| /* |
| * 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. |
| */ |
| |
| #include <assert.h> |
| #include <string.h> |
| |
| #include "./aom_dsp_rtcd.h" |
| #include "./av1_rtcd.h" |
| #include "av1/common/blockd.h" |
| #include "av1/common/convolve.h" |
| #include "av1/common/filter.h" |
| #include "av1/common/onyxc_int.h" |
| #include "av1/common/resize.h" |
| #include "aom_dsp/aom_dsp_common.h" |
| #include "aom_ports/mem.h" |
| |
| #define MAX_BLOCK_WIDTH (MAX_SB_SIZE) |
| #define MAX_BLOCK_HEIGHT (MAX_SB_SIZE) |
| #define MAX_STEP (32) |
| |
| void av1_convolve_horiz_rs_c(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const int16_t *x_filters, int x0_qn, |
| int x_step_qn) { |
| src -= UPSCALE_NORMATIVE_TAPS / 2 - 1; |
| for (int y = 0; y < h; ++y) { |
| int x_qn = x0_qn; |
| for (int x = 0; x < w; ++x) { |
| const uint8_t *const src_x = &src[x_qn >> RS_SCALE_SUBPEL_BITS]; |
| const int x_filter_idx = |
| (x_qn & RS_SCALE_SUBPEL_MASK) >> RS_SCALE_EXTRA_BITS; |
| assert(x_filter_idx <= RS_SUBPEL_MASK); |
| const int16_t *const x_filter = |
| &x_filters[x_filter_idx * UPSCALE_NORMATIVE_TAPS]; |
| int sum = 0; |
| for (int k = 0; k < UPSCALE_NORMATIVE_TAPS; ++k) |
| sum += src_x[k] * x_filter[k]; |
| dst[x] = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); |
| x_qn += x_step_qn; |
| } |
| src += src_stride; |
| dst += dst_stride; |
| } |
| } |
| |
| void av1_highbd_convolve_horiz_rs_c(const uint16_t *src, int src_stride, |
| uint16_t *dst, int dst_stride, int w, int h, |
| const int16_t *x_filters, int x0_qn, |
| int x_step_qn, int bd) { |
| src -= UPSCALE_NORMATIVE_TAPS / 2 - 1; |
| for (int y = 0; y < h; ++y) { |
| int x_qn = x0_qn; |
| for (int x = 0; x < w; ++x) { |
| const uint16_t *const src_x = &src[x_qn >> RS_SCALE_SUBPEL_BITS]; |
| const int x_filter_idx = |
| (x_qn & RS_SCALE_SUBPEL_MASK) >> RS_SCALE_EXTRA_BITS; |
| assert(x_filter_idx <= RS_SUBPEL_MASK); |
| const int16_t *const x_filter = |
| &x_filters[x_filter_idx * UPSCALE_NORMATIVE_TAPS]; |
| int sum = 0; |
| for (int k = 0; k < UPSCALE_NORMATIVE_TAPS; ++k) |
| sum += src_x[k] * x_filter[k]; |
| dst[x] = clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd); |
| x_qn += x_step_qn; |
| } |
| src += src_stride; |
| dst += dst_stride; |
| } |
| } |
| |
| void av1_convolve_2d_sr_c(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| int16_t im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]; |
| int im_h = h + filter_params_y->taps - 1; |
| int im_stride = w; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int bd = 8; |
| const int bits = |
| FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1; |
| |
| // horizontal filter |
| const uint8_t *src_horiz = src - fo_vert * src_stride; |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_x, subpel_x_q4 & SUBPEL_MASK); |
| for (int y = 0; y < im_h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t sum = (1 << (bd + FILTER_BITS - 1)); |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| sum += x_filter[k] * src_horiz[y * src_stride + x - fo_horiz + k]; |
| } |
| assert(0 <= sum && sum < (1 << (bd + FILTER_BITS + 1))); |
| im_block[y * im_stride + x] = |
| (int16_t)ROUND_POWER_OF_TWO(sum, conv_params->round_0); |
| } |
| } |
| |
| // vertical filter |
| int16_t *src_vert = im_block + fo_vert * im_stride; |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_y, subpel_y_q4 & SUBPEL_MASK); |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t sum = 1 << offset_bits; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| sum += y_filter[k] * src_vert[(y - fo_vert + k) * im_stride + x]; |
| } |
| assert(0 <= sum && sum < (1 << (offset_bits + 2))); |
| int16_t res = ROUND_POWER_OF_TWO(sum, conv_params->round_1) - |
| ((1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1))); |
| dst[y * dst_stride + x] = clip_pixel(ROUND_POWER_OF_TWO(res, bits)); |
| } |
| } |
| } |
| |
| void av1_convolve_y_sr_c(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| (void)filter_params_x; |
| (void)subpel_x_q4; |
| (void)conv_params; |
| |
| assert(conv_params->round_0 <= FILTER_BITS); |
| assert(((conv_params->round_0 + conv_params->round_1) <= (FILTER_BITS + 1)) || |
| ((conv_params->round_0 + conv_params->round_1) == (2 * FILTER_BITS))); |
| |
| // vertical filter |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_y, subpel_y_q4 & SUBPEL_MASK); |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t res = 0; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| res += y_filter[k] * src[(y - fo_vert + k) * src_stride + x]; |
| } |
| dst[y * dst_stride + x] = |
| clip_pixel(ROUND_POWER_OF_TWO(res, FILTER_BITS)); |
| } |
| } |
| } |
| |
| void av1_convolve_x_sr_c(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int bits = FILTER_BITS - conv_params->round_0; |
| (void)filter_params_y; |
