#include <windows.h>
+#include <string.h>
+#include <sys/stat.h> // mkdir
+#include <sys/types.h>
+
+#include "kgsdk/Framework.h"
+#include "kgsdk/Framework2D.h"
+#include "kgsdk/FrameworkAudio.h"
+#include "../common/emu.h"
+#include "../common/lprintf.h"
+#include "../common/arm_utils.h"
#include "emu.h"
+#include "menu.h"
+#include "giz.h"
+#include "asm_utils.h"
+
+#include <Pico/PicoInt.h>
+#ifdef BENCHMARK
+#define OSD_FPS_X 220
+#else
+#define OSD_FPS_X 260
+#endif
+
+// main 300K gfx-related buffer. Used by menu and renderers.
+unsigned char gfx_buffer[321*240*2*2];
char romFileName[MAX_PATH];
int engineState;
-currentConfig_t currentConfig;
-unsigned char *rom_data = NULL;
-unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer
-int state_slot = 0;
+unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) )
int reset_timing = 0;
-int config_slot = 0, config_slot_current = 0;
-
-
-
-
-int emu_ReloadRom(void){}
-void emu_Init(void){}
-void emu_Deinit(void){}
-int emu_SaveLoadGame(int load, int sram){}
-void emu_Loop(void){}
-void emu_ResetGame(void){}
-int emu_ReadConfig(int game, int no_defaults){}
-int emu_WriteConfig(int game){}
-char *emu_GetSaveFName(int load, int is_sram, int slot){}
-int emu_check_save_file(int slot){}
-void emu_set_save_cbs(int gz){}
-void emu_forced_frame(void){}
-int emu_cd_check(int *pregion){}
-int find_bios(int region, char **bios_file){}
-void scaling_update(void){}
+
+static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos
+static DWORD noticeMsgTime = 0;
+static short *snd_cbuff = NULL;
+static int snd_cbuf_samples = 0, snd_all_samples = 0;
+
+
+static void blit(const char *fps, const char *notice);
+static void clearArea(int full);
+
+void emu_noticeMsgUpdated(void)
+{
+ noticeMsgTime = GetTickCount();
+}
+
+void emu_getMainDir(char *dst, int len)
+{
+ if (len > 0) *dst = 0;
+}
+
+static void emu_msg_cb(const char *msg)
+{
+ if (giz_screen != NULL) Framework2D_UnlockBuffer();
+ giz_screen = Framework2D_LockBuffer(1);
+
+ memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
+ emu_textOut16(4, 232, msg);
+ noticeMsgTime = GetTickCount() - 2000;
+
+ /* assumption: emu_msg_cb gets called only when something slow is about to happen */
+ reset_timing = 1;
+
+ Framework2D_UnlockBuffer();
+ giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
+}
+
+void emu_stateCb(const char *str)
+{
+ if (giz_screen != NULL) Framework2D_UnlockBuffer();
+ giz_screen = Framework2D_LockBuffer(1);
+
+ clearArea(0);
+ blit("", str);
+
+ Framework2D_UnlockBuffer();
+ giz_screen = NULL;
+
+ Sleep(0); /* yield the CPU, the system may need it */
+}
+
+static void emu_msg_tray_open(void)
+{
+ strcpy(noticeMsg, "CD tray opened");
+ noticeMsgTime = GetTickCount();
+}
+
+
+void emu_Init(void)
+{
+ // make dirs for saves, cfgs, etc.
