| /* |
| * Copyright (c) 2016, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #ifndef AOM_AOM_DSP_X86_FWD_TXFM_SSE2_H_ |
| #define AOM_AOM_DSP_X86_FWD_TXFM_SSE2_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| static INLINE __m128i k_madd_epi32(__m128i a, __m128i b) { |
| __m128i buf0, buf1; |
| buf0 = _mm_mul_epu32(a, b); |
| a = _mm_srli_epi64(a, 32); |
| b = _mm_srli_epi64(b, 32); |
| buf1 = _mm_mul_epu32(a, b); |
| return _mm_add_epi64(buf0, buf1); |
| } |
| |
| static INLINE __m128i k_packs_epi64(__m128i a, __m128i b) { |
| __m128i buf0 = _mm_shuffle_epi32(a, _MM_SHUFFLE(0, 0, 2, 0)); |
| __m128i buf1 = _mm_shuffle_epi32(b, _MM_SHUFFLE(0, 0, 2, 0)); |
| return _mm_unpacklo_epi64(buf0, buf1); |
| } |
| |
| static INLINE int check_epi16_overflow_x2(const __m128i *preg0, |
| const __m128i *preg1) { |
| const __m128i max_overflow = _mm_set1_epi16(0x7fff); |
| const __m128i min_overflow = _mm_set1_epi16(0x8000); |
| __m128i cmp0 = _mm_or_si128(_mm_cmpeq_epi16(*preg0, max_overflow), |
| _mm_cmpeq_epi16(*preg0, min_overflow)); |
| __m128i cmp1 = _mm_or_si128(_mm_cmpeq_epi16(*preg1, max_overflow), |
| _mm_cmpeq_epi16(*preg1, min_overflow)); |
| cmp0 = _mm_or_si128(cmp0, cmp1); |
| return _mm_movemask_epi8(cmp0); |
| } |
| |
| static INLINE int check_epi16_overflow_x4(const __m128i *preg0, |
| const __m128i *preg1, |
| const __m128i *preg2, |
| const __m128i *preg3) { |
| const __m128i max_overflow = _mm_set1_epi16(0x7fff); |
| const __m128i min_overflow = _mm_set1_epi16(0x8000); |
| __m128i cmp0 = _mm_or_si128(_mm_cmpeq_epi16(*preg0, max_overflow), |
| _mm_cmpeq_epi16(*preg0, min_overflow)); |
| __m128i cmp1 = _mm_or_si128(_mm_cmpeq_epi16(*preg1, max_overflow), |
| _mm_cmpeq_epi16(*preg1, min_overflow)); |
| __m128i cmp2 = _mm_or_si128(_mm_cmpeq_epi16(*preg2, max_overflow), |
| _mm_cmpeq_epi16(*preg2, min_overflow)); |
| __m128i cmp3 = _mm_or_si128(_mm_cmpeq_epi16(*preg3, max_overflow), |
| _mm_cmpeq_epi16(*preg3, min_overflow)); |
| cmp0 = _mm_or_si128(_mm_or_si128(cmp0, cmp1), _mm_or_si128(cmp2, cmp3)); |
| return _mm_movemask_epi8(cmp0); |
| } |
| |
| static INLINE int check_epi16_overflow_x8( |
| const __m128i *preg0, const __m128i *preg1, const __m128i *preg2, |
| const __m128i *preg3, const __m128i *preg4, const __m128i *preg5, |
| const __m128i *preg6, const __m128i *preg7) { |
| int res0, res1; |
| res0 = check_epi16_overflow_x4(preg0, preg1, preg2, preg3); |
| res1 = check_epi16_overflow_x4(preg4, preg5, preg6, preg7); |
| return res0 + res1; |
| } |
| |
| static INLINE int check_epi16_overflow_x12( |
| const __m128i *preg0, const __m128i *preg1, const __m128i *preg2, |
| const __m128i *preg3, const __m128i *preg4, const __m128i *preg5, |
| const __m128i *preg6, const __m128i *preg7, const __m128i *preg8, |
| const __m128i *preg9, const __m128i *preg10, const __m128i *preg11) { |
| int res0, res1; |
| res0 = check_epi16_overflow_x4(preg0, preg1, preg2, preg3); |
| res1 = check_epi16_overflow_x4(preg4, preg5, preg6, preg7); |
