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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 "../common/config.h" |
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14 | #include "emu.h" |
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15 | #include "menu.h" |
16 | #include "giz.h" |
17 | #include "asm_utils.h" |
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18 | |
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19 | #include <pico/pico_int.h> |
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20 | |
21 | #ifdef BENCHMARK |
22 | #define OSD_FPS_X 220 |
23 | #else |
24 | #define OSD_FPS_X 260 |
25 | #endif |
26 | |
27 | // main 300K gfx-related buffer. Used by menu and renderers. |
28 | unsigned char gfx_buffer[321*240*2*2]; |
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29 | |
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30 | unsigned char *PicoDraw2FB = gfx_buffer; // temporary buffer for alt renderer ( (8+320)*(8+240+8) ) |
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31 | int reset_timing = 0; |
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32 | |
33 | static DWORD noticeMsgTime = 0; |
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34 | static short *snd_cbuff = NULL; |
35 | static int snd_cbuf_samples = 0, snd_all_samples = 0; |
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36 | |
37 | |
38 | static void blit(const char *fps, const char *notice); |
39 | static void clearArea(int full); |
40 | |
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41 | void plat_status_msg(const char *format, ...) |
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42 | { |
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43 | /* TODO */ |
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44 | noticeMsgTime = GetTickCount(); |
45 | } |
46 | |
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47 | int emu_getMainDir(char *dst, int len) |
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48 | { |
49 | if (len > 0) *dst = 0; |
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50 | |
51 | return 0; |
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52 | } |
53 | |
54 | static void emu_msg_cb(const char *msg) |
55 | { |
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56 | if (giz_screen != NULL) fb_unlock(); |
57 | giz_screen = fb_lock(1); |
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58 | |
59 | memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); |
60 | emu_textOut16(4, 232, msg); |
61 | noticeMsgTime = GetTickCount() - 2000; |
62 | |
63 | /* assumption: emu_msg_cb gets called only when something slow is about to happen */ |
64 | reset_timing = 1; |
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65 | |
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66 | fb_unlock(); |
67 | giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1); |
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68 | } |
69 | |
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70 | void emu_stateCb(const char *str) |
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71 | { |
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72 | if (giz_screen != NULL) fb_unlock(); |
73 | giz_screen = fb_lock(1); |
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74 | |
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75 | clearArea(0); |
76 | blit("", str); |
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77 | |
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78 | fb_unlock(); |
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79 | giz_screen = NULL; |
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80 | |
81 | Sleep(0); /* yield the CPU, the system may need it */ |
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82 | } |
83 | |
84 | static void emu_msg_tray_open(void) |
85 | { |
86 | strcpy(noticeMsg, "CD tray opened"); |
87 | noticeMsgTime = GetTickCount(); |
