Commit | Line | Data |
---|---|---|
2446536b | 1 | /* |
2 | * libretro core glue for PicoDrive | |
3 | * (C) notaz, 2013 | |
e8454cb0 | 4 | * (C) Daniel De Matteis, 2013 |
2446536b | 5 | * |
6 | * This work is licensed under the terms of MAME license. | |
7 | * See COPYING file in the top-level directory. | |
8 | */ | |
9 | ||
10 | #define _GNU_SOURCE 1 // mremap | |
11 | #include <stdio.h> | |
12 | #include <stdarg.h> | |
13 | #include <string.h> | |
e8b61936 | 14 | #ifndef _WIN32 |
f18d0e08 | 15 | #ifndef NO_MMAP |
2446536b | 16 | #include <sys/mman.h> |
f18d0e08 | 17 | #endif |
e8b61936 | 18 | #else |
6f1133bc | 19 | #include <io.h> |
e8b61936 | 20 | #include <windows.h> |
6f1133bc | 21 | #include <sys/types.h> |
e8b61936 | 22 | #endif |
c25d78ee | 23 | #include <errno.h> |
2446536b | 24 | #ifdef __MACH__ |
25 | #include <libkern/OSCacheControl.h> | |
26 | #endif | |
27 | ||
0c732676 | 28 | #ifdef _3DS |
29 | #include "3ds/3ds_utils.h" | |
ad2ccfbc | 30 | #define MEMOP_MAP 4 |
31 | #define MEMOP_UNMAP 5 | |
32 | #define MEMOP_PROT 6 | |
33 | ||
0c732676 | 34 | int svcDuplicateHandle(unsigned int* out, unsigned int original); |
35 | int svcCloseHandle(unsigned int handle); | |
36 | int svcControlProcessMemory(unsigned int process, void* addr0, void* addr1, | |
37 | unsigned int size, unsigned int type, unsigned int perm); | |
ad2ccfbc | 38 | void* linearMemAlign(size_t size, size_t alignment); |
39 | void linearFree(void* mem); | |
0c732676 | 40 | |
41 | static int ctr_svchack_successful = 0; | |
88f7643f | 42 | |
43 | #elif defined(VITA) | |
44 | #define TARGET_SIZE_2 24 // 2^24 = 16 megabytes | |
45 | ||
46 | #include <psp2/kernel/sysmem.h> | |
47 | static int sceBlock; | |
48 | int getVMBlock(); | |
49 | int _newlib_vm_size_user = 1 << TARGET_SIZE_2; | |
50 | ||
0c732676 | 51 | #endif |
52 | ||
2446536b | 53 | #include <pico/pico_int.h> |
86b38dc4 | 54 | #include <pico/state.h> |
5345c2b9 T |
55 | #include "../common/input_pico.h" |
56 | #include "../common/version.h" | |
2446536b | 57 | #include "libretro.h" |
58 | ||
f5d4045b | 59 | static retro_log_printf_t log_cb; |
2446536b | 60 | static retro_video_refresh_t video_cb; |
61 | static retro_input_poll_t input_poll_cb; | |
62 | static retro_input_state_t input_state_cb; | |
63 | static retro_environment_t environ_cb; | |
64 | static retro_audio_sample_batch_t audio_batch_cb; | |
65 | ||
2446536b | 66 | #define VOUT_MAX_WIDTH 320 |
67 | #define VOUT_MAX_HEIGHT 240 | |
e1360c66 D |
68 | |
69 | static const float VOUT_PAR = 0.0; | |
70 | static const float VOUT_4_3 = (224.0f * (4.0f / 3.0f)); | |
71 | static const float VOUT_CRT = (224.0f * 1.29911f); | |
72 | ||
2446536b | 73 | static void *vout_buf; |
51c08950 | 74 | static int vout_width, vout_height, vout_offset; |
e1360c66 | 75 | static float user_vout_width = 0.0; |
2446536b | 76 | |
ed06ffd3 T |
77 | #ifdef _MSC_VER |
78 | static short sndBuffer[2*44100/50]; | |
79 | #else | |
2446536b | 80 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50]; |
ed06ffd3 | 81 | #endif |
2446536b | 82 | |
2446536b | 83 | static void snd_write(int len); |
84 | ||
85 | #ifdef _WIN32 | |
86 | #define SLASH '\\' | |
87 | #else | |
88 | #define SLASH '/' | |
89 | #endif | |
90 | ||
91 | /* functions called by the core */ | |
92 | ||
93 | void cache_flush_d_inval_i(void *start, void *end) | |
94 | { | |
95 | #ifdef __arm__ | |
88f7643f | 96 | size_t len = (char *)end - (char *)start; |
2446536b | 97 | #if defined(__BLACKBERRY_QNX__) |
eac0e638 | 98 | msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
2446536b | 99 | #elif defined(__MACH__) |
eac0e638 | 100 | sys_dcache_flush(start, len); |
101 | sys_icache_invalidate(start, len); | |
0c732676 | 102 | #elif defined(_3DS) |
103 | ctr_flush_invalidate_cache(); | |
88f7643f | 104 | #elif defined(VITA) |
105 | sceKernelSyncVMDomain(sceBlock, start, len); | |
2446536b | 106 | #else |
0c732676 | 107 | __clear_cache(start, end); |
2446536b | 108 | #endif |
109 | #endif | |
110 | } | |
111 | ||
e8b61936 | 112 | #ifdef _WIN32 |
6f1133bc T |
113 | /* mmap() replacement for Windows |
114 | * | |
115 | * Author: Mike Frysinger <vapier@gentoo.org> | |
116 | * Placed into the public domain | |
117 | */ | |
118 | ||
119 | /* References: | |
120 | * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx | |
121 | * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx | |
122 | * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx | |
123 | * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx | |
124 | */ | |
125 | ||
126 | #define PROT_READ 0x1 | |
127 | #define PROT_WRITE 0x2 | |
128 | /* This flag is only available in WinXP+ */ | |
129 | #ifdef FILE_MAP_EXECUTE | |
130 | #define PROT_EXEC 0x4 | |
131 | #else | |
132 | #define PROT_EXEC 0x0 | |
133 | #define FILE_MAP_EXECUTE 0 | |
134 | #endif | |
135 | ||
136 | #define MAP_SHARED 0x01 | |
137 | #define MAP_PRIVATE 0x02 | |
138 | #define MAP_ANONYMOUS 0x20 | |
139 | #define MAP_ANON MAP_ANONYMOUS | |
140 | #define MAP_FAILED ((void *) -1) | |
141 | ||
142 | #ifdef __USE_FILE_OFFSET64 | |
143 | # define DWORD_HI(x) (x >> 32) | |
144 | # define DWORD_LO(x) ((x) & 0xffffffff) | |
145 | #else | |
146 | # define DWORD_HI(x) (0) | |
147 | # define DWORD_LO(x) (x) | |
148 | #endif | |
149 | ||
150 | static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | |
2446536b | 151 | { |
eac0e638 | 152 | uint32_t flProtect, dwDesiredAccess; |
153 | off_t end; | |
154 | HANDLE mmap_fd, h; | |
155 | void *ret; | |
156 | ||
157 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) | |
158 | return MAP_FAILED; | |
159 | if (fd == -1) { | |
160 | if (!(flags & MAP_ANON) || offset) | |
161 | return MAP_FAILED; | |
