| /* |
| * 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. |
| */ |
| |
| #ifndef VPX_VPX_DSP_X86_INV_TXFM_SSE2_H_ |
| #define VPX_VPX_DSP_X86_INV_TXFM_SSE2_H_ |
| |
| #include <emmintrin.h> // SSE2 |
| |
| #include "./vpx_config.h" |
| #include "vpx/vpx_integer.h" |
| #include "vpx_dsp/inv_txfm.h" |
| #include "vpx_dsp/x86/transpose_sse2.h" |
| #include "vpx_dsp/x86/txfm_common_sse2.h" |
| |
| static INLINE void idct8x8_12_transpose_16bit_4x8(const __m128i *const in, |
| __m128i *const out) { |
| // Unpack 16 bit elements. Goes from: |
| // in[0]: 30 31 32 33 00 01 02 03 |
| // in[1]: 20 21 22 23 10 11 12 13 |
| // in[2]: 40 41 42 43 70 71 72 73 |
| // in[3]: 50 51 52 53 60 61 62 63 |
| // to: |
| // tr0_0: 00 10 01 11 02 12 03 13 |
| // tr0_1: 20 30 21 31 22 32 23 33 |
| // tr0_2: 40 50 41 51 42 52 43 53 |
| // tr0_3: 60 70 61 71 62 72 63 73 |
| const __m128i tr0_0 = _mm_unpackhi_epi16(in[0], in[1]); |
| const __m128i tr0_1 = _mm_unpacklo_epi16(in[1], in[0]); |
| const __m128i tr0_2 = _mm_unpacklo_epi16(in[2], in[3]); |
| const __m128i tr0_3 = _mm_unpackhi_epi16(in[3], in[2]); |
| |
| // Unpack 32 bit elements resulting in: |
| // tr1_0: 00 10 20 30 01 11 21 31 |
| // tr1_1: 02 12 22 32 03 13 23 33 |
| // tr1_2: 40 50 60 70 41 51 61 71 |
| // tr1_3: 42 52 62 72 43 53 63 73 |
| const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1); |
| const __m128i tr1_1 = _mm_unpacklo_epi32(tr0_2, tr0_3); |
| const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1); |
| const __m128i tr1_3 = _mm_unpackhi_epi32(tr0_2, tr0_3); |
| |
| // Unpack 64 bit elements resulting in: |
| // out[0]: 00 10 20 30 40 50 60 70 |
| // out[1]: 01 11 21 31 41 51 61 71 |
| // out[2]: 02 12 22 32 42 52 62 72 |
| // out[3]: 03 13 23 33 43 53 63 73 |
| out[0] = _mm_unpacklo_epi64(tr1_0, tr1_1); |
| out[1] = _mm_unpackhi_epi64(tr1_0, tr1_1); |
| out[2] = _mm_unpacklo_epi64(tr1_2, tr1_3); |
| out[3] = _mm_unpackhi_epi64(tr1_2, tr1_3); |
| } |
| |
| static INLINE __m128i dct_const_round_shift_sse2(const __m128i in) { |
| const __m128i t = _mm_add_epi32(in, _mm_set1_epi32(DCT_CONST_ROUNDING)); |
| return _mm_srai_epi32(t, DCT_CONST_BITS); |
| } |
| |
| static INLINE __m128i idct_madd_round_shift_sse2(const __m128i in, |
| const __m128i cospi) { |
| const __m128i t = _mm_madd_epi16(in, cospi); |
| return dct_const_round_shift_sse2(t); |
| } |
| |
| // Calculate the dot product between in0/1 and x and wrap to short. |
| static INLINE __m128i idct_calc_wraplow_sse2(const __m128i in0, |
| const __m128i in1, |
| const __m128i x) { |
| const __m128i t0 = idct_madd_round_shift_sse2(in0, x); |
| const __m128i t1 = idct_madd_round_shift_sse2(in1, x); |
| return _mm_packs_epi32(t0, t1); |
| } |
| |
| // Multiply elements by constants and add them together. |
| static INLINE void butterfly(const __m128i in0, const __m128i in1, const int c0, |
| const int c1, __m128i *const out0, |
| __m128i *const out1) { |
| const __m128i cst0 = pair_set_epi16(c0, -c1); |
| const __m128i cst1 = pair_set_epi16(c1, c0); |
| const __m128i lo = _mm_unpacklo_epi16(in0, in1); |
| const __m128i hi = _mm_unpackhi_epi16(in0, in1); |
| *out0 = idct_calc_wraplow_sse2(lo, hi, cst0); |
| *out1 = idct_calc_wraplow_sse2(lo, hi, cst1); |
| } |
| |
| static INLINE __m128i butterfly_cospi16(const __m128i in) { |
| const __m128i cst = pair_set_epi16(cospi_16_64, cospi_16_64); |
