1 /* 2 * Copyright 2019 The libgav1 Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef LIBGAV1_SRC_DSP_LOOP_RESTORATION_H_ 18 #define LIBGAV1_SRC_DSP_LOOP_RESTORATION_H_ 19 20 // Pull in LIBGAV1_DspXXX defines representing the implementation status 21 // of each function. The resulting value of each can be used by each module to 22 // determine whether an implementation is needed at compile time. 23 // IWYU pragma: begin_exports 24 25 // ARM: 26 #include "src/dsp/arm/loop_restoration_neon.h" 27 28 // x86: 29 // Note includes should be sorted in logical order avx2/avx/sse4, etc. 30 // The order of includes is important as each tests for a superior version 31 // before setting the base. 32 // clang-format off 33 #include "src/dsp/x86/loop_restoration_avx2.h" 34 #include "src/dsp/x86/loop_restoration_sse4.h" 35 // clang-format on 36 37 // IWYU pragma: end_exports 38 39 namespace libgav1 { 40 namespace dsp { 41 42 extern const uint8_t kSgrMaLookup[256]; 43 44 // Initializes Dsp::loop_restorations. This function is not thread-safe. 45 void LoopRestorationInit_C(); 46 47 template <typename T> Circulate3PointersBy1(T * p[3])48void Circulate3PointersBy1(T* p[3]) { 49 T* const p0 = p[0]; 50 p[0] = p[1]; 51 p[1] = p[2]; 52 p[2] = p0; 53 } 54 55 template <typename T> Circulate4PointersBy2(T * p[4])56void Circulate4PointersBy2(T* p[4]) { 57 std::swap(p[0], p[2]); 58 std::swap(p[1], p[3]); 59 } 60 61 template <typename T> Circulate5PointersBy2(T * p[5])62void Circulate5PointersBy2(T* p[5]) { 63 T* const p0 = p[0]; 64 T* const p1 = p[1]; 65 p[0] = p[2]; 66 p[1] = p[3]; 67 p[2] = p[4]; 68 p[3] = p0; 69 p[4] = p1; 70 } 71 72 } // namespace dsp 73 } // namespace libgav1 74 75 #endif // LIBGAV1_SRC_DSP_LOOP_RESTORATION_H_ 76