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revive pandora and win32 builds, rm gp2x dep for linux, lots of refactoring
[libpicofe.git] / gp2x / emu.c
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1// (c) Copyright 2006-2009 notaz, All rights reserved.\r
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\r
9#include "plat_gp2x.h"\r
10#include "soc.h"\r
11#include "../common/plat.h"\r
12#include "../common/menu.h"\r
13#include "../common/arm_utils.h"\r
14#include "../common/fonts.h"\r
15#include "../common/emu.h"\r
16#include "../common/config.h"\r
17#include "../linux/sndout_oss.h"\r
18#include "version.h"\r
19\r
20#include <pico/pico_int.h>\r
21#include <pico/patch.h>\r
22#include <pico/sound/mix.h>\r
23#include <zlib/zlib.h>\r
24\r
25//#define PFRAMES\r
26\r
27#ifdef BENCHMARK\r
28#define OSD_FPS_X 220\r
29#else\r
30#define OSD_FPS_X 260\r
31#endif\r
32\r
33\r
34extern int crashed_940;\r
35\r
36static short __attribute__((aligned(4))) sndBuffer[2*(44100+100)/50];\r
37static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];\r
38unsigned char *PicoDraw2FB = PicoDraw2FB_;\r
39static int osd_fps_x, osd_y;\r
40\r
41extern void *gp2x_screens[4];\r
42\r
43\r
44static void scaling_update(void)\r
45{\r
46 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);\r
47 switch (currentConfig.scaling) {\r
48 default:break;\r
49 case EOPT_SCALE_HW_H:\r
50 case EOPT_SCALE_HW_HV:\r
51 PicoOpt |= POPT_DIS_32C_BORDER;\r
52 break;\r
53 case EOPT_SCALE_SW_H:\r
54 PicoOpt |= POPT_EN_SOFTSCALE;\r
55 break;\r
56 }\r
57}\r
58\r
59\r
60void pemu_prep_defconfig(void)\r
61{\r
62 gp2x_soc_t soc;\r
63\r
64 defaultConfig.CPUclock = default_cpu_clock;\r
65\r
66 soc = soc_detect();\r
67 if (soc == SOCID_MMSP2)\r
68 defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r
69 else if (soc == SOCID_POLLUX)\r
70 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;\r
71}\r
72\r
73void pemu_validate_config(void)\r
74{\r
75 gp2x_soc_t soc;\r
76\r
77 soc = soc_detect();\r
78 if (soc != SOCID_MMSP2)\r
79 PicoOpt &= ~POPT_EXT_FM;\r
80 if (soc != SOCID_POLLUX)\r
81 currentConfig.EmuOpt &= ~EOPT_WIZ_TEAR_FIX;\r
82\r
83 if (currentConfig.gamma < 10 || currentConfig.gamma > 300)\r
84 currentConfig.gamma = 100;\r
85\r
86 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 1024)\r
87 currentConfig.CPUclock = default_cpu_clock;\r
88}\r
89\r
90static void (*osd_text)(int x, int y, const char *text);\r
91\r
92static void osd_text8(int x, int y, const char *text)\r
93{\r
94 int len = strlen(text)*8;\r
95 int *p, i, h, offs;\r
96\r
97 len = (len+3) >> 2;\r
98 for (h = 0; h < 8; h++) {\r
99 offs = (x + g_screen_width * (y+h)) & ~3;\r
100 p = (int *) ((char *)g_screen_ptr + offs);\r
101 for (i = len; i; i--, p++)\r
102 *p = 0xe0e0e0e0;\r
103 }\r
104 emu_text_out8(x, y, text);\r
105}\r
106\r
107static void osd_text16(int x, int y, const char *text)\r
108{\r
109 int len = strlen(text)*8;\r
110 int *p, i, h, offs;\r
111\r
112 len = (len+1) >> 1;\r
113 for (h = 0; h < 8; h++) {\r
114 offs = (x + g_screen_width * (y+h)) & ~1;\r
115 p = (int *) ((short *)g_screen_ptr + offs);\r
116 for (i = len; i; i--, p++)\r
117 *p = (*p >> 2) & 0x39e7;\r
118 }\r
119 emu_text_out16(x, y, text);\r
120}\r
121\r
122static void osd_text8_rot(int x, int y, const char *text)\r
123{\r
124 int len = strlen(text) * 8;\r
125 char *p = (char *)g_screen_ptr + 240*(320-x) + y;\r
126\r
127 while (len--) {\r
128 memset(p, 0xe0, 8);\r
129 p -= 240;\r
130 }\r
131\r
132 emu_text_out8_rot(x, y, text);\r
133}\r
134\r
