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libretro: add savestate support

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This commit is contained in:
notaz 2013-07-31 02:18:34 +03:00
parent 989ba52a01
commit 86b38dc46d
3 changed files with 145 additions and 15 deletions
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38
pico/state.c
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@ -11,15 +11,11 @@
#include "../cpu/sh2/sh2.h"
#include "sound/ym2612.h"
#include "state.h"
// sn76496
extern int *sn76496_regs;
typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);
typedef size_t (areaeof)(void *file);
typedef int (areaseek)(void *file, long offset, int whence);
typedef int (areaclose)(void *file);
static arearw *areaRead;
static arearw *areaWrite;
static areaeof *areaEof;
@ -594,15 +590,10 @@ readend:
return 0;
}
int PicoState(const char *fname, int is_save)
static int pico_state_internal(void *afile, int is_save)
{
void *afile = NULL;
int ret;
afile = open_save_file(fname, is_save);
if (afile == NULL)
return -1;
if (is_save)
ret = state_save(afile);
else {
@ -617,10 +608,35 @@ int PicoState(const char *fname, int is_save)
Pico.m.dirtyPal = 1;
}
return ret;
}
int PicoState(const char *fname, int is_save)
{
void *afile = NULL;
int ret;
afile = open_save_file(fname, is_save);
if (afile == NULL)
return -1;
ret = pico_state_internal(afile, is_save);
areaClose(afile);
return ret;
}
int PicoStateFP(void *afile, int is_save,
arearw *read, arearw *write, areaeof *eof, areaseek *seek)
{
areaRead = read;
areaWrite = write;
areaEof = eof;
areaSeek = seek;
areaClose = NULL;
return pico_state_internal(afile, is_save);
}
int PicoStateLoadGfx(const char *fname)
{
void *afile;