162 | } else if (flags & MAP_ANON) | |
163 | return MAP_FAILED; | |
164 | ||
165 | if (prot & PROT_WRITE) { | |
166 | if (prot & PROT_EXEC) | |
167 | flProtect = PAGE_EXECUTE_READWRITE; | |
168 | else | |
169 | flProtect = PAGE_READWRITE; | |
170 | } else if (prot & PROT_EXEC) { | |
171 | if (prot & PROT_READ) | |
172 | flProtect = PAGE_EXECUTE_READ; | |
173 | else if (prot & PROT_EXEC) | |
174 | flProtect = PAGE_EXECUTE; | |
175 | } else | |
176 | flProtect = PAGE_READONLY; | |
177 | ||
178 | end = length + offset; | |
179 | ||
180 | if (fd == -1) | |
181 | mmap_fd = INVALID_HANDLE_VALUE; | |
182 | else | |
183 | mmap_fd = (HANDLE)_get_osfhandle(fd); | |
184 | h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); | |
185 | if (h == NULL) | |
186 | return MAP_FAILED; | |
187 | ||
188 | if (prot & PROT_WRITE) | |
189 | dwDesiredAccess = FILE_MAP_WRITE; | |
190 | else | |
191 | dwDesiredAccess = FILE_MAP_READ; | |
192 | if (prot & PROT_EXEC) | |
193 | dwDesiredAccess |= FILE_MAP_EXECUTE; | |
194 | if (flags & MAP_PRIVATE) | |
195 | dwDesiredAccess |= FILE_MAP_COPY; | |
196 | ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); | |
197 | if (ret == NULL) { | |
198 | CloseHandle(h); | |
199 | ret = MAP_FAILED; | |
200 | } | |
201 | return ret; | |
e8b61936 | 202 | } |
2446536b | 203 | |
6f1133bc | 204 | static void munmap(void *addr, size_t length) |
e8b61936 | 205 | { |
eac0e638 | 206 | UnmapViewOfFile(addr); |
207 | /* ruh-ro, we leaked handle from CreateFileMapping() ... */ | |
e8b61936 | 208 | } |
f18d0e08 | 209 | #elif defined(NO_MMAP) |
5345c2b9 | 210 | #define PROT_EXEC 0x04 |
f18d0e08 | 211 | #define MAP_FAILED 0 |
212 | #define PROT_READ 0 | |
213 | #define PROT_WRITE 0 | |
214 | #define MAP_PRIVATE 0 | |
215 | #define MAP_ANONYMOUS 0 | |
216 | ||
217 | void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off) | |
218 | { | |
219 | return malloc(len); | |
220 | } | |
221 | ||
222 | void munmap(void *base_addr, size_t len) | |
223 | { | |
224 | free(base_addr); | |
225 | } | |
226 | ||
227 | int mprotect(void *addr, size_t len, int prot) | |
228 | { | |
eac0e638 | 229 | /* stub - not really needed at this point since this codepath has no dynarecs */ |
f18d0e08 | 230 | return 0; |
231 | } | |
232 | ||
e8b61936 | 233 | #endif |
8e5639bc | 234 | |
235 | #ifndef MAP_ANONYMOUS | |
236 | #define MAP_ANONYMOUS MAP_ANON | |
237 | #endif | |
238 | ||
0c732676 | 239 | #ifdef _3DS |
240 | typedef struct | |
241 | { | |
242 | unsigned int requested_map; | |
243 | void* buffer; | |
244 | }pico_mmap_t; | |
245 | ||
246 | pico_mmap_t pico_mmaps[] = { | |
247 | {0x02000000, 0}, | |
248 | {0x06000000, 0}, | |
249 | {NULL, 0} | |
250 | }; | |
251 | ||
252 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) | |
253 | { | |
254 | (void)is_fixed; | |
255 | ||
256 | if (ctr_svchack_successful) | |
257 | { | |
258 | pico_mmap_t* pico_mmap; | |
259 | ||
260 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
261 | { | |
262 | if ((pico_mmap->requested_map == addr)) | |
263 | { | |
264 | unsigned int ptr_aligned, tmp; | |
265 | unsigned int currentHandle; | |
266 | unsigned int perm = 0b011; | |
267 | ||
268 | if (need_exec) | |
269 | perm = 0b111; | |
270 | ||
271 | size = (size + 0xFFF) & ~0xFFF; | |
272 | pico_mmap->buffer = malloc(size + 0x1000); | |
273 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
274 | ||
275 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
276 | ||
277 | if(svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, size, MEMOP_MAP, perm) < 0) | |
278 | { | |
279 | if (log_cb) | |
280 | log_cb(RETRO_LOG_ERROR, "could not map memory @0x%08X\n", pico_mmap->requested_map); | |
281 | exit(1); | |
282 | } | |
283 | ||
284 | svcCloseHandle(currentHandle); | |
285 | return (void*)pico_mmap->requested_map; | |
286 | } | |
287 | } | |
288 | } | |
289 | ||
290 | return malloc(size); | |
291 | } | |
292 | ||
293 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
294 | { | |
295 | if (ctr_svchack_successful) | |
296 | { | |
297 | pico_mmap_t* pico_mmap; | |
298 | ||
299 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
300 | { | |
301 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
302 | { | |
303 | unsigned int ptr_aligned; | |
304 | unsigned int currentHandle; | |
305 | void* tmp; | |
306 | ||
307 | oldsize = (oldsize + 0xFFF) & ~0xFFF; | |
308 | newsize = (newsize + 0xFFF) & ~0xFFF; | |
309 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
310 | ||
311 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
312 | ||
313 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, oldsize, MEMOP_UNMAP, 0b011); | |
314 | ||
315 | tmp = realloc(pico_mmap->buffer, newsize + 0x1000); | |
316 | if(!tmp) | |
317 | return NULL; | |
318 | ||
319 | pico_mmap->buffer = tmp; | |
320 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
321 | ||
322 | svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, newsize, MEMOP_MAP, 0x3); | |
323 | ||
324 | svcCloseHandle(currentHandle); | |
325 | ||
326 | return ptr; | |
327 | } | |
328 | } | |
329 | } | |
330 | ||
331 | return realloc(ptr, newsize); | |
332 | ||
333 | } | |
334 | void plat_munmap(void *ptr, size_t size) | |
335 | { | |
336 | if (ctr_svchack_successful) | |
337 | { | |
338 | pico_mmap_t* pico_mmap; | |
339 | ||
340 | for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) | |
341 | { | |
342 | if ((pico_mmap->requested_map == (unsigned int)ptr)) | |
343 | { | |
344 | unsigned int ptr_aligned; | |
345 | unsigned int currentHandle; | |
346 | ||
347 | size = (size + 0xFFF) & ~0xFFF; | |
348 | ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; | |
349 | ||
350 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
