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Diffstat (limited to 'media/libvpx/libvpx/vpx_dsp/x86/quantize_sse2.h')
| -rw-r--r-- | media/libvpx/libvpx/vpx_dsp/x86/quantize_sse2.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/x86/quantize_sse2.h b/media/libvpx/libvpx/vpx_dsp/x86/quantize_sse2.h new file mode 100644 index 0000000000..82c755a0cf --- /dev/null +++ b/media/libvpx/libvpx/vpx_dsp/x86/quantize_sse2.h @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2017 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_QUANTIZE_SSE2_H_ +#define VPX_VPX_DSP_X86_QUANTIZE_SSE2_H_ + +#include <emmintrin.h> + +#include "./vpx_config.h" +#include "vpx/vpx_integer.h" +#include "vp9/encoder/vp9_block.h" + +static INLINE void load_b_values(const struct macroblock_plane *const mb_plane, + __m128i *zbin, __m128i *round, __m128i *quant, + const int16_t *dequant_ptr, __m128i *dequant, + __m128i *shift) { + *zbin = _mm_load_si128((const __m128i *)mb_plane->zbin); + *round = _mm_load_si128((const __m128i *)mb_plane->round); + *quant = _mm_load_si128((const __m128i *)mb_plane->quant); + *zbin = _mm_sub_epi16(*zbin, _mm_set1_epi16(1)); + *dequant = _mm_load_si128((const __m128i *)dequant_ptr); + *shift = _mm_load_si128((const __m128i *)mb_plane->quant_shift); +} + +static INLINE void load_b_values32x32( + const struct macroblock_plane *const mb_plane, __m128i *zbin, + __m128i *round, __m128i *quant, const int16_t *dequant_ptr, + __m128i *dequant, __m128i *shift) { + const __m128i one = _mm_set1_epi16(1); + // The 32x32 halves zbin and round. + *zbin = _mm_load_si128((const __m128i *)mb_plane->zbin); + // Shift with rounding. + *zbin = _mm_add_epi16(*zbin, one); + *zbin = _mm_srli_epi16(*zbin, 1); + // x86 has no "greater *or equal*" comparison. Subtract 1 from zbin so + // it is a strict "greater" comparison. + *zbin = _mm_sub_epi16(*zbin, one); + + *round = _mm_load_si128((const __m128i *)mb_plane->round); + *round = _mm_add_epi16(*round, one); + *round = _mm_srli_epi16(*round, 1); + + *quant = _mm_load_si128((const __m128i *)mb_plane->quant); + *dequant = _mm_load_si128((const __m128i *)dequant_ptr); + *shift = _mm_load_si128((const __m128i *)mb_plane->quant_shift); + // I suspect this is not technically OK because quant_shift can be up + // to 1 << 16 and shifting up again will outrange that, but the test is not + // comprehensive enough to catch that and "it's been that way forever" + *shift = _mm_slli_epi16(*shift, 1); +} + +static INLINE void load_fp_values(const struct macroblock_plane *mb_plane, + __m128i *round, __m128i *quant, + const int16_t *dequant_ptr, + __m128i *dequant) { + *round = _mm_load_si128((const __m128i *)mb_plane->round_fp); + *quant = _mm_load_si128((const __m128i *)mb_plane->quant_fp); + *dequant = _mm_load_si128((const __m128i *)dequant_ptr); +} + +// With ssse3 and later abs() and sign() are preferred. +static INLINE __m128i invert_sign_sse2(__m128i a, __m128i sign) { + a = _mm_xor_si128(a, sign); + return _mm_sub_epi16(a, sign); +} + +static INLINE void calculate_qcoeff(__m128i *coeff, const __m128i round, + const __m128i quant, const __m128i shift) { + __m128i tmp, qcoeff; + qcoeff = _mm_adds_epi16(*coeff, round); + tmp = _mm_mulhi_epi16(qcoeff, quant); + qcoeff = _mm_add_epi16(tmp, qcoeff); + *coeff = _mm_mulhi_epi16(qcoeff, shift); +} + +static INLINE void calculate_dqcoeff_and_store(__m128i qcoeff, __m128i dequant, + tran_low_t *dqcoeff) { +#if CONFIG_VP9_HIGHBITDEPTH + const __m128i low = _mm_mullo_epi16(qcoeff, dequant); + const __m128i high = _mm_mulhi_epi16(qcoeff, dequant); + + const __m128i dqcoeff32_0 = _mm_unpacklo_epi16(low, high); + const __m128i dqcoeff32_1 = _mm_unpackhi_epi16(low, high); + + _mm_store_si128((__m128i *)(dqcoeff), dqcoeff32_0); + _mm_store_si128((__m128i *)(dqcoeff + 4), dqcoeff32_1); +#else + const __m128i dqcoeff16 = _mm_mullo_epi16(qcoeff, dequant); + + _mm_store_si128((__m128i *)(dqcoeff), dqcoeff16); +#endif // CONFIG_VP9_HIGHBITDEPTH +} + +// Scan 16 values for eob reference in scan. +static INLINE __m128i scan_for_eob(__m128i *coeff0, __m128i *coeff1, + const int16_t *scan, const int index, + const __m128i zero) { + const __m128i zero_coeff0 = _mm_cmpeq_epi16(*coeff0, zero); + const __m128i zero_coeff1 = _mm_cmpeq_epi16(*coeff1, zero); + __m128i scan0 = _mm_load_si128((const __m128i *)(scan + index)); + __m128i scan1 = _mm_load_si128((const __m128i *)(scan + index + 8)); + __m128i eob0, eob1; + eob0 = _mm_andnot_si128(zero_coeff0, scan0); + eob1 = _mm_andnot_si128(zero_coeff1, scan1); + return _mm_max_epi16(eob0, eob1); +} + +static INLINE int16_t accumulate_eob(__m128i eob) { + __m128i eob_shuffled; + eob_shuffled = _mm_shuffle_epi32(eob, 0xe); + eob = _mm_max_epi16(eob, eob_shuffled); + eob_shuffled = _mm_shufflelo_epi16(eob, 0xe); + eob = _mm_max_epi16(eob, eob_shuffled); + eob_shuffled = _mm_shufflelo_epi16(eob, 0x1); + eob = _mm_max_epi16(eob, eob_shuffled); + return _mm_extract_epi16(eob, 1); +} + +#endif // VPX_VPX_DSP_X86_QUANTIZE_SSE2_H_ |