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more unification; replace some magic bits to defines
[libpicofe.git] / gp2x / emu.c
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046c4540 1// (c) Copyright 2006-2009 notaz, All rights reserved.\r
720ee7f6 2// Free for non-commercial use.\r
3\r
4// For commercial use, separate licencing terms must be obtained.\r
5\r
6#include <stdio.h>\r
7#include <stdlib.h>\r
8#include <sys/time.h>\r
4ffd2858 9#include <sys/stat.h>\r
10#include <sys/types.h>\r
720ee7f6 11#include <stdarg.h>\r
12\r
fa5e045b 13#include "plat_gp2x.h"\r
d572cbad 14#include "soc.h"\r
046c4540 15#include "../common/plat.h"\r
82abf46f 16#include "../common/menu.h"\r
c7a4ff64 17#include "../common/arm_utils.h"\r
18#include "../common/fonts.h"\r
f013066e 19#include "../common/emu.h"\r
0ae25549 20#include "../common/config.h"\r
b3972d82 21#include "../linux/sndout_oss.h"\r
049a6b3e 22#include "version.h"\r
720ee7f6 23\r
f11bad75 24#include <pico/pico_int.h>\r
25#include <pico/patch.h>\r
26#include <pico/sound/mix.h>\r
70d2ecc5 27#include <zlib/zlib.h>\r
720ee7f6 28\r
4327ec37 29//#define PFRAMES\r
720ee7f6 30\r
31#ifdef BENCHMARK\r
32#define OSD_FPS_X 220\r
33#else\r
34#define OSD_FPS_X 260\r
35#endif\r
36\r
720ee7f6 37\r
720ee7f6 38extern int crashed_940;\r
39\r
6245d5a0 40static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
720ee7f6 41static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
8f1b51ef 42static int osd_fps_x;\r
720ee7f6 43static int gp2x_old_gamma = 100;\r
388947f3 44static char noticeMsg[40];\r
c7a4ff64 45unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
8f1b51ef 46int reset_timing = 0;\r
720ee7f6 47\r
2b395ee0 48#define PICO_PEN_ADJUST_X 4\r
49#define PICO_PEN_ADJUST_Y 2\r
8a091e48 50static int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
e1cd546f 51\r
f013066e 52static void emu_msg_tray_open(void);\r
720ee7f6 53\r
720ee7f6 54\r
388947f3 55void plat_status_msg(const char *format, ...)\r
720ee7f6 56{\r
388947f3 57 va_list vl;\r
58\r
59 va_start(vl, format);\r
60 vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r
61 va_end(vl);\r
62\r
f013066e 63 gettimeofday(&noticeMsgTime, 0);\r
720ee7f6 64}\r
65\r
36f6fd5a 66int emu_getMainDir(char *dst, int len)\r
25fced50 67{\r
f013066e 68 extern char **g_argv;\r
69 int j;\r
25fced50 70\r
f013066e 71 strncpy(dst, g_argv[0], len);\r
72 len -= 32; // reserve\r
73 if (len < 0) len = 0;\r
74 dst[len] = 0;\r
75 for (j = strlen(dst); j > 0; j--)\r
76 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
36f6fd5a 77\r
78 return j + 1;\r
25fced50 79}\r
80\r
720ee7f6 81void emu_Init(void)\r
82{\r
83 // make temp buffer for alt renderer\r
c7a4ff64 84 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
85 if (!PicoDraw2FB)\r
720ee7f6 86 {\r
c7a4ff64 87 printf("PicoDraw2FB == 0\n");\r
720ee7f6 88 }\r
89\r
4ffd2858 90 // make dirs for saves, cfgs, etc.\r
91 mkdir("mds", 0777);\r
92 mkdir("srm", 0777);\r
93 mkdir("brm", 0777);\r
94 mkdir("cfg", 0777);\r
95\r
720ee7f6 96 PicoInit();\r
388947f3 97 PicoMessage = plat_status_msg_busy_next;\r
5e2e14f2 98 PicoMCDopenTray = emu_msg_tray_open;\r
99 PicoMCDcloseTray = menu_loop_tray;\r
720ee7f6 100}\r
101\r
102\r
f013066e 103static void scaling_update(void)\r
79cad122 104{\r
fa8d1331 105 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);\r
79cad122 106 switch (currentConfig.scaling) {\r
fa8d1331 107 default:break;\r
108 case EOPT_SCALE_HW_H:\r
109 case EOPT_SCALE_HW_HV:\r
110 PicoOpt |= POPT_DIS_32C_BORDER;\r
111 break;\r
112 case EOPT_SCALE_SW_H:\r
113 PicoOpt |= POPT_EN_SOFTSCALE;\r
114 break;\r
79cad122 115 }\r
116}\r
117\r
118\r
720ee7f6 119void emu_Deinit(void)\r
120{\r
121 // save SRAM\r
122 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
123 emu_SaveLoadGame(0, 1);\r
124 SRam.changed = 0;\r
125 }\r
126\r
7f3b59cf 127 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG))\r
128 emu_writelrom();\r
79cad122 129\r
c7a4ff64 130 free(PicoDraw2FB);\r
