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> |
20563b60 | 56 | #include <pico/patch.h> |
5345c2b9 T |
57 | #include "../common/input_pico.h" |
58 | #include "../common/version.h" | |
2446536b | 59 | #include "libretro.h" |
60 | ||
f5d4045b | 61 | static retro_log_printf_t log_cb; |
2446536b | 62 | static retro_video_refresh_t video_cb; |
63 | static retro_input_poll_t input_poll_cb; | |
64 | static retro_input_state_t input_state_cb; | |
65 | static retro_environment_t environ_cb; | |
66 | static retro_audio_sample_batch_t audio_batch_cb; | |
67 | ||
2446536b | 68 | #define VOUT_MAX_WIDTH 320 |
69 | #define VOUT_MAX_HEIGHT 240 | |
e1360c66 D |
70 | |
71 | static const float VOUT_PAR = 0.0; | |
72 | static const float VOUT_4_3 = (224.0f * (4.0f / 3.0f)); | |
73 | static const float VOUT_CRT = (224.0f * 1.29911f); | |
74 | ||
f0a3d0dc | 75 | bool show_overscan = false; |
76 | ||
2446536b | 77 | static void *vout_buf; |
51c08950 | 78 | static int vout_width, vout_height, vout_offset; |
e1360c66 | 79 | static float user_vout_width = 0.0; |
2446536b | 80 | |
ed06ffd3 T |
81 | #ifdef _MSC_VER |
82 | static short sndBuffer[2*44100/50]; | |
83 | #else | |
2446536b | 84 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50]; |
ed06ffd3 | 85 | #endif |
2446536b | 86 | |
2446536b | 87 | static void snd_write(int len); |
88 | ||
89 | #ifdef _WIN32 | |
90 | #define SLASH '\\' | |
91 | #else | |
92 | #define SLASH '/' | |
93 | #endif | |
94 | ||
95 | /* functions called by the core */ | |
96 | ||
97 | void cache_flush_d_inval_i(void *start, void *end) | |
98 | { | |
99 | #ifdef __arm__ | |
88f7643f | 100 | size_t len = (char *)end - (char *)start; |
2446536b | 101 | #if defined(__BLACKBERRY_QNX__) |
eac0e638 | 102 | msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
2446536b | 103 | #elif defined(__MACH__) |
eac0e638 | 104 | sys_dcache_flush(start, len); |
105 | sys_icache_invalidate(start, len); | |
0c732676 | 106 | #elif defined(_3DS) |
107 | ctr_flush_invalidate_cache(); | |
88f7643f | 108 | #elif defined(VITA) |
109 | sceKernelSyncVMDomain(sceBlock, start, len); | |
2446536b | 110 | #else |
0c732676 | 111 | __clear_cache(start, end); |
2446536b | 112 | #endif |
113 | #endif | |
114 | } | |
115 | ||
e8b61936 | 116 | #ifdef _WIN32 |
6f1133bc T |
117 | /* mmap() replacement for Windows |
118 | * | |
119 | * Author: Mike Frysinger <vapier@gentoo.org> | |
120 | * Placed into the public domain | |
121 | */ | |
122 | ||
123 | /* References: | |
124 | * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx | |
125 | * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx | |
126 | * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx | |
127 | * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx | |
128 | */ | |
129 | ||
130 | #define PROT_READ 0x1 | |
131 | #define PROT_WRITE 0x2 | |
132 | /* This flag is only available in WinXP+ */ | |
133 | #ifdef FILE_MAP_EXECUTE | |
134 | #define PROT_EXEC 0x4 | |
135 | #else | |
136 | #define PROT_EXEC 0x0 | |
137 | #define FILE_MAP_EXECUTE 0 | |
138 | #endif | |
139 | ||
140 | #define MAP_SHARED 0x01 | |
141 | #define MAP_PRIVATE 0x02 | |
142 | #define MAP_ANONYMOUS 0x20 | |
143 | #define MAP_ANON MAP_ANONYMOUS | |
144 | #define MAP_FAILED ((void *) -1) | |
145 | ||
146 | #ifdef __USE_FILE_OFFSET64 | |
147 | # define DWORD_HI(x) (x >> 32) | |
148 | # define DWORD_LO(x) ((x) & 0xffffffff) | |
149 | #else | |
150 | # define DWORD_HI(x) (0) | |
151 | # define DWORD_LO(x) (x) | |
152 | #endif | |
153 | ||
154 | static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | |
2446536b | 155 | { |
eac0e638 | 156 | uint32_t flProtect, dwDesiredAccess; |
157 | off_t end; | |
158 | HANDLE mmap_fd, h; | |
159 | void *ret; | |
160 | ||
161 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) | |
162 | return MAP_FAILED; | |
163 | if (fd == -1) { | |
164 | if (!(flags & MAP_ANON) || offset) | |
165 | return MAP_FAILED; | |
166 | } else if (flags & MAP_ANON) | |
167 | return MAP_FAILED; | |
168 | ||
169 | if (prot & PROT_WRITE) { | |
170 | if (prot & PROT_EXEC) | |
171 | flProtect = PAGE_EXECUTE_READWRITE; | |
172 | else | |
173 | flProtect = PAGE_READWRITE; | |
174 | } else if (prot & PROT_EXEC) { | |
175 | if (prot & PROT_READ) | |
176 | flProtect = PAGE_EXECUTE_READ; | |
177 | else if (prot & PROT_EXEC) | |
178 | flProtect = PAGE_EXECUTE; | |
179 | } else | |
180 | flProtect = PAGE_READONLY; | |
181 | ||
182 | end = length + offset; | |
183 | ||
184 | if (fd == -1) | |
185 | mmap_fd = INVALID_HANDLE_VALUE; | |
186 | else | |
187 | mmap_fd = (HANDLE)_get_osfhandle(fd); | |
188 | h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); | |
189 | if (h == NULL) | |
190 | return MAP_FAILED; | |
191 | ||
192 | if (prot & PROT_WRITE) | |
193 | dwDesiredAccess = FILE_MAP_WRITE; | |
194 | else | |
195 | dwDesiredAccess = FILE_MAP_READ; | |
196 | if (prot & PROT_EXEC) | |
197 | dwDesiredAccess |= FILE_MAP_EXECUTE; | |
198 | if (flags & MAP_PRIVATE) | |
199 | dwDesiredAccess |= FILE_MAP_COPY; | |
200 | ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); | |
201 | if (ret == NULL) { | |
202 | CloseHandle(h); | |
203 | ret = MAP_FAILED; | |
204 | } | |
205 | return ret; | |
e8b61936 | 206 | } |
2446536b | 207 | |
6f1133bc | 208 | static void munmap(void *addr, size_t length) |
e8b61936 | 209 | { |
eac0e638 | 210 | UnmapViewOfFile(addr); |
211 | /* ruh-ro, we leaked handle from CreateFileMapping() ... */ | |
e8b61936 | 212 | } |
f18d0e08 | 213 | #elif defined(NO_MMAP) |
5345c2b9 | 214 | #define PROT_EXEC 0x04 |
f18d0e08 | 215 | #define MAP_FAILED 0 |
216 | #define PROT_READ 0 | |
217 | #define PROT_WRITE 0 | |
218 | #define MAP_PRIVATE 0 | |
219 | #define MAP_ANONYMOUS 0 | |
220 | ||
221 | void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off) | |
222 | { | |
223 | return malloc(len); | |
224 | } | |
225 | ||
226 | void munmap(void *base_addr, size_t len) | |
