From afbc5ffb0b567ae93fa2765066bd136d72be88ff Mon Sep 17 00:00:00 2001
From: Michalis Spyrou <michalis.spyrou@arm.com>
Date: Wed, 3 Oct 2018 14:18:19 +0100
Subject: COMPMID-1621 Deconvolution wrong output calculation

Change-Id: Ida71312bcf6dbd854f2ab1efc65f74910c79e152
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/151510
Tested-by: bsgcomp <bsgcomp@arm.com>
Reviewed-by: Michele DiGiorgio <michele.digiorgio@arm.com>
---
 src/core/CPP/kernels/CPPFlipWeightsKernel.cpp | 106 ++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 src/core/CPP/kernels/CPPFlipWeightsKernel.cpp

(limited to 'src/core/CPP/kernels')

diff --git a/src/core/CPP/kernels/CPPFlipWeightsKernel.cpp b/src/core/CPP/kernels/CPPFlipWeightsKernel.cpp
new file mode 100644
index 0000000000..741218e4f7
--- /dev/null
+++ b/src/core/CPP/kernels/CPPFlipWeightsKernel.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2018 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/core/CPP/kernels/CPPFlipWeightsKernel.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/core/Validate.h"
+#include "arm_compute/core/utils/misc/ShapeCalculator.h"
+
+#include <cstddef>
+#include <cstdint>
+
+using namespace arm_compute;
+
+CPPFlipWeightsKernel::CPPFlipWeightsKernel()
+    : _input(nullptr), _output(nullptr), _func(nullptr)
+{
+}
+
+template <typename T>
+void CPPFlipWeightsKernel::flip_weights(const Window &window_input, const Window &window)
+{
+    // Create iterators
+    Iterator in(_input, window_input);
+
+    Iterator out(_output, window);
+
+    const int kernel_size = _input->info()->dimension(0);
+
+    execute_window_loop(window_input, [&](const Coordinates & id)
+    {
+        *((reinterpret_cast<T *>(out.ptr()) + kernel_size * (kernel_size - id.y() - 1) + (kernel_size - id.x() - 1))) = *(reinterpret_cast<const T *>(in.ptr()));
+    },
+    in, out);
+}
+
+void CPPFlipWeightsKernel::configure(const ITensor *input, ITensor *output)
+{
+    ARM_COMPUTE_ERROR_ON_NULLPTR(input, output);
+
+    _input  = input;
+    _output = output;
+
+    // Configure kernel window
+    Window win = calculate_max_window(*input->info(), Steps());
+
+    // The CPPFlipWeightsKernel doesn't need padding so update_window_and_padding() can be skipped
+    Coordinates coord;
+    coord.set_num_dimensions(output->info()->num_dimensions());
+    output->info()->set_valid_region(ValidRegion(coord, output->info()->tensor_shape()));
+
+    ICPPKernel::configure(win);
+
+    switch(input->info()->data_type())
+    {
+        case DataType::F32:
+            _func = &CPPFlipWeightsKernel::flip_weights<float>;
+            break;
+        case DataType::F16:
+            _func = &CPPFlipWeightsKernel::flip_weights<half>;
+            break;
+        case DataType::QASYMM8:
+            _func = &CPPFlipWeightsKernel::flip_weights<uint8_t>;
+            break;
+        default:
+            ARM_COMPUTE_ERROR("Not supported");
+    }
+}
+
+void CPPFlipWeightsKernel::run(const Window &window, const ThreadInfo &info)
+{
+    ARM_COMPUTE_UNUSED(info);
+    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICPPKernel::window(), window);
+    ARM_COMPUTE_ERROR_ON(_func == nullptr);
+
+    Window out_window{ window };
+    out_window.set(Window::DimX, Window::Dimension(0, 0, 0));
+    out_window.set(Window::DimY, Window::Dimension(0, 0, 0));
+
+    (this->*_func)(window, out_window);
+}
-- 
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