/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this *    list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, *    this list of conditions and the following disclaimer in the documentation *    and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef DAV1D_SRC_LOOPRESTORATION_H#define DAV1D_SRC_LOOPRESTORATION_H #include <stdint.h>#include <stddef.h> #include "common/bitdepth.h" enum LrEdgeFlags {    LR_HAVE_LEFT = 1 << 0,    LR_HAVE_RIGHT = 1 << 1,    LR_HAVE_TOP = 1 << 2,    LR_HAVE_BOTTOM = 1 << 3,}; #ifdef BITDEPTHtypedef const pixel (*const_left_pixel_row)[4];#elsetypedef const void *const_left_pixel_row;#endif // Although the spec applies restoration filters over 4x4 blocks, the wiener// filter can be applied to a bigger surface.//    * w is constrained by the restoration unit size (w <= 256)//    * h is constrained by the stripe height (h <= 64)#define decl_wiener_filter_fn(name) \void (name)(pixel *dst, ptrdiff_t dst_stride, \            const_left_pixel_row left, \            const pixel *lpf, ptrdiff_t lpf_stride, \            int w, int h, const int16_t filter[2][8], \            enum LrEdgeFlags edges HIGHBD_DECL_SUFFIX)typedef decl_wiener_filter_fn(*wienerfilter_fn); #define decl_selfguided_filter_fn(name) \void (name)(pixel *dst, ptrdiff_t dst_stride, \            const_left_pixel_row left, \            const pixel *lpf, ptrdiff_t lpf_stride, \            int w, int h, int sgr_idx, const int16_t sgr_w[2], \            const enum LrEdgeFlags edges HIGHBD_DECL_SUFFIX)typedef decl_selfguided_filter_fn(*selfguided_fn); typedef struct Dav1dLoopRestorationDSPContext {    wienerfilter_fn wiener[2]; /* 7-tap, 5-tap */    selfguided_fn selfguided;} Dav1dLoopRestorationDSPContext; #pragma incomplete Dav1dLoopRestorationDSPContext bitfn_decls(void dav1d_loop_restoration_dsp_init, Dav1dLoopRestorationDSPContext *c, int bpc);bitfn_decls(void dav1d_loop_restoration_dsp_init_arm, Dav1dLoopRestorationDSPContext *c, int bpc);bitfn_decls(void dav1d_loop_restoration_dsp_init_x86, Dav1dLoopRestorationDSPContext *c);bitfn_decls(void dav1d_loop_restoration_dsp_init_ppc, Dav1dLoopRestorationDSPContext *c); #endif /* DAV1D_SRC_LOOPRESTORATION_H */