ref: 4fa0727fbcf9bb790139fa34b10d610af824a7ef
dir: /vpx_dsp/x86/inv_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_dsp_rtcd.h" #include "vpx_dsp/x86/inv_txfm_sse2.h" #include "vpx_dsp/x86/transpose_sse2.h" #include "vpx_dsp/x86/txfm_common_sse2.h" static INLINE void transpose_16bit_4(__m128i *res) { const __m128i tr0_0 = _mm_unpacklo_epi16(res[0], res[1]); const __m128i tr0_1 = _mm_unpackhi_epi16(res[0], res[1]); res[0] = _mm_unpacklo_epi16(tr0_0, tr0_1); res[1] = _mm_unpackhi_epi16(tr0_0, tr0_1); } void vpx_idct4x4_16_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { const __m128i eight = _mm_set1_epi16(8); __m128i in[2]; // Rows in[0] = load_input_data8(input); in[1] = load_input_data8(input + 8); idct4_sse2(in); // Columns idct4_sse2(in); // Final round and shift in[0] = _mm_add_epi16(in[0], eight); in[1] = _mm_add_epi16(in[1], eight); in[0] = _mm_srai_epi16(in[0], 4); in[1] = _mm_srai_epi16(in[1], 4); recon_and_store4x4_sse2(in, dest, stride); } void vpx_idct4x4_1_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { const __m128i zero = _mm_setzero_si128(); int a; __m128i dc_value, d[2]; a = (int)dct_const_round_shift((int16_t)input[0] * cospi_16_64); a = (int)dct_const_round_shift(a * cospi_16_64); a = ROUND_POWER_OF_TWO(a, 4); dc_value = _mm_set1_epi16(a); // Reconstruction and Store d[0] = _mm_cvtsi32_si128(*(const int *)(dest)); d[1] = _mm_cvtsi32_si128(*(const int *)(dest + stride * 3)); d[0] = _mm_unpacklo_epi32(d[0], _mm_cvtsi32_si128(*(const int *)(dest + stride))); d[1] = _mm_unpacklo_epi32( _mm_cvtsi32_si128(*(const int *)(dest + stride * 2)), d[1]); d[0] = _mm_unpacklo_epi8(d[0], zero); d[1] = _mm_unpacklo_epi8(d[1], zero); d[0] = _mm_add_epi16(d[0], dc_value); d[1] = _mm_add_epi16(d[1], dc_value); d[0] = _mm_packus_epi16(d[0], d[1]); *(int *)dest = _mm_cvtsi128_si32(d[0]); d[0] = _mm_srli_si128(d[0], 4); *(int *)(dest + stride) = _mm_cvtsi128_si32(d[0]); d[0] = _mm_srli_si128(d[0], 4); *(int *)(dest + stride * 2) = _mm_cvtsi128_si32(d[0]); d[0] = _mm_srli_si128(d[0], 4); *(int *)(dest + stride * 3) = _mm_cvtsi128_si32(d[0]); } void idct4_sse2(__m128i *const in) { const __m128i k__cospi_p16_p16 = pair_set_epi16(cospi_16_64, cospi_16_64); const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64); const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64); const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64); __m128i u[2]; transpose_16bit_4(in); // stage 1 u[0] = _mm_unpacklo_epi16(in[0], in[1]); u[1] = _mm_unpackhi_epi16(in[0], in[1]); u[0] = idct_calc_wraplow_sse2(k__cospi_p16_p16, k__cospi_p16_m16, u[0]); u[1] = idct_calc_wraplow_sse2(k__cospi_p08_p24, k__cospi_p24_m08, u[1]); // stage 2 in[0] = _mm_add_epi16(u[0], u[1]); in[1] = _mm_sub_epi16(u[0], u[1]); in[1] = _mm_shuffle_epi32(in[1], 0x4E); } void iadst4_sse2(__m128i *const in) { const __m128i k__sinpi_1_3 = pair_set_epi16(sinpi_1_9, sinpi_3_9); const __m128i k__sinpi_4_2 = pair_set_epi16(sinpi_4_9, sinpi_2_9); const __m128i k__sinpi_2_3 = pair_set_epi16(sinpi_2_9, sinpi_3_9); const __m128i k__sinpi_1_4 = pair_set_epi16(sinpi_1_9, sinpi_4_9); const __m128i k__sinpi_12_n3 = pair_set_epi16(sinpi_1_9 + sinpi_2_9, -sinpi_3_9); __m128i u[4], v[5]; // 00 01 20 21 02 03 22 23 // 10 11 30 31 12 13 32 33 const __m128i tr0_0 = _mm_unpacklo_epi32(in[0], in[1]); const __m128i tr0_1 = _mm_unpackhi_epi32(in[0], in[1]); // 00 01 10 11 20 21 30 31 // 02 03 12 13 22 23 32 33 in[0] = _mm_unpacklo_epi32(tr0_0, tr0_1); in[1] = _mm_unpackhi_epi32(tr0_0, tr0_1); v[0] = _mm_madd_epi16(in[0], k__sinpi_1_3); // s_1 * x0 + s_3 * x1 v[1] = _mm_madd_epi16(in[1], k__sinpi_4_2); // s_4 * x2 + s_2 * x3 v[2] = _mm_madd_epi16(in[0], k__sinpi_2_3); // s_2 * x0 + s_3 * x1 v[3] = _mm_madd_epi16(in[1], k__sinpi_1_4); // s_1 * x2 + s_4 * x3 v[4] = _mm_madd_epi16(in[0], k__sinpi_12_n3); // (s_1 + s_2) * x0 - s_3 * x1 in[0] = _mm_sub_epi16(in[0], in[1]); // x0 - x2 in[1] = _mm_srli_epi32(in[1], 16); in[0] = _mm_add_epi16(in[0], in[1]); in[0] = _mm_slli_epi32(in[0], 16); // x0 - x2 + x3 u[0] = _mm_add_epi32(v[0], v[1]); u[1] = _mm_sub_epi32(v[2], v[3]); u[2] = _mm_madd_epi16(in[0], k__sinpi_1_3); u[3] = _mm_sub_epi32(v[1], v[3]); u[3] = _mm_add_epi32(u[3], v[4]); u[0] = dct_const_round_shift_sse2(u[0]); u[1] = dct_const_round_shift_sse2(u[1]); u[2] = dct_const_round_shift_sse2(u[2]); u[3] = dct_const_round_shift_sse2(u[3]); in[0] = _mm_packs_epi32(u[0], u[1]); in[1] = _mm_packs_epi32(u[2], u[3]); } static INLINE void load_buffer_8x8(const tran_low_t *const input, __m128i *const in) { in[0] = load_input_data8(input + 0 * 8); in[1] = load_input_data8(input + 1 * 8); in[2] = load_input_data8(input + 2 * 8); in[3] = load_input_data8(input + 3 * 8); in[4] = load_input_data8(input + 4 * 8); in[5] = load_input_data8(input + 5 * 8); in[6] = load_input_data8(input + 6 * 8); in[7] = load_input_data8(input + 7 * 8); } void vpx_idct8x8_64_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i in[8]; int i; // Load input data. load_buffer_8x8(input, in); // 2-D for (i = 0; i < 2; i++) { vpx_idct8_sse2(in); } write_buffer_8x8(in, dest, stride); } void vpx_idct8x8_12_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i