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starting SDL port, refactoring

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This commit is contained in:
notaz 2013-06-23 02:28:52 +03:00
parent 1889fe877c
commit 636d5f257c
12 changed files with 393 additions and 80 deletions
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64
platform/common/emu.c
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@ -47,8 +47,7 @@ int engineState = PGS_Menu;
/* tmp buff to reduce stack usage for plats with small stack */
static char static_buff[512];
/* TODO: len checking */
char rom_fname_reload[512];
const char *rom_fname_reload;
char rom_fname_loaded[512];
int rom_loaded = 0;
int reset_timing = 0;
@ -147,7 +146,7 @@ static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "Se
static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };
static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
static int find_bios(int region, char **bios_file)
static int find_bios(int region, const char **bios_file)
{
int i, count;
const char * const *files;
@ -484,21 +483,28 @@ static void system_announce(void)
emu_status_msg("%s %s / %dFPS%s", tv_standard, sys_name, fps, extra);
}
// note: this function might mangle rom_fname
// XXX: portions of this code should move to pico/
int emu_reload_rom(char *rom_fname)
int emu_reload_rom(const char *rom_fname_in)
{
unsigned int rom_size = 0;
char *used_rom_name = rom_fname;
const char *used_rom_name = NULL;
char *rom_fname = NULL;
unsigned char *rom_data = NULL;
char ext[5];
pm_file *rom = NULL;
int cd_state = CIT_NOT_CD;
int ret, media_type, cd_region;
int cfg_loaded = 0, bad_rom = 0;
int menu_romload_started = 0;
int retval = 0;
lprintf("emu_ReloadRom(%s)\n", rom_fname);
lprintf("emu_ReloadRom(%s)\n", rom_fname_in);
rom_fname = strdup(rom_fname_in);
if (rom_fname == NULL)
return 0;
used_rom_name = rom_fname;
get_ext(rom_fname, ext);
// early cleanup
@ -515,7 +521,7 @@ int emu_reload_rom(char *rom_fname)
FILE *movie_file = fopen(rom_fname, "rb");
if (!movie_file) {
menu_update_msg("Failed to open movie.");
return 0;
goto out;
}
fseek(movie_file, 0, SEEK_END);
movie_size = ftell(movie_file);
@ -523,24 +529,24 @@ int emu_reload_rom(char *rom_fname)
if (movie_size < 64+3) {
menu_update_msg("Invalid GMV file.");
fclose(movie_file);
return 0;
goto out;
}
movie_data = malloc(movie_size);
if (movie_data == NULL) {
menu_update_msg("low memory.");
fclose(movie_file);
return 0;
goto out;
}
dummy = fread(movie_data, 1, movie_size, movie_file);
fclose(movie_file);
if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
menu_update_msg("Invalid GMV file.");
return 0;
goto out;
}
dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
if (!dummy) {
menu_update_msg("Could't find a ROM for movie.");
return 0;
goto out;
}
get_ext(rom_fname, ext);
lprintf("gmv loaded for %s\n", rom_fname);
@ -552,7 +558,7 @@ int emu_reload_rom(char *rom_fname)
dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
if (!dummy) {
menu_update_msg("Could't find a ROM to patch.");
return 0;
goto out;
}
get_ext(rom_fname, ext);
}
@ -560,7 +566,7 @@ int emu_reload_rom(char *rom_fname)
media_type = detect_media(rom_fname);
if (media_type == PM_BAD) {
menu_update_msg("Not a ROM/CD img selected.");
return 0;
goto out;
}
shutdown_MCD();
@ -588,14 +594,14 @@ int emu_reload_rom(char *rom_fname)
(cd_region == 8 ? "EU" : "JAP") : "USA");
}
if (!find_bios(cd_region, &used_rom_name))
return 0;
goto out;
get_ext(used_rom_name, ext);
PicoAHW |= PAHW_MCD;
}
else {
menu_update_msg("Invalid CD image");
return 0;
goto out;
}
}
else if (media_type == PM_MARK3) {
@ -606,10 +612,11 @@ int emu_reload_rom(char *rom_fname)
rom = pm_open(used_rom_name);
if (rom == NULL) {
menu_update_msg("Failed to open ROM");
return 0;
goto out;
}
menu_romload_prepare(used_rom_name); // also CD load
menu_romload_started = 1;
used_rom_name = NULL; // uses static_buff
ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);
@ -618,7 +625,7 @@ int emu_reload_rom(char *rom_fname)
if (ret == 2) menu_update_msg("Out of memory");
else if (ret == 3) menu_update_msg("Read failed");
else menu_update_msg("PicoCartLoad() failed.");
goto fail;
goto out;
}
// detect wrong files
@ -634,7 +641,7 @@ int emu_reload_rom(char *rom_fname)
if (bad_rom) {
menu_update_msg("Bad ROM detected.");
goto fail;
goto out;
}
// load config for this ROM (do this before insert to get correct region)
@ -648,7 +655,7 @@ int emu_reload_rom(char *rom_fname)
emu_make_path(static_buff, "carthw.cfg", sizeof(static_buff));
if (PicoCartInsert(rom_data, rom_size, static_buff)) {
menu_update_msg("Failed to load ROM.");
goto fail;
goto out;
}
// insert CD if it was detected
@ -658,11 +665,12 @@ int emu_reload_rom(char *rom_fname)
PicoCartUnload();
rom_data = NULL; // freed by unload
menu_update_msg("Insert_CD() failed, invalid CD image?");
goto fail;
goto out;
}
}
menu_romload_end();
menu_romload_started = 0;
if (PicoPatches) {
PicoPatchPrepare();
@ -702,13 +710,14 @@ int emu_reload_rom(char *rom_fname)
if (currentConfig.EmuOpt & EOPT_EN_SRAM)
emu_save_load_game(1, 1);
return 1;
fail:
if (rom_data)
retval = 1;
out:
if (retval == 0 && rom_data)
free(rom_data);
menu_romload_end();
return 0;
if (menu_romload_started)
menu_romload_end();
free(rom_fname);
return retval;
}
int emu_swap_cd(const char *fname)
@ -1466,6 +1475,7 @@ void emu_loop(void)
if (PicoAHW & PAHW_MCD)
PicoCDBufferInit();
plat_video_loop_prepare();
pemu_loop_prep();
/* number of ticks per frame */