diff options
Diffstat (limited to 'third_party/aom/av1/common/convolve.c')
| -rw-r--r-- | third_party/aom/av1/common/convolve.c | 1295 |
1 files changed, 0 insertions, 1295 deletions
diff --git a/third_party/aom/av1/common/convolve.c b/third_party/aom/av1/common/convolve.c deleted file mode 100644 index 1f11126fc..000000000 --- a/third_party/aom/av1/common/convolve.c +++ /dev/null @@ -1,1295 +0,0 @@ -/* - * 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 "config/aom_dsp_rtcd.h" -#include "config/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" - -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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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) { - memcpy(dst + y * dst_stride, src + y * src_stride, w * sizeof(src[0])); - } -} - -void av1_jnt_convolve_2d_c(const uint8_t *src, int src_stride, uint8_t *dst8, - int dst8_stride, int w, int h, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, const InterpFilterParams *filter_params_x, - const 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); -} - -// TODO(huisu@google.com): bilinear filtering only needs 2 taps in general. So -// we may create optimized code to do 2-tap filtering for all bilinear filtering -// usages, not just IntraBC. -static void convolve_2d_for_intrabc(const uint8_t *src, int src_stride, - uint8_t *dst, int dst_stride, int w, int h, - int subpel_x_q4, int subpel_y_q4, - ConvolveParams *conv_params) { - const InterpFilterParams *filter_params_x = - subpel_x_q4 ? &av1_intrabc_filter_params : NULL; - const InterpFilterParams *filter_params_y = - subpel_y_q4 ? &av1_intrabc_filter_params : NULL; - if (subpel_x_q4 != 0 && subpel_y_q4 != 0) { - av1_convolve_2d_sr_c(src, src_stride, dst, dst_stride, w, h, - filter_params_x, filter_params_y, 0, 0, conv_params); - } else if (subpel_x_q4 != 0) { - av1_convolve_x_sr_c(src, src_stride, dst, dst_stride, w, h, filter_params_x, - filter_params_y, 0, 0, conv_params); - } else { - av1_convolve_y_sr_c(src, src_stride, dst, dst_stride, w, h, filter_params_x, - filter_params_y, 0, 0, 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, int is_intrabc) { - assert(IMPLIES(is_intrabc, !scaled)); - (void)x_step_q4; - (void)y_step_q4; - (void)dst; - (void)dst_stride; - - if (is_intrabc && (subpel_x_q4 != 0 || subpel_y_q4 != 0)) { - convolve_2d_for_intrabc(src, src_stride, dst, dst_stride, w, h, subpel_x_q4, - subpel_y_q4, conv_params); - return; - } - - InterpFilter filter_x = 0; - InterpFilter filter_y = 0; - const int need_filter_params_x = (subpel_x_q4 != 0) | scaled; - const int need_filter_params_y = (subpel_y_q4 != 0) | scaled; - if (need_filter_params_x) - filter_x = av1_extract_interp_filter(interp_filters, 1); - if (need_filter_params_y) - filter_y = av1_extract_interp_filter(interp_filters, 0); - const InterpFilterParams *filter_params_x = - need_filter_params_x - ? av1_get_interp_filter_params_with_block_size(filter_x, w) - : NULL; - const InterpFilterParams *filter_params_y = - need_filter_params_y - ? av1_get_interp_filter_params_with_block_size(filter_y, h) - : NULL; - - 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, const InterpFilterParams *filter_params_x, - const 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) { - memcpy(dst + y * dst_stride, src + y * src_stride, w * sizeof(src[0])); - } -} - -void av1_highbd_convolve_x_sr_c(const uint16_t *src, int src_stride, - uint16_t *dst, int dst_stride, int w, int h, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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, const InterpFilterParams *filter_params_x, - const 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, - const InterpFilterParams *filter_params_x, - const 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++; - } -} - -static void highbd_convolve_2d_for_intrabc(const uint16_t *src, int src_stride, - uint16_t *dst, int dst_stride, int w, - int h, int subpel_x_q4, - int subpel_y_q4, - ConvolveParams *conv_params, - int bd) { - const InterpFilterParams *filter_params_x = - subpel_x_q4 ? &av1_intrabc_filter_params : NULL; - const InterpFilterParams *filter_params_y = - subpel_y_q4 ? &av1_intrabc_filter_params : NULL; - if (subpel_x_q4 != 0 && subpel_y_q4 != 0) { - av1_highbd_convolve_2d_sr_c(src, src_stride, dst, dst_stride, w, h, - filter_params_x, filter_params_y, 0, 0, - conv_params, bd); - } else if (subpel_x_q4 != 0) { - av1_highbd_convolve_x_sr_c(src, src_stride, dst, dst_stride, w, h, - filter_params_x, filter_params_y, 0, 0, - conv_params, bd); - } else { - av1_highbd_convolve_y_sr_c(src, src_stride, dst, dst_stride, w, h, - filter_params_x, filter_params_y, 0, 0, - conv_params, bd); - } -} - -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 is_intrabc, int bd) { - assert(IMPLIES(is_intrabc, !scaled)); - (void)x_step_q4; - (void)y_step_q4; - (void)dst_stride; - const uint16_t *src = CONVERT_TO_SHORTPTR(src8); - - if (is_intrabc && (subpel_x_q4 != 0 || subpel_y_q4 != 0)) { - uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); - highbd_convolve_2d_for_intrabc(src, src_stride, dst, dst_stride, w, h, - subpel_x_q4, subpel_y_q4, conv_params, bd); - return; - } - - InterpFilter filter_x = 0; - InterpFilter filter_y = 0; - const int need_filter_params_x = (subpel_x_q4 != 0) | scaled; - const int need_filter_params_y = (subpel_y_q4 != 0) | scaled; - if (need_filter_params_x) - filter_x = av1_extract_interp_filter(interp_filters, 1); - if (need_filter_params_y) - filter_y = av1_extract_interp_filter(interp_filters, 0); - const InterpFilterParams *filter_params_x = - need_filter_params_x - ? av1_get_interp_filter_params_with_block_size(filter_x, w) - : NULL; - const InterpFilterParams *filter_params_y = - need_filter_params_y - ? av1_get_interp_filter_params_with_block_size(filter_y, h) - : NULL; - - 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 - 1; - memset(temp + (intermediate_height * MAX_SB_SIZE), 0, MAX_SB_SIZE); - - 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); -} |