io[8]; io[0] = load_input_data4(input + 0 * 8); io[1] = load_input_data4(input + 1 * 8); io[2] = load_input_data4(input + 2 * 8); io[3] = load_input_data4(input + 3 * 8); idct8x8_12_add_kernel_sse2(io); write_buffer_8x8(io, dest, stride); } static INLINE void recon_and_store_8_dual(uint8_t *const dest, const __m128i in_x, const int stride) { const __m128i zero = _mm_setzero_si128(); __m128i d0, d1; d0 = _mm_loadl_epi64((__m128i *)(dest + 0 * stride)); d1 = _mm_loadl_epi64((__m128i *)(dest + 1 * stride)); d0 = _mm_unpacklo_epi8(d0, zero); d1 = _mm_unpacklo_epi8(d1, zero); d0 = _mm_add_epi16(in_x, d0); d1 = _mm_add_epi16(in_x, d1); d0 = _mm_packus_epi16(d0, d1); _mm_storel_epi64((__m128i *)(dest + 0 * stride), d0); _mm_storeh_pi((__m64 *)(dest + 1 * stride), _mm_castsi128_ps(d0)); } void vpx_idct8x8_1_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i dc_value; tran_high_t a1; tran_low_t out = WRAPLOW(dct_const_round_shift((int16_t)input[0] * cospi_16_64)); out = WRAPLOW(dct_const_round_shift(out * cospi_16_64)); a1 = ROUND_POWER_OF_TWO(out, 5); dc_value = _mm_set1_epi16((int16_t)a1); recon_and_store_8_dual(dest, dc_value, stride); dest += 2 * stride; recon_and_store_8_dual(dest, dc_value, stride); dest += 2 * stride; recon_and_store_8_dual(dest, dc_value, stride); dest += 2 * stride; recon_and_store_8_dual(dest, dc_value, stride); } void vpx_idct8_sse2(__m128i *const in) { // 8x8 Transpose is copied from vpx_fdct8x8_sse2() transpose_16bit_8x8(in, in); // 4-stage 1D idct8x8 idct8(in, in); } void iadst8_sse2(__m128i *const in) { const __m128i k__cospi_p02_p30 = pair_set_epi16(cospi_2_64, cospi_30_64); const __m128i k__cospi_p30_m02 = pair_set_epi16(cospi_30_64, -cospi_2_64); const __m128i k__cospi_p10_p22 = pair_set_epi16(cospi_10_64, cospi_22_64); const __m128i k__cospi_p22_m10 = pair_set_epi16(cospi_22_64, -cospi_10_64); const __m128i k__cospi_p18_p14 = pair_set_epi16(cospi_18_64, cospi_14_64); const __m128i k__cospi_p14_m18 = pair_set_epi16(cospi_14_64, -cospi_18_64); const __m128i k__cospi_p26_p06 = pair_set_epi16(cospi_26_64, cospi_6_64); const __m128i k__cospi_p06_m26 = pair_set_epi16(cospi_6_64, -cospi_26_64); const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64); const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64); const __m128i k__cospi_m24_p08 = pair_set_epi16(-cospi_24_64, cospi_8_64); const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64); const __m128i k__cospi_p16_p16 = _mm_set1_epi16(cospi_16_64); const __m128i kZero = _mm_set1_epi16(0); __m128i s[8], u[16], v[8], w[16]; // transpose transpose_16bit_8x8(in, in); // column transformation // stage 1 // interleave and multiply/add into 32-bit integer s[0] = _mm_unpacklo_epi16(in[7], in[0]); s[1] = _mm_unpackhi_epi16(in[7], in[0]); s[2] = _mm_unpacklo_epi16(in[5], in[2]); s[3] = _mm_unpackhi_epi16(in[5], in[2]); s[4] = _mm_unpacklo_epi16(in[3], in[4]); s[5] = _mm_unpackhi_epi16(in[3], in[4]); s[6] = _mm_unpacklo_epi16(in[1], in[6]); s[7] = _mm_unpackhi_epi16(in[1], in[6]); u[0] = _mm_madd_epi16(s[0], k__cospi_p02_p30); u[1] = _mm_madd_epi16(s[1], k__cospi_p02_p30); u[2] = _mm_madd_epi16(s[0], k__cospi_p30_m02); u[3] = _mm_madd_epi16(s[1], k__cospi_p30_m02); u[4] = _mm_madd_epi16(s[2], k__cospi_p10_p22); u[5] = _mm_madd_epi16(s[3], k__cospi_p10_p22); u[6] = _mm_madd_epi16(s[2], k__cospi_p22_m10); u[7] = _mm_madd_epi16(s[3], k__cospi_p22_m10); u[8] = _mm_madd_epi16(s[4], k__cospi_p18_p14); u[9] = _mm_madd_epi16(s[5], k__cospi_p18_p14); u[10] = _mm_madd_epi16(s[4], k__cospi_p14_m18); u[11] = _mm_madd_epi16(s[5], k__cospi_p14_m18); u[12] = _mm_madd_epi16(s[6], k__cospi_p26_p06); u[13] = _mm_madd_epi16(s[7], k__cospi_p26_p06); u[14] = _mm_madd_epi16(s[6], k__cospi_p06_m26); u[15] = _mm_madd_epi16(s[7], k__cospi_p06_m26); // addition w[0] = _mm_add_epi32(u[0], u[8]); w[1] = _mm_add_epi32(u[1], u[9]); w[2] = _mm_add_epi32(u[2], u[10]); w[3] = _mm_add_epi32(u[3], u[11]); w[4] = _mm_add_epi32(u[4], u[12]); w[5] = _mm_add_epi32(u[5], u[13]); w[6] = _mm_add_epi32(u[6], u[14]); w[7] = _mm_add_epi32(u[7], u[15]); w[8] = _mm_sub_epi32(u[0], u[8]); w[9] = _mm_sub_epi32(u[1], u[9]); w[10] = _mm_sub_epi32(u[2], u[10]); w[11] = _mm_sub_epi32(u[3], u[11]); w[12] = _mm_sub_epi32(u[4], u[12]); w[13] = _mm_sub_epi32(u[5], u[13]); w[14] = _mm_sub_epi32(u[6], u[14]); w[15] = _mm_sub_epi32(u[7], u[15]); // shift and rounding u[0] = dct_const_round_shift_sse2(w[0]); u[1] = dct_const_round_shift_sse2(w[1]); u[2] = dct_const_round_shift_sse2(w[2]); u[3] = dct_const_round_shift_sse2(w[3]); u[4] = dct_const_round_shift_sse2(w[4]); u[5] = dct_const_round_shift_sse2(w[5]); u[6] = dct_const_round_shift_sse2(w[6]); u[7] = dct_const_round_shift_sse2(w[7]); u[8] = dct_const_round_shift_sse2(w[8]); u[9] = dct_const_round_shift_sse2(w[9]); u[10] = dct_const_round_shift_sse2(w[10]); u[11] = dct_const_round_shift_sse2(w[11]); u[12] = dct_const_round_shift_sse2(w[12]); u[13] = dct_const_round_shift_sse2(w[13]); u[14] = dct_const_round_shift_sse2(w[14]); u[15] = dct_const_round_shift_sse2(w[15]); // back to 16-bit and pack 8 integers into __m128i