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-rw-r--r--src/gfile/gfile.c676
-rw-r--r--src/gfile/gfile.mk1
-rw-r--r--src/gfile/inc_fatfs.c15
-rw-r--r--src/gfile/inc_nativefs.c98
-rw-r--r--src/gfile/inc_ramfs.c15
-rw-r--r--src/gfile/inc_romfs.c87
6 files changed, 892 insertions, 0 deletions
diff --git a/src/gfile/gfile.c b/src/gfile/gfile.c
new file mode 100644
index 00000000..e42dc2af
--- /dev/null
+++ b/src/gfile/gfile.c
@@ -0,0 +1,676 @@
+/*
+ * 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
+ */
+
+/**
+ * @file src/gfile/gfile.c
+ * @brief GFILE code.
+ *
+ */
+
+#define GFILE_IMPLEMENTATION
+#include "gfx.h"
+
+#if GFX_USE_GFILE
+
+// The chain of FileSystems
+#define GFILE_CHAINHEAD 0
+
+// The table of GFILE's
+static GFILE gfileArr[GFILE_MAX_GFILES];
+GFILE *gfileStdIn;
+GFILE *gfileStdOut;
+GFILE *gfileStdErr;
+
+/**
+ * The order of the file-systems below determines the order
+ * that they are searched to find a file.
+ * The last defined is the first searched.
+ */
+
+/********************************************************
+ * The RAM file-system VMT
+ ********************************************************/
+#if GFILE_NEED_RAMFS
+ #include "../src/gfile/inc_ramfs.c"
+#endif
+
+/********************************************************
+ * The FAT file-system VMT
+ ********************************************************/
+#ifndef GFILE_NEED_FATFS
+ #include "../src/gfile/inc_fatfs.c"
+#endif
+
+/********************************************************
+ * The native file-system
+ ********************************************************/
+#if GFILE_NEED_NATIVEFS
+ #include "../src/gfile/inc_nativefs.c"
+#endif
+
+/********************************************************
+ * The ROM file-system VMT
+ ********************************************************/
+#if GFILE_NEED_ROMFS
+ #include "../src/gfile/inc_romfs.c"
+#endif
+
+/********************************************************
+ * IO routines
+ ********************************************************/
+
+/**
+ * The chain of file systems.
+ */
+static const GFILEVMT const * FsChain = GFILE_CHAINHEAD;
+
+/**
+ * The init routine
+ */
+void _gfileInit(void) {
+ #if GFILE_NEED_NATIVEFS
+ NativeStdIn.flags = GFILEFLG_OPEN|GFILEFLG_READ;
+ NativeStdIn.vmt = &FsNativeVMT;
+ NativeStdIn.obj = (void *)stdin;
+ NativeStdIn.pos = 0;
+ gfileStdIn = &NativeStdIn;
+ NativeStdOut.flags = GFILEFLG_OPEN|GFILEFLG_WRITE|GFILEFLG_APPEND;
+ NativeStdOut.vmt = &FsNativeVMT;
+ NativeStdOut.obj = (void *)stdout;
+ NativeStdOut.pos = 0;
+ gfileStdOut = &NativeStdOut;
+ NativeStdErr.flags = GFILEFLG_OPEN|GFILEFLG_WRITE|GFILEFLG_APPEND;
+ NativeStdErr.vmt = &FsNativeVMT;
+ NativeStdErr.obj = (void *)stderr;
+ NativeStdErr.pos = 0;
+ gfileStdErr = &NativeStdErr;
+ #endif
+}
+
+bool_t gfileExists(const char *fname) {
+ const GFILEVMT *p;
+
+ #if GFILE_ALLOW_DEVICESPECIFIC
+ if (fname[0] && fname[1] == '|') {
+ for(p = FsChain; p; p = p->next) {
+ if (p->prefix == fname[0])
+ return p->exists && p->exists(fname+2);
+ }
+ return FALSE;
+ }
+ #endif
+
+ for(p = FsChain; p; p = p->next) {