| const __m128i lo = _mm_unpacklo_epi16(in, _mm_setzero_si128()); |
| const __m128i hi = _mm_unpackhi_epi16(in, _mm_setzero_si128()); |
| return idct_calc_wraplow_sse2(lo, hi, cst); |
| } |
| |
| // Functions to allow 8 bit optimisations to be used when profile 0 is used with |
| // highbitdepth enabled |
| static INLINE __m128i load_input_data4(const tran_low_t *data) { |
| #if CONFIG_VP9_HIGHBITDEPTH |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i in = _mm_load_si128((const __m128i *)data); |
| return _mm_packs_epi32(in, zero); |
| #else |
| return _mm_loadl_epi64((const __m128i *)data); |
| #endif |
| } |
| |
| static INLINE __m128i load_input_data8(const tran_low_t *data) { |
| #if CONFIG_VP9_HIGHBITDEPTH |
| const __m128i in0 = _mm_load_si128((const __m128i *)data); |
| const __m128i in1 = _mm_load_si128((const __m128i *)(data + 4)); |
| return _mm_packs_epi32(in0, in1); |
| #else |
| return _mm_load_si128((const __m128i *)data); |
| #endif |
| } |
| |
| static INLINE void load_transpose_16bit_8x8(const tran_low_t *input, |
| const int stride, |
| __m128i *const in) { |
| in[0] = load_input_data8(input + 0 * stride); |
| in[1] = load_input_data8(input + 1 * stride); |
| in[2] = load_input_data8(input + 2 * stride); |
| in[3] = load_input_data8(input + 3 * stride); |
| in[4] = load_input_data8(input + 4 * stride); |
| in[5] = load_input_data8(input + 5 * stride); |
| in[6] = load_input_data8(input + 6 * stride); |
| in[7] = load_input_data8(input + 7 * stride); |
| transpose_16bit_8x8(in, in); |
| } |
| |
| static INLINE void recon_and_store(uint8_t *const dest, const __m128i in_x) { |
| const __m128i zero = _mm_setzero_si128(); |
| __m128i d0 = _mm_loadl_epi64((__m128i *)(dest)); |
| d0 = _mm_unpacklo_epi8(d0, zero); |
| d0 = _mm_add_epi16(in_x, d0); |
| d0 = _mm_packus_epi16(d0, d0); |
| _mm_storel_epi64((__m128i *)(dest), d0); |
| } |
| |
| static INLINE void round_shift_8x8(const __m128i *const in, |
| __m128i *const out) { |
| const __m128i final_rounding = _mm_set1_epi16(1 << 4); |
| |
| out[0] = _mm_add_epi16(in[0], final_rounding); |
| out[1] = _mm_add_epi16(in[1], final_rounding); |
| out[2] = _mm_add_epi16(in[2], final_rounding); |
| out[3] = _mm_add_epi16(in[3], final_rounding); |
| out[4] = _mm_add_epi16(in[4], final_rounding); |
| out[5] = _mm_add_epi16(in[5], final_rounding); |
| out[6] = _mm_add_epi16(in[6], final_rounding); |
| out[7] = _mm_add_epi16(in[7], final_rounding); |
| |
| out[0] = _mm_srai_epi16(out[0], 5); |
| out[1] = _mm_srai_epi16(out[1], 5); |
| out[2] = _mm_srai_epi16(out[2], 5); |
| out[3] = _mm_srai_epi16(out[3], 5); |
| out[4] = _mm_srai_epi16(out[4], 5); |
| out[5] = _mm_srai_epi16(out[5], 5); |
| out[6] = _mm_srai_epi16(out[6], 5); |
| out[7] = _mm_srai_epi16(out[7], 5); |
| } |
| |
| static INLINE void write_buffer_8x8(const __m128i *const in, |
| uint8_t *const dest, const int stride) { |
| __m128i t[8]; |
| |
| round_shift_8x8(in, t); |
| |
| recon_and_store(dest + 0 * stride, t[0]); |
| recon_and_store(dest + 1 * stride, t[1]); |
| recon_and_store(dest + 2 * stride, t[2]); |
| recon_and_store(dest + 3 * stride, t[3]); |
| recon_and_store(dest + 4 * stride, t[4]); |
| recon_and_store(dest + 5 * stride, t[5]); |
| recon_and_store(dest + 6 * stride, t[6]); |
| recon_and_store(dest + 7 * stride, t[7]); |
| } |
| |
| static INLINE void recon_and_store4x4_sse2(const __m128i *const in, |
