Commit | Line | Data |
---|---|---|
2446536b | 1 | /* |
2 | * libretro core glue for PicoDrive | |
3 | * (C) notaz, 2013 | |
4 | * | |
5 | * This work is licensed under the terms of MAME license. | |
6 | * See COPYING file in the top-level directory. | |
7 | */ | |
8 | ||
9 | #define _GNU_SOURCE 1 // mremap | |
10 | #include <stdio.h> | |
11 | #include <stdarg.h> | |
12 | #include <string.h> | |
e8b61936 | 13 | #ifndef _WIN32 |
f18d0e08 | 14 | #ifndef NO_MMAP |
2446536b | 15 | #include <sys/mman.h> |
f18d0e08 | 16 | #endif |
e8b61936 | 17 | #else |
6f1133bc | 18 | #include <io.h> |
e8b61936 | 19 | #include <windows.h> |
6f1133bc | 20 | #include <sys/types.h> |
e8b61936 | 21 | #endif |
c25d78ee | 22 | #include <errno.h> |
2446536b | 23 | #ifdef __MACH__ |
24 | #include <libkern/OSCacheControl.h> | |
25 | #endif | |
26 | ||
0c732676 | 27 | #ifdef _3DS |
28 | #include "3ds/3ds_utils.h" | |
ad2ccfbc | 29 | #define MEMOP_MAP 4 |
30 | #define MEMOP_UNMAP 5 | |
31 | #define MEMOP_PROT 6 | |
32 | ||
0c732676 | 33 | int svcDuplicateHandle(unsigned int* out, unsigned int original); |
34 | int svcCloseHandle(unsigned int handle); | |
35 | int svcControlProcessMemory(unsigned int process, void* addr0, void* addr1, | |
36 | unsigned int size, unsigned int type, unsigned int perm); | |
ad2ccfbc | 37 | void* linearMemAlign(size_t size, size_t alignment); |
38 | void linearFree(void* mem); | |
0c732676 | 39 | |
40 | static int ctr_svchack_successful = 0; | |
41 | #endif | |
42 | ||
2446536b | 43 | #include <pico/pico_int.h> |
86b38dc4 | 44 | #include <pico/state.h> |
5345c2b9 T |
45 | #include "../common/input_pico.h" |
46 | #include "../common/version.h" | |
2446536b | 47 | #include "libretro.h" |
48 | ||
f5d4045b | 49 | static retro_log_printf_t log_cb; |
2446536b | 50 | static retro_video_refresh_t video_cb; |
51 | static retro_input_poll_t input_poll_cb; | |
52 | static retro_input_state_t input_state_cb; | |
53 | static retro_environment_t environ_cb; | |
54 | static retro_audio_sample_batch_t audio_batch_cb; | |
55 | ||
2446536b | 56 | #define VOUT_MAX_WIDTH 320 |
57 | #define VOUT_MAX_HEIGHT 240 | |
58 | static void *vout_buf; | |
51c08950 | 59 | static int vout_width, vout_height, vout_offset; |
2446536b | 60 | |
ed06ffd3 T |
61 | #ifdef _MSC_VER |
62 | static short sndBuffer[2*44100/50]; | |
63 | #else | |
2446536b | 64 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50]; |
ed06ffd3 | 65 | #endif |
2446536b | 66 | |
2446536b | 67 | static void snd_write(int len); |
68 | ||
69 | #ifdef _WIN32 | |
70 | #define SLASH '\\' | |
71 | #else | |
72 | #define SLASH '/' | |
73 | #endif | |
74 | ||
75 | /* functions called by the core */ | |
76 | ||
77 | void cache_flush_d_inval_i(void *start, void *end) | |
78 | { | |
79 | #ifdef __arm__ | |
80 | #if defined(__BLACKBERRY_QNX__) | |
eac0e638 | 81 | msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
2446536b | 82 | #elif defined(__MACH__) |
eac0e638 | 83 | size_t len = (char *)end - (char *)start; |
84 | sys_dcache_flush(start, len); | |
85 | sys_icache_invalidate(start, len); | |
0c732676 | 86 | #elif defined(_3DS) |
87 | ctr_flush_invalidate_cache(); | |
2446536b | 88 | #else |
0c732676 | 89 | __clear_cache(start, end); |
2446536b | 90 | #endif |
91 | #endif | |
92 | } | |
93 | ||
e8b61936 | 94 | #ifdef _WIN32 |
6f1133bc T |
95 | /* mmap() replacement for Windows |
96 | * | |
97 | * Author: Mike Frysinger <vapier@gentoo.org> | |
98 | * Placed into the public domain | |
99 | */ | |
100 | ||
101 | /* References: | |
102 | * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx | |
103 | * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx | |
104 | * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx | |
105 | * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx | |
106 | */ | |
107 | ||
108 | #define PROT_READ 0x1 | |
109 | #define PROT_WRITE 0x2 | |
110 | /* This flag is only available in WinXP+ */ | |
111 | #ifdef FILE_MAP_EXECUTE | |
112 | #define PROT_EXEC 0x4 | |
113 | #else | |
114 | #define PROT_EXEC 0x0 | |
115 | #define FILE_MAP_EXECUTE 0 | |
116 | #endif | |
117 | ||
118 | #define MAP_SHARED 0x01 | |
119 | #define MAP_PRIVATE 0x02 | |
120 | #define MAP_ANONYMOUS 0x20 | |
121 | #define MAP_ANON MAP_ANONYMOUS | |
122 | #define MAP_FAILED ((void *) -1) | |
123 | ||
124 | #ifdef __USE_FILE_OFFSET64 | |
125 | # define DWORD_HI(x) (x >> 32) | |
126 | # define DWORD_LO(x) ((x) & 0xffffffff) | |
127 | #else | |
128 | # define DWORD_HI(x) (0) | |
129 | # define DWORD_LO(x) (x) | |
130 | #endif | |
131 | ||
132 | static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | |
2446536b | 133 | { |
eac0e638 | 134 | uint32_t flProtect, dwDesiredAccess; |
135 | off_t end; | |
136 | HANDLE mmap_fd, h; | |
137 | void *ret; | |
138 | ||
139 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) | |
140 | return MAP_FAILED; | |
141 | if (fd == -1) { | |
142 | if (!(flags & MAP_ANON) || offset) | |
143 | return MAP_FAILED; | |
144 | } else if (flags & MAP_ANON) | |
145 | return MAP_FAILED; | |
146 | ||
147 | if (prot & PROT_WRITE) { | |
148 | if (prot & PROT_EXEC) | |
149 | flProtect = PAGE_EXECUTE_READWRITE; | |
150 | else | |
151 | flProtect = PAGE_READWRITE; | |
152 | } else if (prot & PROT_EXEC) { | |
153 | if (prot & PROT_READ) | |
154 | flProtect = PAGE_EXECUTE_READ; | |
155 | else if (prot & PROT_EXEC) | |
156 | flProtect = PAGE_EXECUTE; | |
157 | } else | |
158 | flProtect = PAGE_READONLY; | |
159 | ||
160 | end = length + offset; | |
161 | ||
162 | if (fd == -1) | |
