ref: fc5ab625b5f8daa7f9f10667ca022fd404a71f61
dir: libvpx/vpx_dsp/x86/fwd_txfm_sse2.c
/*
* Copyright (c) 2015 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_dsp/vpx_dsp_common.h"
#include "vpx_dsp/x86/fwd_txfm_sse2.h"
void vpx_fdct4x4_1_sse2(const int16_t *input, tran_low_t *output, int stride) {
__m128i in0, in1;
__m128i tmp;
const __m128i zero = _mm_setzero_si128();
in0 = _mm_loadl_epi64((const __m128i *)(input + 0 * stride));
in1 = _mm_loadl_epi64((const __m128i *)(input + 1 * stride));
in1 = _mm_unpacklo_epi64(
in1, _mm_loadl_epi64((const __m128i *)(input + 2 * stride)));
in0 = _mm_unpacklo_epi64(
in0, _mm_loadl_epi64((const __m128i *)(input + 3 * stride)));
tmp = _mm_add_epi16(in0, in1);
in0 = _mm_unpacklo_epi16(zero, tmp);
in1 = _mm_unpackhi_epi16(zero, tmp);
in0 = _mm_srai_epi32(in0, 16);
in1 = _mm_srai_epi32(in1, 16);
tmp = _mm_add_epi32(in0, in1);
in0 = _mm_unpacklo_epi32(tmp, zero);
in1 = _mm_unpackhi_epi32(tmp, zero);
tmp = _mm_add_epi32(in0, in1);
in0 = _mm_srli_si128(tmp, 8);
in1 = _mm_add_epi32(tmp, in0);
in0 = _mm_slli_epi32(in1, 1);
output[0] = (tran_low_t)_mm_cvtsi128_si32(in0);
}
void vpx_fdct8x8_1_sse2(const int16_t *input, tran_low_t *output, int stride) {
__m128i in0 = _mm_load_si128((const __m128i *)(input + 0 * stride));
__m128i in1 = _mm_load_si128((const __m128i *)(input + 1 * stride));
__m128i in2 = _mm_load_si128((const __m128i *)(input + 2 * stride));
__m128i in3 = _mm_load_si128((const __m128i *)(input + 3 * stride));
__m128i u0, u1, sum;
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
in0 = _mm_load_si128((const __m128i *)(input + 4 * stride));
in1 = _mm_load_si128((const __m128i *)(input + 5 * stride));
in2 = _mm_load_si128((const __m128i *)(input + 6 * stride));
in3 = _mm_load_si128((const __m128i *)(input + 7 * stride));
sum = _mm_add_epi16(u0, u1);
in0 = _mm_add_epi16(in0, in1);
in2 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, in0);
u0 = _mm_setzero_si128();
sum = _mm_add_epi16(sum, in2);
in0 = _mm_unpacklo_epi16(u0, sum);
in1 = _mm_unpackhi_epi16(u0, sum);
in0 = _mm_srai_epi32(in0, 16);
in1 = _mm_srai_epi32(in1, 16);
sum = _mm_add_epi32(in0, in1);
in0 = _mm_unpacklo_epi32(sum, u0);
in1 = _mm_unpackhi_epi32(sum, u0);
sum = _mm_add_epi32(in0, in1);
in0 = _mm_srli_si128(sum, 8);
in1 = _mm_add_epi32(sum, in0);
output[0] = (tran_low_t)_mm_cvtsi128_si32(in1);
}
void vpx_fdct16x16_1_sse2(const int16_t *input, tran_low_t *output,
int stride) {
__m128i in0, in1, in2, in3;
__m128i u0, u1;
__m128i sum = _mm_setzero_si128();
int i;
for (i = 0; i < 2; ++i) {
in0 = _mm_load_si128((const __m128i *)(input + 0 * stride + 0));
in1 = _mm_load_si128((const __m128i *)(input + 0 * stride + 8));
in2 = _mm_load_si128((const __m128i *)(input + 1 * stride + 0));
in3 = _mm_load_si128((const __m128i *)(input + 1 * stride + 8));
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, u0);
in0 = _mm_load_si128((const __m128i *)(input + 2 * stride + 0));
in1 = _mm_load_si128((const __m128i *)(input + 2 * stride + 8));
in2 = _mm_load_si128((const __m128i *)(input + 3 * stride + 0));
in3 = _mm_load_si128((const __m128i *)(input + 3 * stride + 8));
sum = _mm_add_epi16(sum, u1);
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, u0);
in0 = _mm_load_si128((const __m128i *)(input + 4 * stride + 0));
in1 = _mm_load_si128((const __m128i *)(input + 4 * stride + 8));
in2 = _mm_load_si128((const __m128i *)(input + 5 * stride + 0));
in3 = _mm_load_si128((const __m128i *)(input + 5 * stride + 8));
sum = _mm_add_epi16(sum, u1);
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, u0);
in0 = _mm_load_si128((const __m128i *)(input + 6 * stride + 0));
in1 = _mm_load_si128((const __m128i *)(input + 6 * stride + 8));
in2 = _mm_load_si128((const __m128i *)(input + 7 * stride + 0));
in3 = _mm_load_si128((const __m128i *)(input + 7 * stride + 8));
sum = _mm_add_epi16(sum, u1);