| uint8_t *const dest, |
| const int stride) { |
| const __m128i zero = _mm_setzero_si128(); |
| __m128i d[2]; |
| |
| // 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], in[0]); |
| d[1] = _mm_add_epi16(d[1], in[1]); |
| 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]); |
| } |
| |
| static INLINE void store_buffer_8x32(__m128i *in, uint8_t *dst, int stride) { |
| const __m128i final_rounding = _mm_set1_epi16(1 << 5); |
| int j = 0; |
| while (j < 32) { |
| in[j] = _mm_adds_epi16(in[j], final_rounding); |
| in[j + 1] = _mm_adds_epi16(in[j + 1], final_rounding); |
| |
| in[j] = _mm_srai_epi16(in[j], 6); |
| in[j + 1] = _mm_srai_epi16(in[j + 1], 6); |
| |
| recon_and_store(dst, in[j]); |
| dst += stride; |
| recon_and_store(dst, in[j + 1]); |
| dst += stride; |
| j += 2; |
| } |
| } |
| |
| static INLINE void write_buffer_8x1(uint8_t *const dest, const __m128i in) { |
| const __m128i final_rounding = _mm_set1_epi16(1 << 5); |
| __m128i out; |
| out = _mm_adds_epi16(in, final_rounding); |
| out = _mm_srai_epi16(out, 6); |
| recon_and_store(dest, out); |
| } |
| |
| // Only do addition and subtraction butterfly, size = 16, 32 |
| static INLINE void add_sub_butterfly(const __m128i *in, __m128i *out, |
| int size) { |
| int i = 0; |
| const int num = size >> 1; |
| const int bound = size - 1; |
| while (i < num) { |
| out[i] = _mm_add_epi16(in[i], in[bound - i]); |
| out[bound - i] = _mm_sub_epi16(in[i], in[bound - i]); |
| i++; |
| } |
| } |
| |
| static INLINE void idct8(const __m128i *const in /*in[8]*/, |
| __m128i *const out /*out[8]*/) { |
| __m128i step1[8], step2[8]; |
| |
| // stage 1 |
| butterfly(in[1], in[7], cospi_28_64, cospi_4_64, &step1[4], &step1[7]); |
| butterfly(in[5], in[3], cospi_12_64, cospi_20_64, &step1[5], &step1[6]); |
| |
| // stage 2 |
| butterfly(in[0], in[4], cospi_16_64, cospi_16_64, &step2[1], &step2[0]); |
| butterfly(in[2], in[6], 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 3 |
| 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]); |
| butterfly(step2[6], step2[5], cospi_16_64, cospi_16_64, &step1[5], &step1[6]); |
| |
| // stage 4 |
| out[0] = _mm_add_epi16(step1[0], step2[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], step2[4]); |
| out[4] = _mm_sub_epi16(step1[3], step2[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], step2[7]); |
| } |
| |
| static INLINE void idct8x8_12_add_kernel_sse2(__m128i *const io /*io[8]*/) { |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i cp_16_16 = pair_set_epi16(cospi_16_64, cospi_16_64); |
| const __m128i cp_16_n16 = pair_set_epi16(cospi_16_64, -cospi_16_64); |
| __m128i step1[8], step2[8], tmp[4]; |
| |
| transpose_16bit_4x4(io, io); |
| // io[0]: 00 10 20 30 01 11 21 31 |
| // io[1]: 02 12 22 32 03 13 23 33 |
| |
| // stage 1 |
| { |
| const __m128i cp_28_n4 = pair_set_epi16(cospi_28_64, -cospi_4_64); |
| const __m128i cp_4_28 = pair_set_epi16(cospi_4_64, cospi_28_64); |
| const __m128i cp_n20_12 = pair_set_epi16(-cospi_20_64, cospi_12_64); |
| const __m128i cp_12_20 = pair_set_epi16(cospi_12_64, cospi_20_64); |
| const __m128i lo_1 = _mm_unpackhi_epi16(io[0], zero); |
| const __m128i lo_3 = _mm_unpackhi_epi16(io[1], zero); |
| step1[4] = idct_calc_wraplow_sse2(cp_28_n4, cp_4_28, lo_1); // step1 4&7 |
| step1[5] = idct_calc_wraplow_sse2(cp_n20_12, cp_12_20, lo_3); // step1 5&6 |
| } |
| |
| // stage 2 |
| { |
