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GFILE: restructure files, add File Listing, add C String files

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Fix compile error for ChibiOS BaseStreamFile based GFILES'.
This commit is contained in:
inmarket 2014-08-12 16:43:45 +10:00
parent 6ff7d90500
commit 10902154ae
14 changed files with 1183 additions and 714 deletions
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2
docs/releases.txt
View File

@ -22,6 +22,8 @@ FEATURE: Added support for the RawOS real time operating system
FEATURE: Operating System initialisation is now optional
FEATURE: Added optional transparency to container
FEATURE: Prevent mouse events going to obscured widgets
FEATURE: Add GFILE support for file lists
FEATURE: Add GFILE support for C strings as files
*** Release 2.1 ***

7
gfxconf.example.h
View File

@ -224,10 +224,8 @@
//#define GFILE_NEED_PRINTG FALSE
//#define GFILE_NEED_SCANG FALSE
//#define GFILE_NEED_STRINGS FALSE
//#define GFILE_NEED_FILELISTS FALSE
//#define GFILE_NEED_STDIO FALSE
// #define GFILE_ALLOW_FLOATS FALSE
// #define GFILE_ALLOW_DEVICESPECIFIC FALSE
// #define GFILE_MAX_GFILES 3
//#define GFILE_NEED_NOAUTOMOUNT FALSE
//#define GFILE_NEED_NOAUTOSYNC FALSE
@ -238,6 +236,9 @@
//#define GFILE_NEED_NATIVEFS FALSE
//#define GFILE_NEED_CHBIOSFS FALSE
//#define GFILE_ALLOW_FLOATS FALSE
//#define GFILE_ALLOW_DEVICESPECIFIC FALSE
//#define GFILE_MAX_GFILES 3
///////////////////////////////////////////////////////////////////////////
// GADC //