163 | mmap_fd = INVALID_HANDLE_VALUE; | |
164 | else | |
165 | mmap_fd = (HANDLE)_get_osfhandle(fd); | |
166 | h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); | |
167 | if (h == NULL) | |
168 | return MAP_FAILED; | |
169 | ||
170 | if (prot & PROT_WRITE) | |
171 | dwDesiredAccess = FILE_MAP_WRITE; | |
172 | else | |
173 | dwDesiredAccess = FILE_MAP_READ; | |
174 | if (prot & PROT_EXEC) | |
175 | dwDesiredAccess |= FILE_MAP_EXECUTE; | |
176 | if (flags & MAP_PRIVATE) | |
177 | dwDesiredAccess |= FILE_MAP_COPY; | |
178 | ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); | |
179 | if (ret == NULL) { | |
180 | CloseHandle(h); | |
181 | ret = MAP_FAILED; | |
182 | } | |
183 | return ret; | |
e8b61936 | 184 | } |
2446536b | 185 | |
6f1133bc | 186 | static void munmap(void *addr, size_t length) |
e8b61936 | 187 | { |
eac0e638 | 188 | UnmapViewOfFile(addr); |
189 | /* ruh-ro, we leaked handle from CreateFileMapping() ... */ | |
e8b61936 | 190 | } |
f18d0e08 | 191 | #elif defined(NO_MMAP) |
5345c2b9 | 192 | #define PROT_EXEC 0x04 |
f18d0e08 | 193 | #define MAP_FAILED 0 |
194 | #define PROT_READ 0 | |
195 | #define PROT_WRITE 0 | |
196 | #define MAP_PRIVATE 0 | |
197 | #define MAP_ANONYMOUS 0 | |
198 | ||
199 | void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off) | |
200 | { | |
201 | return malloc(len); | |
202 | } | |
203 | ||
204 | void munmap(void *base_addr, size_t len) | |
205 | { | |
206 | free(base_addr); | |
207 | } | |
208 | ||
209 | int mprotect(void *addr, size_t len, int prot) | |
210 | { | |
eac0e638 | 211 | /* stub - not really needed at this point since this codepath has no dynarecs */ |
f18d0e08 | 212 | return 0; |
213 | } | |
214 | ||
e8b61936 | 215 | #endif |
8e5639bc | 216 | |
217 | #ifndef MAP_ANONYMOUS | |
218 | #define MAP_ANONYMOUS MAP_ANON | |
219 | #endif | |
220 | ||
0c732676 | 221 | #ifdef _3DS |
222 | typedef struct | |
223 | { | |
224 | unsigned int requested_map; | |
225 | void* buffer; | |
226 | }pico_mmap_t; | |
227 | ||
228 | pico_mmap_t pico_mmaps[] = { | |
229 | {0x02000000, 0}, | |
230 | {0x06000000, 0}, | |
231 | {NULL, 0} | |
232 | }; | |
233 | ||
234 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) | |
235 | { | |
236 | (void)is_fixed; | |
237 | ||
238 | if (ctr_svchack_successful) | |
239 | { | |
240 | pico_mmap_t* pico_mmap; | |
241 | ||
242 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
243 | { | |
244 | if ((pico_mmap->requested_map == addr)) | |
245 | { | |
246 | unsigned int ptr_aligned, tmp; | |
247 | unsigned int currentHandle; | |
248 | unsigned int perm = 0b011; | |
249 | ||
250 | if (need_exec) | |
251 | perm = 0b111; | |
252 | ||
253 | size = (size + 0xFFF) & ~0xFFF; | |
254 | pico_mmap->buffer = malloc(size + 0x1000); | |
255 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
256 | ||
257 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
258 | ||
259 | if(svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, size, MEMOP_MAP, perm) < 0) | |
260 | { | |
261 | if (log_cb) | |
262 | log_cb(RETRO_LOG_ERROR, "could not map memory @0x%08X\n", pico_mmap->requested_map); | |
263 | exit(1); | |
264 | } | |
265 | ||
266 | svcCloseHandle(currentHandle); | |
267 | return (void*)pico_mmap->requested_map; | |
268 | } | |
269 | } | |
270 | } | |
271 | ||
272 | return malloc(size); | |
273 | } | |
274 | ||
275 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
276 | { | |
277 | if (ctr_svchack_successful) | |
278 | { | |
279 | pico_mmap_t* pico_mmap; | |
280 | ||
281 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
282 | { | |
283 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
284 | { | |
285 | unsigned int ptr_aligned; | |
286 | unsigned int currentHandle; | |
287 | void* tmp; | |
288 | ||
289 | oldsize = (oldsize + 0xFFF) & ~0xFFF; | |
290 | newsize = (newsize + 0xFFF) & ~0xFFF; | |
291 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
292 | ||
293 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
294 | ||
295 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, oldsize, MEMOP_UNMAP, 0b011); | |
296 | ||
297 | tmp = realloc(pico_mmap->buffer, newsize + 0x1000); | |
298 | if(!tmp) | |
299 | return NULL; | |
300 | ||
301 | pico_mmap->buffer = tmp; | |
302 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
303 | ||
304 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, newsize, MEMOP_MAP, 0x3); | |
305 | ||
306 | svcCloseHandle(currentHandle); | |
307 | ||
308 | return ptr; | |
309 | } | |
310 | } | |
311 | } | |
312 | ||
313 | return realloc(ptr, newsize); | |
314 | ||
315 | } | |
316 | void plat_munmap(void *ptr, size_t size) | |
317 | { | |
318 | if (ctr_svchack_successful) | |
319 | { | |
320 | pico_mmap_t* pico_mmap; | |
321 | ||
322 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
323 | { | |
324 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
325 | { | |
326 | unsigned int ptr_aligned; | |
327 | unsigned int currentHandle; | |
328 | ||
329 | size = (size + 0xFFF) & ~0xFFF; | |
330 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
331 | ||
332 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
333 | ||
334 | svcControlProcessMemory(currentHandle, (void*)pico_mmap->requested_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0b011); | |
335 | ||
336 | svcCloseHandle(currentHandle); | |
337 | ||
338 | free(pico_mmap->buffer); | |
339 | pico_mmap->buffer = NULL; | |
340 | return; | |
341 | } | |
342 | } | |
343 | } | |
344 | ||
345 | free(ptr); | |
346 | } | |
347 | ||
348 | #else | |
e8b61936 | 349 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) |