88 | } |
89 | |
90 | |
91 | void emu_Init(void) |
92 | { |
93 | // make dirs for saves, cfgs, etc. |
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94 | mkdir("mds", 0777); |
95 | mkdir("srm", 0777); |
96 | mkdir("brm", 0777); |
97 | mkdir("cfg", 0777); |
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98 | |
99 | PicoInit(); |
100 | PicoMessage = emu_msg_cb; |
101 | PicoMCDopenTray = emu_msg_tray_open; |
102 | PicoMCDcloseTray = menu_loop_tray; |
103 | } |
104 | |
105 | void emu_Deinit(void) |
106 | { |
107 | // save SRAM |
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108 | if ((currentConfig.EmuOpt & 1) && SRam.changed) { |
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109 | emu_SaveLoadGame(0, 1); |
110 | SRam.changed = 0; |
111 | } |
112 | |
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113 | if (!(currentConfig.EmuOpt & 0x20)) |
114 | config_writelrom(PicoConfigFile); |
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115 | |
116 | PicoExit(); |
117 | } |
118 | |
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119 | void emu_prepareDefaultConfig(void) |
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120 | { |
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121 | memset(&defaultConfig, 0, sizeof(defaultConfig)); |
122 | defaultConfig.EmuOpt = 0x1d | 0x680; // | confirm_save, cd_leds, 16bit rend |
123 | defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES; |
124 | defaultConfig.s_PsndRate = 22050; |
125 | defaultConfig.s_PicoRegion = 0; // auto |
126 | defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP |
127 | defaultConfig.s_PicoCDBuffers = 0; |
128 | defaultConfig.Frameskip = -1; // auto |
129 | defaultConfig.volume = 50; |
130 | defaultConfig.KeyBinds[ 2] = 1<<0; // SACB RLDU |
131 | defaultConfig.KeyBinds[ 3] = 1<<1; |
132 | defaultConfig.KeyBinds[ 0] = 1<<2; |
133 | defaultConfig.KeyBinds[ 1] = 1<<3; |
134 | defaultConfig.KeyBinds[ 5] = 1<<4; |
135 | defaultConfig.KeyBinds[ 6] = 1<<5; |
136 | defaultConfig.KeyBinds[ 7] = 1<<6; |
137 | defaultConfig.KeyBinds[ 4] = 1<<7; |
138 | defaultConfig.KeyBinds[13] = 1<<26; // switch rend |
139 | defaultConfig.KeyBinds[ 8] = 1<<27; // save state |
140 | defaultConfig.KeyBinds[ 9] = 1<<28; // load state |
141 | defaultConfig.KeyBinds[12] = 1<<29; // vol up |
142 | defaultConfig.KeyBinds[11] = 1<<30; // vol down |
143 | defaultConfig.scaling = 0; |
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144 | defaultConfig.turbo_rate = 15; |
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145 | } |
146 | |
147 | |
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148 | static int EmuScanBegin16(unsigned int num) |
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149 | { |
150 | if (!(Pico.video.reg[1]&8)) num += 8; |
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151 | DrawLineDest = (unsigned short *) giz_screen + 321 * num; |
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152 | |
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153 | if ((currentConfig.EmuOpt&0x4000) && (num&1) == 0) // (Pico.m.frame_count&1)) |
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154 | return 1; // skip next line |
155 | |
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156 | return 0; |
157 | } |
158 | |
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159 | static int EmuScanBegin8(unsigned int num) |
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160 | { |
161 | // draw like the fast renderer |
162 | if (!(Pico.video.reg[1]&8)) num += 8; |
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163 | HighCol = gfx_buffer + 328 * num; |
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164 | |
165 | return 0; |
166 | } |
167 | |
168 | static void osd_text(int x, int y, const char *text) |
169 | { |
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170 | int len = strlen(text) * 8 / 2; |
171 | int *p, h; |
