Pecus/libretro-atari800
1
0
Fork 0
mirror of https://github.com/Pecusx/libretro-atari800.git synced 2026-05-20 22:33:22 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #40 from marianob85/retroarch_states

Browse Source 
Load/save atari state from RetroArch
This commit is contained in:
Twinaphex
2020-02-06 23:00:01 +01:00
committed by GitHub
parent 1f109c8b7d 41ed217ca1
commit f9bf53b864
3 changed files with 135 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files
atari800/src/statesav.c
+103 -46
View File
@@ -73,23 +73,7 @@
#define SAVE_VERSION_NUMBER 8 /* Last changed after Atari800 3.1.0 */
#if defined(MEMCOMPR)
static gzFile *mem_open(const char *name, const char *mode);
static int mem_close(gzFile *stream);
static size_t mem_read(void *buf, size_t len, gzFile *stream);
static size_t mem_write(const void *buf, size_t len, gzFile *stream);
#define GZOPEN(X, Y) mem_open(X, Y)
#define GZCLOSE(X) mem_close(X)
#define GZREAD(X, Y, Z) mem_read(Y, Z, X)
#define GZWRITE(X, Y, Z) mem_write(Y, Z, X)
#undef GZERROR
#elif defined(HAVE_LIBZ) /* above MEMCOMPR, below HAVE_LIBZ */
#define GZOPEN(X, Y) gzopen(X, Y)
#define GZCLOSE(X) gzclose(X)
#define GZREAD(X, Y, Z) gzread(X, Y, Z)
#define GZWRITE(X, Y, Z) gzwrite(X, (const voidp) Y, Z)
#define GZERROR(X, Y) gzerror(X, Y)
#else
#define GZOPEN(X, Y) fopen(X, Y)
#define GZCLOSE(X) fclose(X)
#define GZREAD(X, Y, Z) fread(Y, Z, 1, X)
@@ -97,11 +81,12 @@ static size_t mem_write(const void *buf, size_t len, gzFile *stream);
#undef GZERROR
#define gzFile FILE *
#define Z_OK 0
#endif
static gzFile StateFile = NULL;
static int nFileError = Z_OK;
static void GetGZErrorText(void)
{
#ifdef GZERROR
@@ -330,8 +315,6 @@ void StateSav_ReadFNAME(char *filename)
int StateSav_SaveAtariState(const char *filename, const char *mode, UBYTE SaveVerbose)
{
UBYTE StateVersion = SAVE_VERSION_NUMBER;
if (StateFile != NULL) {
GZCLOSE(StateFile);
StateFile = NULL;
@@ -351,6 +334,56 @@ int StateSav_SaveAtariState(const char *filename, const char *mode, UBYTE SaveVe
return FALSE;
}
if( StateSav_SaveAtariStateInternal(SaveVerbose) == FALSE )
return FALSE;
if (GZCLOSE(StateFile) != 0) {
StateFile = NULL;
return FALSE;
}
StateFile = NULL;
if (nFileError != Z_OK)
return FALSE;
return TRUE;
}
int StateSav_SaveAtariStateMem(char **data ,size_t *size)
{
nFileError = Z_OK;
StateFile = open_memstream(data, size);
if (StateFile == NULL) {
GetGZErrorText();
return FALSE;
}
if (GZWRITE(StateFile, "ATARI800", 8) == 0) {
GetGZErrorText();
GZCLOSE(StateFile);
StateFile = NULL;
return FALSE;
}
StateSav_SaveAtariStateInternal(TRUE);
if (GZCLOSE(StateFile) != 0) {
StateFile = NULL;
return FALSE;
}
StateFile = NULL;
if (nFileError != Z_OK)
return FALSE;
return TRUE;
}
int StateSav_SaveAtariStateInternal(UBYTE SaveVerbose)
{
UBYTE StateVersion = SAVE_VERSION_NUMBER;
StateSav_SaveUBYTE(&StateVersion, 1);
StateSav_SaveUBYTE(&SaveVerbose, 1);
/* The order here is important. Atari800_StateSave must be first because it saves the machine type, and
@@ -400,24 +433,11 @@ int StateSav_SaveAtariState(const char *filename, const char *mode, UBYTE SaveVe
DCStateSave();
#endif
if (GZCLOSE(StateFile) != 0) {
StateFile = NULL;
return FALSE;
}
StateFile = NULL;
if (nFileError != Z_OK)
return FALSE;
return TRUE;
}
int StateSav_ReadAtariState(const char *filename, const char *mode)
{
char header_string[8];
UBYTE StateVersion = 0; /* The version of the save file */
UBYTE SaveVerbose = 0; /* Verbose mode means save basic, OS if patched */
if (StateFile != NULL) {
GZCLOSE(StateFile);
StateFile = NULL;
@@ -431,6 +451,51 @@ int StateSav_ReadAtariState(const char *filename, const char *mode)
return FALSE;
}
if( StateSav_ReadAtariStateInternal() == FALSE )
return FALSE;
GZCLOSE(StateFile);
StateFile = NULL;
if (nFileError != Z_OK)
return FALSE;
return TRUE;
}
int StateSav_ReadAtariStateMem(const char* data, size_t size)
{
if (StateFile != NULL) {
GZCLOSE(StateFile);
StateFile = NULL;
}
nFileError = Z_OK;
StateFile = fmemopen((char* )data, size, "r");
if (StateFile == NULL) {
return FALSE;
}
if (StateSav_ReadAtariStateInternal() == FALSE)
return FALSE;
