diff options
| -rw-r--r-- | include/gfile/gfile.h | 189 | ||||
| -rw-r--r-- | include/gfile/options.h | 149 | ||||
| -rw-r--r-- | src/gfile/gfile.c | 679 | ||||
| -rw-r--r-- | src/gfile/gfile.mk | 1 | ||||
| -rw-r--r-- | src/gfile/inc_fatfs.c | 15 | ||||
| -rw-r--r-- | src/gfile/inc_nativefs.c | 98 | ||||
| -rw-r--r-- | src/gfile/inc_ramfs.c | 15 | ||||
| -rw-r--r-- | src/gfile/inc_romfs.c | 87 |
8 files changed, 1233 insertions, 0 deletions
diff --git a/include/gfile/gfile.h b/include/gfile/gfile.h new file mode 100644 index 00000000..bc476956 --- /dev/null +++ b/include/gfile/gfile.h @@ -0,0 +1,189 @@ +/* + * 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 include/gfile/gfile.h + * @brief GFILE - File IO Routines header file. + * + * @addtogroup GFILE + * + * @brief Module which contains Operating system independent FILEIO + * + * @{ + */ + +#ifndef _GFILE_H +#define _GFILE_H + +#include "gfx.h" + +#if GFX_USE_GMISC || defined(__DOXYGEN__) + +/*===========================================================================*/ +/* Type definitions */ +/*===========================================================================*/ + +/** + * @brief A file pointer + */ + +typedef struct GFILE { + const struct GFILEVMT * vmt; + uint16_t flags; + #define GFILEFLG_OPEN 0x0001 // File is open + #define GFILEFLG_READ 0x0002 // Read the file + #define GFILEFLG_WRITE 0x0004 // Write the file + #define GFILEFLG_APPEND 0x0008 // Append on each write + #define GFILEFLG_BINARY 0x0010 // Treat as a binary file + #define GFILEFLG_DELONCLOSE 0x0020 // Delete on close + #define GFILEFLG_CANSEEK 0x0040 // Seek operations are valid + #define GFILEFLG_FAILONBLOCK 0x0080 // Fail on a blocking call + #define GFILEFLG_MUSTEXIST 0x0100 // On open file must exist + #define GFILEFLG_MUSTNOTEXIST 0x0200 // On open file must not exist + #define GFILEFLG_TRUNC 0x0400 // On open truncate the file + void * obj; + long int pos; +} GFILE; + +typedef struct GFILEVMT { + const struct GFILEVMT * next; + uint8_t flags; + #define GFSFLG_WRITEABLE 0x0001 + #define GFSFLG_CASESENSITIVE 0x0002 + #define GFSFLG_SEEKABLE 0x0004 + #define GFSFLG_FAST 0x0010 + #define GFSFLG_SMALL 0x0020 + #define GFSFLG_TEXTMODES 0x0040 + char prefix; + bool_t del(const char *fname); + bool_t exists(const char *fname); + long int filesize(const char *fname); + bool_t ren(const char *oldname, const char *newname); + bool_t open(GFILE *f, const char *fname); + void close(GFILE *f); + int read(GFILE *f, char *buf, int size); + int write(GFILE *f, const char *buf, int size); + bool_t setpos(GFILE *f, long int pos); + long int getsize(GFILE *f); + bool_t eof(GFILE *f); +} GFILEVMT; + +typedef void GFILE; + +extern GFILE *gfileStdIn; +extern GFILE *gfileStdErr; +extern GFILE *gfileStdOut; + +/*===========================================================================*/ +/* External declarations. */ +/*===========================================================================*/ + +//TODO +//FILE * tmpfile ( void ); // Auto-deleting +//char * tmpnam ( char * str ); +//L_tmpnam - Minimum length for temporary file name +//FILENAME_MAX - Maximum length of file names (constant ) +// FOPEN_MAX - Potential limit of simultaneous open streams (constant ) +// TMP_MAX - Number of temporary files (constant ) +//FILE * freopen ( const char * filename, const char * mode, FILE * stream ); +//setbuf +//setvbuf +//fflush +//fscanf +//scanf +//sscanf +//vscanf +//vsscanf +//fgetc +//fgets +//fputc +//fputs +//getc +//getchar +//puts +//ungetc +//void perror (const char * str); + +#ifdef __cplusplus +extern "C" { +#endif + + bool_t gfileExists(const char *fname); + bool_t