Commit | Line | Data |
---|---|---|
2446536b | 1 | /* |
2 | * libretro core glue for PicoDrive | |
3 | * (C) notaz, 2013 | |
0d87bd6a | 4 | * (C) aliaspider, 2016 |
e8454cb0 | 5 | * (C) Daniel De Matteis, 2013 |
2446536b | 6 | * |
7 | * This work is licensed under the terms of MAME license. | |
8 | * See COPYING file in the top-level directory. | |
9 | */ | |
10 | ||
11 | #define _GNU_SOURCE 1 // mremap | |
12 | #include <stdio.h> | |
13 | #include <stdarg.h> | |
14 | #include <string.h> | |
e8b61936 | 15 | #ifndef _WIN32 |
f18d0e08 | 16 | #ifndef NO_MMAP |
2446536b | 17 | #include <sys/mman.h> |
f18d0e08 | 18 | #endif |
e8b61936 | 19 | #else |
6f1133bc | 20 | #include <io.h> |
e8b61936 | 21 | #include <windows.h> |
6f1133bc | 22 | #include <sys/types.h> |
e8b61936 | 23 | #endif |
c25d78ee | 24 | #include <errno.h> |
2446536b | 25 | #ifdef __MACH__ |
26 | #include <libkern/OSCacheControl.h> | |
27 | #endif | |
28 | ||
0c732676 | 29 | #ifdef _3DS |
30 | #include "3ds/3ds_utils.h" | |
ad2ccfbc | 31 | #define MEMOP_MAP 4 |
32 | #define MEMOP_UNMAP 5 | |
33 | #define MEMOP_PROT 6 | |
34 | ||
0c732676 | 35 | int svcDuplicateHandle(unsigned int* out, unsigned int original); |
36 | int svcCloseHandle(unsigned int handle); | |
37 | int svcControlProcessMemory(unsigned int process, void* addr0, void* addr1, | |
38 | unsigned int size, unsigned int type, unsigned int perm); | |
ad2ccfbc | 39 | void* linearMemAlign(size_t size, size_t alignment); |
40 | void linearFree(void* mem); | |
0c732676 | 41 | |
42 | static int ctr_svchack_successful = 0; | |
88f7643f | 43 | |
44 | #elif defined(VITA) | |
45 | #define TARGET_SIZE_2 24 // 2^24 = 16 megabytes | |
46 | ||
47 | #include <psp2/kernel/sysmem.h> | |
48 | static int sceBlock; | |
49 | int getVMBlock(); | |
50 | int _newlib_vm_size_user = 1 << TARGET_SIZE_2; | |
51 | ||
0c732676 | 52 | #endif |
53 | ||
2446536b | 54 | #include <pico/pico_int.h> |
86b38dc4 | 55 | #include <pico/state.h> |
5345c2b9 T |
56 | #include "../common/input_pico.h" |
57 | #include "../common/version.h" | |
2446536b | 58 | #include "libretro.h" |
59 | ||
f5d4045b | 60 | static retro_log_printf_t log_cb; |
2446536b | 61 | static retro_video_refresh_t video_cb; |
62 | static retro_input_poll_t input_poll_cb; | |
63 | static retro_input_state_t input_state_cb; | |
64 | static retro_environment_t environ_cb; | |
65 | static retro_audio_sample_batch_t audio_batch_cb; | |
66 | ||
2446536b | 67 | #define VOUT_MAX_WIDTH 320 |
68 | #define VOUT_MAX_HEIGHT 240 | |
e1360c66 D |
69 | |
70 | static const float VOUT_PAR = 0.0; | |
71 | static const float VOUT_4_3 = (224.0f * (4.0f / 3.0f)); | |
72 | static const float VOUT_CRT = (224.0f * 1.29911f); | |
73 | ||
2446536b | 74 | static void *vout_buf; |
51c08950 | 75 | static int vout_width, vout_height, vout_offset; |
e1360c66 | 76 | static float user_vout_width = 0.0; |
2446536b | 77 | |
ed06ffd3 T |
78 | #ifdef _MSC_VER |
79 | static short sndBuffer[2*44100/50]; | |
80 | #else | |
2446536b | 81 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50]; |
ed06ffd3 | 82 | #endif |
2446536b | 83 | |
2446536b | 84 | static void snd_write(int len); |
85 | ||
86 | #ifdef _WIN32 | |
87 | #define SLASH '\\' | |
88 | #else | |
89 | #define SLASH '/' | |
90 | #endif | |
91 | ||
92 | /* functions called by the core */ | |
93 | ||
94 | void cache_flush_d_inval_i(void *start, void *end) | |
95 | { | |
96 | #ifdef __arm__ | |
88f7643f | 97 | size_t len = (char *)end - (char *)start; |
2446536b | 98 | #if defined(__BLACKBERRY_QNX__) |
eac0e638 | 99 | msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
2446536b | 100 | #elif defined(__MACH__) |
eac0e638 | 101 | sys_dcache_flush(start, len); |
102 | sys_icache_invalidate(start, len); | |
0c732676 | 103 | #elif defined(_3DS) |
104 | ctr_flush_invalidate_cache(); | |
88f7643f | 105 | #elif defined(VITA) |
106 | sceKernelSyncVMDomain(sceBlock, start, len); | |
2446536b | 107 | #else |
0c732676 | 108 | __clear_cache(start, end); |
2446536b | 109 | #endif |
110 | #endif | |
111 | } | |
112 | ||
e8b61936 | 113 | #ifdef _WIN32 |
6f1133bc T |
114 | /* mmap() replacement for Windows |
115 | * | |
116 | * Author: Mike Frysinger <vapier@gentoo.org> | |
117 | * Placed into the public domain | |
118 | */ | |
119 | ||
120 | /* References: | |
121 | * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx | |
122 | * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx | |
123 | * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx | |
124 | * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx | |
125 | */ | |
126 | ||
127 | #define PROT_READ 0x1 | |
128 | #define PROT_WRITE 0x2 | |
129 | /* This flag is only available in WinXP+ */ | |
130 | #ifdef FILE_MAP_EXECUTE | |
131 | #define PROT_EXEC 0x4 | |
132 | #else | |
133 | #define PROT_EXEC 0x0 | |
134 | #define FILE_MAP_EXECUTE 0 | |
135 | #endif | |
136 | ||
137 | #define MAP_SHARED 0x01 | |
138 | #define MAP_PRIVATE 0x02 | |
139 | #define MAP_ANONYMOUS 0x20 | |
140 | #define MAP_ANON MAP_ANONYMOUS | |
141 | #define MAP_FAILED ((void *) -1) | |
142 | ||
143 | #ifdef __USE_FILE_OFFSET64 | |
144 | # define DWORD_HI(x) (x >> 32) | |
145 | # define DWORD_LO(x) ((x) & 0xffffffff) | |
146 | #else | |
147 | # define DWORD_HI(x) (0) | |
148 | # define DWORD_LO(x) (x) | |
149 | #endif | |
150 | ||
151 | static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | |
2446536b | 152 | { |
eac0e638 | 153 | uint32_t flProtect, dwDesiredAccess; |
154 | off_t end; | |
155 | HANDLE mmap_fd, h; | |
156 | void *ret; | |
157 | ||
158 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) | |
159 | return MAP_FAILED; | |
160 | if (fd == -1) { | |
