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32x and sms savestates. Core-independent z80 state. SS bugfixing/refactoring.
[libpicofe.git] / gp2x / emu.c
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1/*\r
2 * (c) Copyright 2006-2010 notaz, All rights reserved.\r
3 *\r
4 * For performance reasons 3 renderers are exported for both MD and 32x modes:\r
5 * - 16bpp line renderer\r
6 * - 8bpp line renderer (slightly faster)\r
7 * - 8bpp tile renderer\r
8 * In 32x mode:\r
9 * - 32x layer is overlayed on top of 16bpp one\r
10 * - line internal one done on PicoDraw2FB, then mixed with 32x\r
11 * - tile internal one done on PicoDraw2FB, then mixed with 32x\r
12 */\r
13\r
14#include <stdio.h>\r
15#include <stdlib.h>\r
16\r
17#include "plat_gp2x.h"\r
18#include "soc.h"\r
19#include "../common/plat.h"\r
20#include "../common/menu.h"\r
21#include "../common/arm_utils.h"\r
22#include "../common/fonts.h"\r
23#include "../common/emu.h"\r
24#include "../common/config.h"\r
25#include "../linux/sndout_oss.h"\r
26#include "version.h"\r
27\r
28#include <pico/pico_int.h>\r
29#include <pico/patch.h>\r
30#include <pico/sound/mix.h>\r
31#include <zlib/zlib.h>\r
32\r
33#ifdef BENCHMARK\r
34#define OSD_FPS_X 220\r
35#else\r
36#define OSD_FPS_X 260\r
37#endif\r
38\r
39\r
40extern int crashed_940;\r
41\r
42static short __attribute__((aligned(4))) sndBuffer[2*(44100+100)/50];\r
43static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];\r
44unsigned char *PicoDraw2FB = PicoDraw2FB_;\r
45static int osd_fps_x, osd_y;\r
46const char *renderer_names_[] = { "16bit accurate", " 8bit accurate", " 8bit fast", NULL };\r
47const char *renderer_names32x_[] = { "accurate", "faster ", "fastest ", NULL };\r
48const char **renderer_names = renderer_names_;\r
49const char **renderer_names32x = renderer_names32x_;\r
50enum renderer_types { RT_16BIT, RT_8BIT_ACC, RT_8BIT_FAST, RT_COUNT };\r
51\r
52extern void *gp2x_screens[4];\r
53\r
54\r
55static void scaling_update(void)\r
56{\r
57 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);\r
58 switch (currentConfig.scaling) {\r
59 default:break;\r
60 case EOPT_SCALE_HW_H:\r
61 case EOPT_SCALE_HW_HV:\r
62 PicoOpt |= POPT_DIS_32C_BORDER;\r
63 break;\r
64 case EOPT_SCALE_SW_H:\r
65 PicoOpt |= POPT_EN_SOFTSCALE;\r
66 break;\r
67 }\r
68}\r
69\r
70\r
71void pemu_prep_defconfig(void)\r
72{\r
73 gp2x_soc_t soc;\r
74\r
75 defaultConfig.CPUclock = default_cpu_clock;\r
76 defaultConfig.renderer32x = RT_8BIT_FAST;\r
77\r
78 soc = soc_detect();\r
79 if (soc == SOCID_MMSP2)\r
80 defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r
81 else if (soc == SOCID_POLLUX)\r
82 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;\r
83}\r
84\r
85void pemu_validate_config(void)\r
86{\r
87 gp2x_soc_t soc;\r
88\r
89 soc = soc_detect();\r
90 if (soc != SOCID_MMSP2)\r
91 PicoOpt &= ~POPT_EXT_FM;\r
92 if (soc != SOCID_POLLUX)\r
93 currentConfig.EmuOpt &= ~EOPT_WIZ_TEAR_FIX;\r
94\r
95 if (currentConfig.gamma < 10 || currentConfig.gamma > 300)\r
96 currentConfig.gamma = 100;\r
97\r
98 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 1024)\r
99 currentConfig.CPUclock = default_cpu_clock;\r
100}\r
101\r
102static int get_renderer(void)\r
103{\r
104 if (PicoAHW & PAHW_32X)\r
105 return currentConfig.renderer32x;\r
106 else\r
107 return currentConfig.renderer;\r
