notaz.gp2x.de / picodrive.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
rename cd/pico.c -> cd/mcd.c
[picodrive.git] / platform / gp2x / emu.c
... / ...
CommitLineData
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#include <unistd.h>\r
17\r
18#include "../libpicofe/gp2x/plat_gp2x.h"\r
19#include "../libpicofe/gp2x/soc.h"\r
20#include "../libpicofe/input.h"\r
21#include "../libpicofe/plat.h"\r
22#include "../libpicofe/gp2x/soc_pollux.h"\r
23#include "../common/menu_pico.h"\r
24#include "../common/arm_utils.h"\r
25#include "../common/emu.h"\r
26#include "../common/config_file.h"\r
27#include "../common/version.h"\r
28#include "plat.h"\r
29\r
30#include <pico/pico_int.h>\r
31#include <pico/patch.h>\r
32#include <pico/sound/mix.h>\r
33#include <zlib/zlib.h>\r
34\r
35#ifdef BENCHMARK\r
36#define OSD_FPS_X 220\r
37#else\r
38#define OSD_FPS_X 260\r
39#endif\r
40\r
41\r
42//extern int crashed_940;\r
43\r
44static int osd_fps_x, osd_y, doing_bg_frame;\r
45const char *renderer_names[] = { "16bit accurate", " 8bit accurate", " 8bit fast", NULL };\r
46const char *renderer_names32x[] = { "accurate", "faster", "fastest", NULL };\r
47enum renderer_types { RT_16BIT, RT_8BIT_ACC, RT_8BIT_FAST, RT_COUNT };\r
48\r
49static int (*emu_scan_begin)(unsigned int num) = NULL;\r
50static int (*emu_scan_end)(unsigned int num) = NULL;\r
51\r
52\r
53void pemu_prep_defconfig(void)\r
54{\r
55 gp2x_soc_t soc;\r
56\r
57 defaultConfig.CPUclock = default_cpu_clock;\r
58 defaultConfig.renderer32x = RT_8BIT_FAST;\r
59 defaultConfig.analog_deadzone = 50;\r
60\r
61 soc = soc_detect();\r
62 if (soc == SOCID_MMSP2)\r
63 defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r
64 else if (soc == SOCID_POLLUX) {\r
65 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;\r
66 defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX;\r
67 }\r
68}\r
69\r
70void pemu_validate_config(void)\r
71{\r
72 if (gp2x_dev_id != GP2X_DEV_GP2X)\r
73 PicoOpt &= ~POPT_EXT_FM;\r
74 if (gp2x_dev_id != GP2X_DEV_WIZ)\r
75 currentConfig.EmuOpt &= ~EOPT_WIZ_TEAR_FIX;\r
76\r
77 if (currentConfig.gamma < 10 || currentConfig.gamma > 300)\r
78 currentConfig.gamma = 100;\r
79\r
80 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 1024)\r
81 currentConfig.CPUclock = default_cpu_clock;\r
82}\r
83\r
84static int get_renderer(void)\r
85{\r
86 if (PicoAHW & PAHW_32X)\r
87 return currentConfig.renderer32x;\r
88 else\r
89 return currentConfig.renderer;\r
90}\r
91\r
92static void change_renderer(int diff)\r
93{\r
94 int *r;\r
95 if (PicoAHW & PAHW_32X)\r
96 r = &currentConfig.renderer32x;\r
97 else\r
98 r = &currentConfig.renderer;\r
99 *r += diff;\r
100\r
101 // 8bpp fast is not there (yet?)\r
102 if ((PicoAHW & PAHW_SMS) && *r == RT_8BIT_FAST)\r
103 (*r)++;\r
104\r
105 if (*r >= RT_COUNT)\r
106 *r = 0;\r
107 else if (*r < 0)\r
108 *r = RT_COUNT - 1;\r
109}\r
110\r
111#define is_16bit_mode() \\r
112 (get_renderer() == RT_16BIT || (PicoAHW & PAHW_32X))\r
113\r
114static void (*osd_text)(int x, int y, const char *text);\r
115\r
116static void osd_text8(int x, int y, const char *text)\r
