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v4k-git-backup/engine/split/v4k_file.c

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// -----------------------------------------------------------------------------
// file
#if 0 // ifdef _WIN32
#include <winsock2.h>
#if is(tcc)
#define CP_UTF8 65001
int WINAPI MultiByteToWideChar();
int WINAPI WideCharToMultiByte();
#endif
// widen() ? string1252() ? string16() ? stringw() ?
wchar_t *widen(const char *utf8) { // wide strings (win only)
int chars = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0);
char *buf = va("%.*s", (int)(chars * sizeof(wchar_t)), "");
return MultiByteToWideChar(CP_UTF8, 0, utf8, -1, (void*)buf, chars), (wchar_t *)buf;
}
#define open8(path,mode) ifdef(win, _wopen(widen(path)) , open(path, mode) )
#define fopen8(path,mode) ifdef(win, _wfopen(widen(path),widen(mode)) , fopen(path,mode) )
#define remove8(path) ifdef(win, _wremove(widen(path)) , remove(path) )
#define rename8(path) ifdef(win, _wrename(widen(path)) , rename(path) )
#define stat8(path,st) ifdef(win, _wstat(widen(path),st) , stat(path,st) ) // _stati64()
#define stat8_t ifdef(win, _stat , stat_t ) // struct _stati64
#endif
char *file_name(const char *pathfile) {
char *s = strrchr(pathfile, '/'), *t = strrchr(pathfile, '\\');
return va("%s", s > t ? s+1 : t ? t+1 : pathfile);
}
char *file_base(const char *pathfile) {
char *s = file_name(pathfile);
char *e = file_ext(pathfile);
return s[ strlen(s) - strlen(e) ] = '\0', s;
}
char *file_pathabs( const char *pathfile ) {
char *out = va("%*.s", DIR_MAX+1, "");
#if is(win32)
_fullpath(out, pathfile, DIR_MAX);
#else
realpath(pathfile, out);
#endif
return out;
}
char *file_path(const char *pathfile) {
return va("%.*s", (int)(strlen(pathfile)-strlen(file_name(pathfile))), pathfile);
}
char *file_load(const char *filename, int *len) { // @todo: 32 counters/thread enough?
static __thread array(char) buffer[32] = {0}, *invalid[1];
static __thread unsigned i = 0; i = (i+1) % 32;
FILE *fp = filename[0] ? fopen(filename, "rb") : NULL;
if( fp ) {
fseek(fp, 0L, SEEK_END);
size_t sz = ftell(fp);
fseek(fp, 0L, SEEK_SET);
array_resize(buffer[i], sz+1);
sz *= fread(buffer[i],sz,1,fp) == 1;
buffer[i][sz] = 0;
if(len) *len = (int)sz;
fclose(fp);
return buffer[i]; // @fixme: return 0 on error instead?
}
if (len) *len = 0;
return 0;
}
char *file_read(const char *filename) { // @todo: fix leaks
return file_load(filename, NULL);
}
bool file_write(const char *name, const void *ptr, int len) {
bool ok = 0;
for( FILE *fp = name && ptr && len >= 0 ? fopen(name, "wb") : NULL; fp; fclose(fp), fp = 0) {
ok = fwrite(ptr, len,1, fp) == 1;
}
return ok;
}
bool file_append(const char *name, const void *ptr, int len) {
bool ok = 0;
for( FILE *fp = name && ptr && len >= 0 ? fopen(name, "a+b") : NULL; fp; fclose(fp), fp = 0) {
ok = fwrite(ptr, len,1, fp) == 1;
}
return ok;
}
static bool file_stat(const char *fname, struct stat *st) {
// remove ending slashes. win32+tcc does not like them.
int l = strlen(fname), m = l;
while( l && (fname[l-1] == '/' || fname[l-1] == '\\') ) --l;
fname = l == m ? fname : va("%.*s", l, fname);
return stat(fname, st) >= 0;
}
uint64_t file_stamp(const char *fname) {
struct stat st;
return !file_stat(fname, &st) ? 0ULL : st.st_mtime;
}
uint64_t file_stamp10(const char *fname) {
time_t mtime = (time_t)file_stamp(fname);
struct tm *ti = localtime(&mtime);
return atoi64(va("%04d%02d%02d%02d%02d%02d",ti->tm_year+1900,ti->tm_mon+1,ti->tm_mday,ti->tm_hour,ti->tm_min,ti->tm_sec));
}
uint64_t file_size(const char *fname) {
struct stat st;
return !file_stat(fname, &st) ? 0ULL : st.st_size;
}
bool file_directory( const char *pathfile ) {
struct stat st;
return !file_stat(pathfile, &st) ? 0 : S_IFDIR == ( st.st_mode & S_IFMT );
}
bool file_exist(const char *fname) {
struct stat st;
return !file_stat(fname, &st) ? false : true;
}
char *file_normalize(const char *name) {
char *copy = va("%s", name), *s = copy, c;
#if is(win32)
for( int i = 0; copy[i]; ++i ) { if(copy[i] == '/') copy[i] = '\\'; if(copy[i] == '\'') copy[i] = '\"'; }
#else
for( int i = 0; copy[i]; ++i ) { if(copy[i] == '\\') copy[i] = '/'; if(copy[i] == '\"') copy[i] = '\''; }
#endif
return copy;
}
#if 0
char *file_normalize(const char *name) {
char *copy = va("%s", name), *s = copy, c;
// lowercases+digits+underscores+slashes only. anything else is truncated.
