ref: 2c6cc121339ade33ac5aa4b46356df1cd5469fbe
dir: /sys/src/cmd/aux/antiword/riscos.c/
/*
* riscos.c
* Copyright (C) 2001,2002 A.J. van Os; Released under GPL
*
* Description:
* RISC OS only functions
*/
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include "DeskLib:Error.h"
#include "DeskLib:SWI.h"
#include "antiword.h"
#if !defined(DrawFile_Render)
#define DrawFile_Render 0x045540
#endif /* !DrawFile_Render */
#if !defined(JPEG_Info)
#define JPEG_Info 0x049980
#endif /* !JPEG_Info */
/*
* werr - write an error message and exit if needed
*/
void
werr(int iFatal, const char *szFormat, ...)
{
va_list tArg;
va_start(tArg, szFormat);
Error_Report(iFatal, (char *)szFormat, tArg);
va_end(tArg);
switch (iFatal) {
case 0: /* The message is just a warning, so no exit */
return;
case 1: /* Fatal error with a standard exit */
exit(EXIT_FAILURE);
default: /* Fatal error with a non-standard exit */
exit(iFatal);
}
} /* end of werr */
/*
* iGetFiletype
* This function will get the filetype of the given file.
* returns the filetype.
*/
int
iGetFiletype(const char *szFilename)
{
os_error *e;
int iType;
fail(szFilename == NULL || szFilename[0] == '\0');
e = SWI(2, 7, SWI_OS_File | XOS_Bit,
23, szFilename,
NULL, NULL, NULL, NULL, NULL, NULL, &iType);
if (e == NULL) {
return iType;
}
werr(0, "Get Filetype error %d: %s", e->errnum, e->errmess);
return -1;
} /* end of iGetFiletype */
/*
* vSetFiletype
* This procedure will set the filetype of the given file to the given
* type.
*/
void
vSetFiletype(const char *szFilename, int iFiletype)
{
os_error *e;
fail(szFilename == NULL || szFilename[0] == '\0');
if (iFiletype < 0x000 || iFiletype > 0xfff) {
return;
}
e = SWI(3, 0, SWI_OS_File | XOS_Bit,
18, szFilename, iFiletype);
if (e != NULL) {
switch (e->errnum) {
case 0x000113: /* ROM */
case 0x0104e1: /* Read-only floppy DOSFS */
case 0x0108c9: /* Read-only floppy ADFS */
case 0x013803: /* Read-only ArcFS */
case 0x80344a: /* CD-ROM */
break;
default:
werr(0, "Set Filetype error %d: %s",
e->errnum, e->errmess);
break;
}
}
} /* end of vSetFileType */
/*
* Check if the directory part of the given file exists, make the directory
* if it does not exist yet.
* Returns TRUE in case of success, otherwise FALSE.
*/
BOOL
bMakeDirectory(const char *szFilename)
{
os_error *e;
char *pcLastDot;
int iObjectType;
char szDirectory[PATH_MAX+1];
DBG_MSG("bMakeDirectory");
fail(szFilename == NULL || szFilename[0] == '\0');
DBG_MSG(szFilename);
if (strlen(szFilename) >= sizeof(szDirectory)) {
DBG_DEC(strlen(szFilename));
return FALSE;
}
strcpy(szDirectory, szFilename);
pcLastDot = strrchr(szDirectory, '.');
if (pcLastDot == NULL) {
/* No directory equals current directory */
DBG_MSG("No directory part given");
return TRUE;
}
*pcLastDot = '\0';
DBG_MSG(szDirectory);
/* Check if the name exists */
e = SWI(2, 1, SWI_OS_File | XOS_Bit,
17, szDirectory,
&iObjectType);
if (e != NULL) {
werr(0, "Directory check %d: %s", e->errnum, e->errmess);
return FALSE;
}
if (iObjectType == 2) {
/* The name exists and it is a directory */
DBG_MSG("The directory already exists");
return TRUE;
}
if (iObjectType != 0) {
/* The name exists and it is not a directory */
DBG_DEC(iObjectType);
return FALSE;
}
/* The name does not exist, make the directory */
e = SWI(5, 0, SWI_OS_File | XOS_Bit,
8, szDirectory, 0, 0, 0);
if (e != NULL) {
werr(0, "I can't make a directory %d: %s",
e->errnum, e->errmess);
return FALSE;
}
return TRUE;
} /* end of bMakeDirectory */
/*
* iReadCurrentAlphabetNumber
* This function reads the current Alphabet number.
* Returns the current Alphabet number when successful, otherwise -1
*/
int
iReadCurrentAlphabetNumber(void)
{
os_error *e;
int iAlphabetNumber;
e = SWI(2, 2, SWI_OS_Byte | XOS_Bit,
71, 127,
NULL, &iAlphabetNumber);
if (e == NULL) {
return iAlphabetNumber;
}
werr(0, "Read alphabet error %d: %s", e->errnum, e->errmess);
return -1;
} /* end of iReadCurrentAlphabetNumber */
/*
* iGetRiscOsVersion - get the RISC OS version number
*
* returns the RISC OS version * 100
*/
int
iGetRiscOsVersion(void)
{
os_error *e;
int iVersion;
e = SWI(3, 2, SWI_OS_Byte | XOS_Bit,
129, 0, 0xff,
NULL, &iVersion);
if (e != NULL) {
werr(0, "Read RISC OS version error %d: %s",
e->errnum, e->errmess);
return 0;
}
switch (iVersion) {
case 0xa0: /* Arthur 1.20 */
return 120;
case 0xa1: /* RISC OS 2.00 */
return 200;
case 0xa2: /* RISC OS 2.01 */
return 201;
case 0xa3: /* RISC OS 3.00 */
return 300;
case 0xa4: /* RISC OS 3.1x */
return 310;
case 0xa5: /* RISC OS 3.50 */
return 350;
case 0xa6: /* RISC OS 3.60 */
return 360;
case 0xa7: /* RISC OS 3.7x */
return 370;
case 0xa8: /* RISC OS 4.0x */
return 400;
default:
if (iVersion >= 0xa9 && iVersion <= 0xaf) {
/* RISC OS 4.10 and up */
return 410;
}
/* Unknown version */
return 0;
}
} /* end of iGetRiscOsVersion */
#if defined(DEBUG)
BOOL
bGetJpegInfo(UCHAR *pucJpeg, size_t tJpegSize)
{
os_error *e;
int iReg0, iReg4, iReg5;
e = SWI(3, 6, JPEG_Info | XOS_Bit,
0x00, pucJpeg, tJpegSize,
&iReg0, NULL, NULL, NULL, &iReg4, &iReg5);
if (e == NULL) {
if (iReg0 & BIT(2)) {
DBG_MSG("Pixel density is a simple ratio");
} else {
DBG_MSG("Pixel density is in dpi");
}
DBG_DEC(iReg4);
DBG_DEC(iReg5);
return TRUE;
}
werr(0, "JPEG Info error %d: %s", e->errnum, e->errmess);
return FALSE;
} /* end of bGetJpegInfo */
#endif /* DEBUG */