351 | ||
352 | svcControlProcessMemory(currentHandle, (void*)pico_mmap->requested_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0b011); | |
353 | ||
354 | svcCloseHandle(currentHandle); | |
355 | ||
356 | free(pico_mmap->buffer); | |
357 | pico_mmap->buffer = NULL; | |
358 | return; | |
359 | } | |
360 | } | |
361 | } | |
362 | ||
363 | free(ptr); | |
364 | } | |
365 | ||
366 | #else | |
e8b61936 | 367 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) |
368 | { | |
e8b61936 | 369 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; |
370 | void *req, *ret; | |
371 | ||
372 | req = (void *)addr; | |
373 | ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0); | |
374 | if (ret == MAP_FAILED) { | |
f5d4045b | 375 | if (log_cb) |
376 | log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno); | |
e8b61936 | 377 | return NULL; |
378 | } | |
379 | ||
380 | if (addr != 0 && ret != (void *)addr) { | |
f5d4045b | 381 | if (log_cb) |
382 | log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n", | |
383 | addr, ret); | |
e8b61936 | 384 | |
385 | if (is_fixed) { | |
386 | munmap(ret, size); | |
387 | return NULL; | |
388 | } | |
389 | } | |
2446536b | 390 | |
eac0e638 | 391 | return ret; |
2446536b | 392 | } |
393 | ||
394 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) | |
395 | { | |
8c8b7284 | 396 | #ifdef __linux__ |
eac0e638 | 397 | void *ret = mremap(ptr, oldsize, newsize, 0); |
398 | if (ret == MAP_FAILED) | |
399 | return NULL; | |
2446536b | 400 | |
eac0e638 | 401 | return ret; |
8c8b7284 | 402 | #else |
eac0e638 | 403 | void *tmp, *ret; |
404 | size_t preserve_size; | |
405 | ||
406 | preserve_size = oldsize; | |
407 | if (preserve_size > newsize) | |
408 | preserve_size = newsize; | |
409 | tmp = malloc(preserve_size); | |
410 | if (tmp == NULL) | |
411 | return NULL; | |
412 | memcpy(tmp, ptr, preserve_size); | |
413 | ||
414 | munmap(ptr, oldsize); | |
415 | ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE, | |
416 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
417 | if (ret == MAP_FAILED) { | |
418 | free(tmp); | |
419 | return NULL; | |
420 | } | |
421 | memcpy(ret, tmp, preserve_size); | |
422 | free(tmp); | |
423 | return ret; | |
8c8b7284 | 424 | #endif |
2446536b | 425 | } |
426 | ||
427 | void plat_munmap(void *ptr, size_t size) | |
428 | { | |
eac0e638 | 429 | if (ptr != NULL) |
430 | munmap(ptr, size); | |
2446536b | 431 | } |
0c732676 | 432 | #endif |
2446536b | 433 | |
c25d78ee | 434 | int plat_mem_set_exec(void *ptr, size_t size) |
435 | { | |
e8b61936 | 436 | #ifdef _WIN32 |
437 | int ret = VirtualProtect(ptr,size,PAGE_EXECUTE_READWRITE,0); | |
f5d4045b | 438 | if (ret == 0 && log_cb) |
439 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, 0); | |
0c732676 | 440 | #elif defined(_3DS) |
441 | int ret = -1; | |
442 | if (ctr_svchack_successful) | |
443 | { | |
444 | unsigned int currentHandle; | |
445 | svcDuplicateHandle(¤tHandle, 0xFFFF8001); | |
446 | ret = svcControlProcessMemory(currentHandle, ptr, 0x0, | |
447 | size, MEMOP_PROT, 0b111); | |
448 | svcCloseHandle(currentHandle); | |
449 | ctr_flush_invalidate_cache(); | |
450 | ||
451 | } | |
452 | else | |
453 | { | |
454 | if (log_cb) | |
455 | log_cb(RETRO_LOG_ERROR, "plat_mem_set_exec called with no svcControlProcessMemory access\n"); | |
456 | exit(1); | |
457 | } | |
458 | ||
88f7643f | 459 | #elif defined(VITA) |
460 | int ret = sceKernelOpenVMDomain(); | |
e8b61936 | 461 | #else |
462 | int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); | |
f5d4045b | 463 | if (ret != 0 && log_cb) |
464 | log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno); | |
e8b61936 | 465 | #endif |
eac0e638 | 466 | return ret; |
c25d78ee | 467 | } |
468 | ||
2446536b | 469 | void emu_video_mode_change(int start_line, int line_count, int is_32cols) |
470 | { | |
eac0e638 | 471 | memset(vout_buf, 0, 320 * 240 * 2); |
472 | vout_width = is_32cols ? 256 : 320; | |
473 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
51c08950 | 474 | |
eac0e638 | 475 | vout_height = line_count; |
476 | vout_offset = vout_width * start_line; | |
e1360c66 D |
477 | |
478 | // Update the geometry | |
479 | struct retro_system_av_info av_info; | |
480 | retro_get_system_av_info(&av_info); | |
481 | environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); | |
2446536b | 482 | } |
483 | ||
484 | void emu_32x_startup(void) | |
485 | { | |
2446536b | 486 | } |
487 | ||
2446536b | 488 | void lprintf(const char *fmt, ...) |
489 | { | |
c681e48d | 490 | char buffer[256]; |
491 | va_list ap; | |
492 | va_start(ap, fmt); | |
493 | vsprintf(buffer, fmt, ap); | |
f5d4045b | 494 | /* TODO - add 'level' param for warning/error messages? */ |
495 | if (log_cb) | |
bd7b09f4 | 496 | log_cb(RETRO_LOG_INFO, "%s", buffer); |
0c732676 | 497 | va_end(ap); |
2446536b | 498 | } |
499 | ||
2446536b | 500 | /* libretro */ |
501 | void retro_set_environment(retro_environment_t cb) | |
502 | { | |
eac0e638 | 503 | static const struct retro_variable vars[] = { |
48582bcf D |
504 | { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" }, |
505 | { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" }, | |
506 | { "picodrive_sprlim", "No sprite limit; disabled|enabled" }, | |
507 | { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" }, | |
508 | { "picodrive_region", "Region; Auto|Japan NTSC|Japan PAL|US|Europe" }, | |
0fa9e859 | 509 | { "picodrive_region_fps", "Region FPS; Auto|NTSC|PAL" }, |
e1360c66 | 510 | { "picodrive_aspect", "Core-provided aspect ratio; PAR|4/3|CRT" }, |
0185b677 | 511 | #ifdef DRC_SH2 |
eac0e638 | 512 | { "picodrive_drc", "Dynamic recompilers; enabled|disabled" }, |
