126 lines
4.0 KiB
C
126 lines
4.0 KiB
C
/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <assert.h>
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#include <emmintrin.h>
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#include <xmmintrin.h>
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#include "./vp9_rtcd.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_dsp/vpx_dsp_common.h"
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#include "vpx_dsp/x86/bitdepth_conversion_sse2.h"
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#include "vpx_dsp/x86/quantize_sse2.h"
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void vp9_quantize_fp_sse2(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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const int16_t *round_ptr, const int16_t *quant_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
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const int16_t *dequant_ptr, uint16_t *eob_ptr,
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const int16_t *scan, const int16_t *iscan) {
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const __m128i zero = _mm_setzero_si128();
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__m128i thr;
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int nzflag;
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int index = 16;
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__m128i round, quant, dequant;
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__m128i coeff0, coeff1, coeff0_sign, coeff1_sign;
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__m128i qcoeff0, qcoeff1;
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__m128i eob;
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(void)scan;
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// Setup global values.
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load_fp_values(round_ptr, &round, quant_ptr, &quant, dequant_ptr, &dequant);
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// Do DC and first 15 AC.
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coeff0 = load_tran_low(coeff_ptr);
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coeff1 = load_tran_low(coeff_ptr + 8);
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// Poor man's abs().
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coeff0_sign = _mm_srai_epi16(coeff0, 15);
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coeff1_sign = _mm_srai_epi16(coeff1, 15);
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qcoeff0 = invert_sign_sse2(coeff0, coeff0_sign);
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qcoeff1 = invert_sign_sse2(coeff1, coeff1_sign);
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qcoeff0 = _mm_adds_epi16(qcoeff0, round);
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qcoeff0 = _mm_mulhi_epi16(qcoeff0, quant);
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round = _mm_unpackhi_epi64(round, round);
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quant = _mm_unpackhi_epi64(quant, quant);
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qcoeff1 = _mm_adds_epi16(qcoeff1, round);
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qcoeff1 = _mm_mulhi_epi16(qcoeff1, quant);
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// Reinsert signs.
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qcoeff0 = invert_sign_sse2(qcoeff0, coeff0_sign);
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qcoeff1 = invert_sign_sse2(qcoeff1, coeff1_sign);
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store_tran_low(qcoeff0, qcoeff_ptr);
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store_tran_low(qcoeff1, qcoeff_ptr + 8);
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qcoeff0 = _mm_mullo_epi16(qcoeff0, dequant);
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dequant = _mm_unpackhi_epi64(dequant, dequant);
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qcoeff1 = _mm_mullo_epi16(qcoeff1, dequant);
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store_tran_low(qcoeff0, dqcoeff_ptr);
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store_tran_low(qcoeff1, dqcoeff_ptr + 8);
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eob = scan_for_eob(&qcoeff0, &qcoeff1, iscan, 0, zero);
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thr = _mm_srai_epi16(dequant, 1);
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// AC only loop.
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while (index < n_coeffs) {
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coeff0 = load_tran_low(coeff_ptr + index);
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coeff1 = load_tran_low(coeff_ptr + index + 8);
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// Poor man's abs().
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coeff0_sign = _mm_srai_epi16(coeff0, 15);
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coeff1_sign = _mm_srai_epi16(coeff1, 15);
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qcoeff0 = invert_sign_sse2(coeff0, coeff0_sign);
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qcoeff1 = invert_sign_sse2(coeff1, coeff1_sign);
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nzflag = _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff0, thr)) |
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_mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff1, thr));
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if (nzflag) {
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__m128i eob0;
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qcoeff0 = _mm_adds_epi16(qcoeff0, round);
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qcoeff1 = _mm_adds_epi16(qcoeff1, round);
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qcoeff0 = _mm_mulhi_epi16(qcoeff0, quant);
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qcoeff1 = _mm_mulhi_epi16(qcoeff1, quant);
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// Reinsert signs.
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qcoeff0 = invert_sign_sse2(qcoeff0, coeff0_sign);
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qcoeff1 = invert_sign_sse2(qcoeff1, coeff1_sign);
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store_tran_low(qcoeff0, qcoeff_ptr + index);
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store_tran_low(qcoeff1, qcoeff_ptr + index + 8);
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qcoeff0 = _mm_mullo_epi16(qcoeff0, dequant);
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qcoeff1 = _mm_mullo_epi16(qcoeff1, dequant);
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store_tran_low(qcoeff0, dqcoeff_ptr + index);
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store_tran_low(qcoeff1, dqcoeff_ptr + index + 8);
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eob0 = scan_for_eob(&qcoeff0, &qcoeff1, iscan, index, zero);
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eob = _mm_max_epi16(eob, eob0);
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} else {
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store_zero_tran_low(qcoeff_ptr + index);
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store_zero_tran_low(qcoeff_ptr + index + 8);
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store_zero_tran_low(dqcoeff_ptr + index);
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store_zero_tran_low(dqcoeff_ptr + index + 8);
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}
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index += 16;
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}
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*eob_ptr = accumulate_eob(eob);
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}
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