135static void osd_text16_rot(int x, int y, const char *text)\r
136{\r
137 int len = strlen(text) * 8;\r
138 short *p = (short *)g_screen_ptr + 240*(320-x) + y;\r
139\r
140 while (len--) {\r
141 memset(p, 0, 8*2);\r
142 p -= 240;\r
143 }\r
144\r
145 emu_text_out16_rot(x, y, text);\r
146}\r
147\r
148static void draw_cd_leds(void)\r
149{\r
150 int led_reg, pitch, scr_offs, led_offs;\r
151 led_reg = Pico_mcd->s68k_regs[0];\r
152\r
153 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
154 pitch = 240;\r
155 led_offs = -pitch * 6;\r
156 scr_offs = pitch * (320 - 4);\r
157 } else {\r
158 pitch = 320;\r
159 led_offs = 4;\r
160 scr_offs = pitch * 2 + 4;\r
161 }\r
162\r
163 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
164 #define p(x) px[(x) >> 2]\r
165 // 8-bit modes\r
166 unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);\r
167 unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
168 unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
169 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
170 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
171 #undef p\r
172 } else {\r
173 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r
174 // 16-bit modes\r
175 unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);\r
176 unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;\r
177 unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;\r
178 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
179 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
180 #undef p\r
181 }\r
182}\r
183\r
184static void draw_pico_ptr(void)\r
185{\r
186 unsigned short *p = (unsigned short *)g_screen_ptr;\r
187 int x, y, pitch = 320;\r
188\r
189 // only if pen enabled and for 16bit modes\r
190 if (pico_inp_mode == 0 || (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))\r
191 return;\r
192\r
193 x = pico_pen_x + PICO_PEN_ADJUST_X;\r
194 y = pico_pen_y + PICO_PEN_ADJUST_Y;\r
195 if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))\r
196 x += 32;\r
197\r
198 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
199 pitch = 240;\r
200 p += (319 - x) * pitch + y;\r
201 } else\r
202 p += x + y * pitch;\r
203\r
204 p[0] ^= 0xffff;\r
205 p[pitch-1] ^= 0xffff;\r
206 p[pitch] ^= 0xffff;\r
207 p[pitch+1] ^= 0xffff;\r
208 p[pitch*2] ^= 0xffff;\r
209}\r
210\r
211static int EmuScanBegin16(unsigned int num)\r
212{\r
213 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;\r
214\r
215 return 0;\r
216}\r
217\r
218static int EmuScanBegin8(unsigned int num)\r
219{\r
220 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;\r
221\r
222 return 0;\r
223}\r
224\r
225/* rot thing for Wiz */\r
226static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];\r
227\r
228static int EmuScanBegin16_rot(unsigned int num)\r
229{\r
230 DrawLineDest = rot_buff + (num & 3) * 320 * 2;\r
231 return 0;\r
232}\r
233\r
234static int EmuScanEnd16_rot(unsigned int num)\r
235{\r
236 if ((num & 3) != 3)\r
237 return 0;\r
238 rotated_blit16(g_screen_ptr, rot_buff, num + 1,\r
239 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));\r
240 return 0;\r
241}\r
242\r
243static int EmuScanBegin8_rot(unsigned int num)\r
244{\r
245 DrawLineDest = rot_buff + (num & 3) * 320;\r
246 return 0;\r
247}\r
248\r
249static int EmuScanEnd8_rot(unsigned int num)\r
250{\r
251 if ((num & 3) != 3)\r
252 return 0;\r
253 rotated_blit8(g_screen_ptr, rot_buff, num + 1,\r
254 !(Pico.video.reg[12] & 1));\r
255 return 0;\r
256}\r
257\r
258static int localPal[0x100];\r
259static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border);\r
