vp8/common/alloccommon.c

   1 /*
   2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10
  11
  12 #include "vpx_ports/config.h"
  13 #include "blockd.h"
  14 #include "vpx_mem/vpx_mem.h"
  15 #include "onyxc_int.h"
  16 #include "findnearmv.h"
  17 #include "entropymode.h"
  18 #include "systemdependent.h"
  19
  20
  21 extern  void vp8_init_scan_order_mask();
  22
  23 static void update_mode_info_border(MODE_INFO *mi, int rows, int cols)
  24 {
  25     int i;
  26     vpx_memset(mi - cols - 2, 0, sizeof(MODE_INFO) * (cols + 1));
  27
  28     for (i = 0; i < rows; i++)
  29     {
  30         /* TODO(holmer): Bug? This updates the last element of each row
  31          * rather than the border element!
  32          */
  33         vpx_memset(&mi[i*cols-1], 0, sizeof(MODE_INFO));
  34     }
  35 }
  36
  37 void vp8_de_alloc_frame_buffers(VP8_COMMON *oci)
  38 {
  39     int i;
  40
  41     for (i = 0; i < NUM_YV12_BUFFERS; i++)
  42         vp8_yv12_de_alloc_frame_buffer(&oci->yv12_fb[i]);
  43
  44     vp8_yv12_de_alloc_frame_buffer(&oci->temp_scale_frame);
  45     vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer);
  46
  47     vpx_free(oci->above_context);
  48     vpx_free(oci->mip);
  49     vpx_free(oci->prev_mip);
  50
  51     oci->above_context = 0;
  52     oci->mip = 0;
  53     oci->prev_mip = 0;
  54
  55 }
  56
  57 int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height)
  58 {
  59     int i;
  60
  61     vp8_de_alloc_frame_buffers(oci);
  62
  63     /* our internal buffers are always multiples of 16 */
  64     if ((width & 0xf) != 0)
  65         width += 16 - (width & 0xf);
  66
  67     if ((height & 0xf) != 0)
  68         height += 16 - (height & 0xf);
  69
  70
  71     for (i = 0; i < NUM_YV12_BUFFERS; i++)
  72     {
  73         oci->fb_idx_ref_cnt[i] = 0;
  74         oci->yv12_fb[i].flags = 0;
  75         if (vp8_yv12_alloc_frame_buffer(&oci->yv12_fb[i], width, height, VP8BORDERINPIXELS) < 0)
  76         {
  77             vp8_de_alloc_frame_buffers(oci);
  78             return 1;
  79         }
  80     }
  81
  82     oci->new_fb_idx = 0;
  83     oci->lst_fb_idx = 1;
  84     oci->gld_fb_idx = 2;
  85     oci->alt_fb_idx = 3;
  86
  87     oci->fb_idx_ref_cnt[0] = 1;
  88     oci->fb_idx_ref_cnt[1] = 1;
  89     oci->fb_idx_ref_cnt[2] = 1;
  90     oci->fb_idx_ref_cnt[3] = 1;
  91
  92     if (vp8_yv12_alloc_frame_buffer(&oci->temp_scale_frame,   width, 16, VP8BORDERINPIXELS) < 0)
  93     {
  94         vp8_de_alloc_frame_buffers(oci);
  95         return 1;
  96     }
  97
  98     if (vp8_yv12_alloc_frame_buffer(&oci->post_proc_buffer, width, height, VP8BORDERINPIXELS) < 0)
  99     {
 100         vp8_de_alloc_frame_buffers(oci);
 101         return 1;
 102     }
 103
 104     oci->mb_rows = height >> 4;
 105     oci->mb_cols = width >> 4;
 106     oci->MBs = oci->mb_rows * oci->mb_cols;
 107     oci->mode_info_stride = oci->mb_cols + 1;
 108     oci->mip = vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO));
 109
 110     if (!oci->mip)
 111     {
 112         vp8_de_alloc_frame_buffers(oci);
 113         return 1;
 114     }
 115
 116     oci->mi = oci->mip + oci->mode_info_stride + 1;