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, u0);
sum = _mm_add_epi16(sum, u1);
input += 8 * stride;
}
u0 = _mm_setzero_si128();
in0 = _mm_unpacklo_epi16(u0, sum);
in1 = _mm_unpackhi_epi16(u0, sum);
in0 = _mm_srai_epi32(in0, 16);
in1 = _mm_srai_epi32(in1, 16);
sum = _mm_add_epi32(in0, in1);
in0 = _mm_unpacklo_epi32(sum, u0);
in1 = _mm_unpackhi_epi32(sum, u0);
sum = _mm_add_epi32(in0, in1);
in0 = _mm_srli_si128(sum, 8);
in1 = _mm_add_epi32(sum, in0);
in1 = _mm_srai_epi32(in1, 1);
output[0] = (tran_low_t)_mm_cvtsi128_si32(in1);
}
void vpx_fdct32x32_1_sse2(const int16_t *input, tran_low_t *output,
int stride) {
__m128i in0, in1, in2, in3;
__m128i u0, u1;
__m128i sum = _mm_setzero_si128();
int i;
for (i = 0; i < 8; ++i) {
in0 = _mm_load_si128((const __m128i *)(input + 0));
in1 = _mm_load_si128((const __m128i *)(input + 8));
in2 = _mm_load_si128((const __m128i *)(input + 16));
in3 = _mm_load_si128((const __m128i *)(input + 24));
input += stride;
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, u0);
in0 = _mm_load_si128((const __m128i *)(input + 0));
in1 = _mm_load_si128((const __m128i *)(input + 8));
in2 = _mm_load_si128((const __m128i *)(input + 16));
in3 = _mm_load_si128((const __m128i *)(input + 24));
input += stride;
sum = _mm_add_epi16(sum, u1);
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, u0);
in0 = _mm_load_si128((const __m128i *)(input + 0));
in1 = _mm_load_si128((const __m128i *)(input + 8));
in2 = _mm_load_si128((const __m128i *)(input + 16));
in3 = _mm_load_si128((const __m128i *)(input + 24));
input += stride;
sum = _mm_add_epi16(sum, u1);
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, u0);
in0 = _mm_load_si128((const __m128i *)(input + 0));
in1 = _mm_load_si128((const __m128i *)(input + 8));
in2 = _mm_load_si128((const __m128i *)(input + 16));
in3 = _mm_load_si128((const __m128i *)(input + 24));
input += stride;
sum = _mm_add_epi16(sum, u1);
u0 = _mm_add_epi16(in0, in1);
u1 = _mm_add_epi16(in2, in3);
sum = _mm_add_epi16(sum, u0);
sum = _mm_add_epi16(sum, u1);
}
u0 = _mm_setzero_si128();
in0 = _mm_unpacklo_epi16(u0, sum);
in1 = _mm_unpackhi_epi16(u0, sum);
in0 = _mm_srai_epi32(in0, 16);
in1 = _mm_srai_epi32(in1, 16);
sum = _mm_add_epi32(in0, in1);
in0 = _mm_unpacklo_epi32(sum, u0);
in1 = _mm_unpackhi_epi32(sum, u0);
sum = _mm_add_epi32(in0, in1);
in0 = _mm_srli_si128(sum, 8);
in1 = _mm_add_epi32(sum, in0);
in1 = _mm_srai_epi32(in1, 3);
output[0] = (tran_low_t)_mm_cvtsi128_si32(in1);
}
#define DCT_HIGH_BIT_DEPTH 0
#define FDCT4x4_2D vpx_fdct4x4_sse2
#define FDCT8x8_2D vpx_fdct8x8_sse2
#define FDCT16x16_2D vpx_fdct16x16_sse2
#include "vpx_dsp/x86/fwd_txfm_impl_sse2.h"
#undef FDCT4x4_2D
#undef FDCT8x8_2D
#undef FDCT16x16_2D
#define FDCT32x32_2D vpx_fdct32x32_rd_sse2
#define FDCT32x32_HIGH_PRECISION 0
#include "vpx_dsp/x86/fwd_dct32x32_impl_sse2.h"
#undef FDCT32x32_2D
#undef FDCT32x32_HIGH_PRECISION
#define FDCT32x32_2D vpx_fdct32x32_sse2
#define FDCT32x32_HIGH_PRECISION 1
#include "vpx_dsp/x86/fwd_dct32x32_impl_sse2.h" // NOLINT
#undef FDCT32x32_2D
#undef FDCT32x32_HIGH_PRECISION
#undef DCT_HIGH_BIT_DEPTH
#if CONFIG_VP9_HIGHBITDEPTH
#define DCT_HIGH_BIT_DEPTH 1
#define FDCT4x4_2D vpx_highbd_fdct4x4_sse2
#define FDCT8x8_2D vpx_highbd_fdct8x8_sse2
#define FDCT16x16_2D vpx_highbd_fdct16x16_sse2
#include "vpx_dsp/x86/fwd_txfm_impl_sse2.h" // NOLINT
#undef FDCT4x4_2D
#undef FDCT8x8_2D
#undef FDCT16x16_2D
#define FDCT32x32_2D vpx_highbd_fdct32x32_rd_sse2
#define FDCT32x32_HIGH_PRECISION 0
#include "vpx_dsp/x86/fwd_dct32x32_impl_sse2.h" // NOLINT
#undef FDCT32x32_2D
#undef FDCT32x32_HIGH_PRECISION
#define FDCT32x32_2D vpx_highbd_fdct32x32_sse2
#define FDCT32x32_HIGH_PRECISION 1
#include "vpx_dsp/x86/fwd_dct32x32_impl_sse2.h" // NOLINT
#undef FDCT32x32_2D
#undef FDCT32x32_HIGH_PRECISION
#undef DCT_HIGH_BIT_DEPTH
#endif // CONFIG_VP9_HIGHBITDEPTH