161 | if (!(flags & MAP_ANON) || offset) | |
162 | return MAP_FAILED; | |
163 | } else if (flags & MAP_ANON) | |
164 | return MAP_FAILED; | |
165 | ||
166 | if (prot & PROT_WRITE) { | |
167 | if (prot & PROT_EXEC) | |
168 | flProtect = PAGE_EXECUTE_READWRITE; | |
169 | else | |
170 | flProtect = PAGE_READWRITE; | |
171 | } else if (prot & PROT_EXEC) { | |
172 | if (prot & PROT_READ) | |
173 | flProtect = PAGE_EXECUTE_READ; | |
174 | else if (prot & PROT_EXEC) | |
175 | flProtect = PAGE_EXECUTE; | |
176 | } else | |
177 | flProtect = PAGE_READONLY; | |
178 | ||
179 | end = length + offset; | |
180 | ||
181 | if (fd == -1) | |
182 | mmap_fd = INVALID_HANDLE_VALUE; | |
183 | else | |
184 | mmap_fd = (HANDLE)_get_osfhandle(fd); | |
185 | h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); | |
186 | if (h == NULL) | |
187 | return MAP_FAILED; | |
188 | ||
189 | if (prot & PROT_WRITE) | |
190 | dwDesiredAccess = FILE_MAP_WRITE; | |
191 | else | |
192 | dwDesiredAccess = FILE_MAP_READ; | |
193 | if (prot & PROT_EXEC) | |
194 | dwDesiredAccess |= FILE_MAP_EXECUTE; | |
195 | if (flags & MAP_PRIVATE) | |
196 | dwDesiredAccess |= FILE_MAP_COPY; | |
197 | ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); | |
198 | if (ret == NULL) { | |
199 | CloseHandle(h); | |
200 | ret = MAP_FAILED; | |
201 | } | |
202 | return ret; | |
e8b61936 | 203 | } |
2446536b | 204 | |
6f1133bc | 205 | static void munmap(void *addr, size_t length) |
e8b61936 | 206 | { |
eac0e638 | 207 | UnmapViewOfFile(addr); |
208 | /* ruh-ro, we leaked handle from CreateFileMapping() ... */ | |
e8b61936 | 209 | } |
f18d0e08 | 210 | #elif defined(NO_MMAP) |
5345c2b9 | 211 | #define PROT_EXEC 0x04 |
f18d0e08 | 212 | #define MAP_FAILED 0 |
213 | #define PROT_READ 0 | |
214 | #define PROT_WRITE 0 | |
215 | #define MAP_PRIVATE 0 | |
216 | #define MAP_ANONYMOUS 0 | |
217 | ||
218 | void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off) | |
219 | { | |
220 | return malloc(len); | |
221 | } | |
222 | ||
223 | void munmap(void *base_addr, size_t len) | |
224 | { | |
225 | free(base_addr); | |
226 | } | |
227 | ||
228 | int mprotect(void *addr, size_t len, int prot) | |
229 | { | |
eac0e638 | 230 | /* stub - not really needed at this point since this codepath has no dynarecs */ |
f18d0e08 | 231 | return 0; |
232 | } | |
233 | ||
e8b61936 | 234 | #endif |
8e5639bc | 235 | |
236 | #ifndef MAP_ANONYMOUS | |
237 | #define MAP_ANONYMOUS MAP_ANON | |
238 | #endif | |
239 | ||
0c732676 | 240 | #ifdef _3DS |
241 | typedef struct | |
242 | { | |
243 | unsigned int requested_map; | |
244 | void* buffer; | |
245 | }pico_mmap_t; | |
246 | ||
247 | pico_mmap_t pico_mmaps[] = { | |
248 | {0x02000000, 0}, | |
249 | {0x06000000, 0}, | |
250 | {NULL, 0} | |
251 | }; | |
252 | ||
253 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) | |
254 | { | |
255 | (void)is_fixed; | |
256 | ||
257 | if (ctr_svchack_successful) | |
258 | { | |
259 | pico_mmap_t* pico_mmap; | |
260 | ||
261 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
262 | { | |
263 | if ((pico_mmap->requested_map == addr)) | |
264 | { | |
265 | unsigned int ptr_aligned, tmp; | |
266 | unsigned int currentHandle; | |
267 | unsigned int perm = 0b011; | |
268 | ||
269 | if (need_exec) | |
270 | perm = 0b111; | |
271 | ||
272 | size = (size + 0xFFF) & ~0xFFF; | |
273 | pico_mmap->buffer = malloc(size + 0x1000); | |
274 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
275 | ||
276 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
277 | ||
278 | if(svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, size, MEMOP_MAP, perm) < 0) | |
279 | { | |
280 | if (log_cb) | |
281 | log_cb(RETRO_LOG_ERROR, "could not map memory @0x%08X\n", pico_mmap->requested_map); | |
282 | exit(1); | |
283 | } | |
284 | ||
285 | svcCloseHandle(currentHandle); | |
286 | return (void*)pico_mmap->requested_map; | |
287 | } | |
288 | } | |
289 | } | |
290 | ||
291 | return malloc(size); | |
292 | } | |
293 | ||
294 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
295 | { | |
296 | if (ctr_svchack_successful) | |
297 | { | |
298 | pico_mmap_t* pico_mmap; | |
299 | ||
300 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
301 | { | |
302 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
303 | { | |
304 | unsigned int ptr_aligned; | |
305 | unsigned int currentHandle; | |
306 | void* tmp; | |
307 | ||
308 | oldsize = (oldsize + 0xFFF) & ~0xFFF; | |
309 | newsize = (newsize + 0xFFF) & ~0xFFF; | |
310 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
311 | ||
312 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
313 | ||
314 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, oldsize, MEMOP_UNMAP, 0b011); | |
315 | ||
316 | tmp = realloc(pico_mmap->buffer, newsize + 0x1000); | |
317 | if(!tmp) | |
318 | return NULL; | |
319 | ||
320 | pico_mmap->buffer = tmp; | |
321 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
322 | ||
323 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, newsize, MEMOP_MAP, 0x3); | |
324 | ||
325 | svcCloseHandle(currentHandle); | |
326 | ||
327 | return ptr; | |
328 | } | |
329 | } | |
330 | } | |
331 | ||
332 | return realloc(ptr, newsize); | |
333 | ||
334 | } | |
335 | void plat_munmap(void *ptr, size_t size) | |
336 | { | |
337 | if (ctr_svchack_successful) | |
338 | { | |
339 | pico_mmap_t* pico_mmap; | |
340 | ||
341 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
342 | { | |
343 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
344 | { | |
345 | unsigned int ptr_aligned; | |
346 | unsigned int currentHandle; | |
347 | ||
348 | size = (size + 0xFFF) & ~0xFFF; | |
