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extend mmap wrapper functionality
[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#include <unistd.h>\r
17\r
18#include "plat_gp2x.h"\r
19#include "soc.h"\r
20#include "soc_pollux.h"\r
21#include "../common/plat.h"\r
22#include "../common/menu.h"\r
23#include "../common/arm_utils.h"\r
24#include "../common/fonts.h"\r
25#include "../common/emu.h"\r
26#include "../common/config.h"\r
27#include "../common/input.h"\r
28#include "../linux/sndout_oss.h"\r
29#include "version.h"\r
30\r
31#include <pico/pico_int.h>\r
32#include <pico/patch.h>\r
33#include <pico/sound/mix.h>\r
34#include <zlib/zlib.h>\r
35\r
36#ifdef BENCHMARK\r
37#define OSD_FPS_X 220\r
38#else\r
39#define OSD_FPS_X 260\r
40#endif\r
41\r
42\r
43extern int crashed_940;\r
44\r
45static short __attribute__((aligned(4))) sndBuffer[2*(44100+100)/50];\r
46static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];\r
47unsigned char *PicoDraw2FB = PicoDraw2FB_;\r
48static int osd_fps_x, osd_y, doing_bg_frame;\r
49const char *renderer_names[] = { "16bit accurate", " 8bit accurate", " 8bit fast", NULL };\r
50const char *renderer_names32x[] = { "accurate", "faster", "fastest", NULL };\r
51enum renderer_types { RT_16BIT, RT_8BIT_ACC, RT_8BIT_FAST, RT_COUNT };\r
52\r
53static int (*emu_scan_begin)(unsigned int num) = NULL;\r
54static int (*emu_scan_end)(unsigned int num) = NULL;\r
55\r
56extern void *gp2x_screens[4];\r
57\r
58\r
59void pemu_prep_defconfig(void)\r
60{\r
61 gp2x_soc_t soc;\r
62\r
63 defaultConfig.CPUclock = default_cpu_clock;\r
64 defaultConfig.renderer32x = RT_8BIT_FAST;\r
65 defaultConfig.analog_deadzone = 50;\r
66\r
67 soc = soc_detect();\r
68 if (soc == SOCID_MMSP2)\r
69 defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r
70 else if (soc == SOCID_POLLUX) {\r
71 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;\r
72 defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX;\r
73 }\r
74}\r
75\r
76void pemu_validate_config(void)\r
77{\r
78 if (gp2x_dev_id != GP2X_DEV_GP2X)\r
79 PicoOpt &= ~POPT_EXT_FM;\r
80 if (gp2x_dev_id != GP2X_DEV_WIZ)\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 int get_renderer(void)\r
91{\r
92 if (PicoAHW & PAHW_32X)\r
93 return currentConfig.renderer32x;\r
94 else\r
95 return currentConfig.renderer;\r
96}\r
97\r
98static void change_renderer(int diff)\r
99{\r
100 int *r;\r
101 if (PicoAHW & PAHW_32X)\r
102 r = &currentConfig.renderer32x;\r
103 else\r
104 r = &currentConfig.renderer;\r
105 *r += diff;\r
106\r
107 // 8bpp fast is not there (yet?)\r
108 if ((PicoAHW & PAHW_SMS) && *r == RT_8BIT_FAST)\r
109 (*r)++;\r
110\r
111 if (*r >= RT_COUNT)\r
112 *r = 0;\r
113 else if (*r < 0)\r
114 *r = RT_COUNT - 1;\r
115}\r
116\r
117#define is_16bit_mode() \\r
118 (get_renderer() == RT_16BIT || (PicoAHW & PAHW_32X))\r
119\r
120static void (*osd_text)(int x, int y, const char *text);\r
121\r
122static void osd_text8(int x, int y, const char *text)\r
123{\r
124 int len = strlen(text)*8;\r
125 int *p, i, h, offs;\r
126\r
127 len = (len+3) >> 2;\r
128 for (h = 0; h < 8; h++) {\r
129 offs = (x + g_screen_width * (y+h)) & ~3;\r