0185b677 | 513 | #endif |
eac0e638 | 514 | { NULL, NULL }, |
515 | }; | |
2446536b | 516 | |
eac0e638 | 517 | environ_cb = cb; |
2446536b | 518 | |
eac0e638 | 519 | cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars); |
2446536b | 520 | } |
521 | ||
522 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } | |
523 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } | |
524 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } | |
525 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } | |
526 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } | |
527 | ||
528 | unsigned retro_api_version(void) | |
529 | { | |
eac0e638 | 530 | return RETRO_API_VERSION; |
2446536b | 531 | } |
532 | ||
533 | void retro_set_controller_port_device(unsigned port, unsigned device) | |
534 | { | |
535 | } | |
536 | ||
537 | void retro_get_system_info(struct retro_system_info *info) | |
538 | { | |
eac0e638 | 539 | memset(info, 0, sizeof(*info)); |
540 | info->library_name = "PicoDrive"; | |
541 | info->library_version = VERSION; | |
542 | info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms"; | |
543 | info->need_fullpath = true; | |
2446536b | 544 | } |
545 | ||
546 | void retro_get_system_av_info(struct retro_system_av_info *info) | |
547 | { | |
eac0e638 | 548 | memset(info, 0, sizeof(*info)); |
549 | info->timing.fps = Pico.m.pal ? 50 : 60; | |
550 | info->timing.sample_rate = 44100; | |
e1360c66 | 551 | info->geometry.base_width = vout_width; |
eac0e638 | 552 | info->geometry.base_height = vout_height; |
e1360c66 D |
553 | info->geometry.max_width = vout_width; |
554 | info->geometry.max_height = vout_height; | |
555 | ||
556 | float common_width = vout_width; | |
557 | if (user_vout_width != 0) | |
558 | common_width = user_vout_width; | |
559 | ||
560 | info->geometry.aspect_ratio = common_width / vout_height; | |
2446536b | 561 | } |
562 | ||
86b38dc4 | 563 | /* savestates */ |
564 | struct savestate_state { | |
eac0e638 | 565 | const char *load_buf; |
566 | char *save_buf; | |
567 | size_t size; | |
568 | size_t pos; | |
86b38dc4 | 569 | }; |
570 | ||
571 | size_t state_read(void *p, size_t size, size_t nmemb, void *file) | |
572 | { | |
eac0e638 | 573 | struct savestate_state *state = file; |
574 | size_t bsize = size * nmemb; | |
86b38dc4 | 575 | |
eac0e638 | 576 | if (state->pos + bsize > state->size) { |
f5d4045b | 577 | if (log_cb) |
578 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
579 | state->pos + bsize, state->size); | |
eac0e638 | 580 | bsize = state->size - state->pos; |
581 | if ((int)bsize <= 0) | |
582 | return 0; | |
583 | } | |
584 | ||
585 | memcpy(p, state->load_buf + state->pos, bsize); | |
586 | state->pos += bsize; | |
587 | return bsize; | |
86b38dc4 | 588 | } |
589 | ||
590 | size_t state_write(void *p, size_t size, size_t nmemb, void *file) | |
591 | { | |
eac0e638 | 592 | struct savestate_state *state = file; |
593 | size_t bsize = size * nmemb; | |
86b38dc4 | 594 | |
eac0e638 | 595 | if (state->pos + bsize > state->size) { |
f5d4045b | 596 | if (log_cb) |
597 | log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", | |
598 | state->pos + bsize, state->size); | |
eac0e638 | 599 | bsize = state->size - state->pos; |
600 | if ((int)bsize <= 0) | |
601 | return 0; | |
602 | } | |
603 | ||
604 | memcpy(state->save_buf + state->pos, p, bsize); | |
605 | state->pos += bsize; | |
606 | return bsize; | |
86b38dc4 | 607 | } |
608 | ||
609 | size_t state_skip(void *p, size_t size, size_t nmemb, void *file) | |
610 | { | |
eac0e638 | 611 | struct savestate_state *state = file; |
612 | size_t bsize = size * nmemb; | |
86b38dc4 | 613 | |
eac0e638 | 614 | state->pos += bsize; |
615 | return bsize; | |
86b38dc4 | 616 | } |
617 | ||
618 | size_t state_eof(void *file) | |
619 | { | |
eac0e638 | 620 | struct savestate_state *state = file; |
86b38dc4 | 621 | |
eac0e638 | 622 | return state->pos >= state->size; |
86b38dc4 | 623 | } |
624 | ||
625 | int state_fseek(void *file, long offset, int whence) | |
626 | { | |
eac0e638 | 627 | struct savestate_state *state = file; |
628 | ||
629 | switch (whence) { | |
630 | case SEEK_SET: | |
631 | state->pos = offset; | |
632 | break; | |
633 | case SEEK_CUR: | |
634 | state->pos += offset; | |
635 | break; | |
636 | case SEEK_END: | |
637 | state->pos = state->size + offset; | |
638 | break; | |
639 | } | |
640 | return (int)state->pos; | |
86b38dc4 | 641 | } |
642 | ||
643 | /* savestate sizes vary wildly depending if cd/32x or | |
644 | * carthw is active, so run the whole thing to get size */ | |
eac0e638 | 645 | size_t retro_serialize_size(void) |
646 | { | |
647 | struct savestate_state state = { 0, }; | |
648 | int ret; | |
86b38dc4 | 649 | |
eac0e638 | 650 | ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek); |
651 | if (ret != 0) | |
652 | return 0; | |
86b38dc4 | 653 | |
eac0e638 | 654 | return state.pos; |
2446536b | 655 | } |
656 | ||
657 | bool retro_serialize(void *data, size_t size) | |
eac0e638 | 658 | { |
659 | struct savestate_state state = { 0, }; | |
660 | int ret; | |
86b38dc4 | 661 | |
eac0e638 | 662 | state.save_buf = data; |
663 | state.size = size; | |
664 | state.pos = 0; | |
86b38dc4 | 665 | |
eac0e638 | 666 | ret = PicoStateFP(&state, 1, NULL, state_write, |
667 | NULL, state_fseek); | |
668 | return ret == 0; | |
2446536b | 669 | } |
670 | ||
671 | bool retro_unserialize(const void *data, size_t size) | |
672 | { | |
eac0e638 | 673 | struct savestate_state state = { 0, }; |
674 | int ret; | |
86b38dc4 | 675 | |
eac0e638 | 676 | state.load_buf = data; |
677 | state.size = size; | |
678 | state.pos = 0; | |
86b38dc4 | 679 | |
eac0e638 | 680 | ret = PicoStateFP(&state, 0, state_read, NULL, |