in[0] = _mm_packs_epi32(u[0], u[1]); in[1] = _mm_packs_epi32(u[2], u[3]); in[2] = _mm_packs_epi32(u[4], u[5]); in[3] = _mm_packs_epi32(u[6], u[7]); in[4] = _mm_packs_epi32(u[8], u[9]); in[5] = _mm_packs_epi32(u[10], u[11]); in[6] = _mm_packs_epi32(u[12], u[13]); in[7] = _mm_packs_epi32(u[14], u[15]); // stage 2 s[0] = _mm_add_epi16(in[0], in[2]); s[1] = _mm_add_epi16(in[1], in[3]); s[2] = _mm_sub_epi16(in[0], in[2]); s[3] = _mm_sub_epi16(in[1], in[3]); u[0] = _mm_unpacklo_epi16(in[4], in[5]); u[1] = _mm_unpackhi_epi16(in[4], in[5]); u[2] = _mm_unpacklo_epi16(in[6], in[7]); u[3] = _mm_unpackhi_epi16(in[6], in[7]); v[0] = _mm_madd_epi16(u[0], k__cospi_p08_p24); v[1] = _mm_madd_epi16(u[1], k__cospi_p08_p24); v[2] = _mm_madd_epi16(u[0], k__cospi_p24_m08); v[3] = _mm_madd_epi16(u[1], k__cospi_p24_m08); v[4] = _mm_madd_epi16(u[2], k__cospi_m24_p08); v[5] = _mm_madd_epi16(u[3], k__cospi_m24_p08); v[6] = _mm_madd_epi16(u[2], k__cospi_p08_p24); v[7] = _mm_madd_epi16(u[3], k__cospi_p08_p24); w[0] = _mm_add_epi32(v[0], v[4]); w[1] = _mm_add_epi32(v[1], v[5]); w[2] = _mm_add_epi32(v[2], v[6]); w[3] = _mm_add_epi32(v[3], v[7]); w[4] = _mm_sub_epi32(v[0], v[4]); w[5] = _mm_sub_epi32(v[1], v[5]); w[6] = _mm_sub_epi32(v[2], v[6]); w[7] = _mm_sub_epi32(v[3], v[7]); u[0] = dct_const_round_shift_sse2(w[0]); u[1] = dct_const_round_shift_sse2(w[1]); u[2] = dct_const_round_shift_sse2(w[2]); u[3] = dct_const_round_shift_sse2(w[3]); u[4] = dct_const_round_shift_sse2(w[4]); u[5] = dct_const_round_shift_sse2(w[5]); u[6] = dct_const_round_shift_sse2(w[6]); u[7] = dct_const_round_shift_sse2(w[7]); // back to 16-bit intergers s[4] = _mm_packs_epi32(u[0], u[1]); s[5] = _mm_packs_epi32(u[2], u[3]); s[6] = _mm_packs_epi32(u[4], u[5]); s[7] = _mm_packs_epi32(u[6], u[7]); // stage 3 u[0] = _mm_unpacklo_epi16(s[2], s[3]); u[1] = _mm_unpackhi_epi16(s[2], s[3]); u[2] = _mm_unpacklo_epi16(s[6], s[7]); u[3] = _mm_unpackhi_epi16(s[6], s[7]); s[2] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p16_p16); s[3] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p16_m16); s[6] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p16_p16); s[7] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p16_m16); in[0] = s[0]; in[1] = _mm_sub_epi16(kZero, s[4]); in[2] = s[6]; in[3] = _mm_sub_epi16(kZero, s[2]); in[4] = s[3]; in[5] = _mm_sub_epi16(kZero, s[7]); in[6] = s[5]; in[7] = _mm_sub_epi16(kZero, s[1]); } static INLINE void idct16_load8x8(const tran_low_t *const input, __m128i *const in) { in[0] = load_input_data8(input + 0 * 16); in[1] = load_input_data8(input + 1 * 16); in[2] = load_input_data8(input + 2 * 16); in[3] = load_input_data8(input + 3 * 16); in[4] = load_input_data8(input + 4 * 16); in[5] = load_input_data8(input + 5 * 16); in[6] = load_input_data8(input + 6 * 16); in[7] = load_input_data8(input + 7 * 16); } void vpx_idct16x16_256_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i l[16], r[16], out[16], *in; int i; in = l; for (i = 0; i < 2; i++) { idct16_load8x8(input, in); transpose_16bit_8x8(in, in); idct16_load8x8(input + 8, in + 8); transpose_16bit_8x8(in + 8, in + 8); idct16_8col(in, in); in = r; input += 128; } for (i = 0; i < 16; i += 8) { int j; transpose_16bit_8x8(l + i, out); transpose_16bit_8x8(r + i, out + 8); idct16_8col(out, out); for (j = 0; j < 16; ++j) { write_buffer_8x1(dest + j * stride, out[j]); } dest += 8; } } void vpx_idct16x16_38_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i in[16], temp[16], out[16]; int i; idct16_load8x8(input, in); transpose_16bit_8x8(in, in); for (i = 8; i < 16; i++) { in[i] = _mm_setzero_si128(); } idct16_8col(in, temp); for (i = 0; i < 16; i += 8) { int j; transpose_16bit_8x8(temp + i, in); idct16_8col(in, out); for (j = 0; j < 16; ++j) { write_buffer_8x1(dest + j * stride, out[j]); } dest += 8; } } void vpx_idct16x16_10_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i in[16], l[16]; int i; // First 1-D inverse DCT // Load input data. in[0] = load_input_data4(input + 0 * 16); in[1] = load_input_data4(input + 1 * 16); in[2] = load_input_data4(input + 2 * 16); in[3] = load_input_data4(input + 3 * 16); idct16x16_10_pass1(in, l); // Second 1-D inverse transform, performed per 8x16 block for (i = 0; i < 16; i += 8) { int j; idct16x16_10_pass2(l + i, in); for (j = 0; j < 16; ++j) { write_buffer_8x1(dest + j * stride, in[j]); } dest += 8; } } static INLINE void recon_and_store_16(uint8_t *const dest, const __m128i in_x) { const __m128i zero = _mm_setzero_si128(); __m128i d0, d1; d0 = _mm_load_si128((__m128i *)(dest)); d1 = _mm_unpackhi_epi8(d0, zero); d0 = _mm_unpacklo_epi8(d0, zero); d0 = _mm_add_epi16(in_x, d0); d1 = _mm_add_epi16(in_x, d1); d0 = _mm_packus_epi16(d0, d1); _mm_store_si128((__m128i *)(dest), d0); } void vpx_idct16x16_1_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i dc_value; int i; tran_high_t a1; tran_low_t out = WRAPLOW(dct_const_round_shift((int16_t)input[0] * cospi_16_64)); out = WRAPLOW(dct_const_round_shift(out * cospi_16_64)); a1 = ROUND_POWER_OF_TWO(out, 6); dc_value = _mm_set1_epi16((int16_t)a1); for (i = 0; i < 16; ++i) { recon_and_store_16(dest, dc_value); dest += stride; } } void