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sms wip: initial graphics support
[picodrive.git] / platform / gp2x / emu.c
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bcd94522 1// (c) Copyright 2006-2009 notaz, All rights reserved.\r
cc68a136 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
cc68a136 8\r
0d9bf4fc 9#include "plat_gp2x.h"\r
42171343 10#include "soc.h"\r
bcd94522 11#include "../common/plat.h"\r
991473ad 12#include "../common/menu.h"\r
e5f426aa 13#include "../common/arm_utils.h"\r
14#include "../common/fonts.h"\r
ea8c405f 15#include "../common/emu.h"\r
58c86d00 16#include "../common/config.h"\r
e5ab6faf 17#include "../linux/sndout_oss.h"\r
713c9224 18#include "version.h"\r
cc68a136 19\r
efcba75f 20#include <pico/pico_int.h>\r
21#include <pico/patch.h>\r
22#include <pico/sound/mix.h>\r
b67ef287 23#include <zlib/zlib.h>\r
cc68a136 24\r
1dceadae 25//#define PFRAMES\r
cc68a136 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
cc68a136 33\r
cc68a136 34extern int crashed_940;\r
35\r
02da059d 36static short __attribute__((aligned(4))) sndBuffer[2*(44100+100)/50];\r
f2cf8472 37static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];\r
38unsigned char *PicoDraw2FB = PicoDraw2FB_;\r
cc41eb4f 39static int osd_fps_x;\r
cc68a136 40\r
cc41eb4f 41extern void *gp2x_screens[4];\r
cc68a136 42\r
f2cf8472 43int plat_get_root_dir(char *dst, int len)\r
8c1952f0 44{\r
ea8c405f 45 extern char **g_argv;\r
46 int j;\r
8c1952f0 47\r
ea8c405f 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
ca482e5d 54\r
55 return j + 1;\r
8c1952f0 56}\r
57\r
cc68a136 58\r
ea8c405f 59static void scaling_update(void)\r
2433f409 60{\r
ee2a3bdf 61 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);\r
2433f409 62 switch (currentConfig.scaling) {\r
ee2a3bdf 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
2433f409 71 }\r
72}\r
73\r
74\r
f2cf8472 75void pemu_prep_defconfig(void)\r
58c86d00 76{\r
ee2a3bdf 77 gp2x_soc_t soc;\r
78\r
58c86d00 79 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
cc41eb4f 80 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_CONFIRM_SAVE|EOPT_EN_CD_LEDS;\r
ee2a3bdf 81 defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;\r
58c86d00 82 defaultConfig.s_PsndRate = 44100;\r
83 defaultConfig.s_PicoRegion = 0; // auto\r
84 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
2d2247c2 85 defaultConfig.s_PicoCDBuffers = 0;\r
58c86d00 86 defaultConfig.Frameskip = -1; // auto\r
ee2a3bdf 87 defaultConfig.CPUclock = default_cpu_clock;\r
58c86d00 88 defaultConfig.volume = 50;\r
58c86d00 89 defaultConfig.gamma = 100;\r
90 defaultConfig.scaling = 0;\r
f0f0d2df 91 defaultConfig.turbo_rate = 15;\r
ee2a3bdf 92\r
93 soc = soc_detect();\r
94 if (soc == SOCID_MMSP2)\r
95 defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r
cc41eb4f 96 else if (soc == SOCID_POLLUX)\r
61753a67 97 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;\r
58c86d00 98}\r
99\r
cc41eb4f 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
cc68a136 103{\r
104 int len = strlen(text)*8;\r
e2de9939 105 int *p, i, h, offs;\r
cc68a136 106\r
cc41eb4f 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
cc68a136 140 }\r
cc41eb4f 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
cc68a136 156}\r
157\r
213c16ad 158static void draw_cd_leds(void)\r
bf098bc5 159{\r
cc41eb4f 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
bf098bc5 172\r
d34a42f9 173 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
cc41eb4f 174 #define p(x) px[(x) >> 2]\r
bf098bc5 175 // 8-bit modes\r
cc41eb4f 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
bf098bc5 182 } else {\r
cc41eb4f 183 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r
