228 lines
8.8 KiB
C
228 lines
8.8 KiB
C
/*
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* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_
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#define VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_
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#include <emmintrin.h> // SSE2
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_dsp/inv_txfm.h"
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#include "vpx_dsp/x86/txfm_common_sse2.h"
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static INLINE void extend_64bit(const __m128i in,
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__m128i *const out /*out[2]*/) {
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out[0] = _mm_unpacklo_epi32(in, in); // 0, 0, 1, 1
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out[1] = _mm_unpackhi_epi32(in, in); // 2, 2, 3, 3
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}
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static INLINE __m128i wraplow_16bit_shift4(const __m128i in0, const __m128i in1,
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const __m128i rounding) {
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__m128i temp[2];
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temp[0] = _mm_add_epi32(in0, rounding);
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temp[1] = _mm_add_epi32(in1, rounding);
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temp[0] = _mm_srai_epi32(temp[0], 4);
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temp[1] = _mm_srai_epi32(temp[1], 4);
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return _mm_packs_epi32(temp[0], temp[1]);
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}
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static INLINE __m128i wraplow_16bit_shift5(const __m128i in0, const __m128i in1,
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const __m128i rounding) {
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__m128i temp[2];
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temp[0] = _mm_add_epi32(in0, rounding);
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temp[1] = _mm_add_epi32(in1, rounding);
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temp[0] = _mm_srai_epi32(temp[0], 5);
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temp[1] = _mm_srai_epi32(temp[1], 5);
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return _mm_packs_epi32(temp[0], temp[1]);
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}
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static INLINE __m128i dct_const_round_shift_64bit(const __m128i in) {
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const __m128i t =
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_mm_add_epi64(in, pair_set_epi32(DCT_CONST_ROUNDING << 2, 0));
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return _mm_srli_si128(t, 2);
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}
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static INLINE __m128i pack_4(const __m128i in0, const __m128i in1) {
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const __m128i t0 = _mm_unpacklo_epi32(in0, in1); // 0, 2
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const __m128i t1 = _mm_unpackhi_epi32(in0, in1); // 1, 3
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return _mm_unpacklo_epi32(t0, t1); // 0, 1, 2, 3
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}
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static INLINE void abs_extend_64bit_sse2(const __m128i in,
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__m128i *const out /*out[2]*/,
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__m128i *const sign /*sign[2]*/) {
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sign[0] = _mm_srai_epi32(in, 31);
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out[0] = _mm_xor_si128(in, sign[0]);
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out[0] = _mm_sub_epi32(out[0], sign[0]);
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sign[1] = _mm_unpackhi_epi32(sign[0], sign[0]); // 64-bit sign of 2, 3
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sign[0] = _mm_unpacklo_epi32(sign[0], sign[0]); // 64-bit sign of 0, 1
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out[1] = _mm_unpackhi_epi32(out[0], out[0]); // 2, 3
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out[0] = _mm_unpacklo_epi32(out[0], out[0]); // 0, 1
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}
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// Note: cospi must be non negative.
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static INLINE __m128i multiply_apply_sign_sse2(const __m128i in,
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const __m128i sign,
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const __m128i cospi) {
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__m128i out = _mm_mul_epu32(in, cospi);
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out = _mm_xor_si128(out, sign);
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return _mm_sub_epi64(out, sign);
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}
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// Note: c must be non negative.
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static INLINE __m128i multiplication_round_shift_sse2(
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const __m128i *const in /*in[2]*/, const __m128i *const sign /*sign[2]*/,
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const int c) {
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const __m128i pair_c = pair_set_epi32(c << 2, 0);
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__m128i t0, t1;
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t0 = multiply_apply_sign_sse2(in[0], sign[0], pair_c);
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t1 = multiply_apply_sign_sse2(in[1], sign[1], pair_c);
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t0 = dct_const_round_shift_64bit(t0);
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t1 = dct_const_round_shift_64bit(t1);
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return pack_4(t0, t1);
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}
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// Note: c0 and c1 must be non negative.