227 | { | |
228 | free(base_addr); | |
229 | } | |
230 | ||
231 | int mprotect(void *addr, size_t len, int prot) | |
232 | { | |
eac0e638 | 233 | /* stub - not really needed at this point since this codepath has no dynarecs */ |
f18d0e08 | 234 | return 0; |
235 | } | |
236 | ||
e8b61936 | 237 | #endif |
8e5639bc | 238 | |
239 | #ifndef MAP_ANONYMOUS | |
240 | #define MAP_ANONYMOUS MAP_ANON | |
241 | #endif | |
242 | ||
0c732676 | 243 | #ifdef _3DS |
244 | typedef struct | |
245 | { | |
246 | unsigned int requested_map; | |
247 | void* buffer; | |
248 | }pico_mmap_t; | |
249 | ||
250 | pico_mmap_t pico_mmaps[] = { | |
251 | {0x02000000, 0}, | |
252 | {0x06000000, 0}, | |
253 | {NULL, 0} | |
254 | }; | |
255 | ||
256 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) | |
257 | { | |
258 | (void)is_fixed; | |
259 | ||
260 | if (ctr_svchack_successful) | |
261 | { | |
262 | pico_mmap_t* pico_mmap; | |
263 | ||
264 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
265 | { | |
266 | if ((pico_mmap->requested_map == addr)) | |
267 | { | |
268 | unsigned int ptr_aligned, tmp; | |
269 | unsigned int currentHandle; | |
270 | unsigned int perm = 0b011; | |
271 | ||
272 | if (need_exec) | |
273 | perm = 0b111; | |
274 | ||
275 | size = (size + 0xFFF) & ~0xFFF; | |
276 | pico_mmap->buffer = malloc(size + 0x1000); | |
277 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
278 | ||
279 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
280 | ||
281 | if(svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, size, MEMOP_MAP, perm) < 0) | |
282 | { | |
283 | if (log_cb) | |
284 | log_cb(RETRO_LOG_ERROR, "could not map memory @0x%08X\n", pico_mmap->requested_map); | |
285 | exit(1); | |
286 | } | |
287 | ||
288 | svcCloseHandle(currentHandle); | |
289 | return (void*)pico_mmap->requested_map; | |
290 | } | |
291 | } | |
292 | } | |
293 | ||
294 | return malloc(size); | |
295 | } | |
296 | ||
297 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
298 | { | |
299 | if (ctr_svchack_successful) | |
300 | { | |
301 | pico_mmap_t* pico_mmap; | |
302 | ||
303 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
304 | { | |
305 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
306 | { | |
307 | unsigned int ptr_aligned; | |
308 | unsigned int currentHandle; | |
309 | void* tmp; | |
310 | ||
311 | oldsize = (oldsize + 0xFFF) & ~0xFFF; | |
312 | newsize = (newsize + 0xFFF) & ~0xFFF; | |
313 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
314 | ||
315 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
316 | ||
317 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, oldsize, MEMOP_UNMAP, 0b011); | |
318 | ||
319 | tmp = realloc(pico_mmap->buffer, newsize + 0x1000); | |
320 | if(!tmp) | |
321 | return NULL; | |
322 | ||
323 | pico_mmap->buffer = tmp; | |
324 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
325 | ||
326 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, newsize, MEMOP_MAP, 0x3); | |
327 | ||
328 | svcCloseHandle(currentHandle); | |
329 | ||
330 | return ptr; | |
331 | } | |
332 | } | |
333 | } | |
334 | ||
335 | return realloc(ptr, newsize); | |
336 | ||
337 | } | |
338 | void plat_munmap(void *ptr, size_t size) | |
339 | { | |
340 | if (ctr_svchack_successful) | |
341 | { | |
342 | pico_mmap_t* pico_mmap; | |
343 | ||
344 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
345 | { | |
346 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
347 | { | |
348 | unsigned int ptr_aligned; | |
349 | unsigned int currentHandle; | |
350 | ||
351 | size = (size + 0xFFF) & ~0xFFF; | |
352 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
353 | ||
354 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
355 | ||
356 | svcControlProcessMemory(currentHandle, (void*)pico_mmap->requested_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0b011); | |
357 | ||
358 | svcCloseHandle(currentHandle); | |
359 | ||
360 | free(pico_mmap->buffer); | |
361 | pico_mmap->buffer = NULL; | |
362 | return; | |
363 | } | |
364 | } | |
365 | } | |
366 | ||
367 | free(ptr); | |
368 | } | |
369 | ||
370 | #else | |
e8b61936 | 371 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) |
372 | { | |
e8b61936 | 373 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; |
374 | void *req, *ret; | |
375 | ||
376 | req = (void *)addr; | |
377 | ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0); | |
378 | if (ret == MAP_FAILED) { | |
f5d4045b | 379 | if (log_cb) |
380 | log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno); | |
e8b61936 | 381 | return NULL; |
382 | } | |
383 | ||
384 | if (addr != 0 && ret != (void *)addr) { | |
f5d4045b | 385 | if (log_cb) |
386 | log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n", | |
387 | addr, ret); | |
e8b61936 | 388 | |
389 | if (is_fixed) { | |
390 | munmap(ret, size); | |
391 | return NULL; | |
392 | } | |
393 | } | |
2446536b | 394 | |
eac0e638 | 395 | return ret; |
2446536b | 396 | } |
397 | ||
398 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
399 | { | |
8c8b7284 | 400 | #ifdef __linux__ |
eac0e638 | 401 | void *ret = mremap(ptr, oldsize, newsize, 0); |
402 | if (ret == MAP_FAILED) | |
403 | return NULL; | |
2446536b | 404 | |
eac0e638 | 405 | return ret; |
8c8b7284 | 406 | #else |
eac0e638 | 407 | void *tmp, *ret; |
408 | size_t preserve_size; | |
409 | ||
410 | preserve_size = oldsize; | |
411 | if (preserve_size > newsize) | |
412 | preserve_size = newsize; | |
413 | tmp = malloc(preserve_size); | |
414 | if (tmp == NULL) | |
415 | return NULL; | |
416 | memcpy(tmp, ptr, preserve_size); | |
417 | ||
418 | munmap(ptr, oldsize); | |
419 | ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE, | |
420 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
421 | if (ret == MAP_FAILED) { | |
422 | free(tmp); | |
423 | return NULL; | |
424 | } | |
425 | memcpy(ret, tmp, preserve_size); | |
426 | free(tmp); | |
427 | return ret; | |