117{\r
118 int len = strlen(text)*8;\r
119 int *p, i, h, offs;\r
120\r
121 len = (len+3) >> 2;\r
122 for (h = 0; h < 8; h++) {\r
123 offs = (x + g_screen_width * (y+h)) & ~3;\r
124 p = (int *) ((char *)g_screen_ptr + offs);\r
125 for (i = len; i; i--, p++)\r
126 *p = 0xe0e0e0e0;\r
127 }\r
128 emu_text_out8(x, y, text);\r
129}\r
130\r
131static void osd_text16(int x, int y, const char *text)\r
132{\r
133 int len = strlen(text)*8;\r
134 int *p, i, h, offs;\r
135\r
136 len = (len+1) >> 1;\r
137 for (h = 0; h < 8; h++) {\r
138 offs = (x + g_screen_width * (y+h)) & ~1;\r
139 p = (int *) ((short *)g_screen_ptr + offs);\r
140 for (i = len; i; i--, p++)\r
141 *p = (*p >> 2) & 0x39e7;\r
142 }\r
143 emu_text_out16(x, y, text);\r
144}\r
145\r
146static void osd_text8_rot(int x, int y, const char *text)\r
147{\r
148 int len = strlen(text) * 8;\r
149 char *p = (char *)g_screen_ptr + 240*(320-x) + y;\r
150\r
151 while (len--) {\r
152 memset(p, 0xe0, 8);\r
153 p -= 240;\r
154 }\r
155\r
156 emu_text_out8_rot(x, y, text);\r
157}\r
158\r
159static void osd_text16_rot(int x, int y, const char *text)\r
160{\r
161 int len = strlen(text) * 8;\r
162 short *p = (short *)g_screen_ptr + 240*(320-x) + y;\r
163\r
164 while (len--) {\r
165 memset(p, 0, 8*2);\r
166 p -= 240;\r
167 }\r
168\r
169 emu_text_out16_rot(x, y, text);\r
170}\r
171\r
172static void draw_cd_leds(void)\r
173{\r
174 int led_reg, pitch, scr_offs, led_offs;\r
175 led_reg = Pico_mcd->s68k_regs[0];\r
176\r
177 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
178 pitch = 240;\r
179 led_offs = -pitch * 6;\r
180 scr_offs = pitch * (320 - 4);\r
181 } else {\r
182 pitch = 320;\r
183 led_offs = 4;\r
184 scr_offs = pitch * 2 + 4;\r
185 }\r
186\r
187 if (!is_16bit_mode()) {\r
188 #define p(x) px[(x) >> 2]\r
189 // 8-bit modes\r
190 unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);\r
191 unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
192 unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
193 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
194 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
195 #undef p\r
196 } else {\r
197 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r
198 // 16-bit modes\r
199 unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);\r
200 unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;\r
201 unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;\r
202 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
203 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
204 #undef p\r
205 }\r
206}\r
207\r
208static void draw_pico_ptr(void)\r
209{\r
210 unsigned short *p = (unsigned short *)g_screen_ptr;\r
211 int x, y, pitch = 320;\r
212\r
213 // only if pen enabled and for 16bit modes\r
214 if (pico_inp_mode == 0 || currentConfig.EmuOpt != RT_16BIT)\r
215 return;\r
216\r
217 x = pico_pen_x + PICO_PEN_ADJUST_X;\r
218 y = pico_pen_y + PICO_PEN_ADJUST_Y;\r
219 if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))\r
220 x += 32;\r
221\r
222 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