349 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
350 | ||
351 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
352 | ||
353 | svcControlProcessMemory(currentHandle, (void*)pico_mmap->requested_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0b011); | |
354 | ||
355 | svcCloseHandle(currentHandle); | |
356 | ||
357 | free(pico_mmap->buffer); | |
358 | pico_mmap->buffer = NULL; | |
359 | return; | |
360 | } | |
361 | } | |
362 | } | |
363 | ||
364 | free(ptr); | |
365 | } | |
366 | ||
367 | #else | |
e8b61936 | 368 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) |
369 | { | |
e8b61936 | 370 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; |
371 | void *req, *ret; | |
372 | ||
373 | req = (void *)addr; | |
374 | ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0); | |
375 | if (ret == MAP_FAILED) { | |
f5d4045b | 376 | if (log_cb) |
377 | log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno); | |
e8b61936 | 378 | return NULL; |
379 | } | |
380 | ||
381 | if (addr != 0 && ret != (void *)addr) { | |
f5d4045b | 382 | if (log_cb) |
383 | log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n", | |
384 | addr, ret); | |
e8b61936 | 385 | |
386 | if (is_fixed) { | |
387 | munmap(ret, size); | |
388 | return NULL; | |
389 | } | |
390 | } | |
2446536b | 391 | |
eac0e638 | 392 | return ret; |
2446536b | 393 | } |
394 | ||
395 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
396 | { | |
8c8b7284 | 397 | #ifdef __linux__ |
eac0e638 | 398 | void *ret = mremap(ptr, oldsize, newsize, 0); |
399 | if (ret == MAP_FAILED) | |
400 | return NULL; | |
2446536b | 401 | |
eac0e638 | 402 | return ret; |
8c8b7284 | 403 | #else |
eac0e638 | 404 | void *tmp, *ret; |
405 | size_t preserve_size; | |
406 | ||
407 | preserve_size = oldsize; | |
408 | if (preserve_size > newsize) | |
409 | preserve_size = newsize; | |
410 | tmp = malloc(preserve_size); | |
411 | if (tmp == NULL) | |
412 | return NULL; | |
413 | memcpy(tmp, ptr, preserve_size); | |
414 | ||
415 | munmap(ptr, oldsize); | |
416 | ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE, | |
417 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
418 | if (ret == MAP_FAILED) { | |
419 | free(tmp); | |
420 | return NULL; | |
421 | } | |
422 | memcpy(ret, tmp, preserve_size); | |
423 | free(tmp); | |
424 | return ret; | |
8c8b7284 | 425 | #endif |
2446536b | 426 | } |
427 | ||
428 | void plat_munmap(void *ptr, size_t size) | |
429 | { | |
eac0e638 | 430 | if (ptr != NULL) |
431 | munmap(ptr, size); | |
2446536b | 432 | } |
0c732676 | 433 | #endif |
2446536b | 434 | |
c25d78ee | 435 | int plat_mem_set_exec(void *ptr, size_t size) |
436 | { | |
e8b61936 | 437 | #ifdef _WIN32 |
438 | int ret = VirtualProtect(ptr,size,PAGE_EXECUTE_READWRITE,0); | |
f5d4045b | 439 | if (ret == 0 && log_cb) |
440 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, 0); | |
0c732676 | 441 | #elif defined(_3DS) |
442 | int ret = -1; | |
443 | if (ctr_svchack_successful) | |
444 | { | |
445 | unsigned int currentHandle; | |
446 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
447 | ret = svcControlProcessMemory(currentHandle, ptr, 0x0, | |
448 | size, MEMOP_PROT, 0b111); | |
449 | svcCloseHandle(currentHandle); | |
450 | ctr_flush_invalidate_cache(); | |
451 | ||
452 | } | |
453 | else | |
454 | { | |
455 | if (log_cb) | |
456 | log_cb(RETRO_LOG_ERROR, "plat_mem_set_exec called with no svcControlProcessMemory access\n"); | |
457 | exit(1); | |
458 | } | |
459 | ||
88f7643f | 460 | #elif defined(VITA) |
461 | int ret = sceKernelOpenVMDomain(); | |
e8b61936 | 462 | #else |
463 | int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); | |
f5d4045b | 464 | if (ret != 0 && log_cb) |
465 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno); | |
e8b61936 | 466 | #endif |
eac0e638 | 467 | return ret; |
c25d78ee | 468 | } |
469 | ||
2446536b | 470 | void emu_video_mode_change(int start_line, int line_count, int is_32cols) |
471 | { | |
eac0e638 | 472 | memset(vout_buf, 0, 320 * 240 * 2); |
473 | vout_width = is_32cols ? 256 : 320; | |
474 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
51c08950 | 475 | |
eac0e638 | 476 | vout_height = line_count; |
477 | vout_offset = vout_width * start_line; | |
e1360c66 D |
478 | |
479 | // Update the geometry | |
480 | struct retro_system_av_info av_info; | |
481 | retro_get_system_av_info(&av_info); | |
482 | environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); | |
2446536b | 483 | } |
484 | ||
485 | void emu_32x_startup(void) | |
486 | { | |
2446536b | 487 | } |
488 | ||
2446536b | 489 | void lprintf(const char *fmt, ...) |
490 | { | |
c681e48d | 491 | char buffer[256]; |
492 | va_list ap; | |
493 | va_start(ap, fmt); | |
494 | vsprintf(buffer, fmt, ap); | |
f5d4045b | 495 | /* TODO - add 'level' param for warning/error messages? */ |
496 | if (log_cb) | |
bd7b09f4 | 497 | log_cb(RETRO_LOG_INFO, "%s", buffer); |
0c732676 | 498 | va_end(ap); |
2446536b | 499 | } |
500 | ||
2446536b | 501 | /* libretro */ |
502 | void retro_set_environment(retro_environment_t cb) | |
503 | { | |
eac0e638 | 504 | static const struct retro_variable vars[] = { |
48582bcf D |
505 | { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" }, |
506 | { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" }, | |
507 | { "picodrive_sprlim", "No sprite limit; disabled|enabled" }, | |
508 | { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" }, | |
509 | { "picodrive_region", "Region; Auto|Japan NTSC|Japan PAL|US|Europe" }, | |
0fa9e859 | 510 | { "picodrive_region_fps", "Region FPS; Auto|NTSC|PAL" }, |
e1360c66 | 511 | { "picodrive_aspect", "Core-provided aspect ratio; PAR|4/3|CRT" }, |