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172 | for (h = 0; h < 8; h++) { |
173 | p = (int *) ((unsigned short *) giz_screen+x+321*(y+h)); |
174 | p = (int *) ((int)p & ~3); // align |
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175 | memset32(p, 0, len); |
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176 | } |
177 | emu_textOut16(x, y, text); |
178 | } |
179 | |
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180 | /* |
181 | void log1(void *p1, void *p2) |
182 | { |
183 | lprintf("%p %p %p\n", p1, p2, DrawLineDest); |
184 | } |
185 | */ |
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186 | |
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187 | static void cd_leds(void) |
188 | { |
189 | static int old_reg = 0; |
190 | unsigned int col_g, col_r, *p; |
191 | |
192 | if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change |
193 | old_reg = Pico_mcd->s68k_regs[0]; |
194 | |
195 | p = (unsigned int *)((short *)giz_screen + 321*2+4+2); |
196 | col_g = (old_reg & 2) ? 0x06000600 : 0; |
197 | col_r = (old_reg & 1) ? 0xc000c000 : 0; |
198 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 321/2 - 12/2 + 1; |
199 | *p++ = col_g; p+=3; *p++ = col_r; p += 321/2 - 10/2; |
200 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; |
201 | } |
202 | |
203 | |
204 | static short localPal[0x100]; |
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205 | |
206 | static void blit(const char *fps, const char *notice) |
207 | { |
208 | int emu_opt = currentConfig.EmuOpt; |
209 | |
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210 | if (PicoOpt&0x10) |
211 | { |
212 | int lines_flags = 224; |
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213 | // 8bit fast renderer |
214 | if (Pico.m.dirtyPal) { |
215 | Pico.m.dirtyPal = 0; |
216 | vidConvCpyRGB565(localPal, Pico.cram, 0x40); |
217 | } |
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218 | // a hack for VR |
219 | if (PicoRead16Hook == PicoSVPRead16) |
220 | memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328); |
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221 | if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000; |
222 | if (currentConfig.EmuOpt&0x4000) |
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223 | lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000; |
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224 | vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags); |
225 | } |
226 | else if (!(emu_opt&0x80)) |
227 | { |
228 | int lines_flags; |
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229 | // 8bit accurate renderer |
230 | if (Pico.m.dirtyPal) { |
231 | Pico.m.dirtyPal = 0; |
232 | vidConvCpyRGB565(localPal, Pico.cram, 0x40); |
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233 | if (Pico.video.reg[0xC]&8) { // shadow/hilight mode |
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234 | //vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40); |
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235 | //vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40); // TODO? |
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236 | memcpy32((void *)(localPal+0xc0), (void *)(localPal+0x40), 0x40*2/4); |
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237 | localPal[0xc0] = 0x0600; |
238 | localPal[0xd0] = 0xc000; |
239 | localPal[0xe0] = 0x0000; // reserved pixels for OSD |
240 | localPal[0xf0] = 0xffff; |
241 | } |
242 | /* no support |
243 | else if (rendstatus & 0x20) { // mid-frame palette changes |
244 | vidConvCpyRGB565(localPal+0x40, HighPal, 0x40); |
245 | vidConvCpyRGB565(localPal+0x80, HighPal+0x40, 0x40); |
246 | } */ |
247 | } |
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248 | lines_flags = (Pico.video.reg[1]&8) ? 240 : 224; |
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249 | if (!(Pico.video.reg[12]&1)) lines_flags|=0x10000; |
250 | if (currentConfig.EmuOpt&0x4000) |