for( ; *name ; ++name ) {
/**/ if( *name >= 'a' && *name <= 'z' ) *s++ = *name;
else if( *name >= 'A' && *name <= 'Z' ) *s++ = *name - 'A' + 'a';
else if( *name >= '0' && *name <= '9' ) *s++ = *name;
else if( *name == '/' || *name == '\\') *s++ = '/';
else if( *name <= ' ' || *name == '.' ) *s++ = '_';
} *s++ = 0;
// remove dupe slashes
for( name = s = copy, c = '/'; *name ; ) {
while( *name && *name != c ) *s++ = *name++;
if( *name ) *s++ = c;
while( *name && *name == c ) name++;
} *s++ = 0;
// remove dupe underlines
for( name = s = copy, c = '_'; *name ; ) {
while( *name && *name != c ) *s++ = *name++;
if( *name ) *s++ = c;
while( *name && *name == c ) name++;
} *s++ = 0;
return copy;
}
char *file_normalize_with_folder(const char *name) {
char *s = file_normalize(name);
char *slash = strrchr(s, '/'); if(slash) *slash = 0;
char *penultimate = strrchr(s, '/'); if(slash) *slash = '/';
return penultimate ? penultimate+1 : /*slash ? slash+1 :*/ s;
}
#endif
char *file_ext(const char *name) {
char *b = file_name(name), *s = strchr(b, '.'); //strrchr(name, '.');
return va("%s", s ? s : "" ); // , name );
}
char *file_id(const char *pathfile) {
char *dir = file_path(pathfile); for(int i=0;dir[i];++i) dir[i]=tolower(dir[i]);
char *base = file_name(pathfile); for(int i=0;base[i];++i) base[i]=tolower(base[i]);
#if 0 // extensionless, larry.mid and larry.txt will collide, diffuse.tga and diffuse.png will match
char *ext = strchr(base, '.'); if (ext) ext[0] = '\0'; // remove all extensions
#else // extensionless for audio/images only (materials: diffuse.tga and diffuse.png will match)
char *ext = strrchr(base, '.'); //if (ext) ext[0] = '\0'; // remove all extensions
if(ext) if( strstr(".jpg.png.bmp.tga.hdr"".", ext) || strstr(".ogg.mp3.wav.mod.xm.flac"".", ext) || strstr(".mp4.ogv.avi.mkv.wmv.mpg.mpeg"".", ext) ) {
ext = strchr(base, '.');
ext[0] = '\0'; //strcpy(ext, "_xxx");
}
#endif
// if (!dir[0]) return base;
char *stem = va("%s/%s", dir, base); // file_name(dir);
// /path2/path1/file2_file1 -> file1_file2/path1/path2
int len = 0;
int ids_count = 0;
char ids[64][64] = { 0 };
// split path stems
for each_substring(stem, "/\\@", key) {
int tokens_count = 0;
char* tokens[64] = { 0 };
// split tokens
for each_substring(key, "[]()_ ", it) {
tokens[tokens_count++] = va("%s", it);
}
// sort alphabetically
if( tokens_count > 1 ) qsort(tokens, tokens_count, sizeof(char *), strcmp_qsort);
// concat sorted token1_token2_...
char built[256]; *built = 0;
for( int i = 0; i < tokens_count; ++i ) {
strlcat(built, "_", 256);
strlcat(built, tokens[i], 256);
}
strncpy( ids[ ids_count ], &built[1], 64 );
len += strlen( ids[ ids_count++ ] );
}
// concat in inverse order: file/path1/path2/...
char buffer[DIR_MAX]; buffer[0] = 0;
for( int it = ids_count; --it >= 0; ) {
strcat(buffer, ids[it]);
strcat(buffer, "/");
}
return va("%s", buffer);
}
const char** file_list(const char *cwds, const char *masks) {
static __thread array(char*) list = 0; // @fixme: should we add 16 slots in here similar to what we do in va() ?
for( int i = 0; i < array_count(list); ++i ) {
FREE(list[i]);
}
array_resize(list, 0);//array_free(list);
for each_substring(cwds,";",cwd) {
ASSERT(strend(cwd, "/"), "Error: dirs like '%s' must end with slash", cwd);
dir *d = dir_open(cwd, strstr(masks,"**") ? "r" : "");
if( d ) {
for( int i = 0; i < dir_count(d); ++i ) {
if( dir_file(d,i) ) {
// dir_name() should return full normalized paths "C:/prj/v4k/demos/art/fx/fxBloom.fs". should exclude system dirs as well
char *entry = dir_name(d,i);
char *fname = file_name(entry);
int allowed = 0;
for each_substring(masks,";",mask) {
allowed |= strmatch(fname, mask);
}
if( !allowed ) continue;
// if( strstr(fname, "/.") ) continue; // @fixme: still needed? useful?