350 | { | |
e8b61936 | 351 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; |
352 | void *req, *ret; | |
353 | ||
354 | req = (void *)addr; | |
355 | ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0); | |
356 | if (ret == MAP_FAILED) { | |
f5d4045b | 357 | if (log_cb) |
358 | log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno); | |
e8b61936 | 359 | return NULL; |
360 | } | |
361 | ||
362 | if (addr != 0 && ret != (void *)addr) { | |
f5d4045b | 363 | if (log_cb) |
364 | log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n", | |
365 | addr, ret); | |
e8b61936 | 366 | |
367 | if (is_fixed) { | |
368 | munmap(ret, size); | |
369 | return NULL; | |
370 | } | |
371 | } | |
2446536b | 372 | |
eac0e638 | 373 | return ret; |
2446536b | 374 | } |
375 | ||
376 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
377 | { | |
8c8b7284 | 378 | #ifdef __linux__ |
eac0e638 | 379 | void *ret = mremap(ptr, oldsize, newsize, 0); |
380 | if (ret == MAP_FAILED) | |
381 | return NULL; | |
2446536b | 382 | |
eac0e638 | 383 | return ret; |
8c8b7284 | 384 | #else |
eac0e638 | 385 | void *tmp, *ret; |
386 | size_t preserve_size; | |
387 | ||
388 | preserve_size = oldsize; | |
389 | if (preserve_size > newsize) | |
390 | preserve_size = newsize; | |
391 | tmp = malloc(preserve_size); | |
392 | if (tmp == NULL) | |
393 | return NULL; | |
394 | memcpy(tmp, ptr, preserve_size); | |
395 | ||
396 | munmap(ptr, oldsize); | |
397 | ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE, | |
398 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
399 | if (ret == MAP_FAILED) { | |
400 | free(tmp); | |
401 | return NULL; | |
402 | } | |
403 | memcpy(ret, tmp, preserve_size); | |
404 | free(tmp); | |
405 | return ret; | |
8c8b7284 | 406 | #endif |
2446536b | 407 | } |
408 | ||
409 | void plat_munmap(void *ptr, size_t size) | |
410 | { | |
eac0e638 | 411 | if (ptr != NULL) |
412 | munmap(ptr, size); | |
2446536b | 413 | } |
0c732676 | 414 | #endif |
2446536b | 415 | |
c25d78ee | 416 | int plat_mem_set_exec(void *ptr, size_t size) |
417 | { | |
e8b61936 | 418 | #ifdef _WIN32 |
419 | int ret = VirtualProtect(ptr,size,PAGE_EXECUTE_READWRITE,0); | |
f5d4045b | 420 | if (ret == 0 && log_cb) |
421 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, 0); | |
0c732676 | 422 | #elif defined(_3DS) |
423 | int ret = -1; | |
424 | if (ctr_svchack_successful) | |
425 | { | |
426 | unsigned int currentHandle; | |
427 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
428 | ret = svcControlProcessMemory(currentHandle, ptr, 0x0, | |
429 | size, MEMOP_PROT, 0b111); | |
430 | svcCloseHandle(currentHandle); | |
431 | ctr_flush_invalidate_cache(); | |
432 | ||
433 | } | |
434 | else | |
435 | { | |
436 | if (log_cb) | |
437 | log_cb(RETRO_LOG_ERROR, "plat_mem_set_exec called with no svcControlProcessMemory access\n"); | |
438 | exit(1); | |
439 | } | |
440 | ||
441 | ||
e8b61936 | 442 | #else |
443 | int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); | |
f5d4045b | 444 | if (ret != 0 && log_cb) |
445 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno); | |
e8b61936 | 446 | #endif |
eac0e638 | 447 | return ret; |
c25d78ee | 448 | } |
449 | ||
2446536b | 450 | void emu_video_mode_change(int start_line, int line_count, int is_32cols) |
451 | { | |
eac0e638 | 452 | memset(vout_buf, 0, 320 * 240 * 2); |
453 | vout_width = is_32cols ? 256 : 320; | |
454 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
51c08950 | 455 | |
eac0e638 | 456 | vout_height = line_count; |
457 | vout_offset = vout_width * start_line; | |
2446536b | 458 | } |
459 | ||
460 | void emu_32x_startup(void) | |
461 | { | |
2446536b | 462 | } |
463 | ||
2446536b | 464 | void lprintf(const char *fmt, ...) |
465 | { | |
c681e48d | 466 | char buffer[256]; |
467 | va_list ap; | |
468 | va_start(ap, fmt); | |
469 | vsprintf(buffer, fmt, ap); | |
f5d4045b | 470 | /* TODO - add 'level' param for warning/error messages? */ |
471 | if (log_cb) | |
0c732676 | 472 | log_cb(RETRO_LOG_INFO, "%s\n", fmt, ap); |
473 | va_end(ap); | |
2446536b | 474 | } |
475 | ||
2446536b | 476 | /* libretro */ |
477 | void retro_set_environment(retro_environment_t cb) | |
478 | { | |
eac0e638 | 479 | static const struct retro_variable vars[] = { |
480 | //{ "region", "Region; Auto|NTSC|PAL" }, | |
481 | { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" }, | |
482 | { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" }, | |
483 | { "picodrive_sprlim", "No sprite limit; disabled|enabled" }, | |
484 | { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" }, | |
485 | { "picodrive_region", "Region; Auto|Japan NTSC|Japan PAL|US|Europe" }, | |
0185b677 | 486 | #ifdef DRC_SH2 |
eac0e638 | 487 | { "picodrive_drc", "Dynamic recompilers; enabled|disabled" }, |
0185b677 | 488 | #endif |
eac0e638 | 489 | { NULL, NULL }, |
490 | }; | |
2446536b | 491 | |
eac0e638 | 492 | environ_cb = cb; |
2446536b | 493 | |
eac0e638 | 494 | cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars); |
2446536b | 495 | } |
496 | ||
497 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } | |
498 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } | |
499 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } | |
500 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } | |
501 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } | |
502 | ||
503 | unsigned retro_api_version(void) | |
504 | { | |
eac0e638 | 505 | return RETRO_API_VERSION; |
2446536b | 506 | } |
507 | ||