681 | state_eof, state_fseek); | |
682 | return ret == 0; | |
2446536b | 683 | } |
684 | ||
685 | /* cheats - TODO */ | |
686 | void retro_cheat_reset(void) | |
687 | { | |
688 | } | |
689 | ||
690 | void retro_cheat_set(unsigned index, bool enabled, const char *code) | |
691 | { | |
692 | } | |
693 | ||
694 | /* multidisk support */ | |
695 | static bool disk_ejected; | |
696 | static unsigned int disk_current_index; | |
697 | static unsigned int disk_count; | |
698 | static struct disks_state { | |
eac0e638 | 699 | char *fname; |
2446536b | 700 | } disks[8]; |
701 | ||
702 | static bool disk_set_eject_state(bool ejected) | |
703 | { | |
eac0e638 | 704 | // TODO? |
705 | disk_ejected = ejected; | |
706 | return true; | |
2446536b | 707 | } |
708 | ||
709 | static bool disk_get_eject_state(void) | |
710 | { | |
eac0e638 | 711 | return disk_ejected; |
2446536b | 712 | } |
713 | ||
714 | static unsigned int disk_get_image_index(void) | |
715 | { | |
eac0e638 | 716 | return disk_current_index; |
2446536b | 717 | } |
718 | ||
719 | static bool disk_set_image_index(unsigned int index) | |
720 | { | |
eac0e638 | 721 | enum cd_img_type cd_type; |
722 | int ret; | |
2446536b | 723 | |
eac0e638 | 724 | if (index >= sizeof(disks) / sizeof(disks[0])) |
725 | return false; | |
2446536b | 726 | |
eac0e638 | 727 | if (disks[index].fname == NULL) { |
f5d4045b | 728 | if (log_cb) |
729 | log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index); | |
2446536b | 730 | |
eac0e638 | 731 | // RetroArch specifies "no disk" with index == count, |
732 | // so don't fail here.. | |
733 | disk_current_index = index; | |
734 | return true; | |
735 | } | |
2446536b | 736 | |
f5d4045b | 737 | if (log_cb) |
738 | log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index, | |
739 | disks[index].fname); | |
2446536b | 740 | |
eac0e638 | 741 | ret = -1; |
742 | cd_type = PicoCdCheck(disks[index].fname, NULL); | |
743 | if (cd_type != CIT_NOT_CD) | |
744 | ret = cdd_load(disks[index].fname, cd_type); | |
745 | if (ret != 0) { | |
f5d4045b | 746 | if (log_cb) |
747 | log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n"); | |
eac0e638 | 748 | return 0; |
749 | } | |
2446536b | 750 | |
eac0e638 | 751 | disk_current_index = index; |
752 | return true; | |
2446536b | 753 | } |
754 | ||
755 | static unsigned int disk_get_num_images(void) | |
756 | { | |
eac0e638 | 757 | return disk_count; |
2446536b | 758 | } |
759 | ||
760 | static bool disk_replace_image_index(unsigned index, | |
eac0e638 | 761 | const struct retro_game_info *info) |
2446536b | 762 | { |
eac0e638 | 763 | bool ret = true; |
2446536b | 764 | |
eac0e638 | 765 | if (index >= sizeof(disks) / sizeof(disks[0])) |
766 | return false; | |
2446536b | 767 | |
eac0e638 | 768 | if (disks[index].fname != NULL) |
769 | free(disks[index].fname); | |
770 | disks[index].fname = NULL; | |
2446536b | 771 | |
eac0e638 | 772 | if (info != NULL) { |
773 | disks[index].fname = strdup(info->path); | |
774 | if (index == disk_current_index) | |
775 | ret = disk_set_image_index(index); | |
776 | } | |
2446536b | 777 | |
eac0e638 | 778 | return ret; |
2446536b | 779 | } |
780 | ||
781 | static bool disk_add_image_index(void) | |
782 | { | |
eac0e638 | 783 | if (disk_count >= sizeof(disks) / sizeof(disks[0])) |
784 | return false; | |
2446536b | 785 | |
eac0e638 | 786 | disk_count++; |
787 | return true; | |
2446536b | 788 | } |
789 | ||
790 | static struct retro_disk_control_callback disk_control = { | |
eac0e638 | 791 | disk_set_eject_state, |
792 | disk_get_eject_state, | |
793 | disk_get_image_index, | |
794 | disk_set_image_index, | |
795 | disk_get_num_images, | |
796 | disk_replace_image_index, | |
797 | disk_add_image_index, | |
2446536b | 798 | }; |
799 | ||
800 | static void disk_tray_open(void) | |
801 | { | |
f5d4045b | 802 | if (log_cb) |
803 | log_cb(RETRO_LOG_INFO, "cd tray open\n"); | |
eac0e638 | 804 | disk_ejected = 1; |
2446536b | 805 | } |
806 | ||
807 | static void disk_tray_close(void) | |
808 | { | |
f5d4045b | 809 | if (log_cb) |
810 | log_cb(RETRO_LOG_INFO, "cd tray close\n"); | |
eac0e638 | 811 | disk_ejected = 0; |
2446536b | 812 | } |
813 | ||
814 | ||
815 | static const char * const biosfiles_us[] = { | |
eac0e638 | 816 | "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U" |
2446536b | 817 | }; |
818 | static const char * const biosfiles_eu[] = { | |
eac0e638 | 819 | "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E" |
2446536b | 820 | }; |
821 | static const char * const biosfiles_jp[] = { | |
eac0e638 | 822 | "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J" |
2446536b | 823 | }; |
824 | ||
825 | static void make_system_path(char *buf, size_t buf_size, | |
eac0e638 | 826 | const char *name, const char *ext) |
2446536b | 827 | { |
eac0e638 | 828 | const char *dir = NULL; |
829 | ||
830 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) { | |
831 | snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext); | |
832 | } | |
833 | else { | |
834 | snprintf(buf, buf_size, "%s%s", name, ext); | |
835 | } | |
2446536b | 836 | } |
837 | ||
838 | static const char *find_bios(int *region, const char *cd_fname) | |
839 | { | |
eac0e638 | 840 | const char * const *files; |
841 | static char path[256]; | |
842 | int i, count; | |
843 | FILE *f = NULL; | |
844 | ||
845 | if (*region == 4) { // US | |
846 | files = biosfiles_us; | |
847 | count = sizeof(biosfiles_us) / sizeof(char *); | |
848 | } else if (*region == 8) { // EU | |
849 | files = biosfiles_eu; | |
850 | count = sizeof(biosfiles_eu) / sizeof(char *); | |
851 | } else if (*region == 1 || *region == 2) { | |
852 | files = biosfiles_jp; | |
