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fix gp2x build and some obvious menu glitches
[libpicofe.git] / pandora / emu.c
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de9b1274 1// (c) Copyright 2006-2008 notaz, All rights reserved.\r
492d353a 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
9#include <sys/stat.h>\r
10#include <sys/types.h>\r
11#include <linux/limits.h>\r
12#include <ctype.h>\r
13#include <unistd.h>\r
14\r
15#include <stdarg.h>\r
16\r
492d353a 17#include "../common/arm_utils.h"\r
18#include "../common/fonts.h"\r
19#include "../common/emu.h"\r
7fd581f4 20#include "../common/menu.h"\r
492d353a 21#include "../common/config.h"\r
22#include "../common/common.h"\r
fce20e73 23#include "../common/input.h"\r
b3972d82 24#include "../linux/sndout_oss.h"\r
de9b1274 25#include "asm_utils.h"\r
492d353a 26\r
f11bad75 27#include <pico/pico_int.h>\r
28#include <pico/patch.h>\r
29#include <pico/sound/mix.h>\r
492d353a 30#include <zlib/zlib.h>\r
31\r
32//#define PFRAMES\r
de9b1274 33#define BENCHMARK\r
34//#define USE_320_SCREEN 1\r
492d353a 35\r
36#ifdef BENCHMARK\r
37#define OSD_FPS_X (800-200)\r
38#else\r
39#define OSD_FPS_X (800-120)\r
40#endif\r
41\r
42\r
492d353a 43int select_exits = 0;\r
44\r
492d353a 45static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
46static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
47static int osd_fps_x;\r
492d353a 48unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
49int reset_timing = 0;\r
50\r
51#define PICO_PEN_ADJUST_X 4\r
52#define PICO_PEN_ADJUST_Y 2\r
e31266dd 53static int pico_pen_x = 0, pico_pen_y = 240/2;\r
492d353a 54\r
55static void emu_msg_cb(const char *msg);\r
56static void emu_msg_tray_open(void);\r
57\r
58\r
59void emu_noticeMsgUpdated(void)\r
60{\r
61 gettimeofday(&noticeMsgTime, 0);\r
62}\r
63\r
36f6fd5a 64int emu_getMainDir(char *dst, int len)\r
492d353a 65{\r
66 extern char **g_argv;\r
67 int j;\r
68\r
69 strncpy(dst, g_argv[0], len);\r
70 len -= 32; // reserve\r
71 if (len < 0) len = 0;\r
72 dst[len] = 0;\r
73 for (j = strlen(dst); j > 0; j--)\r
74 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
36f6fd5a 75\r
76 return j + 1;\r
492d353a 77}\r
78\r
79void emu_Init(void)\r
80{\r
81 // make temp buffer for alt renderer\r
82 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
83 if (!PicoDraw2FB)\r
84 {\r
85 printf("PicoDraw2FB == 0\n");\r
86 }\r
87\r
88 // make dirs for saves, cfgs, etc.\r
89 mkdir("mds", 0777);\r
90 mkdir("srm", 0777);\r
91 mkdir("brm", 0777);\r
92 mkdir("cfg", 0777);\r
93\r
94 PicoInit();\r
95 PicoMessage = emu_msg_cb;\r
96 PicoMCDopenTray = emu_msg_tray_open;\r
97 PicoMCDcloseTray = menu_loop_tray;\r
98}\r
99\r
100\r
492d353a 101void emu_Deinit(void)\r
102{\r
103 // save SRAM\r
104 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
105 emu_SaveLoadGame(0, 1);\r
106 SRam.changed = 0;\r
107 }\r
108\r
109 if (!(currentConfig.EmuOpt & 0x20)) {\r
110 config_writelrom(PicoConfigFile);\r
111#ifndef NO_SYNC\r
112 sync();\r
113#endif\r
114 }\r
115\r
116 free(PicoDraw2FB);\r
117\r
118 PicoExit();\r
119}\r
120\r
121void emu_prepareDefaultConfig(void)\r
122{\r
123 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
5d239ae7 124 defaultConfig.EmuOpt = 0x8f | 0x00600; // | <- confirm_save, cd_leds\r
de9b1274 125 defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC;\r
126 defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX;\r
5d239ae7 127 defaultConfig.EmuOpt &= ~8; // no save gzip\r
492d353a 128 defaultConfig.s_PsndRate = 44100;\r
5d239ae7 129 defaultConfig.s_PicoRegion = 0;\r
492d353a 130 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
131 defaultConfig.s_PicoCDBuffers = 0;\r
de9b1274 132 defaultConfig.Frameskip = 0;\r
492d353a 133 defaultConfig.CPUclock = 200;\r
134 defaultConfig.volume = 50;\r