8c8b7284 | 428 | #endif |
2446536b | 429 | } |
430 | ||
431 | void plat_munmap(void *ptr, size_t size) | |
432 | { | |
eac0e638 | 433 | if (ptr != NULL) |
434 | munmap(ptr, size); | |
2446536b | 435 | } |
0c732676 | 436 | #endif |
2446536b | 437 | |
c25d78ee | 438 | int plat_mem_set_exec(void *ptr, size_t size) |
439 | { | |
e8b61936 | 440 | #ifdef _WIN32 |
441 | int ret = VirtualProtect(ptr,size,PAGE_EXECUTE_READWRITE,0); | |
f5d4045b | 442 | if (ret == 0 && log_cb) |
443 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, 0); | |
0c732676 | 444 | #elif defined(_3DS) |
445 | int ret = -1; | |
446 | if (ctr_svchack_successful) | |
447 | { | |
448 | unsigned int currentHandle; | |
449 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
450 | ret = svcControlProcessMemory(currentHandle, ptr, 0x0, | |
451 | size, MEMOP_PROT, 0b111); | |
452 | svcCloseHandle(currentHandle); | |
453 | ctr_flush_invalidate_cache(); | |
454 | ||
455 | } | |
456 | else | |
457 | { | |
458 | if (log_cb) | |
459 | log_cb(RETRO_LOG_ERROR, "plat_mem_set_exec called with no svcControlProcessMemory access\n"); | |
460 | exit(1); | |
461 | } | |
462 | ||
88f7643f | 463 | #elif defined(VITA) |
464 | int ret = sceKernelOpenVMDomain(); | |
e8b61936 | 465 | #else |
466 | int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); | |
f5d4045b | 467 | if (ret != 0 && log_cb) |
468 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno); | |
e8b61936 | 469 | #endif |
eac0e638 | 470 | return ret; |
c25d78ee | 471 | } |
472 | ||
2446536b | 473 | void emu_video_mode_change(int start_line, int line_count, int is_32cols) |
474 | { | |
eac0e638 | 475 | memset(vout_buf, 0, 320 * 240 * 2); |
476 | vout_width = is_32cols ? 256 : 320; | |
477 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
f0a3d0dc | 478 | if (show_overscan == true) line_count += 16; |
479 | if (show_overscan == true) start_line -= 8; | |
51c08950 | 480 | |
eac0e638 | 481 | vout_height = line_count; |
482 | vout_offset = vout_width * start_line; | |
e1360c66 D |
483 | |
484 | // Update the geometry | |
485 | struct retro_system_av_info av_info; | |
486 | retro_get_system_av_info(&av_info); | |
487 | environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); | |
2446536b | 488 | } |
489 | ||
490 | void emu_32x_startup(void) | |
491 | { | |
2446536b | 492 | } |
493 | ||
2446536b | 494 | void lprintf(const char *fmt, ...) |
495 | { | |
c681e48d | 496 | char buffer[256]; |
497 | va_list ap; | |
498 | va_start(ap, fmt); | |
499 | vsprintf(buffer, fmt, ap); | |
f5d4045b | 500 | /* TODO - add 'level' param for warning/error messages? */ |
501 | if (log_cb) | |
bd7b09f4 | 502 | log_cb(RETRO_LOG_INFO, "%s", buffer); |
0c732676 | 503 | va_end(ap); |
2446536b | 504 | } |
505 | ||
2446536b | 506 | /* libretro */ |
507 | void retro_set_environment(retro_environment_t cb) | |
508 | { | |
eac0e638 | 509 | static const struct retro_variable vars[] = { |
48582bcf D |
510 | { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" }, |
511 | { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" }, | |
512 | { "picodrive_sprlim", "No sprite limit; disabled|enabled" }, | |
513 | { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" }, | |
514 | { "picodrive_region", "Region; Auto|Japan NTSC|Japan PAL|US|Europe" }, | |
0fa9e859 | 515 | { "picodrive_region_fps", "Region FPS; Auto|NTSC|PAL" }, |
e1360c66 | 516 | { "picodrive_aspect", "Core-provided aspect ratio; PAR|4/3|CRT" }, |
f0a3d0dc | 517 | { "picodrive_overscan", "Show Overscan; disabled|enabled" }, |
0185b677 | 518 | #ifdef DRC_SH2 |
eac0e638 | 519 | { "picodrive_drc", "Dynamic recompilers; enabled|disabled" }, |
0185b677 | 520 | #endif |
eac0e638 | 521 | { NULL, NULL }, |
522 | }; | |
2446536b | 523 | |
eac0e638 | 524 | environ_cb = cb; |
2446536b | 525 | |
eac0e638 | 526 | cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars); |
2446536b | 527 | } |
528 | ||
529 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } | |
530 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } | |
531 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } | |
532 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } | |
533 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } | |
534 | ||
535 | unsigned retro_api_version(void) | |
536 | { | |
eac0e638 | 537 | return RETRO_API_VERSION; |
2446536b | 538 | } |
539 | ||
540 | void retro_set_controller_port_device(unsigned port, unsigned device) | |
541 | { | |
542 | } | |
543 | ||
544 | void retro_get_system_info(struct retro_system_info *info) | |
545 | { | |
eac0e638 | 546 | memset(info, 0, sizeof(*info)); |
547 | info->library_name = "PicoDrive"; | |
2d4f989d GR |
548 | #ifndef GIT_VERSION |
549 | #define GIT_VERSION "" | |
550 | #endif | |
551 | info->library_version = VERSION GIT_VERSION; | |
eac0e638 | 552 | info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms"; |
553 | info->need_fullpath = true; | |
2446536b | 554 | } |
555 | ||
556 | void retro_get_system_av_info(struct retro_system_av_info *info) | |
557 | { | |
eac0e638 | 558 | memset(info, 0, sizeof(*info)); |
559 | info->timing.fps = Pico.m.pal ? 50 : 60; | |
560 | info->timing.sample_rate = 44100; | |
e1360c66 | 561 | info->geometry.base_width = vout_width; |
eac0e638 | 562 | info->geometry.base_height = vout_height; |
e1360c66 D |
563 | info->geometry.max_width = vout_width; |
564 | info->geometry.max_height = vout_height; | |
f0a3d0dc | 565 | |
e1360c66 D |
566 | float common_width = vout_width; |
567 | if (user_vout_width != 0) | |
568 | common_width = user_vout_width; | |
f0a3d0dc | 569 | |
e1360c66 | 570 | info->geometry.aspect_ratio = common_width / vout_height; |
2446536b | 571 | } |
572 | ||
86b38dc4 | 573 | /* savestates */ |
574 | struct savestate_state { | |
eac0e638 | 575 | const char *load_buf; |
576 | char *save_buf; | |
577 | size_t size; | |
578 | size_t pos; | |
86b38dc4 | 579 | }; |