794
src/gfile/gfile.c
View File

@ -35,6 +35,11 @@ struct GFILE {
long int pos;
};
struct gfileList {
const struct GFILEVMT * vmt;
bool_t dirs;
};
typedef struct GFILEVMT {
const struct GFILEVMT * next;
uint8_t flags;
@ -59,6 +64,11 @@ typedef struct GFILEVMT {
bool_t (*mount) (const char *drive);
bool_t (*unmount) (const char *drive);
bool_t (*sync) (GFILE *f);
#if GFILE_NEED_FILELISTS
gfileList * (*flopen) (const char *path, bool_t dirs);
const char *(*flread) (gfileList *pfl);
void (*flclose) (gfileList *pfl);
#endif
} GFILEVMT;
// The chain of FileSystems
@ -70,6 +80,9 @@ GFILE *gfileStdIn;
GFILE *gfileStdOut;
GFILE *gfileStdErr;
// Forward definition used by some special open calls
static GFILE *findemptyfile(const char *mode);
/**
* The order of the file-systems below determines the order
* that they are searched to find a file.
@ -118,6 +131,34 @@ GFILE *gfileStdErr;
#include "src/gfile/inc_romfs.c"
#endif
/********************************************************
* The virtual string file VMT
********************************************************/
#if GFILE_NEED_STRINGS
#include "src/gfile/inc_strings.c"
#endif
/********************************************************
* Printg Routines
********************************************************/
#if GFILE_NEED_PRINTG
#include "src/gfile/inc_printg.c"
#endif
/********************************************************
* Scang Routines
********************************************************/
#if GFILE_NEED_SCANG
#include "src/gfile/inc_scang.c"
#endif
/********************************************************
* Stdio Emulation Routines
********************************************************/
#if GFILE_NEED_STDIO
#include "src/gfile/inc_stdio.c"
#endif
/********************************************************
* IO routines
********************************************************/
@ -251,39 +292,48 @@ bool_t gfileRename(const char *oldname, const char *newname) {
return FALSE;
}
static uint16_t mode2flags(const char *mode) {
uint16_t flags;
static GFILE *findemptyfile(const char *mode) {
GFILE * f;
switch(mode[0]) {
case 'r':
flags = GFILEFLG_READ|GFILEFLG_MUSTEXIST;
while (*++mode) {
// First find an available GFILE slot.
for (f = gfileArr; f < &gfileArr[GFILE_MAX_GFILES]; f++) {
if (!(f->flags & GFILEFLG_OPEN)) {
// Get the flags
switch(mode[0]) {
case '+': flags |= GFILEFLG_WRITE; break;
case 'b': flags |= GFILEFLG_BINARY; break;
case 'r':
f->flags = GFILEFLG_READ|GFILEFLG_MUSTEXIST;
while (*++mode) {
switch(mode[0]) {
case '+': f->flags |= GFILEFLG_WRITE; break;
case 'b': f->flags |= GFILEFLG_BINARY; break;
}
}
break;
case 'w':
f->flags = GFILEFLG_WRITE|GFILEFLG_TRUNC;
while (*++mode) {
switch(mode[0]) {
case '+': f->flags |= GFILEFLG_READ; break;
case 'b': f->flags |= GFILEFLG_BINARY; break;
case 'x': f->flags |= GFILEFLG_MUSTNOTEXIST; break;
}
}
break;
case 'a':
f->flags = GFILEFLG_WRITE|GFILEFLG_APPEND;
while (*++mode) {
switch(mode[0]) {
case '+': f->flags |= GFILEFLG_READ; break;
case 'b': f->flags |= GFILEFLG_BINARY; break;
case 'x': f->flags |= GFILEFLG_MUSTNOTEXIST; break;
}
}
break;
default:
return 0;
}
return f;
}
return flags;
case 'w':
flags = GFILEFLG_WRITE|GFILEFLG_TRUNC;
while (*++mode) {
switch(mode[0]) {
case '+': flags |= GFILEFLG_READ; break;
case 'b': flags |= GFILEFLG_BINARY; break;
case 'x': flags |= GFILEFLG_MUSTNOTEXIST; break;
}
}
return flags;
case 'a':
flags = GFILEFLG_WRITE|GFILEFLG_APPEND;
while (*++mode) {
switch(mode[0]) {
case '+': flags |= GFILEFLG_READ; break;
case 'b': flags |= GFILEFLG_BINARY; break;
case 'x': flags |= GFILEFLG_MUSTNOTEXIST; break;
}
}
return flags;
}
return 0;
}
@ -307,112 +357,34 @@ static bool_t testopen(const GFILEVMT *p, GFILE *f, const char *fname) {
}
GFILE *gfileOpen(const char *fname, const char *mode) {
uint16_t flags;
GFILE * f;
const GFILEVMT *p;
// Get the requested mode
if (!(flags = mode2flags(mode)))
// Get an empty file and set the flags
if (!(f = findemptyfile(mode)))
return 0;
#if GFILE_ALLOW_DEVICESPECIFIC
if (fname[0] && fname[1] == '|') {
// First find an available GFILE slot.
for (f = gfileArr; f < &gfileArr[GFILE_MAX_GFILES]; f++) {
if (!(f->flags & GFILEFLG_OPEN)) {
// Try to open the file
f->flags = flags;
for(p = FsChain; p; p = p->next) {
if (p->prefix == fname[0])
return testopen(p, f, fname+2) ? f : 0;
}
// File not found
break;
}
for(p = FsChain; p; p = p->next) {
if (p->prefix == fname[0])
return testopen(p, f, fname+2) ? f : 0;
}
// No available slot
// File not found
return 0;
}
#endif
// First find an available GFILE slot.
for (f = gfileArr; f < &gfileArr[GFILE_MAX_GFILES]; f++) {
if (!(f->flags & GFILEFLG_OPEN)) {
// Try to open the file
f->flags = flags;
for(p = FsChain; p; p = p->next) {
if (testopen(p, f, fname))
return f;
}
// File not found
break;
}
for(p = FsChain; p; p = p->next) {
if (testopen(p, f, fname))
return f;
}
// No available slot
// File not found
return 0;
}
#if GFILE_NEED_CHIBIOSFS && GFX_USE_OS_CHIBIOS
GFILE * gfileOpenBaseFileStream(void *BaseFileStreamPtr, const char *mode) {
GFILE * f;
// First find an available GFILE slot.
for (f = gfileArr; f < &gfileArr[GFILE_MAX_GFILES]; f++) {
if (!(f->flags & GFILEFLG_OPEN)) {
// Get the flags
if (!(f->flags = mode2flags(mode)))
return 0;
// If we want write but the fs doesn't allow it then return
if ((f->flags & GFILEFLG_WRITE) && !(FsCHIBIOSVMT.flags & GFSFLG_WRITEABLE))
return 0;
// File is open - fill in all the details
f->vmt = &FsCHIBIOSVMT;
f->obj = BaseFileStreamPtr;
f->pos = 0;
f->flags |= GFILEFLG_OPEN|GFILEFLG_CANSEEK;
return f;
}
}
// No available slot
return 0;
}
#endif
#if GFILE_NEED_MEMFS
GFILE * gfileOpenMemory(void *memptr, const char *mode) {
GFILE * f;
// First find an available GFILE slot.
for (f = gfileArr; f < &gfileArr[GFILE_MAX_GFILES]; f++) {
if (!(f->flags & GFILEFLG_OPEN)) {
// Get the flags
if (!(f->flags = mode2flags(mode)))
return 0;
// If we want write but the fs doesn't allow it then return
if ((f->flags & GFILEFLG_WRITE) && !(FsMemVMT.flags & GFSFLG_WRITEABLE))
return 0;
// File is open - fill in all the details
f->vmt = &FsMemVMT;
f->obj = memptr;
f->pos = 0;
f->flags |= GFILEFLG_OPEN|GFILEFLG_CANSEEK;
return f;
}
}
// No available slot
return 0;
}
#endif
void gfileClose(GFILE *f) {
if (!f || !(f->flags & GFILEFLG_OPEN))
return;
@ -512,579 +484,35 @@ bool_t gfileSync(GFILE *f) {
return f->vmt->sync(f);
}
/********************************************************
* String VMT routines
********************************************************/
#if GFILE_NEED_STRINGS && (GFILE_NEED_PRINTG || GFILE_NEED_SCANG)
#include <string.h>
#if GFILE_NEED_FILELISTS
gfileList *gfileOpenFileList(char fs, const char *path, bool_t dirs) {
const GFILEVMT *p;
gfileList * pfl;
// Special String VMT
static int StringRead(GFILE *f, void *buf, int size) {
(void) size;
// size must be 1 for a complete read
if (!((char *)f->obj)[f->pos])
return 0;
((char *)buf)[0] = ((char *)f->obj)[f->pos];
return 1;
}
static int StringWrite(GFILE *f, const void *buf, int size) {
(void) size;
// size must be 1 for a complete write
((char *)f->obj)[f->pos] = ((char *)buf)[0];
return 1;
}
static const GFILEVMT StringVMT = {
0, // next
0, // flags
'_', // prefix
0, 0, 0, 0,
0, 0, StringRead, StringWrite,
0, 0, 0,
0, 0, 0
};
#endif
/********************************************************
* printg routines
********************************************************/
#if GFILE_NEED_PRINTG
#include <stdarg.h>
#define MAX_FILLER 11
#define FLOAT_PRECISION 100000
int fnprintg(GFILE *f, int maxlen, const char *fmt, ...) {
int res;
va_list ap;
va_start(ap, fmt);
res = vfnprintg(f, maxlen, fmt, ap);
va_end(ap);
return res;
}
static char *ltoa_wd(char *p, long num, unsigned radix, long divisor) {
int i;
char * q;
if (!divisor) divisor = num;
q = p + MAX_FILLER;
do {
i = (int)(num % radix);
i += '0';
if (i > '9')
i += 'A' - '0' - 10;
*--q = i;
num /= radix;
} while ((divisor /= radix) != 0);
i = (int)(p + MAX_FILLER - q);
do {
*p++ = *q++;
} while (--i);
return p;
}
int vfnprintg(GFILE *f, int maxlen, const char *fmt, va_list arg) {
int ret;
char *p, *s, c, filler;
int i, precision, width;
bool_t is_long, left_align;
long l;
#if GFILE_ALLOW_FLOATS
float f;
char tmpbuf[2*MAX_FILLER + 1];
