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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*44100/50];\r
37static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];\r
38unsigned char *PicoDraw2FB = PicoDraw2FB_;\r
39static int osd_fps_x;\r
40\r
41extern void *gp2x_screens[4];\r
42\r
43int plat_get_root_dir(char *dst, int len)\r
44{\r
45 extern char **g_argv;\r
46 int j;\r
47\r
48 strncpy(dst, g_argv[0], len);\r
49 len -= 32; // reserve\r
50 if (len < 0) len = 0;\r
51 dst[len] = 0;\r
52 for (j = strlen(dst); j > 0; j--)\r
53 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
54\r
55 return j + 1;\r
56}\r
57\r
58\r
59static void scaling_update(void)\r
60{\r
61 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);\r
62 switch (currentConfig.scaling) {\r
63 default:break;\r
64 case EOPT_SCALE_HW_H:\r
65 case EOPT_SCALE_HW_HV:\r
66 PicoOpt |= POPT_DIS_32C_BORDER;\r
67 break;\r
68 case EOPT_SCALE_SW_H:\r
69 PicoOpt |= POPT_EN_SOFTSCALE;\r
70 break;\r
71 }\r
72}\r
73\r
74\r
75void pemu_prep_defconfig(void)\r
76{\r
77 gp2x_soc_t soc;\r
78\r
79 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
80 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_CONFIRM_SAVE|EOPT_EN_CD_LEDS;\r
81 defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;\r
82 defaultConfig.s_PsndRate = 44100;\r
83 defaultConfig.s_PicoRegion = 0; // auto\r
84 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
85 defaultConfig.s_PicoCDBuffers = 0;\r
86 defaultConfig.Frameskip = -1; // auto\r
87 defaultConfig.CPUclock = default_cpu_clock;\r
88 defaultConfig.volume = 50;\r
89 defaultConfig.gamma = 100;\r
90 defaultConfig.scaling = 0;\r
91 defaultConfig.turbo_rate = 15;\r
92\r
93 soc = soc_detect();\r
94 if (soc == SOCID_MMSP2)\r
95 defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r
96 else if (soc == SOCID_POLLUX)\r
97 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;\r
98}\r
99\r
100static void (*osd_text)(int x, int y, const char *text);\r
101\r
102static void osd_text8(int x, int y, const char *text)\r
103{\r
104 int len = strlen(text)*8;\r
105 int *p, i, h, offs;\r
106\r
107 len = (len+3) >> 2;\r
108 for (h = 0; h < 8; h++) {\r
109 offs = (x + g_screen_width * (y+h)) & ~3;\r
110 p = (int *) ((char *)g_screen_ptr + offs);\r
111 for (i = len; i; i--, p++)\r
112 *p = 0xe0e0e0e0;\r
113 }\r
114 emu_text_out8(x, y, text);\r
115}\r
116\r
117static void osd_text16(int x, int y, const char *text)\r
118{\r
119 int len = strlen(text)*8;\r
120 int *p, i, h, offs;\r
121\r
122 len = (len+1) >> 1;\r
123 for (h = 0; h < 8; h++) {\r
124 offs = (x + g_screen_width * (y+h)) & ~1;\r
125 p = (int *) ((short *)g_screen_ptr + offs);\r
126 for (i = len; i; i--, p++)\r
127 *p = (*p >> 2) & 0x39e7;\r
128 }\r
129 emu_text_out16(x, y, text);\r
130}\r
131\r
132static void osd_text8_rot(int x, int y, const char *text)\r
133{\r
134 int len = strlen(text) * 8;\r
135 char *p = (char *)g_screen_ptr + 240*(320-x) + y;\r
136\r
137 while (len--) {\r
138 memset(p, 0xe0, 8);\r
139 p -= 240;\r
140 }\r
141\r
142 emu_text_out8_rot(x, y, text);\r
143}\r
144\r
145static void osd_text16_rot(int x, int y, const char *text)\r
146{\r
147 int len = strlen(text) * 8;\r
148 short *p = (short *)g_screen_ptr + 240*(320-x) + y;\r
149\r
150 while (len--) {\r
151 memset(p, 0, 8*2);\r
152 p -= 240;\r
153 }\r
154\r
155 emu_text_out16_rot(x, y, text);\r
156}\r
157\r
158static void draw_cd_leds(void)\r
159{\r
160 int led_reg, pitch, scr_offs, led_offs;\r
161 led_reg = Pico_mcd->s68k_regs[0];\r
162\r
163 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
164 pitch = 240;\r
165 led_offs = -pitch * 6;\r
166 scr_offs = pitch * (320 - 4);\r
167 } else {\r
168 pitch = 320;\r
169 led_offs = 4;\r
170 scr_offs = pitch * 2 + 4;\r
