| /* |
| * Copyright (c) 2012 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 <assert.h> |
| #include <emmintrin.h> // SSE2 |
| #include "./vpx_config.h" |
| #include "vpx/vpx_integer.h" |
| #include "vp9/common/vp9_common.h" |
| #include "vp9/common/vp9_idct.h" |
| |
| #if HAVE_SSE2 |
| // In order to improve performance, clip absolute diff values to [0, 255], |
| // which allows to keep the additions/subtractions in 8 bits. |
| void vp9_dc_only_idct_add_sse2(int input_dc, uint8_t *pred_ptr, |
| uint8_t *dst_ptr, int pitch, int stride) { |
| int a1; |
| int16_t out; |
| uint8_t abs_diff; |
| __m128i p0, p1, p2, p3; |
| unsigned int extended_diff; |
| __m128i diff; |
| |
| out = dct_const_round_shift(input_dc * cospi_16_64); |
| out = dct_const_round_shift(out * cospi_16_64); |
| a1 = ROUND_POWER_OF_TWO(out, 4); |
| |
| // Read prediction data. |
| p0 = _mm_cvtsi32_si128 (*(const int *)(pred_ptr + 0 * pitch)); |
| p1 = _mm_cvtsi32_si128 (*(const int *)(pred_ptr + 1 * pitch)); |
| p2 = _mm_cvtsi32_si128 (*(const int *)(pred_ptr + 2 * pitch)); |
| p3 = _mm_cvtsi32_si128 (*(const int *)(pred_ptr + 3 * pitch)); |
| |
| // Unpack prediction data, and store 4x4 array in 1 XMM register. |
| p0 = _mm_unpacklo_epi32(p0, p1); |
| p2 = _mm_unpacklo_epi32(p2, p3); |
| p0 = _mm_unpacklo_epi64(p0, p2); |
| |
| // Clip dc value to [0, 255] range. Then, do addition or subtraction |
| // according to its sign. |
| if (a1 >= 0) { |
| abs_diff = (a1 > 255) ? 255 : a1; |
| extended_diff = abs_diff * 0x01010101u; |
| diff = _mm_shuffle_epi32(_mm_cvtsi32_si128((int)extended_diff), 0); |
| |
| p1 = _mm_adds_epu8(p0, diff); |
| } else { |
| abs_diff = (a1 < -255) ? 255 : -a1; |
| extended_diff = abs_diff * 0x01010101u; |
| diff = _mm_shuffle_epi32(_mm_cvtsi32_si128((int)extended_diff), 0); |
| |
| p1 = _mm_subs_epu8(p0, diff); |
| } |
| |
| // Store results to dst. |
| *(int *)dst_ptr = _mm_cvtsi128_si32(p1); |
| dst_ptr += stride; |
| |
| p1 = _mm_srli_si128(p1, 4); |
| *(int *)dst_ptr = _mm_cvtsi128_si32(p1); |
| dst_ptr += stride; |
| |
| p1 = _mm_srli_si128(p1, 4); |
| *(int *)dst_ptr = _mm_cvtsi128_si32(p1); |
| dst_ptr += stride; |
| |
| p1 = _mm_srli_si128(p1, 4); |
| *(int *)dst_ptr = _mm_cvtsi128_si32(p1); |
| } |
| |
| void vp9_short_idct4x4_sse2(int16_t *input, int16_t *output, int pitch) { |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i eight = _mm_set1_epi16(8); |
| const __m128i cst = _mm_setr_epi16((int16_t)cospi_16_64, (int16_t)cospi_16_64, |
| (int16_t)cospi_16_64, (int16_t)-cospi_16_64, |
| (int16_t)cospi_24_64, (int16_t)-cospi_8_64, |
| (int16_t)cospi_8_64, (int16_t)cospi_24_64); |
| const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| const int half_pitch = pitch >> 1; |
| __m128i input0, input1, input2, input3; |
| |
| // Rows |
| input0 = _mm_loadl_epi64((__m128i *)input); |
| input1 = _mm_loadl_epi64((__m128i *)(input + 4)); |
| input2 = _mm_loadl_epi64((__m128i *)(input + 8)); |
| input3 = _mm_loadl_epi64((__m128i *)(input + 12)); |
| |
| // Construct i3, i1, i3, i1, i2, i0, i2, i0 |
| input0 = _mm_shufflelo_epi16(input0, 0xd8); |
| input1 = _mm_shufflelo_epi16(input1, 0xd8); |
| input2 = _mm_shufflelo_epi16(input2, 0xd8); |
| input3 = _mm_shufflelo_epi16(input3, 0xd8); |
| |
| input0 = _mm_unpacklo_epi32(input0, input0); |
| input1 = _mm_unpacklo_epi32(input1, input1); |
| input2 = _mm_unpacklo_epi32(input2, input2); |
| input3 = _mm_unpacklo_epi32(input3, input3); |
| |
| // Stage 1 |
| input0 = _mm_madd_epi16(input0, cst); |
| input1 = _mm_madd_epi16(input1, cst); |
| input2 = _mm_madd_epi16(input2, cst); |
| input3 = _mm_madd_epi16(input3, cst); |
| |
| input0 = _mm_add_epi32(input0, rounding); |
| input1 = _mm_add_epi32(input1, rounding); |
| input2 = _mm_add_epi32(input2, rounding); |
| input3 = _mm_add_epi32(input3, rounding); |
| |
| input0 = _mm_srai_epi32(input0, DCT_CONST_BITS); |
| input1 = _mm_srai_epi32(input1, DCT_CONST_BITS); |
| input2 = _mm_srai_epi32(input2, DCT_CONST_BITS); |
| input3 = _mm_srai_epi32(input3, DCT_CONST_BITS); |
| |
| // Stage 2 |
| input0 = _mm_packs_epi32(input0, zero); |
| input1 = _mm_packs_epi32(input1, zero); |
| input2 = _mm_packs_epi32(input2, zero); |
| input3 = _mm_packs_epi32(input3, zero); |
| |
| // Transpose |
| input1 = _mm_unpacklo_epi16(input0, input1); |
| input3 = _mm_unpacklo_epi16(input2, input3); |
| input0 = _mm_unpacklo_epi32(input1, input3); |
| input1 = _mm_unpackhi_epi32(input1, input3); |
| |
| // Switch column2, column 3, and then, we got: |
| // input2: column1, column 0; input3: column2, column 3. |
| input1 = _mm_shuffle_epi32(input1, 0x4e); |
| input2 = _mm_add_epi16(input0, input1); |
| input3 = _mm_sub_epi16(input0, input1); |
| |
| // Columns |
| // Construct i3, i1, i3, i1, i2, i0, i2, i0 |
| input0 = _mm_shufflelo_epi16(input2, 0xd8); |
| input1 = _mm_shufflehi_epi16(input2, 0xd8); |
| input2 = _mm_shufflehi_epi16(input3, 0xd8); |
| input3 = _mm_shufflelo_epi16(input3, 0xd8); |
| |
| input0 = _mm_unpacklo_epi32(input0, input0); |
| input1 = _mm_unpackhi_epi32(input1, input1); |
| input2 = _mm_unpackhi_epi32(input2, input2); |
| input3 = _mm_unpacklo_epi32(input3, input3); |
| |
| // Stage 1 |
| input0 = _mm_madd_epi16(input0, cst); |
| input1 = _mm_madd_epi16(input1, cst); |
| input2 = _mm_madd_epi16(input2, cst); |
| input3 = _mm_madd_epi16(input3, cst); |
| |
| input0 = _mm_add_epi32(input0, rounding); |
| input1 = _mm_add_epi32(input1, rounding); |
| input2 = _mm_add_epi32(input2, rounding); |
| input3 = _mm_add_epi32(input3, rounding); |
| |
| input0 = _mm_srai_epi32(input0, DCT_CONST_BITS); |
| input1 = _mm_srai_epi32(input1, DCT_CONST_BITS); |
| input2 = _mm_srai_epi32(input2, DCT_CONST_BITS); |
| input3 = _mm_srai_epi32(input3, DCT_CONST_BITS); |
| |
| // Stage 2 |
| input0 = _mm_packs_epi32(input0, zero); |
| input1 = _mm_packs_epi32(input1, zero); |
| input2 = _mm_packs_epi32(input2, zero); |
| input3 = _mm_packs_epi32(input3, zero); |
| |
| // Transpose |
| input1 = _mm_unpacklo_epi16(input0, input1); |
| input3 = _mm_unpacklo_epi16(input2, input3); |
| input0 = _mm_unpacklo_epi32(input1, input3); |
| input1 = _mm_unpackhi_epi32(input1, input3); |
| |
| // Switch column2, column 3, and then, we got: |
| // input2: column1, column 0; input3: column2, column 3. |
| input1 = _mm_shuffle_epi32(input1, 0x4e); |
| input2 = _mm_add_epi16(input0, input1); |
| input3 = _mm_sub_epi16(input0, input1); |
| |
| // Final round and shift |
| input2 = _mm_add_epi16(input2, eight); |
| input3 = _mm_add_epi16(input3, eight); |
| |
| input2 = _mm_srai_epi16(input2, 4); |
| input3 = _mm_srai_epi16(input3, 4); |
| |
| // Store results |
| _mm_storel_epi64((__m128i *)output, input2); |
| input2 = _mm_srli_si128(input2, 8); |
| _mm_storel_epi64((__m128i *)(output + half_pitch), input2); |
| |
| _mm_storel_epi64((__m128i *)(output + 3 * half_pitch), input3); |
| input3 = _mm_srli_si128(input3, 8); |
| _mm_storel_epi64((__m128i *)(output + 2 * half_pitch), input3); |
| } |
| |
