26 #define _LARGEFILE64_SOURCE 29 #include "../SDL_internal.h" 31 #if defined(__WIN32__) 32 #include "../core/windows/SDL_windows.h" 55 #include "../core/android/SDL_android.h" 60 #include "nacl_io/nacl_io.h" 67 #ifndef INVALID_SET_FILE_POINTER 68 #define INVALID_SET_FILE_POINTER 0xFFFFFFFF 71 #define READAHEAD_BUFFER_SIZE 1024 78 DWORD r_right, w_right;
79 DWORD must_exist, truncate;
100 || must_exist) ? GENERIC_READ : 0;
103 || truncate) ? GENERIC_WRITE : 0;
105 if (!r_right && !w_right)
115 SetErrorMode(SEM_NOOPENFILEERRORBOX | SEM_FAILCRITICALERRORS);
119 h = CreateFile(tstr, (w_right | r_right),
120 (w_right) ? 0 : FILE_SHARE_READ,
NULL,
121 (must_exist | truncate | a_mode),
122 FILE_ATTRIBUTE_NORMAL,
NULL);
127 SetErrorMode(old_error_mode);
129 if (h == INVALID_HANDLE_VALUE) {
147 return SDL_SetError(
"windows_file_size: invalid context/file not opened");
154 return size.QuadPart;
161 LARGE_INTEGER windowsoffset;
164 return SDL_SetError(
"windows_file_seek: invalid context/file not opened");
175 windowswhence = FILE_BEGIN;
178 windowswhence = FILE_CURRENT;
181 windowswhence = FILE_END;
184 return SDL_SetError(
"windows_file_seek: Unknown value for 'whence'");
187 windowsoffset.QuadPart =
offset;
188 if (!SetFilePointerEx(context->
hidden.
windowsio.h, windowsoffset, &windowsoffset, windowswhence)) {
191 return windowsoffset.QuadPart;
195 windows_file_read(
SDL_RWops * context,
void *ptr,
size_t size,
size_t maxnum)
198 size_t total_read = 0;
202 total_need =
size * maxnum;
217 if (read_ahead == total_need) {
220 ptr = (
char *) ptr + read_ahead;
221 total_need -= read_ahead;
222 total_read += read_ahead;
225 if (total_need < READAHEAD_BUFFER_SIZE) {
228 READAHEAD_BUFFER_SIZE, &byte_read,
NULL)) {
232 read_ahead =
SDL_min(total_need, (
int) byte_read);
236 total_read += read_ahead;
243 total_read += byte_read;
245 return (total_read /
size);
249 windows_file_write(
SDL_RWops * context,
const void *ptr,
size_t size,
260 || total_bytes <= 0 || !
size)
273 INVALID_SET_FILE_POINTER) {
285 nwritten = byte_written /
size;
309 #define fopen fopen64 312 #define fseek_off_t off64_t 313 #define fseek fseeko64 314 #define ftell ftello64 315 #elif defined(HAVE_FSEEKO) 316 #if defined(OFF_MIN) && defined(OFF_MAX) 317 #define FSEEK_OFF_MIN OFF_MIN 318 #define FSEEK_OFF_MAX OFF_MAX 319 #elif defined(HAVE_LIMITS_H) 326 #define FSEEK_OFF_MAX (((((off_t)1 << (sizeof(off_t) * CHAR_BIT - 2)) - 1) << 1) + 1) 327 #define FSEEK_OFF_MIN (-(FSEEK_OFF_MAX) - 1) 329 #define fseek_off_t off_t 332 #elif defined(HAVE__FSEEKI64) 333 #define fseek_off_t __int64 334 #define fseek _fseeki64 335 #define ftell _ftelli64 338 #define FSEEK_OFF_MIN LONG_MIN 339 #define FSEEK_OFF_MAX LONG_MAX 341 #define fseek_off_t long 364 #if defined(FSEEK_OFF_MIN) && defined(FSEEK_OFF_MAX) 381 stdio_read(
SDL_RWops * context,
void *ptr,
size_t size,
size_t maxnum)
386 if (nread == 0 && ferror(context->
hidden.
stdio.fp)) {
398 if (nwrote == 0 && ferror(context->
hidden.