vpx_iadst16_8col_sse2(__m128i *const in) { // perform 16x16 1-D ADST for 8 columns __m128i s[16], x[16], u[32], v[32]; const __m128i k__cospi_p01_p31 = pair_set_epi16(cospi_1_64, cospi_31_64); const __m128i k__cospi_p31_m01 = pair_set_epi16(cospi_31_64, -cospi_1_64); const __m128i k__cospi_p05_p27 = pair_set_epi16(cospi_5_64, cospi_27_64); const __m128i k__cospi_p27_m05 = pair_set_epi16(cospi_27_64, -cospi_5_64); const __m128i k__cospi_p09_p23 = pair_set_epi16(cospi_9_64, cospi_23_64); const __m128i k__cospi_p23_m09 = pair_set_epi16(cospi_23_64, -cospi_9_64); const __m128i k__cospi_p13_p19 = pair_set_epi16(cospi_13_64, cospi_19_64); const __m128i k__cospi_p19_m13 = pair_set_epi16(cospi_19_64, -cospi_13_64); const __m128i k__cospi_p17_p15 = pair_set_epi16(cospi_17_64, cospi_15_64); const __m128i k__cospi_p15_m17 = pair_set_epi16(cospi_15_64, -cospi_17_64); const __m128i k__cospi_p21_p11 = pair_set_epi16(cospi_21_64, cospi_11_64); const __m128i k__cospi_p11_m21 = pair_set_epi16(cospi_11_64, -cospi_21_64); const __m128i k__cospi_p25_p07 = pair_set_epi16(cospi_25_64, cospi_7_64); const __m128i k__cospi_p07_m25 = pair_set_epi16(cospi_7_64, -cospi_25_64); const __m128i k__cospi_p29_p03 = pair_set_epi16(cospi_29_64, cospi_3_64); const __m128i k__cospi_p03_m29 = pair_set_epi16(cospi_3_64, -cospi_29_64); const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64); const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64); const __m128i k__cospi_p20_p12 = pair_set_epi16(cospi_20_64, cospi_12_64); const __m128i k__cospi_p12_m20 = pair_set_epi16(cospi_12_64, -cospi_20_64); const __m128i k__cospi_m28_p04 = pair_set_epi16(-cospi_28_64, cospi_4_64); const __m128i k__cospi_m12_p20 = pair_set_epi16(-cospi_12_64, cospi_20_64); const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64); const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64); const __m128i k__cospi_m24_p08 = pair_set_epi16(-cospi_24_64, cospi_8_64); const __m128i k__cospi_m16_m16 = _mm_set1_epi16(-cospi_16_64); const __m128i k__cospi_p16_p16 = _mm_set1_epi16(cospi_16_64); const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64); const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64); const __m128i kZero = _mm_set1_epi16(0); u[0] = _mm_unpacklo_epi16(in[15], in[0]); u[1] = _mm_unpackhi_epi16(in[15], in[0]); u[2] = _mm_unpacklo_epi16(in[13], in[2]); u[3] = _mm_unpackhi_epi16(in[13], in[2]); u[4] = _mm_unpacklo_epi16(in[11], in[4]); u[5] = _mm_unpackhi_epi16(in[11], in[4]); u[6] = _mm_unpacklo_epi16(in[9], in[6]); u[7] = _mm_unpackhi_epi16(in[9], in[6]); u[8] = _mm_unpacklo_epi16(in[7], in[8]); u[9] = _mm_unpackhi_epi16(in[7], in[8]); u[10] = _mm_unpacklo_epi16(in[5], in[10]); u[11] = _mm_unpackhi_epi16(in[5], in[10]); u[12] = _mm_unpacklo_epi16(in[3], in[12]); u[13] = _mm_unpackhi_epi16(in[3], in[12]); u[14] = _mm_unpacklo_epi16(in[1], in[14]); u[15] = _mm_unpackhi_epi16(in[1], in[14]); v[0] = _mm_madd_epi16(u[0], k__cospi_p01_p31); v[1] = _mm_madd_epi16(u[1], k__cospi_p01_p31); v[2] = _mm_madd_epi16(u[0], k__cospi_p31_m01); v[3] = _mm_madd_epi16(u[1], k__cospi_p31_m01); v[4] = _mm_madd_epi16(u[2], k__cospi_p05_p27); v[5] = _mm_madd_epi16(u[3], k__cospi_p05_p27); v[6] = _mm_madd_epi16(u[2], k__cospi_p27_m05); v[7] = _mm_madd_epi16(u[3], k__cospi_p27_m05); v[8] = _mm_madd_epi16(u[4], k__cospi_p09_p23); v[9] = _mm_madd_epi16(u[5], k__cospi_p09_p23); v[10] = _mm_madd_epi16(u[4], k__cospi_p23_m09); v[11] = _mm_madd_epi16(u[5], k__cospi_p23_m09); v[12] = _mm_madd_epi16(u[6], k__cospi_p13_p19); v[13] = _mm_madd_epi16(u[7], k__cospi_p13_p19); v[14] = _mm_madd_epi16(u[6], k__cospi_p19_m13); v[15] = _mm_madd_epi16(u[7], k__cospi_p19_m13); v[16] = _mm_madd_epi16(u[8], k__cospi_p17_p15); v[17] = _mm_madd_epi16(u[9], k__cospi_p17_p15); v[18] = _mm_madd_epi16(u[8], k__cospi_p15_m17); v[19] = _mm_madd_epi16(u[9], k__cospi_p15_m17); v[20] = _mm_madd_epi16(u[10], k__cospi_p21_p11); v[21] = _mm_madd_epi16(u[11], k__cospi_p21_p11); v[22] = _mm_madd_epi16(u[10], k__cospi_p11_m21); v[23] = _mm_madd_epi16(u[11], k__cospi_p11_m21); v[24] = _mm_madd_epi16(u[12], k__cospi_p25_p07); v[25] = _mm_madd_epi16(u[13], k__cospi_p25_p07); v[26] = _mm_madd_epi16(u[12], k__cospi_p07_m25); v[27] = _mm_madd_epi16(u[13], k__cospi_p07_m25); v[28] = _mm_madd_epi16(u[14], k__cospi_p29_p03); v[29] = _mm_madd_epi16(u[15], k__cospi_p29_p03); v[30] = _mm_madd_epi16(u[14], k__cospi_p03_m29); v[31] = _mm_madd_epi16(u[15], k__cospi_p03_m29); u[0] = _mm_add_epi32(v[0], v[16]); u[1] = _mm_add_epi32(v[1], v[17]); u[2] = _mm_add_epi32(v[2], v[18]); u[3] = _mm_add_epi32(v[3], v[19]); u[4] = _mm_add_epi32(v[4], v[20]); u[5] = _mm_add_epi32(v[5], v[21]); u[6] = _mm_add_epi32(v[6], v[22]); u[7] = _mm_add_epi32(v[7], v[23]); u[8] = _mm_add_epi32(v[8], v[24]); u[9] = _mm_add_epi32(v[9], v[25]); u[10] = _mm_add_epi32(v[10], v[26]); u[11] = _mm_add_epi32(v[11], v[27]); u[12] = _mm_add_epi32(v[12], v[28]); u[13] = _mm_add_epi32(v[13], v[29]); u[14] = _mm_add_epi32(v[14], v[30]); u[15] = _mm_add_epi32(v[15], v[31]); u[16] = _mm_sub_epi32(v[0], v[16]); u[17] = _mm_sub_epi32(v[1], v[17]); u[18] = _mm_sub_epi32(v[2], v[18]); u[19] = _