| void vp9_idct4_1d_sse2(int16_t *input, int16_t *output) { |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i c1 = _mm_setr_epi16((int16_t)cospi_16_64, (int16_t)cospi_16_64, |
| (int16_t)cospi_16_64, (int16_t)-cospi_16_64, |
| (int16_t)cospi_24_64, (int16_t)-cospi_8_64, |
| (int16_t)cospi_8_64, (int16_t)cospi_24_64); |
| const __m128i c2 = _mm_setr_epi16(1, 1, 1, 1, 1, -1, 1, -1); |
| |
| const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| __m128i in, temp; |
| |
| // Load input data. |
| in = _mm_loadl_epi64((__m128i *)input); |
| |
| // Construct i3, i1, i3, i1, i2, i0, i2, i0 |
| in = _mm_shufflelo_epi16(in, 0xd8); |
| in = _mm_unpacklo_epi32(in, in); |
| |
| // Stage 1 |
| in = _mm_madd_epi16(in, c1); |
| in = _mm_add_epi32(in, rounding); |
| in = _mm_srai_epi32(in, DCT_CONST_BITS); |
| in = _mm_packs_epi32(in, zero); |
| |
| // Stage 2 |
| temp = _mm_shufflelo_epi16(in, 0x9c); |
| in = _mm_shufflelo_epi16(in, 0xc9); |
| in = _mm_unpacklo_epi64(temp, in); |
| in = _mm_madd_epi16(in, c2); |
| in = _mm_packs_epi32(in, zero); |
| |
| // Store results |
| _mm_storel_epi64((__m128i *)output, in); |
| } |
| |
| #define TRANSPOSE_8X8(in0, in1, in2, in3, in4, in5, in6, in7, \ |
| out0, out1, out2, out3, out4, out5, out6, out7) \ |
| { \ |
| const __m128i tr0_0 = _mm_unpacklo_epi16(in0, in1); \ |
| const __m128i tr0_1 = _mm_unpacklo_epi16(in2, in3); \ |
| const __m128i tr0_2 = _mm_unpackhi_epi16(in0, in1); \ |
| const __m128i tr0_3 = _mm_unpackhi_epi16(in2, in3); \ |
| const __m128i tr0_4 = _mm_unpacklo_epi16(in4, in5); \ |
| const __m128i tr0_5 = _mm_unpacklo_epi16(in6, in7); \ |
| const __m128i tr0_6 = _mm_unpackhi_epi16(in4, in5); \ |
| const __m128i tr0_7 = _mm_unpackhi_epi16(in6, in7); \ |
| \ |
| 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); \ |
| const __m128i tr1_4 = _mm_unpacklo_epi32(tr0_4, tr0_5); \ |
| const __m128i tr1_5 = _mm_unpacklo_epi32(tr0_6, tr0_7); \ |
| const __m128i tr1_6 = _mm_unpackhi_epi32(tr0_4, tr0_5); \ |
| const __m128i tr1_7 = _mm_unpackhi_epi32(tr0_6, tr0_7); \ |
| \ |
| out0 = _mm_unpacklo_epi64(tr1_0, tr1_4); \ |
| out1 = _mm_unpackhi_epi64(tr1_0, tr1_4); \ |
| out2 = _mm_unpacklo_epi64(tr1_2, tr1_6); \ |
| out3 = _mm_unpackhi_epi64(tr1_2, tr1_6); \ |
| out4 = _mm_unpacklo_epi64(tr1_1, tr1_5); \ |
| out5 = _mm_unpackhi_epi64(tr1_1, tr1_5); \ |
| out6 = _mm_unpacklo_epi64(tr1_3, tr1_7); \ |
| out7 = _mm_unpackhi_epi64(tr1_3, tr1_7); \ |
| } |
| |
| #define TRANSPOSE_4X8(in0, in1, in2, in3, in4, in5, in6, in7, \ |
| out0, out1, out2, out3, out4, out5, out6, out7) \ |
| { \ |
| const __m128i tr0_0 = _mm_unpacklo_epi16(in0, in1); \ |
| const __m128i tr0_1 = _mm_unpacklo_epi16(in2, in3); \ |
| const __m128i tr0_4 = _mm_unpacklo_epi16(in4, in5); \ |
| const __m128i tr0_5 = _mm_unpacklo_epi16(in6, in7); \ |
| \ |
| const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1); \ |
| const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1); \ |
| const __m128i tr1_4 = _mm_unpacklo_epi32(tr0_4, tr0_5); \ |
| const __m128i tr1_6 = _mm_unpackhi_epi32(tr0_4, tr0_5); \ |
| \ |
| out0 = _mm_unpacklo_epi64(tr1_0, tr1_4); \ |
| out1 = _mm_unpackhi_epi64(tr1_0, tr1_4); \ |
| out2 = _mm_unpacklo_epi64(tr1_2, tr1_6); \ |
| out3 = _mm_unpackhi_epi64(tr1_2, tr1_6); \ |
| out4 = out5 = out6 = out7 = zero; \ |
| } |
| |
| #define TRANSPOSE_8X4(in0, in1, in2, in3, out0, out1, out2, out3) \ |
| { \ |
| const __m128i tr0_0 = _mm_unpacklo_epi16(in0, in1); \ |
| const __m128i tr0_1 = _mm_unpacklo_epi16(in2, in3); \ |
| const __m128i tr0_2 = _mm_unpackhi_epi16(in0, in1); \ |
| const __m128i tr0_3 = _mm_unpackhi_epi16(in2, in3); \ |
| \ |
| in0 = _mm_unpacklo_epi32(tr0_0, tr0_1); /* i1 i0 */ \ |
| in1 = _mm_unpackhi_epi32(tr0_0, tr0_1); /* i3 i2 */ \ |
| in2 = _mm_unpacklo_epi32(tr0_2, tr0_3); /* i5 i4 */ \ |
| in3 = _mm_unpackhi_epi32(tr0_2, tr0_3); /* i7 i6 */ \ |
| } |
| |
| #define IDCT8x8_1D \ |
| /* Stage1 */ \ |
| { \ |
| const __m128i lo_17 = _mm_unpacklo_epi16(in1, in7); \ |
| const __m128i hi_17 = _mm_unpackhi_epi16(in1, in7); \ |
| const __m128i lo_35 = _mm_unpacklo_epi16(in3, in5); \ |
| const __m128i hi_35 = _mm_unpackhi_epi16(in3, in5); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_17, stg1_0); \ |
| tmp1 = _mm_madd_epi16(hi_17, stg1_0); \ |
| tmp2 = _mm_madd_epi16(lo_17, stg1_1); \ |
| tmp3 = _mm_madd_epi16(hi_17, stg1_1); \ |
| tmp4 = _mm_madd_epi16(lo_35, stg1_2); \ |
| tmp5 = _mm_madd_epi16(hi_35, stg1_2); \ |
| tmp6 = _mm_madd_epi16(lo_35, stg1_3); \ |
| tmp7 = _mm_madd_epi16(hi_35, stg1_3); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| tmp4 = _mm_add_epi32(tmp4, rounding); \ |
| tmp5 = _mm_add_epi32(tmp5, rounding); \ |
| tmp6 = _mm_add_epi32(tmp6, rounding); \ |
| tmp7 = _mm_add_epi32(tmp7, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \ |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \ |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \ |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \ |
| \ |
| stp1_4 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp1_7 = _mm_packs_epi32(tmp2, tmp3); \ |
| stp1_5 = _mm_packs_epi32(tmp4, tmp5); \ |
| stp1_6 = _mm_packs_epi32(tmp6, tmp7); \ |
| } \ |
| \ |
| /* Stage2 */ \ |
| { \ |
| const __m128i lo_04 = _mm_unpacklo_epi16(in0, in4); \ |
| const __m128i hi_04 = _mm_unpackhi_epi16(in0, in4); \ |
| const __m128i lo_26 = _mm_unpacklo_epi16(in2, in6); \ |
| const __m128i hi_26 = _mm_unpackhi_epi16(in2, in6); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_04, stg2_0); \ |
| tmp1 = _mm_madd_epi16(hi_04, stg2_0); \ |
| tmp2 = _mm_madd_epi16(lo_04, stg2_1); \ |
| tmp3 = _mm_madd_epi16(hi_04, stg2_1); \ |
| tmp4 = _mm_madd_epi16(lo_26, stg2_2); \ |
| tmp5 = _mm_madd_epi16(hi_26, stg2_2); \ |
| tmp6 = _mm_madd_epi16(lo_26, stg2_3); \ |
| tmp7 = _mm_madd_epi16(hi_26, stg2_3); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| tmp4 = _mm_add_epi32(tmp4, rounding); \ |
| tmp5 = _mm_add_epi32(tmp5, rounding); \ |
| tmp6 = _mm_add_epi32(tmp6, rounding); \ |
| tmp7 = _mm_add_epi32(tmp7, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \ |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \ |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \ |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \ |
| \ |
| stp2_0 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp2_1 = _mm_packs_epi32(tmp2, tmp3); \ |
| stp2_2 = _mm_packs_epi32(tmp4, tmp5); \ |
| stp2_3 = _mm_packs_epi32(tmp6, tmp7); \ |
| \ |
| stp2_4 = _mm_adds_epi16(stp1_4, stp1_5); \ |
| stp2_5 = _mm_subs_epi16(stp1_4, stp1_5); \ |
| stp2_6 = _mm_subs_epi16(stp1_7, stp1_6); \ |
| stp2_7 = _mm_adds_epi16(stp1_7, stp1_6); \ |
| } \ |
| \ |
| /* Stage3 */ \ |
| { \ |
| const __m128i lo_56 = _mm_unpacklo_epi16(stp2_6, stp2_5); \ |
| const __m128i hi_56 = _mm_unpackhi_epi16(stp2_6, stp2_5); \ |
| \ |
| stp1_0 = _mm_adds_epi16(stp2_0, stp2_3); \ |
| stp1_1 = _mm_adds_epi16(stp2_1, stp2_2); \ |
| stp1_2 = _mm_subs_epi16(stp2_1, stp2_2); \ |
| stp1_3 = _mm_subs_epi16(stp2_0, stp2_3); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_56, stg2_1); \ |
