#if defined(_MSC_VER) && (_MSC_VER >= 1400)
#define _CRT_SECURE_NO_DEPRECATE 1
#pragma warning(disable : 4996)
#endif
#include "texception.h"
#include "tpixel.h"
#include "tiio_sgi.h"
#include "tsystem.h"
#include "tpixelgr.h"
#include "../compatibility/tfile_io.h"
#if defined(LINUX) || defined(FREEBSD)
//#define _XOPEN_SOURCE_EXTENDED
#include <string.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#if defined(MACOSX)
#include <sys/malloc.h>
#endif
#include <assert.h>
#ifdef _WIN32
#include <io.h>
#include <windows.h>
#else
#ifndef LINUX
#include <strings.h>
#endif
#include <unistd.h>
#endif
#include <stdarg.h>
using namespace std;
//
// IMAGERGB:
// header file per le immagini sgi
//
struct IMAGERGB {
unsigned short imagic; /* stuff saved on disk . . */
unsigned short type;
unsigned short dim;
unsigned short xsize;
unsigned short ysize;
unsigned short zsize;
TUINT32 min;
TUINT32 max;
TUINT32 wastebytes;
char name[80];
TUINT32 colormap;
TINT32 file; /* stuff used in core only */
unsigned short flags;
short dorev;
short x;
short y;
short z;
short cnt;
unsigned short *ptr;
unsigned short *base;
unsigned short *tmpbuf;
TUINT32 offset;
TUINT32 rleend; /* for rle images */
TUINT32 *rowstart; /* for rle images */
TINT32 *rowsize; /* for rle images */
};
const int IMAGERGB_HEADER_SIZE = sizeof(IMAGERGB);
//
// macro definite nel vecchio ImageP/filergb.h
//
#define IMAGIC 0732
#define TYPEMASK 0xff00
#define ITYPE_RLE 0x0100
#define ISRLE(type) (((type)&0xff00) == ITYPE_RLE)
#define ITYPE_VERBATIM 0x0000
#define ISVERBATIM(type) (((type)&0xff00) == ITYPE_VERBATIM)
#define BPPMASK 0x00ff
#define BPP(type) ((type)&BPPMASK)
#define RLE(bpp) (ITYPE_RLE | (bpp))
#define VERBATIM(bpp) (ITYPE_VERBATIM | (bpp))
#define IBUFSIZE(pixels) ((pixels + (pixels >> 6)) << 2)
#define RLE_NOP 0x00
#ifndef _IORW
#define _IOREAD 0x1
#define _IOWRT 0x2
#define _IORW 0x80
#define _IOERR 0x20
#endif
static USHORT *ibufalloc(IMAGERGB *image, int bpp);
static void cvtshorts(USHORT buffer[], TINT32 n);
static void cvtTINT32s(TUINT32 *buffer, TINT32 n);
static void cvtimage(IMAGERGB *image);
static void img_rle_expand(USHORT *rlebuf, int ibpp, USHORT *expbuf, int obpp);
static int img_getrowsize(IMAGERGB *image);
static TUINT32 img_optseek(IMAGERGB *image, TUINT32 offset);
static TINT32 rgb_img_read(IMAGERGB *image, char *buffer, TINT32 count);
static int img_badrow(IMAGERGB *image, int y, int z);
static TUINT32 img_seek(IMAGERGB *image, UINT y, UINT z, UINT offs);
static TINT32 RGB_img_write(IMAGERGB *image, char *buffer, TINT32 count);
static void img_setrowsize(IMAGERGB *image, UINT cnt, UINT y, UINT z);
static TINT32 img_rle_compact(USHORT *expbuf, int ibpp, USHORT *rlebuf,
int obpp, int cnt);
static int iflush(IMAGERGB *image);
/*-------------------------------------------------------------------------*/
static int do_rgb_write_header(IMAGERGB *img, int fd) {
// DOBBIAMO SWAPPPPARE ?????????????????
int count = 0;
count += write(fd, &img->imagic, (int)sizeof(unsigned short));
count += write(fd, &img->type, (int)sizeof(unsigned short));
count += write(fd, &img->dim, (int)sizeof(unsigned short));
count += write(fd, &img->xsize, (int)sizeof(unsigned short));
count += write(fd, &img->ysize, (int)sizeof(unsigned short));
count += write(fd, &img->zsize, (int)sizeof(unsigned short));
count += write(fd, &img->min, (int)sizeof(TUINT32));
count += write(fd, &img->max, (int)sizeof(TUINT32));
count += write(fd, &img->wastebytes, (int)sizeof(TUINT32));
count += write(fd, img->name, (int)sizeof(img->name));
count += write(fd, &img->colormap, (int)sizeof(TUINT32));
count += write(fd, &img->file, (int)sizeof(TINT32));
count += write(fd, &img->flags, (int)sizeof(unsigned short));
count += write(fd, &img->dorev, (int)sizeof(short));
count += write(fd, &img->x, (int)sizeof(short));
count += write(fd, &img->y, (int)sizeof(short));
count += write(fd, &img->z, (int)sizeof(short));
count += write(fd, &img->cnt, (int)sizeof(short));
count += write(fd, &img->ptr, (int)sizeof(unsigned short *));
count += write(fd, &img->base, (int)sizeof(unsigned short *));
count += write(fd, &img->tmpbuf, (int)sizeof(unsigned short *));
count += write(fd, &img->offset, (int)sizeof(TUINT32));
count += write(fd, &img->rleend, (int)sizeof(TUINT32));
count += write(fd, &img->rowstart, (int)sizeof(TUINT32 *));
count += write(fd, &img->rowsize, (int)sizeof(TINT32 *));
if (sizeof(void *) == 8) // siamo a 64bit: l'header side ha dei padding
// bytes.