| (void)subpel_y_q4; |
| (void)conv_params; |
| |
| assert(bits >= 0); |
| assert((FILTER_BITS - conv_params->round_1) >= 0 || |
| ((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS)); |
| |
| // horizontal filter |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_x, subpel_x_q4 & SUBPEL_MASK); |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t res = 0; |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| res += x_filter[k] * src[y * src_stride + x - fo_horiz + k]; |
| } |
| res = ROUND_POWER_OF_TWO(res, conv_params->round_0); |
| dst[y * dst_stride + x] = clip_pixel(ROUND_POWER_OF_TWO(res, bits)); |
| } |
| } |
| } |
| |
| void av1_convolve_2d_copy_sr_c(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| (void)filter_params_x; |
| (void)filter_params_y; |
| (void)subpel_x_q4; |
| (void)subpel_y_q4; |
| (void)conv_params; |
| |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| dst[y * dst_stride + x] = src[y * src_stride + x]; |
| } |
| } |
| } |
| |
| void av1_jnt_convolve_2d_c(const uint8_t *src, int src_stride, uint8_t *dst8, |
| int dst8_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| int16_t im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]; |
| int im_h = h + filter_params_y->taps - 1; |
| int im_stride = w; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int bd = 8; |
| const int round_bits = |
| 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; |
| |
| // horizontal filter |
| const uint8_t *src_horiz = src - fo_vert * src_stride; |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_x, subpel_x_q4 & SUBPEL_MASK); |
| for (int y = 0; y < im_h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t sum = (1 << (bd + FILTER_BITS - 1)); |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| sum += x_filter[k] * src_horiz[y * src_stride + x - fo_horiz + k]; |
| } |
| assert(0 <= sum && sum < (1 << (bd + FILTER_BITS + 1))); |
| im_block[y * im_stride + x] = |
| (int16_t)ROUND_POWER_OF_TWO(sum, conv_params->round_0); |
| } |
| } |
| |
| // vertical filter |
| int16_t *src_vert = im_block + fo_vert * im_stride; |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_y, subpel_y_q4 & SUBPEL_MASK); |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t sum = 1 << offset_bits; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| sum += y_filter[k] * src_vert[(y - fo_vert + k) * im_stride + x]; |
| } |
| assert(0 <= sum && sum < (1 << (offset_bits + 2))); |
| CONV_BUF_TYPE res = ROUND_POWER_OF_TWO(sum, conv_params->round_1); |
| if (conv_params->do_average) { |
| int32_t tmp = dst[y * dst_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| tmp -= (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| dst8[y * dst8_stride + x] = |
| clip_pixel(ROUND_POWER_OF_TWO(tmp, round_bits)); |
| } else { |
| dst[y * dst_stride + x] = res; |
| } |
| } |
| } |
| } |
| |
| void av1_jnt_convolve_y_c(const uint8_t *src, int src_stride, uint8_t *dst8, |
| int dst8_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int bits = FILTER_BITS - conv_params->round_0; |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int round_offset = (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| const int round_bits = |
| 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; |
| (void)filter_params_x; |
| (void)subpel_x_q4; |
| |
| // vertical filter |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_y, subpel_y_q4 & SUBPEL_MASK); |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t res = 0; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| res += y_filter[k] * src[(y - fo_vert + k) * src_stride + x]; |
| } |
| res *= (1 << bits); |
| res = ROUND_POWER_OF_TWO(res, conv_params->round_1) + round_offset; |
| |
| if (conv_params->do_average) { |
| int32_t tmp = dst[y * dst_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| tmp -= round_offset; |
| dst8[y * dst8_stride + x] = |
| clip_pixel(ROUND_POWER_OF_TWO(tmp, round_bits)); |
| } else { |
| dst[y * dst_stride + x] = res; |
| } |
| } |
| } |
| } |
| |
| void av1_jnt_convolve_x_c(const uint8_t *src, int src_stride, uint8_t *dst8, |
| int dst8_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int bits = FILTER_BITS - conv_params->round_1; |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int round_offset = (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| const int round_bits = |
| 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; |
| (void)filter_params_y; |
| (void)subpel_y_q4; |
| |
| // horizontal filter |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_x, subpel_x_q4 & SUBPEL_MASK); |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t res = 0; |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| res += x_filter[k] * src[y * src_stride + x - fo_horiz + k]; |
| } |
| res = (1 << bits) * ROUND_POWER_OF_TWO(res, conv_params->round_0); |
