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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 "vpx_mem/vpx_mem.h"
#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_entropymv.h"
#include "vp9/common/vp9_findnearmv.h"
#include "vp9/common/vp9_onyxc_int.h"
#include "vp9/common/vp9_systemdependent.h"
void vp9_update_mode_info_border(VP9_COMMON *cm, MODE_INFO *mi) {
const int stride = cm->mode_info_stride;
int i;
// Clear down top border row
vpx_memset(mi, 0, sizeof(MODE_INFO) * stride);
// Clear left border column
for (i = 1; i < cm->mi_rows + 1; i++)
vpx_memset(&mi[i * stride], 0, sizeof(MODE_INFO));
}
void vp9_update_mode_info_in_image(VP9_COMMON *cm, MODE_INFO *mi) {
int i, j;
// For each in image mode_info element set the in image flag to 1
for (i = 0; i < cm->mi_rows; i++) {
MODE_INFO *ptr = mi;
for (j = 0; j < cm->mi_cols; j++) {
ptr->mbmi.mb_in_image = 1;
ptr++; // Next element in the row
}
// Step over border element at start of next row
mi += cm->mode_info_stride;
}
}
void vp9_free_frame_buffers(VP9_COMMON *oci) {
int i;
for (i = 0; i < NUM_YV12_BUFFERS; i++)
vp9_free_frame_buffer(&oci->yv12_fb[i]);
vp9_free_frame_buffer(&oci->temp_scale_frame);
vp9_free_frame_buffer(&oci->post_proc_buffer);
vpx_free(oci->mip);
vpx_free(oci->prev_mip);
vpx_free(oci->above_seg_context);
vpx_free(oci->above_context[0]);
for (i = 0; i < MAX_MB_PLANE; i++)
oci->above_context[i] = 0;
oci->mip = 0;
oci->prev_mip = 0;
oci->above_seg_context = 0;
}
static void set_mb_mi(VP9_COMMON *cm, int aligned_width, int aligned_height) {
cm->mb_cols = (aligned_width + 8) >> 4;
cm->mb_rows = (aligned_height + 8) >> 4;
cm->MBs = cm->mb_rows * cm->mb_cols;
cm->mi_cols = aligned_width >> LOG2_MI_SIZE;
cm->mi_rows = aligned_height >> LOG2_MI_SIZE;
cm->mode_info_stride = cm->mi_cols + 64 / MI_SIZE;
}
static void setup_mi(VP9_COMMON *cm) {
cm->mi = cm->mip + cm->mode_info_stride + 1;
cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1;
vpx_memset(cm->mip, 0,
cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));
vp9_update_mode_info_border(cm, cm->mip);
vp9_update_mode_info_in_image(cm, cm->mi);
vp9_update_mode_info_border(cm, cm->prev_mip);
vp9_update_mode_info_in_image(cm, cm->prev_mi);
}
int vp9_alloc_frame_buffers(VP9_COMMON *oci, int width, int height) {
int i, mi_cols;
// Our internal buffers are always multiples of 16
const int aligned_width = multiple8(width);
const int aligned_height = multiple8(height);
const int ss_x = oci->subsampling_x;
const int ss_y = oci->subsampling_y;
vp9_free_frame_buffers(oci);
for (i = 0; i < NUM_YV12_BUFFERS; i++) {
oci->fb_idx_ref_cnt[i] = 0;
if (vp9_alloc_frame_buffer(&oci->yv12_fb[i], width, height, ss_x, ss_y,
VP9BORDERINPIXELS) < 0)
goto fail;
}
oci->new_fb_idx = NUM_YV12_BUFFERS - 1;
oci->fb_idx_ref_cnt[oci->new_fb_idx] = 1;
for (i = 0; i < ALLOWED_REFS_PER_FRAME; i++)
oci->active_ref_idx[i] = i;
for (i = 0; i < NUM_REF_FRAMES; i++) {
oci->ref_frame_map[i] = i;
oci->fb_idx_ref_cnt[i] = 1;
}
if (vp9_alloc_frame_buffer(&oci->temp_scale_frame, width, 16, ss_x, ss_y,
VP9BORDERINPIXELS) < 0)
goto fail;
if (vp9_alloc_frame_buffer(&oci->post_proc_buffer, width, height, ss_x, ss_y,
VP9BORDERINPIXELS) < 0)
goto fail;
set_mb_mi(oci, aligned_width, aligned_height);
// Allocation
oci->mip = vpx_calloc(oci->mode_info_stride * (oci->mi_rows + 64 / MI_SIZE),
sizeof(MODE_INFO));
if (!oci->mip)
goto fail;
oci->prev_mip = vpx_calloc(oci->mode_info_stride *
(oci->mi_rows + 64 / MI_SIZE),
sizeof(MODE_INFO));
if (!oci->prev_mip)
goto fail;
setup_mi(oci);
// FIXME(jkoleszar): allocate subsampled arrays for U/V once subsampling
// information is exposed at this level
mi_cols = mi_cols_aligned_to_sb(oci);
// 2 contexts per 'mi unit', so that we have one context per 4x4 txfm
// block where mi unit size is 8x8.
# if CONFIG_ALPHA
oci->above_context[0] = vpx_calloc(sizeof(ENTROPY_CONTEXT) * 8 * mi_cols, 1);
#else
oci->above_context[0] = vpx_calloc(sizeof(ENTROPY_CONTEXT) * 6 * mi_cols, 1);
#endif
if (!oci->above_context[0])
goto fail;
for (i = 1; i < MAX_MB_PLANE; i++)
oci->above_context[i] =
oci->above_context[0] + i * sizeof(ENTROPY_CONTEXT) * 2 * mi_cols;
oci->above_seg_context = vpx_calloc(sizeof(PARTITION_CONTEXT) * mi_cols, 1);
if (!oci->above_seg_context)
goto fail;
return 0;
fail:
vp9_free_frame_buffers(oci);
return 1;
}
void vp9_create_common(VP9_COMMON *oci) {
vp9_machine_specific_config(oci);
vp9_init_mbmode_probs(oci);
oci->txfm_mode = ONLY_4X4;
oci->comp_pred_mode = HYBRID_PREDICTION;
oci->clr_type = REG_YUV;
// Initialize reference frame sign bias structure to defaults
vpx_memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias));
}
void vp9_remove_common(VP9_COMMON *oci) {
vp9_free_frame_buffers(oci);
}
void vp9_initialize_common() {
vp9_coef_tree_initialize();
vp9_entropy_mode_init();
vp9_entropy_mv_init();
}
void vp9_update_frame_size(VP9_COMMON *cm) {
const int aligned_width = multiple8(cm->width);
const int aligned_height = multiple8(cm->height);
set_mb_mi(cm, aligned_width, aligned_height);
setup_mi(cm);
}
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