+ mkdir("mds", 0777);
+ mkdir("srm", 0777);
+ mkdir("brm", 0777);
+ mkdir("cfg", 0777);
+
+ PicoInit();
+ PicoMessage = emu_msg_cb;
+ PicoMCDopenTray = emu_msg_tray_open;
+ PicoMCDcloseTray = menu_loop_tray;
+}
+
+void emu_Deinit(void)
+{
+ // save SRAM
+ if ((currentConfig.EmuOpt & 1) && SRam.changed) {
+ emu_SaveLoadGame(0, 1);
+ SRam.changed = 0;
+ }
+
+ if (!(currentConfig.EmuOpt & 0x20))
+ config_writelrom(PicoConfigFile);
+
+ PicoExit();
+}
+
+void emu_setDefaultConfig(void)
+{
+ memset(¤tConfig, 0, sizeof(currentConfig));
+ currentConfig.lastRomFile[0] = 0;
+ currentConfig.EmuOpt = 0x1f | 0x680; // | confirm_save, cd_leds, 16bit rend
+ currentConfig.PicoOpt = 0x07 | 0xc00; // | cd_pcm, cd_cdda
+ currentConfig.PsndRate = 22050;
+ currentConfig.PicoRegion = 0; // auto
+ currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP
+ currentConfig.Frameskip = -1; // auto
+ currentConfig.volume = 50;
+ currentConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU
+ currentConfig.KeyBinds[ 3] = 1<<1;
+ currentConfig.KeyBinds[ 0] = 1<<2;
+ currentConfig.KeyBinds[ 1] = 1<<3;
+ currentConfig.KeyBinds[ 5] = 1<<4;
+ currentConfig.KeyBinds[ 6] = 1<<5;
+ currentConfig.KeyBinds[ 7] = 1<<6;
+ currentConfig.KeyBinds[ 4] = 1<<7;
+ currentConfig.KeyBinds[13] = 1<<26; // switch rend
+ currentConfig.KeyBinds[ 8] = 1<<27; // save state
+ currentConfig.KeyBinds[ 9] = 1<<28; // load state
+ currentConfig.KeyBinds[12] = 1<<29; // vol up
+ currentConfig.KeyBinds[11] = 1<<30; // vol down
+ currentConfig.PicoCDBuffers = 0;
+ currentConfig.scaling = 0;
+}
+
+
+static int EmuScan16(unsigned int num, void *sdata)
+{
+ if (!(Pico.video.reg[1]&8)) num += 8;
+ DrawLineDest = (unsigned short *) giz_screen + 321*(num+1);
+
+ if ((currentConfig.EmuOpt&0x4000) && (num&1) == 0) // (Pico.m.frame_count&1))
+ return 1; // skip next line
+
+ return 0;
+}
+
+static int EmuScan8(unsigned int num, void *sdata)
+{
+ // draw like the fast renderer
+ if (!(Pico.video.reg[1]&8)) num += 8;
+ HighCol = gfx_buffer + 328*(num+1);
+
+ return 0;
+}
+
+static void osd_text(int x, int y, const char *text)
+{
+ int len = strlen(text) * 8 / 2;
+ int *p, h;
+ for (h = 0; h < 8; h++) {
+ p = (int *) ((unsigned short *) giz_screen+x+321*(y+h));
+ p = (int *) ((int)p & ~3); // align
+ memset32(p, 0, len);
+ }
+ emu_textOut16(x, y, text);
+}
+
+/*
+void log1(void *p1, void *p2)
+{
+ lprintf("%p %p %p\n", p1, p2, DrawLineDest);
+}
+*/
+
+static void cd_leds(void)
+{
+ static int old_reg = 0;
+ unsigned int col_g, col_r, *p;
+
+ if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change
+ old_reg = Pico_mcd->s68k_regs[0];
+
+ p = (unsigned int *)((short *)giz_screen + 321*2+4+2);
+ col_g = (old_reg & 2) ? 0x06000600 : 0;
+ col_r = (old_reg & 1) ? 0xc000c000 : 0;
+ *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 321/2 - 12/2 + 1;
+ *p++ = col_g; p+=3; *p++ = col_r; p += 321/2 - 10/2;
+ *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
+}
+
+
+static short localPal[0x100];
+
+static void blit(const char *fps, const char *notice)
+{
+ int emu_opt = currentConfig.EmuOpt;
+
+ if (PicoOpt&0x10)
+ {
+ int lines_flags = 224;
+ // 8bit fast renderer
+ if (Pico.m.dirtyPal) {
+ Pico.m.dirtyPal = 0;
+ vidConvCpyRGB565(localPal, Pico.cram, 0x40);
+ }
+ if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000;
+ if (currentConfig.EmuOpt&0x4000)
+ lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000;
+ vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags);
+ }
+ else if (!(emu_opt&0x80))
+ {
+ int lines_flags;
+ // 8bit accurate renderer
+ if (Pico.m.dirtyPal) {
+ Pico.m.dirtyPal = 0;
+ vidConvCpyRGB565(localPal, Pico.cram, 0x40);
+ if (Pico.video.reg[0xC]&8) { // shadow/hilight mode
+ //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
+ //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO?