| const __m128i cp_24_n8 = pair_set_epi16(cospi_24_64, -cospi_8_64); |
| const __m128i cp_8_24 = pair_set_epi16(cospi_8_64, cospi_24_64); |
| const __m128i lo_0 = _mm_unpacklo_epi16(io[0], zero); |
| const __m128i lo_2 = _mm_unpacklo_epi16(io[1], zero); |
| const __m128i t = idct_madd_round_shift_sse2(cp_16_16, lo_0); |
| step2[0] = _mm_packs_epi32(t, t); // step2 0&1 |
| step2[2] = idct_calc_wraplow_sse2(cp_8_24, cp_24_n8, lo_2); // step2 3&2 |
| step2[4] = _mm_add_epi16(step1[4], step1[5]); // step2 4&7 |
| step2[5] = _mm_sub_epi16(step1[4], step1[5]); // step2 5&6 |
| step2[6] = _mm_unpackhi_epi64(step2[5], zero); // step2 6 |
| } |
| |
| // stage 3 |
| { |
| const __m128i lo_65 = _mm_unpacklo_epi16(step2[6], step2[5]); |
| tmp[0] = _mm_add_epi16(step2[0], step2[2]); // step1 0&1 |
| tmp[1] = _mm_sub_epi16(step2[0], step2[2]); // step1 3&2 |
| step1[2] = _mm_unpackhi_epi64(tmp[1], tmp[0]); // step1 2&1 |
| step1[3] = _mm_unpacklo_epi64(tmp[1], tmp[0]); // step1 3&0 |
| step1[5] = idct_calc_wraplow_sse2(cp_16_n16, cp_16_16, lo_65); // step1 5&6 |
| } |
| |
| // stage 4 |
| tmp[0] = _mm_add_epi16(step1[3], step2[4]); // output 3&0 |
| tmp[1] = _mm_add_epi16(step1[2], step1[5]); // output 2&1 |
| tmp[2] = _mm_sub_epi16(step1[3], step2[4]); // output 4&7 |
| tmp[3] = _mm_sub_epi16(step1[2], step1[5]); // output 5&6 |
| |
| idct8x8_12_transpose_16bit_4x8(tmp, io); |
| io[4] = io[5] = io[6] = io[7] = zero; |
| |
| idct8(io, io); |
| } |
| |
| static INLINE void idct16_8col(const __m128i *const in /*in[16]*/, |
| __m128i *const out /*out[16]*/) { |
| __m128i step1[16], step2[16]; |
| |
| // stage 2 |
| butterfly(in[1], in[15], cospi_30_64, cospi_2_64, &step2[8], &step2[15]); |
| butterfly(in[9], in[7], cospi_14_64, cospi_18_64, &step2[9], &step2[14]); |
| butterfly(in[5], in[11], cospi_22_64, cospi_10_64, &step2[10], &step2[13]); |
| butterfly(in[13], in[3], cospi_6_64, cospi_26_64, &step2[11], &step2[12]); |
| |
| // stage 3 |
| butterfly(in[2], in[14], cospi_28_64, cospi_4_64, &step1[4], &step1[7]); |
| butterfly(in[10], in[6], cospi_12_64, cospi_20_64, &step1[5], &step1[6]); |
| 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[10], step2[11]); |
| 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[14], step2[15]); |
| |
| // stage 4 |
| butterfly(in[0], in[8], cospi_16_64, cospi_16_64, &step2[1], &step2[0]); |
| butterfly(in[4], in[12], cospi_24_64, cospi_8_64, &step2[2], &step2[3]); |
| butterfly(step1[14], step1[9], cospi_24_64, cospi_8_64, &step2[9], |
| &step2[14]); |
| butterfly(step1[10], step1[13], -cospi_8_64, -cospi_24_64, &step2[13], |
| &step2[10]); |
| step2[5] = _mm_sub_epi16(step1[4], step1[5]); |
| step1[4] = _mm_add_epi16(step1[4], step1[5]); |
| step2[6] = _mm_sub_epi16(step1[7], step1[6]); |
| step1[7] = _mm_add_epi16(step1[6], step1[7]); |
| step2[8] = step1[8]; |
| step2[11] = step1[11]; |
| step2[12] = step1[12]; |
| step2[15] = step1[15]; |
| |
| // 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]); |
| butterfly(step2[6], step2[5], cospi_16_64, cospi_16_64, &step1[5], &step1[6]); |
| step1[8] = _mm_add_epi16(step2[8], step2[11]); |
| step1[9] = _mm_add_epi16(step2[9], step2[10]); |
| step1[10] = _mm_sub_epi16(step2[9], step2[10]); |
| step1[11] = _mm_sub_epi16(step2[8], step2[11]); |
| step1[12] = _mm_sub_epi16(step2[15], step2[12]); |
| step1[13] = _mm_sub_epi16(step2[14], step2[13]); |