| tmp1 = _mm_madd_epi16(hi_56, stg2_1); \ |
| tmp2 = _mm_madd_epi16(lo_56, stg2_0); \ |
| tmp3 = _mm_madd_epi16(hi_56, stg2_0); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| \ |
| stp1_5 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp1_6 = _mm_packs_epi32(tmp2, tmp3); \ |
| } \ |
| \ |
| /* Stage4 */ \ |
| in0 = _mm_adds_epi16(stp1_0, stp2_7); \ |
| in1 = _mm_adds_epi16(stp1_1, stp1_6); \ |
| in2 = _mm_adds_epi16(stp1_2, stp1_5); \ |
| in3 = _mm_adds_epi16(stp1_3, stp2_4); \ |
| in4 = _mm_subs_epi16(stp1_3, stp2_4); \ |
| in5 = _mm_subs_epi16(stp1_2, stp1_5); \ |
| in6 = _mm_subs_epi16(stp1_1, stp1_6); \ |
| in7 = _mm_subs_epi16(stp1_0, stp2_7); |
| |
| void vp9_short_idct8x8_sse2(int16_t *input, int16_t *output, int pitch) { |
| const int half_pitch = pitch >> 1; |
| const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| const __m128i final_rounding = _mm_set1_epi16(1<<4); |
| const __m128i stg1_0 = pair_set_epi16(cospi_28_64, -cospi_4_64); |
| const __m128i stg1_1 = pair_set_epi16(cospi_4_64, cospi_28_64); |
| const __m128i stg1_2 = pair_set_epi16(-cospi_20_64, cospi_12_64); |
| const __m128i stg1_3 = pair_set_epi16(cospi_12_64, cospi_20_64); |
| const __m128i stg2_0 = pair_set_epi16(cospi_16_64, cospi_16_64); |
| const __m128i stg2_1 = pair_set_epi16(cospi_16_64, -cospi_16_64); |
| const __m128i stg2_2 = pair_set_epi16(cospi_24_64, -cospi_8_64); |
| const __m128i stg2_3 = pair_set_epi16(cospi_8_64, cospi_24_64); |
| |
| __m128i in0, in1, in2, in3, in4, in5, in6, in7; |
| __m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7; |
| __m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7; |
| __m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; |
| int i; |
| |
| // Load input data. |
| in0 = _mm_load_si128((__m128i *)input); |
| in1 = _mm_load_si128((__m128i *)(input + 8 * 1)); |
| in2 = _mm_load_si128((__m128i *)(input + 8 * 2)); |
| in3 = _mm_load_si128((__m128i *)(input + 8 * 3)); |
| in4 = _mm_load_si128((__m128i *)(input + 8 * 4)); |
| in5 = _mm_load_si128((__m128i *)(input + 8 * 5)); |
| in6 = _mm_load_si128((__m128i *)(input + 8 * 6)); |
| in7 = _mm_load_si128((__m128i *)(input + 8 * 7)); |
| |
| // 2-D |
| for (i = 0; i < 2; i++) { |
| // 8x8 Transpose is copied from vp9_short_fdct8x8_sse2() |
| TRANSPOSE_8X8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| |
| // 4-stage 1D idct8x8 |
| IDCT8x8_1D |
| } |
| |
| // Final rounding and shift |
| in0 = _mm_adds_epi16(in0, final_rounding); |
| in1 = _mm_adds_epi16(in1, final_rounding); |
| in2 = _mm_adds_epi16(in2, final_rounding); |
| in3 = _mm_adds_epi16(in3, final_rounding); |
| in4 = _mm_adds_epi16(in4, final_rounding); |
| in5 = _mm_adds_epi16(in5, final_rounding); |
| in6 = _mm_adds_epi16(in6, final_rounding); |
| in7 = _mm_adds_epi16(in7, final_rounding); |
| |
| in0 = _mm_srai_epi16(in0, 5); |
| in1 = _mm_srai_epi16(in1, 5); |
| in2 = _mm_srai_epi16(in2, 5); |
| in3 = _mm_srai_epi16(in3, 5); |
| in4 = _mm_srai_epi16(in4, 5); |
| in5 = _mm_srai_epi16(in5, 5); |
| in6 = _mm_srai_epi16(in6, 5); |
| in7 = _mm_srai_epi16(in7, 5); |
| |
| // Store results |
| _mm_store_si128((__m128i *)output, in0); |
| _mm_store_si128((__m128i *)(output + half_pitch * 1), in1); |
| _mm_store_si128((__m128i *)(output + half_pitch * 2), in2); |
| _mm_store_si128((__m128i *)(output + half_pitch * 3), in3); |
| _mm_store_si128((__m128i *)(output + half_pitch * 4), in4); |
| _mm_store_si128((__m128i *)(output + half_pitch * 5), in5); |
| _mm_store_si128((__m128i *)(output + half_pitch * 6), in6); |
| _mm_store_si128((__m128i *)(output + half_pitch * 7), in7); |
| } |
| |
| void vp9_short_idct10_8x8_sse2(int16_t *input, int16_t *output, int pitch) { |
| const int half_pitch = pitch >> 1; |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| const __m128i final_rounding = _mm_set1_epi16(1<<4); |
| const __m128i stg1_0 = pair_set_epi16(cospi_28_64, -cospi_4_64); |
| const __m128i stg1_1 = pair_set_epi16(cospi_4_64, cospi_28_64); |
| const __m128i stg1_2 = pair_set_epi16(-cospi_20_64, cospi_12_64); |
| const __m128i stg1_3 = pair_set_epi16(cospi_12_64, cospi_20_64); |
| const __m128i stg2_0 = pair_set_epi16(cospi_16_64, cospi_16_64); |
| const __m128i stg2_1 = pair_set_epi16(cospi_16_64, -cospi_16_64); |
| const __m128i stg2_2 = pair_set_epi16(cospi_24_64, -cospi_8_64); |
| const __m128i stg2_3 = pair_set_epi16(cospi_8_64, cospi_24_64); |
| const __m128i stg3_0 = pair_set_epi16(-cospi_16_64, cospi_16_64); |
| |
| __m128i in0, in1, in2, in3, in4, in5, in6, in7; |
| __m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7; |
| __m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7; |
| __m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; |
| |
| // Rows. Load 4-row input data. |
| in0 = _mm_load_si128((__m128i *)input); |
| in1 = _mm_load_si128((__m128i *)(input + 8 * 1)); |
| in2 = _mm_load_si128((__m128i *)(input + 8 * 2)); |
| in3 = _mm_load_si128((__m128i *)(input + 8 * 3)); |
| |
| // 8x4 Transpose |
| TRANSPOSE_8X4(in0, in1, in2, in3, in0, in1, in2, in3) |
| |
| // Stage1 |
| { |
| const __m128i lo_17 = _mm_unpackhi_epi16(in0, in3); |
| const __m128i lo_35 = _mm_unpackhi_epi16(in1, in2); |
| |
| tmp0 = _mm_madd_epi16(lo_17, stg1_0); |
| tmp2 = _mm_madd_epi16(lo_17, stg1_1); |
| tmp4 = _mm_madd_epi16(lo_35, stg1_2); |
| tmp6 = _mm_madd_epi16(lo_35, stg1_3); |
| |
| tmp0 = _mm_add_epi32(tmp0, rounding); |
| tmp2 = _mm_add_epi32(tmp2, rounding); |
| tmp4 = _mm_add_epi32(tmp4, rounding); |
| tmp6 = _mm_add_epi32(tmp6, rounding); |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); |
| |
| stp1_4 = _mm_packs_epi32(tmp0, zero); |
| stp1_7 = _mm_packs_epi32(tmp2, zero); |
| stp1_5 = _mm_packs_epi32(tmp4, zero); |
| stp1_6 = _mm_packs_epi32(tmp6, zero); |
| } |
| |
| // Stage2 |
| { |
| const __m128i lo_04 = _mm_unpacklo_epi16(in0, in2); |
| const __m128i lo_26 = _mm_unpacklo_epi16(in1, in3); |
| |
| tmp0 = _mm_madd_epi16(lo_04, stg2_0); |
| tmp2 = _mm_madd_epi16(lo_04, stg2_1); |
| tmp4 = _mm_madd_epi16(lo_26, stg2_2); |
| tmp6 = _mm_madd_epi16(lo_26, stg2_3); |
| |
| tmp0 = _mm_add_epi32(tmp0, rounding); |
| tmp2 = _mm_add_epi32(tmp2, rounding); |
| tmp4 = _mm_add_epi32(tmp4, rounding); |
| tmp6 = _mm_add_epi32(tmp6, rounding); |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); |
| |
| stp2_0 = _mm_packs_epi32(tmp0, zero); |
| stp2_1 = _mm_packs_epi32(tmp2, zero); |
| stp2_2 = _mm_packs_epi32(tmp4, zero); |
| stp2_3 = _mm_packs_epi32(tmp6, zero); |
| |
| stp2_4 = _mm_adds_epi16(stp1_4, stp1_5); |
| stp2_5 = _mm_subs_epi16(stp1_4, stp1_5); |
| stp2_6 = _mm_subs_epi16(stp1_7, stp1_6); |
| stp2_7 = _mm_adds_epi16(stp1_7, stp1_6); |
| } |
| |
| // Stage3 |
| { |
| const __m128i lo_56 = _mm_unpacklo_epi16(stp2_5, stp2_6); |
| stp1_0 = _mm_adds_epi16(stp2_0, stp2_3); |
| stp1_1 = _mm_adds_epi16(stp2_1, stp2_2); |
| stp1_2 = _mm_subs_epi16(stp2_1, stp2_2); |
| stp1_3 = _mm_subs_epi16(stp2_0, stp2_3); |
| |
| tmp0 = _mm_madd_epi16(lo_56, stg3_0); |
| tmp2 = _mm_madd_epi16(lo_56, stg2_0); // stg3_1 = stg2_0 |
