chromium/third_party/libvpx/source/libvpx/vp9/common/vp9_seg_common.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 <assert.h>

#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_loopfilter.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/common/vp9_quant_common.h"

static const int seg_feature_data_signed[SEG_LVL_MAX] = …;

static const int seg_feature_data_max[SEG_LVL_MAX] = …;

// These functions provide access to new segment level features.
// Eventually these function may be "optimized out" but for the moment,
// the coding mechanism is still subject to change so these provide a
// convenient single point of change.

void vp9_clearall_segfeatures(struct segmentation *seg) { … }

void vp9_enable_segfeature(struct segmentation *seg, int segment_id,
                           SEG_LVL_FEATURES feature_id) { … }

int vp9_seg_feature_data_max(SEG_LVL_FEATURES feature_id) { … }

int vp9_is_segfeature_signed(SEG_LVL_FEATURES feature_id) { … }

void vp9_set_segdata(struct segmentation *seg, int segment_id,
                     SEG_LVL_FEATURES feature_id, int seg_data) { … }

const vpx_tree_index vp9_segment_tree[TREE_SIZE(MAX_SEGMENTS)] = …;

// TBD? Functions to read and write segment data with range / validity checking