108}\r
109\r
110static void change_renderer(int diff)\r
111{\r
112 int *r;\r
113 if (PicoAHW & PAHW_32X)\r
114 r = &currentConfig.renderer32x;\r
115 else\r
116 r = &currentConfig.renderer;\r
117 *r += diff;\r
118 if (*r >= RT_COUNT)\r
119 *r = 0;\r
120 else if (*r < 0)\r
121 *r = RT_COUNT - 1;\r
122}\r
123\r
124#define is_16bit_mode() \\r
125 (get_renderer() == RT_16BIT || (PicoAHW & PAHW_32X))\r
126\r
127static void (*osd_text)(int x, int y, const char *text);\r
128\r
129static void osd_text8(int x, int y, const char *text)\r
130{\r
131 int len = strlen(text)*8;\r
132 int *p, i, h, offs;\r
133\r
134 len = (len+3) >> 2;\r
135 for (h = 0; h < 8; h++) {\r
136 offs = (x + g_screen_width * (y+h)) & ~3;\r
137 p = (int *) ((char *)g_screen_ptr + offs);\r
138 for (i = len; i; i--, p++)\r
139 *p = 0xe0e0e0e0;\r
140 }\r
141 emu_text_out8(x, y, text);\r
142}\r
143\r
144static void osd_text16(int x, int y, const char *text)\r
145{\r
146 int len = strlen(text)*8;\r
147 int *p, i, h, offs;\r
148\r
149 len = (len+1) >> 1;\r
150 for (h = 0; h < 8; h++) {\r
151 offs = (x + g_screen_width * (y+h)) & ~1;\r
152 p = (int *) ((short *)g_screen_ptr + offs);\r
153 for (i = len; i; i--, p++)\r
154 *p = (*p >> 2) & 0x39e7;\r
155 }\r
156 emu_text_out16(x, y, text);\r
157}\r
158\r
159static void osd_text8_rot(int x, int y, const char *text)\r
160{\r
161 int len = strlen(text) * 8;\r
162 char *p = (char *)g_screen_ptr + 240*(320-x) + y;\r
163\r
164 while (len--) {\r
165 memset(p, 0xe0, 8);\r
166 p -= 240;\r
167 }\r
168\r
169 emu_text_out8_rot(x, y, text);\r
170}\r
171\r
172static void osd_text16_rot(int x, int y, const char *text)\r
173{\r
174 int len = strlen(text) * 8;\r
175 short *p = (short *)g_screen_ptr + 240*(320-x) + y;\r
176\r
177 while (len--) {\r
178 memset(p, 0, 8*2);\r
179 p -= 240;\r
180 }\r
181\r
182 emu_text_out16_rot(x, y, text);\r
183}\r
184\r
185static void draw_cd_leds(void)\r
186{\r
187 int led_reg, pitch, scr_offs, led_offs;\r
188 led_reg = Pico_mcd->s68k_regs[0];\r
189\r
190 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
191 pitch = 240;\r
192 led_offs = -pitch * 6;\r
193 scr_offs = pitch * (320 - 4);\r
194 } else {\r
195 pitch = 320;\r
196 led_offs = 4;\r
197 scr_offs = pitch * 2 + 4;\r
198 }\r
199\r
200 if (!is_16bit_mode()) {\r
201 #define p(x) px[(x) >> 2]\r
202 // 8-bit modes\r
203 unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);\r
204 unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
205 unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
206 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
207 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
208 #undef p\r
209 } else {\r
210 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r
211 // 16-bit modes\r
212 unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);\r
213 unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;\r
214 unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;\r
215 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
216 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
217 #undef p\r
218 }\r
219}\r
220\r
221static void draw_pico_ptr(void)\r
222{\r
223 unsigned short *p = (unsigned short *)g_screen_ptr;\r
224 int x, y, pitch = 320;\r
225\r
226 // only if pen enabled and for 16bit modes\r
227 if (pico_inp_mode == 0 || currentConfig.EmuOpt != RT_16BIT)\r
