/* *  Copyright (c) 2010 The VP8 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_ports/config.h"#include "blockd.h"#include "vpx_mem/vpx_mem.h"#include "onyxc_int.h"#include "findnearmv.h"#include "entropymode.h"#include "systemdependent.h"#include "vpxerrors.h"  extern  void vp8_init_scan_order_mask(); void vp8_update_mode_info_border(MODE_INFO *mi, int rows, int cols){    int i;    vpx_memset(mi - cols - 2, 0, sizeof(MODE_INFO) * (cols + 1));     for (i = 0; i < rows; i++)    {        vpx_memset(&mi[i*cols-1], 0, sizeof(MODE_INFO));    }} 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);    vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer);     vpx_free(oci->above_context);    vpx_free(oci->mip);     oci->above_context = 0;    oci->mip = 0; } 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[0] = 0;       if (vp8_yv12_alloc_frame_buffer(&oci->yv12_fb[i],  width, height, VP8BORDERINPIXELS) < 0)        {            vp8_de_alloc_frame_buffers(oci);            return ALLOC_FAILURE;        }    }     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)    {        vp8_de_alloc_frame_buffers(oci);        return ALLOC_FAILURE;    }     if (vp8_yv12_alloc_frame_buffer(&oci->post_proc_buffer, width, height, VP8BORDERINPIXELS) < 0)    {        vp8_de_alloc_frame_buffers(oci);        return ALLOC_FAILURE;    }     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)    {        vp8_de_alloc_frame_buffers(oci);        return ALLOC_FAILURE;    }     oci->mi = oci->mip + oci->mode_info_stride + 1;      oci->above_context = vpx_calloc(sizeof(ENTROPY_CONTEXT_PLANES) * oci->mb_cols, 1);     if (!oci->above_context)    {        vp8_de_alloc_frame_buffers(oci);        return ALLOC_FAILURE;    }     vp8_update_mode_info_border(oci->mi, oci->mb_rows, oci->mb_cols);     return 0;}void vp8_setup_version(VP8_COMMON *cm){    switch (cm->version)    {    case 0:        cm->no_lpf = 0;        cm->simpler_lpf = 0;        cm->use_bilinear_mc_filter = 0;        cm->full_pixel = 0;        break;    case 1:        cm->no_lpf = 0;        cm->simpler_lpf = 1;        cm->use_bilinear_mc_filter = 1;        cm->full_pixel = 0;        break;    case 2:        cm->no_lpf = 1;        cm->simpler_lpf = 0;        cm->use_bilinear_mc_filter = 1;        cm->full_pixel = 0;        break;    case 3:        cm->no_lpf = 1;        cm->simpler_lpf = 1;        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->simpler_lpf = 0;        cm->use_bilinear_mc_filter = 0;        cm->full_pixel = 0;        break;    }}void vp8_create_common(VP8_COMMON *oci){    vp8_machine_specific_config(oci);    vp8_default_coef_probs(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->simpler_lpf = 0;    oci->use_bilinear_mc_filter = 0;    oci->full_pixel = 0;    oci->multi_token_partition = ONE_PARTITION;    oci->clr_type = REG_YUV;    oci->clamp_type = RECON_CLAMP_REQUIRED;     // Initialise 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);} void vp8_initialize_common(){    vp8_coef_tree_initialize();     vp8_entropy_mode_init();     vp8_init_scan_order_mask(); }