1 /*
2 * Copyright (c) 2016-2020 Arm Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24 #ifndef ARM_COMPUTE_CL /* Needed by Utils.cpp to handle OpenCL exceptions properly */
25 #error "This example needs to be built with -DARM_COMPUTE_CL"
26 #endif /* ARM_COMPUTE_CL */
27
28 #include "arm_compute/core/Types.h"
29 #include "arm_compute/runtime/CL/CLScheduler.h"
30 #include "arm_compute/runtime/CL/functions/CLGaussian5x5.h"
31 #include "arm_compute/runtime/CL/functions/CLScale.h"
32 #include "arm_compute/runtime/NEON/NEFunctions.h"
33 #include "utils/ImageLoader.h"
34 #include "utils/Utils.h"
35
36 using namespace arm_compute;
37 using namespace utils;
38
39 /** Example demonstrating how to use both CL and NEON functions in the same pipeline
40 *
41 * @param[in] argc Number of arguments
42 * @param[in] argv Arguments ( [optional] Path to PPM image to process )
43 */
44 class NEONCLScaleMedianGaussianExample : public Example
45 {
46 public:
do_setup(int argc,char ** argv)47 bool do_setup(int argc, char **argv) override
48 {
49 /** [NEON / OpenCL Interop] */
50 PPMLoader ppm;
51
52 CLScheduler::get().default_init();
53
54 if(argc < 2)
55 {
56 // Print help
57 std::cout << "Usage: ./build/cl_convolution [input_image.ppm]\n\n";
58 std::cout << "No input_image provided, creating a dummy 640x480 image\n";
59 // Create an empty grayscale 640x480 image
60 src.allocator()->init(TensorInfo(640, 480, Format::U8));
61 }
62 else
63 {
64 ppm.open(argv[1]);
65 ppm.init_image(src, Format::U8);
66 }
67
68 TensorInfo scale_median_info(TensorInfo(src.info()->dimension(0) / 2, src.info()->dimension(1) / 2, Format::U8));
69
70 // Configure the temporary and destination images
71 scale_median.allocator()->init(scale_median_info);
72 median_gauss.allocator()->init(scale_median_info);
73 dst.allocator()->init(scale_median_info);
74
75 scale.configure(&src, &scale_median, ScaleKernelInfo{ InterpolationPolicy::NEAREST_NEIGHBOR, BorderMode::REPLICATE });
76 median.configure(&scale_median, &median_gauss, BorderMode::REPLICATE);
77 gauss.configure(&median_gauss, &dst, BorderMode::REPLICATE);
78
79 // Allocate all the images
80 src.allocator()->allocate();
81 scale_median.allocator()->allocate();
82 median_gauss.allocator()->allocate();
83 dst.allocator()->allocate();
84
85 // Fill the input image with the content of the PPM image if a filename was provided:
86 if(ppm.is_open())
87 {
88 ppm.fill_image(src);
89 const std::string output_filename = std::string(argv[1]) + "_out.ppm";
90 }
91 /** [NEON / OpenCL Interop] */
92
93 return true;
94 }
do_run()95 void do_run() override
96 {
97 // Enqueue and flush the OpenCL kernel:
98 scale.run();
99
100 // Do a blocking map of the input and output buffers of the NEON function:
101 scale_median.map();
102 median_gauss.map();
103
104 // Run the NEON function:
105 median.run();
106
107 // Unmap the output buffer before it's used again by OpenCL:
108 scale_median.unmap();
109 median_gauss.unmap();
110
111 // Run the final OpenCL function:
112 gauss.run();
113
114 // Make sure all the OpenCL jobs are done executing:
115 CLScheduler::get().sync();
116 }
do_teardown()117 void do_teardown() override
118 {
119 // Save the result to file:
120 if(!output_filename.empty())
121 {
122 save_to_ppm(dst, output_filename); // save_to_ppm maps and unmaps the image to store as PPM
123 }
124 }
125
126 private:
127 CLImage src{}, scale_median{}, median_gauss{}, dst{};
128 CLScale scale{};
129 NEMedian3x3 median{};
130 CLGaussian5x5 gauss{};
131 std::string output_filename{};
132 };
133
134 /** Main program for neon/cl scale median gaussian test
135 *
136 * @param[in] argc Number of arguments
137 * @param[in] argv Arguments ( [optional] Path to PPM image to process )
138 */
main(int argc,char ** argv)139 int main(int argc, char **argv)
140 {
141 return utils::run_example<NEONCLScaleMedianGaussianExample>(argc, argv);
142 }
143