#else
char tmpbuf[MAX_FILLER + 1];
#endif
ret = 0;
if (maxlen < 0)
return 0;
if (!maxlen)
maxlen = -1;
while (*fmt) {
if (*fmt != '%') {
gfileWrite(f, fmt, 1);
ret++; if (!--maxlen) return ret;
fmt++;
continue;
}
fmt++;
p = s = tmpbuf;
left_align = FALSE;
filler = ' ';
width = 0;
precision = 0;
if (*fmt == '-') {
fmt++;
left_align = TRUE;
}
if (*fmt == '.') {
fmt++;
filler = '0';
}
while (1) {
c = *fmt++;
if (c >= '0' && c <= '9') {
c -= '0';
width = width * 10 + c;
} else if (c == '*')
width = va_arg(arg, int);
else
break;
}
if (c == '.') {
while (1) {
c = *fmt++;
if (c >= '0' && c <= '9') {
c -= '0';
precision = precision * 10 + c;
} else if (c == '*')
precision = va_arg(arg, int);
else
break;
}
}
/* Long modifier.*/
if (c == 'l' || c == 'L') {
is_long = TRUE;
if (*fmt)
c = *fmt++;
}
else
is_long = (c >= 'A') && (c <= 'Z');
/* Command decoding.*/
switch (c) {
case 0:
return ret;
case 'c':
filler = ' ';
*p++ = va_arg(arg, int);
break;
case 's':
filler = ' ';
if ((s = va_arg(arg, char *)) == 0)
s = "(null)";
if (precision == 0)
precision = 32767;
for (p = s; *p && (--precision >= 0); p++);
break;
case 'D':
case 'd':
if (is_long)
l = va_arg(arg, long);
else
l = va_arg(arg, int);
if (l < 0) {
*p++ = '-';
l = -l;
}
p = ltoa_wd(p, l, 10, 0);
break;
#if GFILE_ALLOW_FLOATS
case 'f':
f = (float) va_arg(arg, double);
if (f < 0) {
*p++ = '-';
f = -f;
}
l = f;
p = ltoa_wd(p, l, 10, 0);
*p++ = '.';
l = (f - l) * FLOAT_PRECISION;
p = ltoa_wd(p, l, 10, FLOAT_PRECISION / 10);
break;
#endif
case 'X':
case 'x':
c = 16;
goto unsigned_common;
case 'U':
case 'u':
c = 10;
goto unsigned_common;
case 'O':
case 'o':
c = 8;
unsigned_common:
if (is_long)
l = va_arg(arg, long);
else
l = va_arg(arg, int);
p = ltoa_wd(p, l, c, 0);
break;
default:
*p++ = c;
break;
}
i = (int)(p - s);
if ((width -= i) < 0)
width = 0;
if (left_align == FALSE)
width = -width;
if (width < 0) {
if (*s == '-' && filler == '0') {
gfileWrite(f, s++, 1);
ret++; if (!--maxlen) return ret;
i--;
}
do {
gfileWrite(f, &filler, 1);
ret++; if (!--maxlen) return ret;
} while (++width != 0);
}
while (--i >= 0) {
gfileWrite(f, s++, 1);
ret++; if (!--maxlen) return ret;
}
while (width) {
gfileWrite(f, &filler, 1);
ret++; if (!--maxlen) return ret;
width--;
}
}
return ret;
}
#if GFILE_NEED_STRINGS
int snprintg(char *buf, int maxlen, const char *fmt, ...) {
int res;
GFILE f;
va_list ap;
if (maxlen <= 1) {
if (maxlen == 1) {
*buf = 0;
// Find the correct VMT
for(p = FsChain; p; p = p->next) {
if (p->prefix == fs) {
if (!p->flopen)
return 0;
pfl = p->flopen(path, dirs);
if (pfl) {
pfl->vmt = p;
pfl->dirs = dirs;
}
maxlen += 1;
}
f.flags = GFILEFLG_OPEN|GFILEFLG_WRITE;
f.vmt = &StringVMT;
f.pos = 0;
f.obj = buf;
va_start(ap, fmt);
res = vfnprintg(&f, maxlen-1, fmt, ap);
va_end(ap);
buf[res] = 0;
return res;
}
int vsnprintg(char *buf, int maxlen, const char *fmt, va_list arg) {
int res;
GFILE f;
if (maxlen <= 1) {
if (maxlen == 1) {
*buf = 0;
return 0;
}
maxlen += 1;
}
f.flags = GFILEFLG_OPEN|GFILEFLG_WRITE;
f.vmt = &StringVMT;
f.pos = 0;
f.obj = buf;
res = vfnprintg(&f, maxlen-1, fmt, arg);
buf[res] = 0;
return res;
}
#endif
#endif
/********************************************************
* scang routines
********************************************************/
#if GFILE_NEED_SCANG
int fscang(GFILE *f, const char *fmt, ...) {
int res;
va_list ap;
va_start(ap, fmt);
res = vfscang(f, fmt, ap);
va_end(ap);
return res;
}
int vfscang(GFILE *f, const char *fmt, va_list arg) {
int res, width, size, base;
unsigned long num;
char c;
bool_t assign, negate;
char *p;
for(res = 0; *fmt; fmt++) {
switch(*fmt) {
case ' ': case '\t': case '\r': case '\n': case '\v': case '\f':
break;
case '%':
fmt++;
assign = TRUE;
negate = FALSE;
width = 0;
size = 1;
num = 0;
if (*fmt == '*') {
fmt++;
assign = FALSE;
}
while(*fmt >= '0' && *fmt <= '9')
width = width * 10 + (*fmt++ - '0');
if (*fmt == 'h') {
fmt++;
size = 0;
} else if (*fmt == 'l') {
fmt++;
size = 2;
} else if (*fmt == 'L') {
fmt++;
size = 3;
}
switch(*fmt) {
case 0:
return res;
case '%':
goto matchchar;
case 'c':
if (!width) {
while(1) {
if (!gfileRead(f, &c, 1)) return res;
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': continue;
}
break;
}
width = 1;
} else {
if (!gfileRead(f, &c, 1)) return res;
}
if (assign) {
p = va_arg(arg, char *);
res++;
*p++ = c;
}
while(--width) {
if (!gfileRead(f, &c, 1)) return res;
if (assign) *p++ = c;
}
break;
case 's':
while(1) {
if (!gfileRead(f, &c, 1)) return res;
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': continue;
}
break;
}
if (assign) {
p = va_arg(arg, char *);
res++;
*p++ = c;
}
if (width) {
while(--width) {
if (!gfileRead(f, &c, 1)) {
if (assign) *((char *)p) = 0;
return res;
}
if (assign) *p++ = c;
}
} else {
while(1) {
if (!gfileRead(f, &c, 1)) {
if (assign) *((char *)p) = 0;
return res;
}
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': break;
default:
if (assign) *p++ = c;
continue;
}
break;
}
//ungetch(c);
}
if (assign) *p = 0;
break;
case 'd': base = 10; goto getnum;
case 'i': base = -1; goto getnum;
case 'o': base = 8; goto getnum;
case 'u': base = 10; goto getnum;
case 'x': base = 16; goto getnum;
case 'b': base = 2;
getnum:
while(1) {
if (!gfileRead(f, &c, 1)) return res;
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': continue;
}
break;
}
if (c == '-' && *fmt != 'u') {
negate = TRUE;
if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
}
if (base == -1) {
if (c == '0') {
if ((width && !--width) || !gfileRead(f, &c, 1)) goto assignnum;
switch(c) {
case 'x': case 'X':
base = 16;
if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
break;
case 'b': case 'B':
base = 2;
if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
break;
default:
base = 8;
break;
}
} else
base = 10;
}
while(1) {
if (c >= '0' && c <= '9' && c - '0' < base)
num = num * base + (c - '0');
else if (c >= 'A' && c <= 'F' && base == 16)
num = num * base + (c - ('A'-10));
else if (c >= 'a' && c <= 'f' && base == 16)
num = num * base + (c - ('a'-10));
else {
// ungetch(c)
break;
}
if ((width && !--width) || !gfileRead(f, &c, 1))
break;
}
assignnum:
if (negate)
num = -num;
if (assign) {
switch(size) {
case 0: // short
p = (char *)va_arg(arg, short *);
res++;
*((short *)p) = (short)num;
case 1: // int
p = (char *)va_arg(arg, int *);
res++;
*((int *)p) = (int)num;
case 2: case 3: // long
p = (char *)va_arg(arg, long *);
res++;
*((long *)p) = (long)num;
}
}
break;
#if GFILE_ALLOW_FLOATS
case 'e': case 'f': case 'g':
// TODO
#endif
default:
return res;
}
break;
default:
matchchar:
while(1) {
if (!gfileRead(f, &c, 1)) return res;
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': continue;
}
break;
}
if (c != *fmt) return res;
break;
return pfl;
}
}
return res;
}
#if GFILE_NEED_STRINGS
int sscang(const char *buf, const char *fmt, ...) {
int res;
GFILE f;
va_list ap;
f.flags = GFILEFLG_OPEN|GFILEFLG_READ;
f.vmt = &StringVMT;
f.pos = 0;
f.obj = (void *)buf;
va_start(ap, fmt);
res = vfscang(&f, fmt, ap);
va_end(ap);
return res;
}
int vsscang(const char *buf, const char *fmt, va_list arg) {
int res;
GFILE f;
f.flags = GFILEFLG_OPEN|GFILEFLG_READ;
f.vmt = &StringVMT;
f.pos = 0;
f.obj = (void *)buf;
res = vfscang(&f, fmt, arg);
return res;
}
#endif
#endif
/********************************************************
* stdio emulation routines
********************************************************/
#if GFILE_NEED_STDIO
size_t gstdioRead(void * ptr, size_t size, size_t count, FILE *f) {
return gfileRead(f, ptr, size*count)/size;
}
size_t gstdioWrite(const void * ptr, size_t size, size_t count, FILE *f) {
return gfileWrite(f, ptr, size*count)/size;
}
int gstdioSeek(FILE *f, size_t offset, int origin) {
switch(origin) {
case SEEK_SET:
break;
case SEEK_CUR:
offset += f->pos;
break;
case SEEK_END:
offset += gfileGetSize(f);
break;
default:
return -1;
}
return gfileSetPos(f, offset) ? 0 : -1;
}
int gstdioGetpos(FILE *f, long int *pos) {
if (!(f->flags & GFILEFLG_OPEN))
return -1;
*pos = f->pos;
return 0;
}
const char *gfileReadFileList(gfileList *pfl) {
return pfl->vmt->flread ? pfl->vmt->flread(pfl) : 0;
}
void gfileCloseFileList(gfileList *pfl) {
if (pfl->vmt->flclose)
pfl->vmt->flclose(pfl);
}
#endif
#endif /* GFX_USE_GFILE */