// insert copy
char *copy = STRDUP(entry);
array_push(list, copy);
}
}
dir_close(d);
}
}
array_push(list, 0); // terminator
return (const char**)list;
}
bool file_move(const char *src, const char *dst) {
bool ok = file_exist(src) && !file_exist(dst) && 0 == rename(src, dst);
return ok;
}
bool file_delete(const char *pathfile) {
if( file_exist(pathfile) ) {
for( int i = 0; i < 10; ++i ) {
bool ok = 0 == unlink(pathfile);
if( ok ) return true;
sleep_ms(10);
}
return false;
}
return true;
}
bool file_copy(const char *src, const char *dst) {
int ok = 0, BUFSIZE = 1 << 20; // 1 MiB
static __thread char *buffer = 0; do_once buffer = REALLOC(0, BUFSIZE);
for( FILE *in = fopen(src, "rb"); in; fclose(in), in = 0) {
for( FILE *out = fopen(dst, "wb"); out; fclose(out), out = 0, ok = 1) {
for( int n; !!(n = fread( buffer, 1, BUFSIZE, in )); ){
if(fwrite( buffer, 1, n, out ) != n)
return fclose(in), fclose(out), false;
}
}
}
return ok;
}
char* file_tempname() {
static __thread int id;
return va("%s/v4k-temp.%s.%p.%d", app_temp(), getenv(ifdef(win32, "username", "USER")), &id, rand());
}
FILE *file_temp(void) {
const char *fname = file_tempname();
FILE *fp = fopen(fname, "w+b");
if( fp ) unlink(fname);
return fp;
}
char *file_counter(const char *name) {
static __thread char outfile[DIR_MAX], init = 0;
static __thread map(char*, int) ext_counters;
if(!init) map_init(ext_counters, less_str, hash_str), init = '\1';
char *base = va("%s",name), *ext = file_ext(name);
if(ext && ext[0]) *strstr(base, ext) = '\0';
int *counter = map_find_or_add(ext_counters, ext, 0);
while( *counter >= 0 ) {
*counter = *counter + 1;
sprintf(outfile, "%s(%03d)%s", base, *counter, ext);
if( !file_exist(outfile) ) {
return va("%s", outfile);
}
}
return 0;
}
enum { MD5_HASHLEN = 16 };
enum { SHA1_HASHLEN = 20 };
enum { CRC32_HASHLEN = 4 };
void* file_sha1(const char *file) { // 20bytes
hash_state hs = {0};
sha1_init(&hs);
for( FILE *fp = fopen(file, "rb"); fp; fclose(fp), fp = 0) {
char buf[8192];
for( int inlen; (inlen = fread(buf, 1, sizeof(buf), fp)) > 0; ) {
sha1_process(&hs, (const unsigned char *)buf, inlen);
}
}
unsigned char *hash = va("%.*s", SHA1_HASHLEN, "");
sha1_done(&hs, hash);
return hash;
}
void* file_md5(const char *file) { // 16bytes
hash_state hs = {0};
md5_init(&hs);
for( FILE *fp = fopen(file, "rb"); fp; fclose(fp), fp = 0) {
char buf[8192];
for( int inlen; (inlen = fread(buf, 1, sizeof(buf), fp)) > 0; ) {
md5_process(&hs, (const unsigned char *)buf, inlen);
}
}
unsigned char *hash = va("%.*s", MD5_HASHLEN, "");
md5_done(&hs, hash);
return hash;
}
void* file_crc32(const char *file) { // 4bytes
unsigned crc = 0;
for( FILE *fp = fopen(file, "rb"); fp; fclose(fp), fp = 0) {
char buf[8192];
for( int inlen; (inlen = fread(buf, 1, sizeof(buf), fp)) > 0; ) {
crc = zip__crc32(crc, buf, inlen); // unsigned int stbiw__crc32(unsigned char *buffer, int len)
}
}
unsigned char *hash = va("%.*s", (int)sizeof(crc), "");
memcpy(hash, &crc, sizeof(crc));
return hash;
}
#if 0
void* crc32_mem(const void *ptr, int inlen) { // 4bytes
unsigned hash = 0;
hash = zip__crc32(hash, ptr, inlen); // unsigned int stbiw__crc32(unsigned char *buffer, int len)
return hash;
}
void* md5_mem(const void *ptr, int inlen) { // 16bytes
hash_state hs = {0};
md5_init(&hs);
md5_process(&hs, (const unsigned char *)ptr, inlen);
unsigned char *hash = va("%.*s", MD5_HASHLEN, "");
md5_done(&hs, hash);
return hash;
}
void* sha1_mem(const void *ptr, int inlen) { // 20bytes
hash_state hs = {0};
sha1_init(&hs);
sha1_process(&hs, (const unsigned char *)ptr, inlen);
unsigned char *hash = va("%.*s", SHA1_HASHLEN, "");
sha1_done(&hs, hash);
return hash;
}
unsigned crc32_mem(unsigned h, const void *ptr_, unsigned len) {
// based on public domain code by Karl Malbrain
const uint8_t *ptr = (const uint8_t *)ptr_;
if (!ptr) return 0;
const unsigned tbl[16] = {
0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c };
for(h = ~h; len--; ) { uint8_t b = *ptr++; h = (h >> 4) ^ tbl[(h & 15) ^ (b & 15)]; h = (h >> 4) ^ tbl[(h & 15) ^ (b >> 4)]; }
return ~h;
}
uint64_t crc64_mem(uint64_t h, const void *ptr, uint64_t len) {
// based on public domain code by Lasse Collin
// also, use poly64 0xC96C5795D7870F42 for crc64-ecma
static uint64_t crc64_table[256];
static uint64_t poly64 = UINT64_C(0x95AC9329AC4BC9B5);
if( poly64 ) {
for( int b = 0; b < 256; ++b ) {
uint64_t r = b;
for( int i = 0; i < 8; ++i ) {
r = r & 1 ? (r >> 1) ^ poly64 : r >> 1;
}
crc64_table[ b ] = r;
//printf("%016llx\n", crc64_table[b]);
}
poly64 = 0;
}
const uint8_t *buf = (const uint8_t *)ptr;
uint64_t crc = ~h; // ~crc;
while( len != 0 ) {
crc = crc64_table[(uint8_t)crc ^ *buf++] ^ (crc >> 8);
--len;
}
return ~crc;
}
// https://en.wikipedia.org/wiki/MurmurHash
static inline uint32_t murmur3_scramble(uint32_t k) {
return k *= 0xcc9e2d51, k = (k << 15) | (k >> 17), k *= 0x1b873593;
}
uint32_t murmur3_mem(const uint8_t* key, size_t len, uint32_t seed) {
uint32_t h = seed;
uint32_t k;
/* Read in groups of 4. */
for (size_t i = len >> 2; i; i--) {
// Here is a source of differing results across endiannesses.
