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1 | #include <windows.h> |
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2 | #include <string.h> |
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3 | |
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4 | #include <sys/stat.h> // mkdir |
5 | #include <sys/types.h> |
6 | |
7 | #include "kgsdk/Framework.h" |
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8 | #include "kgsdk/Framework2D.h" |
9 | #include "kgsdk/FrameworkAudio.h" |
10 | #include "../common/emu.h" |
11 | #include "../common/lprintf.h" |
12 | #include "../common/arm_utils.h" |
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13 | #include "emu.h" |
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14 | #include "menu.h" |
15 | #include "giz.h" |
16 | #include "asm_utils.h" |
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17 | |
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18 | #include <Pico/PicoInt.h> |
19 | |
20 | #ifdef BENCHMARK |
21 | #define OSD_FPS_X 220 |
22 | #else |
23 | #define OSD_FPS_X 260 |
24 | #endif |
25 | |
26 | // main 300K gfx-related buffer. Used by menu and renderers. |
27 | unsigned char gfx_buffer[321*240*2*2]; |
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28 | char romFileName[MAX_PATH]; |
29 | int engineState; |
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30 | |
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31 | unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) ) |
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32 | int reset_timing = 0; |
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33 | |
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34 | static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos |
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35 | static DWORD noticeMsgTime = 0; |
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36 | static short *snd_cbuff = NULL; |
37 | static int snd_cbuf_samples = 0, snd_all_samples = 0; |
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38 | |
39 | |
40 | static void blit(const char *fps, const char *notice); |
41 | static void clearArea(int full); |
42 | |
43 | void emu_noticeMsgUpdated(void) |
44 | { |
45 | noticeMsgTime = GetTickCount(); |
46 | } |
47 | |
48 | void emu_getMainDir(char *dst, int len) |
49 | { |
50 | if (len > 0) *dst = 0; |
51 | } |
52 | |
53 | static void emu_msg_cb(const char *msg) |
54 | { |
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55 | if (giz_screen != NULL) Framework2D_UnlockBuffer(); |
56 | giz_screen = Framework2D_LockBuffer(1); |
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57 | |
58 | memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); |
59 | emu_textOut16(4, 232, msg); |
60 | noticeMsgTime = GetTickCount() - 2000; |
61 | |
62 | /* assumption: emu_msg_cb gets called only when something slow is about to happen */ |
63 | reset_timing = 1; |
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64 | |
65 | Framework2D_UnlockBuffer(); |
66 | giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1); |
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67 | } |
68 | |
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69 | void emu_stateCb(const char *str) |
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70 | { |
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71 | if (giz_screen != NULL) Framework2D_UnlockBuffer(); |
72 | giz_screen = Framework2D_LockBuffer(1); |
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73 | |
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74 | clearArea(0); |
75 | blit("", str); |
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76 | |
77 | Framework2D_UnlockBuffer(); |
78 | giz_screen = NULL; |
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79 | |
80 | Sleep(0); /* yield the CPU, the system may need it */ |
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81 | } |
82 | |
83 | static void emu_msg_tray_open(void) |
84 | { |
85 | strcpy(noticeMsg, "CD tray opened"); |
86 | noticeMsgTime = GetTickCount(); |
87 | } |
88 | |
89 | |
90 | void emu_Init(void) |
91 | { |
92 | // make dirs for saves, cfgs, etc. |