gfileDelete(const char *fname); + long int gfileGetFilesize(const char *fname); + bool_t gfileRename(const char *oldname, const char *newname); + GFILE * gfileOpen(const char *fname, const char *mode); + void gfileClose(GFILE *f); + size_t gfileRead(GFILE *f, char *buf, size_t len); + size_t gfileWrite(GFILE *f, const char *buf, size_t len); + long int gfileGetPos(GFILE *f); + bool_t gfileSetPos(GFILE *f, long int pos); + long int gfileGetSize(GFILE *f); + bool_t gfileEOF(GFILE *f); + + #if GFILE_NEED_PRINTG + int vfnprintg(GFILE *f, int maxlen, const char *fmt, va_list arg); + int fnprintg(GFILE *f, int maxlen, const char *fmt, ...); + #define vfprintg(f,m,a) vfnprintg(f,0,m,a) + #define fprintg(f,m,...) fnprintg(f,0,m,...) + #define vprintg(m,a) vfnprintg(gfileStdOut,0,m,a) + #define printg(m,...) fnprintg(gfileStdOut,0,m,...) + + #if GFILE_NEED_STRINGS + int vsnprintg(char *buf, int maxlen, const char *fmt, va_list arg); + int snprintg(char *buf, int maxlen, const char *fmt, ...); + #define vsprintg(s,m,a) vsnprintg(s,0,m,a) + #define sprintg(s,m,...) snprintg(s,0,m,...) + #endif + #endif + + + #if GFILE_NEED_STDIO && !defined(GFILE_IMPLEMENTATION) + #define FILE GFILE + #define fopen(n,m) gfileOpen(n,m) + #define fclose(f) gfileClose(f) + size_t gstdioRead(void * ptr, size_t size, size_t count, FILE *f); + size_t gstdioWrite(const void * ptr, size_t size, size_t count, FILE *f); + #define fread(p,sz,cnt,f) gstdioRead(p,sz,cnt,f) + #define fwrite(p,sz,cnt,f) gstdioWrite(p,sz,cnt,f) + int gstdioSeek(FILE *f, size_t offset, int origin); + #define fseek(f,ofs,org) gstdioSeek(f,ofs,org) + #define SEEK_SET 0 + #define SEEK_CUR 1 + #define SEEK_END 2 + #define remove(n) (!gfileDelete(n)) + #define rename(o,n) (!gfileRename(o,n)) + #define fflush(f) (0) + #define ftell(f) gfileGetPos(f) + #define fpos_t long int + int gstdioGetpos(FILE *f, long int *pos); + #define fgetpos(f,pos) gstdioGetpos(f,pos) + #define fsetpos(f, pos) (!gfileSetPos(f, *pos)) + #define rewind(f) gfileSetPos(f, 0); + #define clearerr(f) (0) + #define feof(f) gfileEOF(f) + //#define ferror(f) (0) + + #define vfprintf(f,m,a) vfnprintg(f,0,m,a) + #define fprintf(f,m,...) fnprintg(f,0,m,...) + #define vprintf(m,a) vfnprintg(gfileStdOut,0,m,a) + #define printf(m,...) fnprintg(gfileStdOut,0,m,...) + #define vsnprintf(s,n,m,a) vsnprintg(s,n,m,a) + #define snprintf(s,n,m,...) snprintg(s,n,m,...) + #define vsprintf(s,m,a) vsnprintg(s,0,m,a) + #define sprintf(s,m,...) snprintg(s,0,m,...) + #endif + +#ifdef __cplusplus +} +#endif + +#endif /* GFX_USE_MISC */ + +#endif /* _GMISC_H */ +/** @} */ + diff --git a/include/gfile/options.h b/include/gfile/options.h new file mode 100644 index 00000000..a64937f1 --- /dev/null +++ b/include/gfile/options.h @@ -0,0 +1,149 @@ +/* + * 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 include/gfile/options.h + * @brief GFILE - File IO options header file. + * + * @addtogroup GFILE + * @{ + */ + +#ifndef _GFILE_OPTIONS_H +#define _GFILE_OPTIONS_H + +/** + * @name GFILE Functionality to be included + * @{ + */ + /** + * @brief Include printg, fprintg etc functions + * @details Defaults to FALSE + */ + #ifndef GFILE_NEED_PRINTG + #define GFILE_NEED_PRINTG FALSE + #endif + /** + * @brief Include scang, fscang etc functions + * @details Defaults to FALSE + */ + #ifndef GFILE_NEED_SCANG + #define GFILE_NEED_SCANG FALSE + #endif + /** + * @brief Include the string sprintg/sscang 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 + #endif + /** + * @brief Include scang, fscang, sscang etc functions + * @details Defaults to FALSE + */ + #ifndef GFILE_NEED_SCANG + #define GFILE_NEED_SCANG