tor-browser

The Tor Browser
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cdef.h (2790B)


      1 /*
      2 * Copyright © 2018, VideoLAN and dav1d authors
      3 * Copyright © 2018, Two Orioles, LLC
      4 * All rights reserved.
      5 *
      6 * Redistribution and use in source and binary forms, with or without
      7 * modification, are permitted provided that the following conditions are met:
      8 *
      9 * 1. Redistributions of source code must retain the above copyright notice, this
     10 *    list of conditions and the following disclaimer.
     11 *
     12 * 2. Redistributions in binary form must reproduce the above copyright notice,
     13 *    this list of conditions and the following disclaimer in the documentation
     14 *    and/or other materials provided with the distribution.
     15 *
     16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
     20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26 */
     27 
     28 #ifndef DAV1D_SRC_CDEF_H
     29 #define DAV1D_SRC_CDEF_H
     30 
     31 #include <stddef.h>
     32 #include <stdint.h>
     33 
     34 #include "common/bitdepth.h"
     35 
     36 enum CdefEdgeFlags {
     37    CDEF_HAVE_LEFT = 1 << 0,
     38    CDEF_HAVE_RIGHT = 1 << 1,
     39    CDEF_HAVE_TOP = 1 << 2,
     40    CDEF_HAVE_BOTTOM = 1 << 3,
     41 };
     42 
     43 #ifdef BITDEPTH
     44 typedef const pixel (*const_left_pixel_row_2px)[2];
     45 #else
     46 typedef const void *const_left_pixel_row_2px;
     47 #endif
     48 
     49 // CDEF operates entirely on pre-filter data; if bottom/right edges are
     50 // present (according to $edges), then the pre-filter data is located in
     51 // $dst. However, the edge pixels above $dst may be post-filter, so in
     52 // order to get access to pre-filter top pixels, use $top.
     53 #define decl_cdef_fn(name) \
     54 void (name)(pixel *dst, ptrdiff_t stride, const_left_pixel_row_2px left, \
     55            const pixel *top, const pixel *bottom, \
     56            int pri_strength, int sec_strength, \
     57            int dir, int damping, enum CdefEdgeFlags edges HIGHBD_DECL_SUFFIX)
     58 typedef decl_cdef_fn(*cdef_fn);
     59 
     60 #define decl_cdef_dir_fn(name) \
     61 int (name)(const pixel *dst, ptrdiff_t dst_stride, unsigned *var HIGHBD_DECL_SUFFIX)
     62 typedef decl_cdef_dir_fn(*cdef_dir_fn);
     63 
     64 typedef struct Dav1dCdefDSPContext {
     65    cdef_dir_fn dir;
     66    cdef_fn fb[3 /* 444/luma, 422, 420 */];
     67 } Dav1dCdefDSPContext;
     68 
     69 bitfn_decls(void dav1d_cdef_dsp_init, Dav1dCdefDSPContext *c);
     70 
     71 #endif /* DAV1D_SRC_CDEF_H */