COMPMID-448: Implement CL Quantization/Dequantization Layer.

Change-Id: Id002e23a2ac48af3d245416dc6411d9a04a1e513
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/81827
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/arm_compute/runtime/CL/functions/CLQuantizationLayer.h b/arm_compute/runtime/CL/functions/CLQuantizationLayer.h
new file mode 100644
index 0000000000..b3c4da05d4
--- /dev/null
+++ b/arm_compute/runtime/CL/functions/CLQuantizationLayer.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_CLQUANTIZATIONLAYER_H__
+#define __ARM_COMPUTE_CLQUANTIZATIONLAYER_H__
+
+#include "arm_compute/runtime/IFunction.h"
+
+#include "arm_compute/core/CL/kernels/CLMinMaxLayerKernel.h"
+#include "arm_compute/core/CL/kernels/CLQuantizationLayerKernel.h"
+#include "arm_compute/runtime/CL/CLTensor.h"
+
+namespace arm_compute
+{
+class ICLTensor;
+
+/** Basic function to simulate a quantization layer. This function calls the following CL kernels:
+ *
+ * @note The implementation supports only 3D input tensors.
+ *
+ * -# @ref CLMinMaxLayerKernel
+ * -# @ref CLQuantizationLayerKernel
+ *
+ */
+class CLQuantizationLayer : public IFunction
+{
+public:
+    /** Default constructor */
+    CLQuantizationLayer();
+    /** Set the input and output tensors.
+     *
+     * @param[in]  input  Source tensor with at least 3 dimensions. The dimensions over the third will be interpreted as batches. Data types supported: F32.
+     * @param[out] output Destination tensor with the same dimensions of input. Output data type must be U8.
+     */
+    void configure(const ICLTensor *input, ICLTensor *output);
+
+    // Inherited methods overridden:
+    void run() override;
+
+private:
+    CLQuantizationLayerKernel _quantize_kernel;
+    CLMinMaxLayerKernel       _min_max_kernel;
+    CLTensor                  _min_max;
+};
+}
+#endif /* __ARM_COMPUTE_CLQUANTIZATIONLAYER_H__ */