summaryrefslogtreecommitdiff
path: root/runtimes/pure_arm_compute/src/internal/arm_compute/feature/View.h
diff options
context:
space:
mode:
Diffstat (limited to 'runtimes/pure_arm_compute/src/internal/arm_compute/feature/View.h')
-rw-r--r--runtimes/pure_arm_compute/src/internal/arm_compute/feature/View.h99
1 files changed, 99 insertions, 0 deletions
diff --git a/runtimes/pure_arm_compute/src/internal/arm_compute/feature/View.h b/runtimes/pure_arm_compute/src/internal/arm_compute/feature/View.h
new file mode 100644
index 000000000..9d19021ae
--- /dev/null
+++ b/runtimes/pure_arm_compute/src/internal/arm_compute/feature/View.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2018 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 __INTERNAL_ARM_COMPUTE_FEATURE_VIEW_H__
+#define __INTERNAL_ARM_COMPUTE_FEATURE_VIEW_H__
+
+#include "util/feature/Reader.h"
+
+#include <arm_compute/core/ITensor.h>
+
+namespace internal
+{
+namespace arm_compute
+{
+namespace feature
+{
+
+template <typename T> class View final : public nnfw::util::feature::Reader<T>
+{
+public:
+ View(::arm_compute::ITensor *tensor) : _tensor{tensor}
+ {
+ // DO NOTHING
+ }
+
+public:
+ T at(uint32_t ch, uint32_t row, uint32_t col) const override
+ {
+ const auto offset = feature_index_to_byte_offset(ch, row, col);
+
+ T *ptr = reinterpret_cast<T *>(_tensor->buffer() + offset);
+
+ return *ptr;
+ }
+
+ T at(uint32_t batch, uint32_t ch, uint32_t row, uint32_t col) const override
+ {
+ const auto offset = feature_index_to_byte_offset(batch, ch, row, col);
+
+ T *ptr = reinterpret_cast<T *>(_tensor->buffer() + offset);
+
+ return *ptr;
+ }
+
+public:
+ T &at(uint32_t ch, uint32_t row, uint32_t col)
+ {
+ const auto offset = feature_index_to_byte_offset(ch, row, col);
+
+ T *ptr = reinterpret_cast<T *>(_tensor->buffer() + offset);
+
+ return *ptr;
+ }
+
+ T &at(uint32_t batch, uint32_t ch, uint32_t row, uint32_t col)
+ {
+ const auto offset = feature_index_to_byte_offset(batch, ch, row, col);
+
+ T *ptr = reinterpret_cast<T *>(_tensor->buffer() + offset);
+
+ return *ptr;
+ }
+
+private:
+ size_t feature_index_to_byte_offset(uint32_t ch, uint32_t row, uint32_t col) const
+ {
+ // ARM Compute uses CHW ordering
+ return _tensor->info()->offset_element_in_bytes(::arm_compute::Coordinates{col, row, ch});
+ }
+
+ size_t feature_index_to_byte_offset(uint32_t batch, uint32_t ch, uint32_t row, uint32_t col) const
+ {
+ // ARM Compute uses CHW ordering
+ return _tensor->info()->offset_element_in_bytes(
+ ::arm_compute::Coordinates{col, row, ch, batch});
+ }
+
+private:
+ ::arm_compute::ITensor *_tensor;
+};
+
+} // namespace feature
+} // namespace arm_compute
+} // namespace internal
+
+#endif // __INTERNAL_ARM_COMPUTE_FEATURE_VIEW_H__