+ if (p->exists && p->exists(fname))
+ return TRUE;
+ }
+ return FALSE;
+}
+
+bool_t gfileDelete(const char *fname) {
+ const GFILEVMT *p;
+
+ #if GFILE_ALLOW_DEVICESPECIFIC
+ if (fname[0] && fname[1] == '|') {
+ for(p = FsChain; p; p = p->next) {
+ if (p->prefix == fname[0])
+ return p->del && p->del(fname+2);
+ }
+ return FALSE;
+ }
+ #endif
+
+ for(p = FsChain; p; p = p->next) {
+ if (p->del && p->del(fname))
+ return TRUE;
+ }
+ return FALSE;
+}
+
+long int gfileGetFilesize(const char *fname) {
+ const GFILEVMT *p;
+ long int res;
+
+ #if GFILE_ALLOW_DEVICESPECIFIC
+ if (fname[0] && fname[1] == '|') {
+ for(p = FsChain; p; p = p->next) {
+ if (p->prefix == fname[0])
+ return p->filesize ? p->filesize(fname+2) : -1;
+ }
+ return -1;
+ }
+ #endif
+
+ for(p = FsChain; p; p = p->next) {
+ if (p->filesize && (res = p->filesize(fname)) != -1)
+ return res;
+ }
+ return -1;
+}
+
+bool_t gfileRename(const char *oldname, const char *newname) {
+ const GFILEVMT *p;
+
+ #if GFILE_ALLOW_DEVICESPECIFIC
+ if ((oldname[0] && oldname[1] == '|') || (newname[0] && newname[1] == '|')) {
+ char ch;
+
+ if (oldname[0] && oldname[1] == '|') {
+ ch = oldname[0];
+ oldname += 2;
+ if (newname[0] && newname[1] == '|') {
+ if (newname[0] != ch)
+ // Both oldname and newname are fs specific but different ones.
+ return FALSE;
+ newname += 2;
+ }
+ } else {
+ ch = newname[0];
+ newname += 2;
+ }
+ for(p = FsChain; p; p = p->next) {
+ if (p->prefix == ch)
+ return p->ren && p->ren(oldname, newname);
+ }
+ return FALSE;
+ }
+ #endif
+
+ for(p = FsChain; p; p = p->next) {
+ if (p->ren && p->ren(oldname,newname))
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static uint16_t mode2flags(const char *mode) {
+ uint16_t flags;
+
+ switch(mode[0]) {
+ case 'r':
+ flags = GFILEFLG_READ|GFILEFLG_MUSTEXIST;
+ while (*++mode) {
+ switch(mode[0]) {
+ case '+': flags |= GFILEFLG_WRITE; break;
+ case 'b': flags |= GFILEFLG_BINARY; break;
+ }
+ }
+ 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;
+}
+
+static bool_t testopen(const GFILEVMT *p, GFILE *f, const char *fname) {
+ // If we want write but the fs doesn't allow it then return
+ if ((f->flags & GFILEFLG_WRITE) && !(p->flags & GFSFLG_WRITEABLE))
+ return FALSE;
+
+ // Try to open
+ if (!p->open || !p->open(f, fname))
+ return FALSE;
+
+ // File is open - fill in all the details
+ f->vmt = p;
+ f->err = 0;
+ f->pos = 0;
+ f->flags |= GFILEFLG_OPEN;
+ if (p->flags & GFSFLG_SEEKABLE)
+ f->flags |= GFILEFLG_CANSEEK;
+ return TRUE;
+}
+
+GFILE *gfileOpen(const char *fname, const char *mode) {
+ uint16_t flags;
+ GFILE * f;
+ const GFILEVMT *p;
+
+ // Get the requested mode
+ if (!(flags = mode2flags(mode)))
+ return FALSE;
+
+ #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);
+ }
+ // File not found
+ break;
+ }
+ }
+
+ // No available slot
+ return FALSE;
+ }
+ #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 TRUE;
+ }
+ // File not found
+ break;
+ }
+ }
+
+ // No available slot
+ return FALSE;
+}
+
+void gfileClose(GFILE *f) {
+ if (!(f->flags & GFILEFLG_OPEN))
+ return;
+ if (f->vmt->close)
+ f->vmt->close(f);
+ f->flags = 0;
