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process.cpp
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process.cpp
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#include <chrono>
#include <cstdio>
#include "guided_filter.h"
#include "fast_guided_filter.h"
#ifndef NO_AUTO_SCHEDULE
#include "guided_filter_auto_schedule.h"
#include "fast_guided_filter_auto_schedule.h"
#endif
#include "HalideBuffer.h"
#include "halide_benchmark.h"
#include "halide_image_io.h"
using namespace Halide::Runtime;
using namespace Halide::Tools;
int main(int argc, char **argv) {
if (argc < 7) {
printf("Usage: ./process guided.png input.png raduis eps s output.png output_fast.png\n"
"e.g.: ./process guided.png input.png 8 0.0004 4 output.png output_fast.png\n");
return 1;
}
Buffer<uint8_t> guided = load_image(argv[1]);
Buffer<uint8_t> input = load_image(argv[2]);
float eps = atof(argv[4]);
int radius = atof(argv[3]);
int s = atof(argv[5]);
Buffer<uint8_t> output(input.width(), input.height(), 3);
Buffer<uint8_t> output_fast(input.width(), input.height(), 3);
guided_filter(guided, input, eps, output);
// Manually-tuned version
double best_manual_1 = benchmark([&]() {
guided_filter(guided, input, eps, output);
output.device_sync();
});
double best_manual_2 = benchmark([&]() {
fast_guided_filter(guided, input, eps, output_fast);
output_fast.device_sync();
});
printf("Manually-tuned time(guided filter): %gms\n", best_manual_1 * 1e3);
printf("Manually-tuned time(fast guided filter): %gms\n", best_manual_2 * 1e3);
#ifndef NO_AUTO_SCHEDULE
// Auto-scheduled version
double best_auto_1 = benchmark([&]() {
guided_filter_auto_schedule(guided, input, eps, output);
output.device_sync();
});
double best_auto_2 = benchmark([&]() {
fast_guided_filter_auto_schedule(guided, input, eps, output_fast);
output_fast.device_sync();
});
printf("Auto-scheduled time(guided filter): %gms\n", best_auto_1 * 1e3);
printf("Auto-scheduled time(fast guided filter): %gms\n", best_auto_2 * 1e3);
#endif
convert_and_save_image(output, argv[6]);
convert_and_save_image(output_fast, argv[7]);
printf("Success!\n");
return 0;
}