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/*
* Copyright (c) 2018, 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.
*/
#ifndef AOM_AV1_ENCODER_X86_AV1_TXFM1D_SSE4_H_
#define AOM_AV1_ENCODER_X86_AV1_TXFM1D_SSE4_H_
#include <smmintrin.h>
#include "av1/common/av1_txfm.h"
#include "av1/common/x86/av1_txfm_sse4.h"
#ifdef __cplusplus
extern "C" {
#endif
void av1_fdct32_sse4_1(__m128i *input, __m128i *output, int cos_bit,
const int stride);
void av1_fdct64_sse4_1(__m128i *input, __m128i *output, int8_t cos_bit,
const int instride, const int outstride);
void av1_idtx32_sse4_1(__m128i *input, __m128i *output, int cos_bit,
const int col_num);
static inline void transpose_32_4x4(int stride, const __m128i *input,
__m128i *output) {
__m128i temp0 = _mm_unpacklo_epi32(input[0 * stride], input[2 * stride]);
__m128i temp1 = _mm_unpackhi_epi32(input[0 * stride], input[2 * stride]);
__m128i temp2 = _mm_unpacklo_epi32(input[1 * stride], input[3 * stride]);
__m128i temp3 = _mm_unpackhi_epi32(input[1 * stride], input[3 * stride]);
output[0 * stride] = _mm_unpacklo_epi32(temp0, temp2);
output[1 * stride] = _mm_unpackhi_epi32(temp0, temp2);
output[2 * stride] = _mm_unpacklo_epi32(temp1, temp3);
output[3 * stride] = _mm_unpackhi_epi32(temp1, temp3);
}
// the entire input block can be represent by a grid of 4x4 blocks
// each 4x4 blocks can be represent by 4 vertical __m128i
// we first transpose each 4x4 block internally
// then transpose the grid
static inline void transpose_32(int txfm_size, const __m128i *input,
__m128i *output) {
const int num_per_128 = 4;
const int row_size = txfm_size;
const int col_size = txfm_size / num_per_128;
int r, c;
// transpose each 4x4 block internally
for (r = 0; r < row_size; r += 4) {
for (c = 0; c < col_size; c++) {
transpose_32_4x4(col_size, &input[r * col_size + c],
&output[c * 4 * col_size + r / 4]);
}
}
}
// out0 = in0*w0 + in1*w1
// out1 = -in1*w0 + in0*w1
#define btf_32_sse4_1_type0(w0, w1, in0, in1, out0, out1, bit) \
do { \
const __m128i ww0 = _mm_set1_epi32(w0); \
const __m128i ww1 = _mm_set1_epi32(w1); \
const __m128i in0_w0 = _mm_mullo_epi32(in0, ww0); \
const __m128i in1_w1 = _mm_mullo_epi32(in1, ww1); \
out0 = _mm_add_epi32(in0_w0, in1_w1); \
out0 = av1_round_shift_32_sse4_1(out0, bit); \
const __m128i in0_w1 = _mm_mullo_epi32(in0, ww1); \
const __m128i in1_w0 = _mm_mullo_epi32(in1, ww0); \
out1 = _mm_sub_epi32(in0_w1, in1_w0); \
out1 = av1_round_shift_32_sse4_1(out1, bit); \
} while (0)
// out0 = in0*w0 + in1*w1
// out1 = in1*w0 - in0*w1
#define btf_32_sse4_1_type1(w0, w1, in0, in1, out0, out1, bit) \
do { \
btf_32_sse4_1_type0(w1, w0, in1, in0, out0, out1, bit); \
} while (0)
// out0 = in0*w0 + in1*w1
// out1 = -in1*w0 + in0*w1
#define btf_32_type0_sse4_1_new(ww0, ww1, in0, in1, out0, out1, r, bit) \
do { \
const __m128i in0_w0 = _mm_mullo_epi32(in0, ww0); \
const __m128i in1_w1 = _mm_mullo_epi32(in1, ww1); \
out0 = _mm_add_epi32(in0_w0, in1_w1); \
out0 = _mm_add_epi32(out0, r); \
out0 = _mm_srai_epi32(out0, bit); \
const __m128i in0_w1 = _mm_mullo_epi32(in0, ww1); \
const __m128i in1_w0 = _mm_mullo_epi32(in1, ww0); \
out1 = _mm_sub_epi32(in0_w1, in1_w0); \
out1 = _mm_add_epi32(out1, r); \
out1 = _mm_srai_epi32(out1, bit); \
} while (0)
// out0 = in0*w0 + in1*w1
// out1 = in1*w0 - in0*w1
#define btf_32_type1_sse4_1_new(ww0, ww1, in0, in1, out0, out1, r, bit) \
do { \
btf_32_type0_sse4_1_new(ww1, ww0, in1, in0, out0, out1, r, bit); \
} while (0)
#ifdef __cplusplus
}
#endif
#endif // AOM_AV1_ENCODER_X86_AV1_TXFM1D_SSE4_H_