223 pitch = 240;\r
224 p += (319 - x) * pitch + y;\r
225 } else\r
226 p += x + y * pitch;\r
227\r
228 p[0] ^= 0xffff;\r
229 p[pitch-1] ^= 0xffff;\r
230 p[pitch] ^= 0xffff;\r
231 p[pitch+1] ^= 0xffff;\r
232 p[pitch*2] ^= 0xffff;\r
233}\r
234\r
235/* rot thing for Wiz */\r
236static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];\r
237\r
238static int EmuScanBegin16_rot(unsigned int num)\r
239{\r
240 DrawLineDest = rot_buff + (num & 3) * 320 * 2;\r
241 return 0;\r
242}\r
243\r
244static int EmuScanEnd16_rot(unsigned int num)\r
245{\r
246 if ((num & 3) != 3)\r
247 return 0;\r
248 rotated_blit16(g_screen_ptr, rot_buff, num + 1,\r
249 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));\r
250 return 0;\r
251}\r
252\r
253static int EmuScanBegin8_rot(unsigned int num)\r
254{\r
255 DrawLineDest = rot_buff + (num & 3) * 320;\r
256 return 0;\r
257}\r
258\r
259static int EmuScanEnd8_rot(unsigned int num)\r
260{\r
261 if ((num & 3) != 3)\r
262 return 0;\r
263 rotated_blit8(g_screen_ptr, rot_buff, num + 1,\r
264 !(Pico.video.reg[12] & 1));\r
265 return 0;\r
266}\r
267\r
268/* line doublers */\r
269static unsigned int ld_counter;\r
270static int ld_left, ld_lines;\r
271\r
272static int EmuScanBegin16_ld(unsigned int num)\r
273{\r
274 if ((signed int)(ld_counter - num) > 100)\r
275 ld_counter = 0;\r
276\r
277 if (emu_scan_begin)\r
278 return emu_scan_begin(ld_counter);\r
279 else\r
280 DrawLineDest = (char *)g_screen_ptr + 320 * ld_counter * gp2x_current_bpp / 8;\r
281\r
282 return 0;\r
283}\r
284\r
285static int EmuScanEnd16_ld(unsigned int num)\r
286{\r
287 void *oldline = DrawLineDest;\r
288\r
289 if (emu_scan_end)\r
290 emu_scan_end(ld_counter);\r
291\r
292 ld_counter++;\r
293 ld_left--;\r
294 if (ld_left <= 0) {\r
295 ld_left = ld_lines;\r
296\r
297 EmuScanBegin16_ld(num);\r
298 memcpy32(DrawLineDest, oldline, 320 * gp2x_current_bpp / 8 / 4);\r
299 if (emu_scan_end)\r
300 emu_scan_end(ld_counter);\r
301\r
302 ld_counter++;\r
303 }\r
304\r
305 return 0;\r
306}\r
307\r
308static int localPal[0x100];\r
309static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border);\r
310static int (*make_local_pal)(int fast_mode);\r
311\r
312static int make_local_pal_md(int fast_mode)\r
313{\r
314 int pallen = 0xc0;\r
315\r
316 bgr444_to_rgb32(localPal, Pico.cram);\r
317 if (fast_mode)\r
318 return 0x40;\r
319\r
320 if (Pico.video.reg[0xC] & 8) { // shadow/hilight mode\r
321 bgr444_to_rgb32_sh(localPal, Pico.cram);\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 pallen = 0x100;\r
327 }\r
328 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
329 bgr444_to_rgb32(localPal+0x40, HighPal);\r
330 bgr444_to_rgb32(localPal+0x80, HighPal+0x40);\r
331 }\r
332 else\r
333 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
334\r
335 return pallen;\r
336}\r
337\r
338static int make_local_pal_sms(int fast_mode)\r
339{\r
340 unsigned short *spal = Pico.cram;\r
341 unsigned int *dpal = (void *)localPal;\r
342 unsigned int i, t;\r
343\r
344 for (i = 0x40; i > 0; i--) {\r
345 t = *spal++;\r
346 t = ((t & 0x0003) << 22) | ((t & 0x000c) << 12) | ((t & 0x0030) << 2);\r