171 }\r
172\r
173 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
174 #define p(x) px[(x) >> 2]\r
175 // 8-bit modes\r
176 unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);\r
177 unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
178 unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
179 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
180 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
181 #undef p\r
182 } else {\r
183 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r
184 // 16-bit modes\r
185 unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);\r
186 unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;\r
187 unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;\r
188 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
189 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
190 #undef p\r
191 }\r
192}\r
193\r
194static void draw_pico_ptr(void)\r
195{\r
196 unsigned short *p = (unsigned short *)g_screen_ptr;\r
197 int x, y, pitch = 320;\r
198\r
199 // only if pen enabled and for 16bit modes\r
200 if (pico_inp_mode == 0 || (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))\r
201 return;\r
202\r
203 x = pico_pen_x + PICO_PEN_ADJUST_X;\r
204 y = pico_pen_y + PICO_PEN_ADJUST_Y;\r
205 if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))\r
206 x += 32;\r
207\r
208 if (EOPT_WIZ_TEAR_FIX) {\r
209 pitch = 240;\r
210 p += (319 - x) * pitch + y;\r
211 } else\r
212 p += x + y * pitch;\r
213\r
214 p[0] ^= 0xffff;\r
215 p[pitch-1] ^= 0xffff;\r
216 p[pitch] ^= 0xffff;\r
217 p[pitch+1] ^= 0xffff;\r
218 p[pitch*2] ^= 0xffff;\r
219}\r
220\r
221static int EmuScanBegin16(unsigned int num)\r
222{\r
223 if (!(Pico.video.reg[1]&8)) num += 8;\r
224 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;\r
225\r
226 return 0;\r
227}\r
228\r
229static int EmuScanBegin8(unsigned int num)\r
230{\r
231 if (!(Pico.video.reg[1]&8)) num += 8;\r
232 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;\r
233\r
234 return 0;\r
235}\r
236\r
237/* rot thing for Wiz */\r
238static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];\r
239\r
240static int EmuScanBegin16_rot(unsigned int num)\r
241{\r
242 DrawLineDest = rot_buff + (num & 3) * 320 * 2;\r
243 return 0;\r
244}\r
245\r
246static int EmuScanEnd16_rot(unsigned int num)\r
247{\r
248 if ((num & 3) != 3)\r
249 return 0;\r
250 if (!(Pico.video.reg[1] & 8))\r
251 num += 8;\r
252 rotated_blit16(g_screen_ptr, rot_buff, num + 1,\r
253 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));\r
254 return 0;\r
255}\r
256\r
257static int EmuScanBegin8_rot(unsigned int num)\r
258{\r
259 DrawLineDest = rot_buff + (num & 3) * 320;\r
260 return 0;\r
261}\r
262\r
263static int EmuScanEnd8_rot(unsigned int num)\r
264{\r
265 if ((num & 3) != 3)\r
266 return 0;\r
267 if (!(Pico.video.reg[1] & 8))\r
268 num += 8;\r
269 rotated_blit8(g_screen_ptr, rot_buff, num + 1,\r
270 !(Pico.video.reg[12] & 1));\r
271 return 0;\r
272}\r
273\r
274int localPal[0x100];\r
275static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border) = NULL;\r
276\r
277void pemu_update_display(const char *fps, const char *notice)\r
278{\r
279 int emu_opt = currentConfig.EmuOpt;\r
280\r
281 if (PicoOpt & POPT_ALT_RENDERER)\r
282 {\r
283 // 8bit fast renderer\r
284 if (Pico.m.dirtyPal) {\r
285 Pico.m.dirtyPal = 0;\r
286 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
287 // feed new palette to our device\r
288 gp2x_video_setpalette(localPal, 0x40);\r
289 }\r
290 // a hack for VR\r
291 if (PicoRead16Hook == PicoSVPRead16)\r
292 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
293 // do actual copy\r
294 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,\r