720ee7f6 131\r
132 PicoExit();\r
720ee7f6 133\r
134 // restore gamma\r
135 if (gp2x_old_gamma != 100)\r
fa5e045b 136 set_lcd_gamma(100, 0);\r
720ee7f6 137}\r
138\r
0ae25549 139void emu_prepareDefaultConfig(void)\r
140{\r
fa8d1331 141 gp2x_soc_t soc;\r
142\r
0ae25549 143 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
fa8d1331 144 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS | 0x600; // | <- confirm_save, cd_leds\r
145 defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;\r
0ae25549 146 defaultConfig.s_PsndRate = 44100;\r
147 defaultConfig.s_PicoRegion = 0; // auto\r
148 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
88bfc63d 149 defaultConfig.s_PicoCDBuffers = 0;\r
0ae25549 150 defaultConfig.Frameskip = -1; // auto\r
fa8d1331 151 defaultConfig.CPUclock = default_cpu_clock;\r
0ae25549 152 defaultConfig.volume = 50;\r
0ae25549 153 defaultConfig.gamma = 100;\r
154 defaultConfig.scaling = 0;\r
6589c840 155 defaultConfig.turbo_rate = 15;\r
fa8d1331 156\r
157 soc = soc_detect();\r
158 if (soc == SOCID_MMSP2)\r
159 defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r
0ae25549 160}\r
161\r
046c4540 162static void osd_text(int x, int y, const char *text)\r
720ee7f6 163{\r
164 int len = strlen(text)*8;\r
e31266dd 165 int *p, i, h, offs;\r
720ee7f6 166\r
167 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
720ee7f6 168 len = (len+3) >> 2;\r
169 for (h = 0; h < 8; h++) {\r
e31266dd 170 offs = (x + g_screen_width * (y+h)) & ~3;\r
171 p = (int *) ((char *)g_screen_ptr + offs);\r
172 for (i = len; i; i--, p++)\r
173 *p = 0xe0e0e0e0;\r
720ee7f6 174 }\r
f013066e 175 emu_textOut8(x, y, text);\r
720ee7f6 176 } else {\r
720ee7f6 177 len = (len+1) >> 1;\r
178 for (h = 0; h < 8; h++) {\r
e31266dd 179 offs = (x + g_screen_width * (y+h)) & ~1;\r
180 p = (int *) ((short *)g_screen_ptr + offs);\r
181 for (i = len; i; i--, p++)\r
182 *p = (*p >> 2) & 0x39e7;\r
720ee7f6 183 }\r
f013066e 184 emu_textOut16(x, y, text);\r
720ee7f6 185 }\r
186}\r
187\r
2b395ee0 188static void draw_cd_leds(void)\r
daf91588 189{\r
8dfb9fd5 190 int old_reg;\r
daf91588 191 old_reg = Pico_mcd->s68k_regs[0];\r
192\r
388947f3 193 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
daf91588 194 // 8-bit modes\r
195 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
196 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
e31266dd 197 *(unsigned int *)((char *)g_screen_ptr + 320*2+ 4) =\r
198 *(unsigned int *)((char *)g_screen_ptr + 320*3+ 4) =\r
199 *(unsigned int *)((char *)g_screen_ptr + 320*4+ 4) = col_g;\r
200 *(unsigned int *)((char *)g_screen_ptr + 320*2+12) =\r
201 *(unsigned int *)((char *)g_screen_ptr + 320*3+12) =\r
202 *(unsigned int *)((char *)g_screen_ptr + 320*4+12) = col_r;\r
daf91588 203 } else {\r
204 // 16-bit modes\r
e31266dd 205 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + 320*2+4);\r
daf91588 206 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
207 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 208 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
209 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
8ede36b9 210 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
daf91588 211 }\r
212}\r
213\r
2b395ee0 214static void draw_pico_ptr(void)\r
215{\r
e31266dd 216 unsigned short *p = (unsigned short *)g_screen_ptr;\r
2b395ee0 217\r
218 // only if pen enabled and for 16bit modes\r
219 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
220\r
221 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
222 p += 32;\r
223\r
224 p += 320 * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
225 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
226 p[0] ^= 0xffff;\r
227 p[319] ^= 0xffff;\r
228 p[320] ^= 0xffff;\r
229 p[321] ^= 0xffff;\r
230 p[640] ^= 0xffff;\r
231}\r
232\r
dd5fd477 233static int EmuScanBegin16(unsigned int num)\r
720ee7f6 234{\r
235 if (!(Pico.video.reg[1]&8)) num += 8;\r
e31266dd 236 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;\r