130 p = (int *) ((char *)g_screen_ptr + offs);\r
131 for (i = len; i; i--, p++)\r
132 *p = 0xe0e0e0e0;\r
133 }\r
134 emu_text_out8(x, y, text);\r
135}\r
136\r
137static void osd_text16(int x, int y, const char *text)\r
138{\r
139 int len = strlen(text)*8;\r
140 int *p, i, h, offs;\r
141\r
142 len = (len+1) >> 1;\r
143 for (h = 0; h < 8; h++) {\r
144 offs = (x + g_screen_width * (y+h)) & ~1;\r
145 p = (int *) ((short *)g_screen_ptr + offs);\r
146 for (i = len; i; i--, p++)\r
147 *p = (*p >> 2) & 0x39e7;\r
148 }\r
149 emu_text_out16(x, y, text);\r
150}\r
151\r
152static void osd_text8_rot(int x, int y, const char *text)\r
153{\r
154 int len = strlen(text) * 8;\r
155 char *p = (char *)g_screen_ptr + 240*(320-x) + y;\r
156\r
157 while (len--) {\r
158 memset(p, 0xe0, 8);\r
159 p -= 240;\r
160 }\r
161\r
162 emu_text_out8_rot(x, y, text);\r
163}\r
164\r
165static void osd_text16_rot(int x, int y, const char *text)\r
166{\r
167 int len = strlen(text) * 8;\r
168 short *p = (short *)g_screen_ptr + 240*(320-x) + y;\r
169\r
170 while (len--) {\r
171 memset(p, 0, 8*2);\r
172 p -= 240;\r
173 }\r
174\r
175 emu_text_out16_rot(x, y, text);\r
176}\r
177\r
178static void draw_cd_leds(void)\r
179{\r
180 int led_reg, pitch, scr_offs, led_offs;\r
181 led_reg = Pico_mcd->s68k_regs[0];\r
182\r
183 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
184 pitch = 240;\r
185 led_offs = -pitch * 6;\r
186 scr_offs = pitch * (320 - 4);\r
187 } else {\r
188 pitch = 320;\r
189 led_offs = 4;\r
190 scr_offs = pitch * 2 + 4;\r
191 }\r
192\r
193 if (!is_16bit_mode()) {\r
194 #define p(x) px[(x) >> 2]\r
195 // 8-bit modes\r
196 unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);\r
197 unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
198 unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
199 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
200 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
201 #undef p\r
202 } else {\r
203 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r
204 // 16-bit modes\r
205 unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);\r
206 unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;\r
207 unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;\r
208 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r
209 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r
210 #undef p\r
211 }\r
212}\r
213\r
214static void draw_pico_ptr(void)\r
215{\r
216 unsigned short *p = (unsigned short *)g_screen_ptr;\r
217 int x, y, pitch = 320;\r
218\r
219 // only if pen enabled and for 16bit modes\r
220 if (pico_inp_mode == 0 || currentConfig.EmuOpt != RT_16BIT)\r
221 return;\r
222\r
223 x = pico_pen_x + PICO_PEN_ADJUST_X;\r
224 y = pico_pen_y + PICO_PEN_ADJUST_Y;\r
225 if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))\r
226 x += 32;\r
227\r
228 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
229 pitch = 240;\r
230 p += (319 - x) * pitch + y;\r
231 } else\r
232 p += x + y * pitch;\r
233\r
234 p[0] ^= 0xffff;\r
235 p[pitch-1] ^= 0xffff;\r
236 p[pitch] ^= 0xffff;\r
237 p[pitch+1] ^= 0xffff;\r
238 p[pitch*2] ^= 0xffff;\r
239}\r