count = (count + 0x7) & (~0x7);
return count;
}
/*-------------------------------------------------------------------------*/
static int do_rgb_read_header(IMAGERGB *img, int fd) {
// DOBBIAMO SWAPPPPARE ?????????????????
int count = 0;
count += read(fd, &img->imagic, sizeof(unsigned short));
count += read(fd, &img->type, sizeof(unsigned short));
count += read(fd, &img->dim, sizeof(unsigned short));
count += read(fd, &img->xsize, sizeof(unsigned short));
count += read(fd, &img->ysize, sizeof(unsigned short));
count += read(fd, &img->zsize, sizeof(unsigned short));
count += read(fd, &img->min, sizeof(TUINT32));
count += read(fd, &img->max, sizeof(TUINT32));
count += read(fd, &img->wastebytes, sizeof(TUINT32));
count += read(fd, img->name, sizeof(img->name));
count += read(fd, &img->colormap, sizeof(TUINT32));
count += read(fd, &img->file, sizeof(TINT32));
count += read(fd, &img->flags, sizeof(unsigned short));
count += read(fd, &img->dorev, sizeof(short));
count += read(fd, &img->x, sizeof(short));
count += read(fd, &img->y, sizeof(short));
count += read(fd, &img->z, sizeof(short));
count += read(fd, &img->cnt, sizeof(short));
count += read(fd, &img->ptr, sizeof(unsigned short *));
count += read(fd, &img->base, sizeof(unsigned short *));
count += read(fd, &img->tmpbuf, sizeof(unsigned short *));
count += read(fd, &img->offset, sizeof(TUINT32));
count += read(fd, &img->rleend, sizeof(TUINT32));
count += read(fd, &img->rowstart, sizeof(TUINT32 *));
count += read(fd, &img->rowsize, sizeof(TINT32 *));
if (sizeof(void *) == 8) // siamo a 64bit: l'header side ha dei padding
// bytes.
count = (count + 0x7) & (~0x7);
return count;
}
/*-------------------------------------------------------------------------*/
enum OpenMode { OpenRead, OpenWrite };
/*-------------------------------------------------------------------------*/
static IMAGERGB *iopen(int fd, OpenMode openMode, unsigned int type,
unsigned int dim, unsigned int xsize, unsigned int ysize,
unsigned int zsize, short dorev) {
IMAGERGB *image;
extern int errno;
int tablesize, f = fd;
image = (IMAGERGB *)malloc((int)sizeof(IMAGERGB));
memset(image, 0, sizeof(IMAGERGB));
if (openMode == OpenWrite) {
// WRITE
image->imagic = IMAGIC;
image->type = type;
image->xsize = xsize;
image->ysize = 1;
image->zsize = 1;
if (dim > 1) image->ysize = ysize;
if (dim > 2) image->zsize = zsize;
if (image->zsize == 1) {
image->dim = 2;
if (image->ysize == 1) image->dim = 1;
} else {
image->dim = 3;
}
image->min = 10000000;
image->max = 0;
strncpy(image->name, "no name", 80);
image->wastebytes = 0;
image->dorev = dorev;
if (do_rgb_write_header(image, f) != IMAGERGB_HEADER_SIZE) {
cout << "iopen: error on write of image header\n" << endl;
return NULL;
}
image->flags = _IOWRT;
} else {
// READ
if (do_rgb_read_header(image, f) != IMAGERGB_HEADER_SIZE) {
cout << "iopen: error on read of image header" << endl;
return NULL;
}
if (((image->imagic >> 8) | ((image->imagic & 0xff) << 8)) == IMAGIC) {
image->dorev = 1;
cvtimage(image);
} else
image->dorev = 0;
if (image->imagic != IMAGIC) {
cout << "iopen: bad magic in image file " << image->imagic << endl;
return NULL;
}
image->flags = _IOREAD;
}
if (ISRLE(image->type)) {
tablesize = image->ysize * image->zsize * (int)sizeof(TINT32);
image->rowstart = (TUINT32 *)malloc(tablesize);
image->rowsize = (TINT32 *)malloc(tablesize);
if (image->rowstart == 0 || image->rowsize == 0) {
cout << "iopen: error on table alloc" << endl;
return NULL;
}
image->rleend = 512L + 2 * tablesize;
if (openMode == OpenWrite) {
// WRITE
int max = image->ysize * image->zsize;
for (int i = 0; i < max; i++) {
image->rowstart[i] = 0;
image->rowsize[i] = -1;
}
} else {
// READ
tablesize = image->ysize * image->zsize * (int)sizeof(TINT32);
lseek(f, 512L, 0);
if (read(f, image->rowstart, tablesize) != tablesize) {
#ifdef _WIN32
DWORD error;
error = GetLastError();
#endif
TSystem::outputDebug("iopen: error on read of rowstart\n");
return NULL;
}
if (image->dorev) cvtTINT32s(image->rowstart, tablesize);