853 | count = sizeof(biosfiles_jp) / sizeof(char *); | |
854 | } else { | |
855 | return NULL; | |
856 | } | |
857 | ||
858 | for (i = 0; i < count; i++) | |
859 | { | |
860 | make_system_path(path, sizeof(path), files[i], ".bin"); | |
861 | f = fopen(path, "rb"); | |
862 | if (f != NULL) | |
863 | break; | |
864 | ||
865 | make_system_path(path, sizeof(path), files[i], ".zip"); | |
866 | f = fopen(path, "rb"); | |
867 | if (f != NULL) | |
868 | break; | |
869 | } | |
870 | ||
871 | if (f != NULL) { | |
f5d4045b | 872 | if (log_cb) |
873 | log_cb(RETRO_LOG_INFO, "using bios: %s\n", path); | |
eac0e638 | 874 | fclose(f); |
875 | return path; | |
876 | } | |
2446536b | 877 | |
eac0e638 | 878 | return NULL; |
2446536b | 879 | } |
880 | ||
6d0aaeaf | 881 | static void sram_reset() |
882 | { | |
883 | SRam.data = NULL; | |
884 | SRam.start = 0; | |
885 | SRam.end = 0; | |
886 | SRam.flags = '\0'; | |
887 | SRam.unused2 = '\0'; | |
888 | SRam.changed = '\0' ; | |
889 | SRam.eeprom_type = '\0'; | |
890 | SRam.unused3 = '\0'; | |
891 | SRam.eeprom_bit_cl = '\0'; | |
892 | SRam.eeprom_bit_in = '\0'; | |
893 | SRam.eeprom_bit_out = '\0'; | |
894 | SRam.size = 0; | |
895 | } | |
896 | ||
2446536b | 897 | bool retro_load_game(const struct retro_game_info *info) |
898 | { | |
eac0e638 | 899 | enum media_type_e media_type; |
900 | static char carthw_path[256]; | |
901 | size_t i; | |
2446536b | 902 | |
a1f2e1b1 | 903 | struct retro_input_descriptor desc[] = { |
904 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
905 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
906 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
907 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
908 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
909 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
910 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
911 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
912 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
913 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
17d4733d D |
914 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, |
915 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
a1f2e1b1 | 916 | |
917 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
918 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
919 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
920 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
921 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, | |
922 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, | |
923 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, | |
924 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, | |
925 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, | |
926 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, | |
17d4733d D |
927 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, |
928 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, | |
a1f2e1b1 | 929 | |
930 | { 0 }, | |
931 | }; | |
932 | ||
17d4733d D |
933 | struct retro_input_descriptor desc_sms[] = { |
934 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
935 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
936 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
937 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
0fa9e859 D |
938 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, |
939 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, | |
940 | { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, | |
17d4733d D |
941 | |
942 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, | |
943 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, | |
944 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, | |
945 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, | |
0fa9e859 D |
946 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, |
947 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, | |
948 | { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, | |
17d4733d D |
949 | |
950 | { 0 }, | |
951 | }; | |
a1f2e1b1 | 952 | |
6d0aaeaf | 953 | sram_reset(); |
954 | ||
eac0e638 | 955 | enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; |
956 | if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { | |
f5d4045b | 957 | if (log_cb) |
958 | log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n"); | |
eac0e638 | 959 | return false; |
960 | } | |
2446536b | 961 | |
eac0e638 | 962 | if (info == NULL || info->path == NULL) { |
f5d4045b | 963 | if (log_cb) |
964 | log_cb(RETRO_LOG_ERROR, "info->path required\n"); | |
eac0e638 | 965 | return false; |
966 | } | |
2446536b | 967 | |
eac0e638 | 968 | for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) { |
969 | if (disks[i].fname != NULL) { | |
970 | free(disks[i].fname); | |
971 | disks[i].fname = NULL; | |
972 | } | |
973 | } | |
2446536b | 974 | |
eac0e638 | 975 | disk_current_index = 0; |
976 | disk_count = 1; | |
977 | disks[0].fname = strdup(info->path); | |
2446536b | 978 | |
eac0e638 | 979 | make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg"); |
2446536b | 980 | |
eac0e638 | 981 | media_type = PicoLoadMedia(info->path, carthw_path, |
982 | find_bios, NULL); | |
2446536b | 983 | |
eac0e638 | 984 | switch (media_type) { |
985 | case PM_BAD_DETECT: | |
f5d4045b | 986 | if (log_cb) |
987 | log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n"); | |
eac0e638 | 988 | return false; |
989 | case PM_BAD_CD: | |
f5d4045b | 990 | if (log_cb) |
991 | log_cb(RETRO_LOG_ERROR, "Invalid CD image\n"); | |
eac0e638 | 992 | return false; |
993 | case PM_BAD_CD_NO_BIOS: | |
f5d4045b | 994 | if (log_cb) |
995 | log_cb(RETRO_LOG_ERROR, "Missing BIOS\n"); | |
eac0e638 | 996 | return false; |
