1 files changed, 73 insertions, 0 deletions
diff --git a/compiler/ann-ref/src/ops/Reshape.cpp b/compiler/ann-ref/src/ops/Reshape.cpp
new file mode 100644
index 000000000..a88e81ae4
--- /dev/null
+++ b/compiler/ann-ref/src/ops/Reshape.cpp
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#include "Reshape.h"
+#include "Operand.h"
+#include "Assert.h"
+
+#include <cstring>
+
+bool reshapePrepare(const Shape &input, const int32_t *targetDims, const int32_t targetDimsSize,
+                    Shape *output)
+{
+  // Reshape allows one of the targetDims components to have the
+  // special -1 value, meaning it will be calculated automatically based on the
+  // input. Here we calculate what that dimension should be so that the number
+  // of output elements in the same as the number of input elements.
+  int32_t numInputElements = (int32_t)getNumberOfElements(input);
+
+  std::vector<uint32_t> outDims(targetDimsSize);
+  int32_t numOutputElements = 1;
+  int32_t strechDim = -1;
+  for (int32_t i = 0; i < targetDimsSize; ++i)
+  {
+    int32_t value = targetDims[i];
+    if (value == -1)
+    {
+      ASSERT(strechDim == -1);
+      strechDim = i;
+    }
+    else
+    {
+      numOutputElements *= value;
+      outDims[i] = (uint32_t)value;
+    }
+  }
+  if (strechDim != -1)
+  {
+    int32_t strechValue = numInputElements / numOutputElements;
+    outDims[strechDim] = (uint32_t)strechValue;
+    numOutputElements *= strechValue;
+  }
+
+  ASSERT(numInputElements == numOutputElements);
+
+  output->type = input.type;
+  output->dimensions = outDims;
+  output->offset = input.offset;
+  output->scale = input.scale;
+
+  return true;
+}
+
+bool reshapeGeneric(const void *inputData, const Shape &inputShape, void *outputData,
+                    const Shape &outputShape)
+{
+  size_t count = sizeOfData(inputShape.type, inputShape.dimensions);
+  memcpy(outputData, inputData, count);
+  return true;
+}