260static int (*make_local_pal)(int fast_mode);\r
261\r
262static int make_local_pal_md(int fast_mode)\r
263{\r
264 int pallen = 0xc0;\r
265\r
266 bgr444_to_rgb32(localPal, Pico.cram);\r
267 if (fast_mode)\r
268 return 0x40;\r
269\r
270 if (Pico.video.reg[0xC] & 8) { // shadow/hilight mode\r
271 bgr444_to_rgb32_sh(localPal, Pico.cram);\r
272 localPal[0xc0] = 0x0000c000;\r
273 localPal[0xd0] = 0x00c00000;\r
274 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
275 localPal[0xf0] = 0x00ffffff;\r
276 pallen = 0x100;\r
277 }\r
278 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
279 bgr444_to_rgb32(localPal+0x40, HighPal);\r
280 bgr444_to_rgb32(localPal+0x80, HighPal+0x40);\r
281 }\r
282 else\r
283 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
284\r
285 return pallen;\r
286}\r
287\r
288static int make_local_pal_sms(int fast_mode)\r
289{\r
290 unsigned short *spal = Pico.cram;\r
291 unsigned int *dpal = (void *)localPal;\r
292 unsigned int i, t;\r
293\r
294 for (i = 0x40; i > 0; i--) {\r
295 t = *spal++;\r
296 t = ((t & 0x0003) << 22) | ((t & 0x000c) << 12) | ((t & 0x0030) << 2);\r
297 t |= t >> 2;\r
298 t |= t >> 4;\r
299 *dpal++ = t;\r
300 }\r
301\r
302 return 0x40;\r
303}\r
304\r
305void pemu_update_display(const char *fps, const char *notice)\r
306{\r
307 int emu_opt = currentConfig.EmuOpt;\r
308 int ret;\r
309\r
310 if (PicoOpt & POPT_ALT_RENDERER)\r
311 {\r
312 // 8bit fast renderer\r
313 if (Pico.m.dirtyPal) {\r
314 Pico.m.dirtyPal = 0;\r
315 ret = make_local_pal(1);\r
316 // feed new palette to our device\r
317 gp2x_video_setpalette(localPal, ret);\r
318 }\r
319 // a hack for VR\r
320 if (PicoAHW & PAHW_SVP)\r
321 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
322 // do actual copy\r
323 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,\r
324 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));\r
325 }\r
326 else if (!(emu_opt & EOPT_16BPP))\r
327 {\r
328 // 8bit accurate renderer\r
329 if (Pico.m.dirtyPal)\r
330 {\r
331 Pico.m.dirtyPal = 0;\r
332 ret = make_local_pal(0);\r
333 gp2x_video_setpalette(localPal, ret);\r
334 }\r
335 }\r
336\r
337 if (notice || (emu_opt & EOPT_SHOW_FPS)) {\r
338 if (notice)\r
339 osd_text(4, osd_y, notice);\r
340 if (emu_opt & 2)\r
341 osd_text(osd_fps_x, osd_y, fps);\r
342 }\r
343 if ((PicoAHW & PAHW_MCD) && (emu_opt & EOPT_EN_CD_LEDS))\r
344 draw_cd_leds();\r
345 if (PicoAHW & PAHW_PICO)\r
346 draw_pico_ptr();\r
347\r
348 gp2x_video_flip();\r
349}\r
350\r
351/* XXX */\r
352#ifdef __GP2X__\r
353unsigned int plat_get_ticks_ms(void)\r
354{\r
355 return gp2x_get_ticks_ms();\r
356}\r
357\r
358unsigned int plat_get_ticks_us(void)\r
359{\r
360 return gp2x_get_ticks_us();\r
361}\r
362#endif\r
363\r
364void plat_wait_till_us(unsigned int us_to)\r
365{\r
366 unsigned int now;\r
367\r
368 spend_cycles(1024);\r
369 now = plat_get_ticks_us();\r
370\r
371 while ((signed int)(us_to - now) > 512)\r
372 {\r
373 spend_cycles(1024);\r
374 now = plat_get_ticks_us();\r
375 }\r
376}\r
377\r
378void plat_video_wait_vsync(void)\r
379{\r
380 gp2x_video_wait_vsync();\r
381}\r
382\r
383void plat_status_msg_clear(void)\r
384{\r
385 int is_8bit = (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP);\r
386 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
387 /* ugh.. */\r
388 int i, u, *p;\r
389 if (is_8bit) {\r
390 for (i = 0; i < 4; i++) {\r
391 p = (int *)gp2x_screens[i] + (240-8) / 4;\r
392 for (u = 320; u > 0; u--, p += 240/4)\r
393 p[0] = p[1] = 0xe0e0e0e0;\r
394 }\r
395 } else {\r
396 for (i = 0; i < 4; i++) {\r
397 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;\r