228 return;\r
229\r
230 x = pico_pen_x + PICO_PEN_ADJUST_X;\r
231 y = pico_pen_y + PICO_PEN_ADJUST_Y;\r
232 if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))\r
233 x += 32;\r
234\r
235 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
236 pitch = 240;\r
237 p += (319 - x) * pitch + y;\r
238 } else\r
239 p += x + y * pitch;\r
240\r
241 p[0] ^= 0xffff;\r
242 p[pitch-1] ^= 0xffff;\r
243 p[pitch] ^= 0xffff;\r
244 p[pitch+1] ^= 0xffff;\r
245 p[pitch*2] ^= 0xffff;\r
246}\r
247\r
248/* rot thing for Wiz */\r
249static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];\r
250\r
251static int EmuScanBegin16_rot(unsigned int num)\r
252{\r
253 DrawLineDest = rot_buff + (num & 3) * 320 * 2;\r
254 return 0;\r
255}\r
256\r
257static int EmuScanEnd16_rot(unsigned int num)\r
258{\r
259 if ((num & 3) != 3)\r
260 return 0;\r
261 rotated_blit16(g_screen_ptr, rot_buff, num + 1,\r
262 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));\r
263 return 0;\r
264}\r
265\r
266static int EmuScanBegin8_rot(unsigned int num)\r
267{\r
268 DrawLineDest = rot_buff + (num & 3) * 320;\r
269 return 0;\r
270}\r
271\r
272static int EmuScanEnd8_rot(unsigned int num)\r
273{\r
274 if ((num & 3) != 3)\r
275 return 0;\r
276 rotated_blit8(g_screen_ptr, rot_buff, num + 1,\r
277 !(Pico.video.reg[12] & 1));\r
278 return 0;\r
279}\r
280\r
281static int localPal[0x100];\r
282static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border);\r
283static int (*make_local_pal)(int fast_mode);\r
284\r
285static int make_local_pal_md(int fast_mode)\r
286{\r
287 int pallen = 0xc0;\r
288\r
289 bgr444_to_rgb32(localPal, Pico.cram);\r
290 if (fast_mode)\r
291 return 0x40;\r
292\r
293 if (Pico.video.reg[0xC] & 8) { // shadow/hilight mode\r
294 bgr444_to_rgb32_sh(localPal, Pico.cram);\r
295 localPal[0xc0] = 0x0000c000;\r
296 localPal[0xd0] = 0x00c00000;\r
297 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
298 localPal[0xf0] = 0x00ffffff;\r
299 pallen = 0x100;\r
300 }\r
301 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
302 bgr444_to_rgb32(localPal+0x40, HighPal);\r
303 bgr444_to_rgb32(localPal+0x80, HighPal+0x40);\r
304 }\r
305 else\r
306 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
307\r
308 return pallen;\r
309}\r
310\r
311static int make_local_pal_sms(int fast_mode)\r
312{\r
313 unsigned short *spal = Pico.cram;\r
314 unsigned int *dpal = (void *)localPal;\r
315 unsigned int i, t;\r
316\r
317 for (i = 0x40; i > 0; i--) {\r
318 t = *spal++;\r
319 t = ((t & 0x0003) << 22) | ((t & 0x000c) << 12) | ((t & 0x0030) << 2);\r
320 t |= t >> 2;\r
321 t |= t >> 4;\r
322 *dpal++ = t;\r
323 }\r
324\r
325 return 0x40;\r
326}\r
327\r
328void pemu_finalize_frame(const char *fps, const char *notice)\r
329{\r
330 int emu_opt = currentConfig.EmuOpt;\r
331 int ret;\r
332\r
333 if (PicoAHW & PAHW_32X)\r
334 ; // nothing to do\r
335 else if (get_renderer() == RT_8BIT_FAST)\r
336 {\r
337 // 8bit fast renderer\r
338 if (Pico.m.dirtyPal) {\r
339 Pico.m.dirtyPal = 0;\r
340 ret = make_local_pal(1);\r
341 // feed new palette to our device\r
342 gp2x_video_setpalette(localPal, ret);\r
343 }\r
344 // a hack for VR\r
345 if (PicoAHW & PAHW_SVP)\r
346 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
347 // do actual copy\r
348 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,\r