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static INLINE void highbd_multiplication_and_add_sse2(
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const __m128i in0, const __m128i in1, const int c0, const int c1,
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__m128i *const out0, __m128i *const out1) {
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const __m128i pair_c0 = pair_set_epi32(c0 << 2, 0);
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const __m128i pair_c1 = pair_set_epi32(c1 << 2, 0);
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__m128i temp1[4], temp2[4], sign1[4], sign2[4];
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abs_extend_64bit_sse2(in0, temp1, sign1);
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abs_extend_64bit_sse2(in1, temp2, sign2);
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temp1[2] = multiply_apply_sign_sse2(temp1[0], sign1[0], pair_c1);
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temp1[3] = multiply_apply_sign_sse2(temp1[1], sign1[1], pair_c1);
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temp1[0] = multiply_apply_sign_sse2(temp1[0], sign1[0], pair_c0);
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temp1[1] = multiply_apply_sign_sse2(temp1[1], sign1[1], pair_c0);
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temp2[2] = multiply_apply_sign_sse2(temp2[0], sign2[0], pair_c0);
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temp2[3] = multiply_apply_sign_sse2(temp2[1], sign2[1], pair_c0);
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temp2[0] = multiply_apply_sign_sse2(temp2[0], sign2[0], pair_c1);
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temp2[1] = multiply_apply_sign_sse2(temp2[1], sign2[1], pair_c1);
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temp1[0] = _mm_sub_epi64(temp1[0], temp2[0]);
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temp1[1] = _mm_sub_epi64(temp1[1], temp2[1]);
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temp2[0] = _mm_add_epi64(temp1[2], temp2[2]);
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temp2[1] = _mm_add_epi64(temp1[3], temp2[3]);
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temp1[0] = dct_const_round_shift_64bit(temp1[0]);
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temp1[1] = dct_const_round_shift_64bit(temp1[1]);
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temp2[0] = dct_const_round_shift_64bit(temp2[0]);
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temp2[1] = dct_const_round_shift_64bit(temp2[1]);
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*out0 = pack_4(temp1[0], temp1[1]);
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*out1 = pack_4(temp2[0], temp2[1]);
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}
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static INLINE void highbd_idct8_stage4(const __m128i *const in,
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__m128i *const out) {
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out[0] = _mm_add_epi32(in[0], in[7]);
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out[1] = _mm_add_epi32(in[1], in[6]);
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out[2] = _mm_add_epi32(in[2], in[5]);
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out[3] = _mm_add_epi32(in[3], in[4]);
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out[4] = _mm_sub_epi32(in[3], in[4]);
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out[5] = _mm_sub_epi32(in[2], in[5]);
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out[6] = _mm_sub_epi32(in[1], in[6]);
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out[7] = _mm_sub_epi32(in[0], in[7]);
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}
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static INLINE void highbd_idct8x8_final_round(__m128i *const io) {
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io[0] = wraplow_16bit_shift5(io[0], io[8], _mm_set1_epi32(16));
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io[1] = wraplow_16bit_shift5(io[1], io[9], _mm_set1_epi32(16));
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io[2] = wraplow_16bit_shift5(io[2], io[10], _mm_set1_epi32(16));
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io[3] = wraplow_16bit_shift5(io[3], io[11], _mm_set1_epi32(16));
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io[4] = wraplow_16bit_shift5(io[4], io[12], _mm_set1_epi32(16));
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io[5] = wraplow_16bit_shift5(io[5], io[13], _mm_set1_epi32(16));
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io[6] = wraplow_16bit_shift5(io[6], io[14], _mm_set1_epi32(16));
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io[7] = wraplow_16bit_shift5(io[7], io[15], _mm_set1_epi32(16));
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}
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static INLINE __m128i add_clamp(const __m128i in0, const __m128i in1,
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const int bd) {
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const __m128i zero = _mm_set1_epi16(0);
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// Faster than _mm_set1_epi16((1 << bd) - 1).
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const __m128i one = _mm_set1_epi16(1);
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const __m128i max = _mm_sub_epi16(_mm_slli_epi16(one, bd), one);
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__m128i d;
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d = _mm_adds_epi16(in0, in1);
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d = _mm_max_epi16(d, zero);
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d = _mm_min_epi16(d, max);
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return d;
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}
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static INLINE void highbd_idct_1_add_kernel(const tran_low_t *input,
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uint16_t *dest, int stride, int bd,
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const int size) {
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int a1, i, j;
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tran_low_t out;
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__m128i dc, d;
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out = HIGHBD_WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), bd);
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out = HIGHBD_WRAPLOW(dct_const_round_shift(out * cospi_16_64), bd);
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a1 = ROUND_POWER_OF_TWO(out, (size == 8) ? 5 : 6);
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dc = _mm_set1_epi16(a1);
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for (i = 0; i < size; ++i) {
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for (j = 0; j < (size >> 3); ++j) {
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d = _mm_load_si128((const __m128i *)(&dest[j * 8]));
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d = add_clamp(d, dc, bd);
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_mm_store_si128((__m128i *)(&dest[j * 8]), d);
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}
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dest += stride;
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}
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}
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static INLINE void recon_and_store_4_dual(const __m128i in,
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uint16_t *const dest,
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const int stride, const int bd) {
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__m128i d;
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d = _mm_loadl_epi64((const __m128i *)(dest + 0 * stride));
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d = _mm_castps_si128(
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_mm_loadh_pi(_mm_castsi128_ps(d), (const __m64 *)(dest + 1 * stride)));
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d = add_clamp(d, in, bd);
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_mm_storel_epi64((__m128i *)(dest + 0 * stride), d);
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_mm_storeh_pi((__m64 *)(dest + 1 * stride), _mm_castsi128_ps(d));
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}
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static INLINE void recon_and_store_4(const __m128i *const in, uint16_t *dest,
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const int stride, const int bd) {
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recon_and_store_4_dual(in[0], dest, stride, bd);
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dest += 2 * stride;
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recon_and_store_4_dual(in[1], dest, stride, bd);
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}
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static INLINE void recon_and_store_8_kernel(const __m128i in,
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uint16_t **const dest,
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const int stride, const int bd) {
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__m128i d;
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d = _mm_load_si128((const __m128i *)(*dest));
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d = add_clamp(d, in, bd);
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_mm_store_si128((__m128i *)(*dest), d);
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*dest += stride;
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}
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static INLINE void recon_and_store_8(const __m128i *const in, uint16_t *dest,
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const int stride, const int bd) {
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recon_and_store_8_kernel(in[0], &dest, stride, bd);
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recon_and_store_8_kernel(in[1], &dest, stride, bd);
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recon_and_store_8_kernel(in[2], &dest, stride, bd);
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recon_and_store_8_kernel(in[3], &dest, stride, bd);
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recon_and_store_8_kernel(in[4], &dest, stride, bd);
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recon_and_store_8_kernel(in[5], &dest, stride, bd);
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recon_and_store_8_kernel(in[6], &dest, stride, bd);
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recon_and_store_8_kernel(in[7], &dest, stride, bd);
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}
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#endif // VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_
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