// A swap here has no effects on hash properties though.
k = *((uint32_t*)key);
key += sizeof(uint32_t);
h ^= murmur3_scramble(k);
h = (h << 13) | (h >> 19);
h = h * 5 + 0xe6546b64;
}
/* Read the rest. */
k = 0;
for (size_t i = len & 3; i; i--) {
k <<= 8;
k |= key[i - 1];
}
// A swap is *not* necessary here because the preceeding loop already
// places the low bytes in the low places according to whatever endianness
// we use. Swaps only apply when the memory is copied in a chunk.
h ^= murmur3_scramble(k);
/* Finalize. */
h ^= len;
h ^= h >> 16;
h *= 0x85ebca6b;
h ^= h >> 13;
h *= 0xc2b2ae35;
h ^= h >> 16;
return h;
}
#endif
// -----------------------------------------------------------------------------
// storage (emscripten only)
void storage_mount(const char* folder) {
#if is(ems)
emscripten_run_script(va("FS.mkdir('%s'); FS.mount(IDBFS, {}, '%s');", folder, folder));
#else
(void)folder;
#endif
}
void storage_read() {
#if is(ems)
EM_ASM(
/* sync from persisted state into memory */
FS.syncfs(true, function (err) {
assert(!err);
});
);
#endif
}
void storage_flush() {
#if is(ems)
EM_ASM(
FS.syncfs(false, function (err) {
assert(!err);
});
);
#endif
}
// -----------------------------------------------------------------------------
// compressed archives
// return list of files inside zipfile
array(char*) file_zip_list(const char *zipfile) {
static __thread array(char*) list[16] = {0};
static __thread int count = 0;
count = (count+1) % 16;
array_resize(list[count], 0);
for( zip *z = zip_open(zipfile, "rb"); z; zip_close(z), z = 0) {
for( unsigned i = 0; i < zip_count(z); ++i ) {
array_push( list[count], zip_name(z, i) );
}
}
return list[count];
}
// extract single file content from zipfile
array(char) file_zip_extract(const char *zipfile, const char *filename) {
static __thread array(char) list[16] = {0};
static __thread int count = 0;
array(char) out = list[count = (count+1) % 16];
array_resize(out, 0);
for( zip *z = zip_open(zipfile, "rb"); z; zip_close(z), z = 0) {
int index = zip_find(z, filename); // convert entry to index. returns <0 if not found.
if( index < 0 ) return zip_close(z), out;
unsigned outlen = zip_size(z, index);
unsigned excess = zip_excess(z, index);
array_resize(out, outlen + 1 + excess);
unsigned ret = zip_extract_inplace(z, index, out, array_count(out));
if(ret) { out[outlen] = '\0'; array_resize(out, outlen); } else { array_resize(out, 0); }
}
return out;
}
// append single file into zipfile. compress with DEFLATE|6. Other compressors are also supported (try LZMA|5, ULZ|9, LZ4X|3, etc.)
bool file_zip_append(const char *zipfile, const char *filename, int clevel) {
bool ok = false;
for( zip *z = zip_open(zipfile, "a+b"); z; zip_close(z), z = 0) {
for( FILE *fp = fopen(filename, "rb"); fp; fclose(fp), fp = 0) {
ok = zip_append_file(z, filename, "", fp, clevel);
}
}
return ok;
}
// append mem blob into zipfile. compress with DEFLATE|6. Other compressors are also supported (try LZMA|5, ULZ|9, LZ4X|3, etc.)
// @fixme: implement zip_append_mem() and use that instead
bool file_zip_appendmem(const char *zipfile, const char *entryname, const void *ptr, unsigned len, int clevel) {
bool ok = false;
if( ptr )
for( zip *z = zip_open(zipfile, "a+b"); z; zip_close(z), z = 0) {
ok = zip_append_mem(z, entryname, "", ptr, len, clevel);
}
return ok;
}
// -----------------------------------------------------------------------------
// archives
enum { is_zip, is_tar, is_pak, is_dir };
typedef struct archive_dir {
char* path;
union {
int type;
int size; // for cache only
};
union {
void *archive;
void *data; // for cache only
zip* zip_archive;
tar* tar_archive;
pak* pak_archive;
};
struct archive_dir *next;
} archive_dir;
static archive_dir *dir_mount;
static archive_dir *dir_cache;
#ifndef MAX_CACHED_FILES // @todo: should this be MAX_CACHED_SIZE (in MiB) instead?
#define MAX_CACHED_FILES 32 // @todo: should we cache the cooked contents instead? ie, stbi() result instead of file.png?