+ blockcpy(localPal+0xc0, localPal+0x40, 0x40*2);
+ localPal[0xc0] = 0x0600;
+ localPal[0xd0] = 0xc000;
+ localPal[0xe0] = 0x0000; // reserved pixels for OSD
+ localPal[0xf0] = 0xffff;
+ }
+ /* no support
+ else if (rendstatus & 0x20) { // mid-frame palette changes
+ vidConvCpyRGB565(localPal+0x40, HighPal, 0x40);
+ vidConvCpyRGB565(localPal+0x80, HighPal+0x40, 0x40);
+ } */
+ }
+ lines_flags = (Pico.video.reg[1]&8) ? 240 : 224;
+ if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000;
+ if (currentConfig.EmuOpt&0x4000)
+ lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000;
+ vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags);
+ }
+
+ if (notice || (emu_opt & 2)) {
+ int h = 232;
+ if (notice) osd_text(4, h, notice);
+ if (emu_opt & 2) osd_text(OSD_FPS_X, h, fps);
+ }
+
+ if ((emu_opt & 0x400) && (PicoMCD & 1))
+ cd_leds();
+}
+
+// clears whole screen or just the notice area (in all buffers)
+static void clearArea(int full)
+{
+ if (giz_screen == NULL)
+ giz_screen = Framework2D_LockBuffer(1);
+ if (full) memset32(giz_screen, 0, 320*240*2/4);
+ else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
+
+ if (currentConfig.EmuOpt&0x8000) {
+ Framework2D_UnlockBuffer();
+ giz_screen = Framework2D_LockBuffer(0);
+ if (full) memset32(giz_screen, 0, 320*240*2/4);
+ else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4);
+ }
+}
+
+static void vidResetMode(void)
+{
+ giz_screen = Framework2D_LockBuffer(1);
+
+ if (PicoOpt&0x10) {
+ } else if (currentConfig.EmuOpt&0x80) {
+ PicoDrawSetColorFormat(1);
+ PicoScan = EmuScan16;
+ } else {
+ PicoDrawSetColorFormat(-1);
+ PicoScan = EmuScan8;
+ }
+ if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) {
+ // setup pal for 8-bit modes
+ localPal[0xc0] = 0x0600;
+ localPal[0xd0] = 0xc000;
+ localPal[0xe0] = 0x0000; // reserved pixels for OSD
+ localPal[0xf0] = 0xffff;
+ }
+ Pico.m.dirtyPal = 1;
+
+ memset32(giz_screen, 0, 321*240*2/4);
+ if (currentConfig.EmuOpt&0x8000) {
+ Framework2D_UnlockBuffer();
+ giz_screen = Framework2D_LockBuffer(0);
+ memset32(giz_screen, 0, 321*240*2/4);
+ }
+ Framework2D_UnlockBuffer();
+ giz_screen = NULL;
+}
+
+/*
+#include <stdarg.h>
+static void stdbg(const char *fmt, ...)