0185b677 | 512 | #ifdef DRC_SH2 |
eac0e638 | 513 | { "picodrive_drc", "Dynamic recompilers; enabled|disabled" }, |
0185b677 | 514 | #endif |
eac0e638 | 515 | { NULL, NULL }, |
516 | }; | |
2446536b | 517 | |
eac0e638 | 518 | environ_cb = cb; |
2446536b | 519 | |
eac0e638 | 520 | cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars); |
2446536b | 521 | } |
522 | ||
523 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } | |
524 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } | |
525 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } | |
526 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } | |
527 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } | |
528 | ||
529 | unsigned retro_api_version(void) | |
530 | { | |
eac0e638 | 531 | return RETRO_API_VERSION; |
2446536b | 532 | } |
533 | ||
534 | void retro_set_controller_port_device(unsigned port, unsigned device) | |
535 | { | |
536 | } | |
537 | ||
538 | void retro_get_system_info(struct retro_system_info *info) | |
539 | { | |
eac0e638 | 540 | memset(info, 0, sizeof(*info)); |
541 | info->library_name = "PicoDrive"; | |
542 | info->library_version = VERSION; | |
543 | info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms"; | |
544 | info->need_fullpath = true; | |
2446536b | 545 | } |
546 | ||
547 | void retro_get_system_av_info(struct retro_system_av_info *info) | |
548 | { | |
eac0e638 | 549 | memset(info, 0, sizeof(*info)); |
550 | info->timing.fps = Pico.m.pal ? 50 : 60; | |
551 | info->timing.sample_rate = 44100; | |
e1360c66 | 552 | info->geometry.base_width = vout_width; |
eac0e638 | 553 | info->geometry.base_height = vout_height; |
e1360c66 D |
554 | info->geometry.max_width = vout_width; |
555 | info->geometry.max_height = vout_height; | |
556 | ||
557 | float common_width = vout_width; | |
558 | if (user_vout_width != 0) | |
559 | common_width = user_vout_width; | |
560 | ||
561 | info->geometry.aspect_ratio = common_width / vout_height; | |
2446536b | 562 | } |
563 | ||
86b38dc4 | 564 | /* savestates */ |
565 | struct savestate_state { | |
eac0e638 | 566 | const char *load_buf; |
567 | char *save_buf; | |
568 | size_t size; | |
569 | size_t pos; | |
86b38dc4 | 570 | }; |
571 | ||
572 | size_t state_read(void *p, size_t size, size_t nmemb, void *file) | |
573 | { | |
eac0e638 | 574 | struct savestate_state *state = file; |
575 | size_t bsize = size * nmemb; | |
86b38dc4 | 576 | |
eac0e638 | 577 | if (state->pos + bsize > state->size) { |
f5d4045b | 578 | if (log_cb) |
579 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
580 | state->pos + bsize, state->size); | |
eac0e638 | 581 | bsize = state->size - state->pos; |
582 | if ((int)bsize <= 0) | |
583 | return 0; | |
584 | } | |
585 | ||
586 | memcpy(p, state->load_buf + state->pos, bsize); | |
587 | state->pos += bsize; | |
588 | return bsize; | |
86b38dc4 | 589 | } |
590 | ||
591 | size_t state_write(void *p, size_t size, size_t nmemb, void *file) | |
592 | { | |
eac0e638 | 593 | struct savestate_state *state = file; |
594 | size_t bsize = size * nmemb; | |
86b38dc4 | 595 | |
eac0e638 | 596 | if (state->pos + bsize > state->size) { |
f5d4045b | 597 | if (log_cb) |
598 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
599 | state->pos + bsize, state->size); | |
eac0e638 | 600 | bsize = state->size - state->pos; |
601 | if ((int)bsize <= 0) | |
602 | return 0; | |
603 | } | |
604 | ||
605 | memcpy(state->save_buf + state->pos, p, bsize); | |
606 | state->pos += bsize; | |
607 | return bsize; | |
86b38dc4 | 608 | } |
609 | ||
610 | size_t state_skip(void *p, size_t size, size_t nmemb, void *file) | |
611 | { | |
eac0e638 | 612 | struct savestate_state *state = file; |
613 | size_t bsize = size * nmemb; | |
86b38dc4 | 614 | |
eac0e638 | 615 | state->pos += bsize; |
616 | return bsize; | |
86b38dc4 | 617 | } |
618 | ||
619 | size_t state_eof(void *file) | |
620 | { | |
eac0e638 | 621 | struct savestate_state *state = file; |
86b38dc4 | 622 | |
eac0e638 | 623 | return state->pos >= state->size; |
86b38dc4 | 624 | } |
625 | ||
626 | int state_fseek(void *file, long offset, int whence) | |
627 | { | |
eac0e638 | 628 | struct savestate_state *state = file; |
629 | ||
630 | switch (whence) { | |
631 | case SEEK_SET: | |
632 | state->pos = offset; | |
633 | break; | |
634 | case SEEK_CUR: | |
635 | state->pos += offset; | |
636 | break; | |
637 | case SEEK_END: | |
638 | state->pos = state->size + offset; | |
639 | break; | |
640 | } | |
641 | return (int)state->pos; | |
86b38dc4 | 642 | } |
643 | ||
644 | /* savestate sizes vary wildly depending if cd/32x or | |
645 | * carthw is active, so run the whole thing to get size */ | |
eac0e638 | 646 | size_t retro_serialize_size(void) |
647 | { | |
648 | struct savestate_state state = { 0, }; | |
649 | int ret; | |
86b38dc4 | 650 | |
eac0e638 | 651 | ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek); |
652 | if (ret != 0) | |
653 | return 0; | |
86b38dc4 | 654 | |
eac0e638 | 655 | return state.pos; |
2446536b | 656 | } |
657 | ||
658 | bool retro_serialize(void *data, size_t size) | |
eac0e638 | 659 | { |
660 | struct savestate_state state = { 0, }; | |
661 | int ret; | |
86b38dc4 | 662 | |
eac0e638 | 663 | state.save_buf = data; |
664 | state.size = size; | |
665 | state.pos = 0; | |
86b38dc4 | 666 | |
eac0e638 | 667 | ret = PicoStateFP(&state, 1, NULL, state_write, |
668 | NULL, state_fseek); | |
669 | return ret == 0; | |
2446536b | 670 | } |
671 | ||
672 | bool retro_unserialize(const void *data, size_t size) | |
673 | { | |
eac0e638 | 674 | struct savestate_state state = { 0, }; |
675 | int ret; | |
86b38dc4 | 676 | |
eac0e638 | 677 | state.load_buf = data; |