135 defaultConfig.scaling = 0;\r
136 defaultConfig.turbo_rate = 15;\r
137}\r
138\r
492d353a 139static void textOut16(int x, int y, const char *text)\r
140{\r
141 int i,l,len=strlen(text);\r
e31266dd 142 unsigned int *screen = (unsigned int *)((unsigned short *)g_screen_ptr + (x&~1) + y*g_screen_width);\r
492d353a 143\r
144 for (i = 0; i < len; i++)\r
145 {\r
de9b1274 146 for (l=0;l<16;)\r
492d353a 147 {\r
148 unsigned char fd = fontdata8x8[((text[i])*8)+l/2];\r
e31266dd 149 unsigned int *d = &screen[l*g_screen_width/2];\r
de9b1274 150 if (fd&0x80) d[0]=0xffffffff;\r
151 if (fd&0x40) d[1]=0xffffffff;\r
152 if (fd&0x20) d[2]=0xffffffff;\r
153 if (fd&0x10) d[3]=0xffffffff;\r
154 if (fd&0x08) d[4]=0xffffffff;\r
155 if (fd&0x04) d[5]=0xffffffff;\r
156 if (fd&0x02) d[6]=0xffffffff;\r
157 if (fd&0x01) d[7]=0xffffffff;\r
e31266dd 158 l++; d = &screen[l*g_screen_width/2];\r
de9b1274 159 if (fd&0x80) d[0]=0xffffffff;\r
160 if (fd&0x40) d[1]=0xffffffff;\r
161 if (fd&0x20) d[2]=0xffffffff;\r
162 if (fd&0x10) d[3]=0xffffffff;\r
163 if (fd&0x08) d[4]=0xffffffff;\r
164 if (fd&0x04) d[5]=0xffffffff;\r
165 if (fd&0x02) d[6]=0xffffffff;\r
166 if (fd&0x01) d[7]=0xffffffff;\r
167 l++;\r
492d353a 168 }\r
169 screen += 8;\r
170 }\r
171}\r
172\r
173\r
174void osd_text(int x, int y, const char *text)\r
175{\r
176 int len = strlen(text)*8;\r
177\r
178 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
179 int *p, i, h;\r
180 x &= ~3; // align x\r
181 len = (len+3) >> 2;\r
182 for (h = 0; h < 8; h++) {\r
7fd581f4 183 p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));\r
492d353a 184 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
185 }\r
186 emu_textOut8(x, y, text);\r
187 } else {\r
188 int *p, i, h;\r
189 x &= ~1; // align x\r
190 len++;\r
191 for (h = 0; h < 16; h++) {\r
7fd581f4 192 p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));\r
de9b1274 193 for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r
492d353a 194 }\r
195 textOut16(x, y, text);\r
196 }\r
197}\r
198\r
199static void draw_cd_leds(void)\r
200{\r
201// static\r
202 int old_reg;\r
203// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
204 old_reg = Pico_mcd->s68k_regs[0];\r
205\r
206 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
207 // 8-bit modes\r
208 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
209 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
7fd581f4 210 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
211 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
212 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
213 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
214 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
215 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
492d353a 216 } else {\r
217 // 16-bit modes\r
7fd581f4 218 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
492d353a 219 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
220 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
e31266dd 221 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
222 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
492d353a 223 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
224 }\r
225}\r
226\r
227static void draw_pico_ptr(void)\r
228{\r
7fd581f4 229 unsigned short *p = (unsigned short *)g_screen_ptr;\r
492d353a 230\r
231 // only if pen enabled and for 16bit modes\r
232 if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
233\r
234 if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
235 p += 32;\r
236\r
e31266dd 237 p += g_screen_width * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
492d353a 238 p += pico_pen_x + PICO_PEN_ADJUST_X;\r
239 p[0] ^= 0xffff;\r
240 p[319] ^= 0xffff;\r
241 p[320] ^= 0xffff;\r
242 p[321] ^= 0xffff;\r
243 p[640] ^= 0xffff;\r
244}\r
245\r
