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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.
*/
#ifndef VP9_DECODER_VP9_TREEREADER_H_
#define VP9_DECODER_VP9_TREEREADER_H_
#include "vp9/common/vp9_treecoder.h"
#include "vp9/decoder/vp9_dboolhuff.h"
#define vp9_read_and_apply_sign(r, value) (vp9_read_bit(r) ? -(value) : (value))
// Intent of tree data structure is to make decoding trivial.
static int treed_read(vp9_reader *const r, /* !!! must return a 0 or 1 !!! */
vp9_tree t,
const vp9_prob *const p) {
register vp9_tree_index i = 0;
while ((i = t[ i + vp9_read(r, p[i >> 1])]) > 0)
continue;
return -i;
}
#endif // VP9_DECODER_VP9_TREEREADER_H_
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