295 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));\r
296 }\r
297 else if (!(emu_opt & EOPT_16BPP))\r
298 {\r
299 // 8bit accurate renderer\r
300 if (Pico.m.dirtyPal)\r
301 {\r
302 int pallen = 0xc0;\r
303 Pico.m.dirtyPal = 0;\r
304 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
305 {\r
306 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
307 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
308 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
309 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
310 pallen = 0x100;\r
311 }\r
312 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
313 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
314 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
315 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
316 }\r
317 else {\r
318 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
319 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
320 }\r
321 if (pallen > 0xc0) {\r
322 localPal[0xc0] = 0x0000c000;\r
323 localPal[0xd0] = 0x00c00000;\r
324 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
325 localPal[0xf0] = 0x00ffffff;\r
326 }\r
327 gp2x_video_setpalette(localPal, pallen);\r
328 }\r
329 }\r
330\r
331 if (notice || (emu_opt & 2)) {\r
332 int h = 232;\r
333 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
334 h -= 8;\r
335 if (notice)\r
336 osd_text(4, h, notice);\r
337 if (emu_opt & 2)\r
338 osd_text(osd_fps_x, h, fps);\r
339 }\r
340 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
341 draw_cd_leds();\r
342 if (PicoAHW & PAHW_PICO)\r
343 draw_pico_ptr();\r
344\r
345 gp2x_video_flip();\r
346}\r
347\r
348/* XXX */\r
349#ifdef __GP2X__\r
350unsigned int plat_get_ticks_ms(void)\r
351{\r
352 return gp2x_get_ticks_ms();\r
353}\r
354\r
355unsigned int plat_get_ticks_us(void)\r
356{\r
357 return gp2x_get_ticks_us();\r
358}\r
359#endif\r
360\r
361void plat_wait_till_us(unsigned int us_to)\r
362{\r
363 unsigned int now;\r
364\r
365 spend_cycles(1024);\r
366 now = plat_get_ticks_us();\r
367\r
368 while ((signed int)(us_to - now) > 512)\r
369 {\r
370 spend_cycles(1024);\r
371 now = plat_get_ticks_us();\r
372 }\r
373}\r
374\r
375void plat_video_wait_vsync(void)\r
376{\r
377 gp2x_video_wait_vsync();\r
378}\r
379\r
380void plat_status_msg_clear(void)\r
381{\r
382 int is_8bit = (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP);\r
383 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
384 /* ugh.. */\r
385 int i, u, *p;\r
386 if (is_8bit) {\r
387 for (i = 0; i < 4; i++) {\r
388 p = (int *)gp2x_screens[i] + (240-8) / 4;\r
389 for (u = 320; u > 0; u--, p += 240/4)\r
390 p[0] = p[1] = 0xe0e0e0e0;\r
391 }\r
392 } else {\r
393 for (i = 0; i < 4; i++) {\r
394 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;\r
395 for (u = 320; u > 0; u--, p += 240*2/4)\r
396 p[0] = p[1] = p[2] = p[3] = 0;\r
397 }\r
398 }\r
399 return;\r
400 }\r
401\r
402 if (is_8bit)\r
403 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
404 else\r
405 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
406}\r
407\r
408void plat_status_msg_busy_next(const char *msg)\r
409{\r
410 plat_status_msg_clear();\r
411 pemu_update_display("", msg);\r
412 emu_status_msg("");\r
413\r
414 /* assumption: msg_busy_next gets called only when\r
415 * something slow is about to happen */\r
416 reset_timing = 1;\r
417}\r
418\r
419void plat_status_msg_busy_first(const char *msg)\r
420{\r
421 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
422 plat_status_msg_busy_next(msg);\r
423}\r
424\r
425static void vidResetMode(void)\r
426{\r
427 PicoScanEnd = NULL;\r
428\r
429 if (PicoOpt & POPT_ALT_RENDERER) {\r
430 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
431 gp2x_video_changemode(-8);\r
432 vidcpyM2 = vidcpy_m2_rot;\r
