and the second lane contain the second convolve
- // result
- temp_hi = _mm_packus_epi16(temp_lo, temp_hi);
- src_ptr += 16;
- // save 16 bytes convolve result
- _mm_store_si128((__m128i*)&dst[i], temp_hi);
- }
- }
- static void scaledconvolve_vert_w16(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride,
- const InterpKernel *y_filters,
- int y0_q4, int y_step_q4, int w, int h) {
- int y;
- int y_q4 = y0_q4;
- src -= src_stride * (SUBPEL_TAPS / 2 - 1);
- for (y = 0; y < h; ++y) {
- const unsigned char *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride];
- const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK];
- if (y_q4 & SUBPEL_MASK) {
- filter_vert_w16_ssse3(src_y, src_stride, &dst[y * dst_stride], y_filter,
- w);
- } else {
- memcpy(&dst[y * dst_stride], &src_y[3 * src_stride], w);
- }
- y_q4 += y_step_q4;
- }
- }
- static void scaledconvolve2d(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride,
- const InterpKernel *const x_filters,
- int x0_q4, int x_step_q4,
- const InterpKernel *const y_filters,
- int y0_q4, int y_step_q4,
- int w, int h) {
- // Note: Fixed size intermediate buffer, temp, places limits on parameters.
- // 2d filtering proceeds in 2 steps:
- // (1) Interpolate horizontally into an intermediate buffer, temp.
- // (2) Interpolate temp vertically to derive the sub-pixel result.
- // Deriving the maximum number of rows in the temp buffer (135):
- // --Smallest scaling factor is x1/2 ==> y_step_q4 = 32 (Normative).
- // --Largest block size is 64x64 pixels.
- // --64 rows in the downscaled frame span a distance of (64 - 1) * 32 in the
- // original frame (in 1/16th pixel units).
- // --Must round-up because block may be located at sub-pixel position.
- // --Require an additional SUBPEL_TAPS rows for the 8-tap filter tails.
- // --((64 - 1) * 32 + 15) >> 4 + 8 = 135.
- // --Require an additional 8 rows for the horiz_w8 transpose tail.
- DECLARE_ALIGNED(16, uint8_t, temp[(135 + 8) * 64]);
- const int intermediate_height =
- (((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS;
- assert(w <= 64);
- assert(h <= 64);
- assert(y_step_q4 <= 32);
- assert(x_step_q4 <= 32);
- if (w >= 8) {
- scaledconvolve_horiz_w8(src - src_stride * (SUBPEL_TAPS / 2 - 1),
- src_stride, temp, 64, x_filters, x0_q4, x_step_q4,
- w, intermediate_height);
- } else {
- scaledconvolve_horiz_w4(src - src_stride * (SUBPEL_TAPS / 2 - 1),
- src_stride, temp, 64, x_filters, x0_q4, x_step_q4,
- w, intermediate_height);
- }
- if (w >= 16) {
- scaledconvolve_vert_w16(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst,
- dst_stride, y_filters, y0_q4, y_step_q4, w, h);
- } else if (w == 8) {
- scaledconvolve_vert_w8(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst,
- dst_stride, y_filters, y0_q4, y_step_q4, w, h);
- } else {
- scaledconvolve_vert_w4(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst,
- dst_stride, y_filters, y0_q4, y_step_q4, w, h);
- }
- }
- static const InterpKernel *get_filter_base(const int16_t *filter) {
- // NOTE: This assumes that the filter table is 256-byte aligned.
- // TODO(agrange) Modify to make independent of table alignment.
- return (const InterpKernel *)(((intptr_t)filter) & ~((intptr_t)0xFF));
- }
- static int get_filter_offset(const int16_t *f, const InterpKernel *base) {
- return (int)((const InterpKernel *)(intptr_t)f - base);
- }
- void vpx_scaled_2d_ssse3(const uint8_t *src, ptrdiff_t src_stride,
- uint8_t *dst, ptrdiff_t dst_stride,
- const int16_t *filter_x, int x_step_q4,
- const int16_t *filter_y, int y_step_q4,
- int w, int h) {
- const InterpKernel *const filters_x = get_filter_base(filter_x);
- const int x0_q4 = get_filter_offset(filter_x, filters_x);
- const InterpKernel *const filters_y = get_filter_base(filter_y);
- const int y0_q4 = get_filter_offset(filter_y, filters_y);
- scaledconvolve2d(src, src_stride, dst, dst_stride,
- filters_x, x0_q4, x_step_q4,
- filters_y, y0_q4, y_step_q4, w, h);
- }
- // void vp9_convolve8_ssse3(const uint8_t *src, ptrdiff_t src_stride,
- // uint8_t *dst, ptrdiff_t dst_stride,
- // const int16_t *filter_x, int x_step_q4,
- // const int16_t *filter_y, int y_step_q4,
- // int w, int h);
- // void vpx_convolve8_avg_ssse3(const uint8_t *src, ptrdiff_t src_stride,
- // uint8_t *dst, ptrdiff_t dst_stride,
- // const int16_t *filter_x, int x_step_q4,
- // const int16_t *filter_y, int y_step_q4,
- // int w, int h);
- FUN_CONV_2D(, ssse3);
- FUN_CONV_2D(avg_ , ssse3);
|