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 #include "vpxerrors.h"
  20
  21
  22 extern  void vp8_init_scan_order_mask();
  23
  24 void vp8_update_mode_info_border(MODE_INFO *mi, int rows, int cols)
  25 {
  26     int i;
  27     vpx_memset(mi - cols - 2, 0, sizeof(MODE_INFO) * (cols + 1));
  28
  29     for (i = 0; i < rows; i++)
  30     {
  31         vpx_memset(&mi[i*cols-1], 0, sizeof(MODE_INFO));
  32     }
  33 }
  34
  35 void vp8_de_alloc_frame_buffers(VP8_COMMON *oci)
  36 {
  37     int i;
  38
  39     for (i = 0; i < NUM_YV12_BUFFERS; i++)
  40         vp8_yv12_de_alloc_frame_buffer(&oci->yv12_fb[i]);
  41
  42     vp8_yv12_de_alloc_frame_buffer(&oci->temp_scale_frame);
  43     vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer);
  44
  45     vpx_free(oci->above_context);
  46     vpx_free(oci->mip);
  47
  48     oci->above_context = 0;
  49     oci->mip = 0;
  50
  51 }
  52
  53 int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height)
  54 {
  55     int i;
  56
  57     vp8_de_alloc_frame_buffers(oci);
  58
  59     /* our internal buffers are always multiples of 16 */
  60     if ((width & 0xf) != 0)
  61         width += 16 - (width & 0xf);
  62
  63     if ((height & 0xf) != 0)
  64         height += 16 - (height & 0xf);
  65
  66
  67     for (i = 0; i < NUM_YV12_BUFFERS; i++)
  68     {
  69       oci->fb_idx_ref_cnt[0] = 0;
  70
  71       if (vp8_yv12_alloc_frame_buffer(&oci->yv12_fb[i],  width, height, VP8BORDERINPIXELS) < 0)
  72         {
  73             vp8_de_alloc_frame_buffers(oci);
  74             return ALLOC_FAILURE;
  75         }
  76     }
  77
  78     oci->new_fb_idx = 0;
  79     oci->lst_fb_idx = 1;
  80     oci->gld_fb_idx = 2;
  81     oci->alt_fb_idx = 3;
  82
  83     oci->fb_idx_ref_cnt[0] = 1;
  84     oci->fb_idx_ref_cnt[1] = 1;
  85     oci->fb_idx_ref_cnt[2] = 1;
  86     oci->fb_idx_ref_cnt[3] = 1;
  87
  88     if (vp8_yv12_alloc_frame_buffer(&oci->temp_scale_frame,   width, 16, VP8BORDERINPIXELS) < 0)
  89     {
  90         vp8_de_alloc_frame_buffers(oci);
  91         return ALLOC_FAILURE;
  92     }
  93
  94     if (vp8_yv12_alloc_frame_buffer(&oci->post_proc_buffer, width, height, VP8BORDERINPIXELS) < 0)
  95     {
  96         vp8_de_alloc_frame_buffers(oci);
  97         return ALLOC_FAILURE;
  98     }
  99
 100     oci->mb_rows = height >> 4;
 101     oci->mb_cols = width >> 4;
 102     oci->MBs = oci->mb_rows * oci->mb_cols;
 103     oci->mode_info_stride = oci->mb_cols + 1;
 104     oci->mip = vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO));
 105
 106     if (!oci->mip)
 107     {
 108         vp8_de_alloc_frame_buffers(oci);
 109         return ALLOC_FAILURE;
 110     }
 111
 112     oci->mi = oci->mip + oci->mode_info_stride + 1;
 113
 114
 115     oci->above_context = vpx_calloc(sizeof(ENTROPY_CONTEXT_PLANES) * oci->mb_cols, 1);
 116
 117     if (!oci->above_context)
 118     {
 119         vp8_de_alloc_frame_buffers(oci);
 120         return ALLOC_FAILURE;
 121     }
 122
 123     vp8_update_mode_info_border(oci->mi, oci->mb_rows, oci->mb_cols);
 124
 125     return 0;
 126 }
 127 void vp8_setup_version(VP8_COMMON *cm)
 128 {
 129     switch (cm->version)
 130     {
 131     case 0:
 132         cm->no_lpf = 0;
 133         cm->simpler_lpf = 0;
 134         cm->use_bilinear_mc_filter = 0;
 135         cm->full_pixel = 0;
 136         break;
 137     case 1:
 138         cm->no_lpf = 0;
 139         cm->simpler_lpf = 1;
 140         cm->use_bilinear_mc_filter = 1;
 141         cm->full_pixel = 0;
 142         break;
 143     case 2:
 144         cm->no_lpf = 1;
 145         cm->simpler_lpf = 0;
 146         cm->use_bilinear_mc_filter = 1;
 147         cm->full_pixel = 0;
 148         break;
 149     case 3:
 150         cm->no_lpf = 1;
 151         cm->simpler_lpf = 1;
 152         cm->use_bilinear_mc_filter = 1;
 153         cm->full_pixel = 1;
 154         break;
 155     default:
 156         /*4,5,6,7 are reserved for future use*/
 157         cm->no_lpf = 0;
 158         cm->simpler_lpf = 0;
 159         cm->use_bilinear_mc_filter = 0;
 160         cm->full_pixel = 0;
 161         break;
 162     }
 163 }
 164 void vp8_create_common(VP8_COMMON *oci)
 165 {
 166     vp8_machine_specific_config(oci);
 167     vp8_default_coef_probs(oci);
 168     vp8_init_mbmode_probs(oci);
 169     vp8_default_bmode_probs(oci->fc.bmode_prob);
 170
 171     oci->mb_no_coeff_skip = 1;
 172     oci->no_lpf = 0;
 173     oci->simpler_lpf = 0;
 174     oci->use_bilinear_mc_filter = 0;
 175     oci->full_pixel = 0;
 176     oci->multi_token_partition = ONE_PARTITION;
 177     oci->clr_type = REG_YUV;
 178     oci->clamp_type = RECON_CLAMP_REQUIRED;
 179
 180     /* Initialise reference frame sign bias structure to defaults */
 181     vpx_memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias));
 182
 183     /* Default disable buffer to buffer copying */
 184     oci->copy_buffer_to_gf = 0;
 185     oci->copy_buffer_to_arf = 0;
 186 }
 187
 188 void vp8_remove_common(VP8_COMMON *oci)
 189 {
 190     vp8_de_alloc_frame_buffers(oci);
 191 }
 192
 193 void vp8_initialize_common()
 194 {
 195     vp8_coef_tree_initialize();
 196
 197     vp8_entropy_mode_init();
 198
 199     vp8_init_scan_order_mask();
 200
 201 }