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93 | mkdir("mds", 0777); |
94 | mkdir("srm", 0777); |
95 | mkdir("brm", 0777); |
96 | mkdir("cfg", 0777); |
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97 | |
98 | PicoInit(); |
99 | PicoMessage = emu_msg_cb; |
100 | PicoMCDopenTray = emu_msg_tray_open; |
101 | PicoMCDcloseTray = menu_loop_tray; |
102 | } |
103 | |
104 | void emu_Deinit(void) |
105 | { |
106 | // save SRAM |
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107 | if ((currentConfig.EmuOpt & 1) && SRam.changed) { |
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108 | emu_SaveLoadGame(0, 1); |
109 | SRam.changed = 0; |
110 | } |
111 | |
112 | if (!(currentConfig.EmuOpt & 0x20)) { |
113 | FILE *f = fopen(PicoConfigFile, "r+b"); |
114 | if (!f) emu_WriteConfig(0); |
115 | else { |
116 | // if we already have config, reload it, except last ROM |
117 | fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET); |
118 | fread(¤tConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f); |
119 | fseek(f, 0, SEEK_SET); |
120 | fwrite(¤tConfig, 1, sizeof(currentConfig), f); |
121 | fflush(f); |
122 | fclose(f); |
123 | } |
124 | } |
125 | |
126 | PicoExit(); |
127 | } |
128 | |
129 | void emu_setDefaultConfig(void) |
130 | { |
131 | memset(¤tConfig, 0, sizeof(currentConfig)); |
132 | currentConfig.lastRomFile[0] = 0; |
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133 | currentConfig.EmuOpt = 0x1f | 0x680; // | confirm_save, cd_leds, 16bit rend |
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134 | currentConfig.PicoOpt = 0x07 | 0xc00; // | cd_pcm, cd_cdda |
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135 | currentConfig.PsndRate = 22050; |
136 | currentConfig.PicoRegion = 0; // auto |
137 | currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP |
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138 | currentConfig.Frameskip = -1; // auto |
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139 | currentConfig.volume = 50; |
140 | currentConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU |
141 | currentConfig.KeyBinds[ 3] = 1<<1; |
142 | currentConfig.KeyBinds[ 0] = 1<<2; |
143 | currentConfig.KeyBinds[ 1] = 1<<3; |
144 | currentConfig.KeyBinds[ 5] = 1<<4; |
145 | currentConfig.KeyBinds[ 6] = 1<<5; |
146 | currentConfig.KeyBinds[ 7] = 1<<6; |
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147 | currentConfig.KeyBinds[ 4] = 1<<7; |
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148 | currentConfig.KeyBinds[13] = 1<<26; // switch rend |
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149 | currentConfig.KeyBinds[ 8] = 1<<27; // save state |
150 | currentConfig.KeyBinds[ 9] = 1<<28; // load state |
151 | currentConfig.KeyBinds[12] = 1<<29; // vol up |
152 | currentConfig.KeyBinds[11] = 1<<30; // vol down |
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153 | currentConfig.PicoCDBuffers = 0; |
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154 | currentConfig.scaling = 0; |
155 | } |
156 | |
157 | |
158 | static int EmuScan16(unsigned int num, void *sdata) |
159 | { |
160 | if (!(Pico.video.reg[1]&8)) num += 8; |
161 | DrawLineDest = (unsigned short *) giz_screen + 321*(num+1); |
162 | |
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163 | if ((currentConfig.EmuOpt&0x4000) && (num&1) == 0) // (Pico.m.frame_count&1)) |
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164 | return 1; // skip next line |
165 | |
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166 | return 0; |
167 | } |
168 | |
169 | static int EmuScan8(unsigned int num, void *sdata) |
170 | { |
171 | // draw like the fast renderer |
172 | if (!(Pico.video.reg[1]&8)) num += 8; |
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173 | HighCol = gfx_buffer + 328*(num+1); |
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174 | |
175 | return 0; |
176 | } |
177 | |
178 | static void osd_text(int x, int y, const char *text) |
179 | { |
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180 | int len = strlen(text) * 8 / 2; |
181 | int *p, h; |
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182 | for (h = 0; h < 8; h++) { |