720ee7f6 237\r
238 return 0;\r
239}\r
240\r
dd5fd477 241static int EmuScanBegin8(unsigned int num)\r
720ee7f6 242{\r
243 if (!(Pico.video.reg[1]&8)) num += 8;\r
e31266dd 244 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;\r
720ee7f6 245\r
246 return 0;\r
247}\r
248\r
e5d315a5 249int localPal[0x100];\r
720ee7f6 250static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
251\r
0805b5b4 252static void blit(const char *fps, const char *notice)\r
720ee7f6 253{\r
daf91588 254 int emu_opt = currentConfig.EmuOpt;\r
255\r
388947f3 256 if (PicoOpt & POPT_ALT_RENDERER)\r
b3818d1e 257 {\r
720ee7f6 258 // 8bit fast renderer\r
259 if (Pico.m.dirtyPal) {\r
260 Pico.m.dirtyPal = 0;\r
261 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
262 // feed new palette to our device\r
263 gp2x_video_setpalette(localPal, 0x40);\r
264 }\r
b3818d1e 265 // a hack for VR\r
266 if (PicoRead16Hook == PicoSVPRead16)\r
267 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
268 // do actual copy\r
e31266dd 269 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r
b3818d1e 270 }\r
388947f3 271 else if (!(emu_opt & EOPT_16BPP))\r
b3818d1e 272 {\r
720ee7f6 273 // 8bit accurate renderer\r
dd5fd477 274 if (Pico.m.dirtyPal)\r
275 {\r
61f66fe0 276 int pallen = 0xc0;\r
720ee7f6 277 Pico.m.dirtyPal = 0;\r
b13a934c 278 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
279 {\r
720ee7f6 280 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
281 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
282 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
67dfdf5f 283 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
b13a934c 284 pallen = 0x100;\r
285 }\r
b13a934c 286 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
720ee7f6 287 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
288 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
289 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
b13a934c 290 }\r
291 else {\r
720ee7f6 292 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
61f66fe0 293 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
720ee7f6 294 }\r
b13a934c 295 if (pallen > 0xc0) {\r
296 localPal[0xc0] = 0x0000c000;\r
297 localPal[0xd0] = 0x00c00000;\r
298 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
299 localPal[0xf0] = 0x00ffffff;\r
300 }\r
301 gp2x_video_setpalette(localPal, pallen);\r
720ee7f6 302 }\r
303 }\r
304\r
79cad122 305 if (notice || (emu_opt & 2)) {\r
306 int h = 232;\r
fa8d1331 307 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
308 h -= 8;\r
309 if (notice)\r
310 osd_text(4, h, notice);\r
79cad122 311 if (emu_opt & 2)\r
312 osd_text(osd_fps_x, h, fps);\r
313 }\r
dd5fd477 314 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
2b395ee0 315 draw_cd_leds();\r
316 if (PicoAHW & PAHW_PICO)\r
317 draw_pico_ptr();\r
720ee7f6 318\r
720ee7f6 319 gp2x_video_flip();\r
320\r
388947f3 321 if (!(PicoOpt & POPT_ALT_RENDERER)) {\r
720ee7f6 322 if (!(Pico.video.reg[1]&8)) {\r
388947f3 323 if (currentConfig.EmuOpt & EOPT_16BPP)\r
e31266dd 324 DrawLineDest = (unsigned short *) g_screen_ptr + 320*8;\r
388947f3 325 else\r
e31266dd 326 DrawLineDest = (unsigned char *) g_screen_ptr + 320*8;\r
720ee7f6 327 } else {\r
e31266dd 328 DrawLineDest = g_screen_ptr;\r
720ee7f6 329 }\r
330 }\r
331}\r
332\r
720ee7f6 333// clears whole screen or just the notice area (in all buffers)\r
334static void clearArea(int full)\r
335{\r
daf91588 336 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
337 // 8-bit renderers\r
338 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
339 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
340 } else {\r
720ee7f6 341 // 16bit accurate renderer\r
342 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
343 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 344 }\r
345}\r
346\r
388947f3 347void plat_status_msg_busy_next(const char *msg)\r
348{\r
349 clearArea(0);\r
350 blit("", msg);\r
351\r
352 /* assumption: msg_busy_next gets called only when\r