508 | void retro_set_controller_port_device(unsigned port, unsigned device) | |
509 | { | |
510 | } | |
511 | ||
512 | void retro_get_system_info(struct retro_system_info *info) | |
513 | { | |
eac0e638 | 514 | memset(info, 0, sizeof(*info)); |
515 | info->library_name = "PicoDrive"; | |
516 | info->library_version = VERSION; | |
517 | info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms"; | |
518 | info->need_fullpath = true; | |
2446536b | 519 | } |
520 | ||
521 | void retro_get_system_av_info(struct retro_system_av_info *info) | |
522 | { | |
eac0e638 | 523 | memset(info, 0, sizeof(*info)); |
524 | info->timing.fps = Pico.m.pal ? 50 : 60; | |
525 | info->timing.sample_rate = 44100; | |
526 | info->geometry.base_width = 320; | |
527 | info->geometry.base_height = vout_height; | |
528 | info->geometry.max_width = VOUT_MAX_WIDTH; | |
529 | info->geometry.max_height = VOUT_MAX_HEIGHT; | |
530 | info->geometry.aspect_ratio = 4.0f / 3.0f; | |
2446536b | 531 | } |
532 | ||
86b38dc4 | 533 | /* savestates */ |
534 | struct savestate_state { | |
eac0e638 | 535 | const char *load_buf; |
536 | char *save_buf; | |
537 | size_t size; | |
538 | size_t pos; | |
86b38dc4 | 539 | }; |
540 | ||
541 | size_t state_read(void *p, size_t size, size_t nmemb, void *file) | |
542 | { | |
eac0e638 | 543 | struct savestate_state *state = file; |
544 | size_t bsize = size * nmemb; | |
86b38dc4 | 545 | |
eac0e638 | 546 | if (state->pos + bsize > state->size) { |
f5d4045b | 547 | if (log_cb) |
548 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
549 | state->pos + bsize, state->size); | |
eac0e638 | 550 | bsize = state->size - state->pos; |
551 | if ((int)bsize <= 0) | |
552 | return 0; | |
553 | } | |
554 | ||
555 | memcpy(p, state->load_buf + state->pos, bsize); | |
556 | state->pos += bsize; | |
557 | return bsize; | |
86b38dc4 | 558 | } |
559 | ||
560 | size_t state_write(void *p, size_t size, size_t nmemb, void *file) | |
561 | { | |
eac0e638 | 562 | struct savestate_state *state = file; |
563 | size_t bsize = size * nmemb; | |
86b38dc4 | 564 | |
eac0e638 | 565 | if (state->pos + bsize > state->size) { |
f5d4045b | 566 | if (log_cb) |
567 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
568 | state->pos + bsize, state->size); | |
eac0e638 | 569 | bsize = state->size - state->pos; |
570 | if ((int)bsize <= 0) | |
571 | return 0; | |
572 | } | |
573 | ||
574 | memcpy(state->save_buf + state->pos, p, bsize); | |
575 | state->pos += bsize; | |
576 | return bsize; | |
86b38dc4 | 577 | } |
578 | ||
579 | size_t state_skip(void *p, size_t size, size_t nmemb, void *file) | |
580 | { | |
eac0e638 | 581 | struct savestate_state *state = file; |
582 | size_t bsize = size * nmemb; | |
86b38dc4 | 583 | |
eac0e638 | 584 | state->pos += bsize; |
585 | return bsize; | |
86b38dc4 | 586 | } |
587 | ||
588 | size_t state_eof(void *file) | |
589 | { | |
eac0e638 | 590 | struct savestate_state *state = file; |
86b38dc4 | 591 | |
eac0e638 | 592 | return state->pos >= state->size; |
86b38dc4 | 593 | } |
594 | ||
595 | int state_fseek(void *file, long offset, int whence) | |
596 | { | |
eac0e638 | 597 | struct savestate_state *state = file; |
598 | ||
599 | switch (whence) { | |
600 | case SEEK_SET: | |
601 | state->pos = offset; | |
602 | break; | |
603 | case SEEK_CUR: | |
604 | state->pos += offset; | |
605 | break; | |
606 | case SEEK_END: | |
607 | state->pos = state->size + offset; | |
608 | break; | |
609 | } | |
610 | return (int)state->pos; | |
86b38dc4 | 611 | } |
612 | ||
613 | /* savestate sizes vary wildly depending if cd/32x or | |
614 | * carthw is active, so run the whole thing to get size */ | |
eac0e638 | 615 | size_t retro_serialize_size(void) |
616 | { | |
617 | struct savestate_state state = { 0, }; | |
618 | int ret; | |
86b38dc4 | 619 | |
eac0e638 | 620 | ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek); |
621 | if (ret != 0) | |
622 | return 0; | |
86b38dc4 | 623 | |
eac0e638 | 624 | return state.pos; |
2446536b | 625 | } |
626 | ||
627 | bool retro_serialize(void *data, size_t size) | |
eac0e638 | 628 | { |
629 | struct savestate_state state = { 0, }; | |
630 | int ret; | |
86b38dc4 | 631 | |
eac0e638 | 632 | state.save_buf = data; |
633 | state.size = size; | |
634 | state.pos = 0; | |
86b38dc4 | 635 | |
eac0e638 | 636 | ret = PicoStateFP(&state, 1, NULL, state_write, |
637 | NULL, state_fseek); | |
638 | return ret == 0; | |
2446536b | 639 | } |
640 | ||
641 | bool retro_unserialize(const void *data, size_t size) | |
642 | { | |
eac0e638 | 643 | struct savestate_state state = { 0, }; |
644 | int ret; | |
86b38dc4 | 645 | |
eac0e638 | 646 | state.load_buf = data; |
647 | state.size = size; | |
648 | state.pos = 0; | |
86b38dc4 | 649 | |
eac0e638 | 650 | ret = PicoStateFP(&state, 0, state_read, NULL, |
651 | state_eof, state_fseek); | |
652 | return ret == 0; | |
2446536b | 653 | } |
654 | ||
655 | /* cheats - TODO */ | |
656 | void retro_cheat_reset(void) | |
657 | { | |
658 | } | |
659 | ||
660 | void retro_cheat_set(unsigned index, bool enabled, const char *code) | |
661 | { | |
662 | } | |
663 | ||
664 | /* multidisk support */ | |
665 | static bool disk_ejected; | |
666 | static unsigned int disk_current_index; | |
667 | static unsigned int disk_count; | |
668 | static struct disks_state { | |
eac0e638 | 669 | char *fname; |
2446536b | 670 | } disks[8]; |
671 | ||
672 | static bool disk_set_eject_state(bool ejected) | |
673 | { | |
eac0e638 | 674 | // TODO? |
675 | disk_ejected = ejected; | |
676 | return true; | |
2446536b | 677 | } |
678 | ||