33
src/gfile/inc_chibiosfs.c
View File

@ -27,22 +27,39 @@ static const GFILEVMT FsCHIBIOSVMT = {
0, 0, 0, 0,
0, ChibiOSBFSClose, ChibiOSBFSRead, ChibiOSBFSWrite,
ChibiOSBFSSetpos, ChibiOSBFSGetsize, ChibiOSBFSEof,
0, 0,
0
0, 0, 0,
#if GFILE_NEED_FILELISTS
0, 0, 0,
#endif
};
static void ChibiOSBFSClose(GFILE *f) {
chFileStreamClose(((BaseFileStream *)f->fd));
chFileStreamClose(((BaseFileStream *)f->obj));
}
static int ChibiOSBFSRead(GFILE *f, void *buf, int size) {
return chSequentialStreamRead(((BaseFileStream *)f->fd), (uint8_t *)buf, size);
return chSequentialStreamRead(((BaseFileStream *)f->obj), (uint8_t *)buf, size);
}
static int ChibiOSBFSWrite(GFILE *f, const void *buf, int size) {
return chSequentialStreamWrite(((BaseFileStream *)f->fd), (uint8_t *)buf, size);
return chSequentialStreamWrite(((BaseFileStream *)f->obj), (uint8_t *)buf, size);
}
static bool_t ChibiOSBFSSetpos(GFILE *f, long int pos) {
chFileStreamSeek(((BaseFileStream *)f->fd), pos);
chFileStreamSeek(((BaseFileStream *)f->obj), pos);
return TRUE;
}
static long int ChibiOSBFSGetsize(GFILE *f) { return chFileStreamGetSize(((BaseFileStream *)f->fd)); }
static bool_t ChibiOSBFSEof(GFILE *f) { return f->pos >= chFileStreamGetSize(((BaseFileStream *)f->fd)); }
static long int ChibiOSBFSGetsize(GFILE *f) { return chFileStreamGetSize(((BaseFileStream *)f->obj)); }
static bool_t ChibiOSBFSEof(GFILE *f) { return f->pos >= chFileStreamGetSize(((BaseFileStream *)f->obj)); }
GFILE * gfileOpenBaseFileStream(void *BaseFileStreamPtr, const char *mode) {
GFILE * f;
// Get an empty file and set the flags
if (!(f = findemptyfile(mode)))
return 0;
// File is open - fill in all the details
f->vmt = &FsCHIBIOSVMT;
f->obj = BaseFileStreamPtr;
f->pos = 0;
f->flags |= GFILEFLG_OPEN|GFILEFLG_CANSEEK;
return f;
}

81
src/gfile/inc_fatfs.c
View File

@ -30,6 +30,11 @@ static bool_t fatfsEOF(GFILE* f);
static bool_t fatfsMount(const char* drive);
static bool_t fatfsUnmount(const char* drive);
static bool_t fatfsSync(GFILE* f);
#if _FS_MINIMIZE <= 1 && GFILE_NEED_FILELISTS
static gfileList *fatfsFlOpen(const char *path, bool_t dirs);
static const char *fatfsFlRead(gfileList *pfl);
static void fatfsFlClose(gfileList *pfl);
#endif
static const GFILEVMT FsFatFSVMT = {
GFILE_CHAINHEAD,
@ -46,14 +51,29 @@ static const GFILEVMT FsFatFSVMT = {
fatfsSetPos,
fatfsGetSize,
fatfsEOF,
fatfsMount,
fatfsUnmount,
fatfsSync
fatfsMount, fatfsUnmount, fatfsSync,
#if GFILE_NEED_FILELISTS
#if _FS_MINIMIZE <= 1
fatfsFlOpen, fatfsFlRead, fatfsFlClose
#else
0, 0, 0
#endif
#endif
};
#undef GFILE_CHAINHEAD
#define GFILE_CHAINHEAD &FsFatFSVMT
// Our directory list structure
typedef struct fatfsList {
gfileList fl; // This must be the first element.
DIR dir;
FILINFO fno;
#if _USE_LFN
char lfn[_MAX_LFN + 1]; /* Buffer to store the LFN */
#endif
} fatfsList;
// optimize these later on. Use an array to have multiple FatFS
static bool_t fatfs_mounted = FALSE;
static FATFS fatfs_fs;
@ -245,3 +265,58 @@ static bool_t fatfsSync(GFILE *f)
return TRUE;
}
#if _FS_MINIMIZE <= 1 && GFILE_NEED_FILELISTS
static gfileList *fatfsFlOpen(const char *path, bool_t dirs) {
fatfsList *p;
(void) dirs;
if (!(p = gfxAlloc(sizeof(fatfsList))))
return 0;
if (f_opendir(&p->dir, path) != FR_OK) {
gfxFree(p);
return 0;
}
return &p->fl;
}
static const char *fatfsFlRead(gfileList *pfl) {
#define ffl ((fatfsList *)pfl)
while(1) {
#if _USE_LFN
ffl->fno.lfname = ffl->lfn;
ffl->fno.lfsize = sizeof(ffl->lfn);
#endif
// Read the next entry
if (f_readdir(&ffl->dir, &ffl->fno) != FR_OK || !ffl->fno.fname[0])
return 0;
/* Ignore dot entries */
if (ffl->fno.fname[0] == '.') continue;
/* Is it a directory */
if (ffl->fl.dirs) {
if ((ffl->fno.fattrib & AM_DIR))
break;
} else {
if (!(ffl->fno.fattrib & AM_DIR))
break;
}
}
#if _USE_LFN
return ffl->fno.lfname[0] ? ffl->fno.lfname : ffl->fno.fname;
#else
return ffl->fno.fname;
#endif
#undef ffl
}
static void fatfsFlClose(gfileList *pfl) {
f_closedir(&((fatfsList *)pfl)->dir);
gfxFree(pfl);
}
#endif

