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25 #ifndef ARM_COMPUTE_GC /* Needed by Utils.cpp to handle OpenGL ES exceptions properly */
26 #error "This example needs to be built with -DARM_COMPUTE_GC"
27 #endif /* ARM_COMPUTE_GC */
29 #include "arm_compute/core/Types.h"
30 #include "arm_compute/runtime/GLES_COMPUTE/GCFunctions.h"
31 #include "arm_compute/runtime/GLES_COMPUTE/GCScheduler.h"
32 #include "utils/Utils.h"
34 using namespace arm_compute;
35 using namespace utils;
37 class GCAbsDiffExample : public Example
40 void do_setup(int argc, char **argv) override
44 GCScheduler::get().default_init();
48 std::cout << "Usage: " << argv[0] << " [input0_image.ppm] [input1_image.ppm] \n\n";
49 std::cout << "No input_image provided, creating two dummy 640x480 images\n";
50 // Create two empty grayscale 640x480 images
51 src1.allocator()->init(TensorInfo(640, 480, Format::U8));
52 src2.allocator()->init(TensorInfo(640, 480, Format::U8));
57 std::cout << "Usage: " << argv[0] << " [input0_image.ppm] [input1_image.ppm] \n\n";
58 std::cout << "Only one input_image provided, creating a dummy 640x480 image\n";
60 ppm1.init_image(src1, Format::U8);
61 // Create an empty grayscale 640x480 image
62 src2.allocator()->init(TensorInfo(640, 480, Format::U8));
67 ppm1.init_image(src1, Format::U8);
69 ppm2.init_image(src2, Format::U8);
72 // Configure the temporary and destination images
73 dst.allocator()->init(*src1.info());
75 absdiff.configure(&src1, &src2, &dst);
77 // Allocate all the images
78 src1.allocator()->allocate();
79 src2.allocator()->allocate();
80 dst.allocator()->allocate();
82 // Fill the input image with the content of the PPM image if a filename was provided:
85 ppm1.fill_image(src1);
86 output_filename = std::string(argv[1]) + "_out.ppm";
90 ppm2.fill_image(src2);
93 void do_run() override
95 // Execute the functions:
98 void do_teardown() override
100 // Save the result to file:
101 if(!output_filename.empty())
103 // save_to_ppm maps and unmaps the image to store as PPM
104 // The GCTensor::map call inside the save_to_ppm will block until all pending operations on that image have completed
105 save_to_ppm(dst, output_filename);
110 GCImage src1{}, src2{}, dst{};
111 GCAbsoluteDifference absdiff{};
112 std::string output_filename{};
115 /** Main program for absdiff test
117 * @param[in] argc Number of arguments
118 * @param[in] argv Arguments ( [optional] Path to the first PPM image to process, [optional] Path the the second PPM image to process )
120 int main(int argc, char **argv)
122 return utils::run_example<GCAbsDiffExample>(argc, argv);