+{
+ static int cnt = 0;
+ va_list vl;
+
+ sprintf(noticeMsg, "%x ", cnt++);
+ va_start(vl, fmt);
+ vsnprintf(noticeMsg+strlen(noticeMsg), sizeof(noticeMsg)-strlen(noticeMsg), fmt, vl);
+ va_end(vl);
+
+ noticeMsgTime = GetTickCount();
+}
+*/
+
+static void updateSound(int len)
+{
+ if (PicoOpt&8) len<<=1;
+
+ snd_all_samples += len;
+ PsndOut += len;
+ if (PsndOut - snd_cbuff >= snd_cbuf_samples)
+ {
+ //if (PsndOut - snd_cbuff != snd_cbuf_samples)
+ // stdbg("snd diff is %i, not %i", PsndOut - snd_cbuff, snd_cbuf_samples);
+ PsndOut = snd_cbuff;
+ }
+}
+
+
+static void SkipFrame(void)
+{
+ PicoSkipFrame=1;
+ PicoFrame();
+ PicoSkipFrame=0;
+}
+
+/* forced frame to front buffer */
+void emu_forcedFrame(void)
+{
+ int po_old = PicoOpt;
+ int eo_old = currentConfig.EmuOpt;
+
+ PicoOpt &= ~0x0010;
+ PicoOpt |= 0x4080; // soft_scale | acc_sprites
+ currentConfig.EmuOpt |= 0x80;
+
+ if (giz_screen == NULL)
+ giz_screen = Framework2D_LockBuffer(1);
+
+ PicoDrawSetColorFormat(1);
+ PicoScan = EmuScan16;
+ PicoScan((unsigned) -1, NULL);
+ Pico.m.dirtyPal = 1;
+ PicoFrameDrawOnly();
+
+ Framework2D_UnlockBuffer();
+ giz_screen = NULL;
+
+ PicoOpt = po_old;
+ currentConfig.EmuOpt = eo_old;
+}
+
+
+static void RunEvents(unsigned int which)
+{
+ if (which & 0x1800) // save or load (but not both)
+ {
+ int do_it = 1;
+
+ if (PsndOut != NULL)
+ FrameworkAudio_SetPause(1);
+ if (giz_screen == NULL)
+ giz_screen = Framework2D_LockBuffer(1);
+ if ( emu_checkSaveFile(state_slot) &&
+ (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
+ (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save
+ {
+ int keys;
+ blit("", (which & 0x1000) ? "LOAD STATE? (PLAY=yes, STOP=no)" : "OVERWRITE SAVE? (PLAY=yes, STOP=no)");
+ while( !((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) )
+ Sleep(50);
+ if (keys & BTN_STOP) do_it = 0;
+ while( ((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) ) // wait for release
+ Sleep(50);
+ clearArea(0);
+ }
+
+ if (do_it)
+ {
+ osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
+ PicoStateProgressCB = emu_stateCb;
+ emu_SaveLoadGame((which & 0x1000) >> 12, 0);
+ PicoStateProgressCB = NULL;
+ Sleep(0);
+ }
+
+ if (PsndOut != NULL)
+ FrameworkAudio_SetPause(0);
+ reset_timing = 1;
+ }
+ if (which & 0x0400) // switch renderer
+ {
+ if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
+ else { PicoOpt|= 0x10; currentConfig.EmuOpt &= ~0x80; }
+
+ vidResetMode();
+
+ if (PicoOpt&0x10) {
+ strcpy(noticeMsg, " 8bit fast renderer");
+ } else if (currentConfig.EmuOpt&0x80) {
+ strcpy(noticeMsg, "16bit accurate renderer");
+ } else {
+ strcpy(noticeMsg, " 8bit accurate renderer");
+ }
+
+ noticeMsgTime = GetTickCount();
+ }
+ if (which & 0x0300)
+ {
+ if(which&0x0200) {
+ state_slot -= 1;
+ if(state_slot < 0) state_slot = 9;
+ } else {
+ state_slot += 1;
+ if(state_slot > 9) state_slot = 0;
+ }
+ sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
+ noticeMsgTime = GetTickCount();
+ }
+}
+
+static void updateKeys(void)
+{
+ unsigned int keys, allActions[2] = { 0, 0 }, events;
+ static unsigned int prevEvents = 0;
+ int i;
+
+ keys = Framework_PollGetButtons();
