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 /*

  *  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 "blockd.h"

 #include "vpx_mem/vpx_mem.h"

 #include "onyxc_int.h"

 #include "findnearmv.h"

 #include "entropymode.h"

 #include "systemdependent.h"

 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]);

     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);

     vpx_free(oci->pp_limits_buffer);

     oci->pp_limits_buffer = NULL;

 #endif

     vpx_free(oci->above_context);

     vpx_free(oci->mip);

 #if CONFIG_ERROR_CONCEALMENT

     vpx_free(oci->prev_mip);

     oci->prev_mip = NULL;

 #endif

     oci->above_context = NULL;

     oci->mip = 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++)

     {

         oci->fb_idx_ref_cnt[i] = 0;

         oci->yv12_fb[i].flags = 0;

         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;

     oci->post_proc_buffer_int_used = 0;

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

     vpx_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 */

     vpx_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);

 }