| step1[14] = _mm_add_epi16(step2[14], step2[13]); |
| step1[15] = _mm_add_epi16(step2[15], step2[12]); |
| |
| // stage 6 |
| step2[0] = _mm_add_epi16(step1[0], step1[7]); |
| step2[1] = _mm_add_epi16(step1[1], step1[6]); |
| step2[2] = _mm_add_epi16(step1[2], step1[5]); |
| step2[3] = _mm_add_epi16(step1[3], step1[4]); |
| step2[4] = _mm_sub_epi16(step1[3], step1[4]); |
| step2[5] = _mm_sub_epi16(step1[2], step1[5]); |
| step2[6] = _mm_sub_epi16(step1[1], step1[6]); |
| step2[7] = _mm_sub_epi16(step1[0], step1[7]); |
| butterfly(step1[13], step1[10], cospi_16_64, cospi_16_64, &step2[10], |
| &step2[13]); |
| butterfly(step1[12], step1[11], cospi_16_64, cospi_16_64, &step2[11], |
| &step2[12]); |
| |
| // stage 7 |
| out[0] = _mm_add_epi16(step2[0], step1[15]); |
| out[1] = _mm_add_epi16(step2[1], step1[14]); |
| out[2] = _mm_add_epi16(step2[2], step2[13]); |
| out[3] = _mm_add_epi16(step2[3], step2[12]); |
| out[4] = _mm_add_epi16(step2[4], step2[11]); |
| out[5] = _mm_add_epi16(step2[5], step2[10]); |
| out[6] = _mm_add_epi16(step2[6], step1[9]); |
| out[7] = _mm_add_epi16(step2[7], step1[8]); |
| out[8] = _mm_sub_epi16(step2[7], step1[8]); |
| out[9] = _mm_sub_epi16(step2[6], step1[9]); |
| out[10] = _mm_sub_epi16(step2[5], step2[10]); |
| out[11] = _mm_sub_epi16(step2[4], step2[11]); |
| out[12] = _mm_sub_epi16(step2[3], step2[12]); |
| out[13] = _mm_sub_epi16(step2[2], step2[13]); |
| out[14] = _mm_sub_epi16(step2[1], step1[14]); |
| out[15] = _mm_sub_epi16(step2[0], step1[15]); |
| } |
| |
| static INLINE void idct16x16_10_pass1(const __m128i *const input /*input[4]*/, |
| __m128i *const output /*output[16]*/) { |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i k__cospi_p16_p16 = pair_set_epi16(cospi_16_64, cospi_16_64); |
| const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64); |
| __m128i step1[16], step2[16]; |
| |
| transpose_16bit_4x4(input, output); |
| |
| // stage 2 |
| { |
| const __m128i k__cospi_p30_m02 = pair_set_epi16(cospi_30_64, -cospi_2_64); |
| const __m128i k__cospi_p02_p30 = pair_set_epi16(cospi_2_64, cospi_30_64); |
| const __m128i k__cospi_p06_m26 = pair_set_epi16(cospi_6_64, -cospi_26_64); |
| const __m128i k__cospi_p26_p06 = pair_set_epi16(cospi_26_64, cospi_6_64); |
| const __m128i lo_1_15 = _mm_unpackhi_epi16(output[0], zero); |
| const __m128i lo_13_3 = _mm_unpackhi_epi16(zero, output[1]); |
| step2[8] = idct_calc_wraplow_sse2(k__cospi_p30_m02, k__cospi_p02_p30, |
| lo_1_15); // step2 8&15 |
| step2[11] = idct_calc_wraplow_sse2(k__cospi_p06_m26, k__cospi_p26_p06, |
| lo_13_3); // step2 11&12 |
| } |
| |
| // stage 3 |
| { |
| const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64); |
| const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64); |
| const __m128i lo_2_14 = _mm_unpacklo_epi16(output[1], zero); |
| step1[4] = idct_calc_wraplow_sse2(k__cospi_p28_m04, k__cospi_p04_p28, |
| lo_2_14); // step1 4&7 |
| step1[13] = _mm_unpackhi_epi64(step2[11], zero); |
| step1[14] = _mm_unpackhi_epi64(step2[8], zero); |
| } |
| |
| // stage 4 |
| { |
| const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64); |
| const __m128i k__cospi_p24_p08 = pair_set_epi16(cospi_24_64, cospi_8_64); |
| const __m128i k__cospi_m24_m08 = pair_set_epi16(-cospi_24_64, -cospi_8_64); |
| const __m128i lo_0_8 = _mm_unpacklo_epi16(output[0], zero); |
| const __m128i lo_9_14 = _mm_unpacklo_epi16(step2[8], step1[14]); |