21
src/gfile/inc_memfs.c
View File

@ -26,8 +26,10 @@ static const GFILEVMT FsMemVMT = {
0, 0, 0, 0,
0, 0, MEMRead, MEMWrite,
MEMSetpos, 0, 0,
0, 0,
0
0, 0, 0,
#if GFILE_NEED_FILELISTS
0, 0, 0,
#endif
};
static int MEMRead(GFILE *f, void *buf, int size) {
@ -43,3 +45,18 @@ static bool_t MEMSetpos(GFILE *f, long int pos) {
(void) pos;
return TRUE;
}
GFILE * gfileOpenMemory(void *memptr, const char *mode) {
GFILE *f;
// Get an empty file and set the flags
if (!(f = findemptyfile(mode)))
return 0;
// File is open - fill in all the details
f->vmt = &FsMemVMT;
f->obj = memptr;
f->pos = 0;
f->flags |= GFILEFLG_OPEN|GFILEFLG_CANSEEK;
return f;
}

116
src/gfile/inc_nativefs.c
View File

@ -33,6 +33,11 @@ static int NativeWrite(GFILE *f, const void *buf, int size);
static bool_t NativeSetpos(GFILE *f, long int pos);
static long int NativeGetsize(GFILE *f);
static bool_t NativeEof(GFILE *f);
#if GFILE_NEED_FILELISTS
static gfileList *NativeFlOpen(const char *path, bool_t dirs);
static const char *NativeFlRead(gfileList *pfl);
static void NativeFlClose(gfileList *pfl);
#endif
static const GFILEVMT FsNativeVMT = {
GFILE_CHAINHEAD, // next
@ -46,8 +51,10 @@ static const GFILEVMT FsNativeVMT = {
NativeDel, NativeExists, NativeFilesize, NativeRen,
NativeOpen, NativeClose, NativeRead, NativeWrite,
NativeSetpos, NativeGetsize, NativeEof,
0, 0,
0
0, 0, 0,
#if GFILE_NEED_FILELISTS
NativeFlOpen, NativeFlRead, NativeFlClose
#endif
};
#undef GFILE_CHAINHEAD
#define GFILE_CHAINHEAD &FsNativeVMT
@ -102,3 +109,108 @@ static long int NativeGetsize(GFILE *f) {
if (fstat(fileno((FILE *)f->obj), &st)) return -1;
return st.st_size;
}
#if GFILE_NEED_FILELISTS
#if defined(WIN32) || GFX_USE_OS_WIN32
typedef struct NativeFileList {
gfileList fl;
HANDLE d;
WIN32_FIND_DATA f;
bool_t first;
} NativeFileList;
static gfileList *NativeFlOpen(const char *path, bool_t dirs) {
NativeFileList *p;
(void) dirs;
if (!(p = gfxAlloc(sizeof(NativeFileList))))
return 0;
if ((p->d = FindFirstFile(path, &p->f)) == INVALID_HANDLE_VALUE) {
gfxFree(p);
return 0;
}
p->first = TRUE;
return &p->fl;
}
static const char *NativeFlRead(gfileList *pfl) {
#define nfl ((NativeFileList *)pfl)
while(1) {
if (!nfl->first && !FindNextFile(nfl->d, &nfl->f))
return 0;
nfl->first = FALSE;
if (nfl->f.cFileName[0] == '.')
continue;
if (nfl->fl.dirs) {
if ((nfl->f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
break;
} else {
if (!(nfl->f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
break;
}
}
return nfl->f.cFileName;
#undef nfl
}
static void NativeFlClose(gfileList *pfl) {
CloseHandle(((NativeFileList *)pfl)->d);
gfxFree(pfl);
}
#else
#include <dirent.h>
typedef struct NativeFileList {
gfileList fl;
DIR * d;
struct dirent * f;
} NativeFileList;
static gfileList *NativeFlOpen(const char *path, bool_t dirs) {
NativeFileList *p;
(void) dirs;
if (!(p = gfxAlloc(sizeof(NativeFileList))))
return 0;
if (!(p->d = opendir(path))) {
gfxFree(p);
return 0;
}
return &p->fl;
}
static const char *NativeFlRead(gfileList *pfl) {
#define nfl ((NativeFileList *)pfl)
while(1) {
if (!(nfl->f = readdir(nfl->d)))
return 0;
if (nfl->f->d_name[0] == '.')
continue;
#ifdef _DIRENT_HAVE_D_TYPE
if (nfl->fl.dirs) {
if (nfl->f->d_type == DT_DIR)
break;
} else {
if (nfl->f->d_type == DT_REG)
break;
}
#else
// Oops - no type field. We could use stat() here but that would mean
// concatting the supplied path to the found filename.
// That all just seems too hard. Instead we just don't
// distinguish between files and directories.
break;
#endif
}
return nfl->f->d_name;
#undef nfl
}
static void NativeFlClose(gfileList *pfl) {
closedir(((NativeFileList *)pfl)->d);
gfxFree(pfl);
}
#endif
#endif