| if (!res0) res0 = check_epi16_overflow_x4(preg8, preg9, preg10, preg11); |
| return res0 + res1; |
| } |
| |
| static INLINE int check_epi16_overflow_x16( |
| const __m128i *preg0, const __m128i *preg1, const __m128i *preg2, |
| const __m128i *preg3, const __m128i *preg4, const __m128i *preg5, |
| const __m128i *preg6, const __m128i *preg7, const __m128i *preg8, |
| const __m128i *preg9, const __m128i *preg10, const __m128i *preg11, |
| const __m128i *preg12, const __m128i *preg13, const __m128i *preg14, |
| const __m128i *preg15) { |
| int res0, res1; |
| res0 = check_epi16_overflow_x4(preg0, preg1, preg2, preg3); |
| res1 = check_epi16_overflow_x4(preg4, preg5, preg6, preg7); |
| if (!res0) { |
| res0 = check_epi16_overflow_x4(preg8, preg9, preg10, preg11); |
| if (!res1) res1 = check_epi16_overflow_x4(preg12, preg13, preg14, preg15); |
| } |
| return res0 + res1; |
| } |
| |
| static INLINE int check_epi16_overflow_x32( |
| const __m128i *preg0, const __m128i *preg1, const __m128i *preg2, |
| const __m128i *preg3, const __m128i *preg4, const __m128i *preg5, |
| const __m128i *preg6, const __m128i *preg7, const __m128i *preg8, |
| const __m128i *preg9, const __m128i *preg10, const __m128i *preg11, |
| const __m128i *preg12, const __m128i *preg13, const __m128i *preg14, |
| const __m128i *preg15, const __m128i *preg16, const __m128i *preg17, |
| const __m128i *preg18, const __m128i *preg19, const __m128i *preg20, |
| const __m128i *preg21, const __m128i *preg22, const __m128i *preg23, |
| const __m128i *preg24, const __m128i *preg25, const __m128i *preg26, |
| const __m128i *preg27, const __m128i *preg28, const __m128i *preg29, |
| const __m128i *preg30, const __m128i *preg31) { |
| int res0, res1; |
| res0 = check_epi16_overflow_x4(preg0, preg1, preg2, preg3); |
| res1 = check_epi16_overflow_x4(preg4, preg5, preg6, preg7); |
| if (!res0) { |
| res0 = check_epi16_overflow_x4(preg8, preg9, preg10, preg11); |
| if (!res1) { |
| res1 = check_epi16_overflow_x4(preg12, preg13, preg14, preg15); |
| if (!res0) { |
| res0 = check_epi16_overflow_x4(preg16, preg17, preg18, preg19); |
| if (!res1) { |
| res1 = check_epi16_overflow_x4(preg20, preg21, preg22, preg23); |
| if (!res0) { |
| res0 = check_epi16_overflow_x4(preg24, preg25, preg26, preg27); |
| if (!res1) |
| res1 = check_epi16_overflow_x4(preg28, preg29, preg30, preg31); |
| } |
| } |
| } |
| } |
| } |
| return res0 + res1; |
| } |
| |
| static INLINE void store_output(const __m128i *poutput, tran_low_t *dst_ptr) { |
| if (sizeof(tran_low_t) == 4) { |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i sign_bits = _mm_cmplt_epi16(*poutput, zero); |
| __m128i out0 = _mm_unpacklo_epi16(*poutput, sign_bits); |
| __m128i out1 = _mm_unpackhi_epi16(*poutput, sign_bits); |
| _mm_store_si128((__m128i *)(dst_ptr), out0); |
| _mm_store_si128((__m128i *)(dst_ptr + 4), out1); |
| } else { |
| _mm_store_si128((__m128i *)(dst_ptr), *poutput); |
| } |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AOM_DSP_X86_FWD_TXFM_SSE2_H_ |