+}
+
+size_t gfileRead(GFILE *f, char *buf, size_t len) {
+ size_t res;
+
+ if ((f->flags & (GFILEFLG_OPEN|GFILEFLG_READ)) != (GFILEFLG_OPEN|GFILEFLG_READ))
+ return 0;
+ if (!f->vmt->read)
+ return 0;
+ if ((res = f->vmt->read(f, buf, len)) <= 0)
+ return 0;
+ f->pos += res;
+ return res;
+}
+
+size_t gfileWrite(GFILE *f, const char *buf, size_t len) {
+ size_t res;
+
+ if ((f->flags & (GFILEFLG_OPEN|GFILEFLG_WRITE)) != (GFILEFLG_OPEN|GFILEFLG_WRITE))
+ return 0;
+ if (!f->vmt->write)
+ return 0;
+ if ((res = f->vmt->write(f, buf, len)) <= 0)
+ return 0;
+ f->pos += res;
+ return res;
+}
+
+long int gfileGetPos(GFILE *f) {
+ if (!(f->flags & GFILEFLG_OPEN))
+ return 0;
+ return f->pos;
+}
+
+bool_t gfileSetPos(GFILE *f, long int pos) {
+ if (!(f->flags & GFILEFLG_OPEN))
+ return FALSE;
+ if (!f->vmt->setpos || !f->vmt->setpos(f, pos))
+ return FALSE;
+ f->pos = pos;
+}
+
+long int gfileGetSize(GFILE *f) {
+ if (!(f->flags & GFILEFLG_OPEN))
+ return 0;
+ if (!f->vmt->getsize)
+ return 0;
+ return f->vmt->getsize(f);
+}
+
+bool_t gfileEOF(GFILE *f) {
+ if (!(f->flags & GFILEFLG_OPEN))
+ return TRUE;
+ if (!f->vmt->eof)
+ return TRUE;
+ return f->vmt->eof(f);
+}
+
+/********************************************************
+ * String VMT routines
+ ********************************************************/
+#if GFILE_NEED_STRINGS && (GFILE_NEED_PRINTG || GFILE_NEED_SCANG)
+ #include <string.h>
+
+ // Special String VMT
+ static int StringRead(GFILE *f, char *buf, int size) {
+ memcpy(buf, (char *)f->obj+f->pos, size);
+ return size;
+ }
+ static int StringWrite(GFILE *f, const char *buf, int size) {
+ memcpy((char *)f->obj+f->pos, buf, size);
+ return size;
+ }
+ static const GFILEVMT StringVMT = {
+ 0, // next
+ 0, // flags
+ '_', // prefix
+ 0, 0, 0, 0,
+ 0, 0, StringRead, StringWrite,
+ 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';
+ else if (c == '*')
+ c = va_arg(ap, int);
+ else
+ break;
+ width = width * 10 + c;
+ }
+ if (c == '.') {
+ while (1) {
+ c = *fmt++;
+ if (c >= '0' && c <= '9')
+ c -= '0';
+ else if (c == '*')
+ c = va_arg(ap, int);
+ else
+ break;
+ precision = precision * 10 + c;
+ }
+ }
+ /* 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(ap, int);
+ break;
+ case 's':
+ filler = ' ';
+ if ((s = va_arg(ap, 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(ap, long);
+ else
+ l = va_arg(ap, 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(ap, 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(ap, long);
+ else
+ l = va_arg(ap, 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;
+ }
+ 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;
+ }
+ 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
+ #error "GFILE-SCANG: Not implemented yet"
+#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;
+ }
+#endif
+
+#endif /* GFX_USE_GFILE */
diff --git a/src/gfile/gfile.mk b/src/gfile/gfile.mk
new file mode 100644
index 00000000..381bd6f6
--- /dev/null
+++ b/src/gfile/gfile.mk
@@ -0,0 +1 @@
+GFXSRC += $(GFXLIB)/src/gfile/gfile.c
diff --git a/src/gfile/inc_fatfs.c b/src/gfile/inc_fatfs.c
new file mode 100644