240\r
241/* rot thing for Wiz */\r
242static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];\r
243\r
244static int EmuScanBegin16_rot(unsigned int num)\r
245{\r
246 DrawLineDest = rot_buff + (num & 3) * 320 * 2;\r
247 return 0;\r
248}\r
249\r
250static int EmuScanEnd16_rot(unsigned int num)\r
251{\r
252 if ((num & 3) != 3)\r
253 return 0;\r
254 rotated_blit16(g_screen_ptr, rot_buff, num + 1,\r
255 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));\r
256 return 0;\r
257}\r
258\r
259static int EmuScanBegin8_rot(unsigned int num)\r
260{\r
261 DrawLineDest = rot_buff + (num & 3) * 320;\r
262 return 0;\r
263}\r
264\r
265static int EmuScanEnd8_rot(unsigned int num)\r
266{\r
267 if ((num & 3) != 3)\r
268 return 0;\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
274/* line doublers */\r
275static unsigned int ld_counter;\r
276static int ld_left, ld_lines;\r
277\r
278static int EmuScanBegin16_ld(unsigned int num)\r
279{\r
280 if ((signed int)(ld_counter - num) > 100)\r
281 ld_counter = 0;\r
282\r
283 if (emu_scan_begin)\r
284 return emu_scan_begin(ld_counter);\r
285 else\r
286 DrawLineDest = (char *)g_screen_ptr + 320 * ld_counter * gp2x_current_bpp / 8;\r
287\r
288 return 0;\r
289}\r
290\r
291static int EmuScanEnd16_ld(unsigned int num)\r
292{\r
293 void *oldline = DrawLineDest;\r
294\r
295 if (emu_scan_end)\r
296 emu_scan_end(ld_counter);\r
297\r
298 ld_counter++;\r
299 ld_left--;\r
300 if (ld_left <= 0) {\r
301 ld_left = ld_lines;\r
302\r
303 EmuScanBegin16_ld(num);\r
304 memcpy32(DrawLineDest, oldline, 320 * gp2x_current_bpp / 8 / 4);\r
305 if (emu_scan_end)\r
306 emu_scan_end(ld_counter);\r
307\r
308 ld_counter++;\r
309 }\r
310\r
311 return 0;\r
312}\r
313\r
314static int localPal[0x100];\r
315static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border);\r
316static int (*make_local_pal)(int fast_mode);\r
317\r
318static int make_local_pal_md(int fast_mode)\r
319{\r
320 int pallen = 0xc0;\r
321\r
322 bgr444_to_rgb32(localPal, Pico.cram);\r
323 if (fast_mode)\r
324 return 0x40;\r
325\r
326 if (Pico.video.reg[0xC] & 8) { // shadow/hilight mode\r
327 bgr444_to_rgb32_sh(localPal, Pico.cram);\r
328 localPal[0xc0] = 0x0000c000;\r
329 localPal[0xd0] = 0x00c00000;\r
330 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
331 localPal[0xf0] = 0x00ffffff;\r
332 pallen = 0x100;\r
333 }\r
334 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
335 bgr444_to_rgb32(localPal+0x40, HighPal);\r
336 bgr444_to_rgb32(localPal+0x80, HighPal+0x40);\r
337 }\r
338 else\r
339 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
340\r
341 return pallen;\r
342}\r
343\r
344static int make_local_pal_sms(int fast_mode)\r
345{\r
346 unsigned short *spal = Pico.cram;\r
347 unsigned int *dpal = (void *)localPal;\r
348 unsigned int i, t;\r
349\r
350 for (i = 0x40; i > 0; i--) {\r
351 t = *spal++;\r
352 t = ((t & 0x0003) << 22) | ((t & 0x000c) << 12) | ((t & 0x0030) << 2);\r
353 t |= t >> 2;\r
354 t |= t >> 4;\r
355 *dpal++ = t;\r
356 }\r
357\r
358 return 0x40;\r
359}\r
360\r
361void pemu_finalize_frame(const char *fps, const char *notice)\r
362{\r
363 int emu_opt = currentConfig.EmuOpt;\r