mm_sub_epi32(v[3], v[19]); u[20] = _mm_sub_epi32(v[4], v[20]); u[21] = _mm_sub_epi32(v[5], v[21]); u[22] = _mm_sub_epi32(v[6], v[22]); u[23] = _mm_sub_epi32(v[7], v[23]); u[24] = _mm_sub_epi32(v[8], v[24]); u[25] = _mm_sub_epi32(v[9], v[25]); u[26] = _mm_sub_epi32(v[10], v[26]); u[27] = _mm_sub_epi32(v[11], v[27]); u[28] = _mm_sub_epi32(v[12], v[28]); u[29] = _mm_sub_epi32(v[13], v[29]); u[30] = _mm_sub_epi32(v[14], v[30]); u[31] = _mm_sub_epi32(v[15], v[31]); u[0] = dct_const_round_shift_sse2(u[0]); u[1] = dct_const_round_shift_sse2(u[1]); u[2] = dct_const_round_shift_sse2(u[2]); u[3] = dct_const_round_shift_sse2(u[3]); u[4] = dct_const_round_shift_sse2(u[4]); u[5] = dct_const_round_shift_sse2(u[5]); u[6] = dct_const_round_shift_sse2(u[6]); u[7] = dct_const_round_shift_sse2(u[7]); u[8] = dct_const_round_shift_sse2(u[8]); u[9] = dct_const_round_shift_sse2(u[9]); u[10] = dct_const_round_shift_sse2(u[10]); u[11] = dct_const_round_shift_sse2(u[11]); u[12] = dct_const_round_shift_sse2(u[12]); u[13] = dct_const_round_shift_sse2(u[13]); u[14] = dct_const_round_shift_sse2(u[14]); u[15] = dct_const_round_shift_sse2(u[15]); u[16] = dct_const_round_shift_sse2(u[16]); u[17] = dct_const_round_shift_sse2(u[17]); u[18] = dct_const_round_shift_sse2(u[18]); u[19] = dct_const_round_shift_sse2(u[19]); u[20] = dct_const_round_shift_sse2(u[20]); u[21] = dct_const_round_shift_sse2(u[21]); u[22] = dct_const_round_shift_sse2(u[22]); u[23] = dct_const_round_shift_sse2(u[23]); u[24] = dct_const_round_shift_sse2(u[24]); u[25] = dct_const_round_shift_sse2(u[25]); u[26] = dct_const_round_shift_sse2(u[26]); u[27] = dct_const_round_shift_sse2(u[27]); u[28] = dct_const_round_shift_sse2(u[28]); u[29] = dct_const_round_shift_sse2(u[29]); u[30] = dct_const_round_shift_sse2(u[30]); u[31] = dct_const_round_shift_sse2(u[31]); s[0] = _mm_packs_epi32(u[0], u[1]); s[1] = _mm_packs_epi32(u[2], u[3]); s[2] = _mm_packs_epi32(u[4], u[5]); s[3] = _mm_packs_epi32(u[6], u[7]); s[4] = _mm_packs_epi32(u[8], u[9]); s[5] = _mm_packs_epi32(u[10], u[11]); s[6] = _mm_packs_epi32(u[12], u[13]); s[7] = _mm_packs_epi32(u[14], u[15]); s[8] = _mm_packs_epi32(u[16], u[17]); s[9] = _mm_packs_epi32(u[18], u[19]); s[10] = _mm_packs_epi32(u[20], u[21]); s[11] = _mm_packs_epi32(u[22], u[23]); s[12] = _mm_packs_epi32(u[24], u[25]); s[13] = _mm_packs_epi32(u[26], u[27]); s[14] = _mm_packs_epi32(u[28], u[29]); s[15] = _mm_packs_epi32(u[30], u[31]); // stage 2 u[0] = _mm_unpacklo_epi16(s[8], s[9]); u[1] = _mm_unpackhi_epi16(s[8], s[9]); u[2] = _mm_unpacklo_epi16(s[10], s[11]); u[3] = _mm_unpackhi_epi16(s[10], s[11]); u[4] = _mm_unpacklo_epi16(s[12], s[13]); u[5] = _mm_unpackhi_epi16(s[12], s[13]); u[6] = _mm_unpacklo_epi16(s[14], s[15]); u[7] = _mm_unpackhi_epi16(s[14], s[15]); v[0] = _mm_madd_epi16(u[0], k__cospi_p04_p28); v[1] = _mm_madd_epi16(u[1], k__cospi_p04_p28); v[2] = _mm_madd_epi16(u[0], k__cospi_p28_m04); v[3] = _mm_madd_epi16(u[1], k__cospi_p28_m04); v[4] = _mm_madd_epi16(u[2], k__cospi_p20_p12); v[5] = _mm_madd_epi16(u[3], k__cospi_p20_p12); v[6] = _mm_madd_epi16(u[2], k__cospi_p12_m20); v[7] = _mm_madd_epi16(u[3], k__cospi_p12_m20); v[8] = _mm_madd_epi16(u[4], k__cospi_m28_p04); v[9] = _mm_madd_epi16(u[5], k__cospi_m28_p04); v[10] = _mm_madd_epi16(u[4], k__cospi_p04_p28); v[11] = _mm_madd_epi16(u[5], k__cospi_p04_p28); v[12] = _mm_madd_epi16(u[6], k__cospi_m12_p20); v[13] = _mm_madd_epi16(u[7], k__cospi_m12_p20); v[14] = _mm_madd_epi16(u[6], k__cospi_p20_p12); v[15] = _mm_madd_epi16(u[7], k__cospi_p20_p12); u[0] = _mm_add_epi32(v[0], v[8]); u[1] = _mm_add_epi32(v[1], v[9]); u[2] = _mm_add_epi32(v[2], v[10]); u[3] = _mm_add_epi32(v[3], v[11]); u[4] = _mm_add_epi32(v[4], v[12]); u[5] = _mm_add_epi32(v[5], v[13]); u[6] = _mm_add_epi32(v[6], v[14]); u[7] = _mm_add_epi32(v[7], v[15]); u[8] = _mm_sub_epi32(v[0], v[8]); u[9] = _mm_sub_epi32(v[1], v[9]); u[10] = _mm_sub_epi32(v[2], v[10]); u[11] = _mm_sub_epi32(v[3], v[11]); u[12] = _mm_sub_epi32(v[4], v[12]); u[13] = _mm_sub_epi32(v[5], v[13]); u[14] = _mm_sub_epi32(v[6], v[14]); u[15] = _mm_sub_epi32(v[7], v[15]); u[0] = dct_const_round_shift_sse2(u[0]); u[1] = dct_const_round_shift_sse2(u[1]); u[2] = dct_const_round_shift_sse2(u[2]); u[3] = dct_const_round_shift_sse2(u[3]); u[4] = dct_const_round_shift_sse2(u[4]); u[5] = dct_const_round_shift_sse2(u[5]); u[6] = dct_const_round_shift_sse2(u[6]); u[7] = dct_const_round_shift_sse2(u[7]); u[8] = dct_const_round_shift_sse2(u[8]); u[9] = dct_const_round_shift_sse2(u[9]); u[10] = dct_const_round_shift_sse2(u[10]); u[11] = dct_const_round_shift_sse2(u[11]); u[12] = dct_const_round_shift_sse2(u[12]); u[13] = dct_const_round_shift_sse2(u[13]); u[14] = dct_const_round_shift_sse2(u[14]); u[15] = dct_const_round_shift_sse2(u[15]); x[0] = _mm_add_epi16(s[0], s[4]); x[1] = _mm_add_epi16(s[1], s[5]); x[2] = _mm_add_epi16(s[2], s[6]); x[3] = _mm_add_epi16(s[3], s[7]); x[4] = _mm_sub_epi16(s[0], s[4]); x[5] = _mm_sub_epi16(s[1], s[5]); x[6] = _mm_sub_epi16(s[2], s[6]); x[7] = _mm_sub_epi16(s[3], s[7]); x[8] = _mm_packs_epi32(u[0], u[1]); x[9] = _mm_packs_epi32(u[2], u[3]); x[10] = _mm_packs_epi32(u[4], u[5]); x[11] = _mm_packs_epi32(u[6], u[7]); x[12] = _mm_packs_epi32(u[8], u[9]); x[13] = _mm_packs_epi32(u[10], u[11]); x[14] = _mm_packs_epi32(u[12], u[13]); x[15] = _mm_packs_epi32(u[14], u[15]); // stage 