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