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 | |
e1360c66 D |
58 | |
59 | static const float VOUT_PAR = 0.0; | |
60 | static const float VOUT_4_3 = (224.0f * (4.0f / 3.0f)); | |
61 | static const float VOUT_CRT = (224.0f * 1.29911f); | |
62 | ||
2446536b | 63 | static void *vout_buf; |
51c08950 | 64 | static int vout_width, vout_height, vout_offset; |
e1360c66 | 65 | static float user_vout_width = 0.0; |
2446536b | 66 | |
ed06ffd3 T |
67 | #ifdef _MSC_VER |
68 | static short sndBuffer[2*44100/50]; | |
69 | #else | |
2446536b | 70 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50]; |
ed06ffd3 | 71 | #endif |
2446536b | 72 | |
2446536b | 73 | static void snd_write(int len); |
74 | ||
75 | #ifdef _WIN32 | |
76 | #define SLASH '\\' | |
77 | #else | |
78 | #define SLASH '/' | |
79 | #endif | |
80 | ||
81 | /* functions called by the core */ | |
82 | ||
83 | void cache_flush_d_inval_i(void *start, void *end) | |
84 | { | |
85 | #ifdef __arm__ | |
86 | #if defined(__BLACKBERRY_QNX__) | |
eac0e638 | 87 | msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
2446536b | 88 | #elif defined(__MACH__) |
eac0e638 | 89 | size_t len = (char *)end - (char *)start; |
90 | sys_dcache_flush(start, len); | |
91 | sys_icache_invalidate(start, len); | |
0c732676 | 92 | #elif defined(_3DS) |
93 | ctr_flush_invalidate_cache(); | |
2446536b | 94 | #else |
0c732676 | 95 | __clear_cache(start, end); |
2446536b | 96 | #endif |
97 | #endif | |
98 | } | |
99 | ||
e8b61936 | 100 | #ifdef _WIN32 |
6f1133bc T |
101 | /* mmap() replacement for Windows |
102 | * | |
103 | * Author: Mike Frysinger <vapier@gentoo.org> | |
104 | * Placed into the public domain | |
105 | */ | |
106 | ||
107 | /* References: | |
108 | * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx | |
109 | * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx | |
110 | * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx | |
111 | * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx | |
112 | */ | |
113 | ||
114 | #define PROT_READ 0x1 | |
115 | #define PROT_WRITE 0x2 | |
116 | /* This flag is only available in WinXP+ */ | |
117 | #ifdef FILE_MAP_EXECUTE | |
118 | #define PROT_EXEC 0x4 | |
119 | #else | |
120 | #define PROT_EXEC 0x0 | |
121 | #define FILE_MAP_EXECUTE 0 | |
122 | #endif | |
123 | ||
124 | #define MAP_SHARED 0x01 | |
125 | #define MAP_PRIVATE 0x02 | |
126 | #define MAP_ANONYMOUS 0x20 | |
127 | #define MAP_ANON MAP_ANONYMOUS | |
128 | #define MAP_FAILED ((void *) -1) | |
129 | ||
130 | #ifdef __USE_FILE_OFFSET64 | |
131 | # define DWORD_HI(x) (x >> 32) | |
132 | # define DWORD_LO(x) ((x) & 0xffffffff) | |
133 | #else | |
134 | # define DWORD_HI(x) (0) | |
135 | # define DWORD_LO(x) (x) | |
136 | #endif | |
137 | ||
138 | static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | |
2446536b | 139 | { |
eac0e638 | 140 | uint32_t flProtect, dwDesiredAccess; |
141 | off_t end; | |
142 | HANDLE mmap_fd, h; | |
143 | void *ret; | |
144 | ||
145 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) | |
146 | return MAP_FAILED; | |
147 | if (fd == -1) { | |
148 | if (!(flags & MAP_ANON) || offset) | |
149 | return MAP_FAILED; | |
150 | } else if (flags & MAP_ANON) | |
151 | return MAP_FAILED; | |
152 | ||
153 | if (prot & PROT_WRITE) { | |
154 | if (prot & PROT_EXEC) | |
155 | flProtect = PAGE_EXECUTE_READWRITE; | |
156 | else | |
157 | flProtect = PAGE_READWRITE; | |
158 | } else if (prot & PROT_EXEC) { | |
159 | if (prot & PROT_READ) | |
160 | flProtect = PAGE_EXECUTE_READ; | |
161 | else if (prot & PROT_EXEC) | |
162 | flProtect = PAGE_EXECUTE; | |
163 | } else | |
164 | flProtect = PAGE_READONLY; | |
165 | ||
166 | end = length + offset; | |
167 | ||
168 | if (fd == -1) | |
169 | mmap_fd = INVALID_HANDLE_VALUE; | |
170 | else | |
171 | mmap_fd = (HANDLE)_get_osfhandle(fd); | |
172 | h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); | |
173 | if (h == NULL) | |
174 | return MAP_FAILED; | |
175 | ||
176 | if (prot & PROT_WRITE) | |
177 | dwDesiredAccess = FILE_MAP_WRITE; | |
178 | else | |
179 | dwDesiredAccess = FILE_MAP_READ; | |
180 | if (prot & PROT_EXEC) | |
181 | dwDesiredAccess |= FILE_MAP_EXECUTE; | |
182 | if (flags & MAP_PRIVATE) | |
183 | dwDesiredAccess |= FILE_MAP_COPY; | |
184 | ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); | |
185 | if (ret == NULL) { | |
186 | CloseHandle(h); | |
187 | ret = MAP_FAILED; | |
188 | } | |
189 | return ret; | |
e8b61936 | 190 | } |
2446536b | 191 | |
6f1133bc | 192 | static void munmap(void *addr, size_t length) |
e8b61936 | 193 | { |
eac0e638 | 194 | UnmapViewOfFile(addr); |
195 | /* ruh-ro, we leaked handle from CreateFileMapping() ... */ | |
e8b61936 | 196 | } |
f18d0e08 | 197 | #elif defined(NO_MMAP) |
5345c2b9 | 198 | #define PROT_EXEC 0x04 |
f18d0e08 | 199 | #define MAP_FAILED 0 |
200 | #define PROT_READ 0 | |
201 | #define PROT_WRITE 0 | |
202 | #define MAP_PRIVATE 0 | |
203 | #define MAP_ANONYMOUS 0 | |
204 | ||
205 | void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off) | |
206 | { | |
207 | return malloc(len); | |
208 | } | |
209 | ||
210 | void munmap(void *base_addr, size_t len) | |
211 | { | |
212 | free(base_addr); | |
213 | } | |
214 | ||
215 | int mprotect(void *addr, size_t len, int prot) | |
216 | { | |