| res += round_offset; |
| |
| if (conv_params->do_average) { |
| int32_t tmp = dst[y * dst_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| tmp -= round_offset; |
| dst8[y * dst8_stride + x] = |
| clip_pixel(ROUND_POWER_OF_TWO(tmp, round_bits)); |
| } else { |
| dst[y * dst_stride + x] = res; |
| } |
| } |
| } |
| } |
| |
| void av1_jnt_convolve_2d_copy_c(const uint8_t *src, int src_stride, |
| uint8_t *dst8, int dst8_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params) { |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| const int bits = |
| FILTER_BITS * 2 - conv_params->round_1 - conv_params->round_0; |
| const int bd = 8; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int round_offset = (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| (void)filter_params_x; |
| (void)filter_params_y; |
| (void)subpel_x_q4; |
| (void)subpel_y_q4; |
| |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| CONV_BUF_TYPE res = src[y * src_stride + x] << bits; |
| res += round_offset; |
| |
| if (conv_params->do_average) { |
| int32_t tmp = dst[y * dst_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| tmp -= round_offset; |
| dst8[y * dst8_stride + x] = clip_pixel(ROUND_POWER_OF_TWO(tmp, bits)); |
| } else { |
| dst[y * dst_stride + x] = res; |
| } |
| } |
| } |
| } |
| |
| void av1_convolve_2d_scale_c(const uint8_t *src, int src_stride, uint8_t *dst8, |
| int dst8_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_qn, const int x_step_qn, |
| const int subpel_y_qn, const int y_step_qn, |
| ConvolveParams *conv_params) { |
| int16_t im_block[(2 * MAX_SB_SIZE + MAX_FILTER_TAP) * MAX_SB_SIZE]; |
| int im_h = (((h - 1) * y_step_qn + subpel_y_qn) >> SCALE_SUBPEL_BITS) + |
| filter_params_y->taps; |
| CONV_BUF_TYPE *dst16 = conv_params->dst; |
| const int dst16_stride = conv_params->dst_stride; |
| const int bits = |
| FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1; |
| assert(bits >= 0); |
| int im_stride = w; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int bd = 8; |
| |
| // horizontal filter |
| const uint8_t *src_horiz = src - fo_vert * src_stride; |
| for (int y = 0; y < im_h; ++y) { |
| int x_qn = subpel_x_qn; |
| for (int x = 0; x < w; ++x, x_qn += x_step_qn) { |
| const uint8_t *const src_x = &src_horiz[(x_qn >> SCALE_SUBPEL_BITS)]; |
| const int x_filter_idx = (x_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS; |
| assert(x_filter_idx < SUBPEL_SHIFTS); |
| const int16_t *x_filter = |
| av1_get_interp_filter_subpel_kernel(*filter_params_x, x_filter_idx); |
| int32_t sum = (1 << (bd + FILTER_BITS - 1)); |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| sum += x_filter[k] * src_x[k - fo_horiz]; |
| } |
| assert(0 <= sum && sum < (1 << (bd + FILTER_BITS + 1))); |
| im_block[y * im_stride + x] = |
| (int16_t)ROUND_POWER_OF_TWO(sum, conv_params->round_0); |
| } |
| src_horiz += src_stride; |
| } |
| |
| // vertical filter |
| int16_t *src_vert = im_block + fo_vert * im_stride; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| for (int x = 0; x < w; ++x) { |
| int y_qn = subpel_y_qn; |
| for (int y = 0; y < h; ++y, y_qn += y_step_qn) { |
| const int16_t *src_y = &src_vert[(y_qn >> SCALE_SUBPEL_BITS) * im_stride]; |
| const int y_filter_idx = (y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS; |
| assert(y_filter_idx < SUBPEL_SHIFTS); |
| const int16_t *y_filter = |
| av1_get_interp_filter_subpel_kernel(*filter_params_y, y_filter_idx); |
| int32_t sum = 1 << offset_bits; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| sum += y_filter[k] * src_y[(k - fo_vert) * im_stride]; |
| } |
| assert(0 <= sum && sum < (1 << (offset_bits + 2))); |
| CONV_BUF_TYPE res = ROUND_POWER_OF_TWO(sum, conv_params->round_1); |
| if (conv_params->is_compound) { |
| if (conv_params->do_average) { |
| int32_t tmp = dst16[y * dst16_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| /* Subtract round offset and convolve round */ |
| tmp = tmp - ((1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1))); |
| dst8[y * dst8_stride + x] = clip_pixel(ROUND_POWER_OF_TWO(tmp, bits)); |
| } else { |
| dst16[y * dst16_stride + x] = res; |
| } |
| } else { |
| /* Subtract round offset and convolve round */ |
| int32_t tmp = res - ((1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1))); |
| dst8[y * dst8_stride + x] = clip_pixel(ROUND_POWER_OF_TWO(tmp, bits)); |
| } |
| } |
| src_vert++; |
| } |
| } |
| |
| static void convolve_2d_scale_wrapper( |
| const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int w, |
| int h, InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, const int subpel_x_qn, |
| const int x_step_qn, const int subpel_y_qn, const int y_step_qn, |
| ConvolveParams *conv_params) { |
| if (conv_params->is_compound) { |
| assert(conv_params->dst != NULL); |
