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libretro: satisfy vita's dynarec needs in a cleaner way
[picodrive.git] / platform / libretro / libretro.c
CommitLineData
7612bf90 1/*
2 * libretro core glue for PicoDrive
3 * (C) notaz, 2013
4 * (C) aliaspider, 2016
5 * (C) Daniel De Matteis, 2013
6 *
7 * This work is licensed under the terms of MAME license.
8 * See COPYING file in the top-level directory.
9 */
10
11#define _GNU_SOURCE 1 // mremap
12#include <stdio.h>
13#include <stdarg.h>
14#include <string.h>
15#ifndef _WIN32
16#ifndef NO_MMAP
17#include <sys/mman.h>
18#endif
19#else
20#include <io.h>
21#include <windows.h>
22#include <sys/types.h>
23#endif
24#include <errno.h>
25#ifdef __MACH__
26#include <libkern/OSCacheControl.h>
27#endif
28
29#ifdef _3DS
30#include "3ds/3ds_utils.h"
31#define MEMOP_MAP 4
32#define MEMOP_UNMAP 5
33#define MEMOP_PROT 6
34
35int svcDuplicateHandle(unsigned int* out, unsigned int original);
36int svcCloseHandle(unsigned int handle);
37int svcControlProcessMemory(unsigned int process, void* addr0, void* addr1,
38 unsigned int size, unsigned int type, unsigned int perm);
39void* linearMemAlign(size_t size, size_t alignment);
40void linearFree(void* mem);
41
42static int ctr_svchack_successful = 0;
43
44#elif defined(VITA)
45#define TARGET_SIZE_2 24 // 2^24 = 16 megabytes
46
47#include <psp2/kernel/sysmem.h>
48static int sceBlock;
49int getVMBlock();
50int _newlib_vm_size_user = 1 << TARGET_SIZE_2;
51
52#endif
53
54#include <pico/pico_int.h>
55#include <pico/state.h>
56#include <pico/patch.h>
57#include "../common/input_pico.h"
58#include "../common/version.h"
59#include "libretro.h"
60
61static retro_log_printf_t log_cb;
62static retro_video_refresh_t video_cb;
63static retro_input_poll_t input_poll_cb;
64static retro_input_state_t input_state_cb;
65static retro_environment_t environ_cb;
66static retro_audio_sample_batch_t audio_batch_cb;
67
68#define VOUT_MAX_WIDTH 320
69#define VOUT_MAX_HEIGHT 240
70
71static const float VOUT_PAR = 0.0;
72static const float VOUT_4_3 = (224.0f * (4.0f / 3.0f));
73static const float VOUT_CRT = (224.0f * 1.29911f);
74
75bool show_overscan = false;
76
77static void *vout_buf;
78static int vout_width, vout_height, vout_offset;
79static float user_vout_width = 0.0;
80
81#ifdef _MSC_VER
82static short sndBuffer[2*44100/50];
83#else
84static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
85#endif
86
87static void snd_write(int len);
88
89#ifdef _WIN32
90#define SLASH '\\'
91#else
92#define SLASH '/'
93#endif
94
95/* functions called by the core */
96
97void cache_flush_d_inval_i(void *start, void *end)
98{
99#ifdef __arm__
100 size_t len = (char *)end - (char *)start;
df925153 101 (void)len;
7612bf90 102#if defined(__BLACKBERRY_QNX__)
103 msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE);
104#elif defined(__MACH__)
105 sys_dcache_flush(start, len);
106 sys_icache_invalidate(start, len);
107#elif defined(_3DS)
108 ctr_flush_invalidate_cache();
109#elif defined(VITA)
110 sceKernelSyncVMDomain(sceBlock, start, len);
111#else
112 __clear_cache(start, end);
113#endif
114#endif
115}
116
117#ifdef _WIN32
118/* mmap() replacement for Windows
119 *
120 * Author: Mike Frysinger <vapier@gentoo.org>
121 * Placed into the public domain
122 */
123
124/* References:
125 * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx
126 * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx
127 * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx
128 * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx
129 */
130
131#define PROT_READ 0x1
132#define PROT_WRITE 0x2
133/* This flag is only available in WinXP+ */
134#ifdef FILE_MAP_EXECUTE
135#define PROT_EXEC 0x4
136#else
137#define PROT_EXEC 0x0
138#define FILE_MAP_EXECUTE 0
139#endif
140
141#define MAP_SHARED 0x01
142#define MAP_PRIVATE 0x02
143#define MAP_ANONYMOUS 0x20
144#define MAP_ANON MAP_ANONYMOUS
145#define MAP_FAILED ((void *) -1)
146
147#ifdef __USE_FILE_OFFSET64
148# define DWORD_HI(x) (x >> 32)
149# define DWORD_LO(x) ((x) & 0xffffffff)
150#else
151# define DWORD_HI(x) (0)