bf098bc5 184 // 16-bit modes\r
cc41eb4f 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
bf098bc5 191 }\r
192}\r
193\r
213c16ad 194static void draw_pico_ptr(void)\r
195{\r
e2de9939 196 unsigned short *p = (unsigned short *)g_screen_ptr;\r
cc41eb4f 197 int x, y, pitch = 320;\r
213c16ad 198\r
199 // only if pen enabled and for 16bit modes\r
cc41eb4f 200 if (pico_inp_mode == 0 || (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))\r
201 return;\r
213c16ad 202\r
cc41eb4f 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
213c16ad 207\r
02da059d 208 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
cc41eb4f 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
213c16ad 219}\r
220\r
602133e1 221static int EmuScanBegin16(unsigned int num)\r
cc68a136 222{\r
223 if (!(Pico.video.reg[1]&8)) num += 8;\r
e2de9939 224 DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;\r
cc68a136 225\r
226 return 0;\r
227}\r
228\r
602133e1 229static int EmuScanBegin8(unsigned int num)\r
cc68a136 230{\r
231 if (!(Pico.video.reg[1]&8)) num += 8;\r
e2de9939 232 DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;\r
cc68a136 233\r
234 return 0;\r
235}\r
236\r
cc41eb4f 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
e11c5548 274int localPal[0x100];\r
cc41eb4f 275static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border) = NULL;\r
cc68a136 276\r
b24e0f6c 277void pemu_update_display(const char *fps, const char *notice)\r
cc68a136 278{\r
bf098bc5 279 int emu_opt = currentConfig.EmuOpt;\r
280\r
d34a42f9 281 if (PicoOpt & POPT_ALT_RENDERER)\r
fad24893 282 {\r
cc68a136 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
fad24893 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
cc41eb4f 294 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,\r
295 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));\r
fad24893 296 }\r
d34a42f9 297 else if (!(emu_opt & EOPT_16BPP))\r
fad24893 298 {\r
cc68a136 299 // 8bit accurate renderer\r
602133e1 300 if (Pico.m.dirtyPal)\r
301 {\r
f8af9634 302 int pallen = 0xc0;\r
cc68a136 303 Pico.m.dirtyPal = 0;\r
e5fa9817 304 if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
305 {\r
cc68a136 306 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
307 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
308 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
7b802576 309 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
e5fa9817 310 pallen = 0x100;\r
311 }\r
e5fa9817 312 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
cc68a136 313 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
314 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
315 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
e5fa9817 316 }\r
317 else {\r
cc68a136 318 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
f8af9634 319 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
cc68a136 320 }\r
e5fa9817 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
cc68a136 328 }\r
329 }\r
330\r
2433f409 331 if (notice || (emu_opt & 2)) {\r
332 int h = 232;\r
ee2a3bdf 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
2433f409 337 if (emu_opt & 2)\r
338 osd_text(osd_fps_x, h, fps);\r
339 }\r
602133e1 340 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
213c16ad 341 draw_cd_leds();\r
342 if (PicoAHW & PAHW_PICO)\r
343 draw_pico_ptr();\r
cc68a136 344\r
cc68a136 345 gp2x_video_flip();\r
cc68a136 346}\r
347\r
b24e0f6c 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
cc68a136 381{\r
cc41eb4f 382 int is_8bit = (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP);\r
b24e0f6c 383 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