| } |
| av1_convolve_2d_scale(src, src_stride, dst, dst_stride, w, h, filter_params_x, |
| filter_params_y, subpel_x_qn, x_step_qn, subpel_y_qn, |
| y_step_qn, conv_params); |
| } |
| |
| void av1_convolve_2d_facade(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| InterpFilters interp_filters, const int subpel_x_q4, |
| int x_step_q4, const int subpel_y_q4, int y_step_q4, |
| int scaled, ConvolveParams *conv_params, |
| const struct scale_factors *sf) { |
| (void)x_step_q4; |
| (void)y_step_q4; |
| (void)dst; |
| (void)dst_stride; |
| |
| InterpFilterParams filter_params_x, filter_params_y; |
| av1_get_convolve_filter_params(interp_filters, &filter_params_x, |
| &filter_params_y, w, h); |
| |
| if (scaled) |
| convolve_2d_scale_wrapper(src, src_stride, dst, dst_stride, w, h, |
| &filter_params_x, &filter_params_y, subpel_x_q4, |
| x_step_q4, subpel_y_q4, y_step_q4, conv_params); |
| else |
| sf->convolve[subpel_x_q4 != 0][subpel_y_q4 != 0][conv_params->is_compound]( |
| src, src_stride, dst, dst_stride, w, h, &filter_params_x, |
| &filter_params_y, subpel_x_q4, subpel_y_q4, conv_params); |
| } |
| |
| void av1_highbd_convolve_2d_copy_sr_c( |
| const uint16_t *src, int src_stride, uint16_t *dst, int dst_stride, int w, |
| int h, InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, const int subpel_x_q4, |
| const int subpel_y_q4, ConvolveParams *conv_params, int bd) { |
| (void)filter_params_x; |
| (void)filter_params_y; |
| (void)subpel_x_q4; |
| (void)subpel_y_q4; |
| (void)conv_params; |
| (void)bd; |
| |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| dst[y * dst_stride + x] = src[y * src_stride + x]; |
| } |
| } |
| } |
| |
| void av1_highbd_convolve_x_sr_c(const uint16_t *src, int src_stride, |
| uint16_t *dst, int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params, int bd) { |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int bits = FILTER_BITS - conv_params->round_0; |
| (void)filter_params_y; |
| (void)subpel_y_q4; |
| |
| assert(bits >= 0); |
| assert((FILTER_BITS - conv_params->round_1) >= 0 || |
| ((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS)); |
| |
| // horizontal filter |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_x, subpel_x_q4 & SUBPEL_MASK); |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t res = 0; |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| res += x_filter[k] * src[y * src_stride + x - fo_horiz + k]; |
| } |
| res = ROUND_POWER_OF_TWO(res, conv_params->round_0); |
| dst[y * dst_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(res, bits), bd); |
| } |
| } |
| } |
| |
| void av1_highbd_convolve_y_sr_c(const uint16_t *src, int src_stride, |
| uint16_t *dst, int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params, int bd) { |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| (void)filter_params_x; |
| (void)subpel_x_q4; |
| (void)conv_params; |
| |
| assert(conv_params->round_0 <= FILTER_BITS); |
| assert(((conv_params->round_0 + conv_params->round_1) <= (FILTER_BITS + 1)) || |
| ((conv_params->round_0 + conv_params->round_1) == (2 * FILTER_BITS))); |
| // vertical filter |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_y, subpel_y_q4 & SUBPEL_MASK); |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t res = 0; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| res += y_filter[k] * src[(y - fo_vert + k) * src_stride + x]; |
| } |
| dst[y * dst_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(res, FILTER_BITS), bd); |
| } |
| } |
| } |
| |
| void av1_highbd_convolve_2d_sr_c(const uint16_t *src, int src_stride, |
| uint16_t *dst, int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params, int bd) { |
| int16_t im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]; |
| int im_h = h + filter_params_y->taps - 1; |
| int im_stride = w; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int bits = |
| FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1; |
| assert(bits >= 0); |
| |
| // horizontal filter |
| const uint16_t *src_horiz = src - fo_vert * src_stride; |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_x, subpel_x_q4 & SUBPEL_MASK); |
| for (int y = 0; y < im_h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t sum = (1 << (bd + FILTER_BITS - 1)); |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| sum += x_filter[k] * src_horiz[y * src_stride + x - fo_horiz + k]; |
| } |
| assert(0 <= sum && sum < (1 << (bd + FILTER_BITS + 1))); |
| im_block[y * im_stride + x] = |
| ROUND_POWER_OF_TWO(sum, conv_params->round_0); |
| } |
| } |
| |
| // vertical filter |
| int16_t *src_vert = im_block + fo_vert * im_stride; |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_y, subpel_y_q4 & SUBPEL_MASK); |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t sum = 1 << offset_bits; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| sum += y_filter[k] * src_vert[(y - fo_vert + k) * im_stride + x]; |