580 | ||
581 | size_t state_read(void *p, size_t size, size_t nmemb, void *file) | |
582 | { | |
eac0e638 | 583 | struct savestate_state *state = file; |
584 | size_t bsize = size * nmemb; | |
86b38dc4 | 585 | |
eac0e638 | 586 | if (state->pos + bsize > state->size) { |
f5d4045b | 587 | if (log_cb) |
588 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
589 | state->pos + bsize, state->size); | |
eac0e638 | 590 | bsize = state->size - state->pos; |
591 | if ((int)bsize <= 0) | |
592 | return 0; | |
593 | } | |
594 | ||
595 | memcpy(p, state->load_buf + state->pos, bsize); | |
596 | state->pos += bsize; | |
597 | return bsize; | |
86b38dc4 | 598 | } |
599 | ||
600 | size_t state_write(void *p, size_t size, size_t nmemb, void *file) | |
601 | { | |
eac0e638 | 602 | struct savestate_state *state = file; |
603 | size_t bsize = size * nmemb; | |
86b38dc4 | 604 | |
eac0e638 | 605 | if (state->pos + bsize > state->size) { |
f5d4045b | 606 | if (log_cb) |
607 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
608 | state->pos + bsize, state->size); | |
eac0e638 | 609 | bsize = state->size - state->pos; |
610 | if ((int)bsize <= 0) | |
611 | return 0; | |
612 | } | |
613 | ||
614 | memcpy(state->save_buf + state->pos, p, bsize); | |
615 | state->pos += bsize; | |
616 | return bsize; | |
86b38dc4 | 617 | } |
618 | ||
619 | size_t state_skip(void *p, size_t size, size_t nmemb, void *file) | |
620 | { | |
eac0e638 | 621 | struct savestate_state *state = file; |
622 | size_t bsize = size * nmemb; | |
86b38dc4 | 623 | |
eac0e638 | 624 | state->pos += bsize; |
625 | return bsize; | |
86b38dc4 | 626 | } |
627 | ||
628 | size_t state_eof(void *file) | |
629 | { | |
eac0e638 | 630 | struct savestate_state *state = file; |
86b38dc4 | 631 | |
eac0e638 | 632 | return state->pos >= state->size; |
86b38dc4 | 633 | } |
634 | ||
635 | int state_fseek(void *file, long offset, int whence) | |
636 | { | |
eac0e638 | 637 | struct savestate_state *state = file; |
638 | ||
639 | switch (whence) { | |
640 | case SEEK_SET: | |
641 | state->pos = offset; | |
642 | break; | |
643 | case SEEK_CUR: | |
644 | state->pos += offset; | |
645 | break; | |
646 | case SEEK_END: | |
647 | state->pos = state->size + offset; | |
648 | break; | |
649 | } | |
650 | return (int)state->pos; | |
86b38dc4 | 651 | } |
652 | ||
653 | /* savestate sizes vary wildly depending if cd/32x or | |
654 | * carthw is active, so run the whole thing to get size */ | |
eac0e638 | 655 | size_t retro_serialize_size(void) |
656 | { | |
657 | struct savestate_state state = { 0, }; | |
658 | int ret; | |
86b38dc4 | 659 | |
eac0e638 | 660 | ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek); |
661 | if (ret != 0) | |
662 | return 0; | |
86b38dc4 | 663 | |
eac0e638 | 664 | return state.pos; |
2446536b | 665 | } |
666 | ||
667 | bool retro_serialize(void *data, size_t size) | |
eac0e638 | 668 | { |
669 | struct savestate_state state = { 0, }; | |
670 | int ret; | |
86b38dc4 | 671 | |
eac0e638 | 672 | state.save_buf = data; |
673 | state.size = size; | |
674 | state.pos = 0; | |
86b38dc4 | 675 | |
eac0e638 | 676 | ret = PicoStateFP(&state, 1, NULL, state_write, |
677 | NULL, state_fseek); | |
678 | return ret == 0; | |
2446536b | 679 | } |
680 | ||
681 | bool retro_unserialize(const void *data, size_t size) | |
682 | { | |
eac0e638 | 683 | struct savestate_state state = { 0, }; |
684 | int ret; | |
86b38dc4 | 685 | |
eac0e638 | 686 | state.load_buf = data; |
687 | state.size = size; | |
688 | state.pos = 0; | |
86b38dc4 | 689 | |
eac0e638 | 690 | ret = PicoStateFP(&state, 0, state_read, NULL, |
691 | state_eof, state_fseek); | |
692 | return ret == 0; | |
2446536b | 693 | } |
694 | ||
daae6156 | 695 | typedef struct patch |
696 | { | |
697 | unsigned int addr; | |
698 | unsigned short data; | |
fa55ee51 | 699 | unsigned char comp; |
daae6156 | 700 | } patch; |
701 | ||
702 | extern void decode(char *buff, patch *dest); | |
703 | extern uint16_t m68k_read16(uint32_t a); | |
704 | extern void m68k_write16(uint32_t a, uint16_t d); | |
20563b60 | 705 | |
2446536b | 706 | void retro_cheat_reset(void) |
707 | { | |
20563b60 | 708 | int i=0; |
709 | unsigned int addr; | |
710 | ||
711 | for (i = 0; i < PicoPatchCount; i++) | |
712 | { | |
713 | addr = PicoPatches[i].addr; | |
daae6156 | 714 | if (addr < Pico.romsize) { |
20563b60 | 715 | if (PicoPatches[i].active) |
716 | *(unsigned short *)(Pico.rom + addr) = PicoPatches[i].data_old; | |
daae6156 | 717 | } else { |
20563b60 | 718 | if (PicoPatches[i].active) |
719 | m68k_write16(PicoPatches[i].addr,PicoPatches[i].data_old); | |
daae6156 | 720 | } |
20563b60 | 721 | } |
722 | ||
723 | PicoPatchUnload(); | |
2446536b | 724 | } |
725 | ||
6cf45534 | 726 | void retro_cheat_set(unsigned index, bool enabled, const char *code) |
2446536b | 727 | { |
daae6156 | 728 | patch pt; |
e5326b1a | 729 | int array_len = PicoPatchCount; |
daae6156 | 730 | char codeCopy[256]; |
6cf45534 | 731 | char *buff; |
20563b60 | 732 | |
fa55ee51 | 733 | if (code=='\0') return; |
daae6156 | 734 | strcpy(codeCopy,code); |
fa55ee51 | 735 | buff = strtok(codeCopy,"+"); |
20563b60 | 736 | |
d4089d9b | 737 | while (buff != NULL) |
6cf45534 | 738 | { |
20563b60 | 739 | decode(buff, &pt); |
daae6156 | 740 | if (pt.addr == (uint32_t) -1 || pt.data == (uint16_t) -1) |
6cf45534 | 741 | { |
20563b60 | 742 | log_cb(RETRO_LOG_ERROR,"CHEATS: Invalid code: %s\n",buff); |
743 | return; | |
744 | } | |
745 | ||
746 | /* code was good, add it */ | |
747 | if (array_len < PicoPatchCount + 1) | |
748 | { | |
749 | void *ptr; | |
750 | array_len *= 2; | |
751 | array_len++; | |
752 | ptr = realloc(PicoPatches, array_len * sizeof(PicoPatches[0])); | |
753 | if (ptr == NULL) { | |
754 | log_cb(RETRO_LOG_ERROR,"CHEATS: Failed to allocate memory for: %s\n",buff); | |
755 | return; | |
756 | } | |
757 | PicoPatches = ptr; | |
758 | } | |