| const __m128i lo_10_13 = _mm_unpacklo_epi16(step2[11], step1[13]); |
| const __m128i t = idct_madd_round_shift_sse2(lo_0_8, k__cospi_p16_p16); |
| step1[0] = _mm_packs_epi32(t, t); // step2 0&1 |
| step2[9] = idct_calc_wraplow_sse2(k__cospi_m08_p24, k__cospi_p24_p08, |
| lo_9_14); // step2 9&14 |
| step2[10] = idct_calc_wraplow_sse2(k__cospi_m24_m08, k__cospi_m08_p24, |
| lo_10_13); // step2 10&13 |
| step2[6] = _mm_unpackhi_epi64(step1[4], zero); |
| } |
| |
| // stage 5 |
| { |
| const __m128i lo_5_6 = _mm_unpacklo_epi16(step1[4], step2[6]); |
| step1[6] = idct_calc_wraplow_sse2(k__cospi_p16_p16, k__cospi_m16_p16, |
| lo_5_6); // step1 6&5 |
| step1[8] = _mm_add_epi16(step2[8], step2[11]); |
| step1[9] = _mm_add_epi16(step2[9], step2[10]); |
| step1[10] = _mm_sub_epi16(step2[9], step2[10]); |
| step1[11] = _mm_sub_epi16(step2[8], step2[11]); |
| step1[12] = _mm_unpackhi_epi64(step1[11], zero); |
| step1[13] = _mm_unpackhi_epi64(step1[10], zero); |
| step1[14] = _mm_unpackhi_epi64(step1[9], zero); |
| step1[15] = _mm_unpackhi_epi64(step1[8], zero); |
| } |
| |
| // stage 6 |
| { |
| const __m128i lo_10_13 = _mm_unpacklo_epi16(step1[10], step1[13]); |
| const __m128i lo_11_12 = _mm_unpacklo_epi16(step1[11], step1[12]); |
| step2[10] = idct_calc_wraplow_sse2(k__cospi_m16_p16, k__cospi_p16_p16, |
| lo_10_13); // step2 10&13 |
| step2[11] = idct_calc_wraplow_sse2(k__cospi_m16_p16, k__cospi_p16_p16, |
| lo_11_12); // step2 11&12 |
| step2[13] = _mm_unpackhi_epi64(step2[10], zero); |
| step2[12] = _mm_unpackhi_epi64(step2[11], zero); |
| step2[3] = _mm_add_epi16(step1[0], step1[4]); |
| step2[1] = _mm_add_epi16(step1[0], step1[6]); |
| step2[6] = _mm_sub_epi16(step1[0], step1[6]); |
| step2[4] = _mm_sub_epi16(step1[0], step1[4]); |
| step2[0] = _mm_unpackhi_epi64(step2[3], zero); |
| step2[2] = _mm_unpackhi_epi64(step2[1], zero); |
| step2[5] = _mm_unpackhi_epi64(step2[6], zero); |
| step2[7] = _mm_unpackhi_epi64(step2[4], zero); |
| } |
| |
| // stage 7. Left 8x16 only. |
| output[0] = _mm_add_epi16(step2[0], step1[15]); |
| output[1] = _mm_add_epi16(step2[1], step1[14]); |
| output[2] = _mm_add_epi16(step2[2], step2[13]); |
| output[3] = _mm_add_epi16(step2[3], step2[12]); |
| output[4] = _mm_add_epi16(step2[4], step2[11]); |
| output[5] = _mm_add_epi16(step2[5], step2[10]); |
| output[6] = _mm_add_epi16(step2[6], step1[9]); |
| output[7] = _mm_add_epi16(step2[7], step1[8]); |
| output[8] = _mm_sub_epi16(step2[7], step1[8]); |
| output[9] = _mm_sub_epi16(step2[6], step1[9]); |
| output[10] = _mm_sub_epi16(step2[5], step2[10]); |
| output[11] = _mm_sub_epi16(step2[4], step2[11]); |
| output[12] = _mm_sub_epi16(step2[3], step2[12]); |
| output[13] = _mm_sub_epi16(step2[2], step2[13]); |
| output[14] = _mm_sub_epi16(step2[1], step1[14]); |
| output[15] = _mm_sub_epi16(step2[0], step1[15]); |
| } |
| |
| static INLINE void idct16x16_10_pass2(__m128i *const l /*l[8]*/, |
| __m128i *const io /*io[16]*/) { |
| const __m128i zero = _mm_setzero_si128(); |
| __m128i step1[16], step2[16]; |
| |
| transpose_16bit_4x8(l, io); |
| |
| // stage 2 |
| butterfly(io[1], zero, cospi_30_64, cospi_2_64, &step2[8], &step2[15]); |
| butterfly(zero, io[3], cospi_6_64, cospi_26_64, &step2[11], &step2[12]); |
| |
| // stage 3 |
| butterfly(io[2], zero, cospi_28_64, cospi_4_64, &step1[4], &step1[7]); |
| |
| // stage 4 |