#endif
struct vfs_entry {
const char *name;
const char *id;
unsigned size;
};
array(struct vfs_entry) vfs_hints; // mounted raw assets
array(struct vfs_entry) vfs_entries; // mounted cooked assets
static bool vfs_mount_hints(const char *path);
static
void vfs_reload() {
const char *app = app_name();
array_resize(vfs_hints, 0); // @leak
array_resize(vfs_entries, 0); // @leak
// mount virtual filesystems later (mounting order matters: low -> to -> high priority)
#if defined(EMSCRIPTEN)
vfs_mount("index.zip");
#else
/* // old way
for( int i = 0; i < JOBS_MAX; ++i) {
if( vfs_mount(va(".art[%02x].zip", i)) ) continue;
if( vfs_mount(va("%s[%02x].zip", app, i)) ) continue;
if( vfs_mount(va("%s%02x.zip", app, i)) ) continue;
// if( vfs_mount(va("%s.%02x", app, i)) ) continue;
} */
// faster way
for( const char **file = file_list("./","*.zip"); *file; ++file) vfs_mount(*file);
#endif
// vfs_resolve() will use these art_folder locations as hints when cook-on-demand is in progress.
// cook-on-demand will not be able to resolve a virtual pathfile if there are no cooked assets on disk,
// unless there is a record of what's actually on disk somewhere, and that's where the hints belong to.
for each_substring(ART,",",art_folder) {
vfs_mount_hints(art_folder);
}
}
static
bool vfs_mount_(const char *path, array(struct vfs_entry) *entries) {
zip *z = NULL; tar *t = NULL; pak *p = NULL; dir *d = NULL;
int is_folder = ('/' == path[strlen(path)-1]);
if( is_folder ) d = dir_open(path, "rb");
if( is_folder && !d ) return 0;
if( !is_folder ) z = zip_open(path, "rb");
if( !is_folder && !z ) t = tar_open(path, "rb");
if( !is_folder && !z && !t ) p = pak_open(path, "rb");
if( !is_folder && !z && !t && !p ) return 0;
// normalize input -> "././" to ""
while (path[0] == '.' && path[1] == '/') path += 2;
path = STRDUP(path);
if( z || t || p ) {
// save local path for archives, so we can subtract those from upcoming requests
if(strrchr(path,'/')) strrchr(path,'/')[1] = '\0';
} else if(d) 0[(char*)path] = 0;
// append to mounted archives
archive_dir *prev = dir_mount, zero = {0};
*(dir_mount = REALLOC(0, sizeof(archive_dir))) = zero;
dir_mount->next = prev;
dir_mount->path = (char*)path;
dir_mount->archive = z ? (void*)z : t ? (void*)t : p ? (void*)p : (void*)d;
dir_mount->type = is_folder ? is_dir : z ? is_zip : t ? is_tar : p ? is_pak : -1;
ASSERT(dir_mount->type >= 0 && dir_mount->type < 4);
// append list of files to internal listing
for( archive_dir *dir = dir_mount; dir ; dir = 0 ) { // for(archive_dir *dir = dir_mount; dir; dir = dir->next) {
assert(dir->type >= 0 && dir->type < 4);
unsigned (*fn_count[4])(void*) = {(void*)zip_count, (void*)tar_count, (void*)pak_count, (void*)dir_count};
char* (*fn_name[4])(void*, unsigned index) = {(void*)zip_name, (void*)tar_name, (void*)pak_name, (void*)dir_name};
unsigned (*fn_size[4])(void*, unsigned index) = {(void*)zip_size, (void*)tar_size, (void*)pak_size, (void*)dir_size};
for( unsigned idx = 0, end = fn_count[dir->type](dir->archive); idx < end; ++idx ) {
assert(idx < end);
const char *filename = STRDUP( fn_name[dir->type](dir->archive, idx) );
const char *fileid = STRDUP( file_id(filename) );
unsigned filesize = fn_size[dir->type](dir->archive, idx);
// printf("%u) %s %u [%s]\n", idx, filename, filesize, fileid);
// append to list
array_push(*entries, (struct vfs_entry){filename, fileid, filesize});
}
}
return 1;
}
static
bool vfs_mount_hints(const char *path) {
return vfs_mount_(path, &vfs_hints);
}
bool vfs_mount(const char *path) {
return vfs_mount_(path, &vfs_entries);
}
const char** vfs_list(const char *masks) {
static __thread array(char*) list = 0;
for( int i = 0; i < array_count(list); ++i ) {
FREE(list[i]);
}
array_free(list);
for each_substring(masks,";",it) {
if( COOK_ON_DEMAND ) // edge case: any game using only vfs api + cook-on-demand flag will never find any file
for(const char **items = file_list("./", it); *items; items++) {
// insert copy
char *copy = STRDUP(*items);
array_push(list, copy);
}
it = va("*/%s", it);
// int recurse = !!strstr(it, "**"); // @fixme: support non-recursive
for( unsigned i = 0; i < array_count(vfs_entries); ++i ) {
const char *name = vfs_entries[i].name;
if( strmatch(name, it) ) {
// insert copy
char *copy = STRDUP(name);
array_push(list, copy);
}
}
}
// sort alphabetically then remove dupes
array_sort(list, strcmp);
array_unique(list, strcmp_qsort);
array_push(list, 0); // terminator
return (const char**)list;
}
static
char *vfs_unpack(const char *pathfile, int *size) { // must FREE() after use
// @todo: add cache here
char *data = NULL;
for(archive_dir *dir = dir_mount; dir && !data; dir = dir->next) {
if( dir->type == is_dir ) {
#if 0 // sandboxed
char buf[DIR_MAX];
snprintf(buf, sizeof(buf), "%s%s", dir->path, pathfile);
data = file_load(buf, size);