759 | strcpy(PicoPatches[PicoPatchCount].code, buff); | |
760 | ||
20563b60 | 761 | PicoPatches[PicoPatchCount].active = enabled; |
762 | PicoPatches[PicoPatchCount].addr = pt.addr; | |
763 | PicoPatches[PicoPatchCount].data = pt.data; | |
fa55ee51 | 764 | PicoPatches[PicoPatchCount].comp = pt.comp; |
20563b60 | 765 | if (PicoPatches[PicoPatchCount].addr < Pico.romsize) |
daae6156 | 766 | PicoPatches[PicoPatchCount].data_old = *(uint16_t *)(Pico.rom + PicoPatches[PicoPatchCount].addr); |
20563b60 | 767 | else |
daae6156 | 768 | PicoPatches[PicoPatchCount].data_old = (uint16_t) m68k_read16(PicoPatches[PicoPatchCount].addr); |
20563b60 | 769 | PicoPatchCount++; |
d4089d9b | 770 | |
e5326b1a | 771 | buff = strtok(NULL,"+"); |
6cf45534 | 772 | } |
2446536b | 773 | } |
774 | ||
775 | /* multidisk support */ | |
776 | static bool disk_ejected; | |
777 | static unsigned int disk_current_index; | |
778 | static unsigned int disk_count; | |
779 | static struct disks_state { | |
eac0e638 | 780 | char *fname; |
2446536b | 781 | } disks[8]; |
782 | ||
783 | static bool disk_set_eject_state(bool ejected) | |
784 | { | |
eac0e638 | 785 | // TODO? |
786 | disk_ejected = ejected; | |
787 | return true; | |
2446536b | 788 | } |
789 | ||
790 | static bool disk_get_eject_state(void) | |
791 | { | |
eac0e638 | 792 | return disk_ejected; |
2446536b | 793 | } |
794 | ||
795 | static unsigned int disk_get_image_index(void) | |
796 | { | |
eac0e638 | 797 | return disk_current_index; |
2446536b | 798 | } |
799 | ||
800 | static bool disk_set_image_index(unsigned int index) | |
801 | { | |
eac0e638 | 802 | enum cd_img_type cd_type; |
803 | int ret; | |
2446536b | 804 | |
eac0e638 | 805 | if (index >= sizeof(disks) / sizeof(disks[0])) |
806 | return false; | |
2446536b | 807 | |
eac0e638 | 808 | if (disks[index].fname == NULL) { |
f5d4045b | 809 | if (log_cb) |
810 | log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index); | |
2446536b | 811 | |
eac0e638 | 812 | // RetroArch specifies "no disk" with index == count, |
813 | // so don't fail here.. | |
814 | disk_current_index = index; | |
815 | return true; | |
816 | } | |
2446536b | 817 | |
f5d4045b | 818 | if (log_cb) |
819 | log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index, | |
820 | disks[index].fname); | |
2446536b | 821 | |
eac0e638 | 822 | ret = -1; |
823 | cd_type = PicoCdCheck(disks[index].fname, NULL); | |
824 | if (cd_type != CIT_NOT_CD) | |
825 | ret = cdd_load(disks[index].fname, cd_type); | |
826 | if (ret != 0) { | |
f5d4045b | 827 | if (log_cb) |
828 | log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n"); | |
eac0e638 | 829 | return 0; |
830 | } | |
2446536b | 831 | |
eac0e638 | 832 | disk_current_index = index; |
833 | return true; | |
2446536b | 834 | } |
835 | ||
836 | static unsigned int disk_get_num_images(void) | |
837 | { | |
eac0e638 | 838 | return disk_count; |
2446536b | 839 | } |
840 | ||
841 | static bool disk_replace_image_index(unsigned index, | |
eac0e638 | 842 | const struct retro_game_info *info) |
2446536b | 843 | { |
eac0e638 | 844 | bool ret = true; |
2446536b | 845 | |
eac0e638 | 846 | if (index >= sizeof(disks) / sizeof(disks[0])) |
847 | return false; | |
2446536b | 848 | |
eac0e638 | 849 | if (disks[index].fname != NULL) |
850 | free(disks[index].fname); | |
851 | disks[index].fname = NULL; | |
2446536b | 852 | |
eac0e638 | 853 | if (info != NULL) { |
854 | disks[index].fname = strdup(info->path); | |
855 | if (index == disk_current_index) | |
856 | ret = disk_set_image_index(index); | |
857 | } | |
2446536b | 858 | |
eac0e638 | 859 | return ret; |
2446536b | 860 | } |
861 | ||
862 | static bool disk_add_image_index(void) | |
863 | { | |
eac0e638 | 864 | if (disk_count >= sizeof(disks) / sizeof(disks[0])) |
865 | return false; | |
2446536b | 866 | |
eac0e638 | 867 | disk_count++; |
868 | return true; | |
2446536b | 869 | } |
870 | ||
871 | static struct retro_disk_control_callback disk_control = { | |
eac0e638 | 872 | disk_set_eject_state, |
873 | disk_get_eject_state, | |
874 | disk_get_image_index, | |
875 | disk_set_image_index, | |
876 | disk_get_num_images, | |
877 | disk_replace_image_index, | |
878 | disk_add_image_index, | |
2446536b | 879 | }; |
880 | ||
881 | static void disk_tray_open(void) | |
882 | { | |
f5d4045b | 883 | if (log_cb) |
884 | log_cb(RETRO_LOG_INFO, "cd tray open\n"); | |
eac0e638 | 885 | disk_ejected = 1; |
2446536b | 886 | } |
887 | ||
888 | static void disk_tray_close(void) | |
889 | { | |
f5d4045b | 890 | if (log_cb) |
891 | log_cb(RETRO_LOG_INFO, "cd tray close\n"); | |
eac0e638 | 892 | disk_ejected = 0; |
2446536b | 893 | } |
894 | ||
895 | ||
896 | static const char * const biosfiles_us[] = { | |
eac0e638 | 897 | "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U" |
2446536b | 898 | }; |
899 | static const char * const biosfiles_eu[] = { | |
eac0e638 | 900 | "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E" |
2446536b | 901 | }; |
902 | static const char * const biosfiles_jp[] = { | |
eac0e638 | 903 | "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J" |
2446536b | 904 | }; |
905 | ||
906 | static void make_system_path(char *buf, size_t buf_size, | |
eac0e638 | 907 | const char *name, const char *ext) |
2446536b | 908 | { |
eac0e638 | 909 | const char *dir = NULL; |
910 | ||
911 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) { | |
912 | snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext); | |
913 | } | |
914 | else { | |
915 | snprintf(buf, buf_size, "%s%s", name, ext); | |
916 | } | |
2446536b | 917 | } |
918 | ||
919 | static const char *find_bios(int *region, const char *cd_fname) | |
920 | { | |
eac0e638 | 921 | const char * const *files; |
922 | static char path[256]; | |
923 | int i, count; | |
924 | FILE *f = NULL; | |
925 | ||
926 | if (*region == 4) { // US | |
927 | files = biosfiles_us; | |
928 | count = sizeof(biosfiles_us) / sizeof(char *); | |