364 int ret;\r
365\r
366 if (PicoAHW & PAHW_32X)\r
367 ; // nothing to do\r
368 else if (get_renderer() == RT_8BIT_FAST)\r
369 {\r
370 // 8bit fast renderer\r
371 if (Pico.m.dirtyPal) {\r
372 Pico.m.dirtyPal = 0;\r
373 ret = make_local_pal(1);\r
374 // feed new palette to our device\r
375 gp2x_video_setpalette(localPal, ret);\r
376 }\r
377 // a hack for VR\r
378 if (PicoAHW & PAHW_SVP)\r
379 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
380 // do actual copy\r
381 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,\r
382 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));\r
383 }\r
384 else if (get_renderer() == RT_8BIT_ACC)\r
385 {\r
386 // 8bit accurate renderer\r
387 if (Pico.m.dirtyPal)\r
388 {\r
389 Pico.m.dirtyPal = 0;\r
390 ret = make_local_pal(0);\r
391 gp2x_video_setpalette(localPal, ret);\r
392 }\r
393 }\r
394\r
395 if (notice)\r
396 osd_text(4, osd_y, notice);\r
397 if (emu_opt & EOPT_SHOW_FPS)\r
398 osd_text(osd_fps_x, osd_y, fps);\r
399 if ((PicoAHW & PAHW_MCD) && (emu_opt & EOPT_EN_CD_LEDS))\r
400 draw_cd_leds();\r
401 if (PicoAHW & PAHW_PICO)\r
402 draw_pico_ptr();\r
403}\r
404\r
405void plat_video_flip(void)\r
406{\r
407 int stride = g_screen_width;\r
408 gp2x_video_flip();\r
409\r
410 if (is_16bit_mode())\r
411 stride *= 2;\r
412 PicoDrawSetOutBuf(g_screen_ptr, stride);\r
413}\r
414\r
415/* XXX */\r
416#ifdef __GP2X__\r
417unsigned int plat_get_ticks_ms(void)\r
418{\r
419 return gp2x_get_ticks_ms();\r
420}\r
421\r
422unsigned int plat_get_ticks_us(void)\r
423{\r
424 return gp2x_get_ticks_us();\r
425}\r
426#endif\r
427\r
428void plat_wait_till_us(unsigned int us_to)\r
429{\r
430 unsigned int now;\r
431\r
432 spend_cycles(1024);\r
433 now = plat_get_ticks_us();\r
434\r
435 while ((signed int)(us_to - now) > 512)\r
436 {\r
437 spend_cycles(1024);\r
438 now = plat_get_ticks_us();\r
439 }\r
440}\r
441\r
442void plat_video_wait_vsync(void)\r
443{\r
444 gp2x_video_wait_vsync();\r
445}\r
446\r
447void plat_status_msg_clear(void)\r
448{\r
449 int is_8bit = !is_16bit_mode();\r
450 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
451 /* ugh.. */\r
452 int i, u, *p;\r
453 if (is_8bit) {\r
454 for (i = 0; i < 4; i++) {\r
455 p = (int *)gp2x_screens[i] + (240-8) / 4;\r
456 for (u = 320; u > 0; u--, p += 240/4)\r
457 p[0] = p[1] = 0xe0e0e0e0;\r
458 }\r
459 } else {\r
460 for (i = 0; i < 4; i++) {\r
461 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;\r
462 for (u = 320; u > 0; u--, p += 240*2/4)\r
463 p[0] = p[1] = p[2] = p[3] = 0;\r
464 }\r
465 }\r
466 return;\r
467 }\r
468\r
469 if (is_8bit)\r
470 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
471 else\r
472 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
473}\r
474\r
475void plat_status_msg_busy_next(const char *msg)\r
476{\r
477 plat_status_msg_clear();\r
478 pemu_finalize_frame("", msg);\r
479 plat_video_flip();\r
480 emu_status_msg("");\r
481\r
482 /* assumption: msg_busy_next gets called only when\r
483 * something slow is about to happen */\r
484 reset_timing = 1;\r
485}\r
486\r
487void plat_status_msg_busy_first(const char *msg)\r
488{\r