eac0e638 | 217 | /* stub - not really needed at this point since this codepath has no dynarecs */ |
f18d0e08 | 218 | return 0; |
219 | } | |
220 | ||
e8b61936 | 221 | #endif |
8e5639bc | 222 | |
223 | #ifndef MAP_ANONYMOUS | |
224 | #define MAP_ANONYMOUS MAP_ANON | |
225 | #endif | |
226 | ||
0c732676 | 227 | #ifdef _3DS |
228 | typedef struct | |
229 | { | |
230 | unsigned int requested_map; | |
231 | void* buffer; | |
232 | }pico_mmap_t; | |
233 | ||
234 | pico_mmap_t pico_mmaps[] = { | |
235 | {0x02000000, 0}, | |
236 | {0x06000000, 0}, | |
237 | {NULL, 0} | |
238 | }; | |
239 | ||
240 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) | |
241 | { | |
242 | (void)is_fixed; | |
243 | ||
244 | if (ctr_svchack_successful) | |
245 | { | |
246 | pico_mmap_t* pico_mmap; | |
247 | ||
248 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
249 | { | |
250 | if ((pico_mmap->requested_map == addr)) | |
251 | { | |
252 | unsigned int ptr_aligned, tmp; | |
253 | unsigned int currentHandle; | |
254 | unsigned int perm = 0b011; | |
255 | ||
256 | if (need_exec) | |
257 | perm = 0b111; | |
258 | ||
259 | size = (size + 0xFFF) & ~0xFFF; | |
260 | pico_mmap->buffer = malloc(size + 0x1000); | |
261 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
262 | ||
263 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
264 | ||
265 | if(svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, size, MEMOP_MAP, perm) < 0) | |
266 | { | |
267 | if (log_cb) | |
268 | log_cb(RETRO_LOG_ERROR, "could not map memory @0x%08X\n", pico_mmap->requested_map); | |
269 | exit(1); | |
270 | } | |
271 | ||
272 | svcCloseHandle(currentHandle); | |
273 | return (void*)pico_mmap->requested_map; | |
274 | } | |
275 | } | |
276 | } | |
277 | ||
278 | return malloc(size); | |
279 | } | |
280 | ||
281 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
282 | { | |
283 | if (ctr_svchack_successful) | |
284 | { | |
285 | pico_mmap_t* pico_mmap; | |
286 | ||
287 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
288 | { | |
289 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
290 | { | |
291 | unsigned int ptr_aligned; | |
292 | unsigned int currentHandle; | |
293 | void* tmp; | |
294 | ||
295 | oldsize = (oldsize + 0xFFF) & ~0xFFF; | |
296 | newsize = (newsize + 0xFFF) & ~0xFFF; | |
297 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
298 | ||
299 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
300 | ||
301 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, oldsize, MEMOP_UNMAP, 0b011); | |
302 | ||
303 | tmp = realloc(pico_mmap->buffer, newsize + 0x1000); | |
304 | if(!tmp) | |
305 | return NULL; | |
306 | ||
307 | pico_mmap->buffer = tmp; | |
308 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
309 | ||
310 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, newsize, MEMOP_MAP, 0x3); | |
311 | ||
312 | svcCloseHandle(currentHandle); | |
313 | ||
314 | return ptr; | |
315 | } | |
316 | } | |
317 | } | |
318 | ||
319 | return realloc(ptr, newsize); | |
320 | ||
321 | } | |
322 | void plat_munmap(void *ptr, size_t size) | |
323 | { | |
324 | if (ctr_svchack_successful) | |
325 | { | |
326 | pico_mmap_t* pico_mmap; | |
327 | ||
328 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
329 | { | |
330 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
331 | { | |
332 | unsigned int ptr_aligned; | |
333 | unsigned int currentHandle; | |
334 | ||
335 | size = (size + 0xFFF) & ~0xFFF; | |
336 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
337 | ||
338 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
339 | ||
340 | svcControlProcessMemory(currentHandle, (void*)pico_mmap->requested_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0b011); | |
341 | ||
342 | svcCloseHandle(currentHandle); | |
343 | ||
344 | free(pico_mmap->buffer); | |
345 | pico_mmap->buffer = NULL; | |
346 | return; | |
347 | } | |
348 | } | |
349 | } | |
350 | ||
351 | free(ptr); | |
352 | } | |
353 | ||
354 | #else | |
e8b61936 | 355 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) |
356 | { | |
e8b61936 | 357 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; |
358 | void *req, *ret; | |
359 | ||
360 | req = (void *)addr; | |
361 | ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0); | |
362 | if (ret == MAP_FAILED) { | |
f5d4045b | 363 | if (log_cb) |
364 | log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno); | |
e8b61936 | 365 | return NULL; |
366 | } | |
367 | ||
368 | if (addr != 0 && ret != (void *)addr) { | |
f5d4045b | 369 | if (log_cb) |
370 | log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n", | |
371 | addr, ret); | |
e8b61936 | 372 | |
373 | if (is_fixed) { | |
374 | munmap(ret, size); | |
375 | return NULL; | |
376 | } | |
377 | } | |
2446536b | 378 | |
eac0e638 | 379 | return ret; |
2446536b | 380 | } |
381 | ||
382 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
383 | { | |
8c8b7284 | 384 | #ifdef __linux__ |
eac0e638 | 385 | void *ret = mremap(ptr, oldsize, newsize, 0); |
386 | if (ret == MAP_FAILED) | |
387 | return NULL; | |
2446536b | 388 | |
eac0e638 | 389 | return ret; |
8c8b7284 | 390 | #else |
eac0e638 | 391 | void *tmp, *ret; |
392 | size_t preserve_size; | |
393 | ||
394 | preserve_size = oldsize; | |
395 | if (preserve_size > newsize) | |