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251 | lines_flags|=0x40000; // (Pico.m.frame_count&1)?0x20000:0x40000; |
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252 | vidCpy8to16((unsigned short *)giz_screen+321*8, PicoDraw2FB+328*8, localPal, lines_flags); |
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253 | } |
254 | |
255 | if (notice || (emu_opt & 2)) { |
256 | int h = 232; |
257 | if (notice) osd_text(4, h, notice); |
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258 | if (emu_opt & 2) osd_text(OSD_FPS_X, h, fps); |
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259 | } |
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260 | |
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261 | if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD)) |
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262 | cd_leds(); |
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263 | } |
264 | |
265 | // clears whole screen or just the notice area (in all buffers) |
266 | static void clearArea(int full) |
267 | { |
268 | if (giz_screen == NULL) |
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269 | giz_screen = fb_lock(1); |
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270 | if (full) memset32(giz_screen, 0, 320*240*2/4); |
499a0be3 |
271 | else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); |
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272 | |
273 | if (currentConfig.EmuOpt&0x8000) { |
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274 | fb_unlock(); |
275 | giz_screen = fb_lock(0); |
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276 | if (full) memset32(giz_screen, 0, 320*240*2/4); |
277 | else memset32((int *)((char *)giz_screen + 321*232*2), 0, 321*8*2/4); |
278 | } |
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279 | } |
280 | |
281 | static void vidResetMode(void) |
282 | { |
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283 | giz_screen = fb_lock(1); |
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284 | |
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285 | if (PicoOpt&0x10) { |
286 | } else if (currentConfig.EmuOpt&0x80) { |
287 | PicoDrawSetColorFormat(1); |
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288 | PicoScanBegin = EmuScanBegin16; |
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289 | } else { |
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290 | PicoDrawSetColorFormat(-1); |
602133e1 |
291 | PicoScanBegin = EmuScanBegin8; |
ea8c405f |
292 | } |
499a0be3 |
293 | if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) { |
ea8c405f |
294 | // setup pal for 8-bit modes |
295 | localPal[0xc0] = 0x0600; |
296 | localPal[0xd0] = 0xc000; |
297 | localPal[0xe0] = 0x0000; // reserved pixels for OSD |
298 | localPal[0xf0] = 0xffff; |
299 | } |
300 | Pico.m.dirtyPal = 1; |
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301 | |
302 | memset32(giz_screen, 0, 321*240*2/4); |
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303 | if (currentConfig.EmuOpt&0x8000) { |
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304 | fb_unlock(); |
305 | giz_screen = fb_lock(0); |
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306 | memset32(giz_screen, 0, 321*240*2/4); |
307 | } |
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308 | fb_unlock(); |
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309 | giz_screen = NULL; |
310 | } |
311 | |
da42200b |
312 | /* |
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313 | #include <stdarg.h> |
314 | static void stdbg(const char *fmt, ...) |
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315 | { |
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316 | static int cnt = 0; |
317 | va_list vl; |
318 | |
319 | sprintf(noticeMsg, "%x ", cnt++); |
320 | va_start(vl, fmt); |
321 | vsnprintf(noticeMsg+strlen(noticeMsg), sizeof(noticeMsg)-strlen(noticeMsg), fmt, vl); |
322 | va_end(vl); |
323 | |
324 | noticeMsgTime = GetTickCount(); |