489 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
490 plat_status_msg_busy_next(msg);\r
491}\r
492\r
493static void vid_reset_mode(void)\r
494{\r
495 int gp2x_mode = 16;\r
496 int renderer = get_renderer();\r
497\r
498 PicoOpt &= ~POPT_ALT_RENDERER;\r
499 emu_scan_begin = NULL;\r
500 emu_scan_end = NULL;\r
501\r
502 switch (renderer) {\r
503 case RT_16BIT:\r
504 PicoDrawSetOutFormat(PDF_RGB555, 0);\r
505 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
506 break;\r
507 case RT_8BIT_ACC:\r
508 PicoDrawSetOutFormat(PDF_8BIT, 0);\r
509 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width);\r
510 gp2x_mode = 8;\r
511 break;\r
512 case RT_8BIT_FAST:\r
513 PicoOpt |= POPT_ALT_RENDERER;\r
514 PicoDrawSetOutFormat(PDF_NONE, 0);\r
515 vidcpyM2 = vidcpy_m2;\r
516 gp2x_mode = 8;\r
517 break;\r
518 default:\r
519 printf("bad renderer\n");\r
520 break;\r
521 }\r
522\r
523 if (PicoAHW & PAHW_32X) {\r
524 // Wiz 16bit is an exception, uses line rendering due to rotation mess\r
525 if (renderer == RT_16BIT && (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)) {\r
526 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
527 PicoDraw32xSetFrameMode(0, 0);\r
528 }\r
529 else {\r
530 PicoDrawSetOutFormat(PDF_NONE, 0);\r
531 PicoDraw32xSetFrameMode(1, 0);\r
532 }\r
533 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
534 gp2x_mode = 16;\r
535 }\r
536\r
537 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
538 if ((PicoAHW & PAHW_32X) || renderer == RT_16BIT) {\r
539 emu_scan_begin = EmuScanBegin16_rot;\r
540 emu_scan_end = EmuScanEnd16_rot;\r
541 }\r
542 else if (renderer == RT_8BIT_ACC) {\r
543 emu_scan_begin = EmuScanBegin8_rot;\r
544 emu_scan_end = EmuScanEnd8_rot;\r
545 }\r
546 else if (renderer == RT_8BIT_FAST)\r
547 vidcpyM2 = vidcpy_m2_rot;\r
548 }\r
549\r
550 PicoDrawSetCallbacks(emu_scan_begin, emu_scan_end);\r
551\r
552 if (is_16bit_mode())\r
553 osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text16_rot : osd_text16;\r
554 else\r
555 osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text8_rot : osd_text8;\r
556\r
557 gp2x_video_wait_vsync();\r
558 if (!is_16bit_mode()) {\r
559 // setup pal for 8-bit modes\r
560 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
561 localPal[0xd0] = 0x00c00000;\r
562 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
563 localPal[0xf0] = 0x00ffffff;\r
564 gp2x_video_setpalette(localPal, 0x100);\r
565 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
566 }\r
567 else\r
568 gp2x_memset_all_buffers(0, 0, 320*240*2);\r
569\r
570 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)\r
571 gp2x_mode = -gp2x_mode;\r
572\r
573 gp2x_video_changemode(gp2x_mode);\r
574\r
575 Pico.m.dirtyPal = 1;\r
576\r
577 PicoOpt &= ~POPT_EN_SOFTSCALE;\r
578 if (currentConfig.scaling == EOPT_SCALE_SW)\r
579 PicoOpt |= POPT_EN_SOFTSCALE;\r
580\r
581 // palette converters for 8bit modes\r
582 make_local_pal = (PicoAHW & PAHW_SMS) ? make_local_pal_sms : make_local_pal_md;\r
583}\r
584\r
585void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
586{\r
587 int scalex = 320, scaley = 240;\r
588 int ln_offs = 0;\r
589\r