#endif
} else {
int (*fn_find[3])(void *, const char *) = {(void*)zip_find, (void*)tar_find, (void*)pak_find};
void* (*fn_unpack[3])(void *, unsigned) = {(void*)zip_extract, (void*)tar_extract, (void*)pak_extract};
unsigned (*fn_size[3])(void *, unsigned) = {(void*)zip_size, (void*)tar_size, (void*)pak_size};
#if 0
const char* cleanup = pathfile + strbegi(pathfile, dir->path) * strlen(dir->path);
while (cleanup[0] == '/') ++cleanup;
#else
const char *cleanup = pathfile;
#endif
int index = fn_find[dir->type](dir->archive, cleanup);
data = fn_unpack[dir->type](dir->archive, index);
if( size ) *size = fn_size[dir->type](dir->archive, index);
}
// printf("%c trying %s in %s ...\n", data ? 'Y':'N', pathfile, dir->path);
}
//wait_ms(1000); // <-- simulate slow hdd
return data;
}
const char *vfs_resolve(const char *pathfile) {
// we dont resolve absolute paths. they dont belong to the vfs
// if( pathfile[0] == '/' || pathfile[0] == '\\' || pathfile[1] == ':' ) return pathfile;
char* id = file_id(pathfile);
// find best match (vfs_entries first)
for (int i = array_count(vfs_entries); --i >= 0; ) {
if (strbegi(vfs_entries[i].id, id) ) {
return vfs_entries[i].name;
}
}
// find best match (vfs_hints later)
for (int i = array_count(vfs_hints); --i >= 0; ) {
if (strbegi(vfs_hints[i].id, id) ) {
return vfs_hints[i].name;
}
}
return pathfile;
}
char* vfs_load(const char *pathfile, int *size_out) { // @todo: fix leaks, vfs_unpack()
// @fixme: handle \\?\ absolute path (win)
if (!pathfile[0]) return file_load(pathfile, size_out);
while( pathfile[0] == '.' && (pathfile[1] == '/' || pathfile[1] == '\\') ) pathfile += 2;
// if (pathfile[0] == '/' || pathfile[1] == ':') return file_load(pathfile, size_out); // @fixme: handle current cooked /home/V4K or C:/V4K path cases within zipfiles
if( size_out ) *size_out = 0;
if( strend(pathfile, "/") ) return 0; // it's a dir
static __thread map(char*,int) misses = 0, *init = 0; if(!init) init = misses, map_init(misses, less_str, hash_str);
int *found = map_find_or_add_allocated_key(misses, STRDUP(pathfile), -1); // [-1]non-init,[false]could not cook,[true]cooked
if( found && *found == 0 ) {
return 0;
}
//{
// exclude garbage from material names
// @todo: exclude double slashs in paths
char *base = file_name(pathfile); if(strchr(base,'+')) base = strchr(base, '+')+1;
if(base[0] == '\0') return 0; // it's a dir
char *folder = file_path(pathfile);
pathfile = va("%s%s", folder, base);
// solve virtual path
pathfile = va("%s", vfs_resolve(pathfile));
base = file_name(pathfile);
if(base[0] == '\0') return 0; // it's a dir
folder = file_path(pathfile);
// ease folders reading by shortening them: /home/rlyeh/prj/v4k/art/demos/audio/coin.wav -> demos/audio/coin.wav
// or C:/prj/v4k/engine/art/fonts/B612-BoldItalic.ttf -> fonts/B612-BoldItalic.ttf
static array(char*) art_paths = 0;
do_once for each_substring(ART,",",stem) array_push(art_paths, STRDUP(stem));
char* pretty_folder = "";
if( folder ) for( int i = 0; i < array_count(art_paths); ++i ) {
if( strbeg(folder, art_paths[i]) ) { pretty_folder = folder + strlen(art_paths[i]); break; }
}
//}
int size = 0;
void *ptr = 0;
#if 0
// clean pathfile
while (pathfile[0] == '.' && pathfile[1] == '/') pathfile += 2;
while (pathfile[0] == '/') ++pathfile;
#endif
const char *lookup_id = /*file_normalize_with_folder*/(pathfile);
// search (last item)
static char last_item[256] = { 0 };
static void *last_ptr = 0;
static int last_size = 0;
if( !strcmpi(lookup_id, last_item)) {
ptr = last_ptr;
size = last_size;
}
// search (cache)
if( !ptr ) {
ptr = cache_lookup(lookup_id, &size);
}
if( ptr ) {
PRINTF("Loading VFS (%s)%s (cached)\n", pretty_folder, base);
} else {
PRINTF("Loading VFS (%s)%s\n", pretty_folder, base);
}
// read cooked asset from mounted disks
if( !ptr ) {
ptr = vfs_unpack(pathfile, &size);
// asset not found? maybe it has not been cooked yet at this point (see --cook-on-demand)
if( !ptr && COOK_ON_DEMAND ) {
static thread_mutex_t mutex, *init = 0; if(!init) thread_mutex_init(init = &mutex);
thread_mutex_lock(&mutex);
// this block saves some boot time (editor --cook-on-demand: boot 1.50s -> 0.90s)
#if 1 // EXPERIMENTAL_DONT_COOK_NON_EXISTING_ASSETS
static set(char*) disk = 0;
if(!disk) { set_init_str(disk); for each_substring(ART,",",art_folder) for( const char **list = file_list(art_folder,"**"); *list; ++list) set_insert(disk, STRDUP(*list)); }
int found = !!set_find(disk, (char*)pathfile);
if( found )
#endif
{
// technically, we should only cook `base` asset at this point. however, cooks on demand can be very
// expensive. not only because we're invoking an external tool/cook app in here, which is scanning all the
// cook folders at every call, but also because there is this expensive vfs_reload() call at end of current scope.
