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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "trampoline.h"
int run(unsigned int size, unsigned int iterations)
{
fprintf(stderr, "Building CL trampoline... ");
if (tramp_init()) {
fprintf(stderr, "Failed.\n");
return 1;
}
fprintf(stderr, "Done.\n");
fprintf(stderr, "Loading kernel source from file... ");
if (tramp_load_kernel(CL_SRC_DIR"mandelbrot.cl")) {
fprintf(stderr, "Failed.\n");
return 1;
}
fprintf(stderr, "Loaded.\n");
fprintf(stderr, "Compiling kernel source... ");
if (tramp_compile_kernel()) {
fprintf(stderr, "Failed:\n%s\n", tramp_get_build_log());
return 1;
}
fprintf(stderr, "Compiled.\n");
fprintf(stderr, "Setting kernel arguments... ");
if (tramp_set_kernel_args(size, iterations)) {
fprintf(stderr, "Failed.\n");
return 1;
}
fprintf(stderr, "Done.\n");
fprintf(stderr, "Running kernel... ");
if (tramp_run_kernel()) {
fprintf(stderr, "Failed.\n");
return 1;
}
fprintf(stderr, "Done.\n");
char *buffer = malloc(size*size);
if (!buffer) {
perror("host data buffer malloc");
return 1;
}
fprintf(stderr, "Reading data from device... ");
if (tramp_copy_data((void*)&buffer, size*size)) {
fprintf(stderr, "Failed.\n");
return 1;
}
fprintf(stderr, "Done.\n");
fprintf(stderr, "Destroying CL trampoline... ");
tramp_destroy();
fprintf(stderr, "Blown to smitherines.\n");
printf("P5\n%d\n%d\n255\n",size,size);
fwrite(buffer, size*size, 1, stdout);
}
void die_help()
{
fprintf(stderr, "Syntax:\nfractal-gen [-s size] [-i max_iteratons]\n");
exit(1);
}
int main(int argc, char **argv)
{
long size = 0;
long iterations = 0;
char c = '\0';
while ((c = getopt(argc, argv, "s:i:")) != -1) {
switch (c) {
case 's':
size = atoi(optarg);
break;
case 'i':
iterations = atoi(optarg);
break;
case '?':
die_help();
return 1; /* mostly unreachable */
break; /* unreachable */
}
}
if (size <= 0 || iterations <= 0) {
die_help();
return 1; /* mostly unreachable */
}
run(size, iterations);
return 0;
}
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