diff options
Diffstat (limited to 'third_party/dav1d/src/cdef_apply_tmpl.c')
| -rw-r--r-- | third_party/dav1d/src/cdef_apply_tmpl.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/third_party/dav1d/src/cdef_apply_tmpl.c b/third_party/dav1d/src/cdef_apply_tmpl.c new file mode 100644 index 0000000000..c45c7109d8 --- /dev/null +++ b/third_party/dav1d/src/cdef_apply_tmpl.c @@ -0,0 +1,234 @@ +/* + * 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 <string.h> + +#include "common/intops.h" + +#include "src/cdef_apply.h" + + +enum Backup2x8Flags { + BACKUP_2X8_Y = 1 << 0, + BACKUP_2X8_UV = 1 << 1, +}; + +static void backup2lines(pixel *const dst[3], /*const*/ pixel *const src[3], + const ptrdiff_t stride[2], + const enum Dav1dPixelLayout layout) +{ + const ptrdiff_t y_stride = PXSTRIDE(stride[0]); + if (y_stride < 0) + pixel_copy(dst[0] + y_stride, src[0] + 7 * y_stride, -2 * y_stride); + else + pixel_copy(dst[0], src[0] + 6 * y_stride, 2 * y_stride); + + if (layout != DAV1D_PIXEL_LAYOUT_I400) { + const ptrdiff_t uv_stride = PXSTRIDE(stride[1]); + if (uv_stride < 0) { + const int uv_off = layout == DAV1D_PIXEL_LAYOUT_I420 ? 3 : 7; + pixel_copy(dst[1] + uv_stride, src[1] + uv_off * uv_stride, -2 * uv_stride); + pixel_copy(dst[2] + uv_stride, src[2] + uv_off * uv_stride, -2 * uv_stride); + } else { + const int uv_off = layout == DAV1D_PIXEL_LAYOUT_I420 ? 2 : 6; + pixel_copy(dst[1], src[1] + uv_off * uv_stride, 2 * uv_stride); + pixel_copy(dst[2], src[2] + uv_off * uv_stride, 2 * uv_stride); + } + } +} + +static void backup2x8(pixel dst[3][8][2], + /*const*/ pixel *const src[3], + const ptrdiff_t src_stride[2], int x_off, + const enum Dav1dPixelLayout layout, + const enum Backup2x8Flags flag) +{ + ptrdiff_t y_off = 0; + if (flag & BACKUP_2X8_Y) { + for (int y = 0; y < 8; y++, y_off += PXSTRIDE(src_stride[0])) + pixel_copy(dst[0][y], &src[0][y_off + x_off - 2], 2); + } + + if (layout == DAV1D_PIXEL_LAYOUT_I400 || !(flag & BACKUP_2X8_UV)) + return; + + const int ss_ver = layout == DAV1D_PIXEL_LAYOUT_I420; + const int ss_hor = layout != DAV1D_PIXEL_LAYOUT_I444; + + x_off >>= ss_hor; + y_off = 0; + for (int y = 0; y < (8 >> ss_ver); y++, y_off += PXSTRIDE(src_stride[1])) { + pixel_copy(dst[1][y], &src[1][y_off + x_off - 2], 2); + pixel_copy(dst[2][y], &src[2][y_off + x_off - 2], 2); + } +} + +static int adjust_strength(const int strength, const unsigned var) { + if (!var) return 0; + const int i = var >> 6 ? imin(ulog2(var >> 6), 12) : 0; + return (strength * (4 + i) + 8) >> 4; +} + +void bytefn(dav1d_cdef_brow)(Dav1dFrameContext *const f, + pixel *const p[3], + const Av1Filter *const lflvl, + const int by_start, const int by_end) +{ + const int bitdepth_min_8 = BITDEPTH == 8 ? 0 : f->cur.p.bpc - 8; + const Dav1dDSPContext *const dsp = f->dsp; + enum CdefEdgeFlags edges = CDEF_HAVE_BOTTOM | (by_start > 0 ? CDEF_HAVE_TOP : 0); + pixel *ptrs[3] = { p[0], p[1], p[2] }; + const int sbsz = 16; + const int sb64w = f->sb128w << 1; + const int damping = f->frame_hdr->cdef.damping + bitdepth_min_8; + const enum Dav1dPixelLayout layout = f->cur.p.layout; + const int uv_idx = DAV1D_PIXEL_LAYOUT_I444 - layout; + const int ss_ver = layout == DAV1D_PIXEL_LAYOUT_I420; + const int ss_hor = layout != DAV1D_PIXEL_LAYOUT_I444; + static const uint8_t uv_dirs[2][8] = { { 0, 1, 2, 3, 4, 5, 6, 7 }, + { 7, 0, 2, 4, 5, 6, 6, 6 } }; + const uint8_t *uv_dir = uv_dirs[layout == DAV1D_PIXEL_LAYOUT_I422]; + + for (int bit = 0, by = by_start; by < by_end; by += 2, edges |= CDEF_HAVE_TOP) { + const int tf = f->lf.top_pre_cdef_toggle; + const int by_idx = by & 30; + if (by + 2 >= f->bh) edges &= ~CDEF_HAVE_BOTTOM; + + if (edges & CDEF_HAVE_BOTTOM) // backup pre-filter data for next iteration + backup2lines(f->lf.cdef_line[!tf], ptrs, f->cur.stride, layout); + + ALIGN_STK_16(pixel, lr_bak, 2 /* idx */, [3 /* plane */][8 /* y */][2 /* x */]); + pixel *iptrs[3] = { ptrs[0], ptrs[1], ptrs[2] }; + edges &= ~CDEF_HAVE_LEFT; + edges |= CDEF_HAVE_RIGHT; + enum Backup2x8Flags prev_flag = 0; + for (int sbx = 0, last_skip = 1; sbx < sb64w; sbx++, edges |= CDEF_HAVE_LEFT) { + const int sb128x = sbx >> 1; + const int sb64_idx = ((by & sbsz) >> 3) + (sbx & 1); + const int cdef_idx = lflvl[sb128x].cdef_idx[sb64_idx]; + if (cdef_idx == -1 || + (!f->frame_hdr->cdef.y_strength[cdef_idx] && + !f->frame_hdr->cdef.uv_strength[cdef_idx])) + { + last_skip = 1; + goto next_sb; + } + + const int y_lvl = f->frame_hdr->cdef.y_strength[cdef_idx]; + const int uv_lvl = f->frame_hdr->cdef.uv_strength[cdef_idx]; + const enum Backup2x8Flags flag = !!y_lvl + (!!uv_lvl << 1); + + const int y_pri_lvl = (y_lvl >> 2) << bitdepth_min_8; + int y_sec_lvl = y_lvl & 3; + y_sec_lvl += y_sec_lvl == 3; + y_sec_lvl <<= bitdepth_min_8; + + const int uv_pri_lvl = (uv_lvl >> 2) << bitdepth_min_8; + int uv_sec_lvl = uv_lvl & 3; + uv_sec_lvl += uv_sec_lvl == 3; + uv_sec_lvl <<= bitdepth_min_8; + + pixel *bptrs[3] = { iptrs[0], iptrs[1], iptrs[2] }; + for (int bx = sbx * sbsz; bx < imin((sbx + 1) * sbsz, f->bw); + bx += 2, edges |= CDEF_HAVE_LEFT) + { + if (bx + 2 >= f->bw) edges &= ~CDEF_HAVE_RIGHT; + + // check if this 8x8 block had any coded coefficients; if not, + // go to the next block + const unsigned bx_mask = 3U << (bx & 14); + const int bx_idx = (bx & 16) >> 4; + if (!((lflvl[sb128x].noskip_mask[by_idx + 0][bx_idx] | + lflvl[sb128x].noskip_mask[by_idx + 1][bx_idx]) & bx_mask)) + { + last_skip = 1; + goto next_b; + } + const int do_left = last_skip ? flag : (prev_flag ^ flag) & flag; + prev_flag = flag; + if (do_left && edges & CDEF_HAVE_LEFT) { + // we didn't backup the prefilter data because it wasn't + // there, so do it here instead + backup2x8(lr_bak[bit], bptrs, f->cur.stride, 0, layout, do_left); + } + if (edges & CDEF_HAVE_RIGHT) { + // backup pre-filter data for next iteration + backup2x8(lr_bak[!bit], bptrs, f->cur.stride, 8, layout, flag); + } + + int dir; + unsigned variance; + if (y_pri_lvl || uv_pri_lvl) + dir = dsp->cdef.dir(bptrs[0], f->cur.stride[0], + &variance HIGHBD_CALL_SUFFIX); + + if (y_pri_lvl) { + const int adj_y_pri_lvl = adjust_strength(y_pri_lvl, variance); + if (adj_y_pri_lvl || y_sec_lvl) + dsp->cdef.fb[0](bptrs[0], f->cur.stride[0], lr_bak[bit][0], + &f->lf.cdef_line[tf][0][bx * 4], + adj_y_pri_lvl, y_sec_lvl, dir, + damping, edges HIGHBD_CALL_SUFFIX); + } else if (y_sec_lvl) + dsp->cdef.fb[0](bptrs[0], f->cur.stride[0], lr_bak[bit][0], + &f->lf.cdef_line[tf][0][bx * 4], + 0, y_sec_lvl, 0, + damping, edges HIGHBD_CALL_SUFFIX); + if (uv_lvl) { + assert(layout != DAV1D_PIXEL_LAYOUT_I400); + const int uvdir = uv_pri_lvl ? uv_dir[dir] : 0; + for (int pl = 1; pl <= 2; pl++) { + dsp->cdef.fb[uv_idx](bptrs[pl], f->cur.stride[1], lr_bak[bit][pl], + &f->lf.cdef_line[tf][pl][bx * 4 >> ss_hor], + uv_pri_lvl, uv_sec_lvl, uvdir, + damping - 1, edges HIGHBD_CALL_SUFFIX); + } + } + + bit ^= 1; + last_skip = 0; + + next_b: + bptrs[0] += 8; + bptrs[1] += 8 >> ss_hor; + bptrs[2] += 8 >> ss_hor; + } + + next_sb: + iptrs[0] += sbsz * 4; + iptrs[1] += sbsz * 4 >> ss_hor; + iptrs[2] += sbsz * 4 >> ss_hor; + } + + ptrs[0] += 8 * PXSTRIDE(f->cur.stride[0]); + ptrs[1] += 8 * PXSTRIDE(f->cur.stride[1]) >> ss_ver; + ptrs[2] += 8 * PXSTRIDE(f->cur.stride[1]) >> ss_ver; + f->lf.top_pre_cdef_toggle ^= 1; + } +} |