/* * Copyright © 2018-2021, 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_IPRED_H #define DAV1D_SRC_IPRED_H #include <stddef.h> #include "common/bitdepth.h" #include "src/levels.h" /* * Intra prediction. * - a is the angle (in degrees) for directional intra predictors. For other * modes, it is ignored; * - topleft is the same as the argument given to dav1d_prepare_intra_edges(), * see ipred_prepare.h for more detailed documentation. */ #define decl_angular_ipred_fn(name) … angular_ipred_fn; /* * Create a subsampled Y plane with the DC subtracted. * - w/h_pad is the edge of the width/height that extends outside the visible * portion of the frame in 4px units; * - ac has a stride of 16. */ #define decl_cfl_ac_fn(name) … cfl_ac_fn; /* * dst[x,y] += alpha * ac[x,y] * - alpha contains a q3 scalar in [-16,16] range; */ #define decl_cfl_pred_fn(name) … cfl_pred_fn; /* * dst[x,y] = pal[idx[x,y]] * - palette indices are [0-7] * - only 16-byte alignment is guaranteed for idx. */ #define decl_pal_pred_fn(name) … pal_pred_fn; Dav1dIntraPredDSPContext; bitfn_decls(…); #endif /* DAV1D_SRC_IPRED_H */
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