678 | state.size = size; | |
679 | state.pos = 0; | |
86b38dc4 | 680 | |
eac0e638 | 681 | ret = PicoStateFP(&state, 0, state_read, NULL, |
682 | state_eof, state_fseek); | |
683 | return ret == 0; | |
2446536b | 684 | } |
685 | ||
686 | /* cheats - TODO */ | |
687 | void retro_cheat_reset(void) | |
688 | { | |
689 | } | |
690 | ||
691 | void retro_cheat_set(unsigned index, bool enabled, const char *code) | |
692 | { | |
693 | } | |
694 | ||
695 | /* multidisk support */ | |
696 | static bool disk_ejected; | |
697 | static unsigned int disk_current_index; | |
698 | static unsigned int disk_count; | |
699 | static struct disks_state { | |
eac0e638 | 700 | char *fname; |
2446536b | 701 | } disks[8]; |
702 | ||
703 | static bool disk_set_eject_state(bool ejected) | |
704 | { | |
eac0e638 | 705 | // TODO? |
706 | disk_ejected = ejected; | |
707 | return true; | |
2446536b | 708 | } |
709 | ||
710 | static bool disk_get_eject_state(void) | |
711 | { | |
eac0e638 | 712 | return disk_ejected; |
2446536b | 713 | } |
714 | ||
715 | static unsigned int disk_get_image_index(void) | |
716 | { | |
eac0e638 | 717 | return disk_current_index; |
2446536b | 718 | } |
719 | ||
720 | static bool disk_set_image_index(unsigned int index) | |
721 | { | |
eac0e638 | 722 | enum cd_img_type cd_type; |
723 | int ret; | |
2446536b | 724 | |
eac0e638 | 725 | if (index >= sizeof(disks) / sizeof(disks[0])) |
726 | return false; | |
2446536b | 727 | |
eac0e638 | 728 | if (disks[index].fname == NULL) { |
f5d4045b | 729 | if (log_cb) |
730 | log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index); | |
2446536b | 731 | |
eac0e638 | 732 | // RetroArch specifies "no disk" with index == count, |
733 | // so don't fail here.. | |
734 | disk_current_index = index; | |
735 | return true; | |
736 | } | |
2446536b | 737 | |
f5d4045b | 738 | if (log_cb) |
739 | log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index, | |
740 | disks[index].fname); | |
2446536b | 741 | |
eac0e638 | 742 | ret = -1; |
743 | cd_type = PicoCdCheck(disks[index].fname, NULL); | |
744 | if (cd_type != CIT_NOT_CD) | |
745 | ret = cdd_load(disks[index].fname, cd_type); | |
746 | if (ret != 0) { | |
f5d4045b | 747 | if (log_cb) |
748 | log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n"); | |
eac0e638 | 749 | return 0; |
750 | } | |
2446536b | 751 | |
eac0e638 | 752 | disk_current_index = index; |
753 | return true; | |
2446536b | 754 | } |
755 | ||
756 | static unsigned int disk_get_num_images(void) | |
757 | { | |
eac0e638 | 758 | return disk_count; |
2446536b | 759 | } |
760 | ||
761 | static bool disk_replace_image_index(unsigned index, | |
eac0e638 | 762 | const struct retro_game_info *info) |
2446536b | 763 | { |
eac0e638 | 764 | bool ret = true; |
2446536b | 765 | |
eac0e638 | 766 | if (index >= sizeof(disks) / sizeof(disks[0])) |
767 | return false; | |
2446536b | 768 | |
eac0e638 | 769 | if (disks[index].fname != NULL) |
770 | free(disks[index].fname); | |
771 | disks[index].fname = NULL; | |
2446536b | 772 | |
eac0e638 | 773 | if (info != NULL) { |
774 | disks[index].fname = strdup(info->path); | |
775 | if (index == disk_current_index) | |
776 | ret = disk_set_image_index(index); | |
777 | } | |
2446536b | 778 | |
eac0e638 | 779 | return ret; |
2446536b | 780 | } |
781 | ||
782 | static bool disk_add_image_index(void) | |
783 | { | |
eac0e638 | 784 | if (disk_count >= sizeof(disks) / sizeof(disks[0])) |
785 | return false; | |
2446536b | 786 | |
eac0e638 | 787 | disk_count++; |
788 | return true; | |
2446536b | 789 | } |
790 | ||
791 | static struct retro_disk_control_callback disk_control = { | |
eac0e638 | 792 | disk_set_eject_state, |
793 | disk_get_eject_state, | |
794 | disk_get_image_index, | |
795 | disk_set_image_index, | |
796 | disk_get_num_images, | |
797 | disk_replace_image_index, | |
798 | disk_add_image_index, | |
2446536b | 799 | }; |
800 | ||
801 | static void disk_tray_open(void) | |
802 | { | |
f5d4045b | 803 | if (log_cb) |
804 | log_cb(RETRO_LOG_INFO, "cd tray open\n"); | |
eac0e638 | 805 | disk_ejected = 1; |
2446536b | 806 | } |
807 | ||
808 | static void disk_tray_close(void) | |
809 | { | |
f5d4045b | 810 | if (log_cb) |
811 | log_cb(RETRO_LOG_INFO, "cd tray close\n"); | |
eac0e638 | 812 | disk_ejected = 0; |
2446536b | 813 | } |
814 | ||
815 | ||
816 | static const char * const biosfiles_us[] = { | |
eac0e638 | 817 | "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U" |
2446536b | 818 | }; |
819 | static const char * const biosfiles_eu[] = { | |
eac0e638 | 820 | "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E" |
2446536b | 821 | }; |
822 | static const char * const biosfiles_jp[] = { | |
eac0e638 | 823 | "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J" |
2446536b | 824 | }; |
825 | ||
826 | static void make_system_path(char *buf, size_t buf_size, | |
eac0e638 | 827 | const char *name, const char *ext) |
2446536b | 828 | { |
eac0e638 | 829 | const char *dir = NULL; |
830 | ||
831 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) { | |
832 | snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext); | |
833 | } | |
834 | else { | |
835 | snprintf(buf, buf_size, "%s%s", name, ext); | |
836 | } | |
2446536b | 837 | } |
838 | ||
839 | static const char *find_bios(int *region, const char *cd_fname) | |
840 | { | |
eac0e638 | 841 | const char * const *files; |
842 | static char path[256]; | |
843 | int i, count; | |
844 | FILE *f = NULL; | |
845 | ||
846 | if (*region == 4) { // US | |
847 | files = biosfiles_us; | |
848 | count = sizeof(biosfiles_us) / sizeof(char *); | |
849 | } else if (*region == 8) { // EU | |
850 | files = biosfiles_eu; | |