353 * something slow is about to happen */\r
354 reset_timing = 1;\r
355}\r
356\r
357void plat_status_msg_busy_first(const char *msg)\r
358{\r
359 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
360 plat_status_msg_busy_next(msg);\r
361}\r
720ee7f6 362\r
363static void vidResetMode(void)\r
364{\r
388947f3 365 if (PicoOpt & POPT_ALT_RENDERER) {\r
720ee7f6 366 gp2x_video_changemode(8);\r
388947f3 367 } else if (currentConfig.EmuOpt & EOPT_16BPP) {\r
13059a60 368 gp2x_video_changemode(16);\r
720ee7f6 369 PicoDrawSetColorFormat(1);\r
dd5fd477 370 PicoScanBegin = EmuScanBegin16;\r
720ee7f6 371 } else {\r
daf91588 372 gp2x_video_changemode(8);\r
373 PicoDrawSetColorFormat(2);\r
dd5fd477 374 PicoScanBegin = EmuScanBegin8;\r
daf91588 375 }\r
388947f3 376 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
daf91588 377 // setup pal for 8-bit modes\r
378 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
379 localPal[0xd0] = 0x00c00000;\r
720ee7f6 380 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
381 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 382 gp2x_video_setpalette(localPal, 0x100);\r
383 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
384 gp2x_video_flip();\r
720ee7f6 385 }\r
386 Pico.m.dirtyPal = 1;\r
387 // reset scaling\r
fa8d1331 388 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
79cad122 389 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
390 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 391}\r
392\r
388947f3 393void plat_video_toggle_renderer(void)\r
dfa4c846 394{\r
388947f3 395 if (PicoOpt & POPT_ALT_RENDERER) {\r
396 PicoOpt &= ~POPT_ALT_RENDERER;\r
397 currentConfig.EmuOpt |= EOPT_16BPP;\r
398 } else if (!(currentConfig.EmuOpt & EOPT_16BPP))\r
399 PicoOpt |= POPT_ALT_RENDERER;\r
400 else\r
401 currentConfig.EmuOpt &= ~EOPT_16BPP;\r
e5589947 402\r
388947f3 403 vidResetMode();\r
dfa4c846 404\r
388947f3 405 if (PicoOpt & POPT_ALT_RENDERER) {\r
406 plat_status_msg(" 8bit fast renderer");\r
407 } else if (currentConfig.EmuOpt & EOPT_16BPP) {\r
408 plat_status_msg("16bit accurate renderer");\r
409 } else {\r
410 plat_status_msg(" 8bit accurate renderer");\r
411 }\r
1078e544 412}\r
413\r
5e2e14f2 414static void emu_msg_tray_open(void)\r
415{\r
388947f3 416 plat_status_msg("CD tray opened");\r
5e2e14f2 417}\r
418\r
82abf46f 419static void RunEventsPico(unsigned int events)\r
e1cd546f 420{\r
6589c840 421 int ret, px, py, lim_x;\r
3f2aaff2 422 static int pdown_frames = 0;\r
423\r
8a091e48 424 emu_RunEventsPico(events);\r
425\r
6589c840 426 if (pico_inp_mode == 0) return;\r
3f2aaff2 427\r
428 // for F200\r
429 ret = gp2x_touchpad_read(&px, &py);\r
6589c840 430 if (ret >= 0)\r
431 {\r
432 if (ret > 35000)\r
433 {\r
3f2aaff2 434 if (pdown_frames++ > 5)\r
435 PicoPad[0] |= 0x20;\r
436\r
437 pico_pen_x = px;\r
438 pico_pen_y = py;\r
439 if (!(Pico.video.reg[12]&1)) {\r
440 pico_pen_x -= 32;\r
441 if (pico_pen_x < 0) pico_pen_x = 0;\r
442 if (pico_pen_x > 248) pico_pen_x = 248;\r
443 }\r
444 if (pico_pen_y > 224) pico_pen_y = 224;\r
445 }\r
446 else\r
6589c840 447 pdown_frames = 0;\r
3f2aaff2 448\r
449 //if (ret == 0)\r
450 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
451 }\r
6589c840 452\r
82abf46f 453 if (PicoPad[0] & 1) pico_pen_y--;\r
454 if (PicoPad[0] & 2) pico_pen_y++;\r
455 if (PicoPad[0] & 4) pico_pen_x--;\r
456 if (PicoPad[0] & 8) pico_pen_x++;\r
6589c840 457 PicoPad[0] &= ~0x0f; // release UDLR\r
6589c840 458\r
459 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
460 if (pico_pen_y < 8) pico_pen_y = 8;\r
461 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
462 if (pico_pen_x < 0) pico_pen_x = 0;\r
463 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
464\r
465 PicoPicohw.pen_pos[0] = pico_pen_x;\r
466 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
467 PicoPicohw.pen_pos[0] += 0x3c;\r
468 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
e1cd546f 469}\r
470\r
