/*

 * Copyright (c) 2021, Alliance for Open Media. All rights reserved.

 *

 * This source code is subject to the terms of the BSD 2 Clause License and

 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License

 * was not distributed with this source code in the LICENSE file, you can

 * obtain it at www.aomedia.org/license/software. If the Alliance for Open

 * Media Patent License 1.0 was not distributed with this source code in the

 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.

 */

#include <string.h>

#include "av1/common/common.h"

#include "av1/encoder/external_partition.h"

#include "config/aom_config.h"

aom_codec_err_t av1_ext_part_create(aom_ext_part_funcs_t funcs,

                                    aom_ext_part_config_t config,

                                    ExtPartController *ext_part_controller) {

  if (ext_part_controller == NULL) {

    return AOM_CODEC_INVALID_PARAM;

  }

  ext_part_controller->funcs = funcs;

  ext_part_controller->config = config;

  const aom_ext_part_status_t status = ext_part_controller->funcs.create_model(

      ext_part_controller->funcs.priv, &ext_part_controller->config,

      &ext_part_controller->model);

  if (status == AOM_EXT_PART_ERROR) {

    return AOM_CODEC_ERROR;

  } else if (status == AOM_EXT_PART_TEST) {

    ext_part_controller->test_mode = 1;

    ext_part_controller->ready = 0;

    return AOM_CODEC_OK;

  }

  assert(status == AOM_EXT_PART_OK);

  ext_part_controller->ready = 1;

  return AOM_CODEC_OK;

}

static aom_codec_err_t ext_part_init(ExtPartController *ext_part_controller) {

  if (ext_part_controller == NULL) {

    return AOM_CODEC_INVALID_PARAM;

  }

  memset(ext_part_controller, 0, sizeof(*ext_part_controller));

  return AOM_CODEC_OK;

}

aom_codec_err_t av1_ext_part_delete(ExtPartController *ext_part_controller) {

  if (ext_part_controller == NULL) {

    return AOM_CODEC_INVALID_PARAM;

  }

  if (ext_part_controller->ready) {

    const aom_ext_part_status_t status =

        ext_part_controller->funcs.delete_model(ext_part_controller->model);

    if (status != AOM_EXT_PART_OK) {

      return AOM_CODEC_ERROR;

    }

  }

  return ext_part_init(ext_part_controller);

}

bool av1_ext_part_get_partition_decision(ExtPartController *ext_part_controller,

                                         aom_partition_decision_t *decision) {

  assert(ext_part_controller != NULL);

  assert(ext_part_controller->ready);

  assert(decision != NULL);

  const aom_ext_part_status_t status =

      ext_part_controller->funcs.get_partition_decision(

          ext_part_controller->model, decision);

  if (status != AOM_EXT_PART_OK) return false;

  return true;

}

bool av1_ext_part_send_features(ExtPartController *ext_part_controller,

                                const aom_partition_features_t *features) {

  assert(ext_part_controller != NULL);

  assert(ext_part_controller->ready);

  assert(features != NULL);

  const aom_ext_part_status_t status = ext_part_controller->funcs.send_features(

      ext_part_controller->model, features);

  if (status != AOM_EXT_PART_OK) return false;

  return true;

}

#if CONFIG_PARTITION_SEARCH_ORDER

bool av1_ext_part_send_partition_stats(ExtPartController *ext_part_controller,

                                       const aom_partition_stats_t *stats) {

  assert(ext_part_controller != NULL);

  assert(ext_part_controller->ready);

  assert(stats != NULL);

  const aom_ext_part_status_t status =

      ext_part_controller->funcs.send_partition_stats(

          ext_part_controller->model, stats);

  if (status != AOM_EXT_PART_OK) return false;

  return true;

}

aom_ext_part_decision_mode_t av1_get_ext_part_decision_mode(

    const ExtPartController *ext_part_controller) {

  return ext_part_controller->funcs.decision_mode;

}

#endif  // CONFIG_PARTITION_SEARCH_ORDER