261
src/gfile/inc_printg.c Normal file
View File

@ -0,0 +1,261 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* This file is included by src/gfile/gfile.c
*/
/********************************************************
* Printg Routines
********************************************************/
#include <stdarg.h>
#define MAX_FILLER 11
#define FLOAT_PRECISION 100000
int fnprintg(GFILE *f, int maxlen, const char *fmt, ...) {
int res;
va_list ap;
va_start(ap, fmt);
res = vfnprintg(f, maxlen, fmt, ap);
va_end(ap);
return res;
}
static char *ltoa_wd(char *p, long num, unsigned radix, long divisor) {
int i;
char * q;
if (!divisor) divisor = num;
q = p + MAX_FILLER;
do {
i = (int)(num % radix);
i += '0';
if (i > '9')
i += 'A' - '0' - 10;
*--q = i;
num /= radix;
} while ((divisor /= radix) != 0);
i = (int)(p + MAX_FILLER - q);
do {
*p++ = *q++;
} while (--i);
return p;
}
int vfnprintg(GFILE *f, int maxlen, const char *fmt, va_list arg) {
int ret;
char *p, *s, c, filler;
int i, precision, width;
bool_t is_long, left_align;
long l;
#if GFILE_ALLOW_FLOATS
float f;
char tmpbuf[2*MAX_FILLER + 1];
#else
char tmpbuf[MAX_FILLER + 1];
#endif
ret = 0;
if (maxlen < 0)
return 0;
if (!maxlen)
maxlen = -1;
while (*fmt) {
if (*fmt != '%') {
gfileWrite(f, fmt, 1);
ret++; if (!--maxlen) return ret;
fmt++;
continue;
}
fmt++;
p = s = tmpbuf;
left_align = FALSE;
filler = ' ';
width = 0;
precision = 0;
if (*fmt == '-') {
fmt++;
left_align = TRUE;
}
if (*fmt == '.') {
fmt++;
filler = '0';
}
while (1) {
c = *fmt++;
if (c >= '0' && c <= '9') {
c -= '0';
width = width * 10 + c;
} else if (c == '*')
width = va_arg(arg, int);
else
break;
}
if (c == '.') {
while (1) {
c = *fmt++;
if (c >= '0' && c <= '9') {
c -= '0';
precision = precision * 10 + c;
} else if (c == '*')
precision = va_arg(arg, int);
else
break;
}
}
/* Long modifier.*/
if (c == 'l' || c == 'L') {
is_long = TRUE;
if (*fmt)
c = *fmt++;
}
else
is_long = (c >= 'A') && (c <= 'Z');
/* Command decoding.*/
switch (c) {
case 0:
return ret;
case 'c':
filler = ' ';
*p++ = va_arg(arg, int);
break;
case 's':
filler = ' ';
if ((s = va_arg(arg, char *)) == 0)
s = "(null)";
if (precision == 0)
precision = 32767;
for (p = s; *p && (--precision >= 0); p++);
break;
case 'D':
case 'd':
if (is_long)
l = va_arg(arg, long);
else
l = va_arg(arg, int);
if (l < 0) {
*p++ = '-';
l = -l;
}
p = ltoa_wd(p, l, 10, 0);
break;
#if GFILE_ALLOW_FLOATS
case 'f':
f = (float) va_arg(arg, double);
if (f < 0) {
*p++ = '-';
f = -f;
}
l = f;
p = ltoa_wd(p, l, 10, 0);
*p++ = '.';
l = (f - l) * FLOAT_PRECISION;
p = ltoa_wd(p, l, 10, FLOAT_PRECISION / 10);
break;
#endif
case 'X':
case 'x':
c = 16;
goto unsigned_common;
case 'U':
case 'u':
c = 10;
goto unsigned_common;
case 'O':
case 'o':
c = 8;
unsigned_common:
if (is_long)
l = va_arg(arg, long);
else
l = va_arg(arg, int);
p = ltoa_wd(p, l, c, 0);
break;
default:
*p++ = c;
break;
}
i = (int)(p - s);
if ((width -= i) < 0)
width = 0;
if (left_align == FALSE)
width = -width;
if (width < 0) {
if (*s == '-' && filler == '0') {
gfileWrite(f, s++, 1);
ret++; if (!--maxlen) return ret;
i--;
}
do {
gfileWrite(f, &filler, 1);
ret++; if (!--maxlen) return ret;
} while (++width != 0);
}
while (--i >= 0) {
gfileWrite(f, s++, 1);
ret++; if (!--maxlen) return ret;
}
while (width) {
gfileWrite(f, &filler, 1);
ret++; if (!--maxlen) return ret;
width--;
}
}
return ret;
}
#if GFILE_NEED_STRINGS
int snprintg(char *buf, int maxlen, const char *fmt, ...) {
int res;
GFILE f;
va_list ap;
if (maxlen <= 1) {
if (maxlen == 1) {
*buf = 0;
return 0;
}
maxlen += 1;
}
f.flags = GFILEFLG_WRITE|GFILEFLG_TRUNC;
gfileOpenStringFromStaticGFILE(&f, buf);
va_start(ap, fmt);
res = vfnprintg(&f, maxlen-1, fmt, ap);
va_end(ap);
return res;
}
int vsnprintg(char *buf, int maxlen, const char *fmt, va_list arg) {
GFILE f;
if (maxlen <= 1) {
if (maxlen == 1) {
*buf = 0;
return 0;
}
maxlen += 1;
}
f.flags = GFILEFLG_WRITE|GFILEFLG_TRUNC;
gfileOpenStringFromStaticGFILE(&f, buf);
return vfnprintg(&f, maxlen-1, fmt, arg);
}
#endif

61
src/gfile/inc_romfs.c
View File

@ -31,11 +31,15 @@ typedef struct ROMFS_DIRENTRY {
} ROMFS_DIRENTRY;
#define ROMFS_DIRENTRY_HEAD 0
#include "romfs_files.h"
static const ROMFS_DIRENTRY const *FsROMHead = ROMFS_DIRENTRY_HEAD;
typedef struct ROMFileList {
gfileList fl;
const ROMFS_DIRENTRY *pdir;
} ROMFileList;
static bool_t ROMExists(const char *fname);
static long int ROMFilesize(const char *fname);
static bool_t ROMOpen(GFILE *f, const char *fname);
@ -44,6 +48,11 @@ static int ROMRead(GFILE *f, void *buf, int size);
static bool_t ROMSetpos(GFILE *f, long int pos);
static long int ROMGetsize(GFILE *f);
static bool_t ROMEof(GFILE *f);
#if GFILE_NEED_FILELISTS
static gfileList *ROMFlOpen(const char *path, bool_t dirs);
static const char *ROMFlRead(gfileList *pfl);
static void ROMFlClose(gfileList *pfl);
#endif
static const GFILEVMT FsROMVMT = {
GFILE_CHAINHEAD, // next
@ -52,8 +61,10 @@ static const GFILEVMT FsROMVMT = {
0, ROMExists, ROMFilesize, 0,
ROMOpen, ROMClose, ROMRead, 0,
ROMSetpos, ROMGetsize, ROMEof,
0, 0,
0
0, 0, 0,
#if GFILE_NEED_FILELISTS
ROMFlOpen, ROMFlRead, ROMFlClose
#endif
};
#undef GFILE_CHAINHEAD
#define GFILE_CHAINHEAD &FsROMVMT
@ -122,3 +133,45 @@ static bool_t ROMEof(GFILE *f)
{
return f->pos >= ((const ROMFS_DIRENTRY *)f->obj)->size;
}
#if GFILE_NEED_FILELISTS
static gfileList *ROMFlOpen(const char *path, bool_t dirs) {
ROMFileList * p;
(void) path;
// We don't support directories or path searching
if (dirs)
return 0;
// Allocate the list buffer
if (!(p = gfxAlloc(sizeof(ROMFileList))))
return 0;
// Initialize it and return it.
p->pdir = 0;
return &p->fl;
}
static const char *ROMFlRead(gfileList *pfl) {
#define rfl ((ROMFileList *)pfl)
// Is it the first entry
if (!rfl->pdir) {
rfl->pdir = FsROMHead;
return FsROMHead->name;
}
// Is it not the last entry
if (rfl->pdir->next) {
rfl->pdir = rfl->pdir->next;
return rfl->pdir->name;
}
return 0;
#undef rfl
}
static void ROMFlClose(gfileList *pfl) {
gfxFree(pfl);
}
#endif

