| /* |
| * 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 "./vpx_dsp_rtcd.h" |
| #include "vpx_dsp/x86/highbd_inv_txfm_sse2.h" |
| #include "vpx_dsp/x86/inv_txfm_sse2.h" |
| #include "vpx_dsp/x86/transpose_sse2.h" |
| #include "vpx_dsp/x86/txfm_common_sse2.h" |
| |
| void vpx_highbd_idct8x8_64_add_sse2(const tran_low_t *input, uint16_t *dest, |
| int stride, int bd) { |
| tran_low_t out[8 * 8]; |
| tran_low_t *outptr = out; |
| int i, j, test; |
| __m128i inptr[8]; |
| __m128i min_input, max_input, temp1, temp2, sign_bits; |
| const __m128i zero = _mm_set1_epi16(0); |
| const __m128i sixteen = _mm_set1_epi16(16); |
| const __m128i max = _mm_set1_epi16(6201); |
| const __m128i min = _mm_set1_epi16(-6201); |
| int optimised_cols = 0; |
| |
| // Load input into __m128i & pack to 16 bits |
| for (i = 0; i < 8; i++) { |
| temp1 = _mm_loadu_si128((const __m128i *)(input + 8 * i)); |
| temp2 = _mm_loadu_si128((const __m128i *)(input + 8 * i + 4)); |
| inptr[i] = _mm_packs_epi32(temp1, temp2); |
| } |
| |
| // Find the min & max for the row transform |
| max_input = _mm_max_epi16(inptr[0], inptr[1]); |
| min_input = _mm_min_epi16(inptr[0], inptr[1]); |
| for (i = 2; i < 8; i++) { |
| max_input = _mm_max_epi16(max_input, inptr[i]); |
| min_input = _mm_min_epi16(min_input, inptr[i]); |
| } |
| max_input = _mm_cmpgt_epi16(max_input, max); |
| min_input = _mm_cmplt_epi16(min_input, min); |
| temp1 = _mm_or_si128(max_input, min_input); |
| test = _mm_movemask_epi8(temp1); |
| |
| if (!test) { |
| // Do the row transform |
| idct8_sse2(inptr); |
| |
| // Find the min & max for the column transform |
| max_input = _mm_max_epi16(inptr[0], inptr[1]); |
| min_input = _mm_min_epi16(inptr[0], inptr[1]); |
| for (i = 2; i < 8; i++) { |
| max_input = _mm_max_epi16(max_input, inptr[i]); |
| min_input = _mm_min_epi16(min_input, inptr[i]); |
| } |
| max_input = _mm_cmpgt_epi16(max_input, max); |
| min_input = _mm_cmplt_epi16(min_input, min); |
| temp1 = _mm_or_si128(max_input, min_input); |
| test = _mm_movemask_epi8(temp1); |
| |
| if (test) { |
| array_transpose_8x8(inptr, inptr); |
| for (i = 0; i < 8; i++) { |
| sign_bits = _mm_cmplt_epi16(inptr[i], zero); |
| temp1 = _mm_unpackhi_epi16(inptr[i], sign_bits); |
| temp2 = _mm_unpacklo_epi16(inptr[i], sign_bits); |
| _mm_storeu_si128((__m128i *)(outptr + 4 * (2 * i + 1)), temp1); |
| _mm_storeu_si128((__m128i *)(outptr + 4 * (2 * i)), temp2); |
| } |
| } else { |
| // Set to use the optimised transform for the column |
| optimised_cols = 1; |
| } |
| } else { |
| // Run the un-optimised row transform |
| for (i = 0; i < 8; ++i) { |
| vpx_highbd_idct8_c(input, outptr, bd); |
| input += 8; |
| outptr += 8; |
| } |
| } |
| |
| if (optimised_cols) { |
| idct8_sse2(inptr); |
| |
| // Final round & shift and Reconstruction and Store |
| { |
| __m128i d[8]; |
| for (i = 0; i < 8; i++) { |
| inptr[i] = _mm_add_epi16(inptr[i], sixteen); |
| d[i] = _mm_loadu_si128((const __m128i *)(dest + stride * i)); |
| inptr[i] = _mm_srai_epi16(inptr[i], 5); |
| d[i] = clamp_high_sse2(_mm_adds_epi16(d[i], inptr[i]), bd); |
| // Store |
| _mm_storeu_si128((__m128i *)(dest + stride * i), d[i]); |
| } |
| } |
| } else { |
| // Run the un-optimised column transform |
| tran_low_t temp_in[8], temp_out[8]; |
| for (i = 0; i < 8; ++i) { |
| for (j = 0; j < 8; ++j) temp_in[j] = out[j * 8 + i]; |
| vpx_highbd_idct8_c(temp_in, temp_out, bd); |
| for (j = 0; j < 8; ++j) { |
| dest[j * stride + i] = highbd_clip_pixel_add( |
| dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd); |
| } |
| } |
| } |
| } |
| |