851 | count = sizeof(biosfiles_eu) / sizeof(char *); | |
852 | } else if (*region == 1 || *region == 2) { | |
853 | files = biosfiles_jp; | |
854 | count = sizeof(biosfiles_jp) / sizeof(char *); | |
855 | } else { | |
856 | return NULL; | |
857 | } | |
858 | ||
859 | for (i = 0; i < count; i++) | |
860 | { | |
861 | make_system_path(path, sizeof(path), files[i], ".bin"); | |
862 | f = fopen(path, "rb"); | |
863 | if (f != NULL) | |
864 | break; | |
865 | ||
866 | make_system_path(path, sizeof(path), files[i], ".zip"); | |
867 | f = fopen(path, "rb"); | |
868 | if (f != NULL) | |
869 | break; | |
870 | } | |
871 | ||
872 | if (f != NULL) { | |
f5d4045b | 873 | if (log_cb) |
874 | log_cb(RETRO_LOG_INFO, "using bios: %s\n", path); | |
eac0e638 | 875 | fclose(f); |
876 | return path; | |
877 | } | |
2446536b | 878 | |
eac0e638 | 879 | return NULL; |
2446536b | 880 | } |
881 | ||
6d0aaeaf | 882 | static void sram_reset() |
883 | { | |
884 | SRam.data = NULL; | |
885 | SRam.start = 0; | |
886 | SRam.end = 0; | |
887 | SRam.flags = '\0'; | |
888 | SRam.unused2 = '\0'; | |
889 | SRam.changed = '\0' ; | |
890 | SRam.eeprom_type = '\0'; | |
891 | SRam.unused3 = '\0'; | |
892 | SRam.eeprom_bit_cl = '\0'; | |
893 | SRam.eeprom_bit_in = '\0'; | |
894 | SRam.eeprom_bit_out = '\0'; | |
895 | SRam.size = 0; | |
896 | } | |
897 | ||
2446536b | 898 | bool retro_load_game(const struct retro_game_info *info) |
899 | { | |
eac0e638 | 900 | enum media_type_e media_type; |
901 | static char carthw_path[256]; | |
902 | size_t i; | |
2446536b | 903 | |
a1f2e1b1 | 904 | struct retro_input_descriptor desc[] = { |
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" }, | |
909 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
910 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
911 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
912 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
913 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
914 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
17d4733d D |
915 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, |
916 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
a1f2e1b1 | 917 | |
918 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
919 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
920 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
921 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
922 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
923 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
924 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
925 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
926 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
927 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
17d4733d D |
928 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, |
929 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
a1f2e1b1 | 930 | |
931 | { 0 }, | |
932 | }; | |
933 | ||
17d4733d D |
934 | struct retro_input_descriptor desc_sms[] = { |
935 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
936 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
937 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
938 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
0fa9e859 D |
939 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, |
940 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, | |
941 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, | |
17d4733d D |
942 | |
943 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
944 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
945 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
946 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
0fa9e859 D |
947 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, |
948 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, | |
949 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, | |
17d4733d D |
950 | |
951 | { 0 }, | |
952 | }; | |
a1f2e1b1 | 953 | |
6d0aaeaf | 954 | sram_reset(); |
955 | ||
eac0e638 | 956 | enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; |
957 | if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { | |
f5d4045b | 958 | if (log_cb) |
959 | log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n"); | |
eac0e638 | 960 | return false; |
961 | } | |
2446536b | 962 | |
eac0e638 | 963 | if (info == NULL || info->path == NULL) { |
f5d4045b | 964 | if (log_cb) |
965 | log_cb(RETRO_LOG_ERROR, "info->path required\n"); | |
eac0e638 | 966 | return false; |
967 | } | |
2446536b | 968 | |
eac0e638 | 969 | for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) { |
970 | if (disks[i].fname != NULL) { | |
971 | free(disks[i].fname); | |
972 | disks[i].fname = NULL; | |
973 | } | |
974 | } | |
2446536b | 975 | |
eac0e638 | 976 | disk_current_index = 0; |
977 | disk_count = 1; | |
978 | disks[0].fname = strdup(info->path); | |
2446536b | 979 | |
eac0e638 | 980 | make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg"); |
2446536b | 981 | |
eac0e638 | 982 | media_type = PicoLoadMedia(info->path, carthw_path, |
983 | find_bios, NULL); | |
2446536b | 984 | |
eac0e638 | 985 | switch (media_type) { |
986 | case PM_BAD_DETECT: | |
f5d4045b | 987 | if (log_cb) |
988 | log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n"); | |
eac0e638 | 989 | return false; |
990 | case PM_BAD_CD: | |
f5d4045b | 991 | if (log_cb) |
992 | log_cb(RETRO_LOG_ERROR, "Invalid CD image\n"); | |
eac0e638 | 993 | return false; |
994 | case PM_BAD_CD_NO_BIOS: | |
f5d4045b | 995 | if (log_cb) |
996 | log_cb(RETRO_LOG_ERROR, "Missing BIOS\n"); | |
eac0e638 | 997 | return false; |
998 | case PM_ERROR: | |
