X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=common%2Femu.c;h=1e836941176c40db7842fbee2a94b41722f71971;hb=9cfdd2d2e94daaeb85ab7f1675312dec80659ec3;hp=627c3be285356dcf5d305a83bae0020c47ace5d2;hpb=9efc102f1c8f6e2ebc5412f1b2c45a0c77acad48;p=libpicofe.git
diff --git a/common/emu.c b/common/emu.c
index 627c3be..1e83694 100644
--- a/common/emu.c
+++ b/common/emu.c
@@ -41,9 +41,11 @@ int pico_pen_x = 320/2, pico_pen_y = 240/2;
int pico_inp_mode = 0;
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] = { 0, };
-char rom_fname_loaded[512] = { 0, };
+char rom_fname_reload[512];
+char rom_fname_loaded[512];
int rom_loaded = 0;
int reset_timing = 0;
static unsigned int notice_msg_time; /* when started showing */
@@ -113,7 +115,6 @@ static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
static int find_bios(int region, char **bios_file)
{
- static char bios_path[1024];
int i, count;
const char * const *files;
FILE *f = NULL;
@@ -133,26 +134,27 @@ static int find_bios(int region, char **bios_file)
for (i = 0; i < count; i++)
{
- emu_make_path(bios_path, files[i], sizeof(bios_path) - 4);
- strcat(bios_path, ".bin");
- f = fopen(bios_path, "rb");
+ emu_make_path(static_buff, files[i], sizeof(static_buff) - 4);
+ strcat(static_buff, ".bin");
+ f = fopen(static_buff, "rb");
if (f) break;
- bios_path[strlen(bios_path) - 4] = 0;
- strcat(bios_path, ".zip");
- f = fopen(bios_path, "rb");
+ static_buff[strlen(static_buff) - 4] = 0;
+ strcat(static_buff, ".zip");
+ f = fopen(static_buff, "rb");
if (f) break;
}
if (f) {
- lprintf("using bios: %s\n", bios_path);
+ lprintf("using bios: %s\n", static_buff);
fclose(f);
- if (bios_file) *bios_file = bios_path;
+ if (bios_file)
+ *bios_file = static_buff;
return 1;
} else {
- sprintf(bios_path, "no %s BIOS files found, read docs",
+ sprintf(static_buff, "no %s BIOS files found, read docs",
region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
- me_update_msg(bios_path);
+ me_update_msg(static_buff);
return 0;
}
}
@@ -462,25 +464,25 @@ int emu_reload_rom(char *rom_fname)
// check for both gmv and rom
int dummy;
FILE *movie_file = fopen(rom_fname, "rb");
- if(!movie_file) {
+ if (!movie_file) {
me_update_msg("Failed to open movie.");
return 0;
}
fseek(movie_file, 0, SEEK_END);
movie_size = ftell(movie_file);
fseek(movie_file, 0, SEEK_SET);
- if(movie_size < 64+3) {
+ if (movie_size < 64+3) {
me_update_msg("Invalid GMV file.");
fclose(movie_file);
return 0;
}
movie_data = malloc(movie_size);
- if(movie_data == NULL) {
+ if (movie_data == NULL) {
me_update_msg("low memory.");
fclose(movie_file);
return 0;
}
- fread(movie_data, 1, movie_size, movie_file);
+ dummy = fread(movie_data, 1, movie_size, movie_file);
fclose(movie_file);
if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
me_update_msg("Invalid GMV file.");
@@ -514,6 +516,9 @@ int emu_reload_rom(char *rom_fname)
shutdown_MCD();
PicoPatchUnload();
+ PicoCartUnload();
+ rom_loaded = 0;
+
PicoAHW = 0;
if (media_type == PM_CD)
@@ -557,9 +562,7 @@ int emu_reload_rom(char *rom_fname)
}
menu_romload_prepare(used_rom_name); // also CD load
-
- PicoCartUnload();
- rom_loaded = 0;
+ used_rom_name = NULL; // uses static_buff
ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);
pm_close(rom);
@@ -594,7 +597,8 @@ int emu_reload_rom(char *rom_fname)
if (!ret) emu_read_config(0, 0);
}
- if (PicoCartInsert(rom_data, rom_size)) {
+ emu_make_path(static_buff, "carthw.cfg", sizeof(static_buff));
+ if (PicoCartInsert(rom_data, rom_size, static_buff)) {
me_update_msg("Failed to load ROM.");
goto fail;
}
@@ -700,6 +704,7 @@ static void romfname_ext(char *dst, const char *prefix, const char *ext)
if (ext) strcat(dst, ext);
}
+//
void emu_make_path(char *buff, const char *end, int size)
{
int pos, end_len;
@@ -725,6 +730,27 @@ static void make_config_cfg(char *cfg_buff_512)
cfg_buff_512[511] = 0;
}
+void emu_prep_defconfig(void)
+{
+ memset(&defaultConfig, 0, sizeof(defaultConfig));
+ defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_CONFIRM_SAVE|EOPT_EN_CD_LEDS;
+ defaultConfig.s_PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
+ POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES |
+ POPT_EN_32X|POPT_EN_PWM;
+ defaultConfig.s_PsndRate = 44100;
+ defaultConfig.s_PicoRegion = 0; // auto
+ defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
+ defaultConfig.s_PicoCDBuffers = 0;
+ defaultConfig.Frameskip = -1; // auto
+ defaultConfig.volume = 50;
+ defaultConfig.gamma = 100;
+ defaultConfig.scaling = 0;
+ defaultConfig.turbo_rate = 15;
+
+ // platform specific overrides
+ pemu_prep_defconfig();
+}
+
void emu_set_defconfig(void)
{
memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));
@@ -781,7 +807,7 @@ int emu_read_config(int game, int no_defaults)
}
}
- plat_validate_config();
+ pemu_validate_config();
// some sanity checks
#ifdef PSP
@@ -907,7 +933,7 @@ static int try_ropen_file(const char *fname)
char *emu_get_save_fname(int load, int is_sram, int slot)
{
- static char saveFname[512];
+ char *saveFname = static_buff;
char ext[16];
if (is_sram)
@@ -1003,13 +1029,16 @@ int emu_save_load_game(int load, int sram)
sram_size = SRam.size;
sram_data = SRam.data;
}
- if (!sram_data) return 0; // SRam forcefully disabled for this game
+ if (sram_data == NULL)
+ return 0; // SRam forcefully disabled for this game
if (load)
{
sramFile = fopen(saveFname, "rb");
- if(!sramFile) return -1;
- fread(sram_data, 1, sram_size, sramFile);
+ if (!sramFile)
+ return -1;
+ ret = fread(sram_data, 1, sram_size, sramFile);
+ ret = ret > 0 ? 0 : -1;
fclose(sramFile);
if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))
memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
@@ -1087,7 +1116,7 @@ static void emu_tray_close(void)
void emu_32x_startup(void)
{
- plat_video_toggle_renderer(0, 1, 0);
+ plat_video_toggle_renderer(0, 0);
system_announce();
}
@@ -1218,9 +1247,9 @@ static void run_events_ui(unsigned int which)
PicoStateProgressCB = NULL;
}
}
- if ((which & PEV_SWITCH_RND) && !(PicoAHW & PAHW_32X))
+ if (which & PEV_SWITCH_RND)
{
- plat_video_toggle_renderer(1, 0, 0);
+ plat_video_toggle_renderer(1, 0);
}
if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))
{
@@ -1299,12 +1328,27 @@ void emu_init(void)
char path[512];
int pos;
+#if 0
+ // FIXME: handle through menu, etc
+ FILE *f;
+ f = fopen("32X_M_BIOS.BIN", "rb");
+ p32x_bios_m = malloc(2048);
+ fread(p32x_bios_m, 1, 2048, f);