de9b1274 246#ifdef USE_320_SCREEN\r
247\r
248static int EmuScanBegin16(unsigned int num)\r
249{\r
250 if (!(Pico.video.reg[1]&8)) num += 8;\r
7fd581f4 251 DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2;\r
de9b1274 252 //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r
7fd581f4 253 //DrawLineDest = (unsigned short *)g_screen_ptr + num*w;\r
de9b1274 254\r
255 return 0;\r
256}\r
257\r
258#else // USE_320_SCREEN\r
259\r
492d353a 260static int EmuScanEnd16(unsigned int num)\r
261{\r
262 unsigned char *ps=HighCol+8;\r
263 unsigned short *pd;\r
264 unsigned short *pal=HighPal;\r
265 int sh = Pico.video.reg[0xC]&8;\r
266 int len, mask = 0xff;\r
267\r
268 if (!(Pico.video.reg[1]&8)) num += 8;\r
7fd581f4 269 pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2;\r
492d353a 270\r
271 if (Pico.m.dirtyPal)\r
272 PicoDoHighPal555(sh);\r
273\r
274 if (Pico.video.reg[12]&1) {\r
275 len = 320;\r
276 } else {\r
de9b1274 277 pd += 32*2;\r
492d353a 278 len = 256;\r
279 }\r
280\r
f11bad75 281 if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
282 mask=0x3f; // messed sprites, upper bits are priority stuff\r
492d353a 283\r
de9b1274 284#if 1\r
285 clut_line(pd, ps, pal, (mask<<16) | len);\r
286#else\r
492d353a 287 for (; len > 0; len--)\r
288 {\r
289 unsigned int p = pal[*ps++ & mask];\r
290 p |= p << 16;\r
291 *(unsigned int *)pd = p;\r
292 *(unsigned int *)(&pd[800]) = p;\r
293 pd += 2;\r
294 }\r
de9b1274 295#endif\r
492d353a 296\r
297 return 0;\r
298}\r
299\r
de9b1274 300#endif // USE_320_SCREEN\r
301\r
492d353a 302int localPal[0x100];\r
303static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
304\r
305static void blit(const char *fps, const char *notice)\r
306{\r
307 int emu_opt = currentConfig.EmuOpt;\r
308\r
309 if (PicoOpt&0x10)\r
310 {\r
311 // 8bit fast renderer\r
312 if (Pico.m.dirtyPal) {\r
313 Pico.m.dirtyPal = 0;\r
314 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
315 // feed new palette to our device\r
7fd581f4 316 // gp2x_video_setpalette(localPal, 0x40);\r
492d353a 317 }\r
318 // a hack for VR\r
319 if (PicoRead16Hook == PicoSVPRead16)\r
320 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
321 // do actual copy\r
7fd581f4 322 vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);\r
492d353a 323 }\r
324 else if (!(emu_opt&0x80))\r
325 {\r
326 // 8bit accurate renderer\r
327 if (Pico.m.dirtyPal)\r
328 {\r
61f66fe0 329 int pallen = 0xc0;\r
492d353a 330 Pico.m.dirtyPal = 0;\r
331 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
332 {\r
333 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
334 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
335 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
336 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
337 pallen = 0x100;\r
338 }\r
492d353a 339 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
340 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
341 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
342 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
343 pallen = 0xc0;\r
344 }\r
345 else {\r
346 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
61f66fe0 347 memcpy32(localPal+0x80, localPal, 0x40);\r
492d353a 348 }\r
349 if (pallen > 0xc0) {\r
350 localPal[0xc0] = 0x0000c000;\r
351 localPal[0xd0] = 0x00c00000;\r
352 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
353 localPal[0xf0] = 0x00ffffff;\r
354 }\r
7fd581f4 355 // gp2x_video_setpalette(localPal, pallen);\r
492d353a 356 }\r
357 }\r
358\r
359 if (notice || (emu_opt & 2)) {\r
e31266dd 360 int h = g_screen_height-16;\r
492d353a 361 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;\r
362 if (notice) osd_text(4, h, notice);\r
363 if (emu_opt & 2)\r
de9b1274 364 osd_text(osd_fps_x, h, fps);\r
492d353a 365 }\r
366 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