183 | p = (int *) ((unsigned short *) giz_screen+x+321*(y+h)); |
184 | p = (int *) ((int)p & ~3); // align |
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185 | memset32(p, 0, len); |
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186 | } |
187 | emu_textOut16(x, y, text); |
188 | } |
189 | |
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190 | /* |
191 | void log1(void *p1, void *p2) |
192 | { |
193 | lprintf("%p %p %p\n", p1, p2, DrawLineDest); |
194 | } |
195 | */ |
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196 | |
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197 | static void cd_leds(void) |
198 | { |
199 | static int old_reg = 0; |
200 | unsigned int col_g, col_r, *p; |
201 | |
202 | if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change |
203 | old_reg = Pico_mcd->s68k_regs[0]; |
204 | |
205 | p = (unsigned int *)((short *)giz_screen + 321*2+4+2); |
206 | col_g = (old_reg & 2) ? 0x06000600 : 0; |
207 | col_r = (old_reg & 1) ? 0xc000c000 : 0; |
208 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 321/2 - 12/2 + 1; |
209 | *p++ = col_g; p+=3; *p++ = col_r; p += 321/2 - 10/2; |
210 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; |
211 | } |
212 | |
213 | |
214 | static short localPal[0x100]; |
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215 | |
216 | static void blit(const char *fps, const char *notice) |
217 | { |
218 | int emu_opt = currentConfig.EmuOpt; |
219 | |
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220 | if (PicoOpt&0x10) |
221 | { |
222 | int lines_flags = 224; |
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223 | // 8bit fast renderer |
224 | if (Pico.m.dirtyPal) { |
225 | Pico.m.dirtyPal = 0; |
226 | vidConvCpyRGB565(localPal, Pico.cram, 0x40); |
227 | } |
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228 | if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000; |
229 | if (currentConfig.EmuOpt&0x4000) |
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230 | lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000; |
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231 | vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags); |
232 | } |
233 | else if (!(emu_opt&0x80)) |
234 | { |
235 | int lines_flags; |
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236 | // 8bit accurate renderer |
237 | if (Pico.m.dirtyPal) { |
238 | Pico.m.dirtyPal = 0; |
239 | vidConvCpyRGB565(localPal, Pico.cram, 0x40); |
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240 | if (Pico.video.reg[0xC]&8) { // shadow/hilight mode |
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241 | //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40); |
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242 | //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO? |
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243 | blockcpy(localPal+0xc0, localPal+0x40, 0x40*2); |
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244 | localPal[0xc0] = 0x0600; |
245 | localPal[0xd0] = 0xc000; |
246 | localPal[0xe0] = 0x0000; // reserved pixels for OSD |
247 | localPal[0xf0] = 0xffff; |
248 | } |
249 | /* no support |
250 | else if (rendstatus & 0x20) { // mid-frame palette changes |
251 | vidConvCpyRGB565(localPal+0x40, HighPal, 0x40); |
252 | vidConvCpyRGB565(localPal+0x80, HighPal+0x40, 0x40); |
253 | } */ |
254 | } |
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255 | lines_flags = (Pico.video.reg[1]&8) ? 240 : 224; |
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256 | if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000; |
257 | if (currentConfig.EmuOpt&0x4000) |
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258 | lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000; |
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259 | vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags); |
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260 | } |
261 | |
262 | if (notice || (emu_opt & 2)) { |
263 | int h = 232; |
264 | if (notice) osd_text(4, h, notice); |
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265 | if (emu_opt & 2) osd_text(OSD_FPS_X, h, fps); |
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266 | } |