// so, in order to minimize the number of upcoming cook requests, we cook more stuff than needed at this point;
// just in anticipation of what's likely going to happen in the next frames.
// so, when asked to cook "models/model.fbx" we actually:
// - do cook "models/model.* (so, "model.tga","model.png","model.jpg","model.mtl",etc. are also cooked)
// - do cook "models/*.fbx" as well
char *dir = file_path(pathfile + ART_SKIP_ROOT);
char *group1 = dir[0] ? va("\"*/%s%s.*\"", dir, file_base(pathfile)) : base; // -> "*/models/model.*"
char *group2 = dir[0] ? va("\"*/%s*%s\"", dir, file_ext(pathfile)) : ""; // -> "*/models/*.fbx"
char *cmd = va("%scook" ifdef(osx,".osx",ifdef(linux,".linux",".exe"))" %s %s --cook-ini=%s --cook-additive --cook-jobs=1 --quiet", TOOLS, group1, group2, COOK_INI);
// cook groups
int rc = system(cmd);
if(rc < 0) PANIC("cannot invoke `%scook` (return code %d)", TOOLS, rc);
vfs_reload(); // @todo: optimize me. it is waaay inefficent to reload the whole VFS layout after cooking a single asset
}
thread_mutex_unlock(&mutex);
// finally, try again
pathfile = va("%s", vfs_resolve(pathfile));
ptr = vfs_unpack(pathfile, &size);
}
if( ptr ) {
cache_insert(lookup_id, ptr, size);
}
}
if( ptr && size )
if( ptr != last_ptr) {
snprintf(last_item, 256, "%s", lookup_id);
last_ptr = ptr;
last_size = size;
}
// yet another last resort: redirect vfs_load() calls to file_load()
// (for environments without tools or cooked assets)
if(!ptr) {
static bool have_tools; do_once have_tools = file_exist(COOK_INI);
if( !have_tools ) {
ptr = file_load(pathfile, size_out);
}
}
if(!ptr) {
PRINTF("Loading %s (not found)\n", pathfile);
}
*found = ptr ? true : false;
if( size_out ) *size_out = ptr ? size : 0;
return ptr;
}
char* vfs_read(const char *pathfile) {
return vfs_load(pathfile, NULL);
}
int vfs_size(const char *pathfile) {
int sz;
return vfs_load(pathfile, &sz), sz;
}
FILE* vfs_handle(const char *pathfile) {
// @fixme: non-compressible assets (adpcm wavs,mp3,ogg,mp4,avi,...) are taking a suboptimal code path here.
// no need to unzip them. just seek within the zipfile and return the *fp at that position
int sz;
char *buf = vfs_load(pathfile, &sz);
FILE *fp = fmemopen(buf ? buf : "", buf ? sz : 0, "r+b");
ASSERT( fp, "cannot create tempfile" );
return fp;
}
#if 0
const char *vfs_extract(const char *pathfile) { // extract a vfs file into the local (temp) filesystem
#if 0
FILE* fp = vfs_handle(pathfile);
return fp ? pathfile_from_handle(fp) : "";
#else
int sz;
char *buf = vfs_load(pathfile, &sz);
if( !buf ) return "";
// pool of temp files. recycles after every loop
enum { MAX_TEMP_FILES = 16 };
static __thread char temps[MAX_TEMP_FILES][DIR_MAX] = {0};
static __thread int i = 0;
if( temps[i][0] ) unlink(temps[i]);
i = (i + 1) % MAX_TEMP_FILES;
if(!temps[i][0] ) snprintf(temps[i], DIR_MAX, "%s", file_tempname());
char *name = temps[i];
FILE *tmp = fopen(name, "wb"); //unlink(name);
ASSERT( tmp, "cannot create tempfile %s", name );
fwrite(buf ? buf : "", 1, buf ? sz : 0, tmp);
fclose(tmp);
return name;
#endif
}
#endif
// -----------------------------------------------------------------------------
// cache
void* cache_lookup(const char *pathfile, int *size) { // find key->value
if( !MAX_CACHED_FILES ) return 0;
for(archive_dir *dir = dir_cache; dir; dir = dir->next) {
if( !strcmp(dir->path, pathfile) ) {
if(size) *size = dir->size;
return dir->data;
}
}
return 0;
}
void* cache_insert(const char *pathfile, void *ptr, int size) { // append key/value; return LRU or NULL
if( !MAX_CACHED_FILES ) return 0;
if( !ptr || !size ) return 0;
// append to cache
archive_dir zero = {0}, *old = dir_cache;
*(dir_cache = REALLOC(0, sizeof(archive_dir))) = zero;
dir_cache->next = old;
dir_cache->path = STRDUP(pathfile);
dir_cache->size = size;
dir_cache->data = REALLOC(0, size+1);
memcpy(dir_cache->data, ptr, size); size[(char*)dir_cache->data] = 0; // copy+terminator
// keep cached files within limits
static int added = 0;
if( added < MAX_CACHED_FILES ) {
++added;
} else {
// remove oldest cache entry
for( archive_dir *prev = dir_cache, *dir = prev; dir ; prev = dir, dir = dir->next ) {
if( !dir->next ) {
prev->next = 0; // break link
void *data = dir->data;
dir->path = REALLOC(dir->path, 0);
dir->data = REALLOC(dir->data, 0);
dir = REALLOC(dir, 0);
return data;
}
}
}
return 0;
}
// ----------------------------------------------------------------------------
// ini
/* ini+, extended ini format
// - rlyeh, public domain
//
// # spec
//
// ; line comment
// [user] ; map section name (optional)
// name=john ; key and value (mapped here as user.name=john)
// +surname=doe jr. ; sub-key and value (mapped here as user.name.surname=doe jr.)