| } |
| assert(0 <= sum && sum < (1 << (offset_bits + 2))); |
| int32_t res = ROUND_POWER_OF_TWO(sum, conv_params->round_1) - |
| ((1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1))); |
| dst[y * dst_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(res, bits), bd); |
| } |
| } |
| } |
| |
| void av1_highbd_jnt_convolve_2d_c(const uint16_t *src, int src_stride, |
| uint16_t *dst16, int dst16_stride, int w, |
| int h, InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params, int bd) { |
| int x, y, k; |
| int16_t im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]; |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| int im_h = h + filter_params_y->taps - 1; |
| int im_stride = w; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int round_bits = |
| 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; |
| assert(round_bits >= 0); |
| |
| // horizontal filter |
| const uint16_t *src_horiz = src - fo_vert * src_stride; |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_x, subpel_x_q4 & SUBPEL_MASK); |
| for (y = 0; y < im_h; ++y) { |
| for (x = 0; x < w; ++x) { |
| int32_t sum = (1 << (bd + FILTER_BITS - 1)); |
| for (k = 0; k < filter_params_x->taps; ++k) { |
| sum += x_filter[k] * src_horiz[y * src_stride + x - fo_horiz + k]; |
| } |
| assert(0 <= sum && sum < (1 << (bd + FILTER_BITS + 1))); |
| (void)bd; |
| im_block[y * im_stride + x] = |
| (int16_t)ROUND_POWER_OF_TWO(sum, conv_params->round_0); |
| } |
| } |
| |
| // vertical filter |
| int16_t *src_vert = im_block + fo_vert * im_stride; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_y, subpel_y_q4 & SUBPEL_MASK); |
| for (y = 0; y < h; ++y) { |
| for (x = 0; x < w; ++x) { |
| int32_t sum = 1 << offset_bits; |
| for (k = 0; k < filter_params_y->taps; ++k) { |
| sum += y_filter[k] * src_vert[(y - fo_vert + k) * im_stride + x]; |
| } |
| assert(0 <= sum && sum < (1 << (offset_bits + 2))); |
| CONV_BUF_TYPE res = ROUND_POWER_OF_TWO(sum, conv_params->round_1); |
| if (conv_params->do_average) { |
| int32_t tmp = dst[y * dst_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| tmp -= (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| dst16[y * dst16_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(tmp, round_bits), bd); |
| } else { |
| dst[y * dst_stride + x] = res; |
| } |
| } |
| } |
| } |
| |
| void av1_highbd_jnt_convolve_x_c(const uint16_t *src, int src_stride, |
| uint16_t *dst16, int dst16_stride, int w, |
| int h, InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params, int bd) { |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| const int bits = FILTER_BITS - conv_params->round_1; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int round_offset = (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| const int round_bits = |
| 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; |
| assert(round_bits >= 0); |
| (void)filter_params_y; |
| (void)subpel_y_q4; |
| assert(bits >= 0); |
| // horizontal filter |
| const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_x, subpel_x_q4 & SUBPEL_MASK); |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t res = 0; |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| res += x_filter[k] * src[y * src_stride + x - fo_horiz + k]; |
| } |
| res = (1 << bits) * ROUND_POWER_OF_TWO(res, conv_params->round_0); |
| res += round_offset; |
| |
| if (conv_params->do_average) { |
| int32_t tmp = dst[y * dst_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| tmp -= round_offset; |
| dst16[y * dst16_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(tmp, round_bits), bd); |
| } else { |
| dst[y * dst_stride + x] = res; |
| } |
| } |
| } |
| } |
| |
| void av1_highbd_jnt_convolve_y_c(const uint16_t *src, int src_stride, |
| uint16_t *dst16, int dst16_stride, int w, |
| int h, InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_q4, const int subpel_y_q4, |
| ConvolveParams *conv_params, int bd) { |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int bits = FILTER_BITS - conv_params->round_0; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int round_offset = (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| const int round_bits = |
| 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; |
| assert(round_bits >= 0); |
| (void)filter_params_x; |
| (void)subpel_x_q4; |
| assert(bits >= 0); |
| // vertical filter |
| const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( |
| *filter_params_y, subpel_y_q4 & SUBPEL_MASK); |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| int32_t res = 0; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| res += y_filter[k] * src[(y - fo_vert + k) * src_stride + x]; |
| } |
| res *= (1 << bits); |
