diff options
Diffstat (limited to 'third_party/dav1d/src/lr_apply_tmpl.c')
| -rw-r--r-- | third_party/dav1d/src/lr_apply_tmpl.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/third_party/dav1d/src/lr_apply_tmpl.c b/third_party/dav1d/src/lr_apply_tmpl.c new file mode 100644 index 0000000000..c517f89820 --- /dev/null +++ b/third_party/dav1d/src/lr_apply_tmpl.c @@ -0,0 +1,201 @@ +/* + * Copyright © 2018, VideoLAN and dav1d authors + * Copyright © 2018, Two Orioles, LLC + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" + +#include <stdio.h> + +#include "common/intops.h" + +#include "src/lr_apply.h" + +static void lr_stripe(const Dav1dFrameContext *const f, pixel *p, + const pixel (*left)[4], int x, int y, + const int plane, const int unit_w, const int row_h, + const Av1RestorationUnit *const lr, enum LrEdgeFlags edges) +{ + const Dav1dDSPContext *const dsp = f->dsp; + const int chroma = !!plane; + const int ss_ver = chroma & (f->sr_cur.p.p.layout == DAV1D_PIXEL_LAYOUT_I420); + const ptrdiff_t stride = f->sr_cur.p.stride[chroma]; + const int sby = (y + (y ? 8 << ss_ver : 0)) >> (6 - ss_ver + f->seq_hdr->sb128); + const int have_tt = f->c->n_tc > 1; + const pixel *lpf = f->lf.lr_lpf_line[plane] + + have_tt * (sby * (4 << f->seq_hdr->sb128) - 4) * PXSTRIDE(stride) + x; + + // The first stripe of the frame is shorter by 8 luma pixel rows. + int stripe_h = imin((64 - 8 * !y) >> ss_ver, row_h - y); + + looprestorationfilter_fn lr_fn; + LooprestorationParams params; + if (lr->type == DAV1D_RESTORATION_WIENER) { + int16_t (*const filter)[8] = params.filter; + filter[0][0] = filter[0][6] = lr->filter_h[0]; + filter[0][1] = filter[0][5] = lr->filter_h[1]; + filter[0][2] = filter[0][4] = lr->filter_h[2]; + filter[0][3] = -(filter[0][0] + filter[0][1] + filter[0][2]) * 2; +#if BITDEPTH != 8 + /* For 8-bit SIMD it's beneficial to handle the +128 separately + * in order to avoid overflows. */ + filter[0][3] += 128; +#endif + + filter[1][0] = filter[1][6] = lr->filter_v[0]; + filter[1][1] = filter[1][5] = lr->filter_v[1]; + filter[1][2] = filter[1][4] = lr->filter_v[2]; + filter[1][3] = 128 - (filter[1][0] + filter[1][1] + filter[1][2]) * 2; + + lr_fn = dsp->lr.wiener[!(filter[0][0] | filter[1][0])]; + } else { + assert(lr->type == DAV1D_RESTORATION_SGRPROJ); + const uint16_t *const sgr_params = dav1d_sgr_params[lr->sgr_idx]; + params.sgr.s0 = sgr_params[0]; + params.sgr.s1 = sgr_params[1]; + params.sgr.w0 = lr->sgr_weights[0]; + params.sgr.w1 = 128 - (lr->sgr_weights[0] + lr->sgr_weights[1]); + + lr_fn = dsp->lr.sgr[!!sgr_params[0] + !!sgr_params[1] * 2 - 1]; + } + + while (y + stripe_h <= row_h) { + // Change the HAVE_BOTTOM bit in edges to (sby + 1 != f->sbh || y + stripe_h != row_h) + edges ^= (-(sby + 1 != f->sbh || y + stripe_h != row_h) ^ edges) & LR_HAVE_BOTTOM; + lr_fn(p, stride, left, lpf, unit_w, stripe_h, ¶ms, edges HIGHBD_CALL_SUFFIX); + + left += stripe_h; + y += stripe_h; + p += stripe_h * PXSTRIDE(stride); + edges |= LR_HAVE_TOP; + stripe_h = imin(64 >> ss_ver, row_h - y); + if (stripe_h == 0) break; + lpf += 4 * PXSTRIDE(stride); + } +} + +static void backup4xU(pixel (*dst)[4], const pixel *src, const ptrdiff_t src_stride, + int u) +{ + for (; u > 0; u--, dst++, src += PXSTRIDE(src_stride)) + pixel_copy(dst, src, 4); +} + +static void lr_sbrow(const Dav1dFrameContext *const f, pixel *p, const int y, + const int w, const int h, const int row_h, const int plane) +{ + const int chroma = !!plane; + const int ss_ver = chroma & (f->sr_cur.p.p.layout == DAV1D_PIXEL_LAYOUT_I420); + const int ss_hor = chroma & (f->sr_cur.p.p.layout != DAV1D_PIXEL_LAYOUT_I444); + const ptrdiff_t p_stride = f->sr_cur.p.stride[chroma]; + + const int unit_size_log2 = f->frame_hdr->restoration.unit_size[!!plane]; + const int unit_size = 1 << unit_size_log2; + const int half_unit_size = unit_size >> 1; + const int max_unit_size = unit_size + half_unit_size; + + // Y coordinate of the sbrow (y is 8 luma pixel rows above row_y) + const int row_y = y + ((8 >> ss_ver) * !!y); + + // FIXME This is an ugly hack to lookup the proper AV1Filter unit for + // chroma planes. Question: For Multithreaded decoding, is it better + // to store the chroma LR information with collocated Luma information? + // In other words. For a chroma restoration unit locate at 128,128 and + // with a 4:2:0 chroma subsampling, do we store the filter information at + // the AV1Filter unit located at (128,128) or (256,256) + // TODO Support chroma subsampling. + const int shift_hor = 7 - ss_hor; + + /* maximum sbrow height is 128 + 8 rows offset */ + ALIGN_STK_16(pixel, pre_lr_border, 2, [128 + 8][4]); + const Av1RestorationUnit *lr[2]; + + enum LrEdgeFlags edges = (y > 0 ? LR_HAVE_TOP : 0) | LR_HAVE_RIGHT; + + int aligned_unit_pos = row_y & ~(unit_size - 1); + if (aligned_unit_pos && aligned_unit_pos + half_unit_size > h) + aligned_unit_pos -= unit_size; + aligned_unit_pos <<= ss_ver; + const int sb_idx = (aligned_unit_pos >> 7) * f->sr_sb128w; + const int unit_idx = ((aligned_unit_pos >> 6) & 1) << 1; + lr[0] = &f->lf.lr_mask[sb_idx].lr[plane][unit_idx]; + int restore = lr[0]->type != DAV1D_RESTORATION_NONE; + int x = 0, bit = 0; + for (; x + max_unit_size <= w; p += unit_size, edges |= LR_HAVE_LEFT, bit ^= 1) { + const int next_x = x + unit_size; + const int next_u_idx = unit_idx + ((next_x >> (shift_hor - 1)) & 1); + lr[!bit] = + &f->lf.lr_mask[sb_idx + (next_x >> shift_hor)].lr[plane][next_u_idx]; + const int restore_next = lr[!bit]->type != DAV1D_RESTORATION_NONE; + if (restore_next) + backup4xU(pre_lr_border[bit], p + unit_size - 4, p_stride, row_h - y); + if (restore) + lr_stripe(f, p, pre_lr_border[!bit], x, y, plane, unit_size, row_h, + lr[bit], edges); + x = next_x; + restore = restore_next; + } + if (restore) { + edges &= ~LR_HAVE_RIGHT; + const int unit_w = w - x; + lr_stripe(f, p, pre_lr_border[!bit], x, y, plane, unit_w, row_h, lr[bit], edges); + } +} + +void bytefn(dav1d_lr_sbrow)(Dav1dFrameContext *const f, pixel *const dst[3], + const int sby) +{ + const int offset_y = 8 * !!sby; + const ptrdiff_t *const dst_stride = f->sr_cur.p.stride; + const int restore_planes = f->lf.restore_planes; + const int not_last = sby + 1 < f->sbh; + + if (restore_planes & LR_RESTORE_Y) { + const int h = f->sr_cur.p.p.h; + const int w = f->sr_cur.p.p.w; + const int next_row_y = (sby + 1) << (6 + f->seq_hdr->sb128); + const int row_h = imin(next_row_y - 8 * not_last, h); + const int y_stripe = (sby << (6 + f->seq_hdr->sb128)) - offset_y; + lr_sbrow(f, dst[0] - offset_y * PXSTRIDE(dst_stride[0]), y_stripe, w, + h, row_h, 0); + } + if (restore_planes & (LR_RESTORE_U | LR_RESTORE_V)) { + const int ss_ver = f->sr_cur.p.p.layout == DAV1D_PIXEL_LAYOUT_I420; + const int ss_hor = f->sr_cur.p.p.layout != DAV1D_PIXEL_LAYOUT_I444; + const int h = (f->sr_cur.p.p.h + ss_ver) >> ss_ver; + const int w = (f->sr_cur.p.p.w + ss_hor) >> ss_hor; + const int next_row_y = (sby + 1) << ((6 - ss_ver) + f->seq_hdr->sb128); + const int row_h = imin(next_row_y - (8 >> ss_ver) * not_last, h); + const int offset_uv = offset_y >> ss_ver; + const int y_stripe = (sby << ((6 - ss_ver) + f->seq_hdr->sb128)) - offset_uv; + if (restore_planes & LR_RESTORE_U) + lr_sbrow(f, dst[1] - offset_uv * PXSTRIDE(dst_stride[1]), y_stripe, + w, h, row_h, 1); + + if (restore_planes & LR_RESTORE_V) + lr_sbrow(f, dst[2] - offset_uv * PXSTRIDE(dst_stride[1]), y_stripe, + w, h, row_h, 2); + } +} |