chromium/third_party/dav1d/libdav1d/src/lf_apply_tmpl.c

/*
 * 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/lf_apply.h"
#include "src/lr_apply.h"

// The loop filter buffer stores 12 rows of pixels. A superblock block will
// contain at most 2 stripes. Each stripe requires 4 rows pixels (2 above
// and 2 below) the final 4 rows are used to swap the bottom of the last
// stripe with the top of the next super block row.
static void backup_lpf(const Dav1dFrameContext *const f,
                       pixel *dst, const ptrdiff_t dst_stride,
                       const pixel *src, const ptrdiff_t src_stride,
                       const int ss_ver, const int sb128,
                       int row, const int row_h, const int src_w,
                       const int h, const int ss_hor, const int lr_backup)
{ … }

void bytefn(dav1d_copy_lpf)(Dav1dFrameContext *const f,
                            /*const*/ pixel *const src[3], const int sby)
{ … }

static inline void filter_plane_cols_y(const Dav1dFrameContext *const f,
                                       const int have_left,
                                       const uint8_t (*lvl)[4],
                                       const ptrdiff_t b4_stride,
                                       const uint16_t (*const mask)[3][2],
                                       pixel *dst, const ptrdiff_t ls,
                                       const int w,
                                       const int starty4, const int endy4)
{ … }

static inline void filter_plane_rows_y(const Dav1dFrameContext *const f,
                                       const int have_top,
                                       const uint8_t (*lvl)[4],
                                       const ptrdiff_t b4_stride,
                                       const uint16_t (*const mask)[3][2],
                                       pixel *dst, const ptrdiff_t ls,
                                       const int w,
                                       const int starty4, const int endy4)
{ … }

static inline void filter_plane_cols_uv(const Dav1dFrameContext *const f,
                                        const int have_left,
                                        const uint8_t (*lvl)[4],
                                        const ptrdiff_t b4_stride,
                                        const uint16_t (*const mask)[2][2],
                                        pixel *const u, pixel *const v,
                                        const ptrdiff_t ls, const int w,
                                        const int starty4, const int endy4,
                                        const int ss_ver)
{ … }

static inline void filter_plane_rows_uv(const Dav1dFrameContext *const f,
                                        const int have_top,
                                        const uint8_t (*lvl)[4],
                                        const ptrdiff_t b4_stride,
                                        const uint16_t (*const mask)[2][2],
                                        pixel *const u, pixel *const v,
                                        const ptrdiff_t ls, const int w,
                                        const int starty4, const int endy4,
                                        const int ss_hor)
{ … }

void bytefn(dav1d_loopfilter_sbrow_cols)(const Dav1dFrameContext *const f,
                                         pixel *const p[3], Av1Filter *const lflvl,
                                         int sby, const int start_of_tile_row)
{ … }

void bytefn(dav1d_loopfilter_sbrow_rows)(const Dav1dFrameContext *const f,
                                         pixel *const p[3], Av1Filter *const lflvl,
                                         int sby)
{ … }