349 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));\r
350 }\r
351 else if (get_renderer() == RT_8BIT_ACC)\r
352 {\r
353 // 8bit accurate renderer\r
354 if (Pico.m.dirtyPal)\r
355 {\r
356 Pico.m.dirtyPal = 0;\r
357 ret = make_local_pal(0);\r
358 gp2x_video_setpalette(localPal, ret);\r
359 }\r
360 }\r
361\r
362 if (notice || (emu_opt & EOPT_SHOW_FPS)) {\r
363 if (notice)\r
364 osd_text(4, osd_y, notice);\r
365 if (emu_opt & 2)\r
366 osd_text(osd_fps_x, osd_y, fps);\r
367 }\r
368 if ((PicoAHW & PAHW_MCD) && (emu_opt & EOPT_EN_CD_LEDS))\r
369 draw_cd_leds();\r
370 if (PicoAHW & PAHW_PICO)\r
371 draw_pico_ptr();\r
372}\r
373\r
374void plat_video_flip(void)\r
375{\r
376 int stride = g_screen_width;\r
377 gp2x_video_flip();\r
378\r
379 if (is_16bit_mode())\r
380 stride *= 2;\r
381 PicoDrawSetOutBuf(g_screen_ptr, stride);\r
382}\r
383\r
384/* XXX */\r
385#ifdef __GP2X__\r
386unsigned int plat_get_ticks_ms(void)\r
387{\r
388 return gp2x_get_ticks_ms();\r
389}\r
390\r
391unsigned int plat_get_ticks_us(void)\r
392{\r
393 return gp2x_get_ticks_us();\r
394}\r
395#endif\r
396\r
397void plat_wait_till_us(unsigned int us_to)\r
398{\r
399 unsigned int now;\r
400\r
401 spend_cycles(1024);\r
402 now = plat_get_ticks_us();\r
403\r
404 while ((signed int)(us_to - now) > 512)\r
405 {\r
406 spend_cycles(1024);\r
407 now = plat_get_ticks_us();\r
408 }\r
409}\r
410\r
411void plat_video_wait_vsync(void)\r
412{\r
413 gp2x_video_wait_vsync();\r
414}\r
415\r
416void plat_status_msg_clear(void)\r
417{\r
418 int is_8bit = !is_16bit_mode();\r
419 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
420 /* ugh.. */\r
421 int i, u, *p;\r
422 if (is_8bit) {\r
423 for (i = 0; i < 4; i++) {\r
424 p = (int *)gp2x_screens[i] + (240-8) / 4;\r
425 for (u = 320; u > 0; u--, p += 240/4)\r
426 p[0] = p[1] = 0xe0e0e0e0;\r
427 }\r
428 } else {\r
429 for (i = 0; i < 4; i++) {\r
430 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;\r
431 for (u = 320; u > 0; u--, p += 240*2/4)\r
432 p[0] = p[1] = p[2] = p[3] = 0;\r
433 }\r
434 }\r
435 return;\r
436 }\r
437\r
438 if (is_8bit)\r
439 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
440 else\r
441 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
442}\r
443\r
444void plat_status_msg_busy_next(const char *msg)\r
445{\r
446 plat_status_msg_clear();\r
447 pemu_finalize_frame("", msg);\r
448 plat_video_flip();\r
449 emu_status_msg("");\r
450\r
451 /* assumption: msg_busy_next gets called only when\r
452 * something slow is about to happen */\r
453 reset_timing = 1;\r
454}\r
455\r
456void plat_status_msg_busy_first(const char *msg)\r
457{\r
458 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
459 plat_status_msg_busy_next(msg);\r
460}\r
461\r
462static void vidResetMode(void)\r
463{\r
464 int gp2x_mode = 16;\r
465 int renderer = get_renderer();\r
466\r
467 PicoScanBegin = NULL;\r
468 PicoScanEnd = NULL;\r
469\r
470 switch (renderer) {\r
471 case RT_16BIT:\r
472 PicoOpt &= ~POPT_ALT_RENDERER;\r
473 PicoDrawSetOutFormat(PDF_RGB555, 0);\r
474 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
475 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
476 PicoScanBegin = EmuScanBegin16_rot;\r
477 PicoScanEnd = EmuScanEnd16_rot;\r
478 }\r
479 break;\r
480 case RT_8BIT_ACC:\r
481 PicoOpt &= ~POPT_ALT_RENDERER;\r
482 PicoDrawSetOutFormat(PDF_8BIT, 0);\r