433 osd_text = osd_text8_rot;\r
434 } else {\r
435 gp2x_video_changemode(8);\r
436 vidcpyM2 = vidcpy_m2;\r
437 osd_text = osd_text8;\r
438 }\r
439 }\r
440 else if (currentConfig.EmuOpt & EOPT_16BPP) {\r
441 PicoDrawSetColorFormat(1);\r
442 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
443 gp2x_video_changemode(-16);\r
444 PicoScanBegin = EmuScanBegin16_rot;\r
445 PicoScanEnd = EmuScanEnd16_rot;\r
446 osd_text = osd_text16_rot;\r
447 } else {\r
448 gp2x_video_changemode(16);\r
449 PicoScanBegin = EmuScanBegin16;\r
450 osd_text = osd_text16;\r
451 }\r
452 }\r
453 else {\r
454 PicoDrawSetColorFormat(2);\r
455 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
456 gp2x_video_changemode(-8);\r
457 PicoScanBegin = EmuScanBegin8_rot;\r
458 PicoScanEnd = EmuScanEnd8_rot;\r
459 osd_text = osd_text8_rot;\r
460 } else {\r
461 gp2x_video_changemode(8);\r
462 PicoScanBegin = EmuScanBegin8;\r
463 osd_text = osd_text8;\r
464 }\r
465 }\r
466\r
467 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
468 // setup pal for 8-bit modes\r
469 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
470 localPal[0xd0] = 0x00c00000;\r
471 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
472 localPal[0xf0] = 0x00ffffff;\r
473 gp2x_video_setpalette(localPal, 0x100);\r
474 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
475 gp2x_video_flip();\r
476 }\r
477 Pico.m.dirtyPal = 1;\r
478\r
479 // reset scaling\r
480 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
481 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
482 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
483}\r
484\r
485void plat_video_toggle_renderer(int is_next, int is_menu)\r
486{\r
487 /* alt, 16bpp, 8bpp */\r
488 if (PicoOpt & POPT_ALT_RENDERER) {\r
489 PicoOpt &= ~POPT_ALT_RENDERER;\r
490 if (is_next)\r
491 currentConfig.EmuOpt |= EOPT_16BPP;\r
492 } else if (!(currentConfig.EmuOpt & EOPT_16BPP)) {\r
493 if (is_next)\r
494 PicoOpt |= POPT_ALT_RENDERER;\r
495 else\r
496 currentConfig.EmuOpt |= EOPT_16BPP;\r
497 } else {\r
498 currentConfig.EmuOpt &= ~EOPT_16BPP;\r
499 if (!is_next)\r
500 PicoOpt |= POPT_ALT_RENDERER;\r
501 }\r
502\r
503 if (is_menu)\r
504 return;\r
505\r
506 vidResetMode();\r
507\r
508 if (PicoOpt & POPT_ALT_RENDERER) {\r
509 emu_status_msg(" 8bit fast renderer");\r
510 } else if (currentConfig.EmuOpt & EOPT_16BPP) {\r
511 emu_status_msg("16bit accurate renderer");\r
512 } else {\r
513 emu_status_msg(" 8bit accurate renderer");\r
514 }\r
515}\r
516\r
517#if 0 // TODO\r
518static void RunEventsPico(unsigned int events)\r
519{\r
520 int ret, px, py, lim_x;\r
521 static int pdown_frames = 0;\r
522\r
523 // for F200\r
524 ret = gp2x_touchpad_read(&px, &py);\r
525 if (ret >= 0)\r
526 {\r
527 if (ret > 35000)\r
528 {\r
529 if (pdown_frames++ > 5)\r
530 PicoPad[0] |= 0x20;\r
531\r
532 pico_pen_x = px;\r
533 pico_pen_y = py;\r
534 if (!(Pico.video.reg[12]&1)) {\r
535 pico_pen_x -= 32;\r
536 if (pico_pen_x < 0) pico_pen_x = 0;\r
537 if (pico_pen_x > 248) pico_pen_x = 248;\r
538 }\r
539 if (pico_pen_y > 224) pico_pen_y = 224;\r
540 }\r
541 else\r
542 pdown_frames = 0;\r
543\r
544 //if (ret == 0)\r
545 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
546 }\r
547}\r
548#endif\r
549\r
550void plat_update_volume(int has_changed, int is_up)\r
551{\r
552 static int prev_frame = 0, wait_frames = 0;\r
553 int vol = currentConfig.volume;\r
554 int need_low_volume = 0;\r
555 gp2x_soc_t soc;\r
556\r
557 soc = soc_detect();\r
558 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)\r
559 need_low_volume = 1;\r
560\r
561 if (has_changed)\r
562 {\r
563 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
564 wait_frames++;\r
565 else {\r
566 if (is_up) {\r
567 if (vol < 99) vol++;\r