cc41eb4f 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
b24e0f6c 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
cc68a136 406}\r
407\r
d34a42f9 408void plat_status_msg_busy_next(const char *msg)\r
409{\r
b24e0f6c 410 plat_status_msg_clear();\r
411 pemu_update_display("", msg);\r
7c34867a 412 emu_status_msg("");\r
d34a42f9 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
cc68a136 424\r
425static void vidResetMode(void)\r
426{\r
cc41eb4f 427 PicoScanEnd = NULL;\r
428\r
d34a42f9 429 if (PicoOpt & POPT_ALT_RENDERER) {\r
cc41eb4f 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
cc68a136 441 PicoDrawSetColorFormat(1);\r
200772b7 442 PicoDrawSetColorFormatMode4(1);\r
cc41eb4f 443 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
444 gp2x_video_changemode(-16);\r
445 PicoScanBegin = EmuScanBegin16_rot;\r
446 PicoScanEnd = EmuScanEnd16_rot;\r
447 osd_text = osd_text16_rot;\r
448 } else {\r
449 gp2x_video_changemode(16);\r
450 PicoScanBegin = EmuScanBegin16;\r
451 osd_text = osd_text16;\r
452 }\r
453 }\r
454 else {\r
bf098bc5 455 PicoDrawSetColorFormat(2);\r
cc41eb4f 456 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {\r
457 gp2x_video_changemode(-8);\r
458 PicoScanBegin = EmuScanBegin8_rot;\r
459 PicoScanEnd = EmuScanEnd8_rot;\r
460 osd_text = osd_text8_rot;\r
461 } else {\r
462 gp2x_video_changemode(8);\r
463 PicoScanBegin = EmuScanBegin8;\r
464 osd_text = osd_text8;\r
465 }\r
bf098bc5 466 }\r
cc41eb4f 467\r
d34a42f9 468 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r
bf098bc5 469 // setup pal for 8-bit modes\r
470 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
471 localPal[0xd0] = 0x00c00000;\r
cc68a136 472 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
473 localPal[0xf0] = 0x00ffffff;\r
cc68a136 474 gp2x_video_setpalette(localPal, 0x100);\r
475 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
476 gp2x_video_flip();\r
cc68a136 477 }\r
478 Pico.m.dirtyPal = 1;\r
cc41eb4f 479\r
cc68a136 480 // reset scaling\r
ee2a3bdf 481 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r
2433f409 482 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
483 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
cc68a136 484}\r
485\r
d90f5bd7 486void plat_video_toggle_renderer(int is_next, int is_menu)\r
66fdc0f0 487{\r
d90f5bd7 488 /* alt, 16bpp, 8bpp */\r
d34a42f9 489 if (PicoOpt & POPT_ALT_RENDERER) {\r
490 PicoOpt &= ~POPT_ALT_RENDERER;\r
d90f5bd7 491 if (is_next)\r
492 currentConfig.EmuOpt |= EOPT_16BPP;\r
493 } else if (!(currentConfig.EmuOpt & EOPT_16BPP)) {\r
494 if (is_next)\r
495 PicoOpt |= POPT_ALT_RENDERER;\r
496 else\r
497 currentConfig.EmuOpt |= EOPT_16BPP;\r
498 } else {\r
d34a42f9 499 currentConfig.EmuOpt &= ~EOPT_16BPP;\r
d90f5bd7 500 if (!is_next)\r
501 PicoOpt |= POPT_ALT_RENDERER;\r
502 }\r
503\r
504 if (is_menu)\r
505 return;\r
7a1f6e45 506\r
d34a42f9 507 vidResetMode();\r
66fdc0f0 508\r
d34a42f9 509 if (PicoOpt & POPT_ALT_RENDERER) {\r
b24e0f6c 510 emu_status_msg(" 8bit fast renderer");\r
d34a42f9 511 } else if (currentConfig.EmuOpt & EOPT_16BPP) {\r
b24e0f6c 512 emu_status_msg("16bit accurate renderer");\r
d34a42f9 513 } else {\r
b24e0f6c 514 emu_status_msg(" 8bit accurate renderer");\r
d34a42f9 515 }\r
fa1e5e29 516}\r
517\r
f2cf8472 518#if 0 // TODO\r
991473ad 519static void RunEventsPico(unsigned int events)\r
406c96c5 520{\r
f0f0d2df 521 int ret, px, py, lim_x;\r
85a4b5a4 522 static int pdown_frames = 0;\r
523\r
85a4b5a4 524 // for F200\r
525 ret = gp2x_touchpad_read(&px, &py);\r
f0f0d2df 526 if (ret >= 0)\r
527 {\r
528 if (ret > 35000)\r
529 {\r
85a4b5a4 530 if (pdown_frames++ > 5)\r
531 PicoPad[0] |= 0x20;\r
532\r
533 pico_pen_x = px;\r
534 pico_pen_y = py;\r