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267 | |
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268 | if ((emu_opt & 0x400) && (PicoMCD & 1)) |
269 | cd_leds(); |
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270 | } |
271 | |
272 | // clears whole screen or just the notice area (in all buffers) |
273 | static void clearArea(int full) |
274 | { |
275 | if (giz_screen == NULL) |
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276 | giz_screen = Framework2D_LockBuffer(1); |
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277 | if (full) memset32(giz_screen, 0, 320*240*2/4); |
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278 | else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); |
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279 | |
280 | if (currentConfig.EmuOpt&0x8000) { |
281 | Framework2D_UnlockBuffer(); |
282 | giz_screen = Framework2D_LockBuffer(0); |
283 | if (full) memset32(giz_screen, 0, 320*240*2/4); |
284 | else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); |
285 | } |
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286 | } |
287 | |
288 | static void vidResetMode(void) |
289 | { |
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290 | giz_screen = Framework2D_LockBuffer(1); |
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291 | |
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292 | if (PicoOpt&0x10) { |
293 | } else if (currentConfig.EmuOpt&0x80) { |
294 | PicoDrawSetColorFormat(1); |
295 | PicoScan = EmuScan16; |
296 | } else { |
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297 | PicoDrawSetColorFormat(-1); |
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298 | PicoScan = EmuScan8; |
299 | } |
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300 | if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) { |
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301 | // setup pal for 8-bit modes |
302 | localPal[0xc0] = 0x0600; |
303 | localPal[0xd0] = 0xc000; |
304 | localPal[0xe0] = 0x0000; // reserved pixels for OSD |
305 | localPal[0xf0] = 0xffff; |
306 | } |
307 | Pico.m.dirtyPal = 1; |
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308 | |
309 | memset32(giz_screen, 0, 321*240*2/4); |
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310 | if (currentConfig.EmuOpt&0x8000) { |
311 | Framework2D_UnlockBuffer(); |
312 | giz_screen = Framework2D_LockBuffer(0); |
313 | memset32(giz_screen, 0, 321*240*2/4); |
314 | } |
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315 | Framework2D_UnlockBuffer(); |
316 | giz_screen = NULL; |
317 | } |
318 | |
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319 | /* |
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320 | #include <stdarg.h> |
321 | static void stdbg(const char *fmt, ...) |
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322 | { |
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323 | static int cnt = 0; |
324 | va_list vl; |
325 | |
326 | sprintf(noticeMsg, "%x ", cnt++); |
327 | va_start(vl, fmt); |
328 | vsnprintf(noticeMsg+strlen(noticeMsg), sizeof(noticeMsg)-strlen(noticeMsg), fmt, vl); |
329 | va_end(vl); |
330 | |
331 | noticeMsgTime = GetTickCount(); |
332 | } |
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333 | */ |
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334 | |
335 | static void updateSound(int len) |
336 | { |
337 | if (PicoOpt&8) len<<=1; |
338 | |
339 | snd_all_samples += len; |
340 | PsndOut += len; |
341 | if (PsndOut - snd_cbuff >= snd_cbuf_samples) |
342 | { |
da42200b |
343 | //if (PsndOut - snd_cbuff != snd_cbuf_samples) |
344 | // stdbg("snd diff is %i, not %i", PsndOut - snd_cbuff, snd_cbuf_samples); |
fa283c9a |
345 | PsndOut = snd_cbuff; |
346 | } |
347 | } |
348 | |
349 | |
350 | static void SkipFrame(void) |
351 | { |
352 | PicoSkipFrame=1; |
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353 | PicoFrame(); |
354 | PicoSkipFrame=0; |
355 | } |
356 | |
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357 | /* forced frame to front buffer */ |
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358 | void emu_forcedFrame(void) |