| |
| tmp0 = _mm_add_epi32(tmp0, rounding); |
| tmp2 = _mm_add_epi32(tmp2, rounding); |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); |
| |
| stp1_5 = _mm_packs_epi32(tmp0, zero); |
| stp1_6 = _mm_packs_epi32(tmp2, zero); |
| } |
| |
| // Stage4 |
| in0 = _mm_adds_epi16(stp1_0, stp2_7); |
| in1 = _mm_adds_epi16(stp1_1, stp1_6); |
| in2 = _mm_adds_epi16(stp1_2, stp1_5); |
| in3 = _mm_adds_epi16(stp1_3, stp2_4); |
| in4 = _mm_subs_epi16(stp1_3, stp2_4); |
| in5 = _mm_subs_epi16(stp1_2, stp1_5); |
| in6 = _mm_subs_epi16(stp1_1, stp1_6); |
| in7 = _mm_subs_epi16(stp1_0, stp2_7); |
| |
| // Columns. 4x8 Transpose |
| TRANSPOSE_4X8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7) |
| |
| // 1D idct8x8 |
| IDCT8x8_1D |
| |
| // Final rounding and shift |
| in0 = _mm_adds_epi16(in0, final_rounding); |
| in1 = _mm_adds_epi16(in1, final_rounding); |
| in2 = _mm_adds_epi16(in2, final_rounding); |
| in3 = _mm_adds_epi16(in3, final_rounding); |
| in4 = _mm_adds_epi16(in4, final_rounding); |
| in5 = _mm_adds_epi16(in5, final_rounding); |
| in6 = _mm_adds_epi16(in6, final_rounding); |
| in7 = _mm_adds_epi16(in7, final_rounding); |
| |
| in0 = _mm_srai_epi16(in0, 5); |
| in1 = _mm_srai_epi16(in1, 5); |
| in2 = _mm_srai_epi16(in2, 5); |
| in3 = _mm_srai_epi16(in3, 5); |
| in4 = _mm_srai_epi16(in4, 5); |
| in5 = _mm_srai_epi16(in5, 5); |
| in6 = _mm_srai_epi16(in6, 5); |
| in7 = _mm_srai_epi16(in7, 5); |
| |
| // Store results |
| _mm_store_si128((__m128i *)output, in0); |
| _mm_store_si128((__m128i *)(output + half_pitch * 1), in1); |
| _mm_store_si128((__m128i *)(output + half_pitch * 2), in2); |
| _mm_store_si128((__m128i *)(output + half_pitch * 3), in3); |
| _mm_store_si128((__m128i *)(output + half_pitch * 4), in4); |
| _mm_store_si128((__m128i *)(output + half_pitch * 5), in5); |
| _mm_store_si128((__m128i *)(output + half_pitch * 6), in6); |
| _mm_store_si128((__m128i *)(output + half_pitch * 7), in7); |
| } |
| |
| #define IDCT16x16_1D \ |
| /* Stage2 */ \ |
| { \ |
| const __m128i lo_1_15 = _mm_unpacklo_epi16(in1, in15); \ |
| const __m128i hi_1_15 = _mm_unpackhi_epi16(in1, in15); \ |
| const __m128i lo_9_7 = _mm_unpacklo_epi16(in9, in7); \ |
| const __m128i hi_9_7 = _mm_unpackhi_epi16(in9, in7); \ |
| const __m128i lo_5_11 = _mm_unpacklo_epi16(in5, in11); \ |
| const __m128i hi_5_11 = _mm_unpackhi_epi16(in5, in11); \ |
| const __m128i lo_13_3 = _mm_unpacklo_epi16(in13, in3); \ |
| const __m128i hi_13_3 = _mm_unpackhi_epi16(in13, in3); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_1_15, stg2_0); \ |
| tmp1 = _mm_madd_epi16(hi_1_15, stg2_0); \ |
| tmp2 = _mm_madd_epi16(lo_1_15, stg2_1); \ |
| tmp3 = _mm_madd_epi16(hi_1_15, stg2_1); \ |
| tmp4 = _mm_madd_epi16(lo_9_7, stg2_2); \ |
| tmp5 = _mm_madd_epi16(hi_9_7, stg2_2); \ |
| tmp6 = _mm_madd_epi16(lo_9_7, stg2_3); \ |
| tmp7 = _mm_madd_epi16(hi_9_7, stg2_3); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| tmp4 = _mm_add_epi32(tmp4, rounding); \ |
| tmp5 = _mm_add_epi32(tmp5, rounding); \ |
| tmp6 = _mm_add_epi32(tmp6, rounding); \ |
| tmp7 = _mm_add_epi32(tmp7, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \ |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \ |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \ |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \ |
| \ |
| stp2_8 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp2_15 = _mm_packs_epi32(tmp2, tmp3); \ |
| stp2_9 = _mm_packs_epi32(tmp4, tmp5); \ |
| stp2_14 = _mm_packs_epi32(tmp6, tmp7); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_5_11, stg2_4); \ |
| tmp1 = _mm_madd_epi16(hi_5_11, stg2_4); \ |
| tmp2 = _mm_madd_epi16(lo_5_11, stg2_5); \ |
| tmp3 = _mm_madd_epi16(hi_5_11, stg2_5); \ |
| tmp4 = _mm_madd_epi16(lo_13_3, stg2_6); \ |
| tmp5 = _mm_madd_epi16(hi_13_3, stg2_6); \ |
| tmp6 = _mm_madd_epi16(lo_13_3, stg2_7); \ |
| tmp7 = _mm_madd_epi16(hi_13_3, stg2_7); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| tmp4 = _mm_add_epi32(tmp4, rounding); \ |
| tmp5 = _mm_add_epi32(tmp5, rounding); \ |
| tmp6 = _mm_add_epi32(tmp6, rounding); \ |
| tmp7 = _mm_add_epi32(tmp7, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \ |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \ |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \ |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \ |
| \ |
| stp2_10 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp2_13 = _mm_packs_epi32(tmp2, tmp3); \ |
| stp2_11 = _mm_packs_epi32(tmp4, tmp5); \ |
| stp2_12 = _mm_packs_epi32(tmp6, tmp7); \ |
| } \ |
| \ |
| /* Stage3 */ \ |
| { \ |
| const __m128i lo_2_14 = _mm_unpacklo_epi16(in2, in14); \ |
| const __m128i hi_2_14 = _mm_unpackhi_epi16(in2, in14); \ |
| const __m128i lo_10_6 = _mm_unpacklo_epi16(in10, in6); \ |
| const __m128i hi_10_6 = _mm_unpackhi_epi16(in10, in6); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_2_14, stg3_0); \ |
| tmp1 = _mm_madd_epi16(hi_2_14, stg3_0); \ |
| tmp2 = _mm_madd_epi16(lo_2_14, stg3_1); \ |
| tmp3 = _mm_madd_epi16(hi_2_14, stg3_1); \ |
| tmp4 = _mm_madd_epi16(lo_10_6, stg3_2); \ |
| tmp5 = _mm_madd_epi16(hi_10_6, stg3_2); \ |
| tmp6 = _mm_madd_epi16(lo_10_6, stg3_3); \ |
| tmp7 = _mm_madd_epi16(hi_10_6, stg3_3); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| tmp4 = _mm_add_epi32(tmp4, rounding); \ |
| tmp5 = _mm_add_epi32(tmp5, rounding); \ |
| tmp6 = _mm_add_epi32(tmp6, rounding); \ |
| tmp7 = _mm_add_epi32(tmp7, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \ |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \ |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \ |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \ |
| \ |
| stp1_4 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp1_7 = _mm_packs_epi32(tmp2, tmp3); \ |
| stp1_5 = _mm_packs_epi32(tmp4, tmp5); \ |
| stp1_6 = _mm_packs_epi32(tmp6, tmp7); \ |
| \ |
| stp1_8_0 = _mm_add_epi16(stp2_8, stp2_9); \ |
| stp1_9 = _mm_sub_epi16(stp2_8, stp2_9); \ |
| stp1_10 = _mm_sub_epi16(stp2_11, stp2_10); \ |
| stp1_11 = _mm_add_epi16(stp2_11, stp2_10); \ |
| \ |
| stp1_12_0 = _mm_add_epi16(stp2_12, stp2_13); \ |
| stp1_13 = _mm_sub_epi16(stp2_12, stp2_13); \ |
| stp1_14 = _mm_sub_epi16(stp2_15, stp2_14); \ |
| stp1_15 = _mm_add_epi16(stp2_15, stp2_14); \ |
| } \ |
| \ |
| /* Stage4 */ \ |
| { \ |
| const __m128i lo_0_8 = _mm_unpacklo_epi16(in0, in8); \ |
| const __m128i hi_0_8 = _mm_unpackhi_epi16(in0, in8); \ |
| const __m128i lo_4_12 = _mm_unpacklo_epi16(in4, in12); \ |
| const __m128i hi_4_12 = _mm_unpackhi_epi16(in4, in12); \ |
| \ |
| const __m128i lo_9_14 = _mm_unpacklo_epi16(stp1_9, stp1_14); \ |
| const __m128i hi_9_14 = _mm_unpackhi_epi16(stp1_9, stp1_14); \ |
| const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \ |
| const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_0_8, stg4_0); \ |
| tmp1 = _mm_madd_epi16(hi_0_8, stg4_0); \ |
| tmp2 = _mm_madd_epi16(lo_0_8, stg4_1); \ |
| tmp3 = _mm_madd_epi16(hi_0_8, stg4_1); \ |
| tmp4 = _mm_madd_epi16(lo_4_12, stg4_2); \ |
| tmp5 = _mm_madd_epi16(hi_4_12, stg4_2); \ |
