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, 60 insertions, 0 deletions

diff --git a/src/runtime/CL/functions/CLQuantizationLayer.cpp b/src/runtime/CL/functions/CLQuantizationLayer.cpp
new file mode 100644
index 0000000000..ed1f51c714
--- /dev/null
+++ b/src/runtime/CL/functions/CLQuantizationLayer.cpp
@@ -0,0 +1,60 @@
+/*
+ * 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.
+ */
+
+#include "arm_compute/runtime/CL/functions/CLQuantizationLayer.h"
+
+#include "arm_compute/runtime/CL/CLScheduler.h"
+
+using namespace arm_compute;
+
+CLQuantizationLayer::CLQuantizationLayer()
+    : _quantize_kernel(), _min_max_kernel(), _min_max()
+{
+}
+
+void CLQuantizationLayer::configure(const ICLTensor *input, ICLTensor *output)
+{
+    // Configure min-max kernel. _min_max tensor will be auto-configured within the kernel.
+    _min_max_kernel.configure(input, &_min_max);
+
+    // Configure quantize kernel
+    _quantize_kernel.configure(input, output, &_min_max);
+
+    // Allocate min_max tensor
+    _min_max.allocator()->allocate();
+}
+
+void CLQuantizationLayer::run()
+{
+    cl::CommandQueue q = CLScheduler::get().queue();
+
+    // Reset min and max
+    _min_max_kernel.reset(q);
+
+    // Run min-max kernel
+    CLScheduler::get().enqueue(_min_max_kernel, false);
+
+    // Run quantize kernel
+    CLScheduler::get().enqueue(_quantize_kernel, false);
+}