359 | { |
fa283c9a |
360 | int po_old = PicoOpt; |
361 | int eo_old = currentConfig.EmuOpt; |
362 | |
363 | PicoOpt &= ~0x0010; |
364 | PicoOpt |= 0x4080; // soft_scale | acc_sprites |
365 | currentConfig.EmuOpt |= 0x80; |
366 | |
367 | if (giz_screen == NULL) |
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368 | giz_screen = Framework2D_LockBuffer(1); |
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369 | |
370 | PicoDrawSetColorFormat(1); |
371 | PicoScan = EmuScan16; |
372 | PicoScan((unsigned) -1, NULL); |
373 | Pico.m.dirtyPal = 1; |
374 | PicoFrameDrawOnly(); |
375 | |
376 | Framework2D_UnlockBuffer(); |
377 | giz_screen = NULL; |
378 | |
379 | PicoOpt = po_old; |
380 | currentConfig.EmuOpt = eo_old; |
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381 | } |
382 | |
fa283c9a |
383 | |
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384 | static void RunEvents(unsigned int which) |
385 | { |
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386 | if (which & 0x1800) // save or load (but not both) |
387 | { |
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388 | int do_it = 1; |
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389 | |
390 | if (PsndOut != NULL) |
391 | FrameworkAudio_SetPause(1); |
392 | if (giz_screen == NULL) |
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393 | giz_screen = Framework2D_LockBuffer(1); |
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394 | if ( emu_checkSaveFile(state_slot) && |
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395 | (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load |
396 | (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save |
397 | { |
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398 | int keys; |
399 | blit("", (which & 0x1000) ? "LOAD STATE? (PLAY=yes, STOP=no)" : "OVERWRITE SAVE? (PLAY=yes, STOP=no)"); |
400 | while( !((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) ) |
401 | Sleep(50); |
402 | if (keys & BTN_STOP) do_it = 0; |
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403 | while( ((keys = Framework_PollGetButtons()) & (BTN_PLAY|BTN_STOP)) ) // wait for release |
404 | Sleep(50); |
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405 | clearArea(0); |
406 | } |
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407 | |
408 | if (do_it) |
409 | { |
9839d126 |
410 | osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME"); |
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411 | PicoStateProgressCB = emu_stateCb; |
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412 | emu_SaveLoadGame((which & 0x1000) >> 12, 0); |
413 | PicoStateProgressCB = NULL; |
da42200b |
414 | Sleep(0); |
9839d126 |
415 | } |
416 | |
da42200b |
417 | if (PsndOut != NULL) |
418 | FrameworkAudio_SetPause(0); |
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419 | reset_timing = 1; |
420 | } |
da42200b |
421 | if (which & 0x0400) // switch renderer |
422 | { |
a8869ad1 |
423 | if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; } |
424 | else { PicoOpt|= 0x10; currentConfig.EmuOpt &= ~0x80; } |
9839d126 |
425 | |
426 | vidResetMode(); |
427 | |
428 | if (PicoOpt&0x10) { |
429 | strcpy(noticeMsg, " 8bit fast renderer"); |
430 | } else if (currentConfig.EmuOpt&0x80) { |
431 | strcpy(noticeMsg, "16bit accurate renderer"); |
432 | } else { |
433 | strcpy(noticeMsg, " 8bit accurate renderer"); |
434 | } |
435 | |
436 | noticeMsgTime = GetTickCount(); |
437 | } |
da42200b |
438 | if (which & 0x0300) |
439 | { |
9839d126 |
440 | if(which&0x0200) { |
441 | state_slot -= 1; |
442 | if(state_slot < 0) state_slot = 9; |
443 | } else { |
444 | state_slot += 1; |
445 | if(state_slot > 9) state_slot = 0; |
446 | } |
447 | sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE"); |
448 | noticeMsgTime = GetTickCount(); |
449 | } |
450 | } |
451 | |
ea8c405f |
452 | static void updateKeys(void) |
453 | { |
2ec14aec |
454 | unsigned int keys, allActions[2] = { 0, 0 }, events; |
455 | static unsigned int prevEvents = 0; |
456 | int i; |
457 | |
458 | keys = Framework_PollGetButtons(); |
fa283c9a |
459 | if (keys & BTN_HOME) |
2ec14aec |
460 | engineState = PGS_Menu; |
2ec14aec |
461 | |