398 for (u = 320; u > 0; u--, p += 240*2/4)\r
399 p[0] = p[1] = p[2] = p[3] = 0;\r
400 }\r
401 }\r
402 return;\r
403 }\r
404\r
405 if (is_8bit)\r
406 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
407 else\r
408 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
409}\r
410\r
411void plat_status_msg_busy_next(const char *msg)\r
412{\r
413 plat_status_msg_clear();\r
414 pemu_update_display("", msg);\r
415 emu_status_msg("");\r
416\r
417 /* assumption: msg_busy_next gets called only when\r
418 * something slow is about to happen */\r
419 reset_timing = 1;\r
420}\r
421\r
422void plat_status_msg_busy_first(const char *msg)\r
423{\r
424 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
425 plat_status_msg_busy_next(msg);\r
426}\r
427\r
428static void vidResetMode(void)\r
429{\r
430 PicoScanEnd = NULL;\r
431\r
432 if (PicoOpt & POPT_ALT_RENDERER) {\r
433 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
434 gp2x_video_changemode(-8);\r
435 vidcpyM2 = vidcpy_m2_rot;\r
436 osd_text = osd_text8_rot;\r
437 } else {\r
438 gp2x_video_changemode(8);\r
439 vidcpyM2 = vidcpy_m2;\r
440 osd_text = osd_text8;\r
441 }\r
442 }\r
443 else if (currentConfig.EmuOpt & EOPT_16BPP) {\r
444 PicoDrawSetColorFormat(1);\r
445 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
446 gp2x_video_changemode(-16);\r
447 PicoScanBegin = EmuScanBegin16_rot;\r
448 PicoScanEnd = EmuScanEnd16_rot;\r
449 osd_text = osd_text16_rot;\r
450 } else {\r
451 gp2x_video_changemode(16);\r
452 PicoScanBegin = EmuScanBegin16;\r
453 osd_text = osd_text16;\r
454 }\r
455 }\r
456 else {\r
457 PicoDrawSetColorFormat(2);\r
458 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
459 gp2x_video_changemode(-8);\r
460 PicoScanBegin = EmuScanBegin8_rot;\r
461 PicoScanEnd = EmuScanEnd8_rot;\r
462 osd_text = osd_text8_rot;\r
463 } else {\r
464 gp2x_video_changemode(8);\r
465 PicoScanBegin = EmuScanBegin8;\r
466 osd_text = osd_text8;\r
467 }\r
468 }\r
469\r
470 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
471 // setup pal for 8-bit modes\r
472 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
473 localPal[0xd0] = 0x00c00000;\r
474 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
475 localPal[0xf0] = 0x00ffffff;\r
476 gp2x_video_setpalette(localPal, 0x100);\r
477 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
478 gp2x_video_flip();\r
479 }\r
480 Pico.m.dirtyPal = 1;\r
481\r
482 // reset scaling\r
483 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
484 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
485 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
486\r
487 // palette converters for 8bit modes\r
488 make_local_pal = (PicoAHW & PAHW_SMS) ? make_local_pal_sms : make_local_pal_md;\r
489}\r
490\r
491void plat_video_toggle_renderer(int is_next, int force_16bpp, int is_menu)\r
492{\r
493 if (force_16bpp) {\r
494 PicoOpt &= ~POPT_ALT_RENDERER;\r
495 currentConfig.EmuOpt |= EOPT_16BPP;\r
496 }\r
497 /* alt, 16bpp, 8bpp */\r
498 else if (PicoOpt & POPT_ALT_RENDERER) {\r
499 PicoOpt &= ~POPT_ALT_RENDERER;\r
500 if (is_next)\r
501 currentConfig.EmuOpt |= EOPT_16BPP;\r
502 } else if (!(currentConfig.EmuOpt & EOPT_16BPP)) {\r
503 if (is_next)\r
504 PicoOpt |= POPT_ALT_RENDERER;\r
505 else\r
506 currentConfig.EmuOpt |= EOPT_16BPP;\r
507 } else {\r
508 currentConfig.EmuOpt &= ~EOPT_16BPP;\r
509 if (!is_next)\r
510 PicoOpt |= POPT_ALT_RENDERER;\r
511 }\r
512\r
513 if (is_menu)\r
514 return;\r
515\r
516 vidResetMode();\r
517 rendstatus_old = -1;\r
518\r
519 if (PicoOpt & POPT_ALT_RENDERER) {\r
