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