462 | keys &= CONFIGURABLE_KEYS; |
463 | |
464 | for (i = 0; i < 32; i++) |
465 | { |
fa283c9a |
466 | if (keys & (1 << i)) |
467 | { |
2ec14aec |
468 | int pl, acts = currentConfig.KeyBinds[i]; |
469 | if (!acts) continue; |
470 | pl = (acts >> 16) & 1; |
fa283c9a |
471 | if (combo_keys & (1 << i)) |
472 | { |
2ec14aec |
473 | int u = i+1, acts_c = acts & combo_acts; |
474 | // let's try to find the other one |
475 | if (acts_c) |
476 | for (; u < 32; u++) |
477 | if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) { |
478 | allActions[pl] |= acts_c; |
479 | keys &= ~((1 << i) | (1 << u)); |
480 | break; |
481 | } |
482 | // add non-combo actions if combo ones were not found |
483 | if (!acts_c || u == 32) |
484 | allActions[pl] |= acts & ~combo_acts; |
fa283c9a |
485 | } else { |
2ec14aec |
486 | allActions[pl] |= acts; |
487 | } |
488 | } |
489 | } |
490 | |
491 | PicoPad[0] = (unsigned short) allActions[0]; |
492 | PicoPad[1] = (unsigned short) allActions[1]; |
493 | |
494 | events = (allActions[0] | allActions[1]) >> 16; |
495 | |
496 | // volume is treated in special way and triggered every frame |
fa283c9a |
497 | if ((events & 0x6000) && PsndOut != NULL) |
498 | { |
2ec14aec |
499 | int vol = currentConfig.volume; |
500 | if (events & 0x2000) { |
501 | if (vol < 100) vol++; |
502 | } else { |
503 | if (vol > 0) vol--; |
504 | } |
fa283c9a |
505 | FrameworkAudio_SetVolume(vol, vol); |
c77ca79e |
506 | sprintf(noticeMsg, "VOL: %02i ", vol); |
2ec14aec |
507 | noticeMsgTime = GetTickCount(); |
508 | currentConfig.volume = vol; |
509 | } |
510 | |
511 | events &= ~prevEvents; |
9839d126 |
512 | if (events) RunEvents(events); |
2ec14aec |
513 | if (movie_data) emu_updateMovie(); |
514 | |
515 | prevEvents = (allActions[0] | allActions[1]) >> 16; |
ea8c405f |
516 | } |
517 | |
fa283c9a |
518 | static void find_combos(void) |
519 | { |
520 | int act, u; |
521 | |
522 | // find out which keys and actions are combos |
523 | combo_keys = combo_acts = 0; |
524 | for (act = 0; act < 32; act++) |
525 | { |
1f4e9f14 |
526 | int keyc = 0, keyc2 = 0; |
fa283c9a |
527 | if (act == 16 || act == 17) continue; // player2 flag |
1f4e9f14 |
528 | if (act > 17) |
fa283c9a |
529 | { |
1f4e9f14 |
530 | for (u = 0; u < 32; u++) |
531 | if (currentConfig.KeyBinds[u] & (1 << act)) keyc++; |
532 | } |
533 | else |
534 | { |
535 | for (u = 0; u < 32; u++) |
536 | if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1 |
537 | (currentConfig.KeyBinds[u] & (1 << act))) keyc++; |
538 | for (u = 0; u < 32; u++) |
539 | if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2 |
540 | (currentConfig.KeyBinds[u] & (1 << act))) keyc2++; |
541 | if (keyc2 > keyc) keyc = keyc2; |
fa283c9a |
542 | } |
543 | if (keyc > 1) |
544 | { |
545 | // loop again and mark those keys and actions as combo |
546 | for (u = 0; u < 32; u++) |
547 | { |
548 | if (currentConfig.KeyBinds[u] & (1 << act)) { |
549 | combo_keys |= 1 << u; |
550 | combo_acts |= 1 << act; |
551 | } |
552 | } |
553 | } |
554 | } |
555 | } |
556 | |
557 | |
ea8c405f |
558 | static void simpleWait(DWORD until) |
559 | { |
9839d126 |
560 | DWORD tval; |
561 | int diff; |
562 | |
563 | tval = GetTickCount(); |
564 | diff = (int)until - (int)tval; |
565 | if (diff >= 2) |
566 | Sleep(diff - 1); |
567 | |
568 | while ((tval = GetTickCount()) < until && until - tval < 512) // some simple overflow detection |
569 | spend_cycles(1024*2); |
ea8c405f |
570 | } |
571 | |
572 | void emu_Loop(void) |
573 | { |
fa283c9a |
574 | static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0; |
ea8c405f |
575 | char fpsbuff[24]; // fps count c string |
576 | DWORD tval, tval_prev = 0, tval_thissec = 0; // timing |
fa283c9a |
577 | int frames_done = 0, frames_shown = 0, oldmodes = 0, sec_ms = 1000; |
ea8c405f |
578 | int target_fps, target_frametime, lim_time, tval_diff, i; |
579 | char *notice = NULL; |
580 | |
581 | lprintf("entered emu_Loop()\n"); |
582 | |
583 | fpsbuff[0] = 0; |
584 | |
585 | // make sure we are in correct mode |
586 | vidResetMode(); |
587 | if (currentConfig.scaling) PicoOpt|=0x4000; |
588 | else PicoOpt&=~0x4000; |
589 | Pico.m.dirtyPal = 1; |