152# define DWORD_LO(x) (x)
153#endif
154
155static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
156{
157 uint32_t flProtect, dwDesiredAccess;
158 off_t end;
159 HANDLE mmap_fd, h;
160 void *ret;
161
162 if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
163 return MAP_FAILED;
164 if (fd == -1) {
165 if (!(flags & MAP_ANON) || offset)
166 return MAP_FAILED;
167 } else if (flags & MAP_ANON)
168 return MAP_FAILED;
169
170 if (prot & PROT_WRITE) {
171 if (prot & PROT_EXEC)
172 flProtect = PAGE_EXECUTE_READWRITE;
173 else
174 flProtect = PAGE_READWRITE;
175 } else if (prot & PROT_EXEC) {
176 if (prot & PROT_READ)
177 flProtect = PAGE_EXECUTE_READ;
178 else if (prot & PROT_EXEC)
179 flProtect = PAGE_EXECUTE;
180 } else
181 flProtect = PAGE_READONLY;
182
183 end = length + offset;
184
185 if (fd == -1)
186 mmap_fd = INVALID_HANDLE_VALUE;
187 else
188 mmap_fd = (HANDLE)_get_osfhandle(fd);
189 h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL);
190 if (h == NULL)
191 return MAP_FAILED;
192
193 if (prot & PROT_WRITE)
194 dwDesiredAccess = FILE_MAP_WRITE;
195 else
196 dwDesiredAccess = FILE_MAP_READ;
197 if (prot & PROT_EXEC)
198 dwDesiredAccess |= FILE_MAP_EXECUTE;
199 if (flags & MAP_PRIVATE)
200 dwDesiredAccess |= FILE_MAP_COPY;
201 ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length);
202 if (ret == NULL) {
203 CloseHandle(h);
204 ret = MAP_FAILED;
205 }
206 return ret;
207}
208
209static void munmap(void *addr, size_t length)
210{
211 UnmapViewOfFile(addr);
212 /* ruh-ro, we leaked handle from CreateFileMapping() ... */
213}
214#elif defined(NO_MMAP)
215#define PROT_EXEC 0x04
216#define MAP_FAILED 0
217#define PROT_READ 0
218#define PROT_WRITE 0
219#define MAP_PRIVATE 0
220#define MAP_ANONYMOUS 0
221
222void* mmap(void *desired_addr, size_t len, int mmap_prot, int mmap_flags, int fildes, size_t off)
223{
224 return malloc(len);
225}
226
227void munmap(void *base_addr, size_t len)
228{
229 free(base_addr);
230}
231
232int mprotect(void *addr, size_t len, int prot)
233{
234 /* stub - not really needed at this point since this codepath has no dynarecs */
235 return 0;
236}
237
238#endif
239
240#ifndef MAP_ANONYMOUS
241#define MAP_ANONYMOUS MAP_ANON
242#endif
243
244#ifdef _3DS
245typedef struct
246{
247 unsigned int requested_map;
248 void* buffer;
249}pico_mmap_t;
250
251pico_mmap_t pico_mmaps[] = {
252 {0x02000000, 0},
253 {0x06000000, 0},
254 {NULL, 0}
255};
256
257void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed)
258{
259 (void)is_fixed;
260
261 if (ctr_svchack_successful)
262 {
263 pico_mmap_t* pico_mmap;
264
265 for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++)
266 {
267 if ((pico_mmap->requested_map == addr))
268 {
269 unsigned int ptr_aligned, tmp;
270 unsigned int currentHandle;
271 unsigned int perm = 0b011;
272
273 if (need_exec)
274 perm = 0b111;
275
276 size = (size + 0xFFF) & ~0xFFF;
277 pico_mmap->buffer = malloc(size + 0x1000);
278 ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF;
279
280 svcDuplicateHandle(&currentHandle, 0xFFFF8001);
281
282 if(svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, size, MEMOP_MAP, perm) < 0)
283 {
284 if (log_cb)
285 log_cb(RETRO_LOG_ERROR, "could not map memory @0x%08X\n", pico_mmap->requested_map);
286 exit(1);
287 }
288
289 svcCloseHandle(currentHandle);
290 return (void*)pico_mmap->requested_map;
291 }
292 }
293 }
294
295 return malloc(size);
296}
297
298void *plat_mremap(void *ptr, size_t oldsize, size_t newsize)
299{
300 if (ctr_svchack_successful)
301 {
302 pico_mmap_t* pico_mmap;
303
304 for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++)
305 {
306 if ((pico_mmap->requested_map == (unsigned int)ptr))
307 {
308 unsigned int ptr_aligned;
309 unsigned int currentHandle;
310 void* tmp;
311
312 oldsize = (oldsize + 0xFFF) & ~0xFFF;
313 newsize = (newsize + 0xFFF) & ~0xFFF;
314 ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF;
315
316 svcDuplicateHandle(&currentHandle, 0xFFFF8001);
317
318 svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, oldsize, MEMOP_UNMAP, 0b011);
319
