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Add intfstream_seek

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This commit is contained in:
twinaphex 2016-04-07 02:21:43 +02:00
parent 67cf1153c6
commit f51e0f62e5
3 changed files with 27 additions and 4 deletions
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3
libretro-common/include/streams/interface_stream.h
View File

@ -67,4 +67,7 @@ char *intfstream_gets(intfstream_internal_t *intf,
int intfstream_getc(intfstream_internal_t *intf);
int intfstream_seek(intfstream_internal_t *intf,
int offset, int whence);
#endif

25
libretro-common/streams/interface_stream.c
View File

@ -67,7 +67,8 @@ bool intfstream_resize(intfstream_internal_t *intf, intfstream_info_t *info)
return true;
}
bool intfstream_open(intfstream_internal_t *intf, const char *path, unsigned mode, ssize_t len)
bool intfstream_open(intfstream_internal_t *intf, const char *path,
unsigned mode, ssize_t len)
{
if (!intf)
return false;
@ -120,6 +121,22 @@ error:
return NULL;
}
int intfstream_seek(intfstream_internal_t *intf, int offset, int whence)
{
if (!intf)
return -1;
switch (intf->type)
{
case INTFSTREAM_FILE:
return filestream_seek(intf->file.fp, offset, whence);
case INTFSTREAM_MEMORY:
return memstream_seek(intf->memory.fp, offset, whence);
}
return -1;
}
ssize_t intfstream_read(intfstream_internal_t *intf, void *s, size_t len)
{
if (!intf)
@ -136,7 +153,8 @@ ssize_t intfstream_read(intfstream_internal_t *intf, void *s, size_t len)
return 0;
}
ssize_t intfstream_write(intfstream_internal_t *intf, const void *s, size_t len)
ssize_t intfstream_write(intfstream_internal_t *intf,
const void *s, size_t len)
{
if (!intf)
return 0;
@ -152,7 +170,8 @@ ssize_t intfstream_write(intfstream_internal_t *intf, const void *s, size_t len)
return 0;
}
char *intfstream_gets(intfstream_internal_t *intf, char *buffer, size_t len)
char *intfstream_gets(intfstream_internal_t *intf,
char *buffer, size_t len)
{
if (!intf)
return NULL;

3
libretro-common/streams/memory_stream.c
View File

@ -48,7 +48,8 @@ size_t memstream_get_last_size(void)
return last_file_size;
}
static void memstream_init(memstream_t *stream, uint8_t *buffer, size_t max_size)
static void memstream_init(memstream_t *stream,
uint8_t *buffer, size_t max_size)
{
if (!stream)
return;