if (read(f, image->rowsize, tablesize) != tablesize) {
#ifdef _WIN32
DWORD error;
error = GetLastError();
#endif
TSystem::outputDebug("iopen: error on read of rowsize\n");
return NULL;
}
if (image->dorev) cvtTINT32s((TUINT32 *)image->rowsize, tablesize);
}
} // END ISRLE
image->cnt = 0;
image->ptr = 0;
image->base = 0;
if ((image->tmpbuf = ibufalloc(image, BPP(image->type))) == 0) {
char xs[1024];
snprintf(xs, sizeof(xs), "%d", image->xsize);
TSystem::outputDebug(string("iopen: error on tmpbuf alloc %d\n") + xs);
return NULL;
}
image->x = image->y = image->z = 0;
image->file = fd;
image->offset = 512L; // set up for img_optseek
lseek((int)image->file, 512L, 0);
return (image);
}
/*-------------------------------------------------------------------------*/
static USHORT *ibufalloc(IMAGERGB *image, int bpp) {
return (USHORT *)malloc(IBUFSIZE(image->xsize) * bpp);
}
/*-------------------------------------------------------------------------*/
/*
Inverte gli short del buffer
*/
static void cvtshorts(unsigned short buffer[], TINT32 n) {
TINT32 nshorts = n >> 1;
for (int i = 0; i < nshorts; i++) {
unsigned short swrd = *buffer;
*buffer++ = (swrd >> 8) | (swrd << 8);
}
return;
}
/*-----------------------------------------------------------------------------*/
/*
* INVERTE I LONG DEL BUFFER
*/
/*-----------------------------------------------------------------------------*/
static void cvtTINT32s(TUINT32 buffer[], TINT32 n) {
TINT32 nTINT32s = n >> 2;
for (int i = 0; i < nTINT32s; i++) {
TUINT32 lwrd = buffer[i];
buffer[i] = ((lwrd >> 24) | (lwrd >> 8 & 0xff00) | (lwrd << 8 & 0xff0000) |
(lwrd << 24));
}
return;
}
/*-----------------------------------------------------------------------------*/
/*
* INVERTE I LONG E GLI SHORT DEL BUFFER
*/
/*-----------------------------------------------------------------------------*/
static void cvtimage(IMAGERGB *image) {
TUINT32 *buffer = (TUINT32 *)image;
cvtshorts((unsigned short *)buffer, 12);
cvtTINT32s(buffer + 3, 12);
cvtTINT32s(buffer + 26, 4);
return;
}
/*-----------------------------------------------------------------------------*/
#define EXPAND_CODE(TYPE) \
while (1) { \
pixel = *iptr++; \
if (!(count = (pixel & 0x7f))) return; \
if (pixel & 0x80) { \
while (count--) *optr++ = (TYPE)*iptr++; \
} else { \
pixel = *iptr++; \
while (count--) *optr++ = (TYPE)pixel; \
} \
}
/*-----------------------------------------------------------------------------*/
/*
* ESPANDE UNA IMMAGINE FORMATO RGB-RLE
*/
/*-----------------------------------------------------------------------------*/
static void img_rle_expand(unsigned short *rlebuf, int ibpp,
unsigned short *expbuf, int obpp) {
if (ibpp == 1 && obpp == 1) {
unsigned char *iptr = (unsigned char *)rlebuf;
unsigned char *optr = (unsigned char *)expbuf;
unsigned short pixel, count;
EXPAND_CODE(unsigned char);
} else if (ibpp == 1 && obpp == 2) {
unsigned char *iptr = (unsigned char *)rlebuf;
unsigned short *optr = expbuf;
unsigned short pixel, count;
EXPAND_CODE(unsigned short);
} else if (ibpp == 2 && obpp == 1) {
unsigned short *iptr = rlebuf;
unsigned char *optr = (unsigned char *)expbuf;
unsigned short pixel, count;
EXPAND_CODE(unsigned char);
} else if (ibpp == 2 && obpp == 2) {
unsigned short *iptr = rlebuf;
unsigned short *optr = expbuf;
unsigned short pixel, count;
EXPAND_CODE(unsigned short);
} else
cout << "rle_expand: bad bpp: " << ibpp << obpp << endl;
}
/*-----------------------------------------------------------------------------*/
/*
* RITORNA L'AMPIEZZA DELLA RIGA DI UN IMMAGINE RGB
*/
/*-----------------------------------------------------------------------------*/
static int img_getrowsize(IMAGERGB *image) {
switch (image->dim) {
case 1:
return (int)image->rowsize[0];
case 2:
return (int)image->rowsize[image->y];
case 3:
return (int)image->rowsize[image->y + image->z * image->ysize];
}
return 0;
}
/*-----------------------------------------------------------------------------*/
/*
* SPOSTA IL PUNTATORE AL FILE RGB