325 | } |
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326 | */ |
fa283c9a |
327 | |
328 | static void updateSound(int len) |
329 | { |
330 | if (PicoOpt&8) len<<=1; |
331 | |
332 | snd_all_samples += len; |
333 | PsndOut += len; |
334 | if (PsndOut - snd_cbuff >= snd_cbuf_samples) |
335 | { |
da42200b |
336 | //if (PsndOut - snd_cbuff != snd_cbuf_samples) |
337 | // stdbg("snd diff is %i, not %i", PsndOut - snd_cbuff, snd_cbuf_samples); |
fa283c9a |
338 | PsndOut = snd_cbuff; |
339 | } |
340 | } |
341 | |
342 | |
343 | static void SkipFrame(void) |
344 | { |
345 | PicoSkipFrame=1; |
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346 | PicoFrame(); |
347 | PicoSkipFrame=0; |
348 | } |
349 | |
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350 | /* forced frame to front buffer */ |
0fc0e241 |
351 | void emu_forcedFrame(int opts) |
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352 | { |
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353 | int po_old = PicoOpt; |
354 | int eo_old = currentConfig.EmuOpt; |
355 | |
0fc0e241 |
356 | PicoOpt &= ~0x10; |
357 | PicoOpt |= opts|POPT_ACC_SPRITES; |
fa283c9a |
358 | currentConfig.EmuOpt |= 0x80; |
359 | |
360 | if (giz_screen == NULL) |
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361 | giz_screen = fb_lock(1); |
fa283c9a |
362 | |
363 | PicoDrawSetColorFormat(1); |
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364 | PicoScanBegin = EmuScanBegin16; |
fa283c9a |
365 | Pico.m.dirtyPal = 1; |
366 | PicoFrameDrawOnly(); |
367 | |
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368 | fb_unlock(); |
fa283c9a |
369 | giz_screen = NULL; |
370 | |
371 | PicoOpt = po_old; |
372 | currentConfig.EmuOpt = eo_old; |
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373 | } |
374 | |
fa283c9a |
375 | |
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376 | static void RunEvents(unsigned int which) |
377 | { |
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378 | if (which & 0x1800) // save or load (but not both) |
379 | { |
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380 | int do_it = 1; |
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381 | |
382 | if (PsndOut != NULL) |
383 | FrameworkAudio_SetPause(1); |
384 | if (giz_screen == NULL) |
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385 | giz_screen = fb_lock(1); |
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386 | if ( emu_checkSaveFile(state_slot) && |
a8869ad1 |
387 | (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load |
388 | (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save |
389 | { |
9839d126 |
390 | int keys; |
391 | blit("", (which & 0x1000) ? "LOAD STATE? (PLAY=yes, STOP=no)" : "OVERWRITE SAVE? (PLAY=yes, STOP=no)"); |
e5ab6faf |
392 | while( !((keys = Framework_PollGetButtons()) & (PBTN_PLAY|PBTN_STOP)) ) |
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393 | Sleep(50); |
e5ab6faf |
394 | if (keys & PBTN_STOP) do_it = 0; |
395 | while( ((keys = Framework_PollGetButtons()) & (PBTN_PLAY|PBTN_STOP)) ) // wait for release |
da42200b |
396 | Sleep(50); |
9839d126 |
397 | clearArea(0); |
398 | } |
da42200b |
399 | |
400 | if (do_it) |
401 | { |
9839d126 |
402 | osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME"); |
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403 | PicoStateProgressCB = emu_stateCb; |
9839d126 |
404 | emu_SaveLoadGame((which & 0x1000) >> 12, 0); |
405 | PicoStateProgressCB = NULL; |
da42200b |
406 | Sleep(0); |
9839d126 |
407 | } |
408 | |
da42200b |
409 | if (PsndOut != NULL) |
410 | FrameworkAudio_SetPause(0); |
9839d126 |
411 | reset_timing = 1; |
412 | } |
da42200b |
413 | if (which & 0x0400) // switch renderer |
414 | { |
a8869ad1 |
415 | if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; } |
416 | else { PicoOpt|= 0x10; currentConfig.EmuOpt &= ~0x80; } |
9839d126 |
417 | |
418 | vidResetMode(); |
419 | |
420 | if (PicoOpt&0x10) { |