| tmp6 = _mm_madd_epi16(lo_4_12, stg4_3); \ |
| tmp7 = _mm_madd_epi16(hi_4_12, stg4_3); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| tmp4 = _mm_add_epi32(tmp4, rounding); \ |
| tmp5 = _mm_add_epi32(tmp5, rounding); \ |
| tmp6 = _mm_add_epi32(tmp6, rounding); \ |
| tmp7 = _mm_add_epi32(tmp7, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \ |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \ |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \ |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \ |
| \ |
| stp2_0 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp2_1 = _mm_packs_epi32(tmp2, tmp3); \ |
| stp2_2 = _mm_packs_epi32(tmp4, tmp5); \ |
| stp2_3 = _mm_packs_epi32(tmp6, tmp7); \ |
| \ |
| stp2_4 = _mm_add_epi16(stp1_4, stp1_5); \ |
| stp2_5 = _mm_sub_epi16(stp1_4, stp1_5); \ |
| stp2_6 = _mm_sub_epi16(stp1_7, stp1_6); \ |
| stp2_7 = _mm_add_epi16(stp1_7, stp1_6); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_9_14, stg4_4); \ |
| tmp1 = _mm_madd_epi16(hi_9_14, stg4_4); \ |
| tmp2 = _mm_madd_epi16(lo_9_14, stg4_5); \ |
| tmp3 = _mm_madd_epi16(hi_9_14, stg4_5); \ |
| tmp4 = _mm_madd_epi16(lo_10_13, stg4_6); \ |
| tmp5 = _mm_madd_epi16(hi_10_13, stg4_6); \ |
| tmp6 = _mm_madd_epi16(lo_10_13, stg4_7); \ |
| tmp7 = _mm_madd_epi16(hi_10_13, stg4_7); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| tmp4 = _mm_add_epi32(tmp4, rounding); \ |
| tmp5 = _mm_add_epi32(tmp5, rounding); \ |
| tmp6 = _mm_add_epi32(tmp6, rounding); \ |
| tmp7 = _mm_add_epi32(tmp7, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \ |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \ |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \ |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \ |
| \ |
| stp2_9 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp2_14 = _mm_packs_epi32(tmp2, tmp3); \ |
| stp2_10 = _mm_packs_epi32(tmp4, tmp5); \ |
| stp2_13 = _mm_packs_epi32(tmp6, tmp7); \ |
| } \ |
| \ |
| /* Stage5 */ \ |
| { \ |
| const __m128i lo_6_5 = _mm_unpacklo_epi16(stp2_6, stp2_5); \ |
| const __m128i hi_6_5 = _mm_unpackhi_epi16(stp2_6, stp2_5); \ |
| \ |
| stp1_0 = _mm_add_epi16(stp2_0, stp2_3); \ |
| stp1_1 = _mm_add_epi16(stp2_1, stp2_2); \ |
| stp1_2 = _mm_sub_epi16(stp2_1, stp2_2); \ |
| stp1_3 = _mm_sub_epi16(stp2_0, stp2_3); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_6_5, stg4_1); \ |
| tmp1 = _mm_madd_epi16(hi_6_5, stg4_1); \ |
| tmp2 = _mm_madd_epi16(lo_6_5, stg4_0); \ |
| tmp3 = _mm_madd_epi16(hi_6_5, stg4_0); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| \ |
| stp1_5 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp1_6 = _mm_packs_epi32(tmp2, tmp3); \ |
| \ |
| stp1_8 = _mm_add_epi16(stp1_8_0, stp1_11); \ |
| stp1_9 = _mm_add_epi16(stp2_9, stp2_10); \ |
| stp1_10 = _mm_sub_epi16(stp2_9, stp2_10); \ |
| stp1_11 = _mm_sub_epi16(stp1_8_0, stp1_11); \ |
| \ |
| stp1_12 = _mm_sub_epi16(stp1_15, stp1_12_0); \ |
| stp1_13 = _mm_sub_epi16(stp2_14, stp2_13); \ |
| stp1_14 = _mm_add_epi16(stp2_14, stp2_13); \ |
| stp1_15 = _mm_add_epi16(stp1_15, stp1_12_0); \ |
| } \ |
| \ |
| /* Stage6 */ \ |
| { \ |
| const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \ |
| const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \ |
| const __m128i lo_11_12 = _mm_unpacklo_epi16(stp1_11, stp1_12); \ |
| const __m128i hi_11_12 = _mm_unpackhi_epi16(stp1_11, stp1_12); \ |
| \ |
| stp2_0 = _mm_add_epi16(stp1_0, stp2_7); \ |
| stp2_1 = _mm_add_epi16(stp1_1, stp1_6); \ |
| stp2_2 = _mm_add_epi16(stp1_2, stp1_5); \ |
| stp2_3 = _mm_add_epi16(stp1_3, stp2_4); \ |
| stp2_4 = _mm_sub_epi16(stp1_3, stp2_4); \ |
| stp2_5 = _mm_sub_epi16(stp1_2, stp1_5); \ |
| stp2_6 = _mm_sub_epi16(stp1_1, stp1_6); \ |
| stp2_7 = _mm_sub_epi16(stp1_0, stp2_7); \ |
| \ |
| tmp0 = _mm_madd_epi16(lo_10_13, stg6_0); \ |
| tmp1 = _mm_madd_epi16(hi_10_13, stg6_0); \ |
| tmp2 = _mm_madd_epi16(lo_10_13, stg4_0); \ |
| tmp3 = _mm_madd_epi16(hi_10_13, stg4_0); \ |
| tmp4 = _mm_madd_epi16(lo_11_12, stg6_0); \ |
| tmp5 = _mm_madd_epi16(hi_11_12, stg6_0); \ |
| tmp6 = _mm_madd_epi16(lo_11_12, stg4_0); \ |
| tmp7 = _mm_madd_epi16(hi_11_12, stg4_0); \ |
| \ |
| tmp0 = _mm_add_epi32(tmp0, rounding); \ |
| tmp1 = _mm_add_epi32(tmp1, rounding); \ |
| tmp2 = _mm_add_epi32(tmp2, rounding); \ |
| tmp3 = _mm_add_epi32(tmp3, rounding); \ |
| tmp4 = _mm_add_epi32(tmp4, rounding); \ |
| tmp5 = _mm_add_epi32(tmp5, rounding); \ |
| tmp6 = _mm_add_epi32(tmp6, rounding); \ |
| tmp7 = _mm_add_epi32(tmp7, rounding); \ |
| \ |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \ |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \ |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \ |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \ |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \ |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \ |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \ |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \ |
| \ |
| stp2_10 = _mm_packs_epi32(tmp0, tmp1); \ |
| stp2_13 = _mm_packs_epi32(tmp2, tmp3); \ |
| stp2_11 = _mm_packs_epi32(tmp4, tmp5); \ |
| stp2_12 = _mm_packs_epi32(tmp6, tmp7); \ |
| } |
| |
| void vp9_short_idct16x16_sse2(int16_t *input, int16_t *output, int pitch) { |
| const int half_pitch = pitch >> 1; |
| const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| const __m128i final_rounding = _mm_set1_epi16(1<<5); |
| const __m128i zero = _mm_setzero_si128(); |
| |
| const __m128i stg2_0 = pair_set_epi16(cospi_30_64, -cospi_2_64); |
| const __m128i stg2_1 = pair_set_epi16(cospi_2_64, cospi_30_64); |
| const __m128i stg2_2 = pair_set_epi16(cospi_14_64, -cospi_18_64); |
| const __m128i stg2_3 = pair_set_epi16(cospi_18_64, cospi_14_64); |
| const __m128i stg2_4 = pair_set_epi16(cospi_22_64, -cospi_10_64); |
| const __m128i stg2_5 = pair_set_epi16(cospi_10_64, cospi_22_64); |
| const __m128i stg2_6 = pair_set_epi16(cospi_6_64, -cospi_26_64); |
| const __m128i stg2_7 = pair_set_epi16(cospi_26_64, cospi_6_64); |
| |
| const __m128i stg3_0 = pair_set_epi16(cospi_28_64, -cospi_4_64); |
| const __m128i stg3_1 = pair_set_epi16(cospi_4_64, cospi_28_64); |
| const __m128i stg3_2 = pair_set_epi16(cospi_12_64, -cospi_20_64); |
| const __m128i stg3_3 = pair_set_epi16(cospi_20_64, cospi_12_64); |
| |
| const __m128i stg4_0 = pair_set_epi16(cospi_16_64, cospi_16_64); |
| const __m128i stg4_1 = pair_set_epi16(cospi_16_64, -cospi_16_64); |
| const __m128i stg4_2 = pair_set_epi16(cospi_24_64, -cospi_8_64); |
| const __m128i stg4_3 = pair_set_epi16(cospi_8_64, cospi_24_64); |
| const __m128i stg4_4 = pair_set_epi16(-cospi_8_64, cospi_24_64); |
| const __m128i stg4_5 = pair_set_epi16(cospi_24_64, cospi_8_64); |
| const __m128i stg4_6 = pair_set_epi16(-cospi_24_64, -cospi_8_64); |
| const __m128i stg4_7 = pair_set_epi16(-cospi_8_64, cospi_24_64); |
| |
| const __m128i stg6_0 = pair_set_epi16(-cospi_16_64, cospi_16_64); |
| |
| __m128i in0 = zero, in1 = zero, in2 = zero, in3 = zero, in4 = zero, |
| in5 = zero, in6 = zero, in7 = zero, in8 = zero, in9 = zero, |
