26#define _LARGEFILE64_SOURCE
29#include "../SDL_internal.h"
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;
85 context->hidden.windowsio.h = INVALID_HANDLE_VALUE;
87 context->hidden.windowsio.buffer.size = 0;
88 context->hidden.windowsio.buffer.left = 0;
100 || must_exist) ? GENERIC_READ : 0;
103 || truncate) ? GENERIC_WRITE : 0;
105 if (!r_right && !w_right)
108 context->hidden.windowsio.buffer.data =
110 if (!
context->hidden.windowsio.buffer.data) {
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) {
146 if (!
context ||
context->hidden.windowsio.h == INVALID_HANDLE_VALUE) {
147 return SDL_SetError(
"windows_file_size: invalid context/file not opened");
150 if (!GetFileSizeEx(
context->hidden.windowsio.h, &
size)) {
154 return size.QuadPart;
161 LARGE_INTEGER windowsoffset;
163 if (!
context ||
context->hidden.windowsio.h == INVALID_HANDLE_VALUE) {
164 return SDL_SetError(
"windows_file_seek: invalid context/file not opened");
171 context->hidden.windowsio.buffer.left = 0;
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;
198 size_t total_read = 0;
202 total_need =
size * maxnum;
204 if (!
context ||
context->hidden.windowsio.h == INVALID_HANDLE_VALUE
208 if (
context->hidden.windowsio.buffer.left > 0) {
209 void *
data = (
char *)
context->hidden.windowsio.buffer.data +
210 context->hidden.windowsio.buffer.size -
211 context->hidden.windowsio.buffer.left;
215 context->hidden.windowsio.buffer.left -= read_ahead;
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) {
227 (
context->hidden.windowsio.h,
context->hidden.windowsio.buffer.data,
228 READAHEAD_BUFFER_SIZE, &byte_read,
NULL)) {
232 read_ahead =
SDL_min(total_need, (
int) byte_read);
234 context->hidden.windowsio.buffer.size = byte_read;
235 context->hidden.windowsio.buffer.left = byte_read - read_ahead;
236 total_read += read_ahead;
239 (
context->hidden.windowsio.h, ptr, (DWORD)total_need, &byte_read,
NULL)) {
243 total_read += byte_read;
245 return (total_read /
size);
259 if (!
context ||
context->hidden.windowsio.h == INVALID_HANDLE_VALUE
260 || total_bytes <= 0 || !
size)
263 if (
context->hidden.windowsio.buffer.left) {
264 SetFilePointer(
context->hidden.windowsio.h,
265 -(LONG)
context->hidden.windowsio.buffer.left,
NULL,
267 context->hidden.windowsio.buffer.left = 0;
271 if (
context->hidden.windowsio.append) {
272 if (SetFilePointer(
context->hidden.windowsio.h, 0L,
NULL, FILE_END) ==
273 INVALID_SET_FILE_POINTER) {
280 (
context->hidden.windowsio.h, ptr, (DWORD)total_bytes, &byte_written,
NULL)) {
285 nwritten = byte_written /
size;
294 if (
context->hidden.windowsio.h != INVALID_HANDLE_VALUE) {
295 CloseHandle(
context->hidden.windowsio.h);
296 context->hidden.windowsio.h = INVALID_HANDLE_VALUE;
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)
370 if (fseek(
context->hidden.stdio.fp, (fseek_off_t)
offset, whence) == 0) {
385 nread = fread(ptr,
size, maxnum,
context->hidden.stdio.fp);
386 if (nread == 0 && ferror(
context->hidden.stdio.fp)) {
398 if (nwrote == 0 && ferror(
context->hidden.stdio.fp)) {
409 if (
context->hidden.stdio.autoclose) {
411 if (fclose(
context->hidden.stdio.fp) != 0) {
447 if (newpos < context->hidden.mem.base) {
448 newpos =
context->hidden.mem.base;
450 if (newpos >
context->hidden.mem.stop) {
451 newpos =
context->hidden.mem.stop;
453 context->hidden.mem.here = newpos;
461 size_t mem_available;
463 total_bytes = (maxnum *
size);
464 if ((maxnum <= 0) || (
size <= 0)
465 || ((total_bytes / maxnum) != (
size_t)
size)) {
469 mem_available = (
context->hidden.mem.stop -
context->hidden.mem.here);
470 if (total_bytes > mem_available) {
471 total_bytes = mem_available;
475 context->hidden.mem.here += total_bytes;
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);
560#elif defined(__WIN32__)
564 if (windows_file_open(rwops, file,
mode) < 0) {
568 rwops->
size = windows_file_size;
569 rwops->
seek = windows_file_seek;