320 tmp = realloc(pico_mmap->buffer, newsize + 0x1000);
321 if(!tmp)
322 return NULL;
323
324 pico_mmap->buffer = tmp;
325 ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF;
326
327 svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, newsize, MEMOP_MAP, 0x3);
328
329 svcCloseHandle(currentHandle);
330
331 return ptr;
332 }
333 }
334 }
335
336 return realloc(ptr, newsize);
337
338}
339void plat_munmap(void *ptr, size_t size)
340{
341 if (ctr_svchack_successful)
342 {
343 pico_mmap_t* pico_mmap;
344
345 for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++)
346 {
347 if ((pico_mmap->requested_map == (unsigned int)ptr))
348 {
349 unsigned int ptr_aligned;
350 unsigned int currentHandle;
351
352 size = (size + 0xFFF) & ~0xFFF;
353 ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF;
354
355 svcDuplicateHandle(&currentHandle, 0xFFFF8001);
356
357 svcControlProcessMemory(currentHandle, (void*)pico_mmap->requested_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0b011);
358
359 svcCloseHandle(currentHandle);
360
361 free(pico_mmap->buffer);
362 pico_mmap->buffer = NULL;
363 return;
364 }
365 }
366 }
367
368 free(ptr);
369}
370
371#else
372void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed)
373{
374 int flags = MAP_PRIVATE | MAP_ANONYMOUS;
375 void *req, *ret;
376
377 req = (void *)addr;
378 ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
379 if (ret == MAP_FAILED) {
380 if (log_cb)
381 log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno);
382 return NULL;
383 }
384
385 if (addr != 0 && ret != (void *)addr) {
386 if (log_cb)
387 log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n",
388 addr, ret);
389
390 if (is_fixed) {
391 munmap(ret, size);
392 return NULL;
393 }
394 }
395
396 return ret;
397}
398
399void *plat_mremap(void *ptr, size_t oldsize, size_t newsize)
400{
401#ifdef __linux__
402 void *ret = mremap(ptr, oldsize, newsize, 0);
403 if (ret == MAP_FAILED)
404 return NULL;
405
406 return ret;
407#else
408 void *tmp, *ret;
409 size_t preserve_size;
410
411 preserve_size = oldsize;
412 if (preserve_size > newsize)
413 preserve_size = newsize;
414 tmp = malloc(preserve_size);
415 if (tmp == NULL)
416 return NULL;
417 memcpy(tmp, ptr, preserve_size);
418
419 munmap(ptr, oldsize);
420 ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE,
421 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
422 if (ret == MAP_FAILED) {
423 free(tmp);
424 return NULL;
425 }
426 memcpy(ret, tmp, preserve_size);
427 free(tmp);
428 return ret;
429#endif
430}
431
432void plat_munmap(void *ptr, size_t size)
433{
434 if (ptr != NULL)
435 munmap(ptr, size);
436}
437#endif
438
df925153 439// if NULL is returned, static buffer is used
440void *plat_mem_get_for_drc(size_t size)
441{
442 void *mem = NULL;
443#ifdef VITA
444 sceKernelGetMemBlockBase(sceBlock, &mem);
445#endif
446 return mem;
447}
448
7612bf90 449int plat_mem_set_exec(void *ptr, size_t size)
450{
df925153 451 int ret = -1;
7612bf90 452#ifdef _WIN32
df925153 453 ret = VirtualProtect(ptr, size, PAGE_EXECUTE_READWRITE, 0);
7612bf90 454 if (ret == 0 && log_cb)
df925153 455 log_cb(RETRO_LOG_ERROR, "VirtualProtect(%p, %d) failed: %d\n", ptr, (int)size,
456 GetLastError());
7612bf90 457#elif defined(_3DS)
7612bf90 458 if (ctr_svchack_successful)
459 {
460 unsigned int currentHandle;
461 svcDuplicateHandle(&currentHandle, 0xFFFF8001);
462 ret = svcControlProcessMemory(currentHandle, ptr, 0x0,
463 size, MEMOP_PROT, 0b111);
464 svcCloseHandle(currentHandle);
465 ctr_flush_invalidate_cache();
466
467 }
468 else
469 {
470 if (log_cb)
471 log_cb(RETRO_LOG_ERROR, "plat_mem_set_exec called with no svcControlProcessMemory access\n");
472 exit(1);
473 }
474
475#elif defined(VITA)
df925153 476 ret = sceKernelOpenVMDomain();
7612bf90 477#else
df925153 478 ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC);
7612bf90 479 if (ret != 0 && log_cb)
480 log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno);
481#endif
482 return ret;
483}
484
485void emu_video_mode_change(int start_line, int line_count, int is_32cols)
486{
487 memset(vout_buf, 0, 320 * 240 * 2);
