/*
 * Copyright © 2018-2021, 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.
 */

#ifndef DAV1D_SRC_THREAD_TASK_H
#define DAV1D_SRC_THREAD_TASK_H

#include <limits.h>

#include "src/internal.h"

#define FRAME_ERROR (UINT_MAX - 1)
#define TILE_ERROR (INT_MAX - 1)

enum TaskStatus {
    DAV1D_TASK_DEFAULT,
    DAV1D_TASK_READY,
    DAV1D_TASK_RUNNING,
    DAV1D_TASK_DONE,
};

struct Dav1dTask {
    enum TaskStatus status;     // task status
    int start;                  // frame thread start flag
    unsigned frame_idx;         // frame thread id
    int frame_id;               // frame ordering
    int sby;                    // sbrow
    filter_sbrow_fn fn;         // task work
    Dav1dTask *last_deps[2];    // dependencies
    Dav1dTask *next_deps[2];    // dependant tasks
    Dav1dTask *next_exec;       // tasks scheduling
};

int dav1d_task_create_filter_sbrow(Dav1dFrameContext *f);
void dav1d_task_schedule(struct PostFilterThreadData *pftd, Dav1dTask *t);

void *dav1d_frame_task(void *data);
void *dav1d_tile_task(void *data);
void *dav1d_postfilter_task(void *data);

int dav1d_decode_frame(Dav1dFrameContext *f);
int dav1d_decode_tile_sbrow(Dav1dTileContext *t);

#endif /* DAV1D_SRC_THREAD_TASK_H */