347 t |= t >> 2;\r
348 t |= t >> 4;\r
349 *dpal++ = t;\r
350 }\r
351\r
352 return 0x40;\r
353}\r
354\r
355void pemu_finalize_frame(const char *fps, const char *notice)\r
356{\r
357 int emu_opt = currentConfig.EmuOpt;\r
358 int ret;\r
359\r
360 if (PicoAHW & PAHW_32X)\r
361 ; // nothing to do\r
362 else if (get_renderer() == RT_8BIT_FAST)\r
363 {\r
364 // 8bit fast renderer\r
365 if (Pico.m.dirtyPal) {\r
366 Pico.m.dirtyPal = 0;\r
367 ret = make_local_pal(1);\r
368 // feed new palette to our device\r
369 gp2x_video_setpalette(localPal, ret);\r
370 }\r
371 // a hack for VR\r
372 if (PicoAHW & PAHW_SVP)\r
373 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
374 // do actual copy\r
375 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,\r
376 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));\r
377 }\r
378 else if (get_renderer() == RT_8BIT_ACC)\r
379 {\r
380 // 8bit accurate renderer\r
381 if (Pico.m.dirtyPal)\r
382 {\r
383 Pico.m.dirtyPal = 0;\r
384 ret = make_local_pal(0);\r
385 gp2x_video_setpalette(localPal, ret);\r
386 }\r
387 }\r
388\r
389 if (notice)\r
390 osd_text(4, osd_y, notice);\r
391 if (emu_opt & EOPT_SHOW_FPS)\r
392 osd_text(osd_fps_x, osd_y, fps);\r
393 if ((PicoAHW & PAHW_MCD) && (emu_opt & EOPT_EN_CD_LEDS))\r
394 draw_cd_leds();\r
395 if (PicoAHW & PAHW_PICO)\r
396 draw_pico_ptr();\r
397}\r
398\r
399void plat_video_flip(void)\r
400{\r
401 int stride = g_screen_width;\r
402 gp2x_video_flip();\r
403\r
404 if (is_16bit_mode())\r
405 stride *= 2;\r
406 PicoDrawSetOutBuf(g_screen_ptr, stride);\r
407}\r
408\r
409/* XXX */\r
410#ifdef __GP2X__\r
411unsigned int plat_get_ticks_ms(void)\r
412{\r
413 return gp2x_get_ticks_ms();\r
414}\r
415\r
416unsigned int plat_get_ticks_us(void)\r
417{\r
418 return gp2x_get_ticks_us();\r
419}\r
420#endif\r
421\r
422void plat_wait_till_us(unsigned int us_to)\r
423{\r
424 unsigned int now;\r
425\r
426 spend_cycles(1024);\r
427 now = plat_get_ticks_us();\r
428\r
429 while ((signed int)(us_to - now) > 512)\r
430 {\r
431 spend_cycles(1024);\r
432 now = plat_get_ticks_us();\r
433 }\r
434}\r
435\r
436void plat_video_wait_vsync(void)\r
437{\r
438 gp2x_video_wait_vsync();\r
439}\r
440\r
441void plat_status_msg_clear(void)\r
442{\r
443 int is_8bit = !is_16bit_mode();\r
444 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
445 /* ugh.. */\r
446 int i, u, *p;\r
447 if (is_8bit) {\r
448 for (i = 0; i < 4; i++) {\r
449 p = (int *)gp2x_screens[i] + (240-8) / 4;\r
450 for (u = 320; u > 0; u--, p += 240/4)\r
451 p[0] = p[1] = 0xe0e0e0e0;\r
452 }\r
453 } else {\r
454 for (i = 0; i < 4; i++) {\r
455 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;\r
456 for (u = 320; u > 0; u--, p += 240*2/4)\r
457 p[0] = p[1] = p[2] = p[3] = 0;\r
458 }\r
459 }\r
460 return;\r
461 }\r
462\r
463 if (is_8bit)\r
464 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
465 else\r
466 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
467}\r
468\r
469void plat_status_msg_busy_next(const char *msg)\r
470{\r
471 plat_status_msg_clear();\r
