/* *  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 __cplusplusextern "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_