/*

 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.

 *

 *  Use of this source code is governed by a BSD-style license

 *  that can be found in the LICENSE file in the root of the source

 *  tree. An additional intellectual property rights grant can be found

 *  in the file PATENTS.  All contributing project authors may

 *  be found in the AUTHORS file in the root of the source tree.

 */

#include "vpx_config.h"

#include "alloccommon.h"

#include "blockd.h"

#include "vpx_mem/vpx_mem.h"

#include "onyxc_int.h"

#include "findnearmv.h"

#include "entropymode.h"

#include "systemdependent.h"

// This function frees all frame and post processing buffers, as well as

// indirect references to them via context and mode info allocations.

void vp8_de_alloc_frame_buffers(VP8_COMMON *oci) {

  int i;

  for (i = 0; i < NUM_YV12_BUFFERS; ++i) {

    vp8_yv12_de_alloc_frame_buffer(&oci->yv12_fb[i]);

    oci->fb_idx_ref_cnt[i] = 0;

  }

  vp8_yv12_de_alloc_frame_buffer(&oci->temp_scale_frame);

#if CONFIG_POSTPROC

  vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer);

  if (oci->post_proc_buffer_int_used) {

    vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer_int);

    oci->post_proc_buffer_int_used = 0;

  }

  vpx_free(oci->pp_limits_buffer);

  oci->pp_limits_buffer = NULL;

  vpx_free(oci->postproc_state.generated_noise);

  memset(&oci->postproc_state, 0, sizeof(oci->postproc_state));

#endif

  vpx_free(oci->above_context);

  vpx_free(oci->mip);

#if CONFIG_ERROR_CONCEALMENT

  vpx_free(oci->prev_mip);

  oci->prev_mip = NULL;

  oci->prev_mi = NULL;

#endif

  oci->above_context = NULL;

  oci->mip = NULL;

  oci->mi = NULL;

  oci->show_frame_mi = NULL;

  oci->frame_to_show = NULL;

}

int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height) {

  int i;

  vp8_de_alloc_frame_buffers(oci);

  /* our internal buffers are always multiples of 16 */

  if ((width & 0xf) != 0) width += 16 - (width & 0xf);

  if ((height & 0xf) != 0) height += 16 - (height & 0xf);

  for (i = 0; i < NUM_YV12_BUFFERS; ++i) {

    if (vp8_yv12_alloc_frame_buffer(&oci->yv12_fb[i], width, height,

                                    VP8BORDERINPIXELS) < 0) {

      goto allocation_fail;

    }

  }

  oci->new_fb_idx = 0;

  oci->lst_fb_idx = 1;

  oci->gld_fb_idx = 2;

  oci->alt_fb_idx = 3;

  oci->fb_idx_ref_cnt[0] = 1;

  oci->fb_idx_ref_cnt[1] = 1;

  oci->fb_idx_ref_cnt[2] = 1;

  oci->fb_idx_ref_cnt[3] = 1;

  if (vp8_yv12_alloc_frame_buffer(&oci->temp_scale_frame, width, 16,

                                  VP8BORDERINPIXELS) < 0) {

    goto allocation_fail;

  }

  oci->mb_rows = height >> 4;

  oci->mb_cols = width >> 4;

  oci->MBs = oci->mb_rows * oci->mb_cols;

  oci->mode_info_stride = oci->mb_cols + 1;

  oci->mip =

      vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO));

  if (!oci->mip) goto allocation_fail;

  oci->mi = oci->mip + oci->mode_info_stride + 1;

  /* Allocation of previous mode info will be done in vp8_decode_frame()

   * as it is a decoder only data */

  oci->above_context =

      vpx_calloc(sizeof(ENTROPY_CONTEXT_PLANES) * oci->mb_cols, 1);

  if (!oci->above_context) goto allocation_fail;

#if CONFIG_POSTPROC

  if (vp8_yv12_alloc_frame_buffer(&oci->post_proc_buffer, width, height,

                                  VP8BORDERINPIXELS) < 0) {

    goto allocation_fail;

  }

  memset(oci->post_proc_buffer.buffer_alloc, 128,

         oci->post_proc_buffer.frame_size);

  /* Allocate buffer to store post-processing filter coefficients.

   *

   * Note: Round up mb_cols to support SIMD reads

   */

  oci->pp_limits_buffer = vpx_memalign(16, 24 * ((oci->mb_cols + 1) & ~1));

  if (!oci->pp_limits_buffer) goto allocation_fail;

#endif

  return 0;

allocation_fail:

  vp8_de_alloc_frame_buffers(oci);

  return 1;

}

void vp8_setup_version(VP8_COMMON *cm) {

  switch (cm->version) {

    case 0:

      cm->no_lpf = 0;

      cm->filter_type = NORMAL_LOOPFILTER;

      cm->use_bilinear_mc_filter = 0;

      cm->full_pixel = 0;

      break;

    case 1:

      cm->no_lpf = 0;

      cm->filter_type = SIMPLE_LOOPFILTER;

      cm->use_bilinear_mc_filter = 1;

      cm->full_pixel = 0;

      break;

    case 2:

      cm->no_lpf = 1;

      cm->filter_type = NORMAL_LOOPFILTER;

      cm->use_bilinear_mc_filter = 1;

      cm->full_pixel = 0;

      break;

    case 3:

      cm->no_lpf = 1;

      cm->filter_type = SIMPLE_LOOPFILTER;

      cm->use_bilinear_mc_filter = 1;

      cm->full_pixel = 1;

      break;

    default:

      /*4,5,6,7 are reserved for future use*/

      cm->no_lpf = 0;

      cm->filter_type = NORMAL_LOOPFILTER;

      cm->use_bilinear_mc_filter = 0;

      cm->full_pixel = 0;

      break;

  }

}

void vp8_create_common(VP8_COMMON *oci) {

  vp8_machine_specific_config(oci);

  vp8_init_mbmode_probs(oci);

  vp8_default_bmode_probs(oci->fc.bmode_prob);

  oci->mb_no_coeff_skip = 1;

  oci->no_lpf = 0;

  oci->filter_type = NORMAL_LOOPFILTER;

  oci->use_bilinear_mc_filter = 0;

  oci->full_pixel = 0;

  oci->multi_token_partition = ONE_PARTITION;

  oci->clamp_type = RECON_CLAMP_REQUIRED;

  /* Initialize reference frame sign bias structure to defaults */

  memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias));

  /* Default disable buffer to buffer copying */

  oci->copy_buffer_to_gf = 0;

  oci->copy_buffer_to_arf = 0;

}

void vp8_remove_common(VP8_COMMON *oci) { vp8_de_alloc_frame_buffers(oci); }