/*****************************************************************************
 * This file is part of uvg266 VVC encoder.
 *
 * Copyright (c) 2021, Tampere University, ITU/ISO/IEC, project contributors
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 * 
 * * 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.
 * 
 * * Neither the name of the Tampere University or ITU/ISO/IEC nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 * 
 * 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 HOLDER 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
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
 ****************************************************************************/

#include "videoframe.h"

#include <stdlib.h>

#include "image.h"
#include "sao.h"
#include "alf.h"

/**
 * \brief Allocate new frame
 * \param pic picture pointer
 * \return picture pointer
 */
videoframe_t * uvg_videoframe_alloc(int32_t width,
                                    int32_t height,
                                    enum uvg_chroma_format chroma_format,
                                    enum uvg_alf alf_type, bool cclm)
{
  videoframe_t *frame = calloc(1, sizeof(videoframe_t));
  if (!frame) return 0;

  frame->width  = width;
  frame->height = height;
  frame->width_in_lcu  = CEILDIV(frame->width,  LCU_WIDTH);
  frame->height_in_lcu = CEILDIV(frame->height, LCU_WIDTH);

  frame->sao_luma = MALLOC(sao_info_t, frame->width_in_lcu * frame->height_in_lcu);
  if (chroma_format != UVG_CSP_400) {
    frame->sao_chroma = MALLOC(sao_info_t, frame->width_in_lcu * frame->height_in_lcu);
    if (cclm) {
      assert(chroma_format == UVG_CSP_420);
      frame->cclm_luma_rec = MALLOC(uvg_pixel, (((width + 7) & ~7) + FRAME_PADDING_LUMA) * (((height + 7) & ~7) + FRAME_PADDING_LUMA) / 4);
      frame->cclm_luma_rec_top_line = MALLOC(uvg_pixel, (((width + 7) & ~7) + FRAME_PADDING_LUMA) / 2 * CEILDIV(height, 64));
    }
  }
  
  return frame;
}

/**
 * \brief Free memory allocated to frame
 * \param pic picture pointer
 * \return 1 on success, 0 on failure
 */
int uvg_videoframe_free(videoframe_t * const frame)
{
  if (frame->source_lmcs_mapped) {
    uvg_image_free(frame->source_lmcs);
    uvg_image_free(frame->rec_lmcs);
    frame->source_lmcs_mapped = false;
  }
  if(frame->cclm_luma_rec) {
    FREE_POINTER(frame->cclm_luma_rec);
  }
  if(frame->cclm_luma_rec_top_line) {
    FREE_POINTER(frame->cclm_luma_rec_top_line);
  }

  uvg_image_free(frame->source);
  frame->source = NULL;
  uvg_image_free(frame->rec);
  frame->rec = NULL;

  frame->source_lmcs = NULL;
  frame->rec_lmcs = NULL;

  uvg_cu_array_free(&frame->cu_array);
  uvg_cu_array_free(&frame->chroma_cu_array);

  FREE_POINTER(frame->sao_luma);
  FREE_POINTER(frame->sao_chroma);

  free(frame);

  return 1;
}

void uvg_videoframe_set_poc(videoframe_t * const frame, const int32_t poc) {
  frame->poc = poc;
}