*/
/*-----------------------------------------------------------------------------*/
static TUINT32 img_optseek(IMAGERGB *image, TUINT32 offset) {
if (image->offset != offset) {
image->offset = offset;
return (TUINT32)lseek(image->file, (TINT32)offset, 0);
}
return offset;
}
/*-----------------------------------------------------------------------------*/
/*
* LEGGE DAL FILE RGB E RIEMPE IL BUFFER
*/
/*-----------------------------------------------------------------------------*/
static TINT32 rgb_img_read(IMAGERGB *image, char *buffer, TINT32 count) {
TINT32 retval;
retval = read(image->file, buffer, count);
if (retval == count)
image->offset += count;
else
// BRUTTO: ma qui non ci si deve mai passare, serve per fare un crash
image->offset = (TUINT32)-1;
return retval;
}
/*-----------------------------------------------------------------------------*/
/*
* CONTROLLA SE LA RIGA CORRENTE DELL'IMMAGINE RGB E' VALIDA
*/
/*-----------------------------------------------------------------------------*/
static int img_badrow(IMAGERGB *image, int y, int z) {
if (y >= image->ysize || z >= image->zsize)
return 1;
else
return 0;
}
/*-----------------------------------------------------------------------------*/
/*
* POSIZIONA IL PUNTATORE AL FILE RGB ALL'INIZIO DELL'AREA DATI IMMAGINE
*/
/*-----------------------------------------------------------------------------*/
static TUINT32 img_seek(IMAGERGB *image, unsigned int y, unsigned int z,
unsigned int offs) {
if (img_badrow(image, y, z)) {
cout << "imglib: row number out of range" << endl;
return (TUINT32)EOF;
}
image->x = 0;
image->y = y;
image->z = z;
if (ISVERBATIM(image->type)) {
switch (image->dim) {
case 1:
return img_optseek(image, 512L + offs);
case 2:
return img_optseek(image,
512L + offs + (y * image->xsize) * BPP(image->type));
case 3:
return img_optseek(
image, 512L + offs +
(y * image->xsize + z * image->xsize * image->ysize) *
BPP(image->type));
default:
cout << "img_seek: weird dim" << endl;
break;
}
} else if (ISRLE(image->type)) {
switch (image->dim) {
case 1:
return img_optseek(image, offs + image->rowstart[0]);
case 2:
return img_optseek(image, offs + image->rowstart[y]);
case 3:
return img_optseek(image, offs + image->rowstart[y + z * image->ysize]);
default:
cout << "img_seek: weird dim" << endl;
break;
}
} else
cout << "img_seek: weird image type" << endl;
return 0;
}
/*-----------------------------------------------------------------------------*/
/*
Legge una riga (compressa/non compressa) di un file RGB.
*/
static int new_getrow(IMAGERGB *image, void *buffer, UINT y, UINT z) {
short cnt;
if (!(image->flags & (_IORW | _IOREAD))) return -1;
if (image->dim < 3) z = 0;
if (image->dim < 2) y = 0;
img_seek(image, y, z, 0);
if (ISVERBATIM(image->type)) {
switch (BPP(image->type)) {
case 1:
if (rgb_img_read(image, (char *)buffer, image->xsize) != image->xsize)
return -1;
return image->xsize;
case 2:
cnt = image->xsize << 1;
if (rgb_img_read(image, (char *)buffer, cnt) != cnt)
return -1;
else {
if (image->dorev) cvtshorts((unsigned short *)buffer, cnt);
return image->xsize;
}
default:
cout << "getrow: weird bpp" << endl;
break;
}
} else if (ISRLE(image->type)) {
switch (BPP(image->type)) {
case 1:
if ((cnt = img_getrowsize(image)) == -1) return -1;
if (rgb_img_read(image, (char *)image->tmpbuf, cnt) != cnt)
return -1;
else {
img_rle_expand(image->tmpbuf, 1, (unsigned short *)buffer, 1);
return image->xsize;
}
case 2:
if ((cnt = img_getrowsize(image)) == -1) return -1;
if (cnt != rgb_img_read(image, (char *)image->tmpbuf, cnt))
return -1;
else {
if (image->dorev) cvtshorts(image->tmpbuf, cnt);
img_rle_expand(image->tmpbuf, 2, (unsigned short *)buffer, 2);
return image->xsize;
}
default:
cout << "getrow: weird bpp" << endl;
break;
}
} else
cout << "getrow: weird image type" << endl;
return -1;
}
/*-----------------------------------------------------------------------------*/
/*
* ROBA PRESA DA ASMWRITERGB.C
*/
/*-----------------------------------------------------------------------------*/