472 pemu_finalize_frame("", msg);\r
473 plat_video_flip();\r
474 emu_status_msg("");\r
475\r
476 /* assumption: msg_busy_next gets called only when\r
477 * something slow is about to happen */\r
478 reset_timing = 1;\r
479}\r
480\r
481void plat_status_msg_busy_first(const char *msg)\r
482{\r
483 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
484 plat_status_msg_busy_next(msg);\r
485}\r
486\r
487static void vid_reset_mode(void)\r
488{\r
489 int gp2x_mode = 16;\r
490 int renderer = get_renderer();\r
491\r
492 PicoOpt &= ~POPT_ALT_RENDERER;\r
493 emu_scan_begin = NULL;\r
494 emu_scan_end = NULL;\r
495\r
496 switch (renderer) {\r
497 case RT_16BIT:\r
498 PicoDrawSetOutFormat(PDF_RGB555, 0);\r
499 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
500 break;\r
501 case RT_8BIT_ACC:\r
502 PicoDrawSetOutFormat(PDF_8BIT, 0);\r
503 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width);\r
504 gp2x_mode = 8;\r
505 break;\r
506 case RT_8BIT_FAST:\r
507 PicoOpt |= POPT_ALT_RENDERER;\r
508 PicoDrawSetOutFormat(PDF_NONE, 0);\r
509 vidcpyM2 = vidcpy_m2;\r
510 gp2x_mode = 8;\r
511 break;\r
512 default:\r
513 printf("bad renderer\n");\r
514 break;\r
515 }\r
516\r
517 if (PicoAHW & PAHW_32X) {\r
518 // Wiz 16bit is an exception, uses line rendering due to rotation mess\r
519 if (renderer == RT_16BIT && (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)) {\r
520 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
521 }\r
522 else {\r
523 PicoDrawSetOutFormat(PDF_NONE, 0);\r
524 }\r
525 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
526 gp2x_mode = 16;\r
527 }\r
528\r
529 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
530 if ((PicoAHW & PAHW_32X) || renderer == RT_16BIT) {\r
531 emu_scan_begin = EmuScanBegin16_rot;\r
532 emu_scan_end = EmuScanEnd16_rot;\r
533 }\r
534 else if (renderer == RT_8BIT_ACC) {\r
535 emu_scan_begin = EmuScanBegin8_rot;\r
536 emu_scan_end = EmuScanEnd8_rot;\r
537 }\r
538 else if (renderer == RT_8BIT_FAST)\r
539 vidcpyM2 = vidcpy_m2_rot;\r
540 }\r
541\r
542 PicoDrawSetCallbacks(emu_scan_begin, emu_scan_end);\r
543\r
544 if (is_16bit_mode())\r
545 osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text16_rot : osd_text16;\r
546 else\r
547 osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text8_rot : osd_text8;\r
548\r
549 gp2x_video_wait_vsync();\r
550 if (!is_16bit_mode()) {\r
551 // setup pal for 8-bit modes\r
552 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
553 localPal[0xd0] = 0x00c00000;\r
554 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
555 localPal[0xf0] = 0x00ffffff;\r
556 gp2x_video_setpalette(localPal, 0x100);\r
557 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
558 }\r
559 else\r
560 gp2x_memset_all_buffers(0, 0, 320*240*2);\r
561\r
562 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)\r
563 gp2x_mode = -gp2x_mode;\r
564\r
565 gp2x_video_changemode(gp2x_mode);\r
566\r
567 Pico.m.dirtyPal = 1;\r
568\r
569 PicoOpt &= ~POPT_EN_SOFTSCALE;\r
570 if (currentConfig.scaling == EOPT_SCALE_SW)\r
571 PicoOpt |= POPT_EN_SOFTSCALE;\r
572\r