396 | preserve_size = newsize; | |
397 | tmp = malloc(preserve_size); | |
398 | if (tmp == NULL) | |
399 | return NULL; | |
400 | memcpy(tmp, ptr, preserve_size); | |
401 | ||
402 | munmap(ptr, oldsize); | |
403 | ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE, | |
404 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
405 | if (ret == MAP_FAILED) { | |
406 | free(tmp); | |
407 | return NULL; | |
408 | } | |
409 | memcpy(ret, tmp, preserve_size); | |
410 | free(tmp); | |
411 | return ret; | |
8c8b7284 | 412 | #endif |
2446536b | 413 | } |
414 | ||
415 | void plat_munmap(void *ptr, size_t size) | |
416 | { | |
eac0e638 | 417 | if (ptr != NULL) |
418 | munmap(ptr, size); | |
2446536b | 419 | } |
0c732676 | 420 | #endif |
2446536b | 421 | |
c25d78ee | 422 | int plat_mem_set_exec(void *ptr, size_t size) |
423 | { | |
e8b61936 | 424 | #ifdef _WIN32 |
425 | int ret = VirtualProtect(ptr,size,PAGE_EXECUTE_READWRITE,0); | |
f5d4045b | 426 | if (ret == 0 && log_cb) |
427 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, 0); | |
0c732676 | 428 | #elif defined(_3DS) |
429 | int ret = -1; | |
430 | if (ctr_svchack_successful) | |
431 | { | |
432 | unsigned int currentHandle; | |
433 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
434 | ret = svcControlProcessMemory(currentHandle, ptr, 0x0, | |
435 | size, MEMOP_PROT, 0b111); | |
436 | svcCloseHandle(currentHandle); | |
437 | ctr_flush_invalidate_cache(); | |
438 | ||
439 | } | |
440 | else | |
441 | { | |
442 | if (log_cb) | |
443 | log_cb(RETRO_LOG_ERROR, "plat_mem_set_exec called with no svcControlProcessMemory access\n"); | |
444 | exit(1); | |
445 | } | |
446 | ||
447 | ||
e8b61936 | 448 | #else |
449 | int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); | |
f5d4045b | 450 | if (ret != 0 && log_cb) |
451 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno); | |
e8b61936 | 452 | #endif |
eac0e638 | 453 | return ret; |
c25d78ee | 454 | } |
455 | ||
2446536b | 456 | void emu_video_mode_change(int start_line, int line_count, int is_32cols) |
457 | { | |
eac0e638 | 458 | memset(vout_buf, 0, 320 * 240 * 2); |
459 | vout_width = is_32cols ? 256 : 320; | |
460 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
51c08950 | 461 | |
eac0e638 | 462 | vout_height = line_count; |
463 | vout_offset = vout_width * start_line; | |
e1360c66 D |
464 | |
465 | // Update the geometry | |
466 | struct retro_system_av_info av_info; | |
467 | retro_get_system_av_info(&av_info); | |
468 | environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); | |
2446536b | 469 | } |
470 | ||
471 | void emu_32x_startup(void) | |
472 | { | |
2446536b | 473 | } |
474 | ||
2446536b | 475 | void lprintf(const char *fmt, ...) |
476 | { | |
c681e48d | 477 | char buffer[256]; |
478 | va_list ap; | |
479 | va_start(ap, fmt); | |
480 | vsprintf(buffer, fmt, ap); | |
f5d4045b | 481 | /* TODO - add 'level' param for warning/error messages? */ |
482 | if (log_cb) | |
bd7b09f4 | 483 | log_cb(RETRO_LOG_INFO, "%s", buffer); |
0c732676 | 484 | va_end(ap); |
2446536b | 485 | } |
486 | ||
2446536b | 487 | /* libretro */ |
488 | void retro_set_environment(retro_environment_t cb) | |
489 | { | |
eac0e638 | 490 | static const struct retro_variable vars[] = { |
48582bcf D |
491 | { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" }, |
492 | { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" }, | |
493 | { "picodrive_sprlim", "No sprite limit; disabled|enabled" }, | |
494 | { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" }, | |
495 | { "picodrive_region", "Region; Auto|Japan NTSC|Japan PAL|US|Europe" }, | |
0fa9e859 | 496 | { "picodrive_region_fps", "Region FPS; Auto|NTSC|PAL" }, |
e1360c66 | 497 | { "picodrive_aspect", "Core-provided aspect ratio; PAR|4/3|CRT" }, |
0185b677 | 498 | #ifdef DRC_SH2 |
eac0e638 | 499 | { "picodrive_drc", "Dynamic recompilers; enabled|disabled" }, |
0185b677 | 500 | #endif |
eac0e638 | 501 | { NULL, NULL }, |
502 | }; | |
2446536b | 503 | |
eac0e638 | 504 | environ_cb = cb; |
2446536b | 505 | |
eac0e638 | 506 | cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars); |
2446536b | 507 | } |
508 | ||
509 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } | |
510 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } | |
511 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } | |
512 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } | |
513 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } | |
514 | ||
515 | unsigned retro_api_version(void) | |
516 | { | |
eac0e638 | 517 | return RETRO_API_VERSION; |
2446536b | 518 | } |
519 | ||
520 | void retro_set_controller_port_device(unsigned port, unsigned device) | |
521 | { | |
522 | } | |
523 | ||
524 | void retro_get_system_info(struct retro_system_info *info) | |
525 | { | |
eac0e638 | 526 | memset(info, 0, sizeof(*info)); |
527 | info->library_name = "PicoDrive"; | |
528 | info->library_version = VERSION; | |
529 | info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms"; | |
530 | info->need_fullpath = true; | |
2446536b | 531 | } |
532 | ||
533 | void retro_get_system_av_info(struct retro_system_av_info *info) | |
534 | { | |
eac0e638 | 535 | memset(info, 0, sizeof(*info)); |
536 | info->timing.fps = Pico.m.pal ? 50 : 60; | |