257
src/gfile/inc_scang.c Normal file
View File

@ -0,0 +1,257 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* This file is included by src/gfile/gfile.c
*/
/********************************************************
* Scang Routines
********************************************************/
int fscang(GFILE *f, const char *fmt, ...) {
int res;
va_list ap;
va_start(ap, fmt);
res = vfscang(f, fmt, ap);
va_end(ap);
return res;
}
int vfscang(GFILE *f, const char *fmt, va_list arg) {
int res, width, size, base;
unsigned long num;
char c;
bool_t assign, negate;
char *p;
for(res = 0; *fmt; fmt++) {
switch(*fmt) {
case ' ': case '\t': case '\r': case '\n': case '\v': case '\f':
break;
case '%':
fmt++;
assign = TRUE;
negate = FALSE;
width = 0;
size = 1;
num = 0;
if (*fmt == '*') {
fmt++;
assign = FALSE;
}
while(*fmt >= '0' && *fmt <= '9')
width = width * 10 + (*fmt++ - '0');
if (*fmt == 'h') {
fmt++;
size = 0;
} else if (*fmt == 'l') {
fmt++;
size = 2;
} else if (*fmt == 'L') {
fmt++;
size = 3;
}
switch(*fmt) {
case 0:
return res;
case '%':
goto matchchar;
case 'c':
if (!width) {
while(1) {
if (!gfileRead(f, &c, 1)) return res;
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': continue;
}
break;
}
width = 1;
} else {
if (!gfileRead(f, &c, 1)) return res;
}
if (assign) {
p = va_arg(arg, char *);
res++;
*p++ = c;
}
while(--width) {
if (!gfileRead(f, &c, 1)) return res;
if (assign) *p++ = c;
}
break;
case 's':
while(1) {
if (!gfileRead(f, &c, 1)) return res;
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': continue;
}
break;
}
if (assign) {
p = va_arg(arg, char *);
res++;
*p++ = c;
}
if (width) {
while(--width) {
if (!gfileRead(f, &c, 1)) {
if (assign) *((char *)p) = 0;
return res;
}
if (assign) *p++ = c;
}
} else {
while(1) {
if (!gfileRead(f, &c, 1)) {
if (assign) *((char *)p) = 0;
return res;
}
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': break;
default:
if (assign) *p++ = c;
continue;
}
break;
}
//ungetch(c);
}
if (assign) *p = 0;
break;
case 'd': base = 10; goto getnum;
case 'i': base = -1; goto getnum;
case 'o': base = 8; goto getnum;
case 'u': base = 10; goto getnum;
case 'x': base = 16; goto getnum;
case 'b': base = 2;
getnum:
while(1) {
if (!gfileRead(f, &c, 1)) return res;
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': continue;
}
break;
}
if (c == '-' && *fmt != 'u') {
negate = TRUE;
if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
}
if (base == -1) {
if (c == '0') {
if ((width && !--width) || !gfileRead(f, &c, 1)) goto assignnum;
switch(c) {
case 'x': case 'X':
base = 16;
if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
break;
case 'b': case 'B':
base = 2;
if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
break;
default:
base = 8;
break;
}
} else
base = 10;
}
while(1) {
if (c >= '0' && c <= '9' && c - '0' < base)
num = num * base + (c - '0');
else if (c >= 'A' && c <= 'F' && base == 16)
num = num * base + (c - ('A'-10));
else if (c >= 'a' && c <= 'f' && base == 16)
num = num * base + (c - ('a'-10));
else {
// ungetch(c)
break;
}
if ((width && !--width) || !gfileRead(f, &c, 1))
break;
}
assignnum:
if (negate)
num = -num;
if (assign) {
switch(size) {
case 0: // short
p = (char *)va_arg(arg, short *);
res++;
*((short *)p) = (short)num;
case 1: // int
p = (char *)va_arg(arg, int *);
res++;
*((int *)p) = (int)num;
case 2: case 3: // long
p = (char *)va_arg(arg, long *);
res++;
*((long *)p) = (long)num;
}
}
break;
#if GFILE_ALLOW_FLOATS
case 'e': case 'f': case 'g':
// TODO
#endif
default:
return res;
}
break;
default:
matchchar:
while(1) {
if (!gfileRead(f, &c, 1)) return res;
switch(c) {
case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': continue;
}
break;
}
if (c != *fmt) return res;
break;
}
}
return res;
}
#if GFILE_NEED_STRINGS
int sscang(const char *buf, const char *fmt, ...) {
int res;
GFILE f;
va_list ap;
f.flags = GFILEFLG_READ;
gfileOpenStringFromStaticGFILE(&f, (char *)buf);
va_start(ap, fmt);
res = vfscang(&f, fmt, ap);
va_end(ap);
return res;
}
int vsscang(const char *buf, const char *fmt, va_list arg) {
GFILE f;
f.flags = GFILEFLG_READ;
gfileOpenStringFromStaticGFILE(&f, (char *)buf);
return vfscang(&f, fmt, arg);
}
#endif

45
src/gfile/inc_stdio.c Normal file
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@ -0,0 +1,45 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* This file is included by src/gfile/gfile.c
*/
/********************************************************
* Stdio Emulation Routines
********************************************************/
size_t gstdioRead(void * ptr, size_t size, size_t count, FILE *f) {
return gfileRead(f, ptr, size*count)/size;
}
size_t gstdioWrite(const void * ptr, size_t size, size_t count, FILE *f) {
return gfileWrite(f, ptr, size*count)/size;
}
int gstdioSeek(FILE *f, size_t offset, int origin) {
switch(origin) {
case SEEK_SET:
break;
case SEEK_CUR:
offset += f->pos;
break;
case SEEK_END:
offset += gfileGetSize(f);
break;
default:
return -1;
}
return gfileSetPos(f, offset) ? 0 : -1;
}
int gstdioGetpos(FILE *f, long int *pos) {
if (!(f->flags & GFILEFLG_OPEN))
return -1;
*pos = f->pos;
return 0;
}

69
src/gfile/inc_strings.c Normal file
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@ -0,0 +1,69 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* This file is included by src/gfile/gfile.c
*/
/********************************************************
* The virtual string file VMT
********************************************************/
#include <string.h>
// Special String VMT
static int StringRead(GFILE *f, void *buf, int size) {
int res;
char *p;
p = ((char *)f->obj) + f->pos;
for(res = 0; res < size && *p; res++, p++, buf = ((char *)buf)+1)
((char *)buf)[0] = *p;
return res;
}
static int StringWrite(GFILE *f, const void *buf, int size) {
if ((f->flags & GFILEFLG_APPEND)) {
while(((char *)f->obj)[f->pos])
f->pos++;
}
memcpy(((char *)f->obj)+f->pos, buf, size);
((char *)f->obj)[f->pos+size] = 0;
return size;
}
static const GFILEVMT StringVMT = {
0, // next
0, // flags
'_', // prefix
0, 0, 0, 0,
0, 0, StringRead, StringWrite,
0, 0, 0,
0, 0, 0,
#if GFILE_NEED_FILELISTS
0, 0, 0,
#endif
};
static void gfileOpenStringFromStaticGFILE(GFILE *f, char *str) {
if ((f->flags & GFILEFLG_TRUNC))
str[0] = 0;
f->vmt = &StringVMT;
f->obj = str;
f->pos = 0;
f->flags |= GFILEFLG_OPEN|GFILEFLG_CANSEEK;
}
GFILE *gfileOpenString(char *str, const char *mode) {
GFILE *f;
// Get an empty file and set the flags
if (!(f = findemptyfile(mode)))
return 0;
// File is open - fill in all the details
gfileOpenStringFromStaticGFILE(f, str);
return f;
}

