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/*
* Copyright 2013 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include "zlib.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
// don't inline, to be friendly to js engine osr
void __attribute__ ((noinline)) doit(unsigned char *buffer, int size, int i) {
static unsigned char *buffer2 = NULL;
static unsigned char *buffer3 = NULL;
unsigned long maxCompressedSize = compressBound(size);
if (!buffer2) buffer2 = (unsigned char*)malloc(maxCompressedSize);
if (!buffer3) buffer3 = (unsigned char*)malloc(size);
unsigned long compressedSize = maxCompressedSize;
compress(buffer2, &compressedSize, buffer, size);
if (i == 0) printf("sizes: %d,%d\n", size, (int)compressedSize);
unsigned long decompressedSize = size;
uncompress(buffer3, &decompressedSize, buffer2, (int)compressedSize);
assert(decompressedSize == size);
if (i == 0) {
if (strcmp((char*)buffer, (char*)buffer3) != 0) {
puts("incorrect output!");
abort();
}
puts("output looks good");
}
}
int main(int argc, char **argv) {
int size, iters;
int arg = argc > 1 ? argv[1][0] - '0' : 3;
switch(arg) {
case 0: return 0; break;
case 1: size = 100000; iters = 60; break;
case 2: size = 100000; iters = 250; break;
case 3: size = 100000; iters = 500; break;
case 4: size = 100000; iters = 5*500; break;
case 5: size = 100000; iters = 10*500; break;
default: printf("error: %d\\n", arg); return -1;
}
unsigned char *buffer = (unsigned char*)malloc(size);
int i = 0;
int run = 0;
char runChar = 17;
while (i < size) {
if (run > 0) {
run--;
} else {
if ((i & 7) == 0) {
runChar = i & 7;
run = i & 31;
} else {
runChar = (i*i) % 6714;
}
}
buffer[i] = runChar;
i++;
}
for (i = 0; i < iters; i++) {
doit(buffer, size, i);
}
printf("ok.\n");
return 0;
}
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