388947f3 471void plat_update_volume(int has_changed, int is_up)\r
0480e6c9 472{\r
473 static int prev_frame = 0, wait_frames = 0;\r
474 int vol = currentConfig.volume;\r
388947f3 475 int need_low_volume = 0;\r
476 gp2x_soc_t soc;\r
477\r
478 soc = soc_detect();\r
479 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)\r
480 need_low_volume = 1;\r
0480e6c9 481\r
482 if (has_changed)\r
483 {\r
388947f3 484 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
0480e6c9 485 wait_frames++;\r
486 else {\r
487 if (is_up) {\r
488 if (vol < 99) vol++;\r
489 } else {\r
490 if (vol > 0) vol--;\r
491 }\r
492 wait_frames = 0;\r
b3972d82 493 sndout_oss_setvol(vol, vol);\r
0480e6c9 494 currentConfig.volume = vol;\r
495 }\r
388947f3 496 plat_status_msg("VOL: %02i", vol);\r
0480e6c9 497 prev_frame = Pico.m.frame_count;\r
498 }\r
499\r
388947f3 500 if (need_low_volume)\r
501 return;\r
502\r
503 /* set the right mixer func */\r
0480e6c9 504 if (vol >= 5)\r
505 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
506 else {\r
507 mix_32_to_16l_level = 5 - vol;\r
508 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
509 }\r
510}\r
511\r
720ee7f6 512\r
3ef975c9 513static void updateSound(int len)\r
720ee7f6 514{\r
3ef975c9 515 if (PicoOpt&8) len<<=1;\r
720ee7f6 516\r
d9a18943 517 /* avoid writing audio when lagging behind to prevent audio lag */\r
518 if (PicoSkipFrame != 2)\r
b3972d82 519 sndout_oss_write(PsndOut, len<<1);\r
720ee7f6 520}\r
521\r
725d7f6c 522void emu_startSound(void)\r
523{\r
524 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
525 int target_fps = Pico.m.pal ? 50 : 60;\r
526\r
527 PsndOut = NULL;\r
528\r
529 // prepare sound stuff\r
530 if (currentConfig.EmuOpt & 4)\r
531 {\r
532 int snd_excess_add;\r
533 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
534 ((PicoOpt&0x200) && crashed_940)) {\r
535 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
536 }\r
537 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
538 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
539 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
b3972d82 540 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
541 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
725d7f6c 542 PicoWriteSound = updateSound;\r
388947f3 543 plat_update_volume(0, 0);\r
725d7f6c 544 memset(sndBuffer, 0, sizeof(sndBuffer));\r
545 PsndOut = sndBuffer;\r
546 PsndRate_old = PsndRate;\r
547 PicoOpt_old = PicoOpt;\r
548 pal_old = Pico.m.pal;\r
549 }\r
550}\r
551\r
552void emu_endSound(void)\r
553{\r
554}\r
555\r
556/* wait until we can write more sound */\r
557void emu_waitSound(void)\r
558{\r
559 // don't need to do anything, writes will block by themselves\r
560}\r
561\r
720ee7f6 562\r
d9a18943 563static void SkipFrame(int do_audio)\r
720ee7f6 564{\r
d9a18943 565 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 566 PicoFrame();\r
567 PicoSkipFrame=0;\r
720ee7f6 568}\r
569\r
570\r
84e21f25 571void emu_forcedFrame(int opts)\r
4ffd2858 572{\r
573 int po_old = PicoOpt;\r
13059a60 574 int eo_old = currentConfig.EmuOpt;\r
575\r
84e21f25 576 PicoOpt &= ~0x10;\r
577 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
13059a60 578 currentConfig.EmuOpt |= 0x80;\r
4ffd2858 579\r
13059a60 580 //vidResetMode();\r
581 PicoDrawSetColorFormat(1);\r
dd5fd477 582 PicoScanBegin = EmuScanBegin16;\r
13059a60 583 Pico.m.dirtyPal = 1;\r
584 PicoFrameDrawOnly();\r
4ffd2858 585\r
13059a60 586/*\r
4ffd2858 587 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 588 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 589 clearArea(1);\r
dccc2bd0 590 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 591\r
e31266dd 592 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r
4ffd2858 593 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
594 gp2x_video_setpalette(localPal, 0x40);\r
13059a60 595*/\r
e1aa0fa7 596 PicoOpt = po_old;\r
13059a60 597 currentConfig.EmuOpt = eo_old;\r
4ffd2858 598}\r
599\r
7443ecd9 600void emu_platformDebugCat(char *str)\r