679 | static bool disk_get_eject_state(void) | |
680 | { | |
eac0e638 | 681 | return disk_ejected; |
2446536b | 682 | } |
683 | ||
684 | static unsigned int disk_get_image_index(void) | |
685 | { | |
eac0e638 | 686 | return disk_current_index; |
2446536b | 687 | } |
688 | ||
689 | static bool disk_set_image_index(unsigned int index) | |
690 | { | |
eac0e638 | 691 | enum cd_img_type cd_type; |
692 | int ret; | |
2446536b | 693 | |
eac0e638 | 694 | if (index >= sizeof(disks) / sizeof(disks[0])) |
695 | return false; | |
2446536b | 696 | |
eac0e638 | 697 | if (disks[index].fname == NULL) { |
f5d4045b | 698 | if (log_cb) |
699 | log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index); | |
2446536b | 700 | |
eac0e638 | 701 | // RetroArch specifies "no disk" with index == count, |
702 | // so don't fail here.. | |
703 | disk_current_index = index; | |
704 | return true; | |
705 | } | |
2446536b | 706 | |
f5d4045b | 707 | if (log_cb) |
708 | log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index, | |
709 | disks[index].fname); | |
2446536b | 710 | |
eac0e638 | 711 | ret = -1; |
712 | cd_type = PicoCdCheck(disks[index].fname, NULL); | |
713 | if (cd_type != CIT_NOT_CD) | |
714 | ret = cdd_load(disks[index].fname, cd_type); | |
715 | if (ret != 0) { | |
f5d4045b | 716 | if (log_cb) |
717 | log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n"); | |
eac0e638 | 718 | return 0; |
719 | } | |
2446536b | 720 | |
eac0e638 | 721 | disk_current_index = index; |
722 | return true; | |
2446536b | 723 | } |
724 | ||
725 | static unsigned int disk_get_num_images(void) | |
726 | { | |
eac0e638 | 727 | return disk_count; |
2446536b | 728 | } |
729 | ||
730 | static bool disk_replace_image_index(unsigned index, | |
eac0e638 | 731 | const struct retro_game_info *info) |
2446536b | 732 | { |
eac0e638 | 733 | bool ret = true; |
2446536b | 734 | |
eac0e638 | 735 | if (index >= sizeof(disks) / sizeof(disks[0])) |
736 | return false; | |
2446536b | 737 | |
eac0e638 | 738 | if (disks[index].fname != NULL) |
739 | free(disks[index].fname); | |
740 | disks[index].fname = NULL; | |
2446536b | 741 | |
eac0e638 | 742 | if (info != NULL) { |
743 | disks[index].fname = strdup(info->path); | |
744 | if (index == disk_current_index) | |
745 | ret = disk_set_image_index(index); | |
746 | } | |
2446536b | 747 | |
eac0e638 | 748 | return ret; |
2446536b | 749 | } |
750 | ||
751 | static bool disk_add_image_index(void) | |
752 | { | |
eac0e638 | 753 | if (disk_count >= sizeof(disks) / sizeof(disks[0])) |
754 | return false; | |
2446536b | 755 | |
eac0e638 | 756 | disk_count++; |
757 | return true; | |
2446536b | 758 | } |
759 | ||
760 | static struct retro_disk_control_callback disk_control = { | |
eac0e638 | 761 | disk_set_eject_state, |
762 | disk_get_eject_state, | |
763 | disk_get_image_index, | |
764 | disk_set_image_index, | |
765 | disk_get_num_images, | |
766 | disk_replace_image_index, | |
767 | disk_add_image_index, | |
2446536b | 768 | }; |
769 | ||
770 | static void disk_tray_open(void) | |
771 | { | |
f5d4045b | 772 | if (log_cb) |
773 | log_cb(RETRO_LOG_INFO, "cd tray open\n"); | |
eac0e638 | 774 | disk_ejected = 1; |
2446536b | 775 | } |
776 | ||
777 | static void disk_tray_close(void) | |
778 | { | |
f5d4045b | 779 | if (log_cb) |
780 | log_cb(RETRO_LOG_INFO, "cd tray close\n"); | |
eac0e638 | 781 | disk_ejected = 0; |
2446536b | 782 | } |
783 | ||
784 | ||
785 | static const char * const biosfiles_us[] = { | |
eac0e638 | 786 | "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U" |
2446536b | 787 | }; |
788 | static const char * const biosfiles_eu[] = { | |
eac0e638 | 789 | "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E" |
2446536b | 790 | }; |
791 | static const char * const biosfiles_jp[] = { | |
eac0e638 | 792 | "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J" |
2446536b | 793 | }; |
794 | ||
795 | static void make_system_path(char *buf, size_t buf_size, | |
eac0e638 | 796 | const char *name, const char *ext) |
2446536b | 797 | { |
eac0e638 | 798 | const char *dir = NULL; |
799 | ||
800 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) { | |
801 | snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext); | |
802 | } | |
803 | else { | |
804 | snprintf(buf, buf_size, "%s%s", name, ext); | |
805 | } | |
2446536b | 806 | } |
807 | ||
808 | static const char *find_bios(int *region, const char *cd_fname) | |
809 | { | |
eac0e638 | 810 | const char * const *files; |
811 | static char path[256]; | |
812 | int i, count; | |
813 | FILE *f = NULL; | |
814 | ||
815 | if (*region == 4) { // US | |
816 | files = biosfiles_us; | |
817 | count = sizeof(biosfiles_us) / sizeof(char *); | |
818 | } else if (*region == 8) { // EU | |
819 | files = biosfiles_eu; | |
820 | count = sizeof(biosfiles_eu) / sizeof(char *); | |
821 | } else if (*region == 1 || *region == 2) { | |
822 | files = biosfiles_jp; | |
823 | count = sizeof(biosfiles_jp) / sizeof(char *); | |
824 | } else { | |
825 | return NULL; | |
826 | } | |
827 | ||
828 | for (i = 0; i < count; i++) | |
829 | { | |
830 | make_system_path(path, sizeof(path), files[i], ".bin"); | |
831 | f = fopen(path, "rb"); | |
832 | if (f != NULL) | |
833 | break; | |
834 | ||
835 | make_system_path(path, sizeof(path), files[i], ".zip"); | |
836 | f = fopen(path, "rb"); | |
837 | if (f != NULL) | |
838 | break; | |
839 | } | |
840 | ||
841 | if (f != NULL) { | |
f5d4045b | 842 | if (log_cb) |
843 | log_cb(RETRO_LOG_INFO, "using bios: %s\n", path); | |
eac0e638 | 844 | fclose(f); |