| res = ROUND_POWER_OF_TWO(res, conv_params->round_1) + round_offset; |
| |
| if (conv_params->do_average) { |
| int32_t tmp = dst[y * dst_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| tmp -= round_offset; |
| dst16[y * dst16_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(tmp, round_bits), bd); |
| } else { |
| dst[y * dst_stride + x] = res; |
| } |
| } |
| } |
| } |
| |
| void av1_highbd_jnt_convolve_2d_copy_c( |
| const uint16_t *src, int src_stride, uint16_t *dst16, int dst16_stride, |
| int w, int h, InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, const int subpel_x_q4, |
| const int subpel_y_q4, ConvolveParams *conv_params, int bd) { |
| CONV_BUF_TYPE *dst = conv_params->dst; |
| int dst_stride = conv_params->dst_stride; |
| const int bits = |
| FILTER_BITS * 2 - conv_params->round_1 - conv_params->round_0; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| const int round_offset = (1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1)); |
| assert(bits >= 0); |
| (void)filter_params_x; |
| (void)filter_params_y; |
| (void)subpel_x_q4; |
| (void)subpel_y_q4; |
| |
| for (int y = 0; y < h; ++y) { |
| for (int x = 0; x < w; ++x) { |
| CONV_BUF_TYPE res = src[y * src_stride + x] << bits; |
| res += round_offset; |
| if (conv_params->do_average) { |
| int32_t tmp = dst[y * dst_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| tmp -= round_offset; |
| dst16[y * dst16_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(tmp, bits), bd); |
| } else { |
| dst[y * dst_stride + x] = res; |
| } |
| } |
| } |
| } |
| |
| void av1_highbd_convolve_2d_scale_c(const uint16_t *src, int src_stride, |
| uint16_t *dst, int dst_stride, int w, int h, |
| InterpFilterParams *filter_params_x, |
| InterpFilterParams *filter_params_y, |
| const int subpel_x_qn, const int x_step_qn, |
| const int subpel_y_qn, const int y_step_qn, |
| ConvolveParams *conv_params, int bd) { |
| int16_t im_block[(2 * MAX_SB_SIZE + MAX_FILTER_TAP) * MAX_SB_SIZE]; |
| int im_h = (((h - 1) * y_step_qn + subpel_y_qn) >> SCALE_SUBPEL_BITS) + |
| filter_params_y->taps; |
| int im_stride = w; |
| const int fo_vert = filter_params_y->taps / 2 - 1; |
| const int fo_horiz = filter_params_x->taps / 2 - 1; |
| CONV_BUF_TYPE *dst16 = conv_params->dst; |
| const int dst16_stride = conv_params->dst_stride; |
| const int bits = |
| FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1; |
| assert(bits >= 0); |
| // horizontal filter |
| const uint16_t *src_horiz = src - fo_vert * src_stride; |
| for (int y = 0; y < im_h; ++y) { |
| int x_qn = subpel_x_qn; |
| for (int x = 0; x < w; ++x, x_qn += x_step_qn) { |
| const uint16_t *const src_x = &src_horiz[(x_qn >> SCALE_SUBPEL_BITS)]; |
| const int x_filter_idx = (x_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS; |
| assert(x_filter_idx < SUBPEL_SHIFTS); |
| const int16_t *x_filter = |
| av1_get_interp_filter_subpel_kernel(*filter_params_x, x_filter_idx); |
| int32_t sum = (1 << (bd + FILTER_BITS - 1)); |
| for (int k = 0; k < filter_params_x->taps; ++k) { |
| sum += x_filter[k] * src_x[k - fo_horiz]; |
| } |
| assert(0 <= sum && sum < (1 << (bd + FILTER_BITS + 1))); |
| im_block[y * im_stride + x] = |
| (int16_t)ROUND_POWER_OF_TWO(sum, conv_params->round_0); |
| } |
| src_horiz += src_stride; |
| } |
| |
| // vertical filter |
| int16_t *src_vert = im_block + fo_vert * im_stride; |
| const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; |
| for (int x = 0; x < w; ++x) { |
| int y_qn = subpel_y_qn; |
| for (int y = 0; y < h; ++y, y_qn += y_step_qn) { |
| const int16_t *src_y = &src_vert[(y_qn >> SCALE_SUBPEL_BITS) * im_stride]; |
| const int y_filter_idx = (y_qn & SCALE_SUBPEL_MASK) >> SCALE_EXTRA_BITS; |
| assert(y_filter_idx < SUBPEL_SHIFTS); |
| const int16_t *y_filter = |
| av1_get_interp_filter_subpel_kernel(*filter_params_y, y_filter_idx); |
| int32_t sum = 1 << offset_bits; |
| for (int k = 0; k < filter_params_y->taps; ++k) { |
| sum += y_filter[k] * src_y[(k - fo_vert) * im_stride]; |
| } |
| assert(0 <= sum && sum < (1 << (offset_bits + 2))); |
| CONV_BUF_TYPE res = ROUND_POWER_OF_TWO(sum, conv_params->round_1); |
| if (conv_params->is_compound) { |
| if (conv_params->do_average) { |
| int32_t tmp = dst16[y * dst16_stride + x]; |
| if (conv_params->use_jnt_comp_avg) { |
| tmp = tmp * conv_params->fwd_offset + res * conv_params->bck_offset; |
| tmp = tmp >> DIST_PRECISION_BITS; |
| } else { |
| tmp += res; |
| tmp = tmp >> 1; |
| } |
| /* Subtract round offset and convolve round */ |
| tmp = tmp - ((1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1))); |
| dst[y * dst_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(tmp, bits), bd); |
| } else { |
| dst16[y * dst16_stride + x] = res; |
| } |
| } else { |
| /* Subtract round offset and convolve round */ |
