gem5/splash2/codes/apps/raytrace/rltotiff/tiff_rgba_io.c
Sanchayan Maity 2fcc51c2c1 Commit splash2 benchmark
While at it also add the libpthread static library amd m5op_x86
for matrix multiplication test code as well.

Note that the splash2 benchmark code does not comply with gem5
coding guidelines. Academic guys never seem to follow 80 columns
and no whitespace guideline :(.
2017-04-26 20:50:15 +05:30

254 lines
8 KiB
C

/*************************************************************************/
/* */
/* Copyright (c) 1994 Stanford University */
/* */
/* All rights reserved. */
/* */
/* Permission is given to use, copy, and modify this software for any */
/* non-commercial purpose as long as this copyright notice is not */
/* removed. All other uses, including redistribution in whole or in */
/* part, are forbidden without prior written permission. */
/* */
/* This software is provided with absolutely no warranty and no */
/* support. */
/* */
/*************************************************************************/
#ifndef USE_PROTOTYPES
#define USE_PROTOTYPES 1
#endif
#ifndef lint
static char sccsid[] = "@(#)savemap.c 1.3 2/6/9q";
#endif
#include <stdio.h>
#include <stdlib.h>
#include <tiffio.h>
#include "tiff_rgba_io.h"
#define streq(a,b) (strcmp(a,b) == 0)
#define BYTESWAP
typedef unsigned char u_char;
typedef unsigned long u_long;
typedef unsigned short ushort;
typedef unsigned short u_short;
static u_char rbuf[2048];
static u_char gbuf[2048];
static u_char bbuf[2048];
static u_char abuf[2048];
static u_char *scanline = NULL;
static long rowsperstrip = -1;
static long compression = COMPRESSION_LZW;
static long config = PLANARCONFIG_CONTIG;
static long orientation = ORIENTATION_BOTLEFT;
#define MIN(a,b) ((a)<(b)?(a):(b))
#define ABS(x) ((x)<0?-(x):(x))
long
tiff_save_rgba(char *name, long *pixels, long width, long height)
{
TIFF *tif;
long xsize, ysize;
long y;
long *pos;
xsize = width;
ysize = height;
tif = TIFFOpen(name, "w");
if (tif == NULL)
return 0;
TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, xsize);
TIFFSetField(tif, TIFFTAG_IMAGELENGTH, ysize);
TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 4);
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, config);
TIFFSetField(tif, TIFFTAG_COMPRESSION, compression);
TIFFSetField(tif, TIFFTAG_ORIENTATION, orientation);
if (rowsperstrip <= 0)
rowsperstrip = (8*1024)/TIFFScanlineSize(tif);
TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP,
rowsperstrip == 0 ? 1 : rowsperstrip);
if (config == PLANARCONFIG_CONTIG)
scanline = (u_char *)malloc(TIFFScanlineSize(tif));
for (y = 0, pos = pixels; y < ysize;
y++, pos += xsize) {
if (config == PLANARCONFIG_CONTIG) {
#ifdef BYTESWAP
register char *sp = (char *) pos;
register char *tp = (char *) scanline;
register long x;
for (x = 0; x < xsize; x++) {
tp[3] = sp[0];
tp[2] = sp[1];
tp[1] = sp[2];
tp[0] = sp[3];
sp += 4;
tp += 4;
}
#endif
#ifndef BYTESWAP
bcopy(pos, scanline, xsize*4);
#endif
if (TIFFWriteScanline(tif, scanline, y, 0) < 0)
break;
}
else if (config == PLANARCONFIG_SEPARATE) {
register char *pp = (char *) pos;
register long x;
for (x = 0; x < xsize; x++) {
rbuf[x] = pp[0];
gbuf[x] = pp[1];
bbuf[x] = pp[2];
abuf[x] = pp[3];
pp += 4;
}
if (TIFFWriteScanline(tif, rbuf, y, 0) < 0 ||
TIFFWriteScanline(tif, gbuf, y, 1) < 0 ||
TIFFWriteScanline(tif, bbuf, y, 2) < 0 ||
TIFFWriteScanline(tif, abuf, y, 3) < 0)
break;
}
}
(void) TIFFClose(tif);
return 1;
}
long
tiff_load_rgba(char *file, long **pixels, long *width, long *height)
{
TIFF *tif;
u_short bitspersample, samplesperpixel;
u_long xsize, ysize;
register long x, y, rowbytes;
u_char *buf;
long temp;
ushort orient;
register char *tp ;
register char *sp ;
if ((tif = TIFFOpen(file, "r")) == NULL) {
fprintf(stderr, "%s: error opening file.\n", file);
return 0;
}
TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &bitspersample);
switch (bitspersample) {
case 8:
break;
default:
fprintf(stderr, "%s: Can not image a %d-bit/sample image.\n",
file, bitspersample);
return 0;
}
TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
switch (samplesperpixel) {
case 3: case 4:
break;
default:
fprintf(stderr, "%s: Can not image a %d samples/pixel image.\n",
file, bitspersample);
return 0;
}
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &xsize);
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &ysize);
TIFFGetField(tif, TIFFTAG_ORIENTATION, &orient);
switch (orient) {
case ORIENTATION_TOPLEFT: case ORIENTATION_BOTLEFT:
break;
default:
fprintf(stderr, "%s: Unsupported orientation. Will assume ORIENTATION_TOPLEFT.\n" , file);
break;
}
rowbytes =TIFFScanlineSize(tif);
*width = xsize;
*height = ysize;
*pixels = (long *) malloc(ysize*xsize*sizeof(long));
switch (samplesperpixel) {
case 3:
tp = (char *) (*pixels);
if (orient != ORIENTATION_BOTLEFT)
tp += 4 * (*height-1) * *width;
buf = (u_char *) malloc(rowbytes);
for (y = 0; y < ysize; y++) {
if (TIFFReadScanline(tif, buf, y, 0) < 0)
break;
#ifdef BYTESWAP
sp = (char *) buf;
for (x = 0; x < xsize; x++) {
tp[3] = sp[0];
tp[2] = sp[1];
tp[1] = sp[2];
tp[0] = 0;
tp += 4;
sp += 3;
}
#endif
if (orient != ORIENTATION_BOTLEFT)
tp -= 8* *width;
}
break;
case 4:
buf = (u_char *) (*pixels);
if (orient != ORIENTATION_BOTLEFT)
buf += (*height-1) * rowbytes;
for (y = 0; y < ysize; y++) {
if (TIFFReadScanline(tif, buf, y, 0) < 0)
break;
#ifdef BYTESWAP
tp = (char *) buf;
sp = (char *) &temp;
for (x = 0; x < xsize; x++) {
temp = *((long *)tp);
tp[3] = sp[0];
tp[2] = sp[1];
tp[1] = sp[2];
tp[0] = sp[3];
tp += 4;
}
#endif
if (orient != ORIENTATION_BOTLEFT)
buf -= rowbytes;
else
buf += rowbytes;
}
break;
default:
fprintf(stderr, "%s: Can not image a %d samples/pixel image.\n",
file, bitspersample);
return 0;
}
(void) TIFFClose(tif);
return 1;
}