| in10 = zero, in11 = zero, in12 = zero, in13 = zero, |
| in14 = zero, in15 = zero; |
| __m128i l0 = zero, l1 = zero, l2 = zero, l3 = zero, l4 = zero, l5 = zero, |
| l6 = zero, l7 = zero, l8 = zero, l9 = zero, l10 = zero, l11 = zero, |
| l12 = zero, l13 = zero, l14 = zero, l15 = zero; |
| __m128i r0 = zero, r1 = zero, r2 = zero, r3 = zero, r4 = zero, r5 = zero, |
| r6 = zero, r7 = zero, r8 = zero, r9 = zero, r10 = zero, r11 = zero, |
| r12 = zero, r13 = zero, r14 = zero, r15 = zero; |
| __m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7, |
| stp1_8, stp1_9, stp1_10, stp1_11, stp1_12, stp1_13, stp1_14, stp1_15, |
| stp1_8_0, stp1_12_0; |
| __m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7, |
| stp2_8, stp2_9, stp2_10, stp2_11, stp2_12, stp2_13, stp2_14, stp2_15; |
| __m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; |
| int i; |
| |
| // We work on a 8x16 block each time, and loop 4 times for 2-D 16x16 idct. |
| for (i = 0; i < 4; i++) { |
| // 1-D idct |
| if (i < 2) { |
| if (i == 1) input += 128; |
| |
| // Load input data. |
| in0 = _mm_load_si128((__m128i *)input); |
| in8 = _mm_load_si128((__m128i *)(input + 8 * 1)); |
| in1 = _mm_load_si128((__m128i *)(input + 8 * 2)); |
| in9 = _mm_load_si128((__m128i *)(input + 8 * 3)); |
| in2 = _mm_load_si128((__m128i *)(input + 8 * 4)); |
| in10 = _mm_load_si128((__m128i *)(input + 8 * 5)); |
| in3 = _mm_load_si128((__m128i *)(input + 8 * 6)); |
| in11 = _mm_load_si128((__m128i *)(input + 8 * 7)); |
| in4 = _mm_load_si128((__m128i *)(input + 8 * 8)); |
| in12 = _mm_load_si128((__m128i *)(input + 8 * 9)); |
| in5 = _mm_load_si128((__m128i *)(input + 8 * 10)); |
| in13 = _mm_load_si128((__m128i *)(input + 8 * 11)); |
| in6 = _mm_load_si128((__m128i *)(input + 8 * 12)); |
| in14 = _mm_load_si128((__m128i *)(input + 8 * 13)); |
| in7 = _mm_load_si128((__m128i *)(input + 8 * 14)); |
| in15 = _mm_load_si128((__m128i *)(input + 8 * 15)); |
| |
| TRANSPOSE_8X8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| TRANSPOSE_8X8(in8, in9, in10, in11, in12, in13, in14, in15, in8, in9, |
| in10, in11, in12, in13, in14, in15); |
| } |
| |
| if (i == 2) { |
| TRANSPOSE_8X8(l0, l1, l2, l3, l4, l5, l6, l7, in0, in1, in2, in3, in4, |
| in5, in6, in7); |
| TRANSPOSE_8X8(r0, r1, r2, r3, r4, r5, r6, r7, in8, in9, in10, in11, in12, |
| in13, in14, in15); |
| } |
| |
| if (i == 3) { |
| TRANSPOSE_8X8(l8, l9, l10, l11, l12, l13, l14, l15, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| TRANSPOSE_8X8(r8, r9, r10, r11, r12, r13, r14, r15, in8, in9, in10, in11, |
| in12, in13, in14, in15); |
| } |
| |
| IDCT16x16_1D |
| |
| // Stage7 |
| if (i == 0) { |
| // Left 8x16 |
| l0 = _mm_add_epi16(stp2_0, stp1_15); |
| l1 = _mm_add_epi16(stp2_1, stp1_14); |
| l2 = _mm_add_epi16(stp2_2, stp2_13); |
| l3 = _mm_add_epi16(stp2_3, stp2_12); |
| l4 = _mm_add_epi16(stp2_4, stp2_11); |
| l5 = _mm_add_epi16(stp2_5, stp2_10); |
| l6 = _mm_add_epi16(stp2_6, stp1_9); |
| l7 = _mm_add_epi16(stp2_7, stp1_8); |
| l8 = _mm_sub_epi16(stp2_7, stp1_8); |
| l9 = _mm_sub_epi16(stp2_6, stp1_9); |
| l10 = _mm_sub_epi16(stp2_5, stp2_10); |
| l11 = _mm_sub_epi16(stp2_4, stp2_11); |
| l12 = _mm_sub_epi16(stp2_3, stp2_12); |
| l13 = _mm_sub_epi16(stp2_2, stp2_13); |
| l14 = _mm_sub_epi16(stp2_1, stp1_14); |
| l15 = _mm_sub_epi16(stp2_0, stp1_15); |
| } else if (i == 1) { |
| // Right 8x16 |
| r0 = _mm_add_epi16(stp2_0, stp1_15); |
| r1 = _mm_add_epi16(stp2_1, stp1_14); |
| r2 = _mm_add_epi16(stp2_2, stp2_13); |
| r3 = _mm_add_epi16(stp2_3, stp2_12); |
| r4 = _mm_add_epi16(stp2_4, stp2_11); |
| r5 = _mm_add_epi16(stp2_5, stp2_10); |
| r6 = _mm_add_epi16(stp2_6, stp1_9); |
| r7 = _mm_add_epi16(stp2_7, stp1_8); |
| r8 = _mm_sub_epi16(stp2_7, stp1_8); |
| r9 = _mm_sub_epi16(stp2_6, stp1_9); |
| r10 = _mm_sub_epi16(stp2_5, stp2_10); |
| r11 = _mm_sub_epi16(stp2_4, stp2_11); |
| r12 = _mm_sub_epi16(stp2_3, stp2_12); |
| r13 = _mm_sub_epi16(stp2_2, stp2_13); |
| r14 = _mm_sub_epi16(stp2_1, stp1_14); |
| r15 = _mm_sub_epi16(stp2_0, stp1_15); |
| } else { |
| // 2-D |
| in0 = _mm_add_epi16(stp2_0, stp1_15); |
| in1 = _mm_add_epi16(stp2_1, stp1_14); |
| in2 = _mm_add_epi16(stp2_2, stp2_13); |
| in3 = _mm_add_epi16(stp2_3, stp2_12); |
| in4 = _mm_add_epi16(stp2_4, stp2_11); |
| in5 = _mm_add_epi16(stp2_5, stp2_10); |
| in6 = _mm_add_epi16(stp2_6, stp1_9); |
| in7 = _mm_add_epi16(stp2_7, stp1_8); |
| in8 = _mm_sub_epi16(stp2_7, stp1_8); |
| in9 = _mm_sub_epi16(stp2_6, stp1_9); |
| in10 = _mm_sub_epi16(stp2_5, stp2_10); |
| in11 = _mm_sub_epi16(stp2_4, stp2_11); |
| in12 = _mm_sub_epi16(stp2_3, stp2_12); |
| in13 = _mm_sub_epi16(stp2_2, stp2_13); |
| in14 = _mm_sub_epi16(stp2_1, stp1_14); |
| in15 = _mm_sub_epi16(stp2_0, stp1_15); |
| |
| // Final rounding and shift |
| in0 = _mm_adds_epi16(in0, final_rounding); |
| in1 = _mm_adds_epi16(in1, final_rounding); |
| in2 = _mm_adds_epi16(in2, final_rounding); |
| in3 = _mm_adds_epi16(in3, final_rounding); |
| in4 = _mm_adds_epi16(in4, final_rounding); |
| in5 = _mm_adds_epi16(in5, final_rounding); |
| in6 = _mm_adds_epi16(in6, final_rounding); |
| in7 = _mm_adds_epi16(in7, final_rounding); |
| in8 = _mm_adds_epi16(in8, final_rounding); |
| in9 = _mm_adds_epi16(in9, final_rounding); |
| in10 = _mm_adds_epi16(in10, final_rounding); |
| in11 = _mm_adds_epi16(in11, final_rounding); |
| in12 = _mm_adds_epi16(in12, final_rounding); |
| in13 = _mm_adds_epi16(in13, final_rounding); |
| in14 = _mm_adds_epi16(in14, final_rounding); |
| in15 = _mm_adds_epi16(in15, final_rounding); |
| |
| in0 = _mm_srai_epi16(in0, 6); |
| in1 = _mm_srai_epi16(in1, 6); |
| in2 = _mm_srai_epi16(in2, 6); |
| in3 = _mm_srai_epi16(in3, 6); |
| in4 = _mm_srai_epi16(in4, 6); |
| in5 = _mm_srai_epi16(in5, 6); |
| in6 = _mm_srai_epi16(in6, 6); |
| in7 = _mm_srai_epi16(in7, 6); |
| in8 = _mm_srai_epi16(in8, 6); |
| in9 = _mm_srai_epi16(in9, 6); |
| in10 = _mm_srai_epi16(in10, 6); |
| in11 = _mm_srai_epi16(in11, 6); |
| in12 = _mm_srai_epi16(in12, 6); |
| in13 = _mm_srai_epi16(in13, 6); |
| in14 = _mm_srai_epi16(in14, 6); |
| in15 = _mm_srai_epi16(in15, 6); |
| |
| // Store results |
| _mm_store_si128((__m128i *)output, in0); |
| _mm_store_si128((__m128i *)(output + half_pitch * 1), in1); |
| _mm_store_si128((__m128i *)(output + half_pitch * 2), in2); |
| _mm_store_si128((__m128i *)(output + half_pitch * 3), in3); |
| _mm_store_si128((__m128i *)(output + half_pitch * 4), in4); |
| _mm_store_si128((__m128i *)(output + half_pitch * 5), in5); |
| _mm_store_si128((__m128i *)(output + half_pitch * 6), in6); |
| _mm_store_si128((__m128i *)(output + half_pitch * 7), in7); |
| _mm_store_si128((__m128i *)(output + half_pitch * 8), in8); |
| _mm_store_si128((__m128i *)(output + half_pitch * 9), in9); |
| _mm_store_si128((__m128i *)(output + half_pitch * 10), in10); |
| _mm_store_si128((__m128i *)(output + half_pitch * 11), in11); |
| _mm_store_si128((__m128i *)(output + half_pitch * 12), in12); |
| _mm_store_si128((__m128i *)(output + half_pitch * 13), in13); |