f5d4045b | 999 | if (log_cb) |
1000 | log_cb(RETRO_LOG_ERROR, "Load error\n"); | |
eac0e638 | 1001 | return false; |
1002 | default: | |
1003 | break; | |
1004 | } | |
2446536b | 1005 | |
17d4733d D |
1006 | if (media_type == PM_MARK3) |
1007 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc_sms); | |
1008 | else | |
1009 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); | |
1010 | ||
eac0e638 | 1011 | PicoLoopPrepare(); |
2446536b | 1012 | |
eac0e638 | 1013 | PicoWriteSound = snd_write; |
1014 | memset(sndBuffer, 0, sizeof(sndBuffer)); | |
1015 | PsndOut = sndBuffer; | |
1016 | PsndRerate(0); | |
2446536b | 1017 | |
eac0e638 | 1018 | return true; |
2446536b | 1019 | } |
1020 | ||
1021 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) | |
1022 | { | |
eac0e638 | 1023 | return false; |
2446536b | 1024 | } |
1025 | ||
eac0e638 | 1026 | void retro_unload_game(void) |
2446536b | 1027 | { |
1028 | } | |
1029 | ||
1030 | unsigned retro_get_region(void) | |
1031 | { | |
eac0e638 | 1032 | return Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; |
2446536b | 1033 | } |
1034 | ||
c3e69f81 | 1035 | void *retro_get_memory_data(unsigned type) |
2446536b | 1036 | { |
c3e69f81 | 1037 | uint8_t* data; |
2446536b | 1038 | |
c3e69f81 DS |
1039 | switch(type) |
1040 | { | |
1041 | case RETRO_MEMORY_SAVE_RAM: | |
1042 | if (PicoAHW & PAHW_MCD) | |
1043 | data = Pico_mcd->bram; | |
1044 | else | |
1045 | data = SRam.data; | |
1046 | break; | |
1047 | case RETRO_MEMORY_SYSTEM_RAM: | |
1048 | if (PicoAHW & PAHW_SMS) | |
1049 | data = Pico.vramb; | |
1050 | else | |
1051 | data = Pico.ram; | |
1052 | break; | |
1053 | default: | |
1054 | data = NULL; | |
1055 | break; | |
1056 | } | |
1057 | ||
1058 | return data; | |
2446536b | 1059 | } |
1060 | ||
c3e69f81 | 1061 | size_t retro_get_memory_size(unsigned type) |
2446536b | 1062 | { |
eac0e638 | 1063 | unsigned int i; |
1064 | int sum; | |
c3e69f81 DS |
1065 | |
1066 | switch(type) | |
1067 | { | |
1068 | case RETRO_MEMORY_SAVE_RAM: | |
1069 | if (PicoAHW & PAHW_MCD) | |
1070 | // bram | |
1071 | return 0x2000; | |
1072 | ||
1073 | if (Pico.m.frame_count == 0) | |
1074 | return SRam.size; | |
1075 | ||
1076 | // if game doesn't write to sram, don't report it to | |
1077 | // libretro so that RA doesn't write out zeroed .srm | |
1078 | for (i = 0, sum = 0; i < SRam.size; i++) | |
1079 | sum |= SRam.data[i]; | |
1080 | ||
1081 | return (sum != 0) ? SRam.size : 0; | |
1082 | ||
1083 | case RETRO_MEMORY_SYSTEM_RAM: | |
1084 | if (PicoAHW & PAHW_SMS) | |
1085 | return sizeof(Pico.vramb); | |
1086 | else | |
1087 | return sizeof(Pico.ram); | |
1088 | ||
1089 | default: | |
1090 | return 0; | |
1091 | } | |
1092 | ||
2446536b | 1093 | } |
1094 | ||
1095 | void retro_reset(void) | |
1096 | { | |
eac0e638 | 1097 | PicoReset(); |
2446536b | 1098 | } |
1099 | ||
1100 | static const unsigned short retro_pico_map[] = { | |
eac0e638 | 1101 | 1 << GBTN_B, |
1102 | 1 << GBTN_A, | |
1103 | 1 << GBTN_MODE, | |
1104 | 1 << GBTN_START, | |
1105 | 1 << GBTN_UP, | |
1106 | 1 << GBTN_DOWN, | |
1107 | 1 << GBTN_LEFT, | |
1108 | 1 << GBTN_RIGHT, | |
1109 | 1 << GBTN_C, | |
1110 | 1 << GBTN_Y, | |
1111 | 1 << GBTN_X, | |
1112 | 1 << GBTN_Z, | |
2446536b | 1113 | }; |
1114 | #define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0])) | |
1115 | ||
1116 | static void snd_write(int len) | |
1117 | { | |
eac0e638 | 1118 | audio_batch_cb(PsndOut, len / 4); |
2446536b | 1119 | } |
1120 | ||
531a8f38 | 1121 | static enum input_device input_name_to_val(const char *name) |
1122 | { | |
eac0e638 | 1123 | if (strcmp(name, "3 button pad") == 0) |
1124 | return PICO_INPUT_PAD_3BTN; | |
1125 | if (strcmp(name, "6 button pad") == 0) | |
1126 | return PICO_INPUT_PAD_6BTN; | |
1127 | if (strcmp(name, "None") == 0) | |
1128 | return PICO_INPUT_NOTHING; | |
531a8f38 | 1129 | |
f5d4045b | 1130 | if (log_cb) |
1131 | log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name); | |
eac0e638 | 1132 | return PICO_INPUT_PAD_3BTN; |
531a8f38 | 1133 | } |
1134 | ||
1135 | static void update_variables(void) | |
1136 | { | |
eac0e638 | 1137 | struct retro_variable var; |
1138 | ||
1139 | var.value = NULL; | |
1140 | var.key = "picodrive_input1"; | |
1141 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1142 | PicoSetInputDevice(0, input_name_to_val(var.value)); | |
1143 | ||
1144 | var.value = NULL; | |
1145 | var.key = "picodrive_input2"; | |
1146 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1147 | PicoSetInputDevice(1, input_name_to_val(var.value)); | |
1148 | ||
1149 | var.value = NULL; | |
1150 | var.key = "picodrive_sprlim"; | |
1151 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1152 | if (strcmp(var.value, "enabled") == 0) | |
1153 | PicoOpt |= POPT_DIS_SPRITE_LIM; | |
1154 | else | |
1155 | PicoOpt &= ~POPT_DIS_SPRITE_LIM; | |
1156 | } | |
1157 | ||
1158 | var.value = NULL; | |
1159 | var.key = "picodrive_ramcart"; | |
1160 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1161 | if (strcmp(var.value, "enabled") == 0) | |
1162 | PicoOpt |= POPT_EN_MCD_RAMCART; | |
1163 | else | |
1164 | PicoOpt &= ~POPT_EN_MCD_RAMCART; | |
1165 | } | |
1166 | ||
48582bcf | 1167 | int OldPicoRegionOverride = PicoRegionOverride; |
eac0e638 | 1168 | var.value = NULL; |
1169 | var.key = "picodrive_region"; | |
1170 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1171 | if (strcmp(var.value, "Auto") == 0) | |
1172 | PicoRegionOverride = 0; | |
1173 | else if (strcmp(var.value, "Japan NTSC") == 0) | |
1174 | PicoRegionOverride = 1; | |
1175 | else if (strcmp(var.value, "Japan PAL") == 0) | |
1176 | PicoRegionOverride = 2; | |