845 | return path; | |
846 | } | |
2446536b | 847 | |
eac0e638 | 848 | return NULL; |
2446536b | 849 | } |
850 | ||
851 | bool retro_load_game(const struct retro_game_info *info) | |
852 | { | |
eac0e638 | 853 | enum media_type_e media_type; |
854 | static char carthw_path[256]; | |
855 | size_t i; | |
2446536b | 856 | |
a1f2e1b1 | 857 | struct retro_input_descriptor desc[] = { |
858 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
859 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
860 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
861 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
862 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
863 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
864 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
865 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
866 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
867 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
868 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
869 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
870 | ||
871 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
872 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
873 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
874 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
875 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
876 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
877 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
878 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
879 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
880 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
881 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
882 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
883 | ||
884 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
885 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
886 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
887 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
888 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
889 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
890 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
891 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
892 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
893 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
894 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
895 | { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
896 | ||
897 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
898 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
899 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
900 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
901 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
902 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
903 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
904 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
905 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
906 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
907 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
908 | { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
909 | ||
910 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
911 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
912 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
913 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
914 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
915 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
916 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
917 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
918 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
919 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
920 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
921 | { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
922 | ||
923 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
924 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
925 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
926 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
927 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
928 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
929 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
930 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
931 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
932 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
933 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
934 | { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
935 | ||
936 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
937 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
938 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
939 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
940 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
941 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
942 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
943 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
944 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
945 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
946 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
947 | { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
948 | ||
949 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
950 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
951 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
952 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