367 draw_cd_leds();\r
368 if (PicoAHW & PAHW_PICO)\r
369 draw_pico_ptr();\r
492d353a 370\r
371 //gp2x_video_wait_vsync();\r
7fd581f4 372 // gp2x_video_flip();\r
492d353a 373}\r
374\r
375\r
376// clears whole screen or just the notice area (in all buffers)\r
377static void clearArea(int full)\r
378{\r
7fd581f4 379 if (full) memset(g_screen_ptr, 0, g_screen_width*g_screen_height*2);\r
380 else memset((short *)g_screen_ptr + g_screen_width * (g_screen_height - 16), 0,\r
381 g_screen_width * 16 * 2);\r
492d353a 382}\r
383\r
384\r
385static void vidResetMode(void)\r
386{\r
7fd581f4 387#if 0\r
492d353a 388 if (PicoOpt&0x10) {\r
389 gp2x_video_changemode(8);\r
390 } else if (currentConfig.EmuOpt&0x80) {\r
391 gp2x_video_changemode(16);\r
de9b1274 392#ifdef USE_320_SCREEN\r
393 PicoDrawSetColorFormat(1);\r
394 PicoScanBegin = EmuScanBegin16;\r
395#else\r
492d353a 396 PicoDrawSetColorFormat(-1);\r
397 PicoScanEnd = EmuScanEnd16;\r
de9b1274 398#endif\r
492d353a 399 } else {\r
400 gp2x_video_changemode(8);\r
401 PicoDrawSetColorFormat(2);\r
402 PicoScanBegin = EmuScanBegin8;\r
403 }\r
404 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
405 // setup pal for 8-bit modes\r
406 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
407 localPal[0xd0] = 0x00c00000;\r
408 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
409 localPal[0xf0] = 0x00ffffff;\r
410 gp2x_video_setpalette(localPal, 0x100);\r
411 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
412 gp2x_video_flip();\r
413 }\r
414 Pico.m.dirtyPal = 1;\r
415 // reset scaling\r
416 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
417 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
418 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
7fd581f4 419#else\r
420#ifdef USE_320_SCREEN\r
421 PicoDrawSetColorFormat(1);\r
422 PicoScanBegin = EmuScanBegin16;\r
423#else\r
424 PicoDrawSetColorFormat(-1);\r
425 PicoScanEnd = EmuScanEnd16;\r
426#endif\r
427#endif\r
492d353a 428}\r
429\r
430\r
431static void emu_msg_cb(const char *msg)\r
432{\r
7fd581f4 433/*\r
492d353a 434 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
435 // 8-bit renderers\r
e31266dd 436 gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16), 0xe0, g_screen_width*16);\r
437 osd_text(4, g_screen_height-16, msg);\r
7fd581f4 438 gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16),\r
e31266dd 439 g_screen_width*(g_screen_height-16), g_screen_width*16);\r
492d353a 440 } else {\r
441 // 16bit accurate renderer\r
e31266dd 442 gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16)*2, 0, g_screen_width*16*2);\r
443 osd_text(4, g_screen_height-16, msg);\r
7fd581f4 444 gp2x_memcpy_all_buffers((char *)g_screen_ptr+g_screen_width*(g_screen_height-16)*2,\r
e31266dd 445 g_screen_width*(g_screen_height-16)*2, g_screen_width*16*2);\r
492d353a 446 }\r
447 gettimeofday(&noticeMsgTime, 0);\r
448 noticeMsgTime.tv_sec -= 2;\r
7fd581f4 449*/\r
492d353a 450 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
451 reset_timing = 1;\r
452}\r
453\r
454static void emu_state_cb(const char *str)\r
455{\r
456 clearArea(0);\r
457 blit("", str);\r
458}\r
459\r
460static void emu_msg_tray_open(void)\r
461{\r
462 strcpy(noticeMsg, "CD tray opened");\r
463 gettimeofday(&noticeMsgTime, 0);\r
464}\r
465\r
fce20e73 466#if 0\r
492d353a 467static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)\r
468{\r
469 int ret, px, py, lim_x;\r
470 static int pdown_frames = 0;\r
471\r
472 emu_RunEventsPico(events);\r
473\r
474 if (pico_inp_mode == 0) return;\r
475\r
476 // for F200\r
477 ret = gp2x_touchpad_read(&px, &py);\r
478 if (ret >= 0)\r
479 {\r
480 if (ret > 35000)\r
481 {\r
482 if (pdown_frames++ > 5)\r
483 PicoPad[0] |= 0x20;\r
484\r
485 pico_pen_x = px;\r
486 pico_pen_y = py;\r
487 if (!(Pico.video.reg[12]&1)) {\r