483 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width);\r
484 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
485 PicoScanBegin = EmuScanBegin8_rot;\r
486 PicoScanEnd = EmuScanEnd8_rot;\r
487 }\r
488 gp2x_mode = 8;\r
489 break;\r
490 case RT_8BIT_FAST:\r
491 PicoOpt |= POPT_ALT_RENDERER;\r
492 PicoDrawSetOutFormat(PDF_NONE, 0);\r
493 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)\r
494 vidcpyM2 = vidcpy_m2_rot;\r
495 else\r
496 vidcpyM2 = vidcpy_m2;\r
497 gp2x_mode = 8;\r
498 break;\r
499 }\r
500\r
501 if (is_16bit_mode())\r
502 osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text16_rot : osd_text16;\r
503 else\r
504 osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text8_rot : osd_text8;\r
505\r
506 if (PicoAHW & PAHW_32X) {\r
507 // rules change in 32X world\r
508 if (renderer != RT_16BIT) {\r
509 PicoDrawSetOutFormat(PDF_NONE, 0);\r
510 PicoScanBegin = NULL;\r
511 PicoScanEnd = NULL;\r
512 }\r
513 PicoScan32xBegin = NULL;\r
514 PicoScan32xEnd = NULL;\r
515 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
516 PicoScan32xBegin = EmuScanBegin16_rot;\r
517 PicoScan32xEnd = EmuScanEnd16_rot;\r
518 }\r
519 // Wiz 16bit is an exception, uses line rendering due to rotation mess\r
520 if (renderer == RT_16BIT && (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)) {\r
521 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
522 PicoDraw32xSetFrameMode(0, 0);\r
523 }\r
524 else {\r
525 PicoDraw32xSetFrameMode(1, (renderer == RT_16BIT) ? 1 : 0);\r
526 }\r
527 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
528 gp2x_mode = 16;\r
529 }\r
530\r
531 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)\r
532 gp2x_mode = -gp2x_mode;\r
533 gp2x_video_changemode(gp2x_mode);\r
534\r
535 if (!is_16bit_mode()) {\r
536 // setup pal for 8-bit modes\r
537 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
538 localPal[0xd0] = 0x00c00000;\r
539 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
540 localPal[0xf0] = 0x00ffffff;\r
541 gp2x_video_setpalette(localPal, 0x100);\r
542 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
543 gp2x_video_flip();\r
544 }\r
545 Pico.m.dirtyPal = 1;\r
546\r
547 // reset scaling\r
548 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
549 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
550 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
551\r
552 // palette converters for 8bit modes\r
553 make_local_pal = (PicoAHW & PAHW_SMS) ? make_local_pal_sms : make_local_pal_md;\r
554}\r
555\r
556void plat_video_toggle_renderer(int change, int is_menu_call)\r
557{\r
558 change_renderer(change);\r
559\r
560 if (is_menu_call)\r
561 return;\r
562\r
563 vidResetMode();\r
564 rendstatus_old = -1;\r
565\r
566 if (PicoAHW & PAHW_32X)\r
567 emu_status_msg(renderer_names32x[get_renderer()]);\r
568 else\r
569 emu_status_msg(renderer_names[get_renderer()]);\r
570}\r
571\r
572#if 0 // TODO\r
573static void RunEventsPico(unsigned int events)\r
574{\r
575 int ret, px, py, lim_x;\r
576 static int pdown_frames = 0;\r
577\r
578 // for F200\r
579 ret = gp2x_touchpad_read(&px, &py);\r
580 if (ret >= 0)\r
581 {\r
582 if (ret > 35000)\r
583 {\r
584 if (pdown_frames++ > 5)\r
585 PicoPad[0] |= 0x20;\r
586\r
587 pico_pen_x = px;\r
588 pico_pen_y = py;\r
589 if (!(Pico.video.reg[12]&1)) {\r
590 pico_pen_x -= 32;\r