421 | strcpy(noticeMsg, " 8bit fast renderer"); |
422 | } else if (currentConfig.EmuOpt&0x80) { |
423 | strcpy(noticeMsg, "16bit accurate renderer"); |
424 | } else { |
425 | strcpy(noticeMsg, " 8bit accurate renderer"); |
426 | } |
427 | |
428 | noticeMsgTime = GetTickCount(); |
429 | } |
da42200b |
430 | if (which & 0x0300) |
431 | { |
9839d126 |
432 | if(which&0x0200) { |
433 | state_slot -= 1; |
434 | if(state_slot < 0) state_slot = 9; |
435 | } else { |
436 | state_slot += 1; |
437 | if(state_slot > 9) state_slot = 0; |
438 | } |
439 | sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE"); |
440 | noticeMsgTime = GetTickCount(); |
441 | } |
442 | } |
443 | |
ea8c405f |
444 | static void updateKeys(void) |
445 | { |
2ec14aec |
446 | unsigned int keys, allActions[2] = { 0, 0 }, events; |
447 | static unsigned int prevEvents = 0; |
448 | int i; |
449 | |
d34a42f9 |
450 | /* FIXME: port to input fw, merge with emu.c:emu_update_input() */ |
2ec14aec |
451 | keys = Framework_PollGetButtons(); |
e5ab6faf |
452 | if (keys & PBTN_HOME) |
2ec14aec |
453 | engineState = PGS_Menu; |
2ec14aec |
454 | |
455 | keys &= CONFIGURABLE_KEYS; |
456 | |
f0f0d2df |
457 | PicoPad[0] = allActions[0] & 0xfff; |
458 | PicoPad[1] = allActions[1] & 0xfff; |
459 | |
460 | if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]); |
461 | if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]); |
2ec14aec |
462 | |
463 | events = (allActions[0] | allActions[1]) >> 16; |
464 | |
465 | // volume is treated in special way and triggered every frame |
fa283c9a |
466 | if ((events & 0x6000) && PsndOut != NULL) |
467 | { |
2ec14aec |
468 | int vol = currentConfig.volume; |
469 | if (events & 0x2000) { |
470 | if (vol < 100) vol++; |
471 | } else { |
472 | if (vol > 0) vol--; |
473 | } |
fa283c9a |
474 | FrameworkAudio_SetVolume(vol, vol); |
c77ca79e |
475 | sprintf(noticeMsg, "VOL: %02i ", vol); |
2ec14aec |
476 | noticeMsgTime = GetTickCount(); |
477 | currentConfig.volume = vol; |
478 | } |
479 | |
480 | events &= ~prevEvents; |
9839d126 |
481 | if (events) RunEvents(events); |
2ec14aec |
482 | if (movie_data) emu_updateMovie(); |
483 | |
484 | prevEvents = (allActions[0] | allActions[1]) >> 16; |
ea8c405f |
485 | } |
486 | |
84100c0f |
487 | void emu_platformDebugCat(char *str) |
488 | { |
489 | // nothing |
490 | } |
fa283c9a |
491 | |
ea8c405f |
492 | static void simpleWait(DWORD until) |
493 | { |
9839d126 |
494 | DWORD tval; |
495 | int diff; |
496 | |
497 | tval = GetTickCount(); |
498 | diff = (int)until - (int)tval; |
499 | if (diff >= 2) |
500 | Sleep(diff - 1); |
501 | |
502 | while ((tval = GetTickCount()) < until && until - tval < 512) // some simple overflow detection |
503 | spend_cycles(1024*2); |
ea8c405f |
504 | } |
505 | |
506 | void emu_Loop(void) |
507 | { |
fa283c9a |
508 | static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0; |
ea8c405f |
509 | char fpsbuff[24]; // fps count c string |
510 | DWORD tval, tval_prev = 0, tval_thissec = 0; // timing |
fa283c9a |
511 | int frames_done = 0, frames_shown = 0, oldmodes = 0, sec_ms = 1000; |
ea8c405f |
512 | int target_fps, target_frametime, lim_time, tval_diff, i; |
513 | char *notice = NULL; |
514 | |
515 | lprintf("entered emu_Loop()\n"); |
516 | |
517 | fpsbuff[0] = 0; |
518 | |
519 | // make sure we are in correct mode |
520 | vidResetMode(); |
521 | if (currentConfig.scaling) PicoOpt|=0x4000; |
522 | else PicoOpt&=~0x4000; |
523 | Pico.m.dirtyPal = 1; |
524 | oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc; |
ea8c405f |
525 | |
526 | // pal/ntsc might have changed, reset related stuff |
527 | target_fps = Pico.m.pal ? 50 : 60; |
fa283c9a |
528 | target_frametime = Pico.m.pal ? (1000<<8)/50 : (1000<<8)/60+1; |
ea8c405f |
529 | reset_timing = 1; |
530 | |
fa283c9a |
531 | // prepare CD buffer |
602133e1 |
532 | if (PicoAHW & PAHW_MCD) PicoCDBufferInit(); |
fa283c9a |
533 | |
ea8c405f |
534 | // prepare sound stuff |
fa283c9a |