997 | case PM_ERROR: | |
f5d4045b | 998 | if (log_cb) |
999 | log_cb(RETRO_LOG_ERROR, "Load error\n"); | |
eac0e638 | 1000 | return false; |
1001 | default: | |
1002 | break; | |
1003 | } | |
2446536b | 1004 | |
17d4733d D |
1005 | if (media_type == PM_MARK3) |
1006 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc_sms); | |
1007 | else | |
1008 | environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); | |
1009 | ||
eac0e638 | 1010 | PicoLoopPrepare(); |
2446536b | 1011 | |
eac0e638 | 1012 | PicoWriteSound = snd_write; |
1013 | memset(sndBuffer, 0, sizeof(sndBuffer)); | |
1014 | PsndOut = sndBuffer; | |
1015 | PsndRerate(0); | |
2446536b | 1016 | |
eac0e638 | 1017 | return true; |
2446536b | 1018 | } |
1019 | ||
1020 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) | |
1021 | { | |
eac0e638 | 1022 | return false; |
2446536b | 1023 | } |
1024 | ||
eac0e638 | 1025 | void retro_unload_game(void) |
2446536b | 1026 | { |
1027 | } | |
1028 | ||
1029 | unsigned retro_get_region(void) | |
1030 | { | |
eac0e638 | 1031 | return Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; |
2446536b | 1032 | } |
1033 | ||
c3e69f81 | 1034 | void *retro_get_memory_data(unsigned type) |
2446536b | 1035 | { |
c3e69f81 | 1036 | uint8_t* data; |
2446536b | 1037 | |
c3e69f81 DS |
1038 | switch(type) |
1039 | { | |
1040 | case RETRO_MEMORY_SAVE_RAM: | |
1041 | if (PicoAHW & PAHW_MCD) | |
1042 | data = Pico_mcd->bram; | |
1043 | else | |
1044 | data = SRam.data; | |
1045 | break; | |
1046 | case RETRO_MEMORY_SYSTEM_RAM: | |
1047 | if (PicoAHW & PAHW_SMS) | |
1048 | data = Pico.vramb; | |
1049 | else | |
1050 | data = Pico.ram; | |
1051 | break; | |
1052 | default: | |
1053 | data = NULL; | |
1054 | break; | |
1055 | } | |
1056 | ||
1057 | return data; | |
2446536b | 1058 | } |
1059 | ||
c3e69f81 | 1060 | size_t retro_get_memory_size(unsigned type) |
2446536b | 1061 | { |
eac0e638 | 1062 | unsigned int i; |
1063 | int sum; | |
c3e69f81 DS |
1064 | |
1065 | switch(type) | |
1066 | { | |
1067 | case RETRO_MEMORY_SAVE_RAM: | |
1068 | if (PicoAHW & PAHW_MCD) | |
1069 | // bram | |
1070 | return 0x2000; | |
1071 | ||
1072 | if (Pico.m.frame_count == 0) | |
1073 | return SRam.size; | |
1074 | ||
1075 | // if game doesn't write to sram, don't report it to | |
1076 | // libretro so that RA doesn't write out zeroed .srm | |
1077 | for (i = 0, sum = 0; i < SRam.size; i++) | |
1078 | sum |= SRam.data[i]; | |
1079 | ||
1080 | return (sum != 0) ? SRam.size : 0; | |
1081 | ||
1082 | case RETRO_MEMORY_SYSTEM_RAM: | |
1083 | if (PicoAHW & PAHW_SMS) | |
1084 | return sizeof(Pico.vramb); | |
1085 | else | |
1086 | return sizeof(Pico.ram); | |
1087 | ||
1088 | default: | |
1089 | return 0; | |
1090 | } | |
1091 | ||
2446536b | 1092 | } |
1093 | ||
1094 | void retro_reset(void) | |
1095 | { | |
eac0e638 | 1096 | PicoReset(); |
2446536b | 1097 | } |
1098 | ||
1099 | static const unsigned short retro_pico_map[] = { | |
eac0e638 | 1100 | 1 << GBTN_B, |
1101 | 1 << GBTN_A, | |
1102 | 1 << GBTN_MODE, | |
1103 | 1 << GBTN_START, | |
1104 | 1 << GBTN_UP, | |
1105 | 1 << GBTN_DOWN, | |
1106 | 1 << GBTN_LEFT, | |
1107 | 1 << GBTN_RIGHT, | |
1108 | 1 << GBTN_C, | |
1109 | 1 << GBTN_Y, | |
1110 | 1 << GBTN_X, | |
1111 | 1 << GBTN_Z, | |
2446536b | 1112 | }; |
1113 | #define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0])) | |
1114 | ||
1115 | static void snd_write(int len) | |
1116 | { | |
eac0e638 | 1117 | audio_batch_cb(PsndOut, len / 4); |
2446536b | 1118 | } |
1119 | ||
531a8f38 | 1120 | static enum input_device input_name_to_val(const char *name) |
1121 | { | |
eac0e638 | 1122 | if (strcmp(name, "3 button pad") == 0) |
1123 | return PICO_INPUT_PAD_3BTN; | |
1124 | if (strcmp(name, "6 button pad") == 0) | |
1125 | return PICO_INPUT_PAD_6BTN; | |
1126 | if (strcmp(name, "None") == 0) | |
1127 | return PICO_INPUT_NOTHING; | |
531a8f38 | 1128 | |
f5d4045b | 1129 | if (log_cb) |
1130 | log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name); | |
eac0e638 | 1131 | return PICO_INPUT_PAD_3BTN; |
531a8f38 | 1132 | } |
1133 | ||
1134 | static void update_variables(void) | |
1135 | { | |
eac0e638 | 1136 | struct retro_variable var; |
1137 | ||
1138 | var.value = NULL; | |
1139 | var.key = "picodrive_input1"; | |
1140 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1141 | PicoSetInputDevice(0, input_name_to_val(var.value)); | |
1142 | ||
1143 | var.value = NULL; | |
1144 | var.key = "picodrive_input2"; | |
1145 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | |
1146 | PicoSetInputDevice(1, input_name_to_val(var.value)); | |
1147 | ||
1148 | var.value = NULL; | |
1149 | var.key = "picodrive_sprlim"; | |
1150 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1151 | if (strcmp(var.value, "enabled") == 0) | |
1152 | PicoOpt |= POPT_DIS_SPRITE_LIM; | |
1153 | else | |
1154 | PicoOpt &= ~POPT_DIS_SPRITE_LIM; | |
1155 | } | |
1156 | ||
1157 | var.value = NULL; | |
1158 | var.key = "picodrive_ramcart"; | |
1159 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1160 | if (strcmp(var.value, "enabled") == 0) | |
1161 | PicoOpt |= POPT_EN_MCD_RAMCART; | |
1162 | else | |
1163 | PicoOpt &= ~POPT_EN_MCD_RAMCART; | |
1164 | } | |
1165 | ||
48582bcf | 1166 | int OldPicoRegionOverride = PicoRegionOverride; |
eac0e638 | 1167 | var.value = NULL; |
1168 | var.key = "picodrive_region"; | |
1169 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1170 | if (strcmp(var.value, "Auto") == 0) | |
1171 | PicoRegionOverride = 0; | |
1172 | else if (strcmp(var.value, "Japan NTSC") == 0) | |
1173 | PicoRegionOverride = 1; | |
1174 | else if (strcmp(var.value, "Japan PAL") == 0) | |
1175 | PicoRegionOverride = 2; | |