static TINT32 RGB_img_write(IMAGERGB *image, char *buffer, TINT32 count) {
TINT32 retval;
retval = write(image->file, buffer, count);
if (retval == count)
image->offset += count;
else
image->offset = (TUINT32)-1;
return retval;
}
/*-----------------------------------------------------------------------------*/
static void img_setrowsize(IMAGERGB *image, UINT cnt, UINT y, UINT z) {
TINT32 *sizeptr = 0;
if (img_badrow(image, y, z)) return;
switch (image->dim) {
case 1:
sizeptr = &image->rowsize[0];
image->rowstart[0] = image->rleend;
break;
case 2:
sizeptr = &image->rowsize[y];
image->rowstart[y] = image->rleend;
break;
case 3:
sizeptr = &image->rowsize[y + z * image->ysize];
image->rowstart[y + z * image->ysize] = image->rleend;
}
if (*sizeptr != -1) image->wastebytes += *sizeptr;
*sizeptr = (TINT32)cnt;
image->rleend += cnt;
}
/*-----------------------------------------------------------------------------*/
#define COMPACT_CODE(TYPE) \
while (iptr < ibufend) { \
sptr = iptr; \
iptr += 2; \
while ((iptr < ibufend) && \
((iptr[-2] != iptr[-1]) || (iptr[-1] != iptr[0]))) \
iptr++; \
iptr -= 2; \
count = iptr - sptr; \
while (count) { \
todo = (TYPE)(count > 126 ? 126 : count); \
count -= todo; \
*optr++ = (TYPE)(0x80 | todo); \
while (todo--) *optr++ = (TYPE)*sptr++; \
} \
sptr = iptr; \
cc = *iptr++; \
while ((iptr < ibufend) && (*iptr == cc)) iptr++; \
count = iptr - sptr; \
while (count) { \
todo = (TYPE)(count > 126 ? 126 : count); \
count -= todo; \
*optr++ = (TYPE)todo; \
*optr++ = (TYPE)cc; \
} \
} \
*optr++ = 0;
/*-----------------------------------------------------------------------------*/
static TINT32 img_rle_compact(unsigned short *expbuf, int ibpp,
unsigned short *rlebuf, int obpp, int cnt) {
if (ibpp == 1 && obpp == 1) {
unsigned char *iptr = (unsigned char *)expbuf;
unsigned char *ibufend = iptr + cnt;
unsigned char *sptr;
unsigned char *optr = (unsigned char *)rlebuf;
TUINT32 todo, cc;
TINT32 count;
COMPACT_CODE(unsigned char);
return optr - (unsigned char *)rlebuf;
} else if (ibpp == 1 && obpp == 2) {
unsigned char *iptr = (unsigned char *)expbuf;
unsigned char *ibufend = iptr + cnt;
unsigned char *sptr;
unsigned short *optr = rlebuf;
TUINT32 todo, cc;
TINT32 count;
COMPACT_CODE(unsigned short);
return optr - rlebuf;
} else if (ibpp == 2 && obpp == 1) {
unsigned short *iptr = expbuf;
unsigned short *ibufend = iptr + cnt;
unsigned short *sptr;
unsigned char *optr = (unsigned char *)rlebuf;
TUINT32 todo, cc;
TINT32 count;
COMPACT_CODE(unsigned char);
return optr - (unsigned char *)rlebuf;
} else if (ibpp == 2 && obpp == 2) {
unsigned short *iptr = expbuf;
unsigned short *ibufend = iptr + cnt;
unsigned short *sptr;
unsigned short *optr = rlebuf;
unsigned short todo, cc;
TINT32 count;
COMPACT_CODE(unsigned short);
return optr - rlebuf;
} else {
cout << "rle_compact: bad bpp: %d %d" << ibpp << obpp;
return 0;
}
}
/*-----------------------------------------------------------------------------*/
static void iclose(IMAGERGB *image) {
TINT32 tablesize;
iflush(image);
img_optseek(image, 0);
/* CONTROLLARE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
if (image->flags & _IOWRT) {
if (image->dorev) cvtimage(image);
if (do_rgb_write_header(image, image->file) != IMAGERGB_HEADER_SIZE) {
fprintf(stderr, "iflush: error on write of image header\n");
return;
}
if (image->dorev) cvtimage(image);
if (ISRLE(image->type)) {
img_optseek(image, 512L);
tablesize = image->ysize * image->zsize * (int)sizeof(TINT32);
if (image->dorev) cvtTINT32s(image->rowstart, tablesize);
if (RGB_img_write(image, (char *)(image->rowstart), tablesize) !=
tablesize) {
fprintf(stderr, "iflush: error on write of rowstart\n");
return;
}
if (image->dorev) cvtTINT32s((TUINT32 *)image->rowsize, tablesize);
if (RGB_img_write(image, (char *)(image->rowsize), tablesize) !=
tablesize) {
fprintf(stderr, "iflush: error on write of rowsize\n");
return;
}
}
}
if (image->base) {
free(image->base);
image->base = 0;
}