| _mm_store_si128((__m128i *)(output + half_pitch * 14), in14); |
| _mm_store_si128((__m128i *)(output + half_pitch * 15), in15); |
| |
| output += 8; |
| } |
| } |
| } |
| |
| void vp9_short_idct10_16x16_sse2(int16_t *input, int16_t *output, int pitch) { |
| const int half_pitch = pitch >> 1; |
| const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| const __m128i final_rounding = _mm_set1_epi16(1<<5); |
| const __m128i zero = _mm_setzero_si128(); |
| |
| const __m128i stg2_0 = pair_set_epi16(cospi_30_64, -cospi_2_64); |
| const __m128i stg2_1 = pair_set_epi16(cospi_2_64, cospi_30_64); |
| const __m128i stg2_2 = pair_set_epi16(cospi_14_64, -cospi_18_64); |
| const __m128i stg2_3 = pair_set_epi16(cospi_18_64, cospi_14_64); |
| const __m128i stg2_4 = pair_set_epi16(cospi_22_64, -cospi_10_64); |
| const __m128i stg2_5 = pair_set_epi16(cospi_10_64, cospi_22_64); |
| const __m128i stg2_6 = pair_set_epi16(cospi_6_64, -cospi_26_64); |
| const __m128i stg2_7 = pair_set_epi16(cospi_26_64, cospi_6_64); |
| |
| const __m128i stg3_0 = pair_set_epi16(cospi_28_64, -cospi_4_64); |
| const __m128i stg3_1 = pair_set_epi16(cospi_4_64, cospi_28_64); |
| const __m128i stg3_2 = pair_set_epi16(cospi_12_64, -cospi_20_64); |
| const __m128i stg3_3 = pair_set_epi16(cospi_20_64, cospi_12_64); |
| |
| const __m128i stg4_0 = pair_set_epi16(cospi_16_64, cospi_16_64); |
| const __m128i stg4_1 = pair_set_epi16(cospi_16_64, -cospi_16_64); |
| const __m128i stg4_2 = pair_set_epi16(cospi_24_64, -cospi_8_64); |
| const __m128i stg4_3 = pair_set_epi16(cospi_8_64, cospi_24_64); |
| const __m128i stg4_4 = pair_set_epi16(-cospi_8_64, cospi_24_64); |
| const __m128i stg4_5 = pair_set_epi16(cospi_24_64, cospi_8_64); |
| const __m128i stg4_6 = pair_set_epi16(-cospi_24_64, -cospi_8_64); |
| const __m128i stg4_7 = pair_set_epi16(-cospi_8_64, cospi_24_64); |
| |
| const __m128i stg6_0 = pair_set_epi16(-cospi_16_64, cospi_16_64); |
| |
| __m128i in0 = zero, in1 = zero, in2 = zero, in3 = zero, in4 = zero, |
| in5 = zero, in6 = zero, in7 = zero, in8 = zero, in9 = zero, |
| in10 = zero, in11 = zero, in12 = zero, in13 = zero, |
| in14 = zero, in15 = zero; |
| __m128i l0 = zero, l1 = zero, l2 = zero, l3 = zero, l4 = zero, l5 = zero, |
| l6 = zero, l7 = zero, l8 = zero, l9 = zero, l10 = zero, l11 = zero, |
| l12 = zero, l13 = zero, l14 = zero, l15 = zero; |
| |
| __m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7, |
| stp1_8, stp1_9, stp1_10, stp1_11, stp1_12, stp1_13, stp1_14, stp1_15, |
| stp1_8_0, stp1_12_0; |
| __m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7, |
| stp2_8, stp2_9, stp2_10, stp2_11, stp2_12, stp2_13, stp2_14, stp2_15; |
| __m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; |
| int i; |
| |
| // 1-D idct. Load input data. |
| in0 = _mm_load_si128((__m128i *)input); |
| in8 = _mm_load_si128((__m128i *)(input + 8 * 1)); |
| in1 = _mm_load_si128((__m128i *)(input + 8 * 2)); |
| in9 = _mm_load_si128((__m128i *)(input + 8 * 3)); |
| in2 = _mm_load_si128((__m128i *)(input + 8 * 4)); |
| in10 = _mm_load_si128((__m128i *)(input + 8 * 5)); |
| in3 = _mm_load_si128((__m128i *)(input + 8 * 6)); |
| in11 = _mm_load_si128((__m128i *)(input + 8 * 7)); |
| |
| TRANSPOSE_8X4(in0, in1, in2, in3, in0, in1, in2, in3); |
| TRANSPOSE_8X4(in8, in9, in10, in11, in8, in9, in10, in11); |
| |
| // Stage2 |
| { |
| const __m128i lo_1_15 = _mm_unpackhi_epi16(in0, in11); |
| const __m128i lo_9_7 = _mm_unpackhi_epi16(in8, in3); |
| const __m128i lo_5_11 = _mm_unpackhi_epi16(in2, in9); |
| const __m128i lo_13_3 = _mm_unpackhi_epi16(in10, in1); |
| |
| tmp0 = _mm_madd_epi16(lo_1_15, stg2_0); |
| tmp2 = _mm_madd_epi16(lo_1_15, stg2_1); |
| tmp4 = _mm_madd_epi16(lo_9_7, stg2_2); |
| tmp6 = _mm_madd_epi16(lo_9_7, stg2_3); |
| tmp1 = _mm_madd_epi16(lo_5_11, stg2_4); |
| tmp3 = _mm_madd_epi16(lo_5_11, stg2_5); |
| tmp5 = _mm_madd_epi16(lo_13_3, stg2_6); |
| tmp7 = _mm_madd_epi16(lo_13_3, stg2_7); |
| |
| tmp0 = _mm_add_epi32(tmp0, rounding); |
| tmp2 = _mm_add_epi32(tmp2, rounding); |
| tmp4 = _mm_add_epi32(tmp4, rounding); |
| tmp6 = _mm_add_epi32(tmp6, rounding); |
| tmp1 = _mm_add_epi32(tmp1, rounding); |
| tmp3 = _mm_add_epi32(tmp3, rounding); |
| tmp5 = _mm_add_epi32(tmp5, rounding); |
| tmp7 = _mm_add_epi32(tmp7, rounding); |
| |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); |
| |
| stp2_8 = _mm_packs_epi32(tmp0, zero); |
| stp2_15 = _mm_packs_epi32(tmp2, zero); |
| stp2_9 = _mm_packs_epi32(tmp4, zero); |
| stp2_14 = _mm_packs_epi32(tmp6, zero); |
| |
| stp2_10 = _mm_packs_epi32(tmp1, zero); |
| stp2_13 = _mm_packs_epi32(tmp3, zero); |
| stp2_11 = _mm_packs_epi32(tmp5, zero); |
| stp2_12 = _mm_packs_epi32(tmp7, zero); |
| } |
| |
| // Stage3 |
| { |
| const __m128i lo_2_14 = _mm_unpacklo_epi16(in1, in11); |
| const __m128i lo_10_6 = _mm_unpacklo_epi16(in9, in3); |
| |
| tmp0 = _mm_madd_epi16(lo_2_14, stg3_0); |
| tmp2 = _mm_madd_epi16(lo_2_14, stg3_1); |
| tmp4 = _mm_madd_epi16(lo_10_6, stg3_2); |
| tmp6 = _mm_madd_epi16(lo_10_6, stg3_3); |
| |
| tmp0 = _mm_add_epi32(tmp0, rounding); |
| tmp2 = _mm_add_epi32(tmp2, rounding); |
| tmp4 = _mm_add_epi32(tmp4, rounding); |
| tmp6 = _mm_add_epi32(tmp6, rounding); |
| |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); |
| |
| stp1_4 = _mm_packs_epi32(tmp0, zero); |
| stp1_7 = _mm_packs_epi32(tmp2, zero); |
| stp1_5 = _mm_packs_epi32(tmp4, zero); |
| stp1_6 = _mm_packs_epi32(tmp6, zero); |
| |
| stp1_8_0 = _mm_add_epi16(stp2_8, stp2_9); |
| stp1_9 = _mm_sub_epi16(stp2_8, stp2_9); |
| stp1_10 = _mm_sub_epi16(stp2_11, stp2_10); |
| stp1_11 = _mm_add_epi16(stp2_11, stp2_10); |
| |
| stp1_12_0 = _mm_add_epi16(stp2_12, stp2_13); |
| stp1_13 = _mm_sub_epi16(stp2_12, stp2_13); |
| stp1_14 = _mm_sub_epi16(stp2_15, stp2_14); |
| stp1_15 = _mm_add_epi16(stp2_15, stp2_14); |
| } |
| |
| // Stage4 |
| { |
| const __m128i lo_0_8 = _mm_unpacklo_epi16(in0, in8); |
| const __m128i lo_4_12 = _mm_unpacklo_epi16(in2, in10); |
| const __m128i lo_9_14 = _mm_unpacklo_epi16(stp1_9, stp1_14); |
| const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); |
| |
| tmp0 = _mm_madd_epi16(lo_0_8, stg4_0); |
| tmp2 = _mm_madd_epi16(lo_0_8, stg4_1); |
| tmp4 = _mm_madd_epi16(lo_4_12, stg4_2); |
| tmp6 = _mm_madd_epi16(lo_4_12, stg4_3); |
| tmp1 = _mm_madd_epi16(lo_9_14, stg4_4); |
| tmp3 = _mm_madd_epi16(lo_9_14, stg4_5); |
| tmp5 = _mm_madd_epi16(lo_10_13, stg4_6); |
| tmp7 = _mm_madd_epi16(lo_10_13, stg4_7); |
| |
| tmp0 = _mm_add_epi32(tmp0, rounding); |
| tmp2 = _mm_add_epi32(tmp2, rounding); |
| tmp4 = _mm_add_epi32(tmp4, rounding); |
| tmp6 = _mm_add_epi32(tmp6, rounding); |
| tmp1 = _mm_add_epi32(tmp1, rounding); |
| tmp3 = _mm_add_epi32(tmp3, rounding); |
| tmp5 = _mm_add_epi32(tmp5, rounding); |
| tmp7 = _mm_add_epi32(tmp7, rounding); |
| |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); |
| tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); |
| tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); |
| |
| stp2_0 = _mm_packs_epi32(tmp0, zero); |
| stp2_1 = _mm_packs_epi32(tmp2, zero); |