929 | } else if (*region == 8) { // EU | |
930 | files = biosfiles_eu; | |
931 | count = sizeof(biosfiles_eu) / sizeof(char *); | |
932 | } else if (*region == 1 || *region == 2) { | |
933 | files = biosfiles_jp; | |
934 | count = sizeof(biosfiles_jp) / sizeof(char *); | |
935 | } else { | |
936 | return NULL; | |
937 | } | |
938 | ||
939 | for (i = 0; i < count; i++) | |
940 | { | |
941 | make_system_path(path, sizeof(path), files[i], ".bin"); | |
942 | f = fopen(path, "rb"); | |
943 | if (f != NULL) | |
944 | break; | |
945 | ||
946 | make_system_path(path, sizeof(path), files[i], ".zip"); | |
947 | f = fopen(path, "rb"); | |
948 | if (f != NULL) | |
949 | break; | |
950 | } | |
951 | ||
952 | if (f != NULL) { | |
f5d4045b | 953 | if (log_cb) |
954 | log_cb(RETRO_LOG_INFO, "using bios: %s\n", path); | |
eac0e638 | 955 | fclose(f); |
956 | return path; | |
957 | } | |
2446536b | 958 | |
eac0e638 | 959 | return NULL; |
2446536b | 960 | } |
961 | ||
6d0aaeaf | 962 | static void sram_reset() |
963 | { | |
964 | SRam.data = NULL; | |
965 | SRam.start = 0; | |
966 | SRam.end = 0; | |
967 | SRam.flags = '\0'; | |
968 | SRam.unused2 = '\0'; | |
969 | SRam.changed = '\0' ; | |
970 | SRam.eeprom_type = '\0'; | |
971 | SRam.unused3 = '\0'; | |
972 | SRam.eeprom_bit_cl = '\0'; | |
973 | SRam.eeprom_bit_in = '\0'; | |
974 | SRam.eeprom_bit_out = '\0'; | |
975 | SRam.size = 0; | |
976 | } | |
977 | ||
2446536b | 978 | bool retro_load_game(const struct retro_game_info *info) |
979 | { | |
eac0e638 | 980 | enum media_type_e media_type; |
981 | static char carthw_path[256]; | |
982 | size_t i; | |
2446536b | 983 | |
a1f2e1b1 | 984 | struct retro_input_descriptor desc[] = { |
985 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
986 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
987 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
988 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
989 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
990 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
991 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
992 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
993 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
994 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
17d4733d D |
995 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, |
996 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
a1f2e1b1 | 997 | |
998 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
999 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
1000 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
1001 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
1002 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
1003 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
1004 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
1005 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
1006 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
1007 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
17d4733d D |
1008 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, |
1009 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
a1f2e1b1 | 1010 | |
1011 | { 0 }, | |
1012 | }; | |
1013 | ||
17d4733d D |
1014 | struct retro_input_descriptor desc_sms[] = { |
1015 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
1016 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
1017 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
1018 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
0fa9e859 D |
1019 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, |
1020 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, | |
1021 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, | |
17d4733d D |
1022 | |
1023 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
1024 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
1025 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
1026 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
0fa9e859 D |
1027 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, |
1028 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, | |
1029 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, | |
17d4733d D |
1030 | |
1031 | { 0 }, | |
1032 | }; | |
a1f2e1b1 | 1033 | |
6d0aaeaf | 1034 | sram_reset(); |
1035 | ||
eac0e638 | 1036 | enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; |
1037 | if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { | |
f5d4045b | 1038 | if (log_cb) |
1039 | log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n"); | |
eac0e638 | 1040 | return false; |
1041 | } | |
2446536b | 1042 | |
eac0e638 | 1043 | if (info == NULL || info->path == NULL) { |
f5d4045b | 1044 | if (log_cb) |
1045 | log_cb(RETRO_LOG_ERROR, "info->path required\n"); | |
eac0e638 | 1046 | return false; |
1047 | } | |
2446536b | 1048 | |
eac0e638 | 1049 | for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) { |
1050 | if (disks[i].fname != NULL) { | |
1051 | free(disks[i].fname); | |
1052 | disks[i].fname = NULL; | |
1053 | } | |
1054 | } | |
2446536b | 1055 | |
eac0e638 | 1056 | disk_current_index = 0; |
1057 | disk_count = 1; | |
1058 | disks[0].fname = strdup(info->path); | |
2446536b | 1059 | |
eac0e638 | 1060 | make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg"); |
2446536b | 1061 | |
eac0e638 | 1062 | media_type = PicoLoadMedia(info->path, carthw_path, |
1063 | find_bios, NULL); | |
2446536b | 1064 | |
eac0e638 | 1065 | switch (media_type) { |
1066 | case PM_BAD_DETECT: | |
f5d4045b | 1067 | if (log_cb) |
1068 | log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n"); | |
eac0e638 | 1069 | return false; |
1070 | case PM_BAD_CD: | |
f5d4045b | 1071 | if (log_cb) |
1072 | log_cb(RETRO_LOG_ERROR, "Invalid CD image\n"); | |
eac0e638 | 1073 | return false; |
1074 | case PM_BAD_CD_NO_BIOS: | |
f5d4045b | 1075 | if (log_cb) |
1076 | log_cb(RETRO_LOG_ERROR, "Missing BIOS\n"); | |