if (image->tmpbuf) {
free(image->tmpbuf);
image->tmpbuf = 0;
}
if (ISRLE(image->type)) {
free(image->rowstart);
image->rowstart = 0;
free(image->rowsize);
image->rowsize = 0;
}
free(image);
return;
}
/*-------------------------------------------------------------------------*/
static int new_putrow(IMAGERGB *image, void *buffer, UINT y, UINT z) {
TINT32 cnt;
int dorev, bpp;
if (!(image->flags & (_IORW | _IOWRT))) return -1;
if (image->dim < 3) z = 0;
if (image->dim < 2) y = 0;
image->min = 0;
bpp = BPP(image->type);
dorev = image->dorev && bpp == 2;
if (bpp == 1)
image->max = 255; /*commento tutti i calcoli su max e min per velocizzare */
else
image->max = 65535;
if (ISVERBATIM(image->type)) {
img_seek(image, y, z, 0);
cnt = image->xsize << (bpp - 1);
if (dorev) cvtshorts((unsigned short *)buffer, cnt);
if (RGB_img_write(image, (char *)buffer, cnt) != cnt) {
if (dorev) cvtshorts((unsigned short *)buffer, cnt);
return -1;
} else {
if (dorev) cvtshorts((unsigned short *)buffer, cnt);
return image->xsize;
}
} else if (ISRLE(image->type)) {
cnt = img_rle_compact((unsigned short *)buffer, bpp, image->tmpbuf, bpp,
image->xsize);
cnt <<= (bpp - 1);
img_setrowsize(image, cnt, y, z);
img_seek(image, y, z, 0);
if (dorev) cvtshorts(image->tmpbuf, cnt);
if (RGB_img_write(image, (char *)(image->tmpbuf), cnt) != cnt) {
if (dorev) cvtshorts(image->tmpbuf, cnt);
return -1;
} else {
if (dorev) cvtshorts(image->tmpbuf, cnt);
return image->xsize;
}
} else
fprintf(stderr, "putrow: weird image type\n");
return -1;
}
/*----------------------------------------------------------------------------*/
static int iflush(IMAGERGB *image) {
unsigned short *base;
if ((image->flags & _IOWRT) && (base = image->base) != NULL &&
(image->ptr - base) > 0) {
if (new_putrow(image, base, image->y, image->z) != image->xsize) {
image->flags |= _IOERR;
return (EOF);
}
}
return 0;
}
/*----------------------------------------------------------------------------*/
class SgiReader final : public Tiio::Reader {
IMAGERGB *m_header;
int m_currentY;
public:
SgiReader() : m_header(0), m_currentY(0) {}
~SgiReader();
void open(FILE *file) override;
TPropertyGroup *getProperties() const override { return 0; }
void readLine(char *buffer, int x0, int x1, int shrink) override;
void readLine(short *buffer, int x0, int x1, int shrink) override;
int skipLines(int lineCount) override;
};
//-------------------------------------------------------------------
void SgiReader::open(FILE *file) {
m_header = iopen(fileno(file), OpenRead, 0, 0, 0, 0, 0, 0);
if (!m_header) {
string str("Can't open file");
throw(str);
}
m_info.m_lx = m_header->xsize;
m_info.m_ly = m_header->ysize;
m_info.m_bitsPerSample = BPP(m_header->type) * 8;
m_info.m_samplePerPixel = m_header->zsize;
Tiio::SgiWriterProperties *prop = new Tiio::SgiWriterProperties();
m_info.m_properties = prop;
prop->m_endianess.setValue(m_header->dorev == 1 ? L"Big Endian"
: L"Little Endian");
prop->m_compressed.setValue(ISRLE(m_header->type) ? true : false);
wstring pixelSize;
int ps = m_info.m_bitsPerSample * m_info.m_samplePerPixel;
if (ps == 8)
pixelSize = L"8 bits (Greyscale)";
else if (ps == 24)
pixelSize = L"24 bits";
else if (ps == 32)
pixelSize = L"32 bits";
else if (ps == 48)
pixelSize = L"48 bits";
else if (ps == 64)
pixelSize = L"64 bits";
prop->m_pixelSize.setValue(pixelSize);
}
//-------------------------------------------------------------------
SgiReader::~SgiReader() {
if (!m_header) return;
if (m_header->base) free(m_header->base);
if (m_header->tmpbuf) free(m_header->tmpbuf);
if ((ISRLE(m_header->type))) {
free(m_header->rowstart);
free(m_header->rowsize);
}
free(m_header);
m_header = 0;
}
//-------------------------------------------------------------------
void SgiReader::readLine(short *buffer, int x0, int x1, int shrink) {
// assert(shrink == 1);
// assert(x0 == 0);
// assert(x1 == m_info.m_lx-1);
assert(BPP(m_header->type) == 2);
{ // 64 -> 32
TPixel64 *pix = (TPixel64 *)buffer;