FALSE + #endif + /** + * @brief Map many stdio functions to their GFILE equivalent + * @details Defaults to FALSE + * @note This replaces the functions in stdio.h with equivalents + * - Do not include stdio.h as it has different conflicting definitions. + */ + #ifndef GFILE_NEED_STDIO + #define GFILE_NEED_STDIO FALSE + #endif + /** + * @brief Include the ROM file system + * @details Defaults to FALSE + * @note If GFILE_ALLOW_DEVICESPECIFIC is on then you can ensure that you are + * opening a file on the ROM file system by prefixing + * its name with "S|" (the letter 'S', followed by a vertical bar). + * @note This requires a file called romfs_files.h to be included in the + * users project. This file includes all the files converted to .h files + * using the file2c utility using the "-r" flag. + */ + #ifndef GFILE_NEED_ROMFS + #define GFILE_NEED_ROMFS FALSE + #endif + /** + * @brief Include the RAM file system + * @details Defaults to FALSE + * @note If GFILE_ALLOW_DEVICESPECIFIC is on then you can ensure that you are + * opening a file on the RAM file system by prefixing + * its name with "R|" (the letter 'R', followed by a vertical bar). + * @note You must also define GFILE_RAMFS_SIZE with the size of the file system + * to be allocated in RAM. + */ + #ifndef GFILE_NEED_RAMFS + #define GFILE_NEED_RAMFS FALSE + #endif + /** + * @brief Include the FAT file system driver + * @details Defaults to FALSE + * @note If GFILE_ALLOW_DEVICESPECIFIC is on then you can ensure that you are + * opening a file on the FAT file system by prefixing + * its name with "F|" (the letter 'F', followed by a vertical bar). + * @note You must separately include the FATFS library and code. + */ + #ifndef GFILE_NEED_FATFS + #define GFILE_NEED_FATFS FALSE + #endif + /** + * @brief Include the operating system's native file system + * @details Defaults to FALSE + * @note If GFILE_ALLOW_DEVICESPECIFIC is on then you can ensure that you are + * opening a file on the native file system by prefixing + * its name with "N|" (the letter 'N', followed by a vertical bar). + * @note If defined then the gfileStdOut and gfileStdErr handles + * use the operating system equivalent stdio and stderr. + * If it is not defined the gfileStdOut and gfileStdErr io is discarded. + */ + #ifndef GFILE_NEED_NATIVEFS + #define GFILE_NEED_NATIVEFS FALSE + #endif +/** + * @} + * + * @name GFILE Optional Parameters + * @{ + */ + /** + * @brief Add floating point support to printg/scang etc. + */ + #ifndef GFILE_ALLOW_FLOATS + #define GFILE_ALLOW_FLOATS + #endif + /** + * @brief Can the device be specified as part of the file name. + * @note If this is on then a device letter and a vertical bar can be + * prefixed on a file name to specify that it must be on a + * specific device. + */ + #ifndef GFILE_ALLOW_DEVICESPECIFIC + #define GFILE_ALLOW_DEVICESPECIFIC FALSE + #endif + /** + * @brief The maximum number of open files + * @note This count excludes gfileStdIn, gfileStdOut and gfileStdErr + * (if open by default). + */ + #ifndef GFILE_MAX_GFILES + #define GFILE_MAX_GFILES 3 + #endif + /** + * @brief The size in bytes of the RAM file system + */ + #ifndef GFILE_RAMFS_SIZE + #define GFILE_RAMFS_SIZE 0 + #endif +/** @} */ + +#endif /* _GFILE_OPTIONS_H */ +/** @} */ diff --git a/src/gfile/gfile.c b/src/gfile/gfile.c new file mode 100644 index 00000000..59dade1f --- /dev/null +++ b/src/gfile/gfile.c @@ -0,0 +1,679 @@ +/* + * 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; + +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 +} + +void _gfileDeinit(void) +{ + /* ToDo */ +} + +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; } |