601{\r
602 // nothing\r
603}\r
604\r
720ee7f6 605static void simpleWait(int thissec, int lim_time)\r
606{\r
607 struct timeval tval;\r
608\r
609 spend_cycles(1024);\r
610 gettimeofday(&tval, 0);\r
450dab6f 611 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 612\r
450dab6f 613 while (tval.tv_usec < lim_time)\r
720ee7f6 614 {\r
615 spend_cycles(1024);\r
616 gettimeofday(&tval, 0);\r
450dab6f 617 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 618 }\r
619}\r
620\r
621\r
450dab6f 622#if 0\r
623static void tga_dump(void)\r
624{\r
625#define BYTE unsigned char\r
626#define WORD unsigned short\r
627 struct\r
628 {\r
629 BYTE IDLength; /* 00h Size of Image ID field */\r
630 BYTE ColorMapType; /* 01h Color map type */\r
631 BYTE ImageType; /* 02h Image type code */\r
632 WORD CMapStart; /* 03h Color map origin */\r
633 WORD CMapLength; /* 05h Color map length */\r
634 BYTE CMapDepth; /* 07h Depth of color map entries */\r
635 WORD XOffset; /* 08h X origin of image */\r
636 WORD YOffset; /* 0Ah Y origin of image */\r
637 WORD Width; /* 0Ch Width of image */\r
638 WORD Height; /* 0Eh Height of image */\r
639 BYTE PixelDepth; /* 10h Image pixel size */\r
640 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
641 } __attribute__((packed)) TGAHEAD;\r
642 static unsigned short oldscr[320*240];\r
643 FILE *f; char name[128]; int i;\r
644\r
645 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
646 TGAHEAD.ImageType = 2;\r
647 TGAHEAD.Width = 320;\r
648 TGAHEAD.Height = 240;\r
649 TGAHEAD.PixelDepth = 16;\r
650 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
651\r
652#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
653\r
654 for (i = 0; i < 320*240; i++)\r
e31266dd 655 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
450dab6f 656 if (i < 320*240)\r
657 {\r
658 for (i = 0; i < 320*240; i++)\r
e31266dd 659 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
450dab6f 660 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
661 f = fopen(name, "wb");\r
662 if (!f) { printf("!f\n"); exit(1); }\r
663 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
664 fwrite(oldscr, 1, 320*240*2, f);\r
665 fclose(f);\r
666 }\r
667}\r
668#endif\r
669\r
670\r
720ee7f6 671void emu_Loop(void)\r
672{\r
fa5e045b 673 static int gp2x_old_clock = -1, EmuOpt_old = 0;\r
720ee7f6 674 char fpsbuff[24]; // fps count c string\r
675 struct timeval tval; // timing\r
450dab6f 676 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
677 int frames_done, frames_shown, thissec; // actual frames\r
678 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
720ee7f6 679 char *notice = 0;\r
680\r
681 printf("entered emu_Loop()\n");\r
682\r
fa5e045b 683 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
684 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
fa8d1331 685 set_ram_timings();\r
fa5e045b 686 else\r
687 unset_ram_timings();\r
688 }\r
689\r
690 if (gp2x_old_clock < 0)\r
691 gp2x_old_clock = default_cpu_clock;\r
720ee7f6 692 if (gp2x_old_clock != currentConfig.CPUclock) {\r
693 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
fa5e045b 694 gp2x_set_cpuclk(currentConfig.CPUclock);\r
720ee7f6 695 gp2x_old_clock = currentConfig.CPUclock;\r
696 printf(" done\n");\r
697 }\r
698\r
55a951dd 699 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
fa5e045b 700 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 701 gp2x_old_gamma = currentConfig.gamma;\r
55a951dd 702 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
720ee7f6 703 }\r
704\r
fa5e045b 705 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_PSYNC) {\r
706 if (currentConfig.EmuOpt & EOPT_PSYNC)\r
707 set_lcd_custom_rate(Pico.m.pal);\r
708 else\r
709 unset_lcd_custom_rate();\r
59d0f042 710 }\r
711\r
fa5e045b 712 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
713 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
714\r
59d0f042 715 EmuOpt_old = currentConfig.EmuOpt;\r
720ee7f6 716 fpsbuff[0] = 0;\r
717\r