eac0e638 | 1077 | return false; |
1078 | case PM_ERROR: | |
f5d4045b | 1079 | if (log_cb) |
1080 | log_cb(RETRO_LOG_ERROR, "Load error\n"); | |
eac0e638 | 1081 | return false; |
1082 | default: | |
1083 | break; | |
1084 | } | |
2446536b | 1085 | |
17d4733d D |
1086 | if (media_type == PM_MARK3) |
1087 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc_sms); | |
1088 | else | |
1089 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); | |
1090 | ||
eac0e638 | 1091 | PicoLoopPrepare(); |
2446536b | 1092 | |
eac0e638 | 1093 | PicoWriteSound = snd_write; |
1094 | memset(sndBuffer, 0, sizeof(sndBuffer)); | |
1095 | PsndOut = sndBuffer; | |
1096 | PsndRerate(0); | |
2446536b | 1097 | |
eac0e638 | 1098 | return true; |
2446536b | 1099 | } |
1100 | ||
1101 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) | |
1102 | { | |
eac0e638 | 1103 | return false; |
2446536b | 1104 | } |
1105 | ||
eac0e638 | 1106 | void retro_unload_game(void) |
2446536b | 1107 | { |
1108 | } | |
1109 | ||
1110 | unsigned retro_get_region(void) | |
1111 | { | |
eac0e638 | 1112 | return Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; |
2446536b | 1113 | } |
1114 | ||
c3e69f81 | 1115 | void *retro_get_memory_data(unsigned type) |
2446536b | 1116 | { |
c3e69f81 | 1117 | uint8_t* data; |
2446536b | 1118 | |
c3e69f81 DS |
1119 | switch(type) |
1120 | { | |
1121 | case RETRO_MEMORY_SAVE_RAM: | |
1122 | if (PicoAHW & PAHW_MCD) | |
1123 | data = Pico_mcd->bram; | |
1124 | else | |
1125 | data = SRam.data; | |
1126 | break; | |
1127 | case RETRO_MEMORY_SYSTEM_RAM: | |
1128 | if (PicoAHW & PAHW_SMS) | |
1129 | data = Pico.vramb; | |
1130 | else | |
1131 | data = Pico.ram; | |
1132 | break; | |
1133 | default: | |
1134 | data = NULL; | |
1135 | break; | |
1136 | } | |
f0a3d0dc | 1137 | |
c3e69f81 | 1138 | return data; |
2446536b | 1139 | } |
1140 | ||
c3e69f81 | 1141 | size_t retro_get_memory_size(unsigned type) |
2446536b | 1142 | { |
eac0e638 | 1143 | unsigned int i; |
1144 | int sum; | |
f0a3d0dc | 1145 | |
c3e69f81 DS |
1146 | switch(type) |
1147 | { | |
1148 | case RETRO_MEMORY_SAVE_RAM: | |
1149 | if (PicoAHW & PAHW_MCD) | |
1150 | // bram | |
1151 | return 0x2000; | |
1152 | ||
1153 | if (Pico.m.frame_count == 0) | |
1154 | return SRam.size; | |
1155 | ||
1156 | // if game doesn't write to sram, don't report it to | |
1157 | // libretro so that RA doesn't write out zeroed .srm | |
1158 | for (i = 0, sum = 0; i < SRam.size; i++) | |
1159 | sum |= SRam.data[i]; | |
1160 | ||
1161 | return (sum != 0) ? SRam.size : 0; | |
f0a3d0dc | 1162 | |
c3e69f81 DS |
1163 | case RETRO_MEMORY_SYSTEM_RAM: |
1164 | if (PicoAHW & PAHW_SMS) | |
1165 | return sizeof(Pico.vramb); | |
1166 | else | |
1167 | return sizeof(Pico.ram); | |
f0a3d0dc | 1168 | |
c3e69f81 DS |
1169 | default: |
1170 | return 0; | |
1171 | } | |
f0a3d0dc | 1172 | |
2446536b | 1173 | } |
1174 | ||
1175 | void retro_reset(void) | |
1176 | { | |
eac0e638 | 1177 | PicoReset(); |
2446536b | 1178 | } |
1179 | ||
1180 | static const unsigned short retro_pico_map[] = { | |
eac0e638 | 1181 | 1 << GBTN_B, |
1182 | 1 << GBTN_A, | |
1183 | 1 << GBTN_MODE, | |
1184 | 1 << GBTN_START, | |
1185 | 1 << GBTN_UP, | |
1186 | 1 << GBTN_DOWN, | |
1187 | 1 << GBTN_LEFT, | |
1188 | 1 << GBTN_RIGHT, | |
1189 | 1 << GBTN_C, | |
1190 | 1 << GBTN_Y, | |
1191 | 1 << GBTN_X, | |
1192 | 1 << GBTN_Z, | |
2446536b | 1193 | }; |
1194 | #define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0])) | |
1195 | ||
1196 | static void snd_write(int len) | |
1197 | { | |
eac0e638 | 1198 | audio_batch_cb(PsndOut, len / 4); |
2446536b | 1199 | } |
1200 | ||
531a8f38 | 1201 | static enum input_device input_name_to_val(const char *name) |
1202 | { | |
eac0e638 | 1203 | if (strcmp(name, "3 button pad") == 0) |
1204 | return PICO_INPUT_PAD_3BTN; | |
1205 | if (strcmp(name, "6 button pad") == 0) | |
1206 | return PICO_INPUT_PAD_6BTN; | |
1207 | if (strcmp(name, "None") == 0) | |
1208 | return PICO_INPUT_NOTHING; | |
531a8f38 | 1209 | |
f5d4045b | 1210 | if (log_cb) |
1211 | log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name); | |
eac0e638 | 1212 | return PICO_INPUT_PAD_3BTN; |
531a8f38 | 1213 | } |
1214 | ||
1215 | static void update_variables(void) | |
1216 | { | |
eac0e638 | 1217 | struct retro_variable var; |
1218 | ||
1219 | var.value = NULL; | |
1220 | var.key = "picodrive_input1"; | |
1221 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1222 | PicoSetInputDevice(0, input_name_to_val(var.value)); | |
1223 | ||
1224 | var.value = NULL; | |
1225 | var.key = "picodrive_input2"; | |
1226 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1227 | PicoSetInputDevice(1, input_name_to_val(var.value)); | |
1228 | ||
1229 | var.value = NULL; | |
1230 | var.key = "picodrive_sprlim"; | |
1231 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1232 | if (strcmp(var.value, "enabled") == 0) | |
1233 | PicoOpt |= POPT_DIS_SPRITE_LIM; | |
1234 | else | |
1235 | PicoOpt &= ~POPT_DIS_SPRITE_LIM; | |
1236 | } | |
1237 | ||
1238 | var.value = NULL; | |
1239 | var.key = "picodrive_ramcart"; | |
1240 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1241 | if (strcmp(var.value, "enabled") == 0) | |
1242 | PicoOpt |= POPT_EN_MCD_RAMCART; | |
1243 | else | |
1244 | PicoOpt &= ~POPT_EN_MCD_RAMCART; | |
1245 | } | |
1246 | ||
48582bcf | 1247 | int OldPicoRegionOverride = PicoRegionOverride; |
eac0e638 | 1248 | var.value = NULL; |
1249 | var.key = "picodrive_region"; | |
1250 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1251 | if (strcmp(var.value, "Auto") == 0) | |
1252 | PicoRegionOverride = 0; | |
1253 | else if (strcmp(var.value, "Japan NTSC") == 0) | |
1254 | PicoRegionOverride = 1; | |
1255 | else if (strcmp(var.value, "Japan PAL") == 0) | |
1256 | PicoRegionOverride = 2; | |
1257 | else if (strcmp(var.value, "US") == 0) | |
1258 | PicoRegionOverride = 4; | |
1259 | else if (strcmp(var.value, "Europe") == 0) | |