535 if (!(Pico.video.reg[12]&1)) {\r
536 pico_pen_x -= 32;\r
537 if (pico_pen_x < 0) pico_pen_x = 0;\r
538 if (pico_pen_x > 248) pico_pen_x = 248;\r
539 }\r
540 if (pico_pen_y > 224) pico_pen_y = 224;\r
541 }\r
542 else\r
f0f0d2df 543 pdown_frames = 0;\r
85a4b5a4 544\r
545 //if (ret == 0)\r
546 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
547 }\r
406c96c5 548}\r
f2cf8472 549#endif\r
406c96c5 550\r
d34a42f9 551void plat_update_volume(int has_changed, int is_up)\r
4a32f01f 552{\r
553 static int prev_frame = 0, wait_frames = 0;\r
554 int vol = currentConfig.volume;\r
d34a42f9 555 int need_low_volume = 0;\r
556 gp2x_soc_t soc;\r
557\r
558 soc = soc_detect();\r
559 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)\r
560 need_low_volume = 1;\r
4a32f01f 561\r
562 if (has_changed)\r
563 {\r
d34a42f9 564 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
4a32f01f 565 wait_frames++;\r
566 else {\r
567 if (is_up) {\r
568 if (vol < 99) vol++;\r
569 } else {\r
570 if (vol > 0) vol--;\r
571 }\r
572 wait_frames = 0;\r
e5ab6faf 573 sndout_oss_setvol(vol, vol);\r
4a32f01f 574 currentConfig.volume = vol;\r
575 }\r
b24e0f6c 576 emu_status_msg("VOL: %02i", vol);\r
4a32f01f 577 prev_frame = Pico.m.frame_count;\r
578 }\r
579\r
54646a39 580 if (!need_low_volume)\r
d34a42f9 581 return;\r
582\r
583 /* set the right mixer func */\r
4a32f01f 584 if (vol >= 5)\r
585 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
586 else {\r
587 mix_32_to_16l_level = 5 - vol;\r
588 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
589 }\r
590}\r
591\r
7a93adeb 592static void updateSound(int len)\r
cc68a136 593{\r
b08ccf71 594 len <<= 1;\r
b24e0f6c 595 if (PicoOpt & POPT_EN_STEREO)\r
596 len <<= 1;\r
cc68a136 597\r
b08ccf71 598 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
599 return;\r
600\r
01bc6b19 601 /* avoid writing audio when lagging behind to prevent audio lag */\r
602 if (PicoSkipFrame != 2)\r
b08ccf71 603 sndout_oss_write(PsndOut, len);\r
cc68a136 604}\r
605\r
f2cf8472 606void pemu_sound_start(void)\r
7b3f44c6 607{\r
608 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
7b3f44c6 609\r
610 PsndOut = NULL;\r
611\r
612 // prepare sound stuff\r
7c34867a 613 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
7b3f44c6 614 {\r
7c34867a 615 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
616 int target_fps = Pico.m.pal ? 50 : 60;\r
b08ccf71 617 int frame_samples, snd_excess_add;\r
02da059d 618 int snd_rate_oss = PsndRate;\r
7c34867a 619 gp2x_soc_t soc;\r
620\r
b08ccf71 621 soc = soc_detect();\r
02da059d 622 if (soc == SOCID_POLLUX) {\r
623 /* POLLUX pain: DPLL1 / mclk_div / bitclk_div / 4 */\r
624 switch (PsndRate) {\r
625 case 44100: PsndRate = 44171; break; // 44170.673077\r
626 case 22050: PsndRate = 22086; break; // 22085.336538\r
627 case 11025: PsndRate = 11043; break; // 11042.668269\r
628 default: break;\r
629 }\r
630 }\r
b08ccf71 631\r
7c34867a 632 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)\r
633 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||\r
634 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {\r
7b3f44c6 635 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
636 }\r
b08ccf71 637\r
7b3f44c6 638 memset(sndBuffer, 0, sizeof(sndBuffer));\r
639 PsndOut = sndBuffer;\r
b08ccf71 640 PicoWriteSound = updateSound;\r
7b3f44c6 641 PsndRate_old = PsndRate;\r
642 PicoOpt_old = PicoOpt;\r
643 pal_old = Pico.m.pal;\r
b08ccf71 644 plat_update_volume(0, 0);\r
645\r
646 frame_samples = PsndLen;\r
647 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r
648 if (snd_excess_add != 0)\r
649 frame_samples++;\r
650 if (soc == SOCID_POLLUX)\r
651 frame_samples *= 2; /* force larger buffer */\r