718 // make sure we are in correct mode\r
719 vidResetMode();\r
f013066e 720 scaling_update();\r
e5d315a5 721 Pico.m.dirtyPal = 1;\r
720ee7f6 722 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
720ee7f6 723\r
724 // pal/ntsc might have changed, reset related stuff\r
725 target_fps = Pico.m.pal ? 50 : 60;\r
726 target_frametime = 1000000/target_fps;\r
727 reset_timing = 1;\r
728\r
725d7f6c 729 emu_startSound();\r
720ee7f6 730\r
5f9922e6 731 // prepare CD buffer\r
dd5fd477 732 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
5f9922e6 733\r
59d0f042 734 // calc vsync offset to sync timing code with vsync\r
735 if (currentConfig.EmuOpt&0x2000) {\r
736 gettimeofday(&tval, 0);\r
737 gp2x_video_wait_vsync();\r
738 gettimeofday(&tval, 0);\r
739 vsync_offset = tval.tv_usec;\r
740 while (vsync_offset >= target_frametime)\r
741 vsync_offset -= target_frametime;\r
742 if (!vsync_offset) vsync_offset++;\r
743 printf("vsync_offset: %i\n", vsync_offset);\r
744 } else\r
745 vsync_offset = 0;\r
746\r
450dab6f 747 frames_done = frames_shown = thissec =\r
748 pframes_done = pframes_shown = pthissec = 0;\r
749\r
750 // loop\r
720ee7f6 751 while (engineState == PGS_Running)\r
752 {\r
753 int modes;\r
754\r
755 gettimeofday(&tval, 0);\r
0480e6c9 756 if (reset_timing) {\r
720ee7f6 757 reset_timing = 0;\r
450dab6f 758 pthissec = tval.tv_sec;\r
759 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
720ee7f6 760 }\r
761\r
762 // show notice message?\r
0480e6c9 763 if (noticeMsgTime.tv_sec)\r
764 {\r
720ee7f6 765 static int noticeMsgSum;\r
766 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
767 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
768 clearArea(0);\r
769 notice = 0;\r
770 } else {\r
771 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
772 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
773 notice = noticeMsg;\r
774 }\r
775 }\r
776\r
777 // check for mode changes\r
778 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
0480e6c9 779 if (modes != oldmodes)\r
780 {\r
720ee7f6 781 int scalex = 320;\r
782 osd_fps_x = OSD_FPS_X;\r
783 if (modes & 4) {\r
784 vidCpyM2 = vidCpyM2_40col;\r
785 } else {\r
786 if (PicoOpt & 0x100) {\r
787 vidCpyM2 = vidCpyM2_32col_nobord;\r
788 scalex = 256;\r
789 osd_fps_x = OSD_FPS_X - 64;\r
790 } else {\r
791 vidCpyM2 = vidCpyM2_32col;\r
792 }\r
793 }\r
fa8d1331 794 /* want vertical scaling and game is not in 240 line mode */\r
795 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(modes&8))\r
79cad122 796 gp2x_video_RGB_setscaling(8, scalex, 224);\r
797 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 798 oldmodes = modes;\r
799 clearArea(1);\r
800 }\r
801\r
802 // second changed?\r
0480e6c9 803 if (thissec != tval.tv_sec)\r
804 {\r
720ee7f6 805#ifdef BENCHMARK\r
806 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
0480e6c9 807 if (++bench == 10) {\r
720ee7f6 808 bench = 0;\r
809 bench_fps_s = bench_fps;\r
810 bf[bfp++ & 3] = bench_fps;\r
811 bench_fps = 0;\r
812 }\r
813 bench_fps += frames_shown;\r
814 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
815#else\r
55c7b464 816 if (currentConfig.EmuOpt & 2) {\r
720ee7f6 817 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
55c7b464 818 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
819 }\r
720ee7f6 820#endif\r
450dab6f 821 frames_shown = frames_done = 0;\r
720ee7f6 822 thissec = tval.tv_sec;\r
450dab6f 823 }\r
824#ifdef PFRAMES\r
825 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
826#endif\r
720ee7f6 827\r
450dab6f 828 if (pthissec != tval.tv_sec)\r
829 {\r
0480e6c9 830 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
450dab6f 831 pframes_done = pframes_shown = 0;\r
720ee7f6 832 } else {\r
833 // it is quite common for this implementation to leave 1 fame unfinished\r
834 // when second changes, but we don't want buffer to starve.\r
388947f3 835 if (PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
836 emu_update_input();\r
450dab6f 837 SkipFrame(1); pframes_done++;\r