520 emu_status_msg(" 8bit fast renderer");\r
521 } else if (currentConfig.EmuOpt & EOPT_16BPP) {\r
522 emu_status_msg("16bit accurate renderer");\r
523 } else {\r
524 emu_status_msg(" 8bit accurate renderer");\r
525 }\r
526}\r
527\r
528#if 0 // TODO\r
529static void RunEventsPico(unsigned int events)\r
530{\r
531 int ret, px, py, lim_x;\r
532 static int pdown_frames = 0;\r
533\r
534 // for F200\r
535 ret = gp2x_touchpad_read(&px, &py);\r
536 if (ret >= 0)\r
537 {\r
538 if (ret > 35000)\r
539 {\r
540 if (pdown_frames++ > 5)\r
541 PicoPad[0] |= 0x20;\r
542\r
543 pico_pen_x = px;\r
544 pico_pen_y = py;\r
545 if (!(Pico.video.reg[12]&1)) {\r
546 pico_pen_x -= 32;\r
547 if (pico_pen_x < 0) pico_pen_x = 0;\r
548 if (pico_pen_x > 248) pico_pen_x = 248;\r
549 }\r
550 if (pico_pen_y > 224) pico_pen_y = 224;\r
551 }\r
552 else\r
553 pdown_frames = 0;\r
554\r
555 //if (ret == 0)\r
556 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
557 }\r
558}\r
559#endif\r
560\r
561void plat_update_volume(int has_changed, int is_up)\r
562{\r
563 static int prev_frame = 0, wait_frames = 0;\r
564 int vol = currentConfig.volume;\r
565 int need_low_volume = 0;\r
566 gp2x_soc_t soc;\r
567\r
568 soc = soc_detect();\r
569 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)\r
570 need_low_volume = 1;\r
571\r
572 if (has_changed)\r
573 {\r
574 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
575 wait_frames++;\r
576 else {\r
577 if (is_up) {\r
578 if (vol < 99) vol++;\r
579 } else {\r
580 if (vol > 0) vol--;\r
581 }\r
582 wait_frames = 0;\r
583 sndout_oss_setvol(vol, vol);\r
584 currentConfig.volume = vol;\r
585 }\r
586 emu_status_msg("VOL: %02i", vol);\r
587 prev_frame = Pico.m.frame_count;\r
588 }\r
589\r
590 if (!need_low_volume)\r
591 return;\r
592\r
593 /* set the right mixer func */\r
594 if (vol >= 5)\r
595 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
596 else {\r
597 mix_32_to_16l_level = 5 - vol;\r
598 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
599 }\r
600}\r
601\r
602static void updateSound(int len)\r
603{\r
604 len <<= 1;\r
605 if (PicoOpt & POPT_EN_STEREO)\r
606 len <<= 1;\r
607\r
608 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
609 return;\r
610\r
611 /* avoid writing audio when lagging behind to prevent audio lag */\r
612 if (PicoSkipFrame != 2)\r
613 sndout_oss_write(PsndOut, len);\r
614}\r
615\r
616void pemu_sound_start(void)\r
617{\r
618 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
619\r
620 PsndOut = NULL;\r
621\r
622 // prepare sound stuff\r
623 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
624 {\r
625 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
626 int target_fps = Pico.m.pal ? 50 : 60;\r
627 int frame_samples, snd_excess_add;\r
628 int snd_rate_oss = PsndRate;\r
629 gp2x_soc_t soc;\r
630\r
631 soc = soc_detect();\r
632 if (soc == SOCID_POLLUX) {\r
633 /* POLLUX pain: DPLL1 / mclk_div / bitclk_div / 4 */\r
634 switch (PsndRate) {\r
635 case 44100: PsndRate = 44171; break; // 44170.673077\r
636 case 22050: PsndRate = 22086; break; // 22085.336538\r
637 case 11025: PsndRate = 11043; break; // 11042.668269\r
638 default: break;\r
639 }\r
640 }\r
641\r
642 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)\r
643 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||\r
644 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {\r
645 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
646 }\r
647\r
648 memset(sndBuffer, 0, sizeof(sndBuffer));\r
649 PsndOut = sndBuffer;\r
650 PicoWriteSound = updateSound;\r