591 if (pico_pen_x < 0) pico_pen_x = 0;\r
592 if (pico_pen_x > 248) pico_pen_x = 248;\r
593 }\r
594 if (pico_pen_y > 224) pico_pen_y = 224;\r
595 }\r
596 else\r
597 pdown_frames = 0;\r
598\r
599 //if (ret == 0)\r
600 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
601 }\r
602}\r
603#endif\r
604\r
605void plat_update_volume(int has_changed, int is_up)\r
606{\r
607 static int prev_frame = 0, wait_frames = 0;\r
608 int vol = currentConfig.volume;\r
609 int need_low_volume = 0;\r
610 gp2x_soc_t soc;\r
611\r
612 soc = soc_detect();\r
613 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)\r
614 need_low_volume = 1;\r
615\r
616 if (has_changed)\r
617 {\r
618 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
619 wait_frames++;\r
620 else {\r
621 if (is_up) {\r
622 if (vol < 99) vol++;\r
623 } else {\r
624 if (vol > 0) vol--;\r
625 }\r
626 wait_frames = 0;\r
627 sndout_oss_setvol(vol, vol);\r
628 currentConfig.volume = vol;\r
629 }\r
630 emu_status_msg("VOL: %02i", vol);\r
631 prev_frame = Pico.m.frame_count;\r
632 }\r
633\r
634 if (!need_low_volume)\r
635 return;\r
636\r
637 /* set the right mixer func */\r
638 if (vol >= 5)\r
639 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
640 else {\r
641 mix_32_to_16l_level = 5 - vol;\r
642 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
643 }\r
644}\r
645\r
646static void updateSound(int len)\r
647{\r
648 len <<= 1;\r
649 if (PicoOpt & POPT_EN_STEREO)\r
650 len <<= 1;\r
651\r
652 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
653 return;\r
654\r
655 /* avoid writing audio when lagging behind to prevent audio lag */\r
656 if (PicoSkipFrame != 2)\r
657 sndout_oss_write(PsndOut, len);\r
658}\r
659\r
660void pemu_sound_start(void)\r
661{\r
662 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
663\r
664 PsndOut = NULL;\r
665\r
666 // prepare sound stuff\r
667 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
668 {\r
669 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
670 int target_fps = Pico.m.pal ? 50 : 60;\r
671 int frame_samples, snd_excess_add;\r
672 int snd_rate_oss = PsndRate;\r
673 gp2x_soc_t soc;\r
674\r
675 soc = soc_detect();\r
676 if (soc == SOCID_POLLUX) {\r
677 /* POLLUX pain: DPLL1 / mclk_div / bitclk_div / 4 */\r
678 switch (PsndRate) {\r
679 case 44100: PsndRate = 44171; break; // 44170.673077\r
680 case 22050: PsndRate = 22086; break; // 22085.336538\r
681 case 11025: PsndRate = 11043; break; // 11042.668269\r
682 default: break;\r
683 }\r
684 }\r
685\r
686 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)\r
687 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||\r
688 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {\r
689 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
690 }\r
691\r
692 memset(sndBuffer, 0, sizeof(sndBuffer));\r
693 PsndOut = sndBuffer;\r
694 PicoWriteSound = updateSound;\r
695 PsndRate_old = PsndRate;\r
696 PicoOpt_old = PicoOpt;\r
697 pal_old = Pico.m.pal;\r
698 plat_update_volume(0, 0);\r
699\r
700 frame_samples = PsndLen;\r
701 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r
702 if (snd_excess_add != 0)\r
703 frame_samples++;\r
704 if (soc == SOCID_POLLUX)\r
705 frame_samples *= 2; /* force larger buffer */\r
706\r
707 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
708 PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r
