ref: 8050e0219fae86e4b0603904b576adf4d7f39d35
dir: /vp8/common/alloccommon.c/
/*
* 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"
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;
memset(&oci->postproc_state, 0, sizeof(oci->postproc_state));
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);
}