| step1[0] = butterfly_cospi16(io[0]); |
| butterfly(step2[15], step2[8], cospi_24_64, cospi_8_64, &step2[9], |
| &step2[14]); |
| butterfly(step2[11], step2[12], -cospi_8_64, -cospi_24_64, &step2[13], |
| &step2[10]); |
| |
| // stage 5 |
| butterfly(step1[7], step1[4], cospi_16_64, cospi_16_64, &step1[5], &step1[6]); |
| step1[8] = _mm_add_epi16(step2[8], step2[11]); |
| step1[9] = _mm_add_epi16(step2[9], step2[10]); |
| step1[10] = _mm_sub_epi16(step2[9], step2[10]); |
| step1[11] = _mm_sub_epi16(step2[8], step2[11]); |
| step1[12] = _mm_sub_epi16(step2[15], step2[12]); |
| step1[13] = _mm_sub_epi16(step2[14], step2[13]); |
| step1[14] = _mm_add_epi16(step2[14], step2[13]); |
| step1[15] = _mm_add_epi16(step2[15], step2[12]); |
| |
| // stage 6 |
| step2[0] = _mm_add_epi16(step1[0], step1[7]); |
| step2[1] = _mm_add_epi16(step1[0], step1[6]); |
| step2[2] = _mm_add_epi16(step1[0], step1[5]); |
| step2[3] = _mm_add_epi16(step1[0], step1[4]); |
| step2[4] = _mm_sub_epi16(step1[0], step1[4]); |
| step2[5] = _mm_sub_epi16(step1[0], step1[5]); |
| step2[6] = _mm_sub_epi16(step1[0], step1[6]); |
| step2[7] = _mm_sub_epi16(step1[0], step1[7]); |
| butterfly(step1[13], step1[10], cospi_16_64, cospi_16_64, &step2[10], |
| &step2[13]); |
| butterfly(step1[12], step1[11], cospi_16_64, cospi_16_64, &step2[11], |
| &step2[12]); |
| |
| // stage 7 |
| io[0] = _mm_add_epi16(step2[0], step1[15]); |
| io[1] = _mm_add_epi16(step2[1], step1[14]); |
| io[2] = _mm_add_epi16(step2[2], step2[13]); |
| io[3] = _mm_add_epi16(step2[3], step2[12]); |
| io[4] = _mm_add_epi16(step2[4], step2[11]); |
| io[5] = _mm_add_epi16(step2[5], step2[10]); |
| io[6] = _mm_add_epi16(step2[6], step1[9]); |
| io[7] = _mm_add_epi16(step2[7], step1[8]); |
| io[8] = _mm_sub_epi16(step2[7], step1[8]); |
| io[9] = _mm_sub_epi16(step2[6], step1[9]); |
| io[10] = _mm_sub_epi16(step2[5], step2[10]); |
| io[11] = _mm_sub_epi16(step2[4], step2[11]); |
| io[12] = _mm_sub_epi16(step2[3], step2[12]); |
| io[13] = _mm_sub_epi16(step2[2], step2[13]); |
| io[14] = _mm_sub_epi16(step2[1], step1[14]); |
| io[15] = _mm_sub_epi16(step2[0], step1[15]); |
| } |
| |
| static INLINE void idct32_8x32_quarter_2_stage_4_to_6( |
| __m128i *const step1 /*step1[16]*/, __m128i *const out /*out[16]*/) { |
| __m128i step2[32]; |
| |
| // stage 4 |
| step2[8] = step1[8]; |
| step2[15] = step1[15]; |
| butterfly(step1[14], step1[9], cospi_24_64, cospi_8_64, &step2[9], |
| &step2[14]); |
| butterfly(step1[13], step1[10], -cospi_8_64, cospi_24_64, &step2[10], |
| &step2[13]); |
| step2[11] = step1[11]; |
| step2[12] = step1[12]; |
| |
| // stage 5 |
| step1[8] = _mm_add_epi16(step2[8], step2[11]); |
| step1[9] = _mm_add_epi16(step2[9], step2[10]); |
| step1[10] = _mm_sub_epi16(step2[9], step2[10]); |
| step1[11] = _mm_sub_epi16(step2[8], step2[11]); |
| step1[12] = _mm_sub_epi16(step2[15], step2[12]); |
| step1[13] = _mm_sub_epi16(step2[14], step2[13]); |
| step1[14] = _mm_add_epi16(step2[14], step2[13]); |
| step1[15] = _mm_add_epi16(step2[15], step2[12]); |
| |
| // stage 6 |
| out[8] = step1[8]; |
| out[9] = step1[9]; |
| butterfly(step1[13], step1[10], cospi_16_64, cospi_16_64, &out[10], &out[13]); |
| butterfly(step1[12], step1[11], cospi_16_64, cospi_16_64, &out[11], &out[12]); |
| out[14] = step1[14]; |
| out[15] = step1[15]; |
| } |
| |
| static INLINE void idct32_8x32_quarter_3_4_stage_4_to_7( |
