/**

 * Copyright (C) 2025 Niklas Haas

 *

 * This file is part of FFmpeg.

 *

 * FFmpeg is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * FFmpeg is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with FFmpeg; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#ifndef SWSCALE_OPS_INTERNAL_H

#define SWSCALE_OPS_INTERNAL_H

#include "libavutil/mem_internal.h"

#include "ops.h"

#include "ops_dispatch.h"

#define Q(N) ((AVRational64) { N, 1 })

static inline AVRational64 ff_sws_pixel_expand(SwsPixelType from, SwsPixelType to)

{

    const int src = ff_sws_pixel_type_size(from);

    const int dst = ff_sws_pixel_type_size(to);

    if (src > dst)

        return Q(0);

    int scale = 1;

    for (int i = 1; i < dst / src; i++)

        scale = (scale << (src * 8)) | 1;

    return Q(scale);

}

Unexecuted instantiation: format.c:ff_sws_pixel_expand

Unexecuted instantiation: ops.c:ff_sws_pixel_expand

Unexecuted instantiation: ops_dispatch.c:ff_sws_pixel_expand

Unexecuted instantiation: ops_memcpy.c:ff_sws_pixel_expand

Unexecuted instantiation: ops_optimizer.c:ff_sws_pixel_expand

Unexecuted instantiation: uops_backend.c:ff_sws_pixel_expand

Unexecuted instantiation: ops_chain.c:ff_sws_pixel_expand

static inline void ff_sws_pack_op_decode(const SwsOp *op, uint64_t mask[4], int shift[4])

{

    int size = 0;

    for (int i = 0; i < 4; i++)

        size += op->pack.pattern[i];

    for (int i = 0; i < 4; i++) {

        const int bits = op->pack.pattern[i];

        mask[i] = (UINT64_C(1) << bits) - 1;

        shift[i] = (i ? shift[i - 1] : size) - bits;

    }

}

Unexecuted instantiation: format.c:ff_sws_pack_op_decode

Unexecuted instantiation: ops.c:ff_sws_pack_op_decode

Unexecuted instantiation: ops_dispatch.c:ff_sws_pack_op_decode

Unexecuted instantiation: ops_memcpy.c:ff_sws_pack_op_decode

Unexecuted instantiation: ops_optimizer.c:ff_sws_pack_op_decode

Unexecuted instantiation: uops_backend.c:ff_sws_pack_op_decode

Unexecuted instantiation: ops_chain.c:ff_sws_pack_op_decode

/**

 * Split an op list into two at the given index. The split will be mediated

 * by a set of planar read/write operations, plus a swizzle (if necessary)

 * to re-order only used components. If a split is performed, both output

 * lists will be optimized before returning.

 *

 * @param ops1 The first part of the split op list. Will be modified in-place.

 * @param ops2 The second part of the split op list will be returned here, or

 *             NULL if no split was necessary.

 * @param index The index of the operation to split before. The operation

 *              itself will be absent from `ops1` and instead moved to the

 *              start of `ops2`.

 *

 * Returnse 0 or a negative error code.

 */

int ff_sws_op_list_split_at(SwsOpList *ops1, SwsOpList **ops2, int index);

/**

 * Reduce an op list into a reduced subset that operates only on a given

 * subset of planes. No effect if the output is not planar, or if the plane

 * mask is empty or equal to all planes.

 *

 * @param ops1 Updated in-place to contain only the selected planes.

 * @param ops2 The removed remainder is returned here, or NULL if no-op.

 * @param planes A mask of the plane indices to keep.

 *

 * Returns 0 or a negative error code.

 */

int ff_sws_op_list_split_planes(SwsOpList *ops1, SwsOpList **ops2, SwsCompMask planes);

#endif /* SWSCALE_OPS_INTERNAL_H */