488 pico_pen_x -= 32;\r
489 if (pico_pen_x < 0) pico_pen_x = 0;\r
490 if (pico_pen_x > 248) pico_pen_x = 248;\r
491 }\r
492 if (pico_pen_y > 224) pico_pen_y = 224;\r
493 }\r
494 else\r
495 pdown_frames = 0;\r
496\r
497 //if (ret == 0)\r
498 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
499 }\r
500\r
501 PicoPad[0] &= ~0x0f; // release UDLR\r
502 if (gp2x_keys & GP2X_UP) pico_pen_y--;\r
503 if (gp2x_keys & GP2X_DOWN) pico_pen_y++;\r
504 if (gp2x_keys & GP2X_LEFT) pico_pen_x--;\r
505 if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;\r
506\r
507 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
508 if (pico_pen_y < 8) pico_pen_y = 8;\r
509 if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
510 if (pico_pen_x < 0) pico_pen_x = 0;\r
511 if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
512\r
513 PicoPicohw.pen_pos[0] = pico_pen_x;\r
514 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
515 PicoPicohw.pen_pos[0] += 0x3c;\r
516 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
517}\r
fce20e73 518#endif\r
492d353a 519\r
520static void update_volume(int has_changed, int is_up)\r
521{\r
522 static int prev_frame = 0, wait_frames = 0;\r
523 int vol = currentConfig.volume;\r
524\r
525 if (has_changed)\r
526 {\r
527 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
528 wait_frames++;\r
529 else {\r
530 if (is_up) {\r
531 if (vol < 99) vol++;\r
532 } else {\r
533 if (vol > 0) vol--;\r
534 }\r
535 wait_frames = 0;\r
b3972d82 536 sndout_oss_setvol(vol, vol);\r
492d353a 537 currentConfig.volume = vol;\r
538 }\r
539 sprintf(noticeMsg, "VOL: %02i", vol);\r
540 gettimeofday(&noticeMsgTime, 0);\r
541 prev_frame = Pico.m.frame_count;\r
542 }\r
543\r
544 // set the right mixer func\r
545 if (!(PicoOpt&8)) return; // just use defaults for mono\r
546 if (vol >= 5)\r
547 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
548 else {\r
549 mix_32_to_16l_level = 5 - vol;\r
550 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
551 }\r
552}\r
553\r
554static void RunEvents(unsigned int which)\r
555{\r
556 if (which & 0x1800) // save or load (but not both)\r
557 {\r
558 int do_it = 1;\r
559 if ( emu_checkSaveFile(state_slot) &&\r
560 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
561 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
fce20e73 562#if 0\r
492d353a 563 unsigned long keys;\r
564 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
565 while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
566 usleep(50*1024);\r
567 if (keys & GP2X_X) do_it = 0;\r
568 while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release\r
569 usleep(50*1024);\r
570 clearArea(0);\r
fce20e73 571#endif\r
492d353a 572 }\r
573 if (do_it) {\r
e31266dd 574 osd_text(4, g_screen_height-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
492d353a 575 PicoStateProgressCB = emu_state_cb;\r
7fd581f4 576 //gp2x_memcpy_all_buffers(g_screen_ptr, 0, g_screen_width*g_screen_height*2);\r
492d353a 577 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
578 PicoStateProgressCB = NULL;\r
579 }\r
580\r
581 reset_timing = 1;\r
582 }\r
583 if (which & 0x0400) // switch renderer\r
584 {\r
585 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
586 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
587 else currentConfig.EmuOpt &= ~0x80;\r
588\r
589 vidResetMode();\r
590\r
591 if (PicoOpt&0x10) {\r
592 strcpy(noticeMsg, " 8bit fast renderer");\r
593 } else if (currentConfig.EmuOpt&0x80) {\r
594 strcpy(noticeMsg, "16bit accurate renderer");\r
595 } else {\r
596 strcpy(noticeMsg, " 8bit accurate renderer");\r
597 }\r
598\r
599 gettimeofday(&noticeMsgTime, 0);\r
600 }\r
601 if (which & 0x0300)\r
602 {\r
603 if(which&0x0200) {\r
604 state_slot -= 1;\r
605 if(state_slot < 0) state_slot = 9;\r
606 } else {\r
607 state_slot += 1;\r
