X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=common%2Femu.c;h=bde10e4da2c7f57d1980c4a69dc832a7ba91a5b1;hb=b188c2b6d0448a9c328a9dcae5ba5c8c8b5273f3;hp=aca54bef1cbf2aee5ccbf8c8b342edf5e60b2c36;hpb=86c1049d1fba4c8752fd08c6bc848c3318b91eac;p=libpicofe.git
diff --git a/common/emu.c b/common/emu.c
index aca54be..bde10e4 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;
}
}
@@ -409,6 +411,32 @@ static void shutdown_MCD(void)
PicoAHW &= ~PAHW_MCD;
}
+static void system_announce(void)
+{
+ const char *sys_name, *tv_standard;
+ int fps;
+
+ if (PicoAHW & PAHW_SMS) {
+ sys_name = "Master System";
+ } else if (PicoAHW & PAHW_PICO) {
+ sys_name = "Pico";
+ } else if (PicoAHW & PAHW_MCD) {
+ sys_name = "Mega CD";
+ if ((Pico.m.hardware & 0xc0) == 0x80)
+ sys_name = "Sega CD";
+ } else if (PicoAHW & PAHW_32X) {
+ sys_name = "32X";
+ } else {
+ sys_name = "MegaDrive";
+ if ((Pico.m.hardware & 0xc0) == 0x80)
+ sys_name = "Genesis";
+ }
+ tv_standard = Pico.m.pal ? "PAL" : "NTSC";
+ fps = Pico.m.pal ? 50 : 60;
+
+ emu_status_msg("%s %s / %dFPS", tv_standard, sys_name, fps);
+}
+
// note: this function might mangle rom_fname
// XXX: portions of this code should move to pico/
int emu_reload_rom(char *rom_fname)
@@ -436,25 +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.");
@@ -488,6 +516,9 @@ int emu_reload_rom(char *rom_fname)
shutdown_MCD();
PicoPatchUnload();
+ PicoCartUnload();
+ rom_loaded = 0;
+
PicoAHW = 0;
if (media_type == PM_CD)
@@ -531,9 +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);
@@ -568,7 +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;
}
@@ -612,21 +642,7 @@ int emu_reload_rom(char *rom_fname)
}
else
{
- const char *sys_name, *tv_standard;
- int fps;
-
- if (PicoAHW & PAHW_SMS) {
- sys_name = "Master System";
- } else {
- sys_name = "MegaDrive";
- if ((Pico.m.hardware&0xc0) == 0x80)
- sys_name = "Genesis";
- }
- tv_standard = Pico.m.pal ? "PAL" : "NTSC";
- fps = Pico.m.pal ? 50 : 60;
-
- emu_status_msg("%s %s / %dFPS", tv_standard, sys_name, fps);
-
+ system_announce();
PicoOpt &= ~POPT_DIS_VDP_FIFO;
}
@@ -688,6 +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;
@@ -713,6 +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));
@@ -769,7 +807,7 @@ int emu_read_config(int game, int no_defaults)
}
}
- plat_validate_config();
+ pemu_validate_config();
// some sanity checks
#ifdef PSP
@@ -895,7 +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)
@@ -977,7 +1015,7 @@ int emu_save_load_game(int load, int sram)
int truncate = 1;
if (PicoAHW & PAHW_MCD)
{
- if (PicoOpt&POPT_EN_MCD_RAMCART) {
+ if (PicoOpt & POPT_EN_MCD_RAMCART) {
sram_size = 0x12000;
sram_data = SRam.data;
if (sram_data)
@@ -988,17 +1026,19 @@ int emu_save_load_game(int load, int sram)
truncate = 0; // the .brm may contain RAM cart data after normal brm
}
} else {
- sram_size = SRam.end-SRam.start+1;
- if(Pico.m.sram_reg & 4) sram_size=0x2000;
+ 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);
@@ -1074,6 +1114,12 @@ static void emu_tray_close(void)
emu_status_msg("CD tray closed.");
}
+void emu_32x_startup(void)
+{
+ plat_video_toggle_renderer(0, 1, 0);
+ system_announce();
+}
+
void emu_reset_game(void)
{
PicoReset();
@@ -1201,9 +1247,9 @@ static void run_events_ui(unsigned int which)
PicoStateProgressCB = NULL;
}
}
- if (which & PEV_SWITCH_RND)
+ if ((which & PEV_SWITCH_RND) && !(PicoAHW & PAHW_32X))
{
- plat_video_toggle_renderer(1, 0);
+ plat_video_toggle_renderer(1, 0, 0);
}
if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))
{
@@ -1282,6 +1328,19 @@ 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");
@@ -1332,7 +1391,7 @@ void emu_loop(void)
{
int pframes_done; /* "period" frames, used for sync */
int frames_done, frames_shown; /* actual frames for fps counter */
- int oldmodes, target_fps, target_frametime;
+ int target_fps, target_frametime;
unsigned int timestamp_base = 0, timestamp_fps;
char *notice_msg = NULL;
char fpsbuff[24];
@@ -1341,8 +1400,8 @@ void emu_loop(void)
fpsbuff[0] = 0;
/* make sure we are in correct mode */
- oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
Pico.m.dirtyPal = 1;
+ rendstatus_old = -1;
/* number of ticks per frame */
if (Pico.m.pal) {
@@ -1356,6 +1415,7 @@ void emu_loop(void)
// prepare CD buffer
if (PicoAHW & PAHW_MCD)
PicoCDBufferInit();
+ PicoLoopPrepare();
pemu_loop_prep();
@@ -1371,7 +1431,6 @@ void emu_loop(void)
{
unsigned int timestamp;
int diff, diff_lim;
- int modes;
timestamp = get_ticks();
if (reset_timing) {
@@ -1398,13 +1457,6 @@ void emu_loop(void)
}
}
- // check for mode changes
- modes = ((Pico.video.reg[12]&1)<<2) | (Pico.video.reg[1]&8);
- if (modes != oldmodes) {
- oldmodes = modes;
- pemu_video_mode_change(!(modes & 4), (modes & 8));
- }
-
// second changed?
if (timestamp - timestamp_fps >= ms_to_ticks(1000))
{
@@ -1459,7 +1511,7 @@ 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
@@ -1483,9 +1535,12 @@ void emu_loop(void)
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;
@@ -1500,7 +1555,9 @@ 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++;
}