590 | oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc; |
fa283c9a |
591 | find_combos(); |
ea8c405f |
592 | |
593 | // pal/ntsc might have changed, reset related stuff |
594 | target_fps = Pico.m.pal ? 50 : 60; |
fa283c9a |
595 | target_frametime = Pico.m.pal ? (1000<<8)/50 : (1000<<8)/60+1; |
ea8c405f |
596 | reset_timing = 1; |
597 | |
fa283c9a |
598 | // prepare CD buffer |
599 | if (PicoMCD & 1) PicoCDBufferInit(); |
600 | |
ea8c405f |
601 | // prepare sound stuff |
fa283c9a |
602 | PsndOut = NULL; |
603 | if (currentConfig.EmuOpt & 4) |
604 | { |
da42200b |
605 | int ret, snd_excess_add, stereo; |
ea8c405f |
606 | if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) { |
9d917eea |
607 | PsndRerate(Pico.m.frame_count ? 1 : 0); |
ea8c405f |
608 | } |
da42200b |
609 | stereo=(PicoOpt&8)>>3; |
ea8c405f |
610 | snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps; |
fa283c9a |
611 | snd_cbuf_samples = (PsndRate<<stereo) * 16 / target_fps; |
ea8c405f |
612 | lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n", |
f3d1de29 |
613 | PsndRate, PsndLen, snd_excess_add, stereo, Pico.m.pal); |
fa283c9a |
614 | ret = FrameworkAudio_Init(PsndRate, snd_cbuf_samples, stereo); |
615 | if (ret != 0) { |
616 | lprintf("FrameworkAudio_Init() failed: %i\n", ret); |
617 | sprintf(noticeMsg, "sound init failed (%i), snd disabled", ret); |
618 | noticeMsgTime = GetTickCount(); |
619 | currentConfig.EmuOpt &= ~4; |
620 | } else { |
621 | FrameworkAudio_SetVolume(currentConfig.volume, currentConfig.volume); |
622 | PicoWriteSound = updateSound; |
623 | snd_cbuff = FrameworkAudio_56448Buffer(); |
624 | PsndOut = snd_cbuff + snd_cbuf_samples / 2; // start writing at the middle |
625 | snd_all_samples = 0; |
626 | PsndRate_old = PsndRate; |
627 | PicoOpt_old = PicoOpt; |
628 | pal_old = Pico.m.pal; |
629 | } |
ea8c405f |
630 | } |
631 | |
ea8c405f |
632 | // loop? |
633 | while (engineState == PGS_Running) |
634 | { |
635 | int modes; |
636 | |
637 | tval = GetTickCount(); |
638 | if (reset_timing || tval < tval_prev) { |
da42200b |
639 | //stdbg("timing reset"); |
ea8c405f |
640 | reset_timing = 0; |
641 | tval_thissec = tval; |
642 | frames_shown = frames_done = 0; |
643 | } |
644 | |
645 | // show notice message? |
646 | if (noticeMsgTime) { |
647 | static int noticeMsgSum; |
648 | if (tval - noticeMsgTime > 2000) { // > 2.0 sec |
649 | noticeMsgTime = 0; |
650 | clearArea(0); |
651 | notice = 0; |
652 | } else { |
653 | int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2]; |
654 | if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; } |
655 | notice = noticeMsg; |
656 | } |
657 | } |
658 | |
659 | // check for mode changes |
660 | modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8); |
661 | if (modes != oldmodes) { |
ea8c405f |
662 | oldmodes = modes; |
663 | clearArea(1); |
664 | } |
665 | |
666 | // second passed? |
fa283c9a |
667 | if (tval - tval_thissec >= sec_ms) |
ea8c405f |
668 | { |
669 | #ifdef BENCHMARK |
670 | static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4]; |
671 | if(++bench == 10) { |
672 | bench = 0; |
673 | bench_fps_s = bench_fps; |
674 | bf[bfp++ & 3] = bench_fps; |
675 | bench_fps = 0; |
676 | } |
677 | bench_fps += frames_shown; |
678 | sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2); |
679 | #else |
680 | if(currentConfig.EmuOpt & 2) |
681 | sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done); |
682 | #endif |
fa283c9a |
683 | //tval_thissec += 1000; |
684 | tval_thissec += sec_ms; |
ea8c405f |
685 | |
fa283c9a |
686 | if (PsndOut != NULL) |
687 | { |
f3d1de29 |
688 | /* some code which tries to sync things to audio clock, the dirty way */ |
689 | static int audio_skew_prev = 0; |
690 | int audio_skew, adj, co = 9, shift = 7; |
fa283c9a |
691 | audio_skew = snd_all_samples*2 - FrameworkAudio_BufferPos(); |
f3d1de29 |
692 | if (PsndRate == 22050) co = 10; |
693 | if (PsndRate > 22050) co = 11; |
694 | if (PicoOpt&8) shift++; |
695 | if (audio_skew < 0) { |
696 | adj = -((-audio_skew) >> shift); |
697 | if (audio_skew > -(6<<co)) adj>>=1; |
698 | if (audio_skew > -(4<<co)) adj>>=1; |
699 | if (audio_skew > -(2<<co)) adj>>=1; |
700 | if (audio_skew > audio_skew_prev) adj>>=2; // going up already |
