134 lines
3.5 KiB
C++
134 lines
3.5 KiB
C++
/*
|
|
Copyright (c) 2010-2011, Intel Corporation
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are
|
|
met:
|
|
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
* Neither the name of Intel Corporation nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
|
|
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
|
|
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifdef _MSC_VER
|
|
#define NOMINMAX
|
|
#pragma warning (disable: 4244)
|
|
#pragma warning (disable: 4305)
|
|
// preventing MSVC fopen() deprecation complaints
|
|
#define _CRT_SECURE_NO_DEPRECATE
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
#ifdef __linux__
|
|
#include <malloc.h>
|
|
#endif
|
|
#include <math.h>
|
|
#include <map>
|
|
#include <string>
|
|
#include <algorithm>
|
|
#include <sys/types.h>
|
|
|
|
#include "ao_instrumented_ispc.h"
|
|
using namespace ispc;
|
|
|
|
#include "instrument.h"
|
|
#include "../timing.h"
|
|
|
|
#define NSUBSAMPLES 2
|
|
|
|
static unsigned int test_iterations;
|
|
static unsigned int width, height;
|
|
static unsigned char *img;
|
|
static float *fimg;
|
|
|
|
|
|
static unsigned char
|
|
clamp(float f)
|
|
{
|
|
int i = (int)(f * 255.5);
|
|
|
|
if (i < 0) i = 0;
|
|
if (i > 255) i = 255;
|
|
|
|
return (unsigned char)i;
|
|
}
|
|
|
|
|
|
static void
|
|
savePPM(const char *fname, int w, int h)
|
|
{
|
|
for (int y = 0; y < h; y++) {
|
|
for (int x = 0; x < w; x++) {
|
|
img[3 * (y * w + x) + 0] = clamp(fimg[3 *(y * w + x) + 0]);
|
|
img[3 * (y * w + x) + 1] = clamp(fimg[3 *(y * w + x) + 1]);
|
|
img[3 * (y * w + x) + 2] = clamp(fimg[3 *(y * w + x) + 2]);
|
|
}
|
|
}
|
|
|
|
FILE *fp = fopen(fname, "wb");
|
|
if (!fp) {
|
|
perror(fname);
|
|
exit(1);
|
|
}
|
|
|
|
fprintf(fp, "P6\n");
|
|
fprintf(fp, "%d %d\n", w, h);
|
|
fprintf(fp, "255\n");
|
|
fwrite(img, w * h * 3, 1, fp);
|
|
fclose(fp);
|
|
printf("Wrote image file %s\n", fname);
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
if (argc != 4) {
|
|
printf ("%s\n", argv[0]);
|
|
printf ("Usage: ao [num test iterations] [width] [height]\n");
|
|
getchar();
|
|
exit(-1);
|
|
}
|
|
else {
|
|
test_iterations = atoi(argv[1]);
|
|
width = atoi (argv[2]);
|
|
height = atoi (argv[3]);
|
|
}
|
|
|
|
// Allocate space for output images
|
|
img = new unsigned char[width * height * 3];
|
|
fimg = new float[width * height * 3];
|
|
|
|
ao_ispc(width, height, NSUBSAMPLES, fimg);
|
|
|
|
savePPM("ao-ispc.ppm", width, height);
|
|
|
|
ISPCPrintInstrument();
|
|
|
|
return 0;
|
|
}
|