1176 | else if (strcmp(var.value, "US") == 0) | |
1177 | PicoRegionOverride = 4; | |
1178 | else if (strcmp(var.value, "Europe") == 0) | |
1179 | PicoRegionOverride = 8; | |
1180 | } | |
b38bccea | 1181 | |
48582bcf D |
1182 | int OldPicoRegionFPSOverride = PicoRegionFPSOverride; |
1183 | var.value = NULL; | |
1184 | var.key = "picodrive_region_fps"; | |
1185 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1186 | if (strcmp(var.value, "Auto") == 0) | |
1187 | PicoRegionFPSOverride = 0; | |
1188 | else if (strcmp(var.value, "NTSC") == 0) | |
1189 | PicoRegionFPSOverride = 1; | |
1190 | else if (strcmp(var.value, "PAL") == 0) | |
1191 | PicoRegionFPSOverride = 2; | |
1192 | } | |
17d4733d | 1193 | |
48582bcf D |
1194 | // Update region, fps and sound flags if needed |
1195 | if (PicoRegionOverride != OldPicoRegionOverride || | |
1196 | PicoRegionFPSOverride != OldPicoRegionFPSOverride) | |
1197 | { | |
1198 | PicoDetectRegion(); | |
1199 | PicoLoopPrepare(); | |
1200 | PsndRerate(1); | |
1201 | } | |
17d4733d | 1202 | |
e1360c66 D |
1203 | float old_user_vout_width = user_vout_width; |
1204 | var.value = NULL; | |
1205 | var.key = "picodrive_aspect"; | |
1206 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1207 | if (strcmp(var.value, "4/3") == 0) | |
1208 | user_vout_width = VOUT_4_3; | |
1209 | else if (strcmp(var.value, "CRT") == 0) | |
1210 | user_vout_width = VOUT_CRT; | |
1211 | else | |
1212 | user_vout_width = VOUT_PAR; | |
1213 | } | |
1214 | ||
1215 | if (user_vout_width != old_user_vout_width) | |
1216 | { | |
1217 | // Update the geometry | |
1218 | struct retro_system_av_info av_info; | |
1219 | retro_get_system_av_info(&av_info); | |
1220 | environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); | |
1221 | } | |
1222 | ||
0185b677 | 1223 | #ifdef DRC_SH2 |
eac0e638 | 1224 | var.value = NULL; |
1225 | var.key = "picodrive_drc"; | |
1226 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { | |
1227 | if (strcmp(var.value, "enabled") == 0) | |
1228 | PicoOpt |= POPT_EN_DRC; | |
1229 | else | |
1230 | PicoOpt &= ~POPT_EN_DRC; | |
1231 | } | |
0185b677 | 1232 | #endif |
0c732676 | 1233 | #ifdef _3DS |
1234 | if(!ctr_svchack_successful) | |
1235 | PicoOpt &= ~POPT_EN_DRC; | |
1236 | #endif | |
531a8f38 | 1237 | } |
1238 | ||
eac0e638 | 1239 | void retro_run(void) |
2446536b | 1240 | { |
eac0e638 | 1241 | bool updated = false; |
1242 | int pad, i; | |
2446536b | 1243 | |
eac0e638 | 1244 | if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) |
1245 | update_variables(); | |
2446536b | 1246 | |
0c732676 | 1247 | input_poll_cb(); |
2446536b | 1248 | |
eac0e638 | 1249 | PicoPad[0] = PicoPad[1] = 0; |
1250 | for (pad = 0; pad < 2; pad++) | |
1251 | for (i = 0; i < RETRO_PICO_MAP_LEN; i++) | |
1252 | if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i)) | |
1253 | PicoPad[pad] |= retro_pico_map[i]; | |
2446536b | 1254 | |
eac0e638 | 1255 | PicoFrame(); |
2446536b | 1256 | |
eac0e638 | 1257 | video_cb((short *)vout_buf + vout_offset, |
1258 | vout_width, vout_height, vout_width * 2); | |
2446536b | 1259 | } |
1260 | ||
2f832b7f | 1261 | static void check_system_specs(void) |
1262 | { | |
1263 | /* TODO - set different performance level for 32X - 6 for ARM dynarec, higher for interpreter core */ | |
1264 | unsigned level = 5; | |
1265 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
1266 | } | |
1267 | ||
2446536b | 1268 | void retro_init(void) |
1269 | { | |
f5d4045b | 1270 | struct retro_log_callback log; |
eac0e638 | 1271 | int level; |
2446536b | 1272 | |
eac0e638 | 1273 | level = 0; |
1274 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); | |
2446536b | 1275 | |
c681e48d | 1276 | if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) |
f5d4045b | 1277 | log_cb = log.log; |
c681e48d | 1278 | else |
1279 | log_cb = NULL; | |
f5d4045b | 1280 | |
eac0e638 | 1281 | environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); |
2446536b | 1282 | |
0c732676 | 1283 | #ifdef _3DS |
1284 | ctr_svchack_successful = ctr_svchack_init(); | |
88f7643f | 1285 | #elif defined(VITA) |
1286 | sceBlock = getVMBlock(); | |
0c732676 | 1287 | #endif |
1288 | ||
eac0e638 | 1289 | PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |
1290 | | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX | |
1291 | | POPT_EN_32X|POPT_EN_PWM | |
1292 | | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER; | |
720bfc5d | 1293 | #ifdef __arm__ |
0c732676 | 1294 | #ifdef _3DS |
1295 | if (ctr_svchack_successful) | |
1296 | #endif | |
1297 | PicoOpt |= POPT_EN_DRC; | |
720bfc5d | 1298 | #endif |
eac0e638 | 1299 | PsndRate = 44100; |
1300 | PicoAutoRgnOrder = 0x184; // US, EU, JP | |
2446536b | 1301 | |
eac0e638 | 1302 | vout_width = 320; |
0c732676 | 1303 | vout_height = 240; |
ad2ccfbc | 1304 | #ifdef _3DS |
1305 | vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80); | |
1306 | #else | |
0c732676 | 1307 | vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); |
ad2ccfbc | 1308 | #endif |
2446536b | 1309 | |
0c732676 | 1310 | PicoInit(); |
1311 | PicoDrawSetOutFormat(PDF_RGB555, 0); | |
1312 | PicoDrawSetOutBuf(vout_buf, vout_width * 2); | |
2446536b | 1313 | |
eac0e638 | 1314 | //PicoMessage = plat_status_msg_busy_next; |
1315 | PicoMCDopenTray = disk_tray_open; | |
1316 | PicoMCDcloseTray = disk_tray_close; | |
531a8f38 | 1317 | |
0c732676 | 1318 | update_variables(); |
2446536b | 1319 | } |
1320 | ||
1321 | void retro_deinit(void) | |
1322 | { | |
ad2ccfbc | 1323 | #ifdef _3DS |
1324 | linearFree(vout_buf); | |
1325 | #else | |
1326 | free(vout_buf); | |
1327 | #endif | |
1328 | vout_buf = NULL; | |
eac0e638 | 1329 | PicoExit(); |
2446536b | 1330 | } |