136
src/gfile/sys_defs.h
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@ -33,8 +33,10 @@
#ifndef GFILE_IMPLEMENTATION
typedef void GFILE;
typedef void gfileList;
#else
typedef struct GFILE GFILE;
typedef struct gfileList gfileList;
#endif
extern GFILE *gfileStdIn;
@ -98,14 +100,33 @@ extern "C" {
/**
* @brief Open file
* @details A file must be opened before it can be accessed
* @details ToDo (document possible modes)
* @details The resulting GFILE will be used for all functions that access the file.
*
* @param[in] fname The file name
* @param[in] mode The mode
* @param[in] mode The mode.
*
* @return Valid GFILE on success, 0 otherwise
*
* @note The modes follow the c library fopen() standard.
* The valid modes are:<br/>
* <ul><li>r - Open for read, the file must exist</li>
* <li>w - Open for write, the file is truncated if it exists</li>
* <li>wx - Open for write, the file must not exist</li>
* <li>a - Open for append, the file is truncated if it exists</li>
* <li>ax - Open for append, the file must not exists</li>
* </ul><br/>
* THe following flags can also be added to the above modes:<br/>
* <ul><li>+ - Open for both read and write</li>
* <li>b - Open as a binary file rather than a text file</li>
* <ul>
* @note Not all file-systems support all modes. For example, write
* is not available with the ROM file-system. Similarly few platforms
* distinguish between binary and text files.
* @note Even though binary vs text is relevant only for a small number of platforms
* the "b" flag should always be specified for binary files such as images.
* This ensures portability to other platforms. The extra flag will be ignored
* on platforms where it is not relevant.
*
* @api
*/
GFILE * gfileOpen(const char *fname, const char *mode);
@ -239,15 +260,118 @@ extern "C" {
*/
bool_t gfileSync(GFILE *f);
#if GFILE_NEED_CHIBIOSFS && GFX_USE_OS_CHIBIOS
#if GFILE_NEED_FILELISTS || defined(__DOXYGEN__)
/**
* @brief Open a file list
*
* @param[in] fs The file system (F for FatFS)
* @param[in] path Path information to pass to the file system
* @param[in] dirs Pass TRUE to get directories only, FALSE to get files only
*
* @return A pointer to a file list on success, NULL otherwise
*
* @note The path parameter is handled in a file-system specific way. It could be
* treated as a directory name, it may be treated as a file pattern, or it
* may be ignored. Passing NULL will always return the full list of files
* in at least the top level directory.
* @note For file systems that do not support directories, passing TRUE for dirs
* will return an error.
* @note You must call @p gfileCloseFileList() when you have finished with the
* file list in order to free resources.
*
* @api
*/
gfileList *gfileOpenFileList(char fs, const char *path, bool_t dirs);
/**
* @brief Get the next file in a file list.
*
* @param[in] pfl Pointer to a file list returned by @p gfileOpenFileList()
*
* @return A pointer to a file (or directory) name. Returns NULL if there are no more.
*
* @note The file name may contain the full directory path or may not depending
* on how the file system treats directories.
* @note The returned buffer may be destroyed by the next call to any of
* @p gfileOpenFileList(), @p gfileReadFileList() or @p gfileCloseFileList().
* Do not use this pointer after one of those calls.
*
* @api
*/
const char *gfileReadFileList(gfileList *pfl);
/**
* @brief Close a file list.
*
* @param[in] pfl Pointer to a file list returned by @p gfileOpenFileList()
*
* @api
*/
void gfileCloseFileList(gfileList *pfl);
#endif
#if (GFILE_NEED_CHIBIOSFS && GFX_USE_OS_CHIBIOS) || defined(__DOXYGEN__)
/**
* @brief Open file from a ChibiOS BaseFileStream
*
* @param[in] BaseFileStreamPtr The BaseFileStream to open as a GFILE
* @param[in] mode The mode.
*
* @return Valid GFILE on success, 0 otherwise
*
* @note The modes are the same modes as in @p gfileOpen(). The
* open mode is NOT compared against the BaseFileStream capabilities.
* @note Supported operations are: read, write, getpos, setpos, eof and getsize
*
* @api
*/
GFILE * gfileOpenBaseFileStream(void *BaseFileStreamPtr, const char *mode);
#endif
#if GFILE_NEED_MEMFS
#if GFILE_NEED_MEMFS || defined(__DOXYGEN__)
/**
* @brief Open file from a memory pointer
*
* @param[in] memptr The pointer to the memory
* @param[in] mode The mode.
*
* @return Valid GFILE on success, 0 otherwise
*
* @note The modes are the same modes as in @p gfileOpen(). Note there is
* no concept of file-size. Be careful not to overwrite other memory or
* to read from inaccessible sections of memory.
* @note Supported operations are: read, write, getpos, setpos
*
* @api
*/
GFILE * gfileOpenMemory(void *memptr, const char *mode);
#endif
#if GFILE_NEED_PRINTG
#if GFILE_NEED_STRINGS || defined(__DOXYGEN__)
/**
* @brief Open file from a null terminated C string
*
* @param[in] memptr The pointer to the string or string buffer
* @param[in] mode The mode.
*
* @return Valid GFILE on success, 0 otherwise
*
* @note The modes are the same modes as in @p gfileOpen(). Note there is
* no concept of file-size. Be careful not to overwrite other memory or
* to read from inaccessible sections of memory.
* @note Reading will return EOF when the NULL character is reached.
* @note Writing will always place a NULL in the next character effectively terminating the
* string at the character just written.
* @note Supported operations are: read, write, append, getpos, setpos
* @note Be careful with setpos and getpos. They do not check for the end of the string.
* @note Reading and Writing will read/write a maximum of one character at a time.
*
* @api
*/
GFILE * gfileOpenString(char *str, const char *mode);
#endif
#if GFILE_NEED_PRINTG || defined(__DOXYGEN__)
#include <stdarg.h>
int vfnprintg(GFILE *f, int maxlen, const char *fmt, va_list arg);
@ -265,7 +389,7 @@ extern "C" {
#endif
#endif
#if GFILE_NEED_SCANG
#if GFILE_NEED_SCANG || defined(__DOXYGEN__)
#include <stdarg.h>
int vfscang(GFILE *f, const char *fmt, va_list arg);

14
src/gfile/sys_options.h
View File

@ -46,6 +46,7 @@
/**
* @brief Include printg, fprintg etc functions
* @details Defaults to FALSE
* @pre To get the string sprintg functions you also need to define @p GFILE_NEED_STRINGS
*/
#ifndef GFILE_NEED_PRINTG
#define GFILE_NEED_PRINTG FALSE
@ -53,15 +54,14 @@
/**
* @brief Include scang, fscang etc functions
* @details Defaults to FALSE
* @pre To get the string sscang functions you also need to define @p GFILE_NEED_STRINGS
*/
#ifndef GFILE_NEED_SCANG
#define GFILE_NEED_SCANG FALSE
#endif
/**
* @brief Include the string sprintg/sscang functions
* @brief Include the string based file functions
* @details Defaults to FALSE
* @pre To get sprintg functions you also need to define @p GFILE_NEED_PRINTG
* @pre To get sscang functions you also need to define @p GFILE_NEED_SCANG
*/
#ifndef GFILE_NEED_STRINGS
#define GFILE_NEED_STRINGS FALSE
@ -146,6 +146,14 @@
#ifndef GFILE_NEED_MEMFS
#define GFILE_NEED_MEMFS FALSE
#endif
/**
* @brief Include support for file list functions
* @details Defaults to FALSE
* @note Adds support for @p gfileOpenFileList(), @p gfileReadFileList() and @p gfileCloseFileList().
*/
#ifndef GFILE_NEED_FILELISTS
#define GFILE_NEED_FILELISTS FALSE
#endif
/**
* @}
*