535 | PsndOut = NULL; |
536 | if (currentConfig.EmuOpt & 4) |
537 | { |
da42200b |
538 | int ret, snd_excess_add, stereo; |
ea8c405f |
539 | if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) { |
9d917eea |
540 | PsndRerate(Pico.m.frame_count ? 1 : 0); |
ea8c405f |
541 | } |
da42200b |
542 | stereo=(PicoOpt&8)>>3; |
ea8c405f |
543 | snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps; |
fa283c9a |
544 | snd_cbuf_samples = (PsndRate<<stereo) * 16 / target_fps; |
ea8c405f |
545 | lprintf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n", |
f3d1de29 |
546 | PsndRate, PsndLen, snd_excess_add, stereo, Pico.m.pal); |
fa283c9a |
547 | ret = FrameworkAudio_Init(PsndRate, snd_cbuf_samples, stereo); |
548 | if (ret != 0) { |
549 | lprintf("FrameworkAudio_Init() failed: %i\n", ret); |
550 | sprintf(noticeMsg, "sound init failed (%i), snd disabled", ret); |
551 | noticeMsgTime = GetTickCount(); |
552 | currentConfig.EmuOpt &= ~4; |
553 | } else { |
554 | FrameworkAudio_SetVolume(currentConfig.volume, currentConfig.volume); |
555 | PicoWriteSound = updateSound; |
556 | snd_cbuff = FrameworkAudio_56448Buffer(); |
557 | PsndOut = snd_cbuff + snd_cbuf_samples / 2; // start writing at the middle |
558 | snd_all_samples = 0; |
559 | PsndRate_old = PsndRate; |
560 | PicoOpt_old = PicoOpt; |
561 | pal_old = Pico.m.pal; |
562 | } |
ea8c405f |
563 | } |
564 | |
ea8c405f |
565 | // loop? |
566 | while (engineState == PGS_Running) |
567 | { |
568 | int modes; |
569 | |
570 | tval = GetTickCount(); |
571 | if (reset_timing || tval < tval_prev) { |
da42200b |
572 | //stdbg("timing reset"); |
ea8c405f |
573 | reset_timing = 0; |
574 | tval_thissec = tval; |
575 | frames_shown = frames_done = 0; |
576 | } |
577 | |
578 | // show notice message? |
579 | if (noticeMsgTime) { |
580 | static int noticeMsgSum; |
581 | if (tval - noticeMsgTime > 2000) { // > 2.0 sec |
582 | noticeMsgTime = 0; |
583 | clearArea(0); |
584 | notice = 0; |
585 | } else { |
586 | int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2]; |
587 | if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; } |
588 | notice = noticeMsg; |
589 | } |
590 | } |
591 | |
592 | // check for mode changes |
593 | modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8); |
594 | if (modes != oldmodes) { |
ea8c405f |
595 | oldmodes = modes; |
596 | clearArea(1); |
597 | } |
598 | |
599 | // second passed? |
fa283c9a |
600 | if (tval - tval_thissec >= sec_ms) |
ea8c405f |
601 | { |
602 | #ifdef BENCHMARK |
603 | static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4]; |
604 | if(++bench == 10) { |
605 | bench = 0; |
606 | bench_fps_s = bench_fps; |
607 | bf[bfp++ & 3] = bench_fps; |
608 | bench_fps = 0; |
609 | } |
610 | bench_fps += frames_shown; |
611 | sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2); |
612 | #else |
613 | if(currentConfig.EmuOpt & 2) |
614 | sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done); |
615 | #endif |
fa283c9a |
616 | //tval_thissec += 1000; |
617 | tval_thissec += sec_ms; |
ea8c405f |
618 | |
fa283c9a |
619 | if (PsndOut != NULL) |
620 | { |
f3d1de29 |
621 | /* some code which tries to sync things to audio clock, the dirty way */ |
622 | static int audio_skew_prev = 0; |
623 | int audio_skew, adj, co = 9, shift = 7; |
fa283c9a |
624 | audio_skew = snd_all_samples*2 - FrameworkAudio_BufferPos(); |
f3d1de29 |
625 | if (PsndRate == 22050) co = 10; |
626 | if (PsndRate > 22050) co = 11; |
627 | if (PicoOpt&8) shift++; |
628 | if (audio_skew < 0) { |
629 | adj = -((-audio_skew) >> shift); |
630 | if (audio_skew > -(6<<co)) adj>>=1; |
631 | if (audio_skew > -(4<<co)) adj>>=1; |
632 | if (audio_skew > -(2<<co)) adj>>=1; |
633 | if (audio_skew > audio_skew_prev) adj>>=2; // going up already |
634 | } else { |
635 | adj = audio_skew >> shift; |
636 | if (audio_skew < (6<<co)) adj>>=1; |
637 | if (audio_skew < (4<<co)) adj>>=1; |
638 | if (audio_skew < (2<<co)) adj>>=1; |