+ if (keys & BTN_HOME)
+ engineState = PGS_Menu;
+
+ keys &= CONFIGURABLE_KEYS;
+
+ for (i = 0; i < 32; i++)
+ {
+ if (keys & (1 << i))
+ {
+ int pl, acts = currentConfig.KeyBinds[i];
+ if (!acts) continue;
+ pl = (acts >> 16) & 1;
+ if (combo_keys & (1 << i))
+ {
+ int u = i+1, acts_c = acts & combo_acts;
+ // let's try to find the other one
+ if (acts_c)
+ for (; u < 32; u++)
+ if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {
+ allActions[pl] |= acts_c;
+ keys &= ~((1 << i) | (1 << u));
+ break;
+ }
+ // add non-combo actions if combo ones were not found
+ if (!acts_c || u == 32)
+ allActions[pl] |= acts & ~combo_acts;
+ } else {
+ allActions[pl] |= acts;
+ }
+ }
+ }
+
+ PicoPad[0] = (unsigned short) allActions[0];
+ PicoPad[1] = (unsigned short) allActions[1];
+
+ events = (allActions[0] | allActions[1]) >> 16;
+
+ // volume is treated in special way and triggered every frame
+ if ((events & 0x6000) && PsndOut != NULL)
+ {
+ int vol = currentConfig.volume;
+ if (events & 0x2000) {
+ if (vol < 100) vol++;
+ } else {
+ if (vol > 0) vol--;
+ }
+ FrameworkAudio_SetVolume(vol, vol);
+ sprintf(noticeMsg, "VOL: %02i ", vol);
+ noticeMsgTime = GetTickCount();
+ currentConfig.volume = vol;
+ }
+
+ events &= ~prevEvents;
+ if (events) RunEvents(events);
+ if (movie_data) emu_updateMovie();
+
+ prevEvents = (allActions[0] | allActions[1]) >> 16;
+}
+
+static void find_combos(void)
+{
+ int act, u;
+
+ // find out which keys and actions are combos
+ combo_keys = combo_acts = 0;
+ for (act = 0; act < 32; act++)
+ {
+ int keyc = 0, keyc2 = 0;
+ if (act == 16 || act == 17) continue; // player2 flag
+ if (act > 17)
+ {
+ for (u = 0; u < 32; u++)
+ if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;
+ }
+ else
+ {
+ for (u = 0; u < 32; u++)
+ if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1
+ (currentConfig.KeyBinds[u] & (1 << act))) keyc++;
+ for (u = 0; u < 32; u++)
+ if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2
+ (currentConfig.KeyBinds[u] & (1 << act))) keyc2++;
+ if (keyc2 > keyc) keyc = keyc2;
+ }
+ if (keyc > 1)
+ {
+ // loop again and mark those keys and actions as combo
+ for (u = 0; u < 32; u++)
+ {
+ if (currentConfig.KeyBinds[u] & (1 << act)) {
+ combo_keys |= 1 << u;
+ combo_acts |= 1 << act;
+ }
+ }
+ }
+ }
+}
+
+
+static void simpleWait(DWORD until)
+{
+ DWORD tval;
+ int diff;
+
+ tval = GetTickCount();
+ diff = (int)until - (int)tval;
+ if (diff >= 2)
+ Sleep(diff - 1);
+
+ while ((tval = GetTickCount()) < until && until - tval < 512) // some simple overflow detection
+ spend_cycles(1024*2);
+}
+
+void emu_Loop(void)
+{
+ static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
+ char fpsbuff[24]; // fps count c string
+ DWORD tval, tval_prev = 0, tval_thissec = 0; // timing
+ int frames_done = 0, frames_shown = 0, oldmodes = 0, sec_ms = 1000;
+ int target_fps, target_frametime, lim_time, tval_diff, i;
+ char *notice = NULL;
+
+ lprintf("entered emu_Loop()\n");
+
+ fpsbuff[0] = 0;
+
+ // make sure we are in correct mode
+ vidResetMode();
+ if (currentConfig.scaling) PicoOpt|=0x4000;
+ else PicoOpt&=~0x4000;
+ Pico.m.dirtyPal = 1;
+ oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
+ find_combos();
+
+ // pal/ntsc might have changed, reset related stuff
+ target_fps = Pico.m.pal ? 50 : 60;
+ target_frametime = Pico.m.pal ? (1000<<8)/50 : (1000<<8)/60+1;
+ reset_timing = 1;
+
+ // prepare CD buffer
+ if (PicoMCD & 1) PicoCDBufferInit();
+
+ // prepare sound stuff
+ PsndOut = NULL;
+ if (currentConfig.EmuOpt & 4)
+ {
+ int ret, snd_excess_add, stereo;
+ if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) {
+ PsndRerate(Pico.m.frame_count ? 1 : 0);
+ }
+ stereo=(PicoOpt&8)>>3;
+ snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
+ snd_cbuf_samples = (PsndRate<<stereo) * 16 / target_fps;
+ lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
+ PsndRate, PsndLen, snd_excess_add, stereo, Pico.m.pal);
+ ret = FrameworkAudio_Init(PsndRate, snd_cbuf_samples, stereo);
+ if (ret != 0) {
+ lprintf("FrameworkAudio_Init() failed: %i\n", ret);
+ sprintf(noticeMsg, "sound init failed (%i), snd disabled", ret);
+ noticeMsgTime = GetTickCount();
+ currentConfig.EmuOpt &= ~4;
+ } else {
+ FrameworkAudio_SetVolume(currentConfig.volume, currentConfig.volume);
+ PicoWriteSound = updateSound;
+ snd_cbuff = FrameworkAudio_56448Buffer();
+ PsndOut = snd_cbuff + snd_cbuf_samples / 2; // start writing at the middle
+ snd_all_samples = 0;
+ PsndRate_old = PsndRate;
+ PicoOpt_old = PicoOpt;
+ pal_old = Pico.m.pal;
+ }
+ }
+
+ // loop?
+ while (engineState == PGS_Running)
+ {
+ int modes;
+
+ tval = GetTickCount();
+ if (reset_timing || tval < tval_prev) {
+ //stdbg("timing reset");
+ reset_timing = 0;
+ tval_thissec = tval;
+ frames_shown = frames_done = 0;
+ }
+
+ // show notice message?
+ if (noticeMsgTime) {
+ static int noticeMsgSum;
+ if (tval - noticeMsgTime > 2000) { // > 2.0 sec
+ noticeMsgTime = 0;
+ clearArea(0);
+ notice = 0;
+ } else {
+ int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
+ if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
+ notice = noticeMsg;
+ }
+ }
+
+ // check for mode changes
+ modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
+ if (modes != oldmodes) {
+ oldmodes = modes;
+ clearArea(1);
+ }
+
+ // second passed?
+ if (tval - tval_thissec >= sec_ms)
+ {
+#ifdef BENCHMARK
+ static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
+ if(++bench == 10) {
+ bench = 0;
+ bench_fps_s = bench_fps;
+ bf[bfp++ & 3] = bench_fps;
+ bench_fps = 0;
+ }
+ bench_fps += frames_shown;
+ sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
+#else
+ if(currentConfig.EmuOpt & 2)
+ sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
+#endif
+ //tval_thissec += 1000;
+ tval_thissec += sec_ms;
+
+ if (PsndOut != NULL)
+ {
+ /* some code which tries to sync things to audio clock, the dirty way */
+ static int audio_skew_prev = 0;
+ int audio_skew, adj, co = 9, shift = 7;
+ audio_skew = snd_all_samples*2 - FrameworkAudio_BufferPos();
+ if (PsndRate == 22050) co = 10;
+ if (PsndRate > 22050) co = 11;
+ if (PicoOpt&8) shift++;
+ if (audio_skew < 0) {
+ adj = -((-audio_skew) >> shift);
+ if (audio_skew > -(6<<co)) adj>>=1;
+ if (audio_skew > -(4<<co)) adj>>=1;
+ if (audio_skew > -(2<<co)) adj>>=1;