568 } else {\r
569 if (vol > 0) vol--;\r
570 }\r
571 wait_frames = 0;\r
572 sndout_oss_setvol(vol, vol);\r
573 currentConfig.volume = vol;\r
574 }\r
575 emu_status_msg("VOL: %02i", vol);\r
576 prev_frame = Pico.m.frame_count;\r
577 }\r
578\r
579 if (!need_low_volume)\r
580 return;\r
581\r
582 /* set the right mixer func */\r
583 if (vol >= 5)\r
584 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
585 else {\r
586 mix_32_to_16l_level = 5 - vol;\r
587 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
588 }\r
589}\r
590\r
591static void updateSound(int len)\r
592{\r
593 if (PicoOpt & POPT_EN_STEREO)\r
594 len <<= 1;\r
595\r
596 /* avoid writing audio when lagging behind to prevent audio lag */\r
597 if (PicoSkipFrame != 2)\r
598 sndout_oss_write(PsndOut, len<<1);\r
599}\r
600\r
601void pemu_sound_start(void)\r
602{\r
603 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
604\r
605 PsndOut = NULL;\r
606\r
607 // prepare sound stuff\r
608 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
609 {\r
610 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
611 int target_fps = Pico.m.pal ? 50 : 60;\r
612 int snd_excess_add;\r
613 gp2x_soc_t soc;\r
614\r
615 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)\r
616 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||\r
617 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {\r
618 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
619 }\r
620 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r
621 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
622 PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r
623 sndout_oss_start(PsndRate, 16, is_stereo);\r
624 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
625 PicoWriteSound = updateSound;\r
626 plat_update_volume(0, 0);\r
627 memset(sndBuffer, 0, sizeof(sndBuffer));\r
628 PsndOut = sndBuffer;\r
629 PsndRate_old = PsndRate;\r
630 PicoOpt_old = PicoOpt;\r
631 pal_old = Pico.m.pal;\r
632\r
633 /* Wiz's sound hardware needs more prebuffer */\r
634 soc = soc_detect();\r
635 if (soc == SOCID_POLLUX)\r
636 updateSound(PsndLen);\r
637 }\r
638}\r
639\r
640void pemu_sound_stop(void)\r
641{\r
642}\r
643\r
644void pemu_sound_wait(void)\r
645{\r
646 // don't need to do anything, writes will block by themselves\r
647}\r
648\r
649\r
650void pemu_forced_frame(int opts)\r
651{\r
652 int po_old = PicoOpt;\r
653 int eo_old = currentConfig.EmuOpt;\r
654\r
655 PicoOpt &= ~POPT_ALT_RENDERER;\r
656 PicoOpt |= opts|POPT_ACC_SPRITES;\r
657 currentConfig.EmuOpt |= EOPT_16BPP;\r
658\r
659 PicoDrawSetColorFormat(1);\r
660 PicoScanBegin = EmuScanBegin16;\r
661 PicoScanEnd = NULL;\r
662 Pico.m.dirtyPal = 1;\r
663 PicoFrameDrawOnly();\r
664\r
665 PicoOpt = po_old;\r
666 currentConfig.EmuOpt = eo_old;\r
667}\r
668\r
669void plat_debug_cat(char *str)\r
670{\r
671}\r
672\r
673void pemu_video_mode_change(int is_32col, int is_240_lines)\r
674{\r
675 int scalex = 320;\r
676 osd_fps_x = OSD_FPS_X;\r
677 if (is_32col && (PicoOpt & POPT_DIS_32C_BORDER)) {\r
678 scalex = 256;\r
679 osd_fps_x = OSD_FPS_X - 64;\r
680 }\r
681 /* want vertical scaling and game is not in 240 line mode */\r
682 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !is_240_lines)\r
683 gp2x_video_RGB_setscaling(8, scalex, 224);\r
684 else\r
685 gp2x_video_RGB_setscaling(0, scalex, 240);\r
686\r
687 // clear whole screen in all buffers\r
688 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))\r
689 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
690 else\r
691 gp2x_memset_all_buffers(0, 0, 320*240*2);\r
692}\r
693\r
694#if 0\r
695static void tga_dump(void)\r
696{\r
697#define BYTE unsigned char\r
698#define WORD unsigned short\r
699 struct\r
700 {\r