590 if (doing_bg_frame)\r
591 return;\r
592\r
593 osd_fps_x = OSD_FPS_X;\r
594 osd_y = 232;\r
595\r
596 /* set up hwscaling here */\r
597 PicoOpt &= ~POPT_DIS_32C_BORDER;\r
598 if (is_32cols && currentConfig.scaling == EOPT_SCALE_HW) {\r
599 scalex = 256;\r
600 PicoOpt |= POPT_DIS_32C_BORDER;\r
601 osd_fps_x = OSD_FPS_X - 64;\r
602 }\r
603\r
604 if (currentConfig.vscaling == EOPT_SCALE_HW) {\r
605 ln_offs = start_line;\r
606 scaley = line_count;\r
607 osd_y = start_line + line_count - 8;\r
608 }\r
609\r
610 gp2x_video_RGB_setscaling(ln_offs, scalex, scaley);\r
611\r
612 /* line doubling */\r
613 if (currentConfig.vscaling == EOPT_SCALE_SW && line_count < 240) {\r
614 ld_lines = ld_left = line_count / (240 - line_count);\r
615 PicoDrawSetCallbacks(EmuScanBegin16_ld, EmuScanEnd16_ld);\r
616 }\r
617\r
618 // clear whole screen in all buffers\r
619 if (!is_16bit_mode())\r
620 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
621 else\r
622 gp2x_memset_all_buffers(0, 0, 320*240*2);\r
623}\r
624\r
625void plat_video_toggle_renderer(int change, int is_menu_call)\r
626{\r
627 change_renderer(change);\r
628\r
629 if (is_menu_call)\r
630 return;\r
631\r
632 vid_reset_mode();\r
633 rendstatus_old = -1;\r
634\r
635 if (PicoAHW & PAHW_32X)\r
636 emu_status_msg(renderer_names32x[get_renderer()]);\r
637 else\r
638 emu_status_msg(renderer_names[get_renderer()]);\r
639}\r
640\r
641#if 0 // TODO\r
642static void RunEventsPico(unsigned int events)\r
643{\r
644 int ret, px, py, lim_x;\r
645 static int pdown_frames = 0;\r
646\r
647 // for F200\r
648 ret = gp2x_touchpad_read(&px, &py);\r
649 if (ret >= 0)\r
650 {\r
651 if (ret > 35000)\r
652 {\r
653 if (pdown_frames++ > 5)\r
654 PicoPad[0] |= 0x20;\r
655\r
656 pico_pen_x = px;\r
657 pico_pen_y = py;\r
658 if (!(Pico.video.reg[12]&1)) {\r
659 pico_pen_x -= 32;\r
660 if (pico_pen_x < 0) pico_pen_x = 0;\r
661 if (pico_pen_x > 248) pico_pen_x = 248;\r
662 }\r
663 if (pico_pen_y > 224) pico_pen_y = 224;\r
664 }\r
665 else\r
666 pdown_frames = 0;\r
667\r
668 //if (ret == 0)\r
669 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
670 }\r
671}\r
672#endif\r
673\r
674void plat_update_volume(int has_changed, int is_up)\r
675{\r
676 static int prev_frame = 0, wait_frames = 0;\r
677 int vol = currentConfig.volume;\r
678 int need_low_volume = 0;\r
679 gp2x_soc_t soc;\r
680\r
681 soc = soc_detect();\r
682 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)\r
683 need_low_volume = 1;\r
684\r
685 if (has_changed)\r
686 {\r
687 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
688 wait_frames++;\r
689 else {\r
690 if (is_up) {\r
691 if (vol < 99) vol++;\r
692 } else {\r
693 if (vol > 0) vol--;\r
694 }\r
695 wait_frames = 0;\r
696 sndout_oss_setvol(vol, vol);\r
697 currentConfig.volume = vol;\r
698 }\r
699 emu_status_msg("VOL: %02i", vol);\r
700 prev_frame = Pico.m.frame_count;\r
701 }\r
702\r
703 if (!need_low_volume)\r
704 return;\r
705\r
706 /* set the right mixer func */\r
707 if (vol >= 5)\r
708 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
709 else {\r
710 mix_32_to_16l_level = 5 - vol;\r
711 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