| stp2_2 = _mm_packs_epi32(tmp4, zero); |
| stp2_3 = _mm_packs_epi32(tmp6, zero); |
| stp2_9 = _mm_packs_epi32(tmp1, zero); |
| stp2_14 = _mm_packs_epi32(tmp3, zero); |
| stp2_10 = _mm_packs_epi32(tmp5, zero); |
| stp2_13 = _mm_packs_epi32(tmp7, zero); |
| |
| stp2_4 = _mm_add_epi16(stp1_4, stp1_5); |
| stp2_5 = _mm_sub_epi16(stp1_4, stp1_5); |
| stp2_6 = _mm_sub_epi16(stp1_7, stp1_6); |
| stp2_7 = _mm_add_epi16(stp1_7, stp1_6); |
| } |
| |
| // Stage5 and Stage6 |
| { |
| stp1_0 = _mm_add_epi16(stp2_0, stp2_3); |
| stp1_1 = _mm_add_epi16(stp2_1, stp2_2); |
| stp1_2 = _mm_sub_epi16(stp2_1, stp2_2); |
| stp1_3 = _mm_sub_epi16(stp2_0, stp2_3); |
| |
| stp1_8 = _mm_add_epi16(stp1_8_0, stp1_11); |
| stp1_9 = _mm_add_epi16(stp2_9, stp2_10); |
| stp1_10 = _mm_sub_epi16(stp2_9, stp2_10); |
| stp1_11 = _mm_sub_epi16(stp1_8_0, stp1_11); |
| |
| stp1_12 = _mm_sub_epi16(stp1_15, stp1_12_0); |
| stp1_13 = _mm_sub_epi16(stp2_14, stp2_13); |
| stp1_14 = _mm_add_epi16(stp2_14, stp2_13); |
| stp1_15 = _mm_add_epi16(stp1_15, stp1_12_0); |
| } |
| |
| // Stage6 |
| { |
| const __m128i lo_6_5 = _mm_unpacklo_epi16(stp2_6, stp2_5); |
| const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); |
| const __m128i lo_11_12 = _mm_unpacklo_epi16(stp1_11, stp1_12); |
| |
| tmp1 = _mm_madd_epi16(lo_6_5, stg4_1); |
| tmp3 = _mm_madd_epi16(lo_6_5, stg4_0); |
| tmp0 = _mm_madd_epi16(lo_10_13, stg6_0); |
| tmp2 = _mm_madd_epi16(lo_10_13, stg4_0); |
| tmp4 = _mm_madd_epi16(lo_11_12, stg6_0); |
| tmp6 = _mm_madd_epi16(lo_11_12, stg4_0); |
| |
| tmp1 = _mm_add_epi32(tmp1, rounding); |
| tmp3 = _mm_add_epi32(tmp3, rounding); |
| tmp0 = _mm_add_epi32(tmp0, rounding); |
| tmp2 = _mm_add_epi32(tmp2, rounding); |
| tmp4 = _mm_add_epi32(tmp4, rounding); |
| tmp6 = _mm_add_epi32(tmp6, rounding); |
| |
| tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); |
| tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); |
| tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); |
| tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); |
| tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); |
| tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); |
| |
| stp1_5 = _mm_packs_epi32(tmp1, zero); |
| stp1_6 = _mm_packs_epi32(tmp3, zero); |
| stp2_10 = _mm_packs_epi32(tmp0, zero); |
| stp2_13 = _mm_packs_epi32(tmp2, zero); |
| stp2_11 = _mm_packs_epi32(tmp4, zero); |
| stp2_12 = _mm_packs_epi32(tmp6, zero); |
| |
| stp2_0 = _mm_add_epi16(stp1_0, stp2_7); |
| stp2_1 = _mm_add_epi16(stp1_1, stp1_6); |
| stp2_2 = _mm_add_epi16(stp1_2, stp1_5); |
| stp2_3 = _mm_add_epi16(stp1_3, stp2_4); |
| stp2_4 = _mm_sub_epi16(stp1_3, stp2_4); |
| stp2_5 = _mm_sub_epi16(stp1_2, stp1_5); |
| stp2_6 = _mm_sub_epi16(stp1_1, stp1_6); |
| stp2_7 = _mm_sub_epi16(stp1_0, stp2_7); |
| } |
| |
| // Stage7. Left 8x16 only. |
| l0 = _mm_add_epi16(stp2_0, stp1_15); |
| l1 = _mm_add_epi16(stp2_1, stp1_14); |
| l2 = _mm_add_epi16(stp2_2, stp2_13); |
| l3 = _mm_add_epi16(stp2_3, stp2_12); |
| l4 = _mm_add_epi16(stp2_4, stp2_11); |
| l5 = _mm_add_epi16(stp2_5, stp2_10); |
| l6 = _mm_add_epi16(stp2_6, stp1_9); |
| l7 = _mm_add_epi16(stp2_7, stp1_8); |
| l8 = _mm_sub_epi16(stp2_7, stp1_8); |
| l9 = _mm_sub_epi16(stp2_6, stp1_9); |
| l10 = _mm_sub_epi16(stp2_5, stp2_10); |
| l11 = _mm_sub_epi16(stp2_4, stp2_11); |
| l12 = _mm_sub_epi16(stp2_3, stp2_12); |
| l13 = _mm_sub_epi16(stp2_2, stp2_13); |
| l14 = _mm_sub_epi16(stp2_1, stp1_14); |
| l15 = _mm_sub_epi16(stp2_0, stp1_15); |
| |
| // 2-D idct. We do 2 8x16 blocks. |
| for (i = 0; i < 2; i++) { |
| if (i == 0) |
| TRANSPOSE_4X8(l0, l1, l2, l3, l4, l5, l6, l7, in0, in1, in2, in3, in4, |
| in5, in6, in7); |
| |
| if (i == 1) |
| TRANSPOSE_4X8(l8, l9, l10, l11, l12, l13, l14, l15, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| |
| in8 = in9 = in10 = in11 = in12 = in13 = in14 = in15 = zero; |
| |
| IDCT16x16_1D |
| |
| // Stage7 |
| in0 = _mm_add_epi16(stp2_0, stp1_15); |
| in1 = _mm_add_epi16(stp2_1, stp1_14); |
| in2 = _mm_add_epi16(stp2_2, stp2_13); |
| in3 = _mm_add_epi16(stp2_3, stp2_12); |
| in4 = _mm_add_epi16(stp2_4, stp2_11); |
| in5 = _mm_add_epi16(stp2_5, stp2_10); |
| in6 = _mm_add_epi16(stp2_6, stp1_9); |
| in7 = _mm_add_epi16(stp2_7, stp1_8); |
| in8 = _mm_sub_epi16(stp2_7, stp1_8); |
| in9 = _mm_sub_epi16(stp2_6, stp1_9); |
| in10 = _mm_sub_epi16(stp2_5, stp2_10); |
| in11 = _mm_sub_epi16(stp2_4, stp2_11); |
| in12 = _mm_sub_epi16(stp2_3, stp2_12); |
| in13 = _mm_sub_epi16(stp2_2, stp2_13); |
| in14 = _mm_sub_epi16(stp2_1, stp1_14); |
| in15 = _mm_sub_epi16(stp2_0, stp1_15); |
| |
| // Final rounding and shift |
| in0 = _mm_adds_epi16(in0, final_rounding); |
| in1 = _mm_adds_epi16(in1, final_rounding); |
| in2 = _mm_adds_epi16(in2, final_rounding); |
| in3 = _mm_adds_epi16(in3, final_rounding); |
| in4 = _mm_adds_epi16(in4, final_rounding); |
| in5 = _mm_adds_epi16(in5, final_rounding); |
| in6 = _mm_adds_epi16(in6, final_rounding); |
| in7 = _mm_adds_epi16(in7, final_rounding); |
| in8 = _mm_adds_epi16(in8, final_rounding); |
| in9 = _mm_adds_epi16(in9, final_rounding); |
| in10 = _mm_adds_epi16(in10, final_rounding); |
| in11 = _mm_adds_epi16(in11, final_rounding); |
| in12 = _mm_adds_epi16(in12, final_rounding); |
| in13 = _mm_adds_epi16(in13, final_rounding); |
| in14 = _mm_adds_epi16(in14, final_rounding); |
| in15 = _mm_adds_epi16(in15, final_rounding); |
| |
| in0 = _mm_srai_epi16(in0, 6); |
| in1 = _mm_srai_epi16(in1, 6); |
| in2 = _mm_srai_epi16(in2, 6); |
| in3 = _mm_srai_epi16(in3, 6); |
| in4 = _mm_srai_epi16(in4, 6); |
| in5 = _mm_srai_epi16(in5, 6); |
| in6 = _mm_srai_epi16(in6, 6); |
| in7 = _mm_srai_epi16(in7, 6); |
| in8 = _mm_srai_epi16(in8, 6); |
| in9 = _mm_srai_epi16(in9, 6); |
| in10 = _mm_srai_epi16(in10, 6); |
| in11 = _mm_srai_epi16(in11, 6); |
| in12 = _mm_srai_epi16(in12, 6); |
| in13 = _mm_srai_epi16(in13, 6); |
| in14 = _mm_srai_epi16(in14, 6); |
| in15 = _mm_srai_epi16(in15, 6); |
| |
| // Store results |
| _mm_store_si128((__m128i *)output, in0); |
| _mm_store_si128((__m128i *)(output + half_pitch * 1), in1); |
| _mm_store_si128((__m128i *)(output + half_pitch * 2), in2); |
| _mm_store_si128((__m128i *)(output + half_pitch * 3), in3); |
| _mm_store_si128((__m128i *)(output + half_pitch * 4), in4); |
| _mm_store_si128((__m128i *)(output + half_pitch * 5), in5); |
| _mm_store_si128((__m128i *)(output + half_pitch * 6), in6); |
| _mm_store_si128((__m128i *)(output + half_pitch * 7), in7); |
| _mm_store_si128((__m128i *)(output + half_pitch * 8), in8); |
| _mm_store_si128((__m128i *)(output + half_pitch * 9), in9); |
| _mm_store_si128((__m128i *)(output + half_pitch * 10), in10); |
| _mm_store_si128((__m128i *)(output + half_pitch * 11), in11); |
| _mm_store_si128((__m128i *)(output + half_pitch * 12), in12); |
| _mm_store_si128((__m128i *)(output + half_pitch * 13), in13); |
| _mm_store_si128((__m128i *)(output + half_pitch * 14), in14); |
| _mm_store_si128((__m128i *)(output + half_pitch * 15), in15); |
| output += 8; |
| } |
| } |
| #endif |