+ if (audio_skew > audio_skew_prev) adj>>=2; // going up already
+ } else {
+ adj = audio_skew >> shift;
+ if (audio_skew < (6<<co)) adj>>=1;
+ if (audio_skew < (4<<co)) adj>>=1;
+ if (audio_skew < (2<<co)) adj>>=1;
+ if (audio_skew < audio_skew_prev) adj>>=2;
+ }
+ audio_skew_prev = audio_skew;
+ target_frametime += adj;
+ sec_ms = (target_frametime * target_fps) >> 8;
+ //stdbg("%i %i %i", audio_skew, adj, sec_ms);
+ frames_done = frames_shown = 0;
+ }
+ else if (currentConfig.Frameskip < 0) {
+ frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
+ frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;
+ if (frames_shown > frames_done) frames_shown = frames_done;
+ } else {
+ frames_done = frames_shown = 0;
+ }
+ }
+#ifdef PFRAMES
+ sprintf(fpsbuff, "%i", Pico.m.frame_count);
+#endif
+
+ tval_prev = tval;
+ lim_time = (frames_done+1) * target_frametime;
+ if (currentConfig.Frameskip >= 0) // frameskip enabled
+ {
+ for (i = 0; i < currentConfig.Frameskip; i++) {
+ updateKeys();
+ SkipFrame(); frames_done++;
+ if (PsndOut) { // do framelimitting if sound is enabled
+ int tval_diff;
+ tval = GetTickCount();
+ tval_diff = (int)(tval - tval_thissec) << 8;
+ if (tval_diff < lim_time) // we are too fast
+ simpleWait(tval + ((lim_time - tval_diff)>>8));
+ }
+ lim_time += target_frametime;
+ }
+ }
+ else // auto frameskip
+ {
+ int tval_diff;
+ tval = GetTickCount();
+ tval_diff = (int)(tval - tval_thissec) << 8;
+ if (tval_diff > lim_time)
+ {
+ // no time left for this frame - skip
+ if (tval_diff - lim_time >= (300<<8)) {
+ /* something caused a slowdown for us (disk access? cache flush?)
+ * try to recover by resetting timing... */
+ reset_timing = 1;
+ continue;
+ }
+ updateKeys();
+ SkipFrame(); frames_done++;
+ continue;
+ }
+ }
+
+ updateKeys();
+
+ if (currentConfig.EmuOpt&0x80)
+ /* be sure correct framebuffer is locked */
+ giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
+
+ if (!(PicoOpt&0x10))
+ PicoScan((unsigned) -1, NULL);
+
+ PicoFrame();
+
+ if (giz_screen == NULL)
+ giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1);
+
+ blit(fpsbuff, notice);
+
+ if (giz_screen != NULL) {
+ Framework2D_UnlockBuffer();
+ giz_screen = NULL;
+ }
+
+ if (currentConfig.EmuOpt&0x2000)
+ Framework2D_WaitVSync();
+
+ if (currentConfig.EmuOpt&0x8000)
+ Framework2D_Flip();
+
+ // check time
+ tval = GetTickCount();
+ tval_diff = (int)(tval - tval_thissec) << 8;
+
+ if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300<<8)) // slowdown detection
+ reset_timing = 1;
+ else if (PsndOut != NULL || currentConfig.Frameskip < 0)
+ {
+ // sleep if we are still too fast
+ if (tval_diff < lim_time)
+ {
+ // we are too fast
+ simpleWait(tval + ((lim_time - tval_diff) >> 8));
+ }
+ }
+
+ frames_done++; frames_shown++;
+ }
+
+
+ if (PicoMCD & 1) PicoCDBufferFree();
+
+ if (PsndOut != NULL) {
+ PsndOut = snd_cbuff = NULL;
+ FrameworkAudio_Close();
+ }
+
+ // save SRAM
+ if ((currentConfig.EmuOpt & 1) && SRam.changed) {
+ emu_stateCb("Writing SRAM/BRAM..");
+ emu_SaveLoadGame(0, 1);
+ SRam.changed = 0;
+ }
+}
+
+
+void emu_ResetGame(void)
+{
+ PicoReset(0);
+ reset_timing = 1;
+}