chromium/third_party/libvpx/source/libvpx/vp9/decoder/vp9_detokenize.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_mem/vpx_mem.h"
#include "vpx_ports/mem.h"

#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_entropy.h"
#if CONFIG_COEFFICIENT_RANGE_CHECKING
#include "vp9/common/vp9_idct.h"
#endif

#include "vp9/decoder/vp9_detokenize.h"

#define EOB_CONTEXT_NODE …
#define ZERO_CONTEXT_NODE …
#define ONE_CONTEXT_NODE …

#define INCREMENT_COUNT(token) …

static INLINE int read_bool(vpx_reader *r, int prob, BD_VALUE *value,
                            int *count, unsigned int *range) { … }

static INLINE int read_coeff(vpx_reader *r, const vpx_prob *probs, int n,
                             BD_VALUE *value, int *count, unsigned int *range) { … }

static int decode_coefs(const MACROBLOCKD *xd, PLANE_TYPE type,
                        tran_low_t *dqcoeff, TX_SIZE tx_size, const int16_t *dq,
                        int ctx, const int16_t *scan, const int16_t *nb,
                        vpx_reader *r) { … }

static void get_ctx_shift(MACROBLOCKD *xd, int *ctx_shift_a, int *ctx_shift_l,
                          int x, int y, unsigned int tx_size_in_blocks) { … }

int vp9_decode_block_tokens(TileWorkerData *twd, int plane, const ScanOrder *sc,
                            int x, int y, TX_SIZE tx_size, int seg_id) { … }