712 }\r
713}\r
714\r
715static void oss_write_nonblocking(int len)\r
716{\r
717 // sndout_oss_can_write() is not reliable, only use with no_frmlimit\r
718 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
719 return;\r
720\r
721 sndout_oss_write_nb(PsndOut, len);\r
722}\r
723\r
724void pemu_sound_start(void)\r
725{\r
726 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
727\r
728 PsndOut = NULL;\r
729\r
730 // prepare sound stuff\r
731 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
732 {\r
733 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
734 int snd_rate_oss = PsndRate;\r
735 gp2x_soc_t soc;\r
736\r
737 memset(sndBuffer, 0, sizeof(sndBuffer));\r
738 PsndOut = sndBuffer;\r
739 PicoWriteSound = oss_write_nonblocking;\r
740 plat_update_volume(0, 0);\r
741\r
742 printf("starting audio: %i len: %i stereo: %i, pal: %i\n",\r
743 PsndRate, PsndLen, is_stereo, Pico.m.pal);\r
744 sndout_oss_start(snd_rate_oss, is_stereo, 1);\r
745 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
746\r
747 soc = soc_detect();\r
748 if (soc == SOCID_POLLUX)\r
749 PsndRate = pollux_get_real_snd_rate(PsndRate);\r
750\r
751 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)\r
752 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||\r
753 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {\r
754 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
755 }\r
756\r
757 PsndRate_old = PsndRate;\r
758 PicoOpt_old = PicoOpt;\r
759 pal_old = Pico.m.pal;\r
760 }\r
761}\r
762\r
763static const int sound_rates[] = { 44100, 32000, 22050, 16000, 11025, 8000 };\r
764\r
765void pemu_sound_stop(void)\r
766{\r
767 int i;\r
768\r
769 /* get back from Pollux pain */\r
770 PsndRate += 1000;\r
771 for (i = 0; i < ARRAY_SIZE(sound_rates); i++) {\r
772 if (PsndRate >= sound_rates[i]) {\r
773 PsndRate = sound_rates[i];\r
774 break;\r
775 }\r
776 }\r
777}\r
778\r
779void pemu_sound_wait(void)\r
780{\r
781 // don't need to do anything, writes will block by themselves\r
782}\r
783\r
784void pemu_forced_frame(int no_scale, int do_emu)\r
785{\r
786 doing_bg_frame = 1;\r
787 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
788 PicoDraw32xSetFrameMode(0, 0);\r
789 PicoDrawSetCallbacks(NULL, NULL);\r
790 Pico.m.dirtyPal = 1;\r
791\r
792 emu_cmn_forced_frame(no_scale, do_emu);\r
793\r
794 g_menubg_src_ptr = g_screen_ptr;\r
795 doing_bg_frame = 0;\r
796}\r
797\r
798void plat_debug_cat(char *str)\r
799{\r
800}\r
801\r
802#if 0\r
803static void tga_dump(void)\r
804{\r
805#define BYTE unsigned char\r
806#define WORD unsigned short\r
807 struct\r
808 {\r
809 BYTE IDLength; /* 00h Size of Image ID field */\r
810 BYTE ColorMapType; /* 01h Color map type */\r
811 BYTE ImageType; /* 02h Image type code */\r
812 WORD CMapStart; /* 03h Color map origin */\r
813 WORD CMapLength; /* 05h Color map length */\r
814 BYTE CMapDepth; /* 07h Depth of color map entries */\r
815 WORD XOffset; /* 08h X origin of image */\r
816 WORD YOffset; /* 0Ah Y origin of image */\r
817 WORD Width; /* 0Ch Width of image */\r
818 WORD Height; /* 0Eh Height of image */\r
819 BYTE PixelDepth; /* 10h Image pixel size */\r