652\r
653 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
654 PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r
655 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
02da059d 656 sndout_oss_start(snd_rate_oss, frame_samples, is_stereo);\r
7c34867a 657\r
658 /* Wiz's sound hardware needs more prebuffer */\r
7c34867a 659 if (soc == SOCID_POLLUX)\r
b08ccf71 660 updateSound(frame_samples);\r
7b3f44c6 661 }\r
662}\r
663\r
f2cf8472 664void pemu_sound_stop(void)\r
7b3f44c6 665{\r
02da059d 666 /* get back from Wiz pain */\r
667 switch (PsndRate) {\r
668 case 44171: PsndRate = 44100; break;\r
669 case 22086: PsndRate = 22050; break;\r
670 case 11043: PsndRate = 11025; break;\r
671 default: break;\r
672 }\r
7b3f44c6 673}\r
674\r
f2cf8472 675void pemu_sound_wait(void)\r
7b3f44c6 676{\r
677 // don't need to do anything, writes will block by themselves\r
678}\r
679\r
cc68a136 680\r
f2cf8472 681void pemu_forced_frame(int opts)\r
860c6322 682{\r
683 int po_old = PicoOpt;\r
a12e0116 684 int eo_old = currentConfig.EmuOpt;\r
685\r
f2cf8472 686 PicoOpt &= ~POPT_ALT_RENDERER;\r
687 PicoOpt |= opts|POPT_ACC_SPRITES;\r
688 currentConfig.EmuOpt |= EOPT_16BPP;\r
860c6322 689\r
a12e0116 690 PicoDrawSetColorFormat(1);\r
602133e1 691 PicoScanBegin = EmuScanBegin16;\r
cc41eb4f 692 PicoScanEnd = NULL;\r
a12e0116 693 Pico.m.dirtyPal = 1;\r
694 PicoFrameDrawOnly();\r
860c6322 695\r
48e8482f 696 PicoOpt = po_old;\r
a12e0116 697 currentConfig.EmuOpt = eo_old;\r
860c6322 698}\r
699\r
f2cf8472 700void plat_debug_cat(char *str)\r
fcf94fcc 701{\r
fcf94fcc 702}\r
703\r
b24e0f6c 704void pemu_video_mode_change(int is_32col, int is_240_lines)\r
cc68a136 705{\r
b24e0f6c 706 int scalex = 320;\r
707 osd_fps_x = OSD_FPS_X;\r
708 if (is_32col && (PicoOpt & POPT_DIS_32C_BORDER)) {\r
709 scalex = 256;\r
710 osd_fps_x = OSD_FPS_X - 64;\r
cc68a136 711 }\r
b24e0f6c 712 /* want vertical scaling and game is not in 240 line mode */\r
713 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !is_240_lines)\r
714 gp2x_video_RGB_setscaling(8, scalex, 224);\r
715 else\r
716 gp2x_video_RGB_setscaling(0, scalex, 240);\r
717\r
718 // clear whole screen in all buffers\r
719 if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))\r
720 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
721 else\r
722 gp2x_memset_all_buffers(0, 0, 320*240*2);\r
cc68a136 723}\r
724\r
da310283 725#if 0\r
726static void tga_dump(void)\r
727{\r
728#define BYTE unsigned char\r
729#define WORD unsigned short\r
730 struct\r
731 {\r
732 BYTE IDLength; /* 00h Size of Image ID field */\r
733 BYTE ColorMapType; /* 01h Color map type */\r
734 BYTE ImageType; /* 02h Image type code */\r
735 WORD CMapStart; /* 03h Color map origin */\r
736 WORD CMapLength; /* 05h Color map length */\r
737 BYTE CMapDepth; /* 07h Depth of color map entries */\r
738 WORD XOffset; /* 08h X origin of image */\r
739 WORD YOffset; /* 0Ah Y origin of image */\r
740 WORD Width; /* 0Ch Width of image */\r
741 WORD Height; /* 0Eh Height of image */\r
742 BYTE PixelDepth; /* 10h Image pixel size */\r
743 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
744 } __attribute__((packed)) TGAHEAD;\r
745 static unsigned short oldscr[320*240];\r
746 FILE *f; char name[128]; int i;\r
747\r
748 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
749 TGAHEAD.ImageType = 2;\r
750 TGAHEAD.Width = 320;\r
751 TGAHEAD.Height = 240;\r
752 TGAHEAD.PixelDepth = 16;\r
753 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
754\r
755#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
756\r
757 for (i = 0; i < 320*240; i++)\r
e2de9939 758 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