651 PsndRate_old = PsndRate;\r
652 PicoOpt_old = PicoOpt;\r
653 pal_old = Pico.m.pal;\r
654 plat_update_volume(0, 0);\r
655\r
656 frame_samples = PsndLen;\r
657 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r
658 if (snd_excess_add != 0)\r
659 frame_samples++;\r
660 if (soc == SOCID_POLLUX)\r
661 frame_samples *= 2; /* force larger buffer */\r
662\r
663 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
664 PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r
665 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
666 sndout_oss_start(snd_rate_oss, frame_samples, is_stereo);\r
667\r
668 /* Wiz's sound hardware needs more prebuffer */\r
669 if (soc == SOCID_POLLUX)\r
670 updateSound(frame_samples);\r
671 }\r
672}\r
673\r
674void pemu_sound_stop(void)\r
675{\r
676 /* get back from Wiz pain */\r
677 switch (PsndRate) {\r
678 case 44171: PsndRate = 44100; break;\r
679 case 22086: PsndRate = 22050; break;\r
680 case 11043: PsndRate = 11025; break;\r
681 default: break;\r
682 }\r
683}\r
684\r
685void pemu_sound_wait(void)\r
686{\r
687 // don't need to do anything, writes will block by themselves\r
688}\r
689\r
690\r
691void pemu_forced_frame(int opts)\r
692{\r
693 int po_old = PicoOpt;\r
694 int eo_old = currentConfig.EmuOpt;\r
695\r
696 PicoOpt &= ~POPT_ALT_RENDERER;\r
697 PicoOpt |= opts|POPT_ACC_SPRITES;\r
698 currentConfig.EmuOpt |= EOPT_16BPP;\r
699\r
700 PicoDrawSetColorFormat(1);\r
701 PicoScanBegin = EmuScanBegin16;\r
702 PicoScanEnd = NULL;\r
703 Pico.m.dirtyPal = 1;\r
704 PicoFrameDrawOnly();\r
705\r
706 PicoOpt = po_old;\r
707 currentConfig.EmuOpt = eo_old;\r
708}\r
709\r
710void plat_debug_cat(char *str)\r
711{\r
712}\r
713\r
714void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
715{\r
716 int scalex = 320;\r
717 osd_fps_x = OSD_FPS_X;\r
718 osd_y = 232;\r
719 if (is_32cols && (PicoOpt & POPT_DIS_32C_BORDER)) {\r
720 scalex = 256;\r
721 osd_fps_x = OSD_FPS_X - 64;\r
722 }\r
723\r
724 /* want vertical scaling and game is not in 240 line mode */\r
725 if (currentConfig.scaling == EOPT_SCALE_HW_HV) {\r
726 gp2x_video_RGB_setscaling(start_line, scalex, line_count);\r
727 osd_y = start_line + line_count - 8;\r
728 } else\r
729 gp2x_video_RGB_setscaling(0, scalex, 240);\r
730\r
731 // clear whole screen in all buffers\r
732 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))\r
733 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
734 else\r
735 gp2x_memset_all_buffers(0, 0, 320*240*2);\r
736}\r
737\r
738#if 0\r
739static void tga_dump(void)\r
740{\r
741#define BYTE unsigned char\r
742#define WORD unsigned short\r
743 struct\r
744 {\r
745 BYTE IDLength; /* 00h Size of Image ID field */\r
746 BYTE ColorMapType; /* 01h Color map type */\r
747 BYTE ImageType; /* 02h Image type code */\r
748 WORD CMapStart; /* 03h Color map origin */\r
749 WORD CMapLength; /* 05h Color map length */\r
750 BYTE CMapDepth; /* 07h Depth of color map entries */\r
751 WORD XOffset; /* 08h X origin of image */\r
752 WORD YOffset; /* 0Ah Y origin of image */\r
753 WORD Width; /* 0Ch Width of image */\r
754 WORD Height; /* 0Eh Height of image */\r
755 BYTE PixelDepth; /* 10h Image pixel size */\r
756 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
757 } __attribute__((packed)) TGAHEAD;\r
758 static unsigned short oldscr[320*240];\r
759 FILE *f; char name[128]; int i;\r
760\r
761 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
762 TGAHEAD.ImageType = 2;\r
763 TGAHEAD.Width = 320;\r
764 TGAHEAD.Height = 240;\r
765 TGAHEAD.PixelDepth = 16;\r
766 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
