d621de7e8d
This commit clears all the vp9_ prefix use case in vpx_dsp. It gets the vp9 folder ready to branch out vp10. Change-Id: I2906eec179ee792b4af8c9b4161313653050e931
338 lines
12 KiB
C
338 lines
12 KiB
C
/*
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* Copyright (c) 2015 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 "vpx_dsp/quantize.h"
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#include "vpx_mem/vpx_mem.h"
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void vpx_quantize_dc(const tran_low_t *coeff_ptr,
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int n_coeffs, int skip_block,
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const int16_t *round_ptr, const int16_t quant,
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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 int rc = 0;
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const int coeff = coeff_ptr[rc];
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const int coeff_sign = (coeff >> 31);
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const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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int tmp, eob = -1;
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
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tmp = (tmp * quant) >> 16;
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qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
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dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr;
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if (tmp)
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eob = 0;
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}
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*eob_ptr = eob + 1;
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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void vpx_highbd_quantize_dc(const tran_low_t *coeff_ptr,
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int n_coeffs, int skip_block,
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const int16_t *round_ptr, const int16_t quant,
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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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int eob = -1;
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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const int coeff = coeff_ptr[0];
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const int coeff_sign = (coeff >> 31);
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const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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const int64_t tmp = abs_coeff + round_ptr[0];
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const uint32_t abs_qcoeff = (uint32_t)((tmp * quant) >> 16);
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qcoeff_ptr[0] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
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dqcoeff_ptr[0] = qcoeff_ptr[0] * dequant_ptr;
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if (abs_qcoeff)
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eob = 0;
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}
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*eob_ptr = eob + 1;
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}
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#endif
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void vpx_quantize_dc_32x32(const tran_low_t *coeff_ptr, int skip_block,
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const int16_t *round_ptr, const int16_t quant,
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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 int n_coeffs = 1024;
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const int rc = 0;
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const int coeff = coeff_ptr[rc];
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const int coeff_sign = (coeff >> 31);
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const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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int tmp, eob = -1;
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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tmp = clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1),
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INT16_MIN, INT16_MAX);
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tmp = (tmp * quant) >> 15;
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qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
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dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr / 2;
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if (tmp)
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eob = 0;
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}
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*eob_ptr = eob + 1;
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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void vpx_highbd_quantize_dc_32x32(const tran_low_t *coeff_ptr,
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int skip_block,
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const int16_t *round_ptr,
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const int16_t quant,
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tran_low_t *qcoeff_ptr,
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tran_low_t *dqcoeff_ptr,
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const int16_t dequant_ptr,
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uint16_t *eob_ptr) {
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const int n_coeffs = 1024;
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int eob = -1;
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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const int coeff = coeff_ptr[0];
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const int coeff_sign = (coeff >> 31);
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const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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const int64_t tmp = abs_coeff + ROUND_POWER_OF_TWO(round_ptr[0], 1);
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const uint32_t abs_qcoeff = (uint32_t)((tmp * quant) >> 15);
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qcoeff_ptr[0] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
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dqcoeff_ptr[0] = qcoeff_ptr[0] * dequant_ptr / 2;
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if (abs_qcoeff)
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eob = 0;
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}
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*eob_ptr = eob + 1;
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}
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#endif
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void vpx_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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int skip_block,
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const int16_t *zbin_ptr, const int16_t *round_ptr,
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const int16_t *quant_ptr, const int16_t *quant_shift_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
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const int16_t *dequant_ptr,
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uint16_t *eob_ptr,
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const int16_t *scan, const int16_t *iscan) {
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int i, non_zero_count = (int)n_coeffs, eob = -1;
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const int zbins[2] = {zbin_ptr[0], zbin_ptr[1]};
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const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1};
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(void)iscan;
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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// Pre-scan pass
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for (i = (int)n_coeffs - 1; i >= 0; i--) {
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const int rc = scan[i];
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const int coeff = coeff_ptr[rc];
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if (coeff < zbins[rc != 0] && coeff > nzbins[rc != 0])
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non_zero_count--;
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else
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break;
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}
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// Quantization pass: All coefficients with index >= zero_flag are
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// skippable. Note: zero_flag can be zero.
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for (i = 0; i < non_zero_count; i++) {
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const int rc = scan[i];
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const int coeff = coeff_ptr[rc];
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const int coeff_sign = (coeff >> 31);
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const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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if (abs_coeff >= zbins[rc != 0]) {
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int tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
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tmp = ((((tmp * quant_ptr[rc != 0]) >> 16) + tmp) *
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quant_shift_ptr[rc != 0]) >> 16; // quantization
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qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
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dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
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if (tmp)
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eob = i;
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}
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}
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}
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*eob_ptr = eob + 1;
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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void vpx_highbd_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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int skip_block, const int16_t *zbin_ptr,
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const int16_t *round_ptr, const int16_t *quant_ptr,
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const int16_t *quant_shift_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
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const int16_t *dequant_ptr,
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uint16_t *eob_ptr, const int16_t *scan,
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const int16_t *iscan) {
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int i, non_zero_count = (int)n_coeffs, eob = -1;
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const int zbins[2] = {zbin_ptr[0], zbin_ptr[1]};
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const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1};
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(void)iscan;
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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// Pre-scan pass
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for (i = (int)n_coeffs - 1; i >= 0; i--) {
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const int rc = scan[i];
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const int coeff = coeff_ptr[rc];
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if (coeff < zbins[rc != 0] && coeff > nzbins[rc != 0])
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non_zero_count--;
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else
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break;
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}
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// Quantization pass: All coefficients with index >= zero_flag are
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// skippable. Note: zero_flag can be zero.