| __m128i *const step1 /*step1[32]*/, __m128i *const out /*out[32]*/) { |
| __m128i step2[32]; |
| |
| // stage 4 |
| step2[16] = _mm_add_epi16(step1[16], step1[19]); |
| step2[17] = _mm_add_epi16(step1[17], step1[18]); |
| step2[18] = _mm_sub_epi16(step1[17], step1[18]); |
| step2[19] = _mm_sub_epi16(step1[16], step1[19]); |
| step2[20] = _mm_sub_epi16(step1[23], step1[20]); |
| step2[21] = _mm_sub_epi16(step1[22], step1[21]); |
| step2[22] = _mm_add_epi16(step1[22], step1[21]); |
| step2[23] = _mm_add_epi16(step1[23], step1[20]); |
| |
| step2[24] = _mm_add_epi16(step1[24], step1[27]); |
| step2[25] = _mm_add_epi16(step1[25], step1[26]); |
| step2[26] = _mm_sub_epi16(step1[25], step1[26]); |
| step2[27] = _mm_sub_epi16(step1[24], step1[27]); |
| step2[28] = _mm_sub_epi16(step1[31], step1[28]); |
| step2[29] = _mm_sub_epi16(step1[30], step1[29]); |
| step2[30] = _mm_add_epi16(step1[29], step1[30]); |
| step2[31] = _mm_add_epi16(step1[28], step1[31]); |
| |
| // stage 5 |
| step1[16] = step2[16]; |
| step1[17] = step2[17]; |
| butterfly(step2[29], step2[18], cospi_24_64, cospi_8_64, &step1[18], |
| &step1[29]); |
| butterfly(step2[28], step2[19], cospi_24_64, cospi_8_64, &step1[19], |
| &step1[28]); |
| butterfly(step2[27], step2[20], -cospi_8_64, cospi_24_64, &step1[20], |
| &step1[27]); |
| butterfly(step2[26], step2[21], -cospi_8_64, cospi_24_64, &step1[21], |
| &step1[26]); |
| step1[22] = step2[22]; |
| step1[23] = step2[23]; |
| step1[24] = step2[24]; |
| step1[25] = step2[25]; |
| step1[30] = step2[30]; |
| step1[31] = step2[31]; |
| |
| // stage 6 |
| out[16] = _mm_add_epi16(step1[16], step1[23]); |
| out[17] = _mm_add_epi16(step1[17], step1[22]); |
| out[18] = _mm_add_epi16(step1[18], step1[21]); |
| out[19] = _mm_add_epi16(step1[19], step1[20]); |
| step2[20] = _mm_sub_epi16(step1[19], step1[20]); |
| step2[21] = _mm_sub_epi16(step1[18], step1[21]); |
| step2[22] = _mm_sub_epi16(step1[17], step1[22]); |
| step2[23] = _mm_sub_epi16(step1[16], step1[23]); |
| |
| step2[24] = _mm_sub_epi16(step1[31], step1[24]); |
| step2[25] = _mm_sub_epi16(step1[30], step1[25]); |
| step2[26] = _mm_sub_epi16(step1[29], step1[26]); |
| step2[27] = _mm_sub_epi16(step1[28], step1[27]); |
| out[28] = _mm_add_epi16(step1[27], step1[28]); |
| out[29] = _mm_add_epi16(step1[26], step1[29]); |
| out[30] = _mm_add_epi16(step1[25], step1[30]); |
| out[31] = _mm_add_epi16(step1[24], step1[31]); |
| |
| // stage 7 |
| butterfly(step2[27], step2[20], cospi_16_64, cospi_16_64, &out[20], &out[27]); |
| butterfly(step2[26], step2[21], cospi_16_64, cospi_16_64, &out[21], &out[26]); |
| butterfly(step2[25], step2[22], cospi_16_64, cospi_16_64, &out[22], &out[25]); |
| butterfly(step2[24], step2[23], cospi_16_64, cospi_16_64, &out[23], &out[24]); |
| } |
| |
| void idct4_sse2(__m128i *const in); |
| void vpx_idct8_sse2(__m128i *const in); |
| void idct16_sse2(__m128i *const in0, __m128i *const in1); |
| void iadst4_sse2(__m128i *const in); |
| void iadst8_sse2(__m128i *const in); |
| void vpx_iadst16_8col_sse2(__m128i *const in); |
| void iadst16_sse2(__m128i *const in0, __m128i *const in1); |
| void idct32_1024_8x32(const __m128i *const in, __m128i *const out); |
| void idct32_34_8x32_sse2(const __m128i *const in, __m128i *const out); |
| void idct32_34_8x32_ssse3(const __m128i *const in, __m128i *const out); |
| |
| #endif // VPX_VPX_DSP_X86_INV_TXFM_SSE2_H_ |