537 | info->timing.sample_rate = 44100; | |
e1360c66 | 538 | info->geometry.base_width = vout_width; |
eac0e638 | 539 | info->geometry.base_height = vout_height; |
e1360c66 D |
540 | info->geometry.max_width = vout_width; |
541 | info->geometry.max_height = vout_height; | |
542 | ||
543 | float common_width = vout_width; | |
544 | if (user_vout_width != 0) | |
545 | common_width = user_vout_width; | |
546 | ||
547 | info->geometry.aspect_ratio = common_width / vout_height; | |
2446536b | 548 | } |
549 | ||
86b38dc4 | 550 | /* savestates */ |
551 | struct savestate_state { | |
eac0e638 | 552 | const char *load_buf; |
553 | char *save_buf; | |
554 | size_t size; | |
555 | size_t pos; | |
86b38dc4 | 556 | }; |
557 | ||
558 | size_t state_read(void *p, size_t size, size_t nmemb, void *file) | |
559 | { | |
eac0e638 | 560 | struct savestate_state *state = file; |
561 | size_t bsize = size * nmemb; | |
86b38dc4 | 562 | |
eac0e638 | 563 | if (state->pos + bsize > state->size) { |
f5d4045b | 564 | if (log_cb) |
565 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
566 | state->pos + bsize, state->size); | |
eac0e638 | 567 | bsize = state->size - state->pos; |
568 | if ((int)bsize <= 0) | |
569 | return 0; | |
570 | } | |
571 | ||
572 | memcpy(p, state->load_buf + state->pos, bsize); | |
573 | state->pos += bsize; | |
574 | return bsize; | |
86b38dc4 | 575 | } |
576 | ||
577 | size_t state_write(void *p, size_t size, size_t nmemb, void *file) | |
578 | { | |
eac0e638 | 579 | struct savestate_state *state = file; |
580 | size_t bsize = size * nmemb; | |
86b38dc4 | 581 | |
eac0e638 | 582 | if (state->pos + bsize > state->size) { |
f5d4045b | 583 | if (log_cb) |
584 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
585 | state->pos + bsize, state->size); | |
eac0e638 | 586 | bsize = state->size - state->pos; |
587 | if ((int)bsize <= 0) | |
588 | return 0; | |
589 | } | |
590 | ||
591 | memcpy(state->save_buf + state->pos, p, bsize); | |
592 | state->pos += bsize; | |
593 | return bsize; | |
86b38dc4 | 594 | } |
595 | ||
596 | size_t state_skip(void *p, size_t size, size_t nmemb, void *file) | |
597 | { | |
eac0e638 | 598 | struct savestate_state *state = file; |
599 | size_t bsize = size * nmemb; | |
86b38dc4 | 600 | |
eac0e638 | 601 | state->pos += bsize; |
602 | return bsize; | |
86b38dc4 | 603 | } |
604 | ||
605 | size_t state_eof(void *file) | |
606 | { | |
eac0e638 | 607 | struct savestate_state *state = file; |
86b38dc4 | 608 | |
eac0e638 | 609 | return state->pos >= state->size; |
86b38dc4 | 610 | } |
611 | ||
612 | int state_fseek(void *file, long offset, int whence) | |
613 | { | |
eac0e638 | 614 | struct savestate_state *state = file; |
615 | ||
616 | switch (whence) { | |
617 | case SEEK_SET: | |
618 | state->pos = offset; | |
619 | break; | |
620 | case SEEK_CUR: | |
621 | state->pos += offset; | |
622 | break; | |
623 | case SEEK_END: | |
624 | state->pos = state->size + offset; | |
625 | break; | |
626 | } | |
627 | return (int)state->pos; | |
86b38dc4 | 628 | } |
629 | ||
630 | /* savestate sizes vary wildly depending if cd/32x or | |
631 | * carthw is active, so run the whole thing to get size */ | |
eac0e638 | 632 | size_t retro_serialize_size(void) |
633 | { | |
634 | struct savestate_state state = { 0, }; | |
635 | int ret; | |
86b38dc4 | 636 | |
eac0e638 | 637 | ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek); |
638 | if (ret != 0) | |
639 | return 0; | |
86b38dc4 | 640 | |
eac0e638 | 641 | return state.pos; |
2446536b | 642 | } |
643 | ||
644 | bool retro_serialize(void *data, size_t size) | |
eac0e638 | 645 | { |
646 | struct savestate_state state = { 0, }; | |
647 | int ret; | |
86b38dc4 | 648 | |
eac0e638 | 649 | state.save_buf = data; |
650 | state.size = size; | |
651 | state.pos = 0; | |
86b38dc4 | 652 | |
eac0e638 | 653 | ret = PicoStateFP(&state, 1, NULL, state_write, |
654 | NULL, state_fseek); | |
655 | return ret == 0; | |
2446536b | 656 | } |
657 | ||
658 | bool retro_unserialize(const void *data, size_t size) | |
659 | { | |
eac0e638 | 660 | struct savestate_state state = { 0, }; |
661 | int ret; | |
86b38dc4 | 662 | |
eac0e638 | 663 | state.load_buf = data; |
664 | state.size = size; | |
665 | state.pos = 0; | |
86b38dc4 | 666 | |
eac0e638 | 667 | ret = PicoStateFP(&state, 0, state_read, NULL, |
668 | state_eof, state_fseek); | |
669 | return ret == 0; | |
2446536b | 670 | } |
671 | ||
672 | /* cheats - TODO */ | |
673 | void retro_cheat_reset(void) | |
674 | { | |
675 | } | |
676 | ||
677 | void retro_cheat_set(unsigned index, bool enabled, const char *code) | |
678 | { | |
679 | } | |
680 | ||
681 | /* multidisk support */ | |
682 | static bool disk_ejected; | |
683 | static unsigned int disk_current_index; | |
684 | static unsigned int disk_count; | |
685 | static struct disks_state { | |
eac0e638 | 686 | char *fname; |
2446536b | 687 | } disks[8]; |
688 | ||
689 | static bool disk_set_eject_state(bool ejected) | |
690 | { | |
eac0e638 | 691 | // TODO? |
692 | disk_ejected = ejected; | |
693 | return true; | |
2446536b | 694 | } |
695 | ||
696 | static bool disk_get_eject_state(void) | |
697 | { | |
eac0e638 | 698 | return disk_ejected; |
2446536b | 699 | } |
700 | ||
701 | static unsigned int disk_get_image_index(void) | |