std::vector<USHORT> rbuf(m_info.m_lx), gbuf(m_info.m_lx), bbuf(m_info.m_lx),
mbuf(m_info.m_lx);
if (m_header->zsize == 4) {
new_getrow(m_header, &rbuf[0], m_currentY, 0);
new_getrow(m_header, &gbuf[0], m_currentY, 1);
new_getrow(m_header, &bbuf[0], m_currentY, 2);
new_getrow(m_header, &mbuf[0], m_currentY, 3);
for (int i = 0; i < (x1 - x0 + 1); ++i) {
pix->r = rbuf[i];
pix->g = gbuf[i];
pix->b = bbuf[i];
pix->m = mbuf[i];
++pix;
}
} else {
new_getrow(m_header, &rbuf[0], m_currentY, 0);
new_getrow(m_header, &gbuf[0], m_currentY, 1);
new_getrow(m_header, &bbuf[0], m_currentY, 2);
for (int i = 0; i < (x1 - x0 + 1); ++i) {
pix->r = rbuf[i];
pix->g = gbuf[i];
pix->b = bbuf[i];
pix->m = 0xffff;
++pix;
}
}
}
m_currentY++;
}
//-------------------------------------------------------------------
void SgiReader::readLine(char *buffer, int x0, int x1, int shrink) {
// assert(shrink == 1);
// assert(x0 == 0);
// assert(x1 == m_info.m_lx-1);
// Non ancora implementata la lettura parziale
x0 = 0;
x1 = m_info.m_lx - 1;
shrink = 1;
if (BPP(m_header->type) == 1) // 32 -> 32
{
TPixel32 *pix = (TPixel32 *)buffer;
std::vector<UCHAR> rbuf(m_info.m_lx), gbuf(m_info.m_lx), bbuf(m_info.m_lx),
mbuf(m_info.m_lx);
if (m_header->zsize == 4) {
new_getrow(m_header, &rbuf[0], m_currentY, 0);
new_getrow(m_header, &gbuf[0], m_currentY, 1);
new_getrow(m_header, &bbuf[0], m_currentY, 2);
new_getrow(m_header, &mbuf[0], m_currentY, 3);
for (int i = 0; i < (x1 - x0 + 1); ++i) {
pix->r = rbuf[i];
pix->g = gbuf[i];
pix->b = bbuf[i];
pix->m = mbuf[i];
++pix;
}
} else {
new_getrow(m_header, &rbuf[0], m_currentY, 0);
if (m_header->zsize == 1)
for (int i = 0; i < (x1 - x0 + 1); ++i) {
pix->r = rbuf[i];
pix->g = rbuf[i];
pix->b = rbuf[i];
pix->m = 0xff;
++pix;
}
else {
new_getrow(m_header, &gbuf[0], m_currentY, 1);
new_getrow(m_header, &bbuf[0], m_currentY, 2);
for (int i = 0; i < (x1 - x0 + 1); ++i) {
pix->r = rbuf[i];
pix->g = gbuf[i];
pix->b = bbuf[i];
pix->m = 0xff;
++pix;
}
}
}
} else { // 64 -> 32
TPixel32 *pix = (TPixel32 *)buffer;
std::vector<USHORT> rbuf(m_info.m_lx), gbuf(m_info.m_lx), bbuf(m_info.m_lx),
mbuf(m_info.m_lx);
if (m_header->zsize == 4) {
new_getrow(m_header, &rbuf[0], m_currentY, 0);
new_getrow(m_header, &gbuf[0], m_currentY, 1);
new_getrow(m_header, &bbuf[0], m_currentY, 2);
new_getrow(m_header, &mbuf[0], m_currentY, 3);
for (int i = 0; i < (x1 - x0 + 1); ++i) {
pix->r = rbuf[i] >> 8;
pix->g = gbuf[i] >> 8;
pix->b = bbuf[i] >> 8;
pix->m = mbuf[i] >> 8;
++pix;
}
} else {
new_getrow(m_header, &rbuf[0], m_currentY, 0);
new_getrow(m_header, &gbuf[0], m_currentY, 1);
new_getrow(m_header, &bbuf[0], m_currentY, 2);
for (int i = 0; i < (x1 - x0 + 1); ++i) {
pix->r = rbuf[i] >> 8;
pix->g = gbuf[i] >> 8;
pix->b = bbuf[i] >> 8;
pix->m = 0xff;
++pix;
}
}
}
m_currentY++;
}
//-------------------------------------------------------------------
int SgiReader::skipLines(int lineCount) {
m_currentY += lineCount;
return lineCount;
}
//-------------------------------------------------------------------
/*
WRITER
*/
class SgiWriter final : public Tiio::Writer {
int m_currentY;
IMAGERGB *m_header;
protected:
TImageInfo m_info;
public:
SgiWriter() : m_currentY(0), m_header(0){};
~SgiWriter() {
if (m_header) iclose(m_header);
delete m_properties;
}
void open(FILE *file, const TImageInfo &info) override;
TPropertyGroup *getProperties() { return m_properties; }
void writeLine(char *buffer) override;
void writeLine(short *buffer) override;
void flush() override {}
// RowOrder getRowOrder() const { return BOTTOM2TOP; }
bool write64bitSupported() const override { return true; }
void setProperties(TPropertyGroup *properties);
// m_header->zsize is updated with "Bits Per Pixel" property value in the
// function open()
bool writeAlphaSupported() const override {
return m_header && (m_header->zsize == 4);
}
private:
// not implemented
SgiWriter(const SgiWriter &);
SgiWriter &operator=(const SgiWriter &);
};
Tiio::Reader *Tiio::makeSgiReader() { return new SgiReader(); }
//=========================================================