608 if(state_slot > 9) state_slot = 0;\r
609 }\r
610 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
611 gettimeofday(&noticeMsgTime, 0);\r
612 }\r
613 if (which & 0x0080) {\r
614 engineState = PGS_Menu;\r
615 }\r
616}\r
617\r
618static void updateKeys(void)\r
619{\r
fce20e73 620 unsigned int allActions[2] = { 0, 0 }, events;\r
492d353a 621 static unsigned int prevEvents = 0;\r
492d353a 622\r
fce20e73 623 /* FIXME: combos, player2 */\r
624 allActions[0] = in_update();\r
492d353a 625\r
626 PicoPad[0] = allActions[0] & 0xfff;\r
627 PicoPad[1] = allActions[1] & 0xfff;\r
628\r
629 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
630 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
631\r
632 events = (allActions[0] | allActions[1]) >> 16;\r
633\r
634 // volume is treated in special way and triggered every frame\r
635 if (events & 0x6000)\r
636 update_volume(1, events & 0x2000);\r
637\r
638 if ((events ^ prevEvents) & 0x40) {\r
639 emu_changeFastForward(events & 0x40);\r
640 update_volume(0, 0);\r
641 reset_timing = 1;\r
642 }\r
643\r
644 events &= ~prevEvents;\r
645\r
fce20e73 646/*\r
492d353a 647 if (PicoAHW == PAHW_PICO)\r
648 RunEventsPico(events, keys);\r
fce20e73 649*/\r
492d353a 650 if (events) RunEvents(events);\r
651 if (movie_data) emu_updateMovie();\r
652\r
653 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
654}\r
655\r
656\r
657static void updateSound(int len)\r
658{\r
659 if (PicoOpt&8) len<<=1;\r
660\r
661 /* avoid writing audio when lagging behind to prevent audio lag */\r
662 if (PicoSkipFrame != 2)\r
b3972d82 663 sndout_oss_write(PsndOut, len<<1);\r
492d353a 664}\r
665\r
666\r
667static void SkipFrame(int do_audio)\r
668{\r
669 PicoSkipFrame=do_audio ? 1 : 2;\r
670 PicoFrame();\r
671 PicoSkipFrame=0;\r
672}\r
673\r
674\r
675void emu_forcedFrame(int opts)\r
676{\r
677 int po_old = PicoOpt;\r
678 int eo_old = currentConfig.EmuOpt;\r
679\r
680 PicoOpt &= ~0x10;\r
681 PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
682 currentConfig.EmuOpt |= 0x80;\r
683\r
684 //vidResetMode();\r
de9b1274 685#ifdef USE_320_SCREEN\r
686 PicoDrawSetColorFormat(1);\r
687 PicoScanBegin = EmuScanBegin16;\r
688#else\r
492d353a 689 PicoDrawSetColorFormat(-1);\r
690 PicoScanEnd = EmuScanEnd16;\r
de9b1274 691#endif\r
492d353a 692 Pico.m.dirtyPal = 1;\r
693 PicoFrameDrawOnly();\r
694\r
695/*\r
696 if (!(Pico.video.reg[12]&1)) {\r
697 vidCpyM2 = vidCpyM2_32col;\r
698 clearArea(1);\r
699 } else vidCpyM2 = vidCpyM2_40col;\r
700\r
7fd581f4 701 vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);\r
492d353a 702 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
703 gp2x_video_setpalette(localPal, 0x40);\r
704*/\r
705 PicoOpt = po_old;\r
706 currentConfig.EmuOpt = eo_old;\r
707}\r
708\r
f11bad75 709void emu_platformDebugCat(char *str)\r
710{\r
711 // nothing\r
712}\r
713\r
492d353a 714static void simpleWait(int thissec, int lim_time)\r
715{\r
716 struct timeval tval;\r
717\r
718 spend_cycles(1024);\r
719 gettimeofday(&tval, 0);\r
720 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
721\r
722 while (tval.tv_usec < lim_time)\r
723 {\r
724 spend_cycles(1024);\r
725 gettimeofday(&tval, 0);\r
726 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
727 }\r
728}\r
729\r
fce20e73 730void emu_startSound(void)\r
731{\r
732 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
733 int target_fps = Pico.m.pal ? 50 : 60;\r
734\r
735 PsndOut = NULL;\r
736\r
737 if (currentConfig.EmuOpt & 4)\r
738 {\r
739 int snd_excess_add;\r
740 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r
741 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
742\r
743 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
744 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
745 PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