// age=30 ; numbers
// color=240 ; key and value \
// color=253 ; key and value |> array: color[0], color[1] and color[2]
// color=255 ; key and value /
// color= ; remove key/value(s)
// color=white ; recreate key; color[1] and color[2] no longer exist
// [] ; unmap section
// -note=keys may start with symbols (except plus and semicolon)
// -note=linefeeds are either \r, \n or \r\n.
// -note=utf8 everywhere.
*/
static
char *ini_parse( const char *s ) {
char *map = 0;
int mapcap = 0, maplen = 0;
enum { DEL, REM, TAG, KEY, SUB, VAL } fsm = DEL;
const char *cut[6] = {0}, *end[6] = {0};
while( *s ) {
while( *s && (*s == ' ' || *s == '\t' || *s == '\r' || *s == '\n') ) ++s;
/**/ if( *s == ';' ) cut[fsm = REM] = ++s;
else if( *s == '[' ) cut[fsm = TAG] = ++s;
else if( *s == '+' ) cut[fsm = SUB] = ++s;
else if( *s == '=' ) cut[fsm = VAL] = ++s;
else if( *s > ' ' && *s <= 'z' && *s != ']' ) cut[fsm = KEY] = cut[SUB] = end[SUB] = s;
else { if( *s ) ++s; continue; }
/**/ if( fsm == REM ) { while(*s && *s != '\r'&& *s != '\n') ++s; }
else if( fsm == TAG ) { while(*s && *s != '\r'&& *s != '\n'&& *s != ']') ++s; end[TAG] = s; }
else if( fsm == KEY ) { while(*s && *s > ' ' && *s <= 'z' && *s != '=') ++s; end[KEY] = s; }
else if( fsm == SUB ) { while(*s && *s > ' ' && *s <= 'z' && *s != '=') ++s; end[SUB] = s; }
else if( fsm == VAL ) { while(*s && *s >= ' ' && *s <= 127 && *s != ';') ++s; end[VAL] = s;
while( end[VAL][-1] <= ' ' ) { --end[VAL]; }
char buf[256] = {0}, *key = buf;
if( end[TAG] - cut[TAG] ) key += sprintf(key, "%.*s.", (int)(end[TAG] - cut[TAG]), cut[TAG] );
if( end[KEY] - cut[KEY] ) key += sprintf(key, "%.*s", (int)(end[KEY] - cut[KEY]), cut[KEY] );
if( end[SUB] - cut[SUB] ) key += sprintf(key, ".%.*s", (int)(end[SUB] - cut[SUB]), cut[SUB] );
int reqlen = (key - buf) + 1 + (end[VAL] - cut[VAL]) + 1 + 1;
if( (reqlen + maplen) >= mapcap ) map = REALLOC( map, mapcap += reqlen + 512 );
sprintf( map + maplen, "%.*s%c%.*s%c%c", (int)(key - buf), buf, 0, (int)(end[VAL] - cut[VAL]), cut[VAL], 0, 0 );
maplen += reqlen - 1;
}
}
return map;
}
// @todo: evaluate alt api
// int count = ini_count(filename);
// char *key = ini_key(filename, id);
// char *val = ini_val(filename, id);
void ini_destroy(ini_t x) {
for each_map(x, char*, k, char*, v) {
FREE(k);
FREE(v);
}
map_free(x);
}
ini_t ini_from_mem(const char *data) {
if( !data || !data[0] ) return 0;
char *kv = ini_parse(data);
if( !kv ) return 0;
ini_t map = 0;
map_init(map, less_str, hash_str);
for( char *iter = kv; iter[0]; ) {
char *key = iter; while( *iter++ );
char *val = iter; while( *iter++ );
char **found = map_find(map, key);
if( !found ) map_insert(map, STRDUP(key), STRDUP(val));
assert( map_find(map,key) );
}
FREE( kv );
return map;
}
ini_t ini(const char *filename) {
return ini_from_mem(file_read(filename));
}
bool ini_write(const char *filename, const char *section, const char *key, const char *value) {
// this is a little hacky {
char *data = file_read(filename);
if( data && data[0] ) {
char *begin = strrchr(data, '[');
char *end = strrchr(data, ']');
if( begin && end && begin < end ) {
char *last_section = va("%.*s", (int)(end - begin - 1), begin + 1);
if( !strcmpi(last_section, section) ) section = 0;
}
}
// }
char *s = va("%s%s=%s\r\n", section ? va("[%s]\r\n", section) : "", key, value);
return file_append(filename, s, strlen(s));
}
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