720ee7f6 838 }\r
839\r
450dab6f 840 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
841 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
842 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
720ee7f6 843 }\r
450dab6f 844 pthissec = tval.tv_sec;\r
720ee7f6 845 }\r
59d0f042 846\r
450dab6f 847 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
848 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
849 {\r
720ee7f6 850 for(i = 0; i < currentConfig.Frameskip; i++) {\r
388947f3 851 emu_update_input();\r
450dab6f 852 SkipFrame(1); pframes_done++; frames_done++;\r
0480e6c9 853 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
720ee7f6 854 gettimeofday(&tval, 0);\r
450dab6f 855 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
856 if (tval.tv_usec < lim_time) { // we are too fast\r
857 simpleWait(pthissec, lim_time);\r
720ee7f6 858 }\r
859 }\r
860 lim_time += target_frametime;\r
861 }\r
450dab6f 862 }\r
863 else if (tval.tv_usec > lim_time) // auto frameskip\r
864 {\r
720ee7f6 865 // no time left for this frame - skip\r
f013066e 866 if (tval.tv_usec - lim_time >= 300000) {\r
d032c15a 867 /* something caused a slowdown for us (disk access? cache flush?)\r
868 * try to recover by resetting timing... */\r
869 reset_timing = 1;\r
870 continue;\r
871 }\r
388947f3 872 emu_update_input();\r
450dab6f 873 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
720ee7f6 874 continue;\r
875 }\r
876\r
388947f3 877 emu_update_input();\r
720ee7f6 878 PicoFrame();\r
879\r
880 // check time\r
881 gettimeofday(&tval, 0);\r
450dab6f 882 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 883\r
f013066e 884 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
d032c15a 885 reset_timing = 1;\r
886 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 887 {\r
59d0f042 888 // sleep or vsync if we are still too fast\r
720ee7f6 889 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
0480e6c9 890 if (!reset_timing && tval.tv_usec < lim_time)\r
720ee7f6 891 {\r
892 // we are too fast\r
59d0f042 893 if (vsync_offset) {\r
894 if (lim_time - tval.tv_usec > target_frametime/2)\r
450dab6f 895 simpleWait(pthissec, lim_time - target_frametime/4);\r
59d0f042 896 gp2x_video_wait_vsync();\r
897 } else {\r
450dab6f 898 simpleWait(pthissec, lim_time);\r
59d0f042 899 }\r
720ee7f6 900 }\r
901 }\r
902\r
903 blit(fpsbuff, notice);\r
904\r
450dab6f 905 pframes_done++; pframes_shown++;\r
906 frames_done++; frames_shown++;\r
720ee7f6 907 }\r
908\r
8a091e48 909 emu_changeFastForward(0);\r
5f9922e6 910\r
388947f3 911 if (PicoAHW & PAHW_MCD)\r
912 PicoCDBufferFree();\r
5f9922e6 913\r
720ee7f6 914 // save SRAM\r
388947f3 915 if ((currentConfig.EmuOpt & EOPT_USE_SRAM) && SRam.changed) {\r
916 plat_status_msg_busy_first("Writing SRAM/BRAM...");\r
720ee7f6 917 emu_SaveLoadGame(0, 1);\r
918 SRam.changed = 0;\r
919 }\r
e5d315a5 920\r
13059a60 921 // if in 8bit mode, generate 16bit image for menu background\r
388947f3 922 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))\r
84e21f25 923 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
720ee7f6 924}\r
925\r
926\r
927void emu_ResetGame(void)\r
928{\r
8d5cb10d 929 PicoReset();\r
720ee7f6 930 reset_timing = 1;\r
931}\r
932\r
049a6b3e 933const char *plat_get_credits(void)\r
934{\r
935 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
936 "Credits:\n"\r
937 "fDave: Cyclone 68000 core,\n"\r
938 " base code of PicoDrive\n"\r
939 "Reesy & FluBBa: DrZ80 core\n"\r
940 "MAME devs: YM2612 and SN76496 cores\n"\r
941 "rlyeh and others: minimal SDK\n"\r
d572cbad 942 "Squidge: mmuhack\n"\r
049a6b3e 943 "Dzz: ARM940 sample\n"\r
944 "GnoStiC / Puck2099: USB joy code\n"\r
945 "craigix: GP2X hardware\n"\r
946 "ketchupgun: skin design\n"\r
947 "\n"\r
948 "special thanks (for docs, ideas):\n"\r
949 " Charles MacDonald, Haze,\n"\r
950 " Stephane Dallongeville,\n"\r
951 " Lordus, Exophase, Rokas,\n"\r
952 " Nemesis, Tasco Deluxe";\r
953}\r
PicoDrive's frontend in a lib