| int32_t tmp = res - ((1 << (offset_bits - conv_params->round_1)) + |
| (1 << (offset_bits - conv_params->round_1 - 1))); |
| dst[y * dst_stride + x] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(tmp, bits), bd); |
| } |
| } |
| src_vert++; |
| } |
| } |
| |
| void av1_highbd_convolve_2d_facade(const uint8_t *src8, int src_stride, |
| uint8_t *dst8, int dst_stride, int w, int h, |
| InterpFilters interp_filters, |
| const int subpel_x_q4, int x_step_q4, |
| const int subpel_y_q4, int y_step_q4, |
| int scaled, ConvolveParams *conv_params, |
| const struct scale_factors *sf, int bd) { |
| (void)x_step_q4; |
| (void)y_step_q4; |
| (void)dst_stride; |
| |
| const uint16_t *src = CONVERT_TO_SHORTPTR(src8); |
| InterpFilterParams filter_params_x, filter_params_y; |
| av1_get_convolve_filter_params(interp_filters, &filter_params_x, |
| &filter_params_y, w, h); |
| |
| if (scaled) { |
| uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); |
| if (conv_params->is_compound) { |
| assert(conv_params->dst != NULL); |
| } |
| av1_highbd_convolve_2d_scale(src, src_stride, dst, dst_stride, w, h, |
| &filter_params_x, &filter_params_y, |
| subpel_x_q4, x_step_q4, subpel_y_q4, y_step_q4, |
| conv_params, bd); |
| } else { |
| uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); |
| |
| sf->highbd_convolve[subpel_x_q4 != 0][subpel_y_q4 != |
| 0][conv_params->is_compound]( |
| src, src_stride, dst, dst_stride, w, h, &filter_params_x, |
| &filter_params_y, subpel_x_q4, subpel_y_q4, conv_params, bd); |
| } |
| } |
| |
| // Note: Fixed size intermediate buffers, place limits on parameters |
| // of some functions. 2d filtering proceeds in 2 steps: |
| // (1) Interpolate horizontally into an intermediate buffer, temp. |
| // (2) Interpolate temp vertically to derive the sub-pixel result. |
| // Deriving the maximum number of rows in the temp buffer (135): |
| // --Smallest scaling factor is x1/2 ==> y_step_q4 = 32 (Normative). |
| // --Largest block size is 128x128 pixels. |
| // --128 rows in the downscaled frame span a distance of (128 - 1) * 32 in the |
| // original frame (in 1/16th pixel units). |
| // --Must round-up because block may be located at sub-pixel position. |
| // --Require an additional SUBPEL_TAPS rows for the 8-tap filter tails. |
| // --((128 - 1) * 32 + 15) >> 4 + 8 = 263. |
| #define WIENER_MAX_EXT_SIZE 263 |
| |
| static INLINE int horz_scalar_product(const uint8_t *a, const int16_t *b) { |
| int sum = 0; |
| for (int k = 0; k < SUBPEL_TAPS; ++k) sum += a[k] * b[k]; |
| return sum; |
| } |
| |
| static INLINE int highbd_horz_scalar_product(const uint16_t *a, |
| const int16_t *b) { |
| int sum = 0; |
| for (int k = 0; k < SUBPEL_TAPS; ++k) sum += a[k] * b[k]; |
| return sum; |
| } |
| |
| static INLINE int highbd_vert_scalar_product(const uint16_t *a, |
| ptrdiff_t a_stride, |
| const int16_t *b) { |
| int sum = 0; |
| for (int k = 0; k < SUBPEL_TAPS; ++k) sum += a[k * a_stride] * b[k]; |
| return sum; |
| } |
| |
| static const InterpKernel *get_filter_base(const int16_t *filter) { |
| // NOTE: This assumes that the filter table is 256-byte aligned. |
| // TODO(agrange) Modify to make independent of table alignment. |
| return (const InterpKernel *)(((intptr_t)filter) & ~((intptr_t)0xFF)); |
| } |
| |
| static int get_filter_offset(const int16_t *f, const InterpKernel *base) { |
| return (int)((const InterpKernel *)(intptr_t)f - base); |
| } |
| |
| static void convolve_add_src_horiz_hip(const uint8_t *src, ptrdiff_t src_stride, |
| uint16_t *dst, ptrdiff_t dst_stride, |
| const InterpKernel *x_filters, int x0_q4, |
| int x_step_q4, int w, int h, |
| int round0_bits) { |
| const int bd = 8; |
| src -= SUBPEL_TAPS / 2 - 1; |
| for (int y = 0; y < h; ++y) { |
| int x_q4 = x0_q4; |
| for (int x = 0; x < w; ++x) { |
| const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; |
| const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK]; |
| const int rounding = ((int)src_x[SUBPEL_TAPS / 2 - 1] << FILTER_BITS) + |
| (1 << (bd + FILTER_BITS - 1)); |
| const int sum = horz_scalar_product(src_x, x_filter) + rounding; |
| dst[x] = (uint16_t)clamp(ROUND_POWER_OF_TWO(sum, round0_bits), 0, |
| WIENER_CLAMP_LIMIT(round0_bits, bd) - 1); |
| x_q4 += x_step_q4; |
| } |
| src += src_stride; |
| dst += dst_stride; |
| } |
| } |
| |
| static void convolve_add_src_vert_hip(const uint16_t *src, ptrdiff_t src_stride, |
| uint8_t *dst, ptrdiff_t dst_stride, |
| const InterpKernel *y_filters, int y0_q4, |
| int y_step_q4, int w, int h, |
| int round1_bits) { |
| const int bd = 8; |
| src -= src_stride * (SUBPEL_TAPS / 2 - 1); |
| |
| for (int x = 0; x < w; ++x) { |
| int y_q4 = y0_q4; |
| for (int y = 0; y < h; ++y) { |
| const uint16_t *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; |
| const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK]; |