Tiio::Writer *Tiio::makeSgiWriter() { return new SgiWriter(); }
//---------------------------------------------------------
void SgiWriter::open(FILE *file, const TImageInfo &info) {
if (!m_properties) m_properties = new Tiio::SgiWriterProperties();
TEnumProperty *p =
(TEnumProperty *)(m_properties->getProperty("Bits Per Pixel"));
assert(p);
string str = ::to_string(p->getValue());
int bitPerPixel = atoi(str.c_str());
int channelBytesNum = 1;
int dim = 3;
int zsize = 1;
m_info = info;
switch (bitPerPixel) {
case 8:
dim = 2;
zsize = 1;
break;
case 24:
dim = 3;
zsize = 3;
break;
case 32:
dim = 3;
zsize = 4;
break;
case 48:
dim = 3;
zsize = 3;
channelBytesNum = 2;
break;
case 64:
zsize = 4;
dim = 3;
channelBytesNum = 2;
break;
}
TBoolProperty *bp =
(TBoolProperty *)(m_properties->getProperty("RLE-Compressed"));
assert(bp);
bool compressed = bp->getValue();
p = (TEnumProperty *)(m_properties->getProperty("Endianess"));
assert(p);
str = ::to_string(p->getValue());
bool bigEndian = (str == "Big Endian");
m_header = iopen(
fileno(file), OpenWrite,
compressed ? RLE(BPP(channelBytesNum)) : VERBATIM(BPP(channelBytesNum)),
dim, m_info.m_lx, m_info.m_ly, zsize, bigEndian ? 1 : 0);
}
//---------------------------------------------------------
void SgiWriter::writeLine(char *buffer) {
if (BPP(m_header->type) == 1) {
if (m_header->dim < 3) // 32->8
{
new_putrow(m_header, buffer, m_currentY, 0);
} else {
std::vector<UCHAR> rbuf(m_info.m_lx), gbuf(m_info.m_lx),
bbuf(m_info.m_lx), mbuf(m_info.m_lx);
TPixelRGBM32 *pix = (TPixelRGBM32 *)buffer;
for (int i = 0; i < m_info.m_lx; ++i) {
rbuf[i] = pix->r;
gbuf[i] = pix->g;
bbuf[i] = pix->b;
mbuf[i] = pix->m;
++pix;
}
new_putrow(m_header, &rbuf[0], m_currentY, 0);
new_putrow(m_header, &gbuf[0], m_currentY, 1);
new_putrow(m_header, &bbuf[0], m_currentY, 2);
if (m_header->zsize == 4) new_putrow(m_header, &mbuf[0], m_currentY, 3);
}
}
++m_currentY;
}
//---------------------------------------------------------
void SgiWriter::writeLine(short *buffer) {
assert(BPP(m_header->type) == 2);
{
if (m_header->dim < 3) {
std::vector<USHORT> tmp(m_info.m_lx);
TPixelRGBM64 *pix = (TPixelRGBM64 *)buffer;
for (int i = 0; i < m_info.m_lx; ++i) {
tmp[i] = TPixelGR16::from(*pix).value;
++pix;
}
new_putrow(m_header, &tmp[0], m_currentY, 0);
} else {
std::vector<USHORT> rbuf(m_info.m_lx), gbuf(m_info.m_lx),
bbuf(m_info.m_lx), mbuf(m_info.m_lx);
TPixelRGBM64 *pix = (TPixelRGBM64 *)buffer;
for (int i = 0; i < m_info.m_lx; ++i) {
rbuf[i] = pix->r;
gbuf[i] = pix->g;
bbuf[i] = pix->b;
mbuf[i] = pix->m;
++pix;
}
new_putrow(m_header, &rbuf[0], m_currentY, 0);
new_putrow(m_header, &gbuf[0], m_currentY, 1);
new_putrow(m_header, &bbuf[0], m_currentY, 2);
if (m_header->zsize == 4) new_putrow(m_header, &mbuf[0], m_currentY, 3);
}
}
++m_currentY;
}
//=========================================================
Tiio::SgiWriterProperties::SgiWriterProperties()
: m_pixelSize("Bits Per Pixel")
, m_endianess("Endianess")
, m_compressed("RLE-Compressed", false) {
m_pixelSize.addValue(L"24 bits");
m_pixelSize.addValue(L"32 bits");
m_pixelSize.addValue(L"48 bits");
m_pixelSize.addValue(L"64 bits");
m_pixelSize.addValue(L"8 bits (Greyscale)");
m_pixelSize.setValue(L"32 bits");
bind(m_pixelSize);
bind(m_compressed);
m_endianess.addValue(L"Big Endian");
m_endianess.addValue(L"Little Endian");
bind(m_endianess);
}
void Tiio::SgiWriterProperties::updateTranslation() {
m_pixelSize.setQStringName(tr("Bits Per Pixel"));
m_pixelSize.setItemUIName(L"24 bits", tr("24 bits"));
m_pixelSize.setItemUIName(L"32 bits", tr("32 bits"));
m_pixelSize.setItemUIName(L"48 bits", tr("48 bits"));
m_pixelSize.setItemUIName(L"64 bits", tr("64 bits"));
m_pixelSize.setItemUIName(L"8 bits (Greyscale)", tr("8 bits (Greyscale)"));
m_endianess.setQStringName(tr("Endianess"));
m_endianess.setItemUIName(L"Big Endian", tr("Big Endian"));
m_endianess.setItemUIName(L"Little Endian", tr("Little Endian"));
m_compressed.setQStringName(tr("RLE-Compressed"));
}