+ fclose(f);
+ f = fopen("32X_S_BIOS.BIN", "rb");
+ p32x_bios_s = malloc(1024);
+ fread(p32x_bios_s, 1, 1024, f);
+ fclose(f);
+#endif
+
/* make dirs for saves */
pos = plat_get_root_dir(path, sizeof(path) - 4);
mkdir_path(path, pos, "mds");
mkdir_path(path, pos, "srm");
mkdir_path(path, pos, "brm");
+ pprof_init();
+
make_config_cfg(path);
config_readlrom(path);
@@ -1331,6 +1375,8 @@ void emu_finish(void)
#endif
}
+ pprof_finish();
+
PicoExit();
}
@@ -1373,6 +1419,7 @@ void emu_loop(void)
// prepare CD buffer
if (PicoAHW & PAHW_MCD)
PicoCDBufferInit();
+ PicoLoopPrepare();
pemu_loop_prep();
@@ -1389,6 +1436,8 @@ void emu_loop(void)
unsigned int timestamp;
int diff, diff_lim;
+ pprof_start(main);
+
timestamp = get_ticks();
if (reset_timing) {
reset_timing = 0;
@@ -1427,6 +1476,7 @@ void emu_loop(void)
}
bench_fps += frames_shown;
sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
+ printf("%s\n", fpsbuff);
#else
if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {
sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
@@ -1444,17 +1494,15 @@ void emu_loop(void)
{
if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)
pframes_done = 0;
- else {
+ else
pframes_done -= target_fps;
- /* don't allow it to drift during heavy slowdowns */
- if (pframes_done < -5) {
- reset_timing = 1;
- continue;
- }
- if (pframes_done < -2)
- pframes_done = -2;
+ if (pframes_done < -2) {
+ /* don't drag more than 2 frames behind */
+ pframes_done = -2;
+ timestamp_base = timestamp - 2 * target_frametime;
}
- timestamp_base += ms_to_ticks(1000);
+ else
+ timestamp_base += ms_to_ticks(1000);
}
diff = timestamp - timestamp_base;
@@ -1468,7 +1516,7 @@ void emu_loop(void)
pframes_done++; frames_done++;
diff_lim += target_frametime;
- if (!(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) {
+ if (!(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT))) {
timestamp = get_ticks();
diff = timestamp - timestamp_base;
if (!reset_timing && diff < diff_lim) // we are too fast
@@ -1479,22 +1527,23 @@ void emu_loop(void)
else if (diff > diff_lim)
{
/* no time left for this frame - skip */
- if (diff - diff_lim >= ms_to_ticks(200)) {
- /* if too much behind, reset instead */
- reset_timing = 1;
+ /* limit auto frameskip to 8 */
+ if (frames_done / 8 <= frames_shown) {
+ emu_update_input();
+ skip_frame(diff < diff_lim + target_frametime * 16);
+ pframes_done++; frames_done++;
continue;
}
- emu_update_input();
- skip_frame(diff < diff_lim + target_frametime * 2);
- pframes_done++; frames_done++;
- continue;
}
emu_update_input();
PicoFrame();
+ pemu_finalize_frame(fpsbuff, notice_msg);
+
+ // plat_video_flip();
/* frame limiter */
- if (!reset_timing && !(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT))
+ if (!reset_timing && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))
{
timestamp = get_ticks();
diff = timestamp - timestamp_base;
@@ -1509,9 +1558,13 @@ void emu_loop(void)
}
}
- pemu_update_display(fpsbuff, notice_msg);
+ // XXX: for some plats it might be better to flip before vsync
+ // (due to shadow registers in display hw)
+ plat_video_flip();
pframes_done++; frames_done++; frames_shown++;
+
+ pprof_end(main);
}
emu_set_fastforward(0);