arm_compute v17.06
diff --git a/utils/Utils.cpp b/utils/Utils.cpp
new file mode 100644
index 0000000..5316690
--- /dev/null
+++ b/utils/Utils.cpp
@@ -0,0 +1,171 @@
+/*
+ * 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 "Utils.h"
+
+#include <cctype>
+#include <cerrno>
+#include <iomanip>
+#include <string>
+
+namespace arm_compute
+{
+namespace utils
+{
+namespace
+{
+/* Advance the iterator to the first character which is not a comment
+ *
+ * @param[in,out] fs Stream to drop comments from
+ */
+void discard_comments(std::ifstream &fs)
+{
+ while(fs.peek() == '#')
+ {
+ fs.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
+ }
+}
+
+/* Advance the string iterator to the next character which is neither a space or a comment
+ *
+ * @param[in,out] fs Stream to drop comments from
+ */
+void discard_comments_and_spaces(std::ifstream &fs)
+{
+ while(true)
+ {
+ discard_comments(fs);
+
+ if(isspace(fs.peek()) == 0)
+ {
+ break;
+ }
+
+ fs.ignore(1);
+ }
+}
+} // namespace
+
+int run_example(int argc, const char **argv, example &func)
+{
+ std::cout << "\n"
+ << argv[0] << "\n\n";
+
+ try
+ {
+ func(argc, argv);
+
+ std::cout << "\nTest passed\n";
+ return 0;
+ }
+#ifdef ARM_COMPUTE_CL
+ catch(cl::Error &err)
+ {
+ std::cerr << "!!!!!!!!!!!!!!!!!!!!!!!!!!!" << std::endl;
+ std::cerr << std::endl
+ << "ERROR " << err.what() << "(" << err.err() << ")" << std::endl;
+ std::cerr << "!!!!!!!!!!!!!!!!!!!!!!!!!!!" << std::endl;
+ }
+#endif /* ARM_COMPUTE_CL */
+ catch(std::runtime_error &err)
+ {
+ std::cerr << "!!!!!!!!!!!!!!!!!!!!!!!!!!!" << std::endl;
+ std::cerr << std::endl
+ << "ERROR " << err.what() << " " << (errno ? strerror(errno) : "") << std::endl;
+ std::cerr << "!!!!!!!!!!!!!!!!!!!!!!!!!!!" << std::endl;
+ }
+
+ std::cout << "\nTest FAILED\n";
+
+ return -1;
+}
+
+void draw_detection_rectangle(ITensor *tensor, const DetectionWindow &rect, uint8_t r, uint8_t g, uint8_t b)
+{
+ ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(tensor, Format::RGB888);
+
+ uint8_t *top = tensor->info()->offset_element_in_bytes(Coordinates(rect.x, rect.y)) + tensor->buffer();
+ uint8_t *bottom = tensor->info()->offset_element_in_bytes(Coordinates(rect.x, rect.y + rect.height)) + tensor->buffer();
+ uint8_t *left = top;
+ uint8_t *right = tensor->info()->offset_element_in_bytes(Coordinates(rect.x + rect.width, rect.y)) + tensor->buffer();
+ size_t stride = tensor->info()->strides_in_bytes()[Window::DimY];
+
+ for(size_t x = 0; x < rect.width; ++x)
+ {
+ top[0] = r;
+ top[1] = g;
+ top[2] = b;
+ bottom[0] = r;
+ bottom[1] = g;
+ bottom[2] = b;
+
+ top += 3;
+ bottom += 3;
+ }
+
+ for(size_t y = 0; y < rect.height; ++y)
+ {
+ left[0] = r;
+ left[1] = g;
+ left[2] = b;
+ right[0] = r;
+ right[1] = g;
+ right[2] = b;
+
+ left += stride;
+ right += stride;
+ }
+}
+
+std::tuple<unsigned int, unsigned int, int> parse_ppm_header(std::ifstream &fs)
+{
+ // Check the PPM magic number is valid
+ std::array<char, 2> magic_number{ { 0 } };
+ fs >> magic_number[0] >> magic_number[1];
+ ARM_COMPUTE_ERROR_ON_MSG(magic_number[0] != 'P' || magic_number[1] != '6', "Invalid file type");
+ ARM_COMPUTE_UNUSED(magic_number);
+
+ discard_comments_and_spaces(fs);
+
+ unsigned int width = 0;
+ fs >> width;
+
+ discard_comments_and_spaces(fs);
+
+ unsigned int height = 0;
+ fs >> height;
+
+ discard_comments_and_spaces(fs);
+
+ int max_val = 0;
+ fs >> max_val;
+
+ discard_comments(fs);
+
+ ARM_COMPUTE_ERROR_ON_MSG(isspace(fs.peek()) == 0, "Invalid PPM header");
+ fs.ignore(1);
+
+ return std::make_tuple(width, height, max_val);
+}
+} // namespace utils
+} // namespace arm_compute