702 | { | |
eac0e638 | 703 | return disk_current_index; |
2446536b | 704 | } |
705 | ||
706 | static bool disk_set_image_index(unsigned int index) | |
707 | { | |
eac0e638 | 708 | enum cd_img_type cd_type; |
709 | int ret; | |
2446536b | 710 | |
eac0e638 | 711 | if (index >= sizeof(disks) / sizeof(disks[0])) |
712 | return false; | |
2446536b | 713 | |
eac0e638 | 714 | if (disks[index].fname == NULL) { |
f5d4045b | 715 | if (log_cb) |
716 | log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index); | |
2446536b | 717 | |
eac0e638 | 718 | // RetroArch specifies "no disk" with index == count, |
719 | // so don't fail here.. | |
720 | disk_current_index = index; | |
721 | return true; | |
722 | } | |
2446536b | 723 | |
f5d4045b | 724 | if (log_cb) |
725 | log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index, | |
726 | disks[index].fname); | |
2446536b | 727 | |
eac0e638 | 728 | ret = -1; |
729 | cd_type = PicoCdCheck(disks[index].fname, NULL); | |
730 | if (cd_type != CIT_NOT_CD) | |
731 | ret = cdd_load(disks[index].fname, cd_type); | |
732 | if (ret != 0) { | |
f5d4045b | 733 | if (log_cb) |
734 | log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n"); | |
eac0e638 | 735 | return 0; |
736 | } | |
2446536b | 737 | |
eac0e638 | 738 | disk_current_index = index; |
739 | return true; | |
2446536b | 740 | } |
741 | ||
742 | static unsigned int disk_get_num_images(void) | |
743 | { | |
eac0e638 | 744 | return disk_count; |
2446536b | 745 | } |
746 | ||
747 | static bool disk_replace_image_index(unsigned index, | |
eac0e638 | 748 | const struct retro_game_info *info) |
2446536b | 749 | { |
eac0e638 | 750 | bool ret = true; |
2446536b | 751 | |
eac0e638 | 752 | if (index >= sizeof(disks) / sizeof(disks[0])) |
753 | return false; | |
2446536b | 754 | |
eac0e638 | 755 | if (disks[index].fname != NULL) |
756 | free(disks[index].fname); | |
757 | disks[index].fname = NULL; | |
2446536b | 758 | |
eac0e638 | 759 | if (info != NULL) { |
760 | disks[index].fname = strdup(info->path); | |
761 | if (index == disk_current_index) | |
762 | ret = disk_set_image_index(index); | |
763 | } | |
2446536b | 764 | |
eac0e638 | 765 | return ret; |
2446536b | 766 | } |
767 | ||
768 | static bool disk_add_image_index(void) | |
769 | { | |
eac0e638 | 770 | if (disk_count >= sizeof(disks) / sizeof(disks[0])) |
771 | return false; | |
2446536b | 772 | |
eac0e638 | 773 | disk_count++; |
774 | return true; | |
2446536b | 775 | } |
776 | ||
777 | static struct retro_disk_control_callback disk_control = { | |
eac0e638 | 778 | disk_set_eject_state, |
779 | disk_get_eject_state, | |
780 | disk_get_image_index, | |
781 | disk_set_image_index, | |
782 | disk_get_num_images, | |
783 | disk_replace_image_index, | |
784 | disk_add_image_index, | |
2446536b | 785 | }; |
786 | ||
787 | static void disk_tray_open(void) | |
788 | { | |
f5d4045b | 789 | if (log_cb) |
790 | log_cb(RETRO_LOG_INFO, "cd tray open\n"); | |
eac0e638 | 791 | disk_ejected = 1; |
2446536b | 792 | } |
793 | ||
794 | static void disk_tray_close(void) | |
795 | { | |
f5d4045b | 796 | if (log_cb) |
797 | log_cb(RETRO_LOG_INFO, "cd tray close\n"); | |
eac0e638 | 798 | disk_ejected = 0; |
2446536b | 799 | } |
800 | ||
801 | ||
802 | static const char * const biosfiles_us[] = { | |
eac0e638 | 803 | "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U" |
2446536b | 804 | }; |
805 | static const char * const biosfiles_eu[] = { | |
eac0e638 | 806 | "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E" |
2446536b | 807 | }; |
808 | static const char * const biosfiles_jp[] = { | |
eac0e638 | 809 | "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J" |
2446536b | 810 | }; |
811 | ||
812 | static void make_system_path(char *buf, size_t buf_size, | |
eac0e638 | 813 | const char *name, const char *ext) |
2446536b | 814 | { |
eac0e638 | 815 | const char *dir = NULL; |
816 | ||
817 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) { | |
818 | snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext); | |
819 | } | |
820 | else { | |
821 | snprintf(buf, buf_size, "%s%s", name, ext); | |
822 | } | |
2446536b | 823 | } |
824 | ||
825 | static const char *find_bios(int *region, const char *cd_fname) | |
826 | { | |
eac0e638 | 827 | const char * const *files; |
828 | static char path[256]; | |
829 | int i, count; | |
830 | FILE *f = NULL; | |
831 | ||
832 | if (*region == 4) { // US | |
833 | files = biosfiles_us; | |
834 | count = sizeof(biosfiles_us) / sizeof(char *); | |
835 | } else if (*region == 8) { // EU | |
836 | files = biosfiles_eu; | |
837 | count = sizeof(biosfiles_eu) / sizeof(char *); | |
838 | } else if (*region == 1 || *region == 2) { | |
839 | files = biosfiles_jp; | |
840 | count = sizeof(biosfiles_jp) / sizeof(char *); | |
841 | } else { | |
842 | return NULL; | |
843 | } | |
844 | ||
845 | for (i = 0; i < count; i++) | |
846 | { | |
847 | make_system_path(path, sizeof(path), files[i], ".bin"); | |
848 | f = fopen(path, "rb"); | |
849 | if (f != NULL) | |
850 | break; | |
851 | ||
852 | make_system_path(path, sizeof(path), files[i], ".zip"); | |
853 | f = fopen(path, "rb"); | |
854 | if (f != NULL) | |
855 | break; | |
856 | } | |
857 | ||
858 | if (f != NULL) { | |
f5d4045b | 859 | if (log_cb) |