488 vout_width = is_32cols ? 256 : 320;
489 PicoDrawSetOutBuf(vout_buf, vout_width * 2);
490 if (show_overscan == true) line_count += 16;
491 if (show_overscan == true) start_line -= 8;
492
493 vout_height = line_count;
494 vout_offset = vout_width * start_line;
495
496 // Update the geometry
497 struct retro_system_av_info av_info;
498 retro_get_system_av_info(&av_info);
499 environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info);
500}
501
502void emu_32x_startup(void)
503{
504}
505
506void lprintf(const char *fmt, ...)
507{
508 char buffer[256];
509 va_list ap;
510 va_start(ap, fmt);
511 vsprintf(buffer, fmt, ap);
512 /* TODO - add 'level' param for warning/error messages? */
513 if (log_cb)
514 log_cb(RETRO_LOG_INFO, "%s", buffer);
515 va_end(ap);
516}
517
518/* libretro */
519void retro_set_environment(retro_environment_t cb)
520{
521 static const struct retro_variable vars[] = {
522 { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" },
523 { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" },
524 { "picodrive_sprlim", "No sprite limit; disabled|enabled" },
525 { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" },
526 { "picodrive_region", "Region; Auto|Japan NTSC|Japan PAL|US|Europe" },
7612bf90 527 { "picodrive_aspect", "Core-provided aspect ratio; PAR|4/3|CRT" },
528 { "picodrive_overscan", "Show Overscan; disabled|enabled" },
529#ifdef DRC_SH2
530 { "picodrive_drc", "Dynamic recompilers; enabled|disabled" },
531#endif
532 { NULL, NULL },
533 };
534
535 environ_cb = cb;
536
537 cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars);
538}
539
540void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
541void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
542void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
543void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
544void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
545
546unsigned retro_api_version(void)
547{
548 return RETRO_API_VERSION;
549}
550
551void retro_set_controller_port_device(unsigned port, unsigned device)
552{
553}
554
555void retro_get_system_info(struct retro_system_info *info)
556{
557 memset(info, 0, sizeof(*info));
558 info->library_name = "PicoDrive";
559#ifndef GIT_VERSION
560#define GIT_VERSION ""
561#endif
562 info->library_version = VERSION GIT_VERSION;
563 info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms";
564 info->need_fullpath = true;
565}
566
567void retro_get_system_av_info(struct retro_system_av_info *info)
568{
569 memset(info, 0, sizeof(*info));
570 info->timing.fps = Pico.m.pal ? 50 : 60;
571 info->timing.sample_rate = 44100;
572 info->geometry.base_width = vout_width;
573 info->geometry.base_height = vout_height;
574 info->geometry.max_width = vout_width;
575 info->geometry.max_height = vout_height;
576
577 float common_width = vout_width;
578 if (user_vout_width != 0)
579 common_width = user_vout_width;
580
581 info->geometry.aspect_ratio = common_width / vout_height;
582}
583
584/* savestates */
585struct savestate_state {
586 const char *load_buf;
587 char *save_buf;
588 size_t size;
589 size_t pos;
590};
591
592size_t state_read(void *p, size_t size, size_t nmemb, void *file)
593{
594 struct savestate_state *state = file;
595 size_t bsize = size * nmemb;
596
597 if (state->pos + bsize > state->size) {
598 if (log_cb)
599 log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n",
600 state->pos + bsize, state->size);
601 bsize = state->size - state->pos;
602 if ((int)bsize <= 0)
603 return 0;
604 }
605
606 memcpy(p, state->load_buf + state->pos, bsize);
607 state->pos += bsize;
608 return bsize;
609}
610
611size_t state_write(void *p, size_t size, size_t nmemb, void *file)
612{
613 struct savestate_state *state = file;
614 size_t bsize = size * nmemb;
615
616 if (state->pos + bsize > state->size) {
617 if (log_cb)
618 log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n",
619 state->pos + bsize, state->size);
620 bsize = state->size - state->pos;
621 if ((int)bsize <= 0)
622 return 0;
623 }
624
625 memcpy(state->save_buf + state->pos, p, bsize);