709 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
710 sndout_oss_start(snd_rate_oss, frame_samples, is_stereo);\r
711\r
712 /* Wiz's sound hardware needs more prebuffer */\r
713 if (soc == SOCID_POLLUX)\r
714 updateSound(frame_samples);\r
715 }\r
716}\r
717\r
718void pemu_sound_stop(void)\r
719{\r
720 /* get back from Wiz pain */\r
721 switch (PsndRate) {\r
722 case 44171: PsndRate = 44100; break;\r
723 case 22086: PsndRate = 22050; break;\r
724 case 11043: PsndRate = 11025; break;\r
725 default: break;\r
726 }\r
727}\r
728\r
729void pemu_sound_wait(void)\r
730{\r
731 // don't need to do anything, writes will block by themselves\r
732}\r
733\r
734\r
735void pemu_forced_frame(int opts)\r
736{\r
737 int po_old = PicoOpt;\r
738\r
739 PicoOpt &= ~POPT_ALT_RENDERER;\r
740 PicoOpt |= opts|POPT_ACC_SPRITES;\r
741\r
742 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
743 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
744 PicoDraw32xSetFrameMode(0, 0);\r
745 PicoScanBegin = NULL;\r
746 PicoScanEnd = NULL;\r
747 Pico.m.dirtyPal = 1;\r
748 PicoFrameDrawOnly();\r
749\r
750 PicoOpt = po_old;\r
751}\r
752\r
753void plat_debug_cat(char *str)\r
754{\r
755}\r
756\r
757void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
758{\r
759 int scalex = 320;\r
760 osd_fps_x = OSD_FPS_X;\r
761 osd_y = 232;\r
762 if (is_32cols && (PicoOpt & POPT_DIS_32C_BORDER)) {\r
763 scalex = 256;\r
764 osd_fps_x = OSD_FPS_X - 64;\r
765 }\r
766\r
767 /* want vertical scaling and game is not in 240 line mode */\r
768 if (currentConfig.scaling == EOPT_SCALE_HW_HV) {\r
769 gp2x_video_RGB_setscaling(start_line, scalex, line_count);\r
770 osd_y = start_line + line_count - 8;\r
771 } else\r
772 gp2x_video_RGB_setscaling(0, scalex, 240);\r
773\r
774 // clear whole screen in all buffers\r
775 if (!is_16bit_mode())\r
776 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
777 else\r
778 gp2x_memset_all_buffers(0, 0, 320*240*2);\r
779}\r
780\r
781#if 0\r
782static void tga_dump(void)\r
783{\r
784#define BYTE unsigned char\r
785#define WORD unsigned short\r
786 struct\r
787 {\r
788 BYTE IDLength; /* 00h Size of Image ID field */\r
789 BYTE ColorMapType; /* 01h Color map type */\r
790 BYTE ImageType; /* 02h Image type code */\r
791 WORD CMapStart; /* 03h Color map origin */\r
792 WORD CMapLength; /* 05h Color map length */\r
793 BYTE CMapDepth; /* 07h Depth of color map entries */\r
794 WORD XOffset; /* 08h X origin of image */\r
795 WORD YOffset; /* 0Ah Y origin of image */\r
796 WORD Width; /* 0Ch Width of image */\r
797 WORD Height; /* 0Eh Height of image */\r
798 BYTE PixelDepth; /* 10h Image pixel size */\r
799 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
800 } __attribute__((packed)) TGAHEAD;\r
801 static unsigned short oldscr[320*240];\r
802 FILE *f; char name[128]; int i;\r
803\r
804 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
805 TGAHEAD.ImageType = 2;\r
806 TGAHEAD.Width = 320;\r
807 TGAHEAD.Height = 240;\r
808 TGAHEAD.PixelDepth = 16;\r
809 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
810\r
811#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
812\r
813 for (i = 0; i < 320*240; i++)\r
814 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
815 if (i < 320*240)\r
816 {\r
817 for (i = 0; i < 320*240; i++)\r
818 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
