1 // Copyright 2015 The Gemmlowp Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // gemmlowp.h: the main public interface header of gemmlowp. 16 17 #ifndef GEMMLOWP_PUBLIC_GEMMLOWP_H_ 18 #define GEMMLOWP_PUBLIC_GEMMLOWP_H_ 19 #include "../internal/dispatch_gemm_shape.h" 20 #include "bit_depth.h" 21 #include "map.h" 22 #include "output_stages.h" 23 24 namespace gemmlowp { 25 26 class GemmContext : public MultiThreadGemmContext {}; 27 28 // Computes a general matrix product ("GEMM"). 29 // This is a version that supports per channel quantization. 30 template <typename InputScalar, typename OutputScalar, typename BitDepthParams, 31 MapOrder LhsOrder, MapOrder RhsOrder, MapOrder ResultOrder, 32 typename LhsOffset, typename RhsOffset, typename OutputPipelineType, 33 typename GemmContextType> 34 void GemmWithOutputPipelinePC(GemmContextType* context, 35 const MatrixMap<const InputScalar, LhsOrder>& lhs, 36 const MatrixMap<const InputScalar, RhsOrder>& rhs, 37 MatrixMap<OutputScalar, ResultOrder>* result, 38 const LhsOffset& lhs_offset, 39 const RhsOffset& rhs_offset, 40 const OutputPipelineType& output_pipeline) { 41 DispatchGemmShape<InputScalar, OutputScalar, BitDepthParams>( 42 context, lhs, rhs, result, lhs_offset, rhs_offset, output_pipeline); 43 } 44 45 // Computes a general matrix product ("GEMM"). 46 // This is the legacy version that does not support per channel quantization. 47 // The meaning of the offsets, result_mult_int and result_shift 48 // parameters is the same as in the standard EightBitIntGemm interface 49 // (which is also implemented in the eight_bit_int_gemm directory). 50 template <typename InputScalar, typename OutputScalar, typename BitDepthParams, 51 MapOrder LhsOrder, MapOrder RhsOrder, MapOrder ResultOrder, 52 typename OutputPipelineType, typename GemmContextType> 53 void GemmWithOutputPipeline(GemmContextType* context, 54 const MatrixMap<const InputScalar, LhsOrder>& lhs, 55 const MatrixMap<const InputScalar, RhsOrder>& rhs, 56 MatrixMap<OutputScalar, ResultOrder>* result, 57 int lhs_offset, int rhs_offset, 58 const OutputPipelineType& output_pipeline) { 59 typedef VectorDup<const std::int32_t, VectorShape::Col> OffsetColDup; 60 typedef VectorDup<const std::int32_t, VectorShape::Row> OffsetRowDup; 61 const OffsetColDup lhs_offset_vector(lhs_offset, lhs.rows()); 62 const OffsetRowDup rhs_offset_vector(rhs_offset, rhs.cols()); 63 DispatchGemmShape<InputScalar, OutputScalar, BitDepthParams>( 64 context, lhs, rhs, result, lhs_offset_vector, rhs_offset_vector, 65 output_pipeline); 66 } 67 68 // Computes a general matrix product ("GEMM"). 69 // The meaning of the offsets, result_mult_int and result_shift 70 // parameters is the same as in the standard EightBitIntGemm interface 71 // (which is also implemented in the eight_bit_int_gemm directory). 72 template <typename Scalar, typename BitDepthParams, MapOrder LhsOrder, 73 MapOrder RhsOrder, MapOrder ResultOrder, typename GemmContextType> 74 void Gemm(GemmContextType* context, 75 const MatrixMap<const Scalar, LhsOrder>& lhs, 76 const MatrixMap<const Scalar, RhsOrder>& rhs, 77 MatrixMap<Scalar, ResultOrder>* result, int lhs_offset, 78 int rhs_offset, int result_offset, int result_mult_int, 79 int result_shift) { 80 GemmWithOutputPipeline<Scalar, Scalar, BitDepthParams>( 81 context, lhs, rhs, result, lhs_offset, rhs_offset, 82 MakeStandardOutputPipeline(result_offset, result_mult_int, result_shift)); 83 } 84 85 } // namespace gemmlowp 86 87 #endif // GEMMLOWP_PUBLIC_GEMMLOWP_H_ 88
