1 files changed, 72 insertions, 0 deletions
diff --git a/runtimes/libs/srcn/src/conv_winograd.h b/runtimes/libs/srcn/src/conv_winograd.h
new file mode 100644
index 000000000..d478f943c
--- /dev/null
+++ b/runtimes/libs/srcn/src/conv_winograd.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __NNFW_SRCN_CONV_WINOGRAD_H__
+#define __NNFW_SRCN_CONV_WINOGRAD_H__
+
+#include "srcn/conv_type.h"
+#include "winograd.h"
+#include "sgemm_singlethread.h"
+
+namespace nnfw
+{
+namespace srcn
+{
+
+class conv_winograd
+{
+public:
+  conv_winograd(const convMat_t &in_mat, convMat_t &out_mat, const convParams_t &in_param,
+                convType_t conv_type, const float *winograd_weight, int num_threads, int inc_stride,
+                int outc_stride, int c_stride);
+  ~conv_winograd();
+
+  void run();
+
+private:
+  void param_init();
+  void compute_sgemm(sgemmType_t major_type, sgemmTrans_t ltrans, sgemmTrans_t rtrans, const int m,
+                     const int n, const int k, const float *lhs_data, const float *rhs_data,
+                     float *res_data);
+  void winograd_input_im2col(float *col_buff);
+  void winograd_output_col2im(const float *col_buff);
+  void compute_winograd();
+
+  const convMat_t in_mat_;
+  convMat_t out_mat_;
+  const convParams_t in_param_;
+  convType_t conv_type_;
+  const float *winograd_weight_;
+  const int num_threads_;
+
+  int tile_w_in_;
+  int tile_h_in_;
+  int tile_w_out_;
+  int tile_h_out_;
+  int ntiles_w_;
+  int ntiles_h_;
+
+  int inc_stride_;
+  int outc_stride_;
+  int c_stride_;
+
+  int error_;
+};
+
+} // namespace srcn
+} // namespace nnfw
+
+#endif // __NNFW_SRCN_CONV_WINOGRAD_H__