953 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
954 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
955 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
956 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
957 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
958 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
959 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, | |
960 | { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
961 | ||
962 | { 0 }, | |
963 | }; | |
964 | ||
965 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); | |
966 | ||
eac0e638 | 967 | enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; |
968 | if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { | |
f5d4045b | 969 | if (log_cb) |
970 | log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n"); | |
eac0e638 | 971 | return false; |
972 | } | |
2446536b | 973 | |
eac0e638 | 974 | if (info == NULL || info->path == NULL) { |
f5d4045b | 975 | if (log_cb) |
976 | log_cb(RETRO_LOG_ERROR, "info->path required\n"); | |
eac0e638 | 977 | return false; |
978 | } | |
2446536b | 979 | |
eac0e638 | 980 | for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) { |
981 | if (disks[i].fname != NULL) { | |
982 | free(disks[i].fname); | |
983 | disks[i].fname = NULL; | |
984 | } | |
985 | } | |
2446536b | 986 | |
eac0e638 | 987 | disk_current_index = 0; |
988 | disk_count = 1; | |
989 | disks[0].fname = strdup(info->path); | |
2446536b | 990 | |
eac0e638 | 991 | make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg"); |
2446536b | 992 | |
eac0e638 | 993 | media_type = PicoLoadMedia(info->path, carthw_path, |
994 | find_bios, NULL); | |
2446536b | 995 | |
eac0e638 | 996 | switch (media_type) { |
997 | case PM_BAD_DETECT: | |
f5d4045b | 998 | if (log_cb) |
999 | log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n"); | |
eac0e638 | 1000 | return false; |
1001 | case PM_BAD_CD: | |
f5d4045b | 1002 | if (log_cb) |
1003 | log_cb(RETRO_LOG_ERROR, "Invalid CD image\n"); | |
eac0e638 | 1004 | return false; |
1005 | case PM_BAD_CD_NO_BIOS: | |
f5d4045b | 1006 | if (log_cb) |
1007 | log_cb(RETRO_LOG_ERROR, "Missing BIOS\n"); | |
eac0e638 | 1008 | return false; |
1009 | case PM_ERROR: | |
f5d4045b | 1010 | if (log_cb) |
1011 | log_cb(RETRO_LOG_ERROR, "Load error\n"); | |
eac0e638 | 1012 | return false; |
1013 | default: | |
1014 | break; | |
1015 | } | |
2446536b | 1016 | |
eac0e638 | 1017 | PicoLoopPrepare(); |
2446536b | 1018 | |
eac0e638 | 1019 | PicoWriteSound = snd_write; |
1020 | memset(sndBuffer, 0, sizeof(sndBuffer)); | |
1021 | PsndOut = sndBuffer; | |
1022 | PsndRerate(0); | |
2446536b | 1023 | |
eac0e638 | 1024 | return true; |
2446536b | 1025 | } |
1026 | ||
1027 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) | |
1028 | { | |
eac0e638 | 1029 | return false; |
2446536b | 1030 | } |
1031 | ||
eac0e638 | 1032 | void retro_unload_game(void) |
2446536b | 1033 | { |
1034 | } | |
1035 | ||
1036 | unsigned retro_get_region(void) | |
1037 | { | |
eac0e638 | 1038 | return Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; |
2446536b | 1039 | } |
1040 | ||
1041 | void *retro_get_memory_data(unsigned id) | |
1042 | { | |
eac0e638 | 1043 | if (id != RETRO_MEMORY_SAVE_RAM) |
1044 | return NULL; | |
2446536b | 1045 | |
eac0e638 | 1046 | if (PicoAHW & PAHW_MCD) |
1047 | return Pico_mcd->bram; | |
1048 | else | |
1049 | return SRam.data; | |
2446536b | 1050 | } |
1051 | ||
1052 | size_t retro_get_memory_size(unsigned id) | |
1053 | { | |
eac0e638 | 1054 | unsigned int i; |
1055 | int sum; | |
0fd6751d | 1056 | |
eac0e638 | 1057 | if (id != RETRO_MEMORY_SAVE_RAM) |
1058 | return 0; | |
2446536b | 1059 | |
eac0e638 | 1060 | if (PicoAHW & PAHW_MCD) |
1061 | // bram | |
1062 | return 0x2000; | |
0fd6751d | 1063 | |
eac0e638 | 1064 | if (Pico.m.frame_count == 0) |
1065 | return SRam.size; | |
0fd6751d | 1066 | |
eac0e638 | 1067 | // if game doesn't write to sram, don't report it to |
1068 | // libretro so that RA doesn't write out zeroed .srm | |
1069 | for (i = 0, sum = 0; i < SRam.size; i++) | |
1070 | sum |= SRam.data[i]; | |
0fd6751d | 1071 | |
eac0e638 | 1072 | return (sum != 0) ? SRam.size : 0; |
2446536b | 1073 | } |
1074 | ||
1075 | void retro_reset(void) | |
1076 | { | |
eac0e638 | 1077 | PicoReset(); |
2446536b | 1078 | } |
1079 | ||
1080 | static const unsigned short retro_pico_map[] = { | |
eac0e638 | 1081 | 1 << GBTN_B, |
1082 | 1 << GBTN_A, | |
1083 | 1 << GBTN_MODE, | |
1084 | 1 << GBTN_START, | |
1085 | 1 << GBTN_UP, | |
1086 | 1 << GBTN_DOWN, | |
1087 | 1 << GBTN_LEFT, | |
1088 | 1 << GBTN_RIGHT, | |
1089 | 1 << GBTN_C, | |
1090 | 1 << GBTN_Y, | |
1091 | 1 << GBTN_X, | |
1092 | 1 << GBTN_Z, | |
2446536b | 1093 | }; |
1094 | #define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0])) | |
1095 | ||
1096 | static void snd_write(int len) | |
1097 | { | |
eac0e638 | 1098 | audio_batch_cb(PsndOut, len / 4); |
2446536b | 1099 | } |
1100 | ||
531a8f38 | 1101 | static enum input_device input_name_to_val(const char *name) |
1102 | { | |
eac0e638 | 1103 | if (strcmp(name, "3 button pad") == 0) |
1104 | return PICO_INPUT_PAD_3BTN; | |
1105 | if (strcmp(name, "6 button pad") == 0) | |
1106 | return PICO_INPUT_PAD_6BTN; | |
1107 | if (strcmp(name, "None") == 0) | |
1108 | return PICO_INPUT_NOTHING; | |
531a8f38 | 1109 | |
f5d4045b | 1110 | if (log_cb) |
1111 | log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name); | |
eac0e638 | 1112 | return PICO_INPUT_PAD_3BTN; |
531a8f38 | 1113 | } |