 117
 118     /* allocate memory for last frame MODE_INFO array */
 119 #if CONFIG_ERROR_CONCEALMENT
 120     oci->prev_mip = vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO));
 121
 122     if (!oci->prev_mip)
 123     {
 124         vp8_de_alloc_frame_buffers(oci);
 125         return 1;
 126     }
 127
 128     oci->prev_mi = oci->prev_mip + oci->mode_info_stride + 1;
 129 #else
 130     oci->prev_mip = NULL;
 131     oci->prev_mi = NULL;
 132 #endif
 133
 134     oci->above_context = vpx_calloc(sizeof(ENTROPY_CONTEXT_PLANES) * oci->mb_cols, 1);
 135
 136     if (!oci->above_context)
 137     {
 138         vp8_de_alloc_frame_buffers(oci);
 139         return 1;
 140     }
 141
 142     update_mode_info_border(oci->mi, oci->mb_rows, oci->mb_cols);
 143 #if CONFIG_ERROR_CONCEALMENT
 144     update_mode_info_border(oci->prev_mi, oci->mb_rows, oci->mb_cols);
 145 #endif
 146
 147     return 0;
 148 }
 149 void vp8_setup_version(VP8_COMMON *cm)
 150 {
 151     switch (cm->version)
 152     {
 153     case 0:
 154         cm->no_lpf = 0;
 155         cm->filter_type = NORMAL_LOOPFILTER;
 156         cm->use_bilinear_mc_filter = 0;
 157         cm->full_pixel = 0;
 158         break;
 159     case 1:
 160         cm->no_lpf = 0;
 161         cm->filter_type = SIMPLE_LOOPFILTER;
 162         cm->use_bilinear_mc_filter = 1;
 163         cm->full_pixel = 0;
 164         break;
 165     case 2:
 166         cm->no_lpf = 1;
 167         cm->filter_type = NORMAL_LOOPFILTER;
 168         cm->use_bilinear_mc_filter = 1;
 169         cm->full_pixel = 0;
 170         break;
 171     case 3:
 172         cm->no_lpf = 1;
 173         cm->filter_type = SIMPLE_LOOPFILTER;
 174         cm->use_bilinear_mc_filter = 1;
 175         cm->full_pixel = 1;
 176         break;
 177     default:
 178         /*4,5,6,7 are reserved for future use*/
 179         cm->no_lpf = 0;
 180         cm->filter_type = NORMAL_LOOPFILTER;
 181         cm->use_bilinear_mc_filter = 0;
 182         cm->full_pixel = 0;
 183         break;
 184     }
 185 }
 186 void vp8_create_common(VP8_COMMON *oci)
 187 {
 188     vp8_machine_specific_config(oci);
 189     vp8_default_coef_probs(oci);
 190     vp8_init_mbmode_probs(oci);
 191     vp8_default_bmode_probs(oci->fc.bmode_prob);
 192
 193     oci->mb_no_coeff_skip = 1;
 194     oci->no_lpf = 0;
 195     oci->filter_type = NORMAL_LOOPFILTER;
 196     oci->use_bilinear_mc_filter = 0;
 197     oci->full_pixel = 0;
 198     oci->multi_token_partition = ONE_PARTITION;
 199     oci->clr_type = REG_YUV;
 200     oci->clamp_type = RECON_CLAMP_REQUIRED;
 201
 202     /* Initialise reference frame sign bias structure to defaults */
 203     vpx_memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias));
 204
 205     /* Default disable buffer to buffer copying */
 206     oci->copy_buffer_to_gf = 0;
 207     oci->copy_buffer_to_arf = 0;
 208 }
 209
 210 void vp8_remove_common(VP8_COMMON *oci)
 211 {
 212     vp8_de_alloc_frame_buffers(oci);
 213 }
 214
 215 void vp8_initialize_common()
 216 {
 217     vp8_coef_tree_initialize();
 218
 219     vp8_entropy_mode_init();
 220
 221     vp8_init_scan_order_mask();
 222
 223 }