820 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
821 } __attribute__((packed)) TGAHEAD;\r
822 static unsigned short oldscr[320*240];\r
823 FILE *f; char name[128]; int i;\r
824\r
825 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
826 TGAHEAD.ImageType = 2;\r
827 TGAHEAD.Width = 320;\r
828 TGAHEAD.Height = 240;\r
829 TGAHEAD.PixelDepth = 16;\r
830 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
831\r
832#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
833\r
834 for (i = 0; i < 320*240; i++)\r
835 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
836 if (i < 320*240)\r
837 {\r
838 for (i = 0; i < 320*240; i++)\r
839 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
840 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
841 f = fopen(name, "wb");\r
842 if (!f) { printf("!f\n"); exit(1); }\r
843 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
844 fwrite(oldscr, 1, 320*240*2, f);\r
845 fclose(f);\r
846 }\r
847}\r
848#endif\r
849\r
850void pemu_loop_prep(void)\r
851{\r
852 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;\r
853 static int gp2x_old_gamma = 100;\r
854 gp2x_soc_t soc;\r
855\r
856 soc = soc_detect();\r
857\r
858 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
859 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
860 set_ram_timings();\r
861 else\r
862 unset_ram_timings();\r
863 }\r
864\r
865 if (gp2x_old_clock < 0)\r
866 gp2x_old_clock = default_cpu_clock;\r
867 if (gp2x_old_clock != currentConfig.CPUclock && gp2x_set_cpuclk != NULL) {\r
868 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
869 gp2x_set_cpuclk(currentConfig.CPUclock);\r
870 gp2x_old_clock = currentConfig.CPUclock;\r
871 printf(" done\n");\r
872 }\r
873\r
874 if (gp2x_old_gamma != currentConfig.gamma || ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_A_SN_GAMMA)) {\r
875 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt & EOPT_A_SN_GAMMA));\r
876 gp2x_old_gamma = currentConfig.gamma;\r
877 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
878 }\r
879\r
880 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_VSYNC) || Pico.m.pal != pal_old) {\r
881 if ((currentConfig.EmuOpt & EOPT_VSYNC) || soc == SOCID_POLLUX)\r
882 set_lcd_custom_rate(Pico.m.pal);\r
883 else if (EmuOpt_old & EOPT_VSYNC)\r
884 unset_lcd_custom_rate();\r
885 }\r
886\r
887 if (gp2x_dev_id == GP2X_DEV_CAANOO)\r
888 in_set_config_int(in_name_to_id("evdev:pollux-analog"), IN_CFG_ABS_DEAD_ZONE,\r
889 currentConfig.analog_deadzone);\r
890\r
891 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
892 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
893\r
894 EmuOpt_old = currentConfig.EmuOpt;\r
895 pal_old = Pico.m.pal;\r
896\r
897 // make sure we are in correct mode\r
898 change_renderer(0);\r
899 vid_reset_mode();\r
900\r
901 // dirty buffers better go now than during gameplay\r
902 sync();\r
903 sleep(0);\r
904\r
905 pemu_sound_start();\r
906}\r
907\r
908void pemu_loop_end(void)\r
909{\r
910 pemu_sound_stop();\r
911\r
912 /* do one more frame for menu bg */\r
913 pemu_forced_frame(0, 1);\r
914}\r
915\r
PicoDrive's frontend in a lib