819 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
820 f = fopen(name, "wb");\r
821 if (!f) { printf("!f\n"); exit(1); }\r
822 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
823 fwrite(oldscr, 1, 320*240*2, f);\r
824 fclose(f);\r
825 }\r
826}\r
827#endif\r
828\r
829void pemu_loop_prep(void)\r
830{\r
831 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;\r
832 static int gp2x_old_gamma = 100;\r
833 gp2x_soc_t soc;\r
834\r
835 soc = soc_detect();\r
836\r
837 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
838 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
839 set_ram_timings();\r
840 else\r
841 unset_ram_timings();\r
842 }\r
843\r
844 if (gp2x_old_clock < 0)\r
845 gp2x_old_clock = default_cpu_clock;\r
846 if (gp2x_old_clock != currentConfig.CPUclock) {\r
847 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
848 gp2x_set_cpuclk(currentConfig.CPUclock);\r
849 gp2x_old_clock = currentConfig.CPUclock;\r
850 printf(" done\n");\r
851 }\r
852\r
853 if (gp2x_old_gamma != currentConfig.gamma || ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_A_SN_GAMMA)) {\r
854 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt & EOPT_A_SN_GAMMA));\r
855 gp2x_old_gamma = currentConfig.gamma;\r
856 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
857 }\r
858\r
859 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_VSYNC) || Pico.m.pal != pal_old) {\r
860 if ((currentConfig.EmuOpt & EOPT_VSYNC) || soc == SOCID_POLLUX)\r
861 set_lcd_custom_rate(Pico.m.pal);\r
862 else if (EmuOpt_old & EOPT_VSYNC)\r
863 unset_lcd_custom_rate();\r
864 }\r
865\r
866 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
867 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
868\r
869 EmuOpt_old = currentConfig.EmuOpt;\r
870 pal_old = Pico.m.pal;\r
871\r
872 // make sure we are in correct mode\r
873 vidResetMode();\r
874 scaling_update();\r
875\r
876 pemu_sound_start();\r
877}\r
878\r
879void pemu_loop_end(void)\r
880{\r
881 int po_old = PicoOpt;\r
882 int eo_old = currentConfig.EmuOpt;\r
883\r
884 pemu_sound_stop();\r
885 memset32(g_screen_ptr, 0, 320*240*2/4);\r
886\r
887 /* do one more frame for menu bg */\r
888 PicoOpt &= ~POPT_ALT_RENDERER;\r
889 PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r
890\r
891 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
892 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
893 PicoDraw32xSetFrameMode(0, 0);\r
894 PicoScanBegin = NULL;\r
895 PicoScanEnd = NULL;\r
896 Pico.m.dirtyPal = 1;\r
897 PicoFrame();\r
898\r
899 PicoOpt = po_old;\r
900 currentConfig.EmuOpt = eo_old;\r
901}\r
902\r
903const char *plat_get_credits(void)\r
904{\r
905 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
906 "Credits:\n"\r
907 "fDave: Cyclone 68000 core,\n"\r
908 " base code of PicoDrive\n"\r
909 "Reesy & FluBBa: DrZ80 core\n"\r
910 "MAME devs: YM2612 and SN76496 cores\n"\r
911 "rlyeh and others: minimal SDK\n"\r
912 "Squidge: mmuhack\n"\r
913 "Dzz: ARM940 sample\n"\r
914 "GnoStiC / Puck2099: USB joy code\n"\r
915 "craigix: GP2X hardware\n"\r
916 "ketchupgun: skin design\n"\r
917 "\n"\r
918 "special thanks (for docs, ideas):\n"\r
919 " Charles MacDonald, Haze,\n"\r
920 " Stephane Dallongeville,\n"\r
921 " Lordus, Exophase, Rokas,\n"\r
922 " Nemesis, Tasco Deluxe";\r
923}\r
PicoDrive's frontend in a lib