index 00000000..d49cfe7a
--- /dev/null
+++ b/src/gfile/inc_fatfs.c
@@ -0,0 +1,15 @@
+/*
+ * 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 FAT file-system VMT
+ ********************************************************/
+#error "GFILE: FATFS Not implemented yet"
diff --git a/src/gfile/inc_nativefs.c b/src/gfile/inc_nativefs.c
new file mode 100644
index 00000000..df5e7861
--- /dev/null
+++ b/src/gfile/inc_nativefs.c
@@ -0,0 +1,98 @@
+/*
+ * 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 native file-system
+ ********************************************************/
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+static GFILE NativeStdIn;
+static GFILE NativeStdOut;
+static GFILE NativeStdErr;
+
+static bool_t NativeDel(const char *fname);
+static bool_t NativeExists(const char *fname);
+static long int NativeFilesize(const char *fname);
+static bool_t NativeRen(const char *oldname, const char *newname);
+static bool_t NativeOpen(GFILE *f, const char *fname);
+static void NativeClose(GFILE *f);
+static int NativeRead(GFILE *f, char *buf, int size);
+static int NativeWrite(GFILE *f, const char *buf, int size);
+static bool_t NativeSetpos(GFILE *f, long int pos);
+static long int NativeGetsize(GFILE *f);
+static bool_t NativeEof(GFILE *f);
+
+static const GFILEVMT FsNativeVMT = {
+ GFILE_CHAINHEAD, // next
+ #if defined(WIN32) || GFX_USE_OS_WIN32
+ GFSFLG_TEXTMODES|
+ #else
+ GFSFLG_CASESENSITIVE|
+ #endif
+ GFSFLG_WRITEABLE|GFSFLG_SEEKABLE|GFSFLG_FAST, // flags
+ 'N', // prefix
+ NativeDel, NativeExists, NativeFilesize, NativeRen,
+ NativeOpen, NativeClose, NativeRead, NativeWrite,
+ NativeSetpos, NativeGetsize, NativeEof,
+};
+#undef GFILE_CHAINHEAD
+#define GFILE_CHAINHEAD &FsNativeVMT
+
+static char *flags2mode(char *buf, uint16_t flags) {
+ if (flags & GFILEFLG_MUSTEXIST)
+ *buf = 'r';
+ else if (flags & GFILEFLG_APPEND)
+ *buf = 'a';
+ else
+ *buf = 'w';
+ buf++;
+ if ((flags & (GFILEFLG_READ|GFILEFLG_WRITE)) == (GFILEFLG_READ|GFILEFLG_WRITE))
+ *buf++ = '+';
+ if (flags & GFILEFLG_BINARY)
+ *buf++ = 'b';
+ if (flags & GFILEFLG_MUSTNOTEXIST)
+ *buf++ = 'x';
+ *buf++ = 0;
+}
+
+static bool_t NativeDel(const char *fname) { return remove(fname) ? FALSE : TRUE; }
+static bool_t NativeExists(const char *fname) { return access(fname, 0) ? FALSE : TRUE; }
+static long int NativeFilesize(const char *fname) {
+ struct stat st;
+ if (stat(fname, &st)) return -1;
+ return st.st_size;
+}
+static bool_t NativeRen(const char *oldname, const char *newname) { return rename(oldname, newname) ? FALSE : TRUE };
+static bool_t NativeOpen(GFILE *f, const char *fname) {
+ FILE *fd;
+ char mode[5];
+
+ if (!(fd = fopen(fname, mode)))
+ return FALSE;
+ f->obj = (void *)fd;
+ return TRUE;
+}
+static void NativeClose(GFILE *f) { fclose((FILE *)f->obj); }
+static int NativeRead(GFILE *f, char *buf, int size) { return fread(buf, 1, size, (FILE *)f->obj); }
+static int NativeWrite(GFILE *f, const char *buf, int size) { return fwrite(buf, 1, size, (FILE *)f->obj); }
+static bool_t NativeSetpos(GFILE *f, long int pos) {
+ return fseek((FILE *)f->obj, pos, SEEK_SET) ? FALSE : TRUE;