626 state->pos += bsize;
627 return bsize;
628}
629
630size_t state_skip(void *p, size_t size, size_t nmemb, void *file)
631{
632 struct savestate_state *state = file;
633 size_t bsize = size * nmemb;
634
635 state->pos += bsize;
636 return bsize;
637}
638
639size_t state_eof(void *file)
640{
641 struct savestate_state *state = file;
642
643 return state->pos >= state->size;
644}
645
646int state_fseek(void *file, long offset, int whence)
647{
648 struct savestate_state *state = file;
649
650 switch (whence) {
651 case SEEK_SET:
652 state->pos = offset;
653 break;
654 case SEEK_CUR:
655 state->pos += offset;
656 break;
657 case SEEK_END:
658 state->pos = state->size + offset;
659 break;
660 }
661 return (int)state->pos;
662}
663
664/* savestate sizes vary wildly depending if cd/32x or
665 * carthw is active, so run the whole thing to get size */
666size_t retro_serialize_size(void)
667{
668 struct savestate_state state = { 0, };
669 int ret;
670
671 ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek);
672 if (ret != 0)
673 return 0;
674
675 return state.pos;
676}
677
678bool retro_serialize(void *data, size_t size)
679{
680 struct savestate_state state = { 0, };
681 int ret;
682
683 state.save_buf = data;
684 state.size = size;
685 state.pos = 0;
686
687 ret = PicoStateFP(&state, 1, NULL, state_write,
688 NULL, state_fseek);
689 return ret == 0;
690}
691
692bool retro_unserialize(const void *data, size_t size)
693{
694 struct savestate_state state = { 0, };
695 int ret;
696
697 state.load_buf = data;
698 state.size = size;
699 state.pos = 0;
700
701 ret = PicoStateFP(&state, 0, state_read, NULL,
702 state_eof, state_fseek);
703 return ret == 0;
704}
705
706typedef struct patch
707{
708 unsigned int addr;
709 unsigned short data;
710 unsigned char comp;
711} patch;
712
713extern void decode(char *buff, patch *dest);
714extern uint16_t m68k_read16(uint32_t a);
715extern void m68k_write16(uint32_t a, uint16_t d);
716
717void retro_cheat_reset(void)
718{
719 int i=0;
720 unsigned int addr;
721
722 for (i = 0; i < PicoPatchCount; i++)
723 {
724 addr = PicoPatches[i].addr;
725 if (addr < Pico.romsize) {
726 if (PicoPatches[i].active)
727 *(unsigned short *)(Pico.rom + addr) = PicoPatches[i].data_old;
728 } else {
729 if (PicoPatches[i].active)
730 m68k_write16(PicoPatches[i].addr,PicoPatches[i].data_old);
731 }
732 }
733
734 PicoPatchUnload();
735}
736
737void retro_cheat_set(unsigned index, bool enabled, const char *code)
738{
739 patch pt;
740 int array_len = PicoPatchCount;
741 char codeCopy[256];
742 char *buff;
743
744 if (code=='\0') return;
745 strcpy(codeCopy,code);
746 buff = strtok(codeCopy,"+");
747
748 while (buff != NULL)
749 {
750 decode(buff, &pt);
751 if (pt.addr == (uint32_t) -1 || pt.data == (uint16_t) -1)
752 {
753 log_cb(RETRO_LOG_ERROR,"CHEATS: Invalid code: %s\n",buff);
754 return;
755 }
756
757 /* code was good, add it */
758 if (array_len < PicoPatchCount + 1)
759 {
760 void *ptr;
761 array_len *= 2;
762 array_len++;
763 ptr = realloc(PicoPatches, array_len * sizeof(PicoPatches[0]));
764 if (ptr == NULL) {
765 log_cb(RETRO_LOG_ERROR,"CHEATS: Failed to allocate memory for: %s\n",buff);
766 return;
767 }
768 PicoPatches = ptr;
769 }
770 strcpy(PicoPatches[PicoPatchCount].code, buff);
771
772 PicoPatches[PicoPatchCount].active = enabled;
773 PicoPatches[PicoPatchCount].addr = pt.addr;
774 PicoPatches[PicoPatchCount].data = pt.data;
775 PicoPatches[PicoPatchCount].comp = pt.comp;
776 if (PicoPatches[PicoPatchCount].addr < Pico.romsize)
777 PicoPatches[PicoPatchCount].data_old = *(uint16_t *)(Pico.rom + PicoPatches[PicoPatchCount].addr);
778 else
779 PicoPatches[PicoPatchCount].data_old = (uint16_t) m68k_read16(PicoPatches[PicoPatchCount].addr);
780 PicoPatchCount++;
781
782 buff = strtok(NULL,"+");
783 }
784}
785
786/* multidisk support */
787static bool disk_ejected;
788static unsigned int disk_current_index;
789static unsigned int disk_count;
790static struct disks_state {
791 char *fname;
792} disks[8];
793
794static bool disk_set_eject_state(bool ejected)
795{
796 // TODO?