860 | log_cb(RETRO_LOG_INFO, "using bios: %s\n", path); | |
eac0e638 | 861 | fclose(f); |
862 | return path; | |
863 | } | |
2446536b | 864 | |
eac0e638 | 865 | return NULL; |
2446536b | 866 | } |
867 | ||
868 | bool retro_load_game(const struct retro_game_info *info) | |
869 | { | |
eac0e638 | 870 | enum media_type_e media_type; |
871 | static char carthw_path[256]; | |
872 | size_t i; | |
2446536b | 873 | |
a1f2e1b1 | 874 | struct retro_input_descriptor desc[] = { |
875 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
876 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
877 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
878 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
879 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
880 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
881 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
882 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
883 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
884 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
17d4733d D |
885 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, |
886 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
a1f2e1b1 | 887 | |
888 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
889 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
890 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
891 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
892 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
893 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
894 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
895 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
896 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
897 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
17d4733d D |
898 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, |
899 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
a1f2e1b1 | 900 | |
901 | { 0 }, | |
902 | }; | |
903 | ||
17d4733d D |
904 | struct retro_input_descriptor desc_sms[] = { |
905 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
906 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
907 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
908 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
0fa9e859 D |
909 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, |
910 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, | |
911 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, | |
17d4733d D |
912 | |
913 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
914 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
915 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
916 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
0fa9e859 D |
917 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, |
918 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, | |
919 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, | |
17d4733d D |
920 | |
921 | { 0 }, | |
922 | }; | |
a1f2e1b1 | 923 | |
eac0e638 | 924 | enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; |
925 | if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { | |
f5d4045b | 926 | if (log_cb) |
927 | log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n"); | |
eac0e638 | 928 | return false; |
929 | } | |
2446536b | 930 | |
eac0e638 | 931 | if (info == NULL || info->path == NULL) { |
f5d4045b | 932 | if (log_cb) |
933 | log_cb(RETRO_LOG_ERROR, "info->path required\n"); | |
eac0e638 | 934 | return false; |
935 | } | |
2446536b | 936 | |
eac0e638 | 937 | for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) { |
938 | if (disks[i].fname != NULL) { | |
939 | free(disks[i].fname); | |
940 | disks[i].fname = NULL; | |
941 | } | |
942 | } | |
2446536b | 943 | |
eac0e638 | 944 | disk_current_index = 0; |
945 | disk_count = 1; | |
946 | disks[0].fname = strdup(info->path); | |
2446536b | 947 | |
eac0e638 | 948 | make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg"); |
2446536b | 949 | |
eac0e638 | 950 | media_type = PicoLoadMedia(info->path, carthw_path, |
951 | find_bios, NULL); | |
2446536b | 952 | |
eac0e638 | 953 | switch (media_type) { |
954 | case PM_BAD_DETECT: | |
f5d4045b | 955 | if (log_cb) |
956 | log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n"); | |
eac0e638 | 957 | return false; |
958 | case PM_BAD_CD: | |
f5d4045b | 959 | if (log_cb) |
960 | log_cb(RETRO_LOG_ERROR, "Invalid CD image\n"); | |
eac0e638 | 961 | return false; |
962 | case PM_BAD_CD_NO_BIOS: | |
f5d4045b | 963 | if (log_cb) |
964 | log_cb(RETRO_LOG_ERROR, "Missing BIOS\n"); | |
eac0e638 | 965 | return false; |
966 | case PM_ERROR: | |
f5d4045b | 967 | if (log_cb) |
968 | log_cb(RETRO_LOG_ERROR, "Load error\n"); | |
eac0e638 | 969 | return false; |
970 | default: | |
971 | break; | |
972 | } | |
2446536b | 973 | |
17d4733d D |
974 | if (media_type == PM_MARK3) |
975 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc_sms); | |
976 | else | |
977 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); | |
978 | ||
eac0e638 | 979 | PicoLoopPrepare(); |
2446536b | 980 | |
eac0e638 | 981 | PicoWriteSound = snd_write; |
982 | memset(sndBuffer, 0, sizeof(sndBuffer)); | |
983 | PsndOut = sndBuffer; | |
984 | PsndRerate(0); | |
2446536b | 985 | |
eac0e638 | 986 | return true; |