| const int rounding = |
| ((int)src_y[(SUBPEL_TAPS / 2 - 1) * src_stride] << FILTER_BITS) - |
| (1 << (bd + round1_bits - 1)); |
| const int sum = |
| highbd_vert_scalar_product(src_y, src_stride, y_filter) + rounding; |
| dst[y * dst_stride] = clip_pixel(ROUND_POWER_OF_TWO(sum, round1_bits)); |
| y_q4 += y_step_q4; |
| } |
| ++src; |
| ++dst; |
| } |
| } |
| |
| void av1_wiener_convolve_add_src_c(const uint8_t *src, ptrdiff_t src_stride, |
| uint8_t *dst, ptrdiff_t dst_stride, |
| const int16_t *filter_x, int x_step_q4, |
| const int16_t *filter_y, int y_step_q4, |
| int w, int h, |
| const ConvolveParams *conv_params) { |
| const InterpKernel *const filters_x = get_filter_base(filter_x); |
| const int x0_q4 = get_filter_offset(filter_x, filters_x); |
| |
| const InterpKernel *const filters_y = get_filter_base(filter_y); |
| const int y0_q4 = get_filter_offset(filter_y, filters_y); |
| |
| uint16_t temp[WIENER_MAX_EXT_SIZE * MAX_SB_SIZE]; |
| const int intermediate_height = |
| (((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS; |
| |
| assert(w <= MAX_SB_SIZE); |
| assert(h <= MAX_SB_SIZE); |
| assert(y_step_q4 <= 32); |
| assert(x_step_q4 <= 32); |
| |
| convolve_add_src_horiz_hip(src - src_stride * (SUBPEL_TAPS / 2 - 1), |
| src_stride, temp, MAX_SB_SIZE, filters_x, x0_q4, |
| x_step_q4, w, intermediate_height, |
| conv_params->round_0); |
| convolve_add_src_vert_hip(temp + MAX_SB_SIZE * (SUBPEL_TAPS / 2 - 1), |
| MAX_SB_SIZE, dst, dst_stride, filters_y, y0_q4, |
| y_step_q4, w, h, conv_params->round_1); |
| } |
| |
| static void highbd_convolve_add_src_horiz_hip( |
| const uint8_t *src8, ptrdiff_t src_stride, uint16_t *dst, |
| ptrdiff_t dst_stride, const InterpKernel *x_filters, int x0_q4, |
| int x_step_q4, int w, int h, int round0_bits, int bd) { |
| const int extraprec_clamp_limit = WIENER_CLAMP_LIMIT(round0_bits, bd); |
| uint16_t *src = CONVERT_TO_SHORTPTR(src8); |
| src -= SUBPEL_TAPS / 2 - 1; |
| for (int y = 0; y < h; ++y) { |
| int x_q4 = x0_q4; |
| for (int x = 0; x < w; ++x) { |
| const uint16_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; |
| const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK]; |
| const int rounding = ((int)src_x[SUBPEL_TAPS / 2 - 1] << FILTER_BITS) + |
| (1 << (bd + FILTER_BITS - 1)); |
| const int sum = highbd_horz_scalar_product(src_x, x_filter) + rounding; |
| dst[x] = (uint16_t)clamp(ROUND_POWER_OF_TWO(sum, round0_bits), 0, |
| extraprec_clamp_limit - 1); |
| x_q4 += x_step_q4; |
| } |
| src += src_stride; |
| dst += dst_stride; |
| } |
| } |
| |
| static void highbd_convolve_add_src_vert_hip( |
| const uint16_t *src, ptrdiff_t src_stride, uint8_t *dst8, |
| ptrdiff_t dst_stride, const InterpKernel *y_filters, int y0_q4, |
| int y_step_q4, int w, int h, int round1_bits, int bd) { |
| uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); |
| src -= src_stride * (SUBPEL_TAPS / 2 - 1); |
| for (int x = 0; x < w; ++x) { |
| int y_q4 = y0_q4; |
| for (int y = 0; y < h; ++y) { |
| const uint16_t *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; |
| const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK]; |
| const int rounding = |
| ((int)src_y[(SUBPEL_TAPS / 2 - 1) * src_stride] << FILTER_BITS) - |
| (1 << (bd + round1_bits - 1)); |
| const int sum = |
| highbd_vert_scalar_product(src_y, src_stride, y_filter) + rounding; |
| dst[y * dst_stride] = |
| clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, round1_bits), bd); |
| y_q4 += y_step_q4; |
| } |
| ++src; |
| ++dst; |
| } |
| } |
| |
| void av1_highbd_wiener_convolve_add_src_c( |
| const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, |
| ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, |
| const int16_t *filter_y, int y_step_q4, int w, int h, |
| const ConvolveParams *conv_params, int bd) { |
| const InterpKernel *const filters_x = get_filter_base(filter_x); |
| const int x0_q4 = get_filter_offset(filter_x, filters_x); |
| |
| const InterpKernel *const filters_y = get_filter_base(filter_y); |
| const int y0_q4 = get_filter_offset(filter_y, filters_y); |
| |
| uint16_t temp[WIENER_MAX_EXT_SIZE * MAX_SB_SIZE]; |
| const int intermediate_height = |
| (((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS; |
| |
| assert(w <= MAX_SB_SIZE); |
| assert(h <= MAX_SB_SIZE); |
| assert(y_step_q4 <= 32); |
| assert(x_step_q4 <= 32); |
| assert(bd + FILTER_BITS - conv_params->round_0 + 2 <= 16); |
| |
| highbd_convolve_add_src_horiz_hip(src - src_stride * (SUBPEL_TAPS / 2 - 1), |
| src_stride, temp, MAX_SB_SIZE, filters_x, |
| x0_q4, x_step_q4, w, intermediate_height, |
| conv_params->round_0, bd); |
| highbd_convolve_add_src_vert_hip( |
| temp + MAX_SB_SIZE * (SUBPEL_TAPS / 2 - 1), MAX_SB_SIZE, dst, dst_stride, |
| filters_y, y0_q4, y_step_q4, w, h, conv_params->round_1, bd); |
| } |
