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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 VPX_VP8_COMMON_LOOPFILTER_H_
#define VPX_VP8_COMMON_LOOPFILTER_H_
#include "vpx_ports/mem.h"
#include "vpx_config.h"
#include "vp8_rtcd.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_LOOP_FILTER 63
/* fraction of total macroblock rows to be used in fast filter level picking */
/* has to be > 2 */
#define PARTIAL_FRAME_FRACTION 8
typedef enum { NORMAL_LOOPFILTER = 0, SIMPLE_LOOPFILTER = 1 } LOOPFILTERTYPE;
#if VPX_ARCH_ARM
#define SIMD_WIDTH 1
#else
#define SIMD_WIDTH 16
#endif
/* Need to align this structure so when it is declared and
* passed it can be loaded into vector registers.
*/
typedef struct {
DECLARE_ALIGNED(SIMD_WIDTH, unsigned char,
mblim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
DECLARE_ALIGNED(SIMD_WIDTH, unsigned char,
blim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
DECLARE_ALIGNED(SIMD_WIDTH, unsigned char,
lim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, hev_thr[4][SIMD_WIDTH]);
unsigned char lvl[4][4][4];
unsigned char hev_thr_lut[2][MAX_LOOP_FILTER + 1];
unsigned char mode_lf_lut[10];
} loop_filter_info_n;
typedef struct loop_filter_info {
const unsigned char *mblim;
const unsigned char *blim;
const unsigned char *lim;
const unsigned char *hev_thr;
} loop_filter_info;
typedef void loop_filter_uvfunction(unsigned char *u, /* source pointer */
int p, /* pitch */
const unsigned char *blimit,
const unsigned char *limit,
const unsigned char *thresh,
unsigned char *v);
/* assorted loopfilter functions which get used elsewhere */
struct VP8Common;
struct macroblockd;
struct modeinfo;
void vp8_loop_filter_init(struct VP8Common *cm);
void vp8_loop_filter_frame_init(struct VP8Common *cm, struct macroblockd *mbd,
int default_filt_lvl);
void vp8_loop_filter_frame(struct VP8Common *cm, struct macroblockd *mbd,
int frame_type);
void vp8_loop_filter_partial_frame(struct VP8Common *cm,
struct macroblockd *mbd,
int default_filt_lvl);
void vp8_loop_filter_frame_yonly(struct VP8Common *cm, struct macroblockd *mbd,
int default_filt_lvl);
void vp8_loop_filter_update_sharpness(loop_filter_info_n *lfi,
int sharpness_lvl);
void vp8_loop_filter_row_normal(struct VP8Common *cm,
struct modeinfo *mode_info_context, int mb_row,
int post_ystride, int post_uvstride,
unsigned char *y_ptr, unsigned char *u_ptr,
unsigned char *v_ptr);
void vp8_loop_filter_row_simple(struct VP8Common *cm,
struct modeinfo *mode_info_context, int mb_row,
int post_ystride, unsigned char *y_ptr);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VPX_VP8_COMMON_LOOPFILTER_H_
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