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/*
* Copyright (c) 2014 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>
#include <xmmintrin.h>
#include "./vp9_rtcd.h"
#include "vpx/vpx_integer.h"
#include "vpx_dsp/vpx_dsp_common.h"
#include "vpx_dsp/x86/bitdepth_conversion_sse2.h"
#include "vpx_dsp/x86/quantize_sse2.h"
#include "vp9/common/vp9_scan.h"
#include "vp9/encoder/vp9_block.h"
void vp9_quantize_fp_sse2(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
const struct macroblock_plane *const mb_plane,
tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
const int16_t *dequant_ptr, uint16_t *eob_ptr,
const struct ScanOrder *const scan_order) {
const __m128i zero = _mm_setzero_si128();
__m128i thr;
int nzflag;
int index = 16;
__m128i round, quant, dequant;
__m128i coeff0, coeff1, coeff0_sign, coeff1_sign;
__m128i qcoeff0, qcoeff1;
__m128i eob;
const int16_t *iscan = scan_order->iscan;
// Setup global values.
load_fp_values(mb_plane, &round, &quant, dequant_ptr, &dequant);
// Do DC and first 15 AC.
coeff0 = load_tran_low(coeff_ptr);
coeff1 = load_tran_low(coeff_ptr + 8);
// Poor man's abs().
coeff0_sign = _mm_srai_epi16(coeff0, 15);
coeff1_sign = _mm_srai_epi16(coeff1, 15);
qcoeff0 = invert_sign_sse2(coeff0, coeff0_sign);
qcoeff1 = invert_sign_sse2(coeff1, coeff1_sign);
qcoeff0 = _mm_adds_epi16(qcoeff0, round);
qcoeff0 = _mm_mulhi_epi16(qcoeff0, quant);
round = _mm_unpackhi_epi64(round, round);
quant = _mm_unpackhi_epi64(quant, quant);
qcoeff1 = _mm_adds_epi16(qcoeff1, round);
qcoeff1 = _mm_mulhi_epi16(qcoeff1, quant);
// Reinsert signs.
qcoeff0 = invert_sign_sse2(qcoeff0, coeff0_sign);
qcoeff1 = invert_sign_sse2(qcoeff1, coeff1_sign);
store_tran_low(qcoeff0, qcoeff_ptr);
store_tran_low(qcoeff1, qcoeff_ptr + 8);
qcoeff0 = _mm_mullo_epi16(qcoeff0, dequant);
dequant = _mm_unpackhi_epi64(dequant, dequant);
qcoeff1 = _mm_mullo_epi16(qcoeff1, dequant);
store_tran_low(qcoeff0, dqcoeff_ptr);
store_tran_low(qcoeff1, dqcoeff_ptr + 8);
eob = scan_for_eob(&qcoeff0, &qcoeff1, iscan, 0, zero);
thr = _mm_srai_epi16(dequant, 1);
// AC only loop.
while (index < n_coeffs) {
coeff0 = load_tran_low(coeff_ptr + index);
coeff1 = load_tran_low(coeff_ptr + index + 8);
// Poor man's abs().
coeff0_sign = _mm_srai_epi16(coeff0, 15);
coeff1_sign = _mm_srai_epi16(coeff1, 15);
qcoeff0 = invert_sign_sse2(coeff0, coeff0_sign);
qcoeff1 = invert_sign_sse2(coeff1, coeff1_sign);
nzflag = _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff0, thr)) |
_mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff1, thr));
if (nzflag) {
__m128i eob0;
qcoeff0 = _mm_adds_epi16(qcoeff0, round);
qcoeff1 = _mm_adds_epi16(qcoeff1, round);
qcoeff0 = _mm_mulhi_epi16(qcoeff0, quant);
qcoeff1 = _mm_mulhi_epi16(qcoeff1, quant);
// Reinsert signs.
qcoeff0 = invert_sign_sse2(qcoeff0, coeff0_sign);
qcoeff1 = invert_sign_sse2(qcoeff1, coeff1_sign);
store_tran_low(qcoeff0, qcoeff_ptr + index);
store_tran_low(qcoeff1, qcoeff_ptr + index + 8);
qcoeff0 = _mm_mullo_epi16(qcoeff0, dequant);
qcoeff1 = _mm_mullo_epi16(qcoeff1, dequant);
store_tran_low(qcoeff0, dqcoeff_ptr + index);
store_tran_low(qcoeff1, dqcoeff_ptr + index + 8);
eob0 = scan_for_eob(&qcoeff0, &qcoeff1, iscan, index, zero);
eob = _mm_max_epi16(eob, eob0);
} else {
store_zero_tran_low(qcoeff_ptr + index);
store_zero_tran_low(qcoeff_ptr + index + 8);
store_zero_tran_low(dqcoeff_ptr + index);
store_zero_tran_low(dqcoeff_ptr + index + 8);
}
index += 16;
}
*eob_ptr = accumulate_eob(eob);
}
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