1177 | else if (strcmp(var.value, "US") == 0) | |
1178 | PicoRegionOverride = 4; | |
1179 | else if (strcmp(var.value, "Europe") == 0) | |
1180 | PicoRegionOverride = 8; | |
1181 | } | |
b38bccea | 1182 | |
48582bcf D |
1183 | int OldPicoRegionFPSOverride = PicoRegionFPSOverride; |
1184 | var.value = NULL; | |
1185 | var.key = "picodrive_region_fps"; | |
1186 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1187 | if (strcmp(var.value, "Auto") == 0) | |
1188 | PicoRegionFPSOverride = 0; | |
1189 | else if (strcmp(var.value, "NTSC") == 0) | |
1190 | PicoRegionFPSOverride = 1; | |
1191 | else if (strcmp(var.value, "PAL") == 0) | |
1192 | PicoRegionFPSOverride = 2; | |
1193 | } | |
17d4733d | 1194 | |
48582bcf D |
1195 | // Update region, fps and sound flags if needed |
1196 | if (PicoRegionOverride != OldPicoRegionOverride || | |
1197 | PicoRegionFPSOverride != OldPicoRegionFPSOverride) | |
1198 | { | |
1199 | PicoDetectRegion(); | |
1200 | PicoLoopPrepare(); | |
1201 | PsndRerate(1); | |
1202 | } | |
17d4733d | 1203 | |
e1360c66 D |
1204 | float old_user_vout_width = user_vout_width; |
1205 | var.value = NULL; | |
1206 | var.key = "picodrive_aspect"; | |
1207 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1208 | if (strcmp(var.value, "4/3") == 0) | |
1209 | user_vout_width = VOUT_4_3; | |
1210 | else if (strcmp(var.value, "CRT") == 0) | |
1211 | user_vout_width = VOUT_CRT; | |
1212 | else | |
1213 | user_vout_width = VOUT_PAR; | |
1214 | } | |
1215 | ||
1216 | if (user_vout_width != old_user_vout_width) | |
1217 | { | |
1218 | // Update the geometry | |
1219 | struct retro_system_av_info av_info; | |
1220 | retro_get_system_av_info(&av_info); | |
1221 | environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); | |
1222 | } | |
1223 | ||
0185b677 | 1224 | #ifdef DRC_SH2 |
eac0e638 | 1225 | var.value = NULL; |
1226 | var.key = "picodrive_drc"; | |
1227 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1228 | if (strcmp(var.value, "enabled") == 0) | |
1229 | PicoOpt |= POPT_EN_DRC; | |
1230 | else | |
1231 | PicoOpt &= ~POPT_EN_DRC; | |
1232 | } | |
0185b677 | 1233 | #endif |
0c732676 | 1234 | #ifdef _3DS |
1235 | if(!ctr_svchack_successful) | |
1236 | PicoOpt &= ~POPT_EN_DRC; | |
1237 | #endif | |
531a8f38 | 1238 | } |
1239 | ||
eac0e638 | 1240 | void retro_run(void) |
2446536b | 1241 | { |
eac0e638 | 1242 | bool updated = false; |
1243 | int pad, i; | |
2446536b | 1244 | |
eac0e638 | 1245 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) |
1246 | update_variables(); | |
2446536b | 1247 | |
0c732676 | 1248 | input_poll_cb(); |
2446536b | 1249 | |
eac0e638 | 1250 | PicoPad[0] = PicoPad[1] = 0; |
1251 | for (pad = 0; pad < 2; pad++) | |
1252 | for (i = 0; i < RETRO_PICO_MAP_LEN; i++) | |
1253 | if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i)) | |
1254 | PicoPad[pad] |= retro_pico_map[i]; | |
2446536b | 1255 | |
eac0e638 | 1256 | PicoFrame(); |
2446536b | 1257 | |
eac0e638 | 1258 | video_cb((short *)vout_buf + vout_offset, |
1259 | vout_width, vout_height, vout_width * 2); | |
2446536b | 1260 | } |
1261 | ||
2f832b7f | 1262 | static void check_system_specs(void) |
1263 | { | |
1264 | /* TODO - set different performance level for 32X - 6 for ARM dynarec, higher for interpreter core */ | |
1265 | unsigned level = 5; | |
1266 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
1267 | } | |
1268 | ||
2446536b | 1269 | void retro_init(void) |
1270 | { | |
f5d4045b | 1271 | struct retro_log_callback log; |
eac0e638 | 1272 | int level; |
2446536b | 1273 | |
eac0e638 | 1274 | level = 0; |
1275 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
2446536b | 1276 | |
c681e48d | 1277 | if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) |
f5d4045b | 1278 | log_cb = log.log; |
c681e48d | 1279 | else |
1280 | log_cb = NULL; | |
f5d4045b | 1281 | |
eac0e638 | 1282 | environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); |
2446536b | 1283 | |
0c732676 | 1284 | #ifdef _3DS |
1285 | ctr_svchack_successful = ctr_svchack_init(); | |
88f7643f | 1286 | #elif defined(VITA) |
1287 | sceBlock = getVMBlock(); | |
0c732676 | 1288 | #endif |
1289 | ||
eac0e638 | 1290 | PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
1291 | | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX | |
1292 | | POPT_EN_32X|POPT_EN_PWM | |
1293 | | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER; | |
720bfc5d | 1294 | #ifdef __arm__ |
0c732676 | 1295 | #ifdef _3DS |
1296 | if (ctr_svchack_successful) | |
1297 | #endif | |
1298 | PicoOpt |= POPT_EN_DRC; | |
720bfc5d | 1299 | #endif |
eac0e638 | 1300 | PsndRate = 44100; |
1301 | PicoAutoRgnOrder = 0x184; // US, EU, JP | |
2446536b | 1302 | |
eac0e638 | 1303 | vout_width = 320; |
0c732676 | 1304 | vout_height = 240; |
ad2ccfbc | 1305 | #ifdef _3DS |
1306 | vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80); | |
1307 | #else | |
0c732676 | 1308 | vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); |
ad2ccfbc | 1309 | #endif |
2446536b | 1310 | |
0c732676 | 1311 | PicoInit(); |
1312 | PicoDrawSetOutFormat(PDF_RGB555, 0); | |
1313 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
2446536b | 1314 | |
eac0e638 | 1315 | //PicoMessage = plat_status_msg_busy_next; |
1316 | PicoMCDopenTray = disk_tray_open; | |
1317 | PicoMCDcloseTray = disk_tray_close; | |
531a8f38 | 1318 | |
0c732676 | 1319 | update_variables(); |
2446536b | 1320 | } |
1321 | ||
1322 | void retro_deinit(void) | |
1323 | { | |
ad2ccfbc | 1324 | #ifdef _3DS |
1325 | linearFree(vout_buf); | |
1326 | #else | |
1327 | free(vout_buf); | |
1328 | #endif | |
1329 | vout_buf = NULL; | |
eac0e638 | 1330 | PicoExit(); |
2446536b | 1331 | } |