tor-browser

The Tor Browser
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pal.h (2082B)


      1 /*
      2 * Copyright © 2023, VideoLAN and dav1d authors
      3 * Copyright © 2023, 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 #include "src/cpu.h"
     29 
     30 decl_pal_idx_finish_fn(dav1d_pal_idx_finish_ssse3);
     31 decl_pal_idx_finish_fn(dav1d_pal_idx_finish_avx2);
     32 decl_pal_idx_finish_fn(dav1d_pal_idx_finish_avx512icl);
     33 
     34 static ALWAYS_INLINE void pal_dsp_init_x86(Dav1dPalDSPContext *const c) {
     35    const unsigned flags = dav1d_get_cpu_flags();
     36 
     37    if (!(flags & DAV1D_X86_CPU_FLAG_SSSE3)) return;
     38 
     39    c->pal_idx_finish = dav1d_pal_idx_finish_ssse3;
     40 
     41 #if ARCH_X86_64
     42    if (!(flags & DAV1D_X86_CPU_FLAG_AVX2)) return;
     43 
     44    c->pal_idx_finish = dav1d_pal_idx_finish_avx2;
     45 
     46    if (!(flags & DAV1D_X86_CPU_FLAG_AVX512ICL)) return;
     47 
     48    c->pal_idx_finish = dav1d_pal_idx_finish_avx512icl;
     49 #endif
     50 }