2446536b | 987 | } |
988 | ||
989 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) | |
990 | { | |
eac0e638 | 991 | return false; |
2446536b | 992 | } |
993 | ||
eac0e638 | 994 | void retro_unload_game(void) |
2446536b | 995 | { |
996 | } | |
997 | ||
998 | unsigned retro_get_region(void) | |
999 | { | |
eac0e638 | 1000 | return Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; |
2446536b | 1001 | } |
1002 | ||
c3e69f81 | 1003 | void *retro_get_memory_data(unsigned type) |
2446536b | 1004 | { |
c3e69f81 | 1005 | uint8_t* data; |
2446536b | 1006 | |
c3e69f81 DS |
1007 | switch(type) |
1008 | { | |
1009 | case RETRO_MEMORY_SAVE_RAM: | |
1010 | if (PicoAHW & PAHW_MCD) | |
1011 | data = Pico_mcd->bram; | |
1012 | else | |
1013 | data = SRam.data; | |
1014 | break; | |
1015 | case RETRO_MEMORY_SYSTEM_RAM: | |
1016 | if (PicoAHW & PAHW_SMS) | |
1017 | data = Pico.vramb; | |
1018 | else | |
1019 | data = Pico.ram; | |
1020 | break; | |
1021 | default: | |
1022 | data = NULL; | |
1023 | break; | |
1024 | } | |
1025 | ||
1026 | return data; | |
2446536b | 1027 | } |
1028 | ||
c3e69f81 | 1029 | size_t retro_get_memory_size(unsigned type) |
2446536b | 1030 | { |
eac0e638 | 1031 | unsigned int i; |
1032 | int sum; | |
c3e69f81 DS |
1033 | |
1034 | switch(type) | |
1035 | { | |
1036 | case RETRO_MEMORY_SAVE_RAM: | |
1037 | if (PicoAHW & PAHW_MCD) | |
1038 | // bram | |
1039 | return 0x2000; | |
1040 | ||
1041 | if (Pico.m.frame_count == 0) | |
1042 | return SRam.size; | |
1043 | ||
1044 | // if game doesn't write to sram, don't report it to | |
1045 | // libretro so that RA doesn't write out zeroed .srm | |
1046 | for (i = 0, sum = 0; i < SRam.size; i++) | |
1047 | sum |= SRam.data[i]; | |
1048 | ||
1049 | return (sum != 0) ? SRam.size : 0; | |
1050 | ||
1051 | case RETRO_MEMORY_SYSTEM_RAM: | |
1052 | if (PicoAHW & PAHW_SMS) | |
1053 | return sizeof(Pico.vramb); | |
1054 | else | |
1055 | return sizeof(Pico.ram); | |
1056 | ||
1057 | default: | |
1058 | return 0; | |
1059 | } | |
1060 | ||
2446536b | 1061 | } |
1062 | ||
1063 | void retro_reset(void) | |
1064 | { | |
eac0e638 | 1065 | PicoReset(); |
2446536b | 1066 | } |
1067 | ||
1068 | static const unsigned short retro_pico_map[] = { | |
eac0e638 | 1069 | 1 << GBTN_B, |
1070 | 1 << GBTN_A, | |
1071 | 1 << GBTN_MODE, | |
1072 | 1 << GBTN_START, | |
1073 | 1 << GBTN_UP, | |
1074 | 1 << GBTN_DOWN, | |
1075 | 1 << GBTN_LEFT, | |
1076 | 1 << GBTN_RIGHT, | |
1077 | 1 << GBTN_C, | |
1078 | 1 << GBTN_Y, | |
1079 | 1 << GBTN_X, | |
1080 | 1 << GBTN_Z, | |
2446536b | 1081 | }; |
1082 | #define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0])) | |
1083 | ||
1084 | static void snd_write(int len) | |
1085 | { | |
eac0e638 | 1086 | audio_batch_cb(PsndOut, len / 4); |
2446536b | 1087 | } |
1088 | ||
531a8f38 | 1089 | static enum input_device input_name_to_val(const char *name) |
1090 | { | |
eac0e638 | 1091 | if (strcmp(name, "3 button pad") == 0) |
1092 | return PICO_INPUT_PAD_3BTN; | |
1093 | if (strcmp(name, "6 button pad") == 0) | |
1094 | return PICO_INPUT_PAD_6BTN; | |
1095 | if (strcmp(name, "None") == 0) | |
1096 | return PICO_INPUT_NOTHING; | |
531a8f38 | 1097 | |
f5d4045b | 1098 | if (log_cb) |
1099 | log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name); | |
eac0e638 | 1100 | return PICO_INPUT_PAD_3BTN; |
531a8f38 | 1101 | } |
1102 | ||
1103 | static void update_variables(void) | |
1104 | { | |
eac0e638 | 1105 | struct retro_variable var; |
1106 | ||
1107 | var.value = NULL; | |
1108 | var.key = "picodrive_input1"; | |
1109 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1110 | PicoSetInputDevice(0, input_name_to_val(var.value)); | |
1111 | ||
1112 | var.value = NULL; | |
1113 | var.key = "picodrive_input2"; | |
1114 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1115 | PicoSetInputDevice(1, input_name_to_val(var.value)); | |
1116 | ||
1117 | var.value = NULL; | |
1118 | var.key = "picodrive_sprlim"; | |
1119 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1120 | if (strcmp(var.value, "enabled") == 0) | |
1121 | PicoOpt |= POPT_DIS_SPRITE_LIM; | |
1122 | else | |
1123 | PicoOpt &= ~POPT_DIS_SPRITE_LIM; | |
1124 | } | |
1125 | ||
1126 | var.value = NULL; | |
1127 | var.key = "picodrive_ramcart"; | |
1128 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1129 | if (strcmp(var.value, "enabled") == 0) | |
1130 | PicoOpt |= POPT_EN_MCD_RAMCART; | |
1131 | else | |
1132 | PicoOpt &= ~POPT_EN_MCD_RAMCART; | |
1133 | } | |
1134 | ||
48582bcf | 1135 | int OldPicoRegionOverride = PicoRegionOverride; |
eac0e638 | 1136 | var.value = NULL; |
1137 | var.key = "picodrive_region"; | |
1138 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1139 | if (strcmp(var.value, "Auto") == 0) | |
1140 | PicoRegionOverride = 0; | |
1141 | else if (strcmp(var.value, "Japan NTSC") == 0) | |
1142 | PicoRegionOverride = 1; | |
1143 | else if (strcmp(var.value, "Japan PAL") == 0) | |
1144 | PicoRegionOverride = 2; | |
1145 | else if (strcmp(var.value, "US") == 0) | |
1146 | PicoRegionOverride = 4; | |
1147 | else if (strcmp(var.value, "Europe") == 0) | |
1148 | PicoRegionOverride = 8; | |
1149 | } | |
b38bccea | 1150 | |
48582bcf D |
1151 | int OldPicoRegionFPSOverride = PicoRegionFPSOverride; |
1152 | var.value = NULL; | |