701 | } else { |
702 | adj = audio_skew >> shift; |
703 | if (audio_skew < (6<<co)) adj>>=1; |
704 | if (audio_skew < (4<<co)) adj>>=1; |
705 | if (audio_skew < (2<<co)) adj>>=1; |
706 | if (audio_skew < audio_skew_prev) adj>>=2; |
707 | } |
708 | audio_skew_prev = audio_skew; |
fa283c9a |
709 | target_frametime += adj; |
710 | sec_ms = (target_frametime * target_fps) >> 8; |
da42200b |
711 | //stdbg("%i %i %i", audio_skew, adj, sec_ms); |
ea8c405f |
712 | frames_done = frames_shown = 0; |
fa283c9a |
713 | } |
714 | else if (currentConfig.Frameskip < 0) { |
ea8c405f |
715 | frames_done -= target_fps; if (frames_done < 0) frames_done = 0; |
716 | frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0; |
717 | if (frames_shown > frames_done) frames_shown = frames_done; |
fa283c9a |
718 | } else { |
719 | frames_done = frames_shown = 0; |
ea8c405f |
720 | } |
721 | } |
722 | #ifdef PFRAMES |
723 | sprintf(fpsbuff, "%i", Pico.m.frame_count); |
724 | #endif |
725 | |
726 | tval_prev = tval; |
727 | lim_time = (frames_done+1) * target_frametime; |
728 | if (currentConfig.Frameskip >= 0) // frameskip enabled |
729 | { |
730 | for (i = 0; i < currentConfig.Frameskip; i++) { |
731 | updateKeys(); |
fa283c9a |
732 | SkipFrame(); frames_done++; |
ea8c405f |
733 | if (PsndOut) { // do framelimitting if sound is enabled |
734 | int tval_diff; |
735 | tval = GetTickCount(); |
736 | tval_diff = (int)(tval - tval_thissec) << 8; |
737 | if (tval_diff < lim_time) // we are too fast |
738 | simpleWait(tval + ((lim_time - tval_diff)>>8)); |
739 | } |
740 | lim_time += target_frametime; |
741 | } |
742 | } |
743 | else // auto frameskip |
744 | { |
745 | int tval_diff; |
746 | tval = GetTickCount(); |
747 | tval_diff = (int)(tval - tval_thissec) << 8; |
748 | if (tval_diff > lim_time) |
749 | { |
750 | // no time left for this frame - skip |
751 | if (tval_diff - lim_time >= (300<<8)) { |
752 | /* something caused a slowdown for us (disk access? cache flush?) |
753 | * try to recover by resetting timing... */ |
754 | reset_timing = 1; |
755 | continue; |
756 | } |
757 | updateKeys(); |
fa283c9a |
758 | SkipFrame(); frames_done++; |
ea8c405f |
759 | continue; |
760 | } |
761 | } |
762 | |
763 | updateKeys(); |
764 | |
c77ca79e |
765 | if (currentConfig.EmuOpt&0x80) |
766 | /* be sure correct framebuffer is locked */ |
767 | giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1); |
768 | |
499a0be3 |
769 | if (!(PicoOpt&0x10)) |
770 | PicoScan((unsigned) -1, NULL); |
ea8c405f |
771 | |
772 | PicoFrame(); |
499a0be3 |
773 | |
774 | if (giz_screen == NULL) |
c77ca79e |
775 | giz_screen = Framework2D_LockBuffer((currentConfig.EmuOpt&0x8000) ? 0 : 1); |
499a0be3 |
776 | |
ea8c405f |
777 | blit(fpsbuff, notice); |
778 | |
779 | if (giz_screen != NULL) { |
780 | Framework2D_UnlockBuffer(); |
781 | giz_screen = NULL; |
782 | } |
783 | |
c77ca79e |
784 | if (currentConfig.EmuOpt&0x2000) |
785 | Framework2D_WaitVSync(); |
786 | |
787 | if (currentConfig.EmuOpt&0x8000) |
788 | Framework2D_Flip(); |
789 | |
ea8c405f |
790 | // check time |
791 | tval = GetTickCount(); |
792 | tval_diff = (int)(tval - tval_thissec) << 8; |
793 | |
794 | if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300<<8)) // slowdown detection |
795 | reset_timing = 1; |
796 | else if (PsndOut != NULL || currentConfig.Frameskip < 0) |
797 | { |
798 | // sleep if we are still too fast |
799 | if (tval_diff < lim_time) |
800 | { |
801 | // we are too fast |
802 | simpleWait(tval + ((lim_time - tval_diff) >> 8)); |
803 | } |
804 | } |
805 | |
806 | frames_done++; frames_shown++; |
807 | } |
808 | |
809 | |
810 | if (PicoMCD & 1) PicoCDBufferFree(); |
811 | |
fa283c9a |
812 | if (PsndOut != NULL) { |
813 | PsndOut = snd_cbuff = NULL; |
814 | FrameworkAudio_Close(); |
815 | } |
816 | |
ea8c405f |
817 | // save SRAM |
818 | if ((currentConfig.EmuOpt & 1) && SRam.changed) { |
c77ca79e |
819 | emu_stateCb("Writing SRAM/BRAM.."); |
ea8c405f |
820 | emu_SaveLoadGame(0, 1); |
821 | SRam.changed = 0; |
822 | } |
823 | } |
824 | |
825 | |
826 | void emu_ResetGame(void) |
827 | { |
828 | PicoReset(0); |
829 | reset_timing = 1; |
830 | } |
e5f426aa |
831 | |