stdio.fp)) {
447 if (newpos < context->hidden.mem.base) {
461 size_t mem_available;
463 total_bytes = (maxnum *
size);
464 if ((maxnum <= 0) || (size <= 0)
465 || ((total_bytes / maxnum) != (
size_t) size)) {
470 if (total_bytes > mem_available) {
471 total_bytes = mem_available;
477 return (total_bytes / size);
514 if (!file || !*file || !mode || !*mode) {
515 SDL_SetError(
"SDL_RWFromFile(): No file or no mode specified");
518 #if defined(__ANDROID__) 522 FILE *fp = fopen(file, mode);
535 fp = fopen(path, mode);
559 #elif defined(__WIN32__) 563 if (windows_file_open(rwops, file, mode) < 0) {
567 rwops->
size = windows_file_size;
568 rwops->
seek = windows_file_seek;
569 rwops->
read = windows_file_read;
570 rwops->
write = windows_file_write;
571 rwops->
close = windows_file_close;
577 FILE *fp = SDL_OpenFPFromBundleOrFallback(file, mode);
580 fopen_s(&fp, file, mode);
582 FILE *fp = fopen(file, mode);
605 rwops->
size = stdio_size;
606 rwops->
seek = stdio_seek;
607 rwops->
read = stdio_read;
608 rwops->
write = stdio_write;
609 rwops->
close = stdio_close;
705 const int FILE_CHUNK_SIZE = 1024;
707 size_t size_read, size_total;
717 size = FILE_CHUNK_SIZE;
723 if ((((
Sint64)size_total) + FILE_CHUNK_SIZE) > size) {
724 size = (size_total + FILE_CHUNK_SIZE);
735 size_read =
SDL_RWread(src, (
char *)data+size_total, 1, (
size_t)(size-size_total));
736 if (size_read == 0) {
739 size_total += size_read;
743 *datasize = size_total;
745 ((
char *)data)[size_total] =
'\0';
748 if (freesrc && src) {
822 return SDL_RWwrite(dst, &value,
sizeof (value), 1);
829 return SDL_RWwrite(dst, &swapped,
sizeof (swapped), 1);
836 return SDL_RWwrite(dst, &swapped,
sizeof (swapped), 1);
843 return SDL_RWwrite(dst, &swapped,
sizeof (swapped), 1);
850 return SDL_RWwrite(dst, &swapped,
sizeof (swapped), 1);
857 return SDL_RWwrite(dst, &swapped,
sizeof (swapped), 1);
864 return SDL_RWwrite(dst, &swapped,
sizeof (swapped), 1);
int Android_JNI_FileClose(SDL_RWops *ctx)
#define WIN_UTF8ToString(S)
Uint32 SDL_ReadBE32(SDL_RWops *src)
void SDL_FreeRW(SDL_RWops *area)
#define SDL_RWwrite(ctx, ptr, size, n)
GLfloat GLfloat GLfloat GLfloat h
#define SDL_RWOPS_WINFILE
SDL_RWops * SDL_RWFromConstMem(const void *mem, int size)
static screen_context_t context
#define SDL_RWread(ctx, ptr, size, n)
size_t(* write)(struct SDL_RWops *context, const void *ptr, size_t size, size_t num)
#define SDL_RWOPS_UNKNOWN
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
#define SDL_InvalidParamError(param)
static size_t mem_writeconst(SDL_RWops *context, const void *ptr, size_t size, size_t num)
size_t SDL_WriteLE32(SDL_RWops *dst, Uint32 value)
static Sint64 mem_size(SDL_RWops *context)
int Android_JNI_FileOpen(SDL_RWops *ctx, const char *fileName, const char *mode)
struct SDL_RWops::@10::@11 windowsio
struct SDL_RWops::@10::@13 mem
Uint64 SDL_ReadLE64(SDL_RWops *src)
struct SDL_RWops::@10::@12 stdio
Sint64(* seek)(struct SDL_RWops *context, Sint64 offset, int whence)
#define SDL_RWseek(ctx, offset, whence)
static size_t mem_write(SDL_RWops *context, const void *ptr, size_t size, size_t num)
Uint16 SDL_ReadBE16(SDL_RWops *src)
SDL_RWops * SDL_AllocRW(void)
size_t SDL_WriteBE16(SDL_RWops *dst, Uint16 value)
void * SDL_LoadFile_RW(SDL_RWops *src, size_t *datasize, int freesrc)
size_t SDL_WriteBE64(SDL_RWops *dst, Uint64 value)
SDL_RWops * SDL_RWFromFile(const char *file, const char *mode)
static int mem_close(SDL_RWops *context)
#define SDL_stack_alloc(type, count)
int(* close)(struct SDL_RWops *context)
SDL_RWops * SDL_RWFromFP(void *fp, SDL_bool autoclose)
size_t Android_JNI_FileWrite(SDL_RWops *ctx, const void *buffer, size_t size, size_t num)
size_t SDL_WriteBE32(SDL_RWops *dst, Uint32 value)
GLsizei const GLfloat * value
static Sint64 mem_seek(SDL_RWops *context, Sint64 offset, int whence)
Uint32 SDL_ReadLE32(SDL_RWops *src)
size_t SDL_WriteLE64(SDL_RWops *dst, Uint64 value)
Sint64(* size)(struct SDL_RWops *context)
#define SDL_OutOfMemory()
SDL_RWops * SDL_RWFromMem(void *mem, int size)
int WIN_SetError(const char *prefix)
union SDL_RWops::@10 hidden
#define SDL_RWOPS_STDFILE
size_t Android_JNI_FileRead(SDL_RWops *ctx, void *buffer, size_t size, size_t maxnum)
#define SDL_RWOPS_MEMORY_RO
size_t SDL_WriteU8(SDL_RWops *dst, Uint8 value)
size_t(* read)(struct SDL_RWops *context, void *ptr, size_t size, size_t maxnum)
Uint8 SDL_ReadU8(SDL_RWops *src)
GLsizei const GLchar *const * path
Uint64 SDL_ReadBE64(SDL_RWops *src)
#define SDL_stack_free(data)
size_t SDL_WriteLE16(SDL_RWops *dst, Uint16 value)
static size_t mem_read(SDL_RWops *context, void *ptr, size_t size, size_t maxnum)
#define SDL_AndroidGetInternalStoragePath
Sint64 Android_JNI_FileSeek(SDL_RWops *ctx, Sint64 offset, int whence)
Uint16 SDL_ReadLE16(SDL_RWops *src)
Sint64 Android_JNI_FileSize(SDL_RWops *ctx)
#define SDL_RWOPS_JNIFILE