573 // palette converters for 8bit modes\r
574 make_local_pal = (PicoAHW & PAHW_SMS) ? make_local_pal_sms : make_local_pal_md;\r
575}\r
576\r
577void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
578{\r
579 int scalex = 320, scaley = 240;\r
580 int ln_offs = 0;\r
581\r
582 if (doing_bg_frame)\r
583 return;\r
584\r
585 osd_fps_x = OSD_FPS_X;\r
586 osd_y = 232;\r
587\r
588 /* set up hwscaling here */\r
589 PicoOpt &= ~POPT_DIS_32C_BORDER;\r
590 if (is_32cols && currentConfig.scaling == EOPT_SCALE_HW) {\r
591 scalex = 256;\r
592 PicoOpt |= POPT_DIS_32C_BORDER;\r
593 osd_fps_x = OSD_FPS_X - 64;\r
594 }\r
595\r
596 if (currentConfig.vscaling == EOPT_SCALE_HW) {\r
597 ln_offs = start_line;\r
598 scaley = line_count;\r
599 osd_y = start_line + line_count - 8;\r
600 }\r
601\r
602 gp2x_video_RGB_setscaling(ln_offs, scalex, scaley);\r
603\r
604 /* line doubling */\r
605 if (currentConfig.vscaling == EOPT_SCALE_SW && line_count < 240) {\r
606 ld_lines = ld_left = line_count / (240 - line_count);\r
607 PicoDrawSetCallbacks(EmuScanBegin16_ld, EmuScanEnd16_ld);\r
608 }\r
609\r
610 // clear whole screen in all buffers\r
611 if (!is_16bit_mode())\r
612 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
613 else\r
614 gp2x_memset_all_buffers(0, 0, 320*240*2);\r
615}\r
616\r
617void plat_video_toggle_renderer(int change, int is_menu_call)\r
618{\r
619 change_renderer(change);\r
620\r
621 if (is_menu_call)\r
622 return;\r
623\r
624 vid_reset_mode();\r
625 rendstatus_old = -1;\r
626\r
627 if (PicoAHW & PAHW_32X)\r
628 emu_status_msg(renderer_names32x[get_renderer()]);\r
629 else\r
630 emu_status_msg(renderer_names[get_renderer()]);\r
631}\r
632\r
633#if 0 // TODO\r
634static void RunEventsPico(unsigned int events)\r
635{\r
636 int ret, px, py, lim_x;\r
637 static int pdown_frames = 0;\r
638\r
639 // for F200\r
640 ret = gp2x_touchpad_read(&px, &py);\r
641 if (ret >= 0)\r
642 {\r
643 if (ret > 35000)\r
644 {\r
645 if (pdown_frames++ > 5)\r
646 PicoPad[0] |= 0x20;\r
647\r
648 pico_pen_x = px;\r
649 pico_pen_y = py;\r
650 if (!(Pico.video.reg[12]&1)) {\r
651 pico_pen_x -= 32;\r
652 if (pico_pen_x < 0) pico_pen_x = 0;\r
653 if (pico_pen_x > 248) pico_pen_x = 248;\r
654 }\r
655 if (pico_pen_y > 224) pico_pen_y = 224;\r
656 }\r
657 else\r
658 pdown_frames = 0;\r
659\r
660 //if (ret == 0)\r
661 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
662 }\r
663}\r
664#endif\r
665\r
666void plat_update_volume(int has_changed, int is_up)\r
667{\r
668 static int prev_frame = 0, wait_frames = 0;\r
669 int need_low_volume = 0;\r
670 int vol = currentConfig.volume;\r
671 gp2x_soc_t soc;\r
672\r
673 soc = soc_detect();\r
674 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)\r
675 need_low_volume = 1;\r
676\r
677 if (has_changed)\r
678 {\r
679 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
680 wait_frames++;\r
681 else {\r
682 wait_frames = 0;\r
683 plat_target_step_volume(&currentConfig.volume, is_up ? 1 : -1);\r
684 vol = currentConfig.volume;\r
685 }\r
686 emu_status_msg("VOL: %02i", vol);\r
687 prev_frame = Pico.m.frame_count;\r
688 }\r