da310283 759 if (i < 320*240)\r
760 {\r
761 for (i = 0; i < 320*240; i++)\r
e2de9939 762 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
da310283 763 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
764 f = fopen(name, "wb");\r
765 if (!f) { printf("!f\n"); exit(1); }\r
766 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
767 fwrite(oldscr, 1, 320*240*2, f);\r
768 fclose(f);\r
769 }\r
770}\r
771#endif\r
772\r
b24e0f6c 773void pemu_loop_prep(void)\r
cc68a136 774{\r
cc41eb4f 775 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;\r
776 static int gp2x_old_gamma = 100;\r
7b436906 777 gp2x_soc_t soc;\r
778\r
779 soc = soc_detect();\r
cc68a136 780\r
0d9bf4fc 781 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
782 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
ee2a3bdf 783 set_ram_timings();\r
0d9bf4fc 784 else\r
785 unset_ram_timings();\r
786 }\r
787\r
788 if (gp2x_old_clock < 0)\r
789 gp2x_old_clock = default_cpu_clock;\r
cc68a136 790 if (gp2x_old_clock != currentConfig.CPUclock) {\r
791 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
0d9bf4fc 792 gp2x_set_cpuclk(currentConfig.CPUclock);\r
cc68a136 793 gp2x_old_clock = currentConfig.CPUclock;\r
794 printf(" done\n");\r
795 }\r
796\r
7b436906 797 if (gp2x_old_gamma != currentConfig.gamma || ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_A_SN_GAMMA)) {\r
798 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt & EOPT_A_SN_GAMMA));\r
cc68a136 799 gp2x_old_gamma = currentConfig.gamma;\r
82bc9cdd 800 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
cc68a136 801 }\r
802\r
7b436906 803 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_VSYNC) || Pico.m.pal != pal_old) {\r
804 if ((currentConfig.EmuOpt & EOPT_VSYNC) || soc == SOCID_POLLUX)\r
0d9bf4fc 805 set_lcd_custom_rate(Pico.m.pal);\r
7b436906 806 else if (EmuOpt_old & EOPT_VSYNC)\r
0d9bf4fc 807 unset_lcd_custom_rate();\r
aae35e84 808 }\r
809\r
0d9bf4fc 810 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
811 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
812\r
aae35e84 813 EmuOpt_old = currentConfig.EmuOpt;\r
cc41eb4f 814 pal_old = Pico.m.pal;\r
cc68a136 815\r
816 // make sure we are in correct mode\r
817 vidResetMode();\r
ea8c405f 818 scaling_update();\r
cc68a136 819\r
f2cf8472 820 pemu_sound_start();\r
b24e0f6c 821}\r
cc68a136 822\r
b24e0f6c 823void pemu_loop_end(void)\r
824{\r
730259b7 825 int po_old = PicoOpt;\r
826 int eo_old = currentConfig.EmuOpt;\r
827\r
02da059d 828 pemu_sound_stop();\r
829\r
730259b7 830 /* do one more frame for menu bg */\r
831 PicoOpt &= ~POPT_ALT_RENDERER;\r
832 PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r
833 currentConfig.EmuOpt |= EOPT_16BPP;\r
834\r
835 PicoScanBegin = EmuScanBegin16;\r
836 PicoScanEnd = NULL;\r
837 PicoDrawSetColorFormat(1);\r
838 Pico.m.dirtyPal = 1;\r
839 PicoFrame();\r
840\r
841 PicoOpt = po_old;\r
842 currentConfig.EmuOpt = eo_old;\r
cc68a136 843}\r
844\r
713c9224 845const char *plat_get_credits(void)\r
846{\r
847 return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
848 "Credits:\n"\r
849 "fDave: Cyclone 68000 core,\n"\r
850 " base code of PicoDrive\n"\r
851 "Reesy & FluBBa: DrZ80 core\n"\r
852 "MAME devs: YM2612 and SN76496 cores\n"\r
853 "rlyeh and others: minimal SDK\n"\r
42171343 854 "Squidge: mmuhack\n"\r
713c9224 855 "Dzz: ARM940 sample\n"\r
856 "GnoStiC / Puck2099: USB joy code\n"\r
857 "craigix: GP2X hardware\n"\r
858 "ketchupgun: skin design\n"\r
859 "\n"\r
860 "special thanks (for docs, ideas):\n"\r
861 " Charles MacDonald, Haze,\n"\r
862 " Stephane Dallongeville,\n"\r
863 " Lordus, Exophase, Rokas,\n"\r
864 " Nemesis, Tasco Deluxe";\r
865}\r
fast MegaDrive/MegaCD/32X emulator