570 rwops->
read = windows_file_read;
571 rwops->
write = windows_file_write;
572 rwops->
close = windows_file_close;
578 FILE *fp = SDL_OpenFPFromBundleOrFallback(file,
mode);
581 fopen_s(&fp, file,
mode);
583 FILE *fp = fopen(file,
mode);
606 rwops->
size = stdio_size;
607 rwops->
seek = stdio_seek;
608 rwops->
read = stdio_read;
609 rwops->
write = stdio_write;
610 rwops->
close = stdio_close;
706 const int FILE_CHUNK_SIZE = 1024;
708 size_t size_read, size_total;
718 size = FILE_CHUNK_SIZE;
724 if ((((
Sint64)size_total) + FILE_CHUNK_SIZE) >
size) {
725 size = (size_total + FILE_CHUNK_SIZE);
737 if (size_read == 0) {
740 size_total += size_read;
744 *datasize = size_total;
746 ((
char *)
data)[size_total] =
'\0';
749 if (freesrc &&
src) {
size_t Android_JNI_FileRead(SDL_RWops *ctx, void *buffer, size_t size, size_t maxnum)
int Android_JNI_FileOpen(SDL_RWops *ctx, const char *fileName, const char *mode)
size_t Android_JNI_FileWrite(SDL_RWops *ctx, const void *buffer, size_t size, size_t num)
Sint64 Android_JNI_FileSize(SDL_RWops *ctx)
Sint64 Android_JNI_FileSeek(SDL_RWops *ctx, Sint64 offset, int whence)
int Android_JNI_FileClose(SDL_RWops *ctx)
#define SDL_AndroidGetInternalStoragePath
#define SDL_OutOfMemory()
#define SDL_InvalidParamError(param)
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
GLsizei const GLchar *const * path
GLsizei const GLfloat * value
GLfloat GLfloat GLfloat GLfloat h
static Sint64 mem_size(SDL_RWops *context)
size_t SDL_WriteBE64(SDL_RWops *dst, Uint64 value)
static size_t mem_read(SDL_RWops *context, void *ptr, size_t size, size_t maxnum)
Uint16 SDL_ReadLE16(SDL_RWops *src)
Uint32 SDL_ReadLE32(SDL_RWops *src)
size_t SDL_RWread(SDL_RWops *context, void *ptr, size_t size, size_t maxnum)
Sint64 SDL_RWsize(SDL_RWops *context)
size_t SDL_WriteLE32(SDL_RWops *dst, Uint32 value)
size_t SDL_WriteLE16(SDL_RWops *dst, Uint16 value)
static size_t mem_writeconst(SDL_RWops *context, const void *ptr, size_t size, size_t num)
Uint16 SDL_ReadBE16(SDL_RWops *src)
static size_t mem_write(SDL_RWops *context, const void *ptr, size_t size, size_t num)
SDL_RWops * SDL_RWFromFile(const char *file, const char *mode)
size_t SDL_WriteBE16(SDL_RWops *dst, Uint16 value)
size_t SDL_WriteBE32(SDL_RWops *dst, Uint32 value)
Sint64 SDL_RWseek(SDL_RWops *context, Sint64 offset, int whence)
size_t SDL_RWwrite(SDL_RWops *context, const void *ptr, size_t size, size_t num)
SDL_RWops * SDL_RWFromFP(void *fp, SDL_bool autoclose)
SDL_RWops * SDL_RWFromMem(void *mem, int size)
Sint64 SDL_RWtell(SDL_RWops *context)
static int mem_close(SDL_RWops *context)
void SDL_FreeRW(SDL_RWops *area)
void * SDL_LoadFile_RW(SDL_RWops *src, size_t *datasize, int freesrc)
Uint64 SDL_ReadLE64(SDL_RWops *src)
SDL_RWops * SDL_AllocRW(void)
Uint64 SDL_ReadBE64(SDL_RWops *src)
size_t SDL_WriteU8(SDL_RWops *dst, Uint8 value)
Uint32 SDL_ReadBE32(SDL_RWops *src)
int SDL_RWclose(SDL_RWops *context)
Uint8 SDL_ReadU8(SDL_RWops *src)
SDL_RWops * SDL_RWFromConstMem(const void *mem, int size)
size_t SDL_WriteLE64(SDL_RWops *dst, Uint64 value)
void * SDL_LoadFile(const char *file, size_t *datasize)
static Sint64 mem_seek(SDL_RWops *context, Sint64 offset, int whence)
#define SDL_RWOPS_STDFILE
#define SDL_RWOPS_MEMORY_RO
#define SDL_RWOPS_UNKNOWN
#define SDL_RWOPS_JNIFILE
#define SDL_RWOPS_WINFILE
#define SDL_stack_alloc(type, count)
#define SDL_stack_free(data)
#define WIN_UTF8ToString(S)
int WIN_SetError(const char *prefix)
size_t(* write)(struct SDL_RWops *context, const void *ptr, size_t size, size_t num)
size_t(* read)(struct SDL_RWops *context, void *ptr, size_t size, size_t maxnum)
struct SDL_RWops::@9::@11 stdio
int(* close)(struct SDL_RWops *context)
Sint64(* seek)(struct SDL_RWops *context, Sint64 offset, int whence)
union SDL_RWops::@9 hidden
Sint64(* size)(struct SDL_RWops *context)
struct SDL_RWops::@9::@12 mem
static screen_context_t context