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/**
Pankaj Kukreja
github.com/proton0001
Indian Institute of Technology Hyderabad
*/
#include "ImageHelper.h"
#include "dilate.h"
#include <iostream>
#include <cstdlib>
#define BENCHMARK_LIB
#ifdef BENCHMARK_LIB
#include "benchmark/benchmark.h"
#endif
int *inputImage;
extern "C" void dilateKernel(int height, int width, int *inputImage,
int *outputImage, int *temporary);
int main(int argc, char *argv[]) {
#ifdef BENCHMARK_LIB
::benchmark::Initialize(&argc, argv);
#endif
const char *dilateOutputFileName = (const char *)"./dilateOutput.txt";
inputImage = (int *)malloc(sizeof(int) * HEIGHT * WIDTH);
if (inputImage == NULL) {
std::cerr << "Insufficient memory\n";
exit(EXIT_FAILURE);
}
initializeRandomImage(inputImage, HEIGHT, WIDTH);
#ifdef BENCHMARK_LIB
::benchmark::RunSpecifiedBenchmarks();
#endif
int *outputImage = (int *)malloc(sizeof(int) * HEIGHT * WIDTH);
int *temp = (int *)malloc(sizeof(int) * HEIGHT * WIDTH);
if (outputImage == NULL || temp == NULL) {
std::cerr << "Insufficient memory\n";
exit(EXIT_FAILURE);
}
dilateKernel(HEIGHT, WIDTH, inputImage, outputImage, temp);
for (int j = 0; j < WIDTH; j++) {
outputImage[0 * WIDTH + j] = 0;
outputImage[(HEIGHT - 1) * WIDTH + j] = 0;
}
for (int i = 0; i < HEIGHT; i++) {
outputImage[i * WIDTH + 0] = 0;
outputImage[i * WIDTH + (WIDTH - 1)] = 0;
}
saveImage(outputImage, dilateOutputFileName, HEIGHT, WIDTH);
free(temp);
free(outputImage);
free(inputImage);
return (EXIT_SUCCESS);
}
#ifdef BENCHMARK_LIB
void BENCHMARK_DILATE(benchmark::State &state) {
/* taking height = width */
int height = state.range(0);
int width = state.range(0);
int *outputImage = (int *)malloc(sizeof(int) * height * width);
int *temp = (int *)malloc(sizeof(int) * height * width);
if (outputImage == NULL) {
std::cerr << "Insufficient memory\n";
exit(EXIT_FAILURE);
}
/* This call is to warm up the cache */
dilateKernel(height, width, inputImage, outputImage, temp);
while (state.KeepRunning()) {
dilateKernel(height, width, inputImage, outputImage, temp);
}
/* Since we are not passing state.range as 20 this if case will always be
* false. This call is to make compiler think that outputImage may be used
* later so that above kernel calls will not optimize out */
if (state.range(0) == 20) {
saveImage(outputImage, (const char *)"testFailed.txt", height, width);
}
free(temp);
free(outputImage);
}
#define MINIMUM_DIM (HEIGHT > WIDTH) ? WIDTH : HEIGHT
#if MINIMUM_DIM > 512
BENCHMARK(BENCHMARK_DILATE)
->RangeMultiplier(2)
->Range(128, MINIMUM_DIM)
->Unit(benchmark::kMicrosecond);
#else
BENCHMARK(BENCHMARK_DILATE)
->RangeMultiplier(2)
->Range(1, MINIMUM_DIM)
->Unit(benchmark::kMicrosecond);
#endif
#endif
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