746 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
747 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
748 PicoWriteSound = updateSound;\r
749 update_volume(0, 0);\r
750 memset(sndBuffer, 0, sizeof(sndBuffer));\r
751 PsndOut = sndBuffer;\r
752 PsndRate_old = PsndRate;\r
753 PicoOpt_old = PicoOpt;\r
754 pal_old = Pico.m.pal;\r
755 }\r
756}\r
757\r
758void emu_endSound(void)\r
759{\r
760}\r
761\r
762/* wait until we can write more sound */\r
763void emu_waitSound(void)\r
764{\r
765 // don't need to do anything, writes will block by themselves\r
766}\r
492d353a 767\r
768void emu_Loop(void)\r
769{\r
492d353a 770 char fpsbuff[24]; // fps count c string\r
771 struct timeval tval; // timing\r
772 int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
773 int frames_done, frames_shown, thissec; // actual frames\r
774 int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
775 char *notice = 0;\r
776\r
777 printf("entered emu_Loop()\n");\r
778\r
779 fpsbuff[0] = 0;\r
780\r
781 // make sure we are in correct mode\r
782 vidResetMode();\r
492d353a 783 Pico.m.dirtyPal = 1;\r
784 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
785 emu_findKeyBindCombos();\r
786\r
787 // pal/ntsc might have changed, reset related stuff\r
788 target_fps = Pico.m.pal ? 50 : 60;\r
789 target_frametime = 1000000/target_fps;\r
790 reset_timing = 1;\r
791\r
fce20e73 792 emu_startSound();\r
492d353a 793\r
794 // prepare CD buffer\r
795 if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
796\r
797 // calc vsync offset to sync timing code with vsync\r
798 if (currentConfig.EmuOpt&0x2000) {\r
799 gettimeofday(&tval, 0);\r
7fd581f4 800 //gp2x_video_wait_vsync();\r
492d353a 801 gettimeofday(&tval, 0);\r
802 vsync_offset = tval.tv_usec;\r
803 while (vsync_offset >= target_frametime)\r
804 vsync_offset -= target_frametime;\r
805 if (!vsync_offset) vsync_offset++;\r
806 printf("vsync_offset: %i\n", vsync_offset);\r
807 } else\r
808 vsync_offset = 0;\r
809\r
810 frames_done = frames_shown = thissec =\r
811 pframes_done = pframes_shown = pthissec = 0;\r
812\r
813 // loop\r
814 while (engineState == PGS_Running)\r
815 {\r
816 int modes;\r
817\r
818 gettimeofday(&tval, 0);\r
819 if (reset_timing) {\r
820 reset_timing = 0;\r
821 pthissec = tval.tv_sec;\r
822 pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
823 }\r
824\r
825 // show notice message?\r
826 if (noticeMsgTime.tv_sec)\r
827 {\r
828 static int noticeMsgSum;\r
829 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
830 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
831 clearArea(0);\r
832 notice = 0;\r
833 } else {\r
834 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
835 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
836 notice = noticeMsg;\r
837 }\r
838 }\r
839\r
840 // check for mode changes\r
841 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
842 if (modes != oldmodes)\r
843 {\r
e31266dd 844 int scalex = g_screen_width;\r
492d353a 845 osd_fps_x = OSD_FPS_X;\r
846 if (modes & 4) {\r
847 vidCpyM2 = vidCpyM2_40col;\r
848 } else {\r
849 if (PicoOpt & 0x100) {\r
850 vidCpyM2 = vidCpyM2_32col_nobord;\r
851 scalex = 256;\r
852 osd_fps_x = OSD_FPS_X - 64;\r
853 } else {\r
854 vidCpyM2 = vidCpyM2_32col;\r
855 }\r
856 }\r
7fd581f4 857 //if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
858 // gp2x_video_RGB_setscaling(8, scalex, 224);\r
859 // else gp2x_video_RGB_setscaling(0, scalex, 240);\r
492d353a 860 oldmodes = modes;\r
861 clearArea(1);\r
862 }\r
863\r
864 // second changed?\r
865 if (thissec != tval.tv_sec)\r
866 {\r
867#ifdef BENCHMARK\r
868 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
de9b1274 869 if (++bench == 4) {\r
492d353a 870 bench = 0;\r
de9b1274 871 bench_fps_s = bench_fps / 4;\r
872 bf[bfp++ & 3] = bench_fps / 4;\r