701 BYTE IDLength; /* 00h Size of Image ID field */\r
702 BYTE ColorMapType; /* 01h Color map type */\r
703 BYTE ImageType; /* 02h Image type code */\r
704 WORD CMapStart; /* 03h Color map origin */\r
705 WORD CMapLength; /* 05h Color map length */\r
706 BYTE CMapDepth; /* 07h Depth of color map entries */\r
707 WORD XOffset; /* 08h X origin of image */\r
708 WORD YOffset; /* 0Ah Y origin of image */\r
709 WORD Width; /* 0Ch Width of image */\r
710 WORD Height; /* 0Eh Height of image */\r
711 BYTE PixelDepth; /* 10h Image pixel size */\r
712 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
713 } __attribute__((packed)) TGAHEAD;\r
714 static unsigned short oldscr[320*240];\r
715 FILE *f; char name[128]; int i;\r
716\r
717 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
718 TGAHEAD.ImageType = 2;\r
719 TGAHEAD.Width = 320;\r
720 TGAHEAD.Height = 240;\r
721 TGAHEAD.PixelDepth = 16;\r
722 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
723\r
724#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
725\r
726 for (i = 0; i < 320*240; i++)\r
727 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
728 if (i < 320*240)\r
729 {\r
730 for (i = 0; i < 320*240; i++)\r
731 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
732 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
733 f = fopen(name, "wb");\r
734 if (!f) { printf("!f\n"); exit(1); }\r
735 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
736 fwrite(oldscr, 1, 320*240*2, f);\r
737 fclose(f);\r
738 }\r
739}\r
740#endif\r
741\r
742void pemu_loop_prep(void)\r
743{\r
744 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;\r
745 static int gp2x_old_gamma = 100;\r
746\r
747 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
748 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
749 set_ram_timings();\r
750 else\r
751 unset_ram_timings();\r
752 }\r
753\r
754 if (gp2x_old_clock < 0)\r
755 gp2x_old_clock = default_cpu_clock;\r
756 if (gp2x_old_clock != currentConfig.CPUclock) {\r
757 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
758 gp2x_set_cpuclk(currentConfig.CPUclock);\r
759 gp2x_old_clock = currentConfig.CPUclock;\r
760 printf(" done\n");\r
761 }\r
762\r
763 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
764 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
765 gp2x_old_gamma = currentConfig.gamma;\r
766 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
767 }\r
768\r
769 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_PSYNC) || Pico.m.pal != pal_old) {\r
770 if (currentConfig.EmuOpt & EOPT_PSYNC)\r
771 set_lcd_custom_rate(Pico.m.pal);\r
772 else\r
773 unset_lcd_custom_rate();\r
774 }\r
775\r
776 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
777 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
778\r
779 EmuOpt_old = currentConfig.EmuOpt;\r
780 pal_old = Pico.m.pal;\r
781\r
782 // make sure we are in correct mode\r
783 vidResetMode();\r
784 scaling_update();\r
785\r
786 pemu_sound_start();\r
787}\r
788\r
789void pemu_loop_end(void)\r
790{\r
791}\r
792\r
793const char *plat_get_credits(void)\r
794{\r
795 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
796 "Credits:\n"\r
797 "fDave: Cyclone 68000 core,\n"\r
798 " base code of PicoDrive\n"\r
799 "Reesy & FluBBa: DrZ80 core\n"\r
800 "MAME devs: YM2612 and SN76496 cores\n"\r
801 "rlyeh and others: minimal SDK\n"\r
802 "Squidge: mmuhack\n"\r
803 "Dzz: ARM940 sample\n"\r
804 "GnoStiC / Puck2099: USB joy code\n"\r
805 "craigix: GP2X hardware\n"\r
806 "ketchupgun: skin design\n"\r
807 "\n"\r
808 "special thanks (for docs, ideas):\n"\r
809 " Charles MacDonald, Haze,\n"\r
810 " Stephane Dallongeville,\n"\r
811 " Lordus, Exophase, Rokas,\n"\r
812 " Nemesis, Tasco Deluxe";\r
813}\r
PicoDrive's frontend in a lib