1114 | ||
1115 | static void update_variables(void) | |
1116 | { | |
eac0e638 | 1117 | struct retro_variable var; |
1118 | ||
1119 | var.value = NULL; | |
1120 | var.key = "picodrive_input1"; | |
1121 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1122 | PicoSetInputDevice(0, input_name_to_val(var.value)); | |
1123 | ||
1124 | var.value = NULL; | |
1125 | var.key = "picodrive_input2"; | |
1126 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1127 | PicoSetInputDevice(1, input_name_to_val(var.value)); | |
1128 | ||
1129 | var.value = NULL; | |
1130 | var.key = "picodrive_sprlim"; | |
1131 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1132 | if (strcmp(var.value, "enabled") == 0) | |
1133 | PicoOpt |= POPT_DIS_SPRITE_LIM; | |
1134 | else | |
1135 | PicoOpt &= ~POPT_DIS_SPRITE_LIM; | |
1136 | } | |
1137 | ||
1138 | var.value = NULL; | |
1139 | var.key = "picodrive_ramcart"; | |
1140 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1141 | if (strcmp(var.value, "enabled") == 0) | |
1142 | PicoOpt |= POPT_EN_MCD_RAMCART; | |
1143 | else | |
1144 | PicoOpt &= ~POPT_EN_MCD_RAMCART; | |
1145 | } | |
1146 | ||
1147 | var.value = NULL; | |
1148 | var.key = "picodrive_region"; | |
1149 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1150 | if (strcmp(var.value, "Auto") == 0) | |
1151 | PicoRegionOverride = 0; | |
1152 | else if (strcmp(var.value, "Japan NTSC") == 0) | |
1153 | PicoRegionOverride = 1; | |
1154 | else if (strcmp(var.value, "Japan PAL") == 0) | |
1155 | PicoRegionOverride = 2; | |
1156 | else if (strcmp(var.value, "US") == 0) | |
1157 | PicoRegionOverride = 4; | |
1158 | else if (strcmp(var.value, "Europe") == 0) | |
1159 | PicoRegionOverride = 8; | |
1160 | } | |
b38bccea | 1161 | |
0185b677 | 1162 | #ifdef DRC_SH2 |
eac0e638 | 1163 | var.value = NULL; |
1164 | var.key = "picodrive_drc"; | |
1165 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1166 | if (strcmp(var.value, "enabled") == 0) | |
1167 | PicoOpt |= POPT_EN_DRC; | |
1168 | else | |
1169 | PicoOpt &= ~POPT_EN_DRC; | |
1170 | } | |
0185b677 | 1171 | #endif |
0c732676 | 1172 | #ifdef _3DS |
1173 | if(!ctr_svchack_successful) | |
1174 | PicoOpt &= ~POPT_EN_DRC; | |
1175 | #endif | |
531a8f38 | 1176 | } |
1177 | ||
eac0e638 | 1178 | void retro_run(void) |
2446536b | 1179 | { |
eac0e638 | 1180 | bool updated = false; |
1181 | int pad, i; | |
2446536b | 1182 | |
eac0e638 | 1183 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) |
1184 | update_variables(); | |
2446536b | 1185 | |
0c732676 | 1186 | input_poll_cb(); |
2446536b | 1187 | |
eac0e638 | 1188 | PicoPad[0] = PicoPad[1] = 0; |
1189 | for (pad = 0; pad < 2; pad++) | |
1190 | for (i = 0; i < RETRO_PICO_MAP_LEN; i++) | |
1191 | if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i)) | |
1192 | PicoPad[pad] |= retro_pico_map[i]; | |
2446536b | 1193 | |
eac0e638 | 1194 | PicoFrame(); |
2446536b | 1195 | |
eac0e638 | 1196 | video_cb((short *)vout_buf + vout_offset, |
1197 | vout_width, vout_height, vout_width * 2); | |
2446536b | 1198 | } |
1199 | ||
2f832b7f | 1200 | static void check_system_specs(void) |
1201 | { | |
1202 | /* TODO - set different performance level for 32X - 6 for ARM dynarec, higher for interpreter core */ | |
1203 | unsigned level = 5; | |
1204 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
1205 | } | |
1206 | ||
2446536b | 1207 | void retro_init(void) |
1208 | { | |
f5d4045b | 1209 | struct retro_log_callback log; |
eac0e638 | 1210 | int level; |
2446536b | 1211 | |
eac0e638 | 1212 | level = 0; |
1213 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
2446536b | 1214 | |
c681e48d | 1215 | if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) |
f5d4045b | 1216 | log_cb = log.log; |
c681e48d | 1217 | else |
1218 | log_cb = NULL; | |
f5d4045b | 1219 | |
eac0e638 | 1220 | environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); |
2446536b | 1221 | |
0c732676 | 1222 | #ifdef _3DS |
1223 | ctr_svchack_successful = ctr_svchack_init(); | |
1224 | #endif | |
1225 | ||
eac0e638 | 1226 | PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
1227 | | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX | |
1228 | | POPT_EN_32X|POPT_EN_PWM | |
1229 | | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER; | |
720bfc5d | 1230 | #ifdef __arm__ |
0c732676 | 1231 | #ifdef _3DS |
1232 | if (ctr_svchack_successful) | |
1233 | #endif | |
1234 | PicoOpt |= POPT_EN_DRC; | |
720bfc5d | 1235 | #endif |
eac0e638 | 1236 | PsndRate = 44100; |
1237 | PicoAutoRgnOrder = 0x184; // US, EU, JP | |
2446536b | 1238 | |
eac0e638 | 1239 | vout_width = 320; |
0c732676 | 1240 | vout_height = 240; |
ad2ccfbc | 1241 | #ifdef _3DS |
1242 | vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80); | |
1243 | #else | |
0c732676 | 1244 | vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); |
ad2ccfbc | 1245 | #endif |
2446536b | 1246 | |
0c732676 | 1247 | PicoInit(); |
1248 | PicoDrawSetOutFormat(PDF_RGB555, 0); | |
1249 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
2446536b | 1250 | |
eac0e638 | 1251 | //PicoMessage = plat_status_msg_busy_next; |
1252 | PicoMCDopenTray = disk_tray_open; | |
1253 | PicoMCDcloseTray = disk_tray_close; | |
531a8f38 | 1254 | |
0c732676 | 1255 | update_variables(); |
2446536b | 1256 | } |
1257 | ||
1258 | void retro_deinit(void) | |
1259 | { | |
ad2ccfbc | 1260 | #ifdef _3DS |
1261 | linearFree(vout_buf); | |
1262 | #else | |
1263 | free(vout_buf); | |
1264 | #endif | |
1265 | vout_buf = NULL; | |
eac0e638 | 1266 | PicoExit(); |
2446536b | 1267 | } |