GZCLOSE(StateFile);
StateFile = NULL;
if (nFileError != Z_OK)
return FALSE;
return TRUE;
}
int StateSav_ReadAtariStateInternal()
{
char header_string[8];
UBYTE StateVersion = 0; /* The version of the save file */
UBYTE SaveVerbose = 0; /* Verbose mode means save basic, OS if patched */
if (GZREAD(StateFile, header_string, 8) == 0) {
GetGZErrorText();
GZCLOSE(StateFile);
@@ -445,7 +510,7 @@ int StateSav_ReadAtariState(const char *filename, const char *mode)
}
if (GZREAD(StateFile, &StateVersion, 1) == 0
|| GZREAD(StateFile, &SaveVerbose, 1) == 0) {
|| GZREAD(StateFile, &SaveVerbose, 1) == 0) {
Log_print("Failed read from Atari state file.");
GetGZErrorText();
GZCLOSE(StateFile);
@@ -475,7 +540,7 @@ int StateSav_ReadAtariState(const char *filename, const char *mode)
XEP80_StateRead();
#else
int local_xep80_enabled;
StateSav_ReadINT(&local_xep80_enabled,1);
StateSav_ReadINT(&local_xep80_enabled, 1);
if (local_xep80_enabled) {
Log_print("Cannot read this state file because this version does not support XEP80.");
GZCLOSE(StateFile);
@@ -489,7 +554,7 @@ int StateSav_ReadAtariState(const char *filename, const char *mode)
#else
{
int local_mio_enabled;
StateSav_ReadINT(&local_mio_enabled,1);
StateSav_ReadINT(&local_mio_enabled, 1);
if (local_mio_enabled) {
Log_print("Cannot read this state file because this version does not support MIO.");
GZCLOSE(StateFile);
@@ -503,7 +568,7 @@ int StateSav_ReadAtariState(const char *filename, const char *mode)
#else
{
int local_bb_enabled;
StateSav_ReadINT(&local_bb_enabled,1);
StateSav_ReadINT(&local_bb_enabled, 1);
if (local_bb_enabled) {
Log_print("Cannot read this state file because this version does not support the Black Box.");
GZCLOSE(StateFile);
@@ -517,7 +582,7 @@ int StateSav_ReadAtariState(const char *filename, const char *mode)
#else
{
int local_xld_enabled;
StateSav_ReadINT(&local_xld_enabled,1);
StateSav_ReadINT(&local_xld_enabled, 1);
if (local_xld_enabled) {
Log_print("Cannot read this state file because this version does not support the 1400XL/1450XLD.");
GZCLOSE(StateFile);
@@ -530,17 +595,9 @@ int StateSav_ReadAtariState(const char *filename, const char *mode)
#ifdef DREAMCAST
DCStateRead();
#endif
GZCLOSE(StateFile);
StateFile = NULL;
if (nFileError != Z_OK)
return FALSE;
return TRUE;
}
/* hack to compress in memory before writing
* - for DREAMCAST only
* - 2 reasons for this:
atari800/src/statesav.h
+6
View File
@@ -6,6 +6,12 @@
int StateSav_SaveAtariState(const char *filename, const char *mode, UBYTE SaveVerbose);
int StateSav_ReadAtariState(const char *filename, const char *mode);
int StateSav_SaveAtariStateMem(char **data ,size_t *size);
int StateSav_ReadAtariStateMem(const char *data , size_t size);
int StateSav_SaveAtariStateInternal(UBYTE SaveVerbose);
int StateSav_ReadAtariStateInternal();
void StateSav_SaveUBYTE(const UBYTE *data, int num);
void StateSav_SaveUWORD(const UWORD *data, int num);
void StateSav_SaveINT(const int *data, int num);
libretro/libretro-core.c
+26 -3
View File
@@ -48,6 +48,8 @@ extern void texture_uninit(void);
extern void Emu_init();
extern void Emu_uninit();
extern void input_gui(void);
extern int StateSav_SaveAtariStateMem(char** data, size_t* size);
extern int StateSav_ReadAtariStateMem(const char* data, size_t size);
const char *retro_save_directory;
const char *retro_system_directory;
@@ -736,17 +738,38 @@ bool retro_load_game_special(unsigned type, const struct retro_game_info *info,
size_t retro_serialize_size(void)
{
return 0;
char* buf = NULL;
size_t size = 0;
bool ret = StateSav_SaveAtariStateMem(&buf, &size) == TRUE;
free(buf);
if (!ret || size == 0)
return 0;
return size;
}
bool retro_serialize(void *data_, size_t size)
{
return false;
char* buf = NULL;
size_t serializeSize = 0;
bool ret = StateSav_SaveAtariStateMem(&buf, &serializeSize) == TRUE;
if (!ret || serializeSize != size)
{
free(buf);
return false;
}
memcpy(data_, buf, size);
free(buf);
return true;
}
bool retro_unserialize(const void *data_, size_t size)
{
return false;
return StateSav_ReadAtariStateMem(data_, size) == TRUE;
}
void *retro_get_memory_data(unsigned id)