1153 | var.key = "picodrive_region_fps"; | |
1154 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1155 | if (strcmp(var.value, "Auto") == 0) | |
1156 | PicoRegionFPSOverride = 0; | |
1157 | else if (strcmp(var.value, "NTSC") == 0) | |
1158 | PicoRegionFPSOverride = 1; | |
1159 | else if (strcmp(var.value, "PAL") == 0) | |
1160 | PicoRegionFPSOverride = 2; | |
1161 | } | |
17d4733d | 1162 | |
48582bcf D |
1163 | // Update region, fps and sound flags if needed |
1164 | if (PicoRegionOverride != OldPicoRegionOverride || | |
1165 | PicoRegionFPSOverride != OldPicoRegionFPSOverride) | |
1166 | { | |
1167 | PicoDetectRegion(); | |
1168 | PicoLoopPrepare(); | |
1169 | PsndRerate(1); | |
1170 | } | |
17d4733d | 1171 | |
e1360c66 D |
1172 | float old_user_vout_width = user_vout_width; |
1173 | var.value = NULL; | |
1174 | var.key = "picodrive_aspect"; | |
1175 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1176 | if (strcmp(var.value, "4/3") == 0) | |
1177 | user_vout_width = VOUT_4_3; | |
1178 | else if (strcmp(var.value, "CRT") == 0) | |
1179 | user_vout_width = VOUT_CRT; | |
1180 | else | |
1181 | user_vout_width = VOUT_PAR; | |
1182 | } | |
1183 | ||
1184 | if (user_vout_width != old_user_vout_width) | |
1185 | { | |
1186 | // Update the geometry | |
1187 | struct retro_system_av_info av_info; | |
1188 | retro_get_system_av_info(&av_info); | |
1189 | environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); | |
1190 | } | |
1191 | ||
0185b677 | 1192 | #ifdef DRC_SH2 |
eac0e638 | 1193 | var.value = NULL; |
1194 | var.key = "picodrive_drc"; | |
1195 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1196 | if (strcmp(var.value, "enabled") == 0) | |
1197 | PicoOpt |= POPT_EN_DRC; | |
1198 | else | |
1199 | PicoOpt &= ~POPT_EN_DRC; | |
1200 | } | |
0185b677 | 1201 | #endif |
0c732676 | 1202 | #ifdef _3DS |
1203 | if(!ctr_svchack_successful) | |
1204 | PicoOpt &= ~POPT_EN_DRC; | |
1205 | #endif | |
531a8f38 | 1206 | } |
1207 | ||
eac0e638 | 1208 | void retro_run(void) |
2446536b | 1209 | { |
eac0e638 | 1210 | bool updated = false; |
1211 | int pad, i; | |
2446536b | 1212 | |
eac0e638 | 1213 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) |
1214 | update_variables(); | |
2446536b | 1215 | |
0c732676 | 1216 | input_poll_cb(); |
2446536b | 1217 | |
eac0e638 | 1218 | PicoPad[0] = PicoPad[1] = 0; |
1219 | for (pad = 0; pad < 2; pad++) | |
1220 | for (i = 0; i < RETRO_PICO_MAP_LEN; i++) | |
1221 | if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i)) | |
1222 | PicoPad[pad] |= retro_pico_map[i]; | |
2446536b | 1223 | |
eac0e638 | 1224 | PicoFrame(); |
2446536b | 1225 | |
eac0e638 | 1226 | video_cb((short *)vout_buf + vout_offset, |
1227 | vout_width, vout_height, vout_width * 2); | |
2446536b | 1228 | } |
1229 | ||
2f832b7f | 1230 | static void check_system_specs(void) |
1231 | { | |
1232 | /* TODO - set different performance level for 32X - 6 for ARM dynarec, higher for interpreter core */ | |
1233 | unsigned level = 5; | |
1234 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
1235 | } | |
1236 | ||
2446536b | 1237 | void retro_init(void) |
1238 | { | |
f5d4045b | 1239 | struct retro_log_callback log; |
eac0e638 | 1240 | int level; |
2446536b | 1241 | |
eac0e638 | 1242 | level = 0; |
1243 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
2446536b | 1244 | |
c681e48d | 1245 | if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) |
f5d4045b | 1246 | log_cb = log.log; |
c681e48d | 1247 | else |
1248 | log_cb = NULL; | |
f5d4045b | 1249 | |
eac0e638 | 1250 | environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); |
2446536b | 1251 | |
0c732676 | 1252 | #ifdef _3DS |
1253 | ctr_svchack_successful = ctr_svchack_init(); | |
1254 | #endif | |
1255 | ||
eac0e638 | 1256 | PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
1257 | | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX | |
1258 | | POPT_EN_32X|POPT_EN_PWM | |
1259 | | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER; | |
720bfc5d | 1260 | #ifdef __arm__ |
0c732676 | 1261 | #ifdef _3DS |
1262 | if (ctr_svchack_successful) | |
1263 | #endif | |
1264 | PicoOpt |= POPT_EN_DRC; | |
720bfc5d | 1265 | #endif |
eac0e638 | 1266 | PsndRate = 44100; |
1267 | PicoAutoRgnOrder = 0x184; // US, EU, JP | |
2446536b | 1268 | |
eac0e638 | 1269 | vout_width = 320; |
0c732676 | 1270 | vout_height = 240; |
ad2ccfbc | 1271 | #ifdef _3DS |
1272 | vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80); | |
1273 | #else | |
0c732676 | 1274 | vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); |
ad2ccfbc | 1275 | #endif |
2446536b | 1276 | |
0c732676 | 1277 | PicoInit(); |
1278 | PicoDrawSetOutFormat(PDF_RGB555, 0); | |
1279 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
2446536b | 1280 | |
eac0e638 | 1281 | //PicoMessage = plat_status_msg_busy_next; |
1282 | PicoMCDopenTray = disk_tray_open; | |
1283 | PicoMCDcloseTray = disk_tray_close; | |
531a8f38 | 1284 | |
0c732676 | 1285 | update_variables(); |
2446536b | 1286 | } |
1287 | ||
1288 | void retro_deinit(void) | |
1289 | { | |
ad2ccfbc | 1290 | #ifdef _3DS |
1291 | linearFree(vout_buf); | |
1292 | #else | |
1293 | free(vout_buf); | |
1294 | #endif | |
1295 | vout_buf = NULL; | |
eac0e638 | 1296 | PicoExit(); |
2446536b | 1297 | } |