689\r
690 if (!need_low_volume)\r
691 return;\r
692\r
693 /* set the right mixer func */\r
694 if (vol >= 5)\r
695 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
696 else {\r
697 mix_32_to_16l_level = 5 - vol;\r
698 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
699 }\r
700}\r
701\r
702void pemu_sound_start(void)\r
703{\r
704 emu_sound_start();\r
705\r
706 plat_target_step_volume(&currentConfig.volume, 0);\r
707\r
708#if 0\r
709 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
710\r
711 PsndOut = NULL;\r
712\r
713 // prepare sound stuff\r
714 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
715 {\r
716 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
717 int snd_rate_oss = PsndRate;\r
718 gp2x_soc_t soc;\r
719\r
720 memset(sndBuffer, 0, sizeof(sndBuffer));\r
721 PsndOut = sndBuffer;\r
722 PicoWriteSound = oss_write_nonblocking;\r
723 plat_update_volume(0, 0);\r
724\r
725 printf("starting audio: %i len: %i stereo: %i, pal: %i\n",\r
726 PsndRate, PsndLen, is_stereo, Pico.m.pal);\r
727 sndout_oss_start(snd_rate_oss, is_stereo, 1);\r
728 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
729\r
730 soc = soc_detect();\r
731 if (soc == SOCID_POLLUX)\r
732 PsndRate = pollux_get_real_snd_rate(PsndRate);\r
733\r
734 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)\r
735 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||\r
736 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {\r
737 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
738 }\r
739\r
740 PsndRate_old = PsndRate;\r
741 PicoOpt_old = PicoOpt;\r
742 pal_old = Pico.m.pal;\r
743 }\r
744#endif\r
745}\r
746\r
747static const int sound_rates[] = { 44100, 32000, 22050, 16000, 11025, 8000 };\r
748\r
749void pemu_sound_stop(void)\r
750{\r
751 int i;\r
752\r
753 /* get back from Pollux pain */\r
754 PsndRate += 1000;\r
755 for (i = 0; i < ARRAY_SIZE(sound_rates); i++) {\r
756 if (PsndRate >= sound_rates[i]) {\r
757 PsndRate = sound_rates[i];\r
758 break;\r
759 }\r
760 }\r
761}\r
762\r
763void pemu_forced_frame(int no_scale, int do_emu)\r
764{\r
765 doing_bg_frame = 1;\r
766 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
767 PicoDrawSetCallbacks(NULL, NULL);\r
768 Pico.m.dirtyPal = 1;\r
769\r
770 emu_cmn_forced_frame(no_scale, do_emu);\r
771\r
772 g_menubg_src_ptr = g_screen_ptr;\r
773 doing_bg_frame = 0;\r
774}\r
775\r
776void plat_debug_cat(char *str)\r
777{\r
778}\r
779\r
780void plat_video_loop_prepare(void) \r
781{\r
782 // make sure we are in correct mode\r
783 change_renderer(0);\r
784 vid_reset_mode();\r
785}\r
786\r
787void pemu_loop_prep(void)\r
788{\r
789 if (gp2x_dev_id == GP2X_DEV_CAANOO)\r
790 in_set_config_int(in_name_to_id("evdev:pollux-analog"),\r
791 IN_CFG_ABS_DEAD_ZONE,\r
792 currentConfig.analog_deadzone);\r
793\r
794 // dirty buffers better go now than during gameplay\r
795 sync();\r
796 sleep(0);\r
797}\r
798\r
799void pemu_loop_end(void)\r
800{\r
801 pemu_sound_stop();\r
802\r
803 /* do one more frame for menu bg */\r
804 pemu_forced_frame(0, 1);\r
805}\r
806\r
fast MegaDrive/MegaCD/32X emulator