| void vpx_highbd_idct8x8_12_add_sse2(const tran_low_t *input, uint16_t *dest, |
| int stride, int bd) { |
| tran_low_t out[8 * 8] = { 0 }; |
| tran_low_t *outptr = out; |
| int i, j, test; |
| __m128i inptr[8]; |
| __m128i min_input, max_input, temp1, temp2, sign_bits; |
| const __m128i zero = _mm_set1_epi16(0); |
| const __m128i sixteen = _mm_set1_epi16(16); |
| const __m128i max = _mm_set1_epi16(6201); |
| const __m128i min = _mm_set1_epi16(-6201); |
| int optimised_cols = 0; |
| |
| // Load input into __m128i & pack to 16 bits |
| for (i = 0; i < 8; i++) { |
| temp1 = _mm_loadu_si128((const __m128i *)(input + 8 * i)); |
| temp2 = _mm_loadu_si128((const __m128i *)(input + 8 * i + 4)); |
| inptr[i] = _mm_packs_epi32(temp1, temp2); |
| } |
| |
| // Find the min & max for the row transform |
| // only first 4 row has non-zero coefs |
| max_input = _mm_max_epi16(inptr[0], inptr[1]); |
| min_input = _mm_min_epi16(inptr[0], inptr[1]); |
| for (i = 2; i < 4; i++) { |
| max_input = _mm_max_epi16(max_input, inptr[i]); |
| min_input = _mm_min_epi16(min_input, inptr[i]); |
| } |
| max_input = _mm_cmpgt_epi16(max_input, max); |
| min_input = _mm_cmplt_epi16(min_input, min); |
| temp1 = _mm_or_si128(max_input, min_input); |
| test = _mm_movemask_epi8(temp1); |
| |
| if (!test) { |
| // Do the row transform |
| idct8_sse2(inptr); |
| |
| // Find the min & max for the column transform |
| // N.B. Only first 4 cols contain non-zero coeffs |
| max_input = _mm_max_epi16(inptr[0], inptr[1]); |
| min_input = _mm_min_epi16(inptr[0], inptr[1]); |
| for (i = 2; i < 8; i++) { |
| max_input = _mm_max_epi16(max_input, inptr[i]); |
| min_input = _mm_min_epi16(min_input, inptr[i]); |
| } |
| max_input = _mm_cmpgt_epi16(max_input, max); |
| min_input = _mm_cmplt_epi16(min_input, min); |
| temp1 = _mm_or_si128(max_input, min_input); |
| test = _mm_movemask_epi8(temp1); |
| |
| if (test) { |
| // Use fact only first 4 rows contain non-zero coeffs |
| array_transpose_4X8(inptr, inptr); |
| for (i = 0; i < 4; i++) { |
| sign_bits = _mm_cmplt_epi16(inptr[i], zero); |
| temp1 = _mm_unpackhi_epi16(inptr[i], sign_bits); |
| temp2 = _mm_unpacklo_epi16(inptr[i], sign_bits); |
| _mm_storeu_si128((__m128i *)(outptr + 4 * (2 * i + 1)), temp1); |
| _mm_storeu_si128((__m128i *)(outptr + 4 * (2 * i)), temp2); |
| } |
| } else { |
| // Set to use the optimised transform for the column |
| optimised_cols = 1; |
| } |
| } else { |
| // Run the un-optimised row transform |
| for (i = 0; i < 4; ++i) { |
| vpx_highbd_idct8_c(input, outptr, bd); |
| input += 8; |
| outptr += 8; |
| } |
| } |
| |
| if (optimised_cols) { |
| idct8_sse2(inptr); |
| |
| // Final round & shift and Reconstruction and Store |
| { |
| __m128i d[8]; |
| for (i = 0; i < 8; i++) { |
| inptr[i] = _mm_add_epi16(inptr[i], sixteen); |
| d[i] = _mm_loadu_si128((const __m128i *)(dest + stride * i)); |
| inptr[i] = _mm_srai_epi16(inptr[i], 5); |
| d[i] = clamp_high_sse2(_mm_adds_epi16(d[i], inptr[i]), bd); |
| // Store |
| _mm_storeu_si128((__m128i *)(dest + stride * i), d[i]); |
| } |
| } |
| } else { |
| // Run the un-optimised column transform |
| tran_low_t temp_in[8], temp_out[8]; |
| for (i = 0; i < 8; ++i) { |
| for (j = 0; j < 8; ++j) temp_in[j] = out[j * 8 + i]; |
| vpx_highbd_idct8_c(temp_in, temp_out, bd); |
| for (j = 0; j < 8; ++j) { |
| dest[j * stride + i] = highbd_clip_pixel_add( |
| dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd); |
| } |
| } |
| } |
| } |
| |
| void vpx_highbd_idct8x8_1_add_sse2(const tran_low_t *input, uint16_t *dest, |
| int stride, int bd) { |
| highbd_idct_1_add_kernel(input, dest, stride, bd, 8); |
| } |