1260 | PicoRegionOverride = 8; | |
1261 | } | |
b38bccea | 1262 | |
48582bcf D |
1263 | int OldPicoRegionFPSOverride = PicoRegionFPSOverride; |
1264 | var.value = NULL; | |
1265 | var.key = "picodrive_region_fps"; | |
1266 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1267 | if (strcmp(var.value, "Auto") == 0) | |
1268 | PicoRegionFPSOverride = 0; | |
1269 | else if (strcmp(var.value, "NTSC") == 0) | |
1270 | PicoRegionFPSOverride = 1; | |
1271 | else if (strcmp(var.value, "PAL") == 0) | |
f0a3d0dc | 1272 | PicoRegionFPSOverride = 2; |
48582bcf | 1273 | } |
17d4733d | 1274 | |
48582bcf D |
1275 | // Update region, fps and sound flags if needed |
1276 | if (PicoRegionOverride != OldPicoRegionOverride || | |
1277 | PicoRegionFPSOverride != OldPicoRegionFPSOverride) | |
1278 | { | |
1279 | PicoDetectRegion(); | |
1280 | PicoLoopPrepare(); | |
1281 | PsndRerate(1); | |
1282 | } | |
17d4733d | 1283 | |
e1360c66 D |
1284 | float old_user_vout_width = user_vout_width; |
1285 | var.value = NULL; | |
1286 | var.key = "picodrive_aspect"; | |
1287 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1288 | if (strcmp(var.value, "4/3") == 0) | |
1289 | user_vout_width = VOUT_4_3; | |
1290 | else if (strcmp(var.value, "CRT") == 0) | |
1291 | user_vout_width = VOUT_CRT; | |
1292 | else | |
f0a3d0dc | 1293 | user_vout_width = VOUT_PAR; |
1294 | } | |
1295 | ||
1296 | var.value = NULL; | |
1297 | var.key = "picodrive_overscan"; | |
1298 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1299 | if (strcmp(var.value, "enabled") == 0) | |
1300 | show_overscan = true; | |
1301 | else | |
1302 | show_overscan = false; | |
e1360c66 D |
1303 | } |
1304 | ||
1305 | if (user_vout_width != old_user_vout_width) | |
1306 | { | |
1307 | // Update the geometry | |
1308 | struct retro_system_av_info av_info; | |
1309 | retro_get_system_av_info(&av_info); | |
1310 | environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); | |
1311 | } | |
1312 | ||
0185b677 | 1313 | #ifdef DRC_SH2 |
eac0e638 | 1314 | var.value = NULL; |
1315 | var.key = "picodrive_drc"; | |
1316 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1317 | if (strcmp(var.value, "enabled") == 0) | |
1318 | PicoOpt |= POPT_EN_DRC; | |
1319 | else | |
1320 | PicoOpt &= ~POPT_EN_DRC; | |
1321 | } | |
0185b677 | 1322 | #endif |
0c732676 | 1323 | #ifdef _3DS |
1324 | if(!ctr_svchack_successful) | |
1325 | PicoOpt &= ~POPT_EN_DRC; | |
1326 | #endif | |
531a8f38 | 1327 | } |
1328 | ||
eac0e638 | 1329 | void retro_run(void) |
2446536b | 1330 | { |
eac0e638 | 1331 | bool updated = false; |
1332 | int pad, i; | |
2446536b | 1333 | |
eac0e638 | 1334 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) |
1335 | update_variables(); | |
2446536b | 1336 | |
0c732676 | 1337 | input_poll_cb(); |
2446536b | 1338 | |
eac0e638 | 1339 | PicoPad[0] = PicoPad[1] = 0; |
1340 | for (pad = 0; pad < 2; pad++) | |
1341 | for (i = 0; i < RETRO_PICO_MAP_LEN; i++) | |
1342 | if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i)) | |
1343 | PicoPad[pad] |= retro_pico_map[i]; | |
2446536b | 1344 | |
20563b60 | 1345 | PicoPatchApply(); |
eac0e638 | 1346 | PicoFrame(); |
2446536b | 1347 | |
eac0e638 | 1348 | video_cb((short *)vout_buf + vout_offset, |
1349 | vout_width, vout_height, vout_width * 2); | |
2446536b | 1350 | } |
1351 | ||
2f832b7f | 1352 | static void check_system_specs(void) |
1353 | { | |
1354 | /* TODO - set different performance level for 32X - 6 for ARM dynarec, higher for interpreter core */ | |
1355 | unsigned level = 5; | |
1356 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
1357 | } | |
1358 | ||
2446536b | 1359 | void retro_init(void) |
1360 | { | |
f5d4045b | 1361 | struct retro_log_callback log; |
eac0e638 | 1362 | int level; |
2446536b | 1363 | |
eac0e638 | 1364 | level = 0; |
1365 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
2446536b | 1366 | |
c681e48d | 1367 | if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) |
f5d4045b | 1368 | log_cb = log.log; |
c681e48d | 1369 | else |
1370 | log_cb = NULL; | |
f5d4045b | 1371 | |
eac0e638 | 1372 | environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); |
2446536b | 1373 | |
0c732676 | 1374 | #ifdef _3DS |
1375 | ctr_svchack_successful = ctr_svchack_init(); | |
88f7643f | 1376 | #elif defined(VITA) |
1377 | sceBlock = getVMBlock(); | |
0c732676 | 1378 | #endif |
1379 | ||
eac0e638 | 1380 | PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
1381 | | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX | |
1382 | | POPT_EN_32X|POPT_EN_PWM | |
1383 | | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER; | |
720bfc5d | 1384 | #ifdef __arm__ |
0c732676 | 1385 | #ifdef _3DS |
1386 | if (ctr_svchack_successful) | |
1387 | #endif | |
1388 | PicoOpt |= POPT_EN_DRC; | |
720bfc5d | 1389 | #endif |
eac0e638 | 1390 | PsndRate = 44100; |
1391 | PicoAutoRgnOrder = 0x184; // US, EU, JP | |
2446536b | 1392 | |
eac0e638 | 1393 | vout_width = 320; |
0c732676 | 1394 | vout_height = 240; |
ad2ccfbc | 1395 | #ifdef _3DS |
1396 | vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80); | |
1397 | #else | |
0c732676 | 1398 | vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); |
ad2ccfbc | 1399 | #endif |
2446536b | 1400 | |
0c732676 | 1401 | PicoInit(); |
1402 | PicoDrawSetOutFormat(PDF_RGB555, 0); | |
1403 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
2446536b | 1404 | |
eac0e638 | 1405 | //PicoMessage = plat_status_msg_busy_next; |
1406 | PicoMCDopenTray = disk_tray_open; | |
1407 | PicoMCDcloseTray = disk_tray_close; | |
531a8f38 | 1408 | |
0c732676 | 1409 | update_variables(); |
2446536b | 1410 | } |
1411 | ||
1412 | void retro_deinit(void) | |
1413 | { | |
ad2ccfbc | 1414 | #ifdef _3DS |
1415 | linearFree(vout_buf); | |
1416 | #else | |
1417 | free(vout_buf); | |
1418 | #endif | |
1419 | vout_buf = NULL; | |
eac0e638 | 1420 | PicoExit(); |
2446536b | 1421 | } |