3 u[0] = _mm_unpacklo_epi16(x[4], x[5]); u[1] = _mm_unpackhi_epi16(x[4], x[5]); u[2] = _mm_unpacklo_epi16(x[6], x[7]); u[3] = _mm_unpackhi_epi16(x[6], x[7]); u[4] = _mm_unpacklo_epi16(x[12], x[13]); u[5] = _mm_unpackhi_epi16(x[12], x[13]); u[6] = _mm_unpacklo_epi16(x[14], x[15]); u[7] = _mm_unpackhi_epi16(x[14], x[15]); v[0] = _mm_madd_epi16(u[0], k__cospi_p08_p24); v[1] = _mm_madd_epi16(u[1], k__cospi_p08_p24); v[2] = _mm_madd_epi16(u[0], k__cospi_p24_m08); v[3] = _mm_madd_epi16(u[1], k__cospi_p24_m08); v[4] = _mm_madd_epi16(u[2], k__cospi_m24_p08); v[5] = _mm_madd_epi16(u[3], k__cospi_m24_p08); v[6] = _mm_madd_epi16(u[2], k__cospi_p08_p24); v[7] = _mm_madd_epi16(u[3], k__cospi_p08_p24); v[8] = _mm_madd_epi16(u[4], k__cospi_p08_p24); v[9] = _mm_madd_epi16(u[5], k__cospi_p08_p24); v[10] = _mm_madd_epi16(u[4], k__cospi_p24_m08); v[11] = _mm_madd_epi16(u[5], k__cospi_p24_m08); v[12] = _mm_madd_epi16(u[6], k__cospi_m24_p08); v[13] = _mm_madd_epi16(u[7], k__cospi_m24_p08); v[14] = _mm_madd_epi16(u[6], k__cospi_p08_p24); v[15] = _mm_madd_epi16(u[7], k__cospi_p08_p24); u[0] = _mm_add_epi32(v[0], v[4]); u[1] = _mm_add_epi32(v[1], v[5]); u[2] = _mm_add_epi32(v[2], v[6]); u[3] = _mm_add_epi32(v[3], v[7]); u[4] = _mm_sub_epi32(v[0], v[4]); u[5] = _mm_sub_epi32(v[1], v[5]); u[6] = _mm_sub_epi32(v[2], v[6]); u[7] = _mm_sub_epi32(v[3], v[7]); u[8] = _mm_add_epi32(v[8], v[12]); u[9] = _mm_add_epi32(v[9], v[13]); u[10] = _mm_add_epi32(v[10], v[14]); u[11] = _mm_add_epi32(v[11], v[15]); u[12] = _mm_sub_epi32(v[8], v[12]); u[13] = _mm_sub_epi32(v[9], v[13]); u[14] = _mm_sub_epi32(v[10], v[14]); u[15] = _mm_sub_epi32(v[11], v[15]); v[0] = dct_const_round_shift_sse2(u[0]); v[1] = dct_const_round_shift_sse2(u[1]); v[2] = dct_const_round_shift_sse2(u[2]); v[3] = dct_const_round_shift_sse2(u[3]); v[4] = dct_const_round_shift_sse2(u[4]); v[5] = dct_const_round_shift_sse2(u[5]); v[6] = dct_const_round_shift_sse2(u[6]); v[7] = dct_const_round_shift_sse2(u[7]); v[8] = dct_const_round_shift_sse2(u[8]); v[9] = dct_const_round_shift_sse2(u[9]); v[10] = dct_const_round_shift_sse2(u[10]); v[11] = dct_const_round_shift_sse2(u[11]); v[12] = dct_const_round_shift_sse2(u[12]); v[13] = dct_const_round_shift_sse2(u[13]); v[14] = dct_const_round_shift_sse2(u[14]); v[15] = dct_const_round_shift_sse2(u[15]); s[0] = _mm_add_epi16(x[0], x[2]); s[1] = _mm_add_epi16(x[1], x[3]); s[2] = _mm_sub_epi16(x[0], x[2]); s[3] = _mm_sub_epi16(x[1], x[3]); s[4] = _mm_packs_epi32(v[0], v[1]); s[5] = _mm_packs_epi32(v[2], v[3]); s[6] = _mm_packs_epi32(v[4], v[5]); s[7] = _mm_packs_epi32(v[6], v[7]); s[8] = _mm_add_epi16(x[8], x[10]); s[9] = _mm_add_epi16(x[9], x[11]); s[10] = _mm_sub_epi16(x[8], x[10]); s[11] = _mm_sub_epi16(x[9], x[11]); s[12] = _mm_packs_epi32(v[8], v[9]); s[13] = _mm_packs_epi32(v[10], v[11]); s[14] = _mm_packs_epi32(v[12], v[13]); s[15] = _mm_packs_epi32(v[14], v[15]); // stage 4 u[0] = _mm_unpacklo_epi16(s[2], s[3]); u[1] = _mm_unpackhi_epi16(s[2], s[3]); u[2] = _mm_unpacklo_epi16(s[6], s[7]); u[3] = _mm_unpackhi_epi16(s[6], s[7]); u[4] = _mm_unpacklo_epi16(s[10], s[11]); u[5] = _mm_unpackhi_epi16(s[10], s[11]); u[6] = _mm_unpacklo_epi16(s[14], s[15]); u[7] = _mm_unpackhi_epi16(s[14], s[15]); in[7] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_m16_m16); in[8] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p16_m16); in[4] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p16_p16); in[11] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_m16_p16); in[6] = idct_calc_wraplow_sse2(u[4], u[5], k__cospi_p16_p16); in[9] = idct_calc_wraplow_sse2(u[4], u[5], k__cospi_m16_p16); in[5] = idct_calc_wraplow_sse2(u[6], u[7], k__cospi_m16_m16); in[10] = idct_calc_wraplow_sse2(u[6], u[7], k__cospi_p16_m16); in[0] = s[0]; in[1] = _mm_sub_epi16(kZero, s[8]); in[2] = s[12]; in[3] = _mm_sub_epi16(kZero, s[4]); in[12] = s[5]; in[13] = _mm_sub_epi16(kZero, s[13]); in[14] = s[9]; in[15] = _mm_sub_epi16(kZero, s[1]); } void idct16_sse2(__m128i *const in0, __m128i *const in1) { transpose_16bit_16x16(in0, in1); idct16_8col(in0, in0); idct16_8col(in1, in1); } void iadst16_sse2(__m128i *const in0, __m128i *const in1) { transpose_16bit_16x16(in0, in1); vpx_iadst16_8col_sse2(in0); vpx_iadst16_8col_sse2(in1); } // Group the coefficient calculation into smaller functions to prevent stack // spillover in 32x32 idct optimizations: // quarter_1: 0-7 // quarter_2: 8-15 // quarter_3_4: 16-23, 24-31 // For each 8x32 block __m128i in[32], // Input with index, 0, 4 // output pixels: 0-7 in __m128i out[32] static INLINE void idct32_34_8x32_quarter_1(const __m128i *const in /*in[32]*/, __m128i *const out /*out[8]*/) { const __m128i zero = _mm_setzero_si128(); __m128i step1[8], step2[8]; // stage 3 butterfly(in[4], zero, cospi_28_64, cospi_4_64, &step1[4], &step1[7]); // stage 4 step2[0] = butterfly_cospi16(in[0]); step2[4] = step1[4]; step2[5] = step1[4]; step2[6] = step1[7]; step2[7] = step1[7]; // stage 