639 | if (audio_skew < audio_skew_prev) adj>>=2; |
640 | } |
641 | audio_skew_prev = audio_skew; |
fa283c9a |
642 | target_frametime += adj; |
643 | sec_ms = (target_frametime * target_fps) >> 8; |
da42200b |
644 | //stdbg("%i %i %i", audio_skew, adj, sec_ms); |
ea8c405f |
645 | frames_done = frames_shown = 0; |
fa283c9a |
646 | } |
647 | else if (currentConfig.Frameskip < 0) { |
ea8c405f |
648 | frames_done -= target_fps; if (frames_done < 0) frames_done = 0; |
649 | frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0; |
650 | if (frames_shown > frames_done) frames_shown = frames_done; |
fa283c9a |
651 | } else { |
652 | frames_done = frames_shown = 0; |
ea8c405f |
653 | } |
654 | } |
655 | #ifdef PFRAMES |
656 | sprintf(fpsbuff, "%i", Pico.m.frame_count); |
657 | #endif |
658 | |
659 | tval_prev = tval; |
660 | lim_time = (frames_done+1) * target_frametime; |
661 | if (currentConfig.Frameskip >= 0) // frameskip enabled |
662 | { |
663 | for (i = 0; i < currentConfig.Frameskip; i++) { |
664 | updateKeys(); |
fa283c9a |
665 | SkipFrame(); frames_done++; |
ea8c405f |
666 | if (PsndOut) { // do framelimitting if sound is enabled |
667 | int tval_diff; |
668 | tval = GetTickCount(); |
669 | tval_diff = (int)(tval - tval_thissec) << 8; |
670 | if (tval_diff < lim_time) // we are too fast |
671 | simpleWait(tval + ((lim_time - tval_diff)>>8)); |
672 | } |
673 | lim_time += target_frametime; |
674 | } |
675 | } |
676 | else // auto frameskip |
677 | { |
678 | int tval_diff; |
679 | tval = GetTickCount(); |
680 | tval_diff = (int)(tval - tval_thissec) << 8; |
681 | if (tval_diff > lim_time) |
682 | { |
683 | // no time left for this frame - skip |
684 | if (tval_diff - lim_time >= (300<<8)) { |
685 | /* something caused a slowdown for us (disk access? cache flush?) |
686 | * try to recover by resetting timing... */ |
687 | reset_timing = 1; |
688 | continue; |
689 | } |
690 | updateKeys(); |
fa283c9a |
691 | SkipFrame(); frames_done++; |
ea8c405f |
692 | continue; |
693 | } |
694 | } |
695 | |
696 | updateKeys(); |
697 | |
c77ca79e |
698 | if (currentConfig.EmuOpt&0x80) |
699 | /* be sure correct framebuffer is locked */ |
84100c0f |
700 | giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1); |
c77ca79e |
701 | |
ea8c405f |
702 | PicoFrame(); |
499a0be3 |
703 | |
704 | if (giz_screen == NULL) |
84100c0f |
705 | giz_screen = fb_lock((currentConfig.EmuOpt&0x8000) ? 0 : 1); |
499a0be3 |
706 | |
ea8c405f |
707 | blit(fpsbuff, notice); |
708 | |
709 | if (giz_screen != NULL) { |
84100c0f |
710 | fb_unlock(); |
ea8c405f |
711 | giz_screen = NULL; |
712 | } |
713 | |
c77ca79e |
714 | if (currentConfig.EmuOpt&0x2000) |
715 | Framework2D_WaitVSync(); |
716 | |
717 | if (currentConfig.EmuOpt&0x8000) |
84100c0f |
718 | fb_flip(); |
c77ca79e |
719 | |
ea8c405f |
720 | // check time |
721 | tval = GetTickCount(); |
722 | tval_diff = (int)(tval - tval_thissec) << 8; |
723 | |
724 | if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300<<8)) // slowdown detection |
725 | reset_timing = 1; |
726 | else if (PsndOut != NULL || currentConfig.Frameskip < 0) |
727 | { |
728 | // sleep if we are still too fast |
729 | if (tval_diff < lim_time) |
730 | { |
731 | // we are too fast |
732 | simpleWait(tval + ((lim_time - tval_diff) >> 8)); |
733 | } |
734 | } |
735 | |
736 | frames_done++; frames_shown++; |
737 | } |
738 | |
739 | |
602133e1 |
740 | if (PicoAHW & PAHW_MCD) PicoCDBufferFree(); |
ea8c405f |
741 | |
fa283c9a |
742 | if (PsndOut != NULL) { |
743 | PsndOut = snd_cbuff = NULL; |
744 | FrameworkAudio_Close(); |
745 | } |
746 | |
ea8c405f |
747 | // save SRAM |
748 | if ((currentConfig.EmuOpt & 1) && SRam.changed) { |
c77ca79e |
749 | emu_stateCb("Writing SRAM/BRAM.."); |
ea8c405f |
750 | emu_SaveLoadGame(0, 1); |
751 | SRam.changed = 0; |
752 | } |
753 | } |
754 | |
755 | |
756 | void emu_ResetGame(void) |
757 | { |
1cb1584b |
758 | PicoReset(); |
ea8c405f |
759 | reset_timing = 1; |
760 | } |
e5f426aa |
761 | |