+}
+static long int NativeGetsize(GFILE *f) {
+ struct stat st;
+ if (fstat(fileno((FILE *)f->obj), &st)) return -1;
+ return st.st_size;
+}
+static bool_t NativeEof(GFILE *f) { return feof((FILE *)f->obj) ? TRUE : FALSE; }
diff --git a/src/gfile/inc_ramfs.c b/src/gfile/inc_ramfs.c
new file mode 100644
index 00000000..b0f0d052
--- /dev/null
+++ b/src/gfile/inc_ramfs.c
@@ -0,0 +1,15 @@
+/*
+ * 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 RAM file-system VMT
+ ********************************************************/
+#error "GFILE: RAMFS Not implemented yet"
diff --git a/src/gfile/inc_romfs.c b/src/gfile/inc_romfs.c
new file mode 100644
index 00000000..5a780554
--- /dev/null
+++ b/src/gfile/inc_romfs.c
@@ -0,0 +1,87 @@
+/*
+ * 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 ROM file-system VMT
+ ********************************************************/
+
+#include <string.h>
+
+typedef struct ROMFS_DIRENTRY {
+ const struct ROMFS_DIRENTRY * next;
+ const char * name;
+ long int size;
+ const char * file;
+} ROMFS_DIRENTRY;
+
+#define ROMFS_DIRENTRY_HEAD 0
+
+#include "romfs_files.h"
+
+static const ROMFS_DIRENTRY const *FsROMHead = ROMFS_DIRENTRY_HEAD;
+
+static bool_t ROMExists(const char *fname);
+static long int ROMFilesize(const char *fname);
+static bool_t ROMOpen(GFILE *f, const char *fname);
+static void ROMClose(GFILE *f);
+static int ROMRead(GFILE *f, char *buf, int size);
+static bool_t ROMSetpos(GFILE *f, long int pos);
+static long int ROMGetsize(GFILE *f);
+static bool_t ROMEof(GFILE *f);
+
+static const GFILEVMT FsROMVMT = {
+ GFILE_CHAINHEAD, // next
+ GFSFLG_CASESENSITIVE|GFSFLG_SEEKABLE|GFSFLG_FAST, // flags
+ 'S', // prefix
+ 0, ROMExists, ROMFilesize, 0,
+ ROMOpen, ROMClose, ROMRead, 0,
+ ROMSetpos, ROMGetsize, ROMEof,
+};
+#undef GFILE_CHAINHEAD
+#define GFILE_CHAINHEAD &FsROMVMT
+
+static ROMFS_DIRENTRY *ROMFindFile(const char *fname) {
+ const ROMFS_DIRENTRY *p;
+
+ for(p = FsROMHead; p; p = p->next) {
+ if (!strcmp(p->name, fname))
+ break;
+ }
+ return p;
+}
+static bool_t ROMExists(const char *fname) { return ROMFindFile(fname) != 0; }
+static long int ROMFilesize(const char *fname) {
+ const ROMFS_DIRENTRY *p;
+
+ if (!(p = ROMFindFile(fname))) return -1;
+ return p->size;
+}
+static bool_t ROMOpen(GFILE *f, const char *fname) {
+ const ROMFS_DIRENTRY *p;
+
+ if (!(p = ROMFindFile(fname))) return FALSE;
+ f->obj = (void *)p;
+ return TRUE;
+}
+static void ROMClose(GFILE *f) { (void)f; }
+static int ROMRead(GFILE *f, char *buf, int size) {
+ const ROMFS_DIRENTRY *p;
+
+ p = (const ROMFS_DIRENTRY *)f->obj;
+ if (p->size - f->pos < size)
+ size = p->size - f->pos;
+ if (size <= 0) return 0;
+ memcpy(buf, p->file+f->pos, size);
+ return size;
+}
+static bool_t ROMSetpos(GFILE *f, long int pos) { return pos <= ((const ROMFS_DIRENTRY *)f->obj)->size; }
+static long int ROMGetsize(GFILE *f) { return ((const ROMFS_DIRENTRY *)f->obj)->size; }
+static bool_t ROMEof(GFILE *f) { return f->pos >= ((const ROMFS_DIRENTRY *)f->obj)->size; }
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-24 10:02:31 +0000