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for (i = 0; i < non_zero_count; i++) {
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const int rc = scan[i];
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const int coeff = coeff_ptr[rc];
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const int coeff_sign = (coeff >> 31);
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const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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if (abs_coeff >= zbins[rc != 0]) {
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const int64_t tmp1 = abs_coeff + round_ptr[rc != 0];
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const int64_t tmp2 = ((tmp1 * quant_ptr[rc != 0]) >> 16) + tmp1;
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const uint32_t abs_qcoeff =
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(uint32_t)((tmp2 * quant_shift_ptr[rc != 0]) >> 16);
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qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
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dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
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if (abs_qcoeff)
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eob = i;
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}
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}
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}
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*eob_ptr = eob + 1;
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}
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#endif
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void vpx_quantize_b_32x32_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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int skip_block,
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const int16_t *zbin_ptr, const int16_t *round_ptr,
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const int16_t *quant_ptr,
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const int16_t *quant_shift_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
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const int16_t *dequant_ptr,
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uint16_t *eob_ptr,
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const int16_t *scan, const int16_t *iscan) {
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const int zbins[2] = {ROUND_POWER_OF_TWO(zbin_ptr[0], 1),
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ROUND_POWER_OF_TWO(zbin_ptr[1], 1)};
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const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1};
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int idx = 0;
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int idx_arr[1024];
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int i, eob = -1;
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(void)iscan;
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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// Pre-scan pass
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for (i = 0; i < n_coeffs; i++) {
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const int rc = scan[i];
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const int coeff = coeff_ptr[rc];
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// If the coefficient is out of the base ZBIN range, keep it for
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// quantization.
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if (coeff >= zbins[rc != 0] || coeff <= nzbins[rc != 0])
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idx_arr[idx++] = i;
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}
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// Quantization pass: only process the coefficients selected in
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// pre-scan pass. Note: idx can be zero.
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for (i = 0; i < idx; i++) {
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const int rc = scan[idx_arr[i]];
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const int coeff = coeff_ptr[rc];
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const int coeff_sign = (coeff >> 31);
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int tmp;
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int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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abs_coeff += ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1);
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abs_coeff = clamp(abs_coeff, INT16_MIN, INT16_MAX);
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tmp = ((((abs_coeff * quant_ptr[rc != 0]) >> 16) + abs_coeff) *
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quant_shift_ptr[rc != 0]) >> 15;
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qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
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dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2;
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if (tmp)
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eob = idx_arr[i];
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}
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}
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*eob_ptr = eob + 1;
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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void vpx_highbd_quantize_b_32x32_c(const tran_low_t *coeff_ptr,
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intptr_t n_coeffs, int skip_block,
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const int16_t *zbin_ptr,
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const int16_t *round_ptr,
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const int16_t *quant_ptr,
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const int16_t *quant_shift_ptr,
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tran_low_t *qcoeff_ptr,
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tran_low_t *dqcoeff_ptr,
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const int16_t *dequant_ptr,
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uint16_t *eob_ptr,
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const int16_t *scan, const int16_t *iscan) {
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const int zbins[2] = {ROUND_POWER_OF_TWO(zbin_ptr[0], 1),
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ROUND_POWER_OF_TWO(zbin_ptr[1], 1)};
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const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1};
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int idx = 0;
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int idx_arr[1024];
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int i, eob = -1;
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(void)iscan;
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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// Pre-scan pass
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for (i = 0; i < n_coeffs; i++) {
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const int rc = scan[i];
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const int coeff = coeff_ptr[rc];
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// If the coefficient is out of the base ZBIN range, keep it for
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// quantization.
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if (coeff >= zbins[rc != 0] || coeff <= nzbins[rc != 0])
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idx_arr[idx++] = i;
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}
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// Quantization pass: only process the coefficients selected in
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// pre-scan pass. Note: idx can be zero.
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for (i = 0; i < idx; i++) {
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const int rc = scan[idx_arr[i]];
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const int coeff = coeff_ptr[rc];
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const int coeff_sign = (coeff >> 31);
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const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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const int64_t tmp1 = abs_coeff
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+ ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1);
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const int64_t tmp2 = ((tmp1 * quant_ptr[rc != 0]) >> 16) + tmp1;
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const uint32_t abs_qcoeff =
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(uint32_t)((tmp2 * quant_shift_ptr[rc != 0]) >> 15);
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qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
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dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2;
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if (abs_qcoeff)
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eob = idx_arr[i];
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}
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}
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*eob_ptr = eob + 1;
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}
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#endif
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