492d353a 873 bench_fps = 0;\r
874 }\r
875 bench_fps += frames_shown;\r
de9b1274 876 sprintf(fpsbuff, "%3i/%3i/%3i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
5d239ae7 877 printf("%s\n", fpsbuff);\r
492d353a 878#else\r
879 if (currentConfig.EmuOpt & 2) {\r
de9b1274 880 sprintf(fpsbuff, "%3i/%3i", frames_shown, frames_done);\r
492d353a 881 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
882 }\r
883#endif\r
884 frames_shown = frames_done = 0;\r
885 thissec = tval.tv_sec;\r
886 }\r
887#ifdef PFRAMES\r
888 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
889#endif\r
890\r
891 if (pthissec != tval.tv_sec)\r
892 {\r
893 if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
894 pframes_done = pframes_shown = 0;\r
895 } else {\r
896 // it is quite common for this implementation to leave 1 fame unfinished\r
897 // when second changes, but we don't want buffer to starve.\r
898 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
899 updateKeys();\r
900 SkipFrame(1); pframes_done++;\r
901 }\r
902\r
903 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
904 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
905 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
906 }\r
907 pthissec = tval.tv_sec;\r
908 }\r
909\r
910 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
911 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
912 {\r
913 for(i = 0; i < currentConfig.Frameskip; i++) {\r
914 updateKeys();\r
915 SkipFrame(1); pframes_done++; frames_done++;\r
916 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
917 gettimeofday(&tval, 0);\r
918 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
919 if (tval.tv_usec < lim_time) { // we are too fast\r
920 simpleWait(pthissec, lim_time);\r
921 }\r
922 }\r
923 lim_time += target_frametime;\r
924 }\r
925 }\r
926 else if (tval.tv_usec > lim_time) // auto frameskip\r
927 {\r
928 // no time left for this frame - skip\r
929 if (tval.tv_usec - lim_time >= 300000) {\r
930 /* something caused a slowdown for us (disk access? cache flush?)\r
931 * try to recover by resetting timing... */\r
932 reset_timing = 1;\r
933 continue;\r
934 }\r
935 updateKeys();\r
936 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
937 continue;\r
938 }\r
939\r
940 updateKeys();\r
941 PicoFrame();\r
942\r
943 // check time\r
944 gettimeofday(&tval, 0);\r
945 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
946\r
947 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
948 reset_timing = 1;\r
095a240b 949#if 1\r
950 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
492d353a 951 {\r
952 // sleep or vsync if we are still too fast\r
953 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
954 if (!reset_timing && tval.tv_usec < lim_time)\r
955 {\r
956 // we are too fast\r
957 if (vsync_offset) {\r
958 if (lim_time - tval.tv_usec > target_frametime/2)\r
959 simpleWait(pthissec, lim_time - target_frametime/4);\r
7fd581f4 960 // gp2x_video_wait_vsync();\r
492d353a 961 } else {\r
962 simpleWait(pthissec, lim_time);\r
963 }\r
964 }\r
965 }\r
095a240b 966#endif\r
492d353a 967 blit(fpsbuff, notice);\r
968\r
969 pframes_done++; pframes_shown++;\r
970 frames_done++; frames_shown++;\r
971 }\r
972\r
973 emu_changeFastForward(0);\r
974\r
975 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
976\r
977 // save SRAM\r
978 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
979 emu_state_cb("Writing SRAM/BRAM..");\r
980 emu_SaveLoadGame(0, 1);\r
981 SRam.changed = 0;\r
982 }\r
983\r
984 // if in 8bit mode, generate 16bit image for menu background\r
985 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
986 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
987}\r
988\r
989\r
990void emu_ResetGame(void)\r
991{\r
992 PicoReset();\r
993 reset_timing = 1;\r
994}\r
995\r
PicoDrive's frontend in a lib