5 step1[0] = step2[0]; step1[1] = step2[0]; step1[2] = step2[0]; step1[3] = step2[0]; step1[4] = step2[4]; butterfly(step2[6], step2[5], cospi_16_64, cospi_16_64, &step1[5], &step1[6]); step1[7] = step2[7]; // stage 6 out[0] = _mm_add_epi16(step1[0], step1[7]); out[1] = _mm_add_epi16(step1[1], step1[6]); out[2] = _mm_add_epi16(step1[2], step1[5]); out[3] = _mm_add_epi16(step1[3], step1[4]); out[4] = _mm_sub_epi16(step1[3], step1[4]); out[5] = _mm_sub_epi16(step1[2], step1[5]); out[6] = _mm_sub_epi16(step1[1], step1[6]); out[7] = _mm_sub_epi16(step1[0], step1[7]); } // For each 8x32 block __m128i in[32], // Input with index, 2, 6 // output pixels: 8-15 in __m128i out[32] static INLINE void idct32_34_8x32_quarter_2(const __m128i *const in /*in[32]*/, __m128i *const out /*out[16]*/) { const __m128i zero = _mm_setzero_si128(); __m128i step1[16], step2[16]; // stage 2 butterfly(in[2], zero, cospi_30_64, cospi_2_64, &step2[8], &step2[15]); butterfly(zero, in[6], cospi_6_64, cospi_26_64, &step2[11], &step2[12]); // stage 3 step1[8] = step2[8]; step1[9] = step2[8]; step1[14] = step2[15]; step1[15] = step2[15]; step1[10] = step2[11]; step1[11] = step2[11]; step1[12] = step2[12]; step1[13] = step2[12]; idct32_8x32_quarter_2_stage_4_to_6(step1, out); } static INLINE void idct32_34_8x32_quarter_1_2( const __m128i *const in /*in[32]*/, __m128i *const out /*out[32]*/) { __m128i temp[16]; idct32_34_8x32_quarter_1(in, temp); idct32_34_8x32_quarter_2(in, temp); // stage 7 add_sub_butterfly(temp, out, 16); } // For each 8x32 block __m128i in[32], // Input with odd index, 1, 3, 5, 7 // output pixels: 16-23, 24-31 in __m128i out[32] static INLINE void idct32_34_8x32_quarter_3_4( const __m128i *const in /*in[32]*/, __m128i *const out /*out[32]*/) { const __m128i zero = _mm_setzero_si128(); __m128i step1[32]; // stage 1 butterfly(in[1], zero, cospi_31_64, cospi_1_64, &step1[16], &step1[31]); butterfly(zero, in[7], cospi_7_64, cospi_25_64, &step1[19], &step1[28]); butterfly(in[5], zero, cospi_27_64, cospi_5_64, &step1[20], &step1[27]); butterfly(zero, in[3], cospi_3_64, cospi_29_64, &step1[23], &step1[24]); // stage 3 butterfly(step1[31], step1[16], cospi_28_64, cospi_4_64, &step1[17], &step1[30]); butterfly(step1[28], step1[19], -cospi_4_64, cospi_28_64, &step1[18], &step1[29]); butterfly(step1[27], step1[20], cospi_12_64, cospi_20_64, &step1[21], &step1[26]); butterfly(step1[24], step1[23], -cospi_20_64, cospi_12_64, &step1[22], &step1[25]); idct32_8x32_quarter_3_4_stage_4_to_7(step1, out); } void idct32_34_8x32_sse2(const __m128i *const in /*in[32]*/, __m128i *const out /*out[32]*/) { __m128i temp[32]; idct32_34_8x32_quarter_1_2(in, temp); idct32_34_8x32_quarter_3_4(in, temp); // final stage add_sub_butterfly(temp, out, 32); } // Only upper-left 8x8 has non-zero coeff void vpx_idct32x32_34_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i io[32], col[32]; int i; // Load input data. Only need to load the top left 8x8 block. load_transpose_16bit_8x8(input, 32, io); idct32_34_8x32_sse2(io, col); for (i = 0; i < 32; i += 8) { int j; transpose_16bit_8x8(col + i, io); idct32_34_8x32_sse2(io, io); for (j = 0; j < 32; ++j) { write_buffer_8x1(dest + j * stride, io[j]); } dest += 8; } } // For each 8x32 block __m128i in[32], // Input with index, 0, 4, 8, 12, 16, 20, 24, 28 // output pixels: 0-7 in __m128i out[32] static INLINE void idct32_1024_8x32_quarter_1( const __m128i *const in /*in[32]*/, __m128i *const out /*out[8]*/) { __m128i step1[8], step2[8]; // stage 3 butterfly(in[4], in[28], cospi_28_64, cospi_4_64, &step1[4], &step1[7]); butterfly(in[20], in[12], cospi_12_64, cospi_20_64, &step1[5], &step1[6]); // stage 4 butterfly(in[0], in[16], cospi_16_64, cospi_16_64, &step2[1], &step2[0]); butterfly(in[8], in[24], cospi_24_64, cospi_8_64, &step2[2], &step2[3]); step2[4] = _mm_add_epi16(step1[4], step1[5]); step2[5] = _mm_sub_epi16(step1[4], step1[5]); step2[6] = _mm_sub_epi16(step1[7], step1[6]); step2[7] = _mm_add_epi16(step1[7], step1[6]); // stage 5 step1[0] = _mm_add_epi16(step2[0], step2[3]); step1[1] = _mm_add_epi16(step2[1], step2[2]); step1[2] = _mm_sub_epi16(step2[1], step2[2]); step1[3] = _mm_sub_epi16(step2[0], step2[3]); step1[4] = step2[4]; butterfly(step2[6], step2[5], cospi_16_64, cospi_16_64, &step1[5], &step1[6]); step1[7] = step2[7]; // stage 6 out[0] = _mm_add_epi16(step1[0], step1[7]); out[1] = _mm_add_epi16(step1[1], step1[6]); out[2] = _mm_add_epi16(step1[2], step1[5]); out[3] = _mm_add_epi16(step1[3], step1[4]); out[4] = _mm_sub_epi16(step1[3], step1[4]); out[5] = _mm_sub_epi16(step1[2], step1[5]); out[6] = _mm_sub_epi16(step1[1], step1[6]); out[7] = _mm_sub_epi16(step1[0], step1[7]); } // For each 8x32 block __m128i in[32], // Input with index, 2, 6, 10, 14, 18, 22, 26, 30 // output pixels: 8-15 in __m128i out[32] static INLINE void idct32_1024_8x32_quarter_2( const __m128i *const in /*in[32]*/, __m128i *const out /*out[16]*/) { __m128i step1[16], step2[16]; // stage 2 butterfly(in[2], in[30], cospi_30_64, cospi_2_64, &step2[8], &step2[15]); butterfly(in[18], in[14], cospi_14_64, cospi_18_64, &step2[9], &step2[14]); butterfly(in[10], in[22], cospi_22_64, cospi_10_64, &step2[10], &step2[13]); butterfly(in[26], in[6], cospi_6_64, cospi_26_64, &step2[11], &step2[12]); // stage 