767\r
768#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
769\r
770 for (i = 0; i < 320*240; i++)\r
771 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
772 if (i < 320*240)\r
773 {\r
774 for (i = 0; i < 320*240; i++)\r
775 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
776 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
777 f = fopen(name, "wb");\r
778 if (!f) { printf("!f\n"); exit(1); }\r
779 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
780 fwrite(oldscr, 1, 320*240*2, f);\r
781 fclose(f);\r
782 }\r
783}\r
784#endif\r
785\r
786void pemu_loop_prep(void)\r
787{\r
788 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;\r
789 static int gp2x_old_gamma = 100;\r
790 gp2x_soc_t soc;\r
791\r
792 soc = soc_detect();\r
793\r
794 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
795 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
796 set_ram_timings();\r
797 else\r
798 unset_ram_timings();\r
799 }\r
800\r
801 if (gp2x_old_clock < 0)\r
802 gp2x_old_clock = default_cpu_clock;\r
803 if (gp2x_old_clock != currentConfig.CPUclock) {\r
804 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
805 gp2x_set_cpuclk(currentConfig.CPUclock);\r
806 gp2x_old_clock = currentConfig.CPUclock;\r
807 printf(" done\n");\r
808 }\r
809\r
810 if (gp2x_old_gamma != currentConfig.gamma || ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_A_SN_GAMMA)) {\r
811 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt & EOPT_A_SN_GAMMA));\r
812 gp2x_old_gamma = currentConfig.gamma;\r
813 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
814 }\r
815\r
816 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_VSYNC) || Pico.m.pal != pal_old) {\r
817 if ((currentConfig.EmuOpt & EOPT_VSYNC) || soc == SOCID_POLLUX)\r
818 set_lcd_custom_rate(Pico.m.pal);\r
819 else if (EmuOpt_old & EOPT_VSYNC)\r
820 unset_lcd_custom_rate();\r
821 }\r
822\r
823 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
824 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
825\r
826 EmuOpt_old = currentConfig.EmuOpt;\r
827 pal_old = Pico.m.pal;\r
828\r
829 // make sure we are in correct mode\r
830 vidResetMode();\r
831 scaling_update();\r
832\r
833 pemu_sound_start();\r
834}\r
835\r
836void pemu_loop_end(void)\r
837{\r
838 int po_old = PicoOpt;\r
839 int eo_old = currentConfig.EmuOpt;\r
840\r
841 pemu_sound_stop();\r
842 memset32(g_screen_ptr, 0, 320*240*2/4);\r
843\r
844 /* do one more frame for menu bg */\r
845 PicoOpt &= ~POPT_ALT_RENDERER;\r
846 PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r
847 currentConfig.EmuOpt |= EOPT_16BPP;\r
848\r
849 PicoScanBegin = EmuScanBegin16;\r
850 PicoScanEnd = NULL;\r
851 PicoDrawSetColorFormat(1);\r
852 Pico.m.dirtyPal = 1;\r
853 PicoFrame();\r
854\r
855 PicoOpt = po_old;\r
856 currentConfig.EmuOpt = eo_old;\r
857}\r
858\r
859const char *plat_get_credits(void)\r
860{\r
861 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
862 "Credits:\n"\r
863 "fDave: Cyclone 68000 core,\n"\r
864 " base code of PicoDrive\n"\r
865 "Reesy & FluBBa: DrZ80 core\n"\r
866 "MAME devs: YM2612 and SN76496 cores\n"\r
867 "rlyeh and others: minimal SDK\n"\r
868 "Squidge: mmuhack\n"\r
869 "Dzz: ARM940 sample\n"\r
870 "GnoStiC / Puck2099: USB joy code\n"\r
871 "craigix: GP2X hardware\n"\r
872 "ketchupgun: skin design\n"\r
873 "\n"\r
874 "special thanks (for docs, ideas):\n"\r
875 " Charles MacDonald, Haze,\n"\r
876 " Stephane Dallongeville,\n"\r
877 " Lordus, Exophase, Rokas,\n"\r
878 " Nemesis, Tasco Deluxe";\r
879}\r
PicoDrive's frontend in a lib