3 step1[8] = _mm_add_epi16(step2[8], step2[9]); step1[9] = _mm_sub_epi16(step2[8], step2[9]); step1[10] = _mm_sub_epi16(step2[11], step2[10]); step1[11] = _mm_add_epi16(step2[11], step2[10]); step1[12] = _mm_add_epi16(step2[12], step2[13]); step1[13] = _mm_sub_epi16(step2[12], step2[13]); step1[14] = _mm_sub_epi16(step2[15], step2[14]); step1[15] = _mm_add_epi16(step2[15], step2[14]); idct32_8x32_quarter_2_stage_4_to_6(step1, out); } static INLINE void idct32_1024_8x32_quarter_1_2( const __m128i *const in /*in[32]*/, __m128i *const out /*out[32]*/) { __m128i temp[16]; idct32_1024_8x32_quarter_1(in, temp); idct32_1024_8x32_quarter_2(in, temp); // stage 7 add_sub_butterfly(temp, out, 16); } // For each 8x32 block __m128i in[32], // Input with odd index, // 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31 // output pixels: 16-23, 24-31 in __m128i out[32] static INLINE void idct32_1024_8x32_quarter_3_4( const __m128i *const in /*in[32]*/, __m128i *const out /*out[32]*/) { __m128i step1[32], step2[32]; // stage 1 butterfly(in[1], in[31], cospi_31_64, cospi_1_64, &step1[16], &step1[31]); butterfly(in[17], in[15], cospi_15_64, cospi_17_64, &step1[17], &step1[30]); butterfly(in[9], in[23], cospi_23_64, cospi_9_64, &step1[18], &step1[29]); butterfly(in[25], in[7], cospi_7_64, cospi_25_64, &step1[19], &step1[28]); butterfly(in[5], in[27], cospi_27_64, cospi_5_64, &step1[20], &step1[27]); butterfly(in[21], in[11], cospi_11_64, cospi_21_64, &step1[21], &step1[26]); butterfly(in[13], in[19], cospi_19_64, cospi_13_64, &step1[22], &step1[25]); butterfly(in[29], in[3], cospi_3_64, cospi_29_64, &step1[23], &step1[24]); // stage 2 step2[16] = _mm_add_epi16(step1[16], step1[17]); step2[17] = _mm_sub_epi16(step1[16], step1[17]); step2[18] = _mm_sub_epi16(step1[19], step1[18]); step2[19] = _mm_add_epi16(step1[19], step1[18]); step2[20] = _mm_add_epi16(step1[20], step1[21]); step2[21] = _mm_sub_epi16(step1[20], step1[21]); step2[22] = _mm_sub_epi16(step1[23], step1[22]); step2[23] = _mm_add_epi16(step1[23], step1[22]); step2[24] = _mm_add_epi16(step1[24], step1[25]); step2[25] = _mm_sub_epi16(step1[24], step1[25]); step2[26] = _mm_sub_epi16(step1[27], step1[26]); step2[27] = _mm_add_epi16(step1[27], step1[26]); step2[28] = _mm_add_epi16(step1[28], step1[29]); step2[29] = _mm_sub_epi16(step1[28], step1[29]); step2[30] = _mm_sub_epi16(step1[31], step1[30]); step2[31] = _mm_add_epi16(step1[31], step1[30]); // stage 3 step1[16] = step2[16]; step1[31] = step2[31]; butterfly(step2[30], step2[17], cospi_28_64, cospi_4_64, &step1[17], &step1[30]); butterfly(step2[29], step2[18], -cospi_4_64, cospi_28_64, &step1[18], &step1[29]); step1[19] = step2[19]; step1[20] = step2[20]; butterfly(step2[26], step2[21], cospi_12_64, cospi_20_64, &step1[21], &step1[26]); butterfly(step2[25], step2[22], -cospi_20_64, cospi_12_64, &step1[22], &step1[25]); step1[23] = step2[23]; step1[24] = step2[24]; step1[27] = step2[27]; step1[28] = step2[28]; idct32_8x32_quarter_3_4_stage_4_to_7(step1, out); } void idct32_1024_8x32(const __m128i *const in /*in[32]*/, __m128i *const out /*out[32]*/) { __m128i temp[32]; idct32_1024_8x32_quarter_1_2(in, temp); idct32_1024_8x32_quarter_3_4(in, temp); // final stage add_sub_butterfly(temp, out, 32); } void vpx_idct32x32_1024_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i col[4][32], io[32]; int i; // rows for (i = 0; i < 4; i++) { load_transpose_16bit_8x8(&input[0], 32, &io[0]); load_transpose_16bit_8x8(&input[8], 32, &io[8]); load_transpose_16bit_8x8(&input[16], 32, &io[16]); load_transpose_16bit_8x8(&input[24], 32, &io[24]); idct32_1024_8x32(io, col[i]); input += 32 << 3; } // columns for (i = 0; i < 32; i += 8) { // Transpose 32x8 block to 8x32 block transpose_16bit_8x8(col[0] + i, io); transpose_16bit_8x8(col[1] + i, io + 8); transpose_16bit_8x8(col[2] + i, io + 16); transpose_16bit_8x8(col[3] + i, io + 24); idct32_1024_8x32(io, io); store_buffer_8x32(io, dest, stride); dest += 8; } } void vpx_idct32x32_135_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i col[2][32], in[32], out[32]; int i; for (i = 16; i < 32; i++) { in[i] = _mm_setzero_si128(); } // rows for (i = 0; i < 2; i++) { load_transpose_16bit_8x8(&input[0], 32, &in[0]); load_transpose_16bit_8x8(&input[8], 32, &in[8]); idct32_1024_8x32(in, col[i]); input += 32 << 3; } // columns for (i = 0; i < 32; i += 8) { transpose_16bit_8x8(col[0] + i, in); transpose_16bit_8x8(col[1] + i, in + 8); idct32_1024_8x32(in, out); store_buffer_8x32(out, dest, stride); dest += 8; } } void vpx_idct32x32_1_add_sse2(const tran_low_t *input, uint8_t *dest, int stride) { __m128i dc_value; int j; tran_high_t a1; tran_low_t out = WRAPLOW(dct_const_round_shift((int16_t)input[0] * cospi_16_64)); out = WRAPLOW(dct_const_round_shift(out * cospi_16_64)); a1 = ROUND_POWER_OF_TWO(out, 6); dc_value = _mm_set1_epi16((int16_t)a1); for (j = 0; j < 32; ++j) { recon_and_store_16(dest + j * stride + 0, dc_value); recon_and_store_16(dest + j * stride + 16, dc_value); } }