797 disk_ejected = ejected;
798 return true;
799}
800
801static bool disk_get_eject_state(void)
802{
803 return disk_ejected;
804}
805
806static unsigned int disk_get_image_index(void)
807{
808 return disk_current_index;
809}
810
811static bool disk_set_image_index(unsigned int index)
812{
813 enum cd_img_type cd_type;
814 int ret;
815
816 if (index >= sizeof(disks) / sizeof(disks[0]))
817 return false;
818
819 if (disks[index].fname == NULL) {
820 if (log_cb)
821 log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index);
822
823 // RetroArch specifies "no disk" with index == count,
824 // so don't fail here..
825 disk_current_index = index;
826 return true;
827 }
828
829 if (log_cb)
830 log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index,
831 disks[index].fname);
832
833 ret = -1;
834 cd_type = PicoCdCheck(disks[index].fname, NULL);
835 if (cd_type != CIT_NOT_CD)
836 ret = cdd_load(disks[index].fname, cd_type);
837 if (ret != 0) {
838 if (log_cb)
839 log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n");
840 return 0;
841 }
842
843 disk_current_index = index;
844 return true;
845}
846
847static unsigned int disk_get_num_images(void)
848{
849 return disk_count;
850}
851
852static bool disk_replace_image_index(unsigned index,
853 const struct retro_game_info *info)
854{
855 bool ret = true;
856
857 if (index >= sizeof(disks) / sizeof(disks[0]))
858 return false;
859
860 if (disks[index].fname != NULL)
861 free(disks[index].fname);
862 disks[index].fname = NULL;
863
864 if (info != NULL) {
865 disks[index].fname = strdup(info->path);
866 if (index == disk_current_index)
867 ret = disk_set_image_index(index);
868 }
869
870 return ret;
871}
872
873static bool disk_add_image_index(void)
874{
875 if (disk_count >= sizeof(disks) / sizeof(disks[0]))
876 return false;
877
878 disk_count++;
879 return true;
880}
881
882static struct retro_disk_control_callback disk_control = {
883 disk_set_eject_state,
884 disk_get_eject_state,
885 disk_get_image_index,
886 disk_set_image_index,
887 disk_get_num_images,
888 disk_replace_image_index,
889 disk_add_image_index,
890};
891
892static void disk_tray_open(void)
893{
894 if (log_cb)
895 log_cb(RETRO_LOG_INFO, "cd tray open\n");
896 disk_ejected = 1;
897}
898
899static void disk_tray_close(void)
900{
901 if (log_cb)
902 log_cb(RETRO_LOG_INFO, "cd tray close\n");
903 disk_ejected = 0;
904}
905
906
907static const char * const biosfiles_us[] = {
908 "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U"
909};
910static const char * const biosfiles_eu[] = {
911 "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E"
912};
913static const char * const biosfiles_jp[] = {
914 "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J"
915};
916
917static void make_system_path(char *buf, size_t buf_size,
918 const char *name, const char *ext)
919{
920 const char *dir = NULL;
921
922 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) {
923 snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext);
924 }
925 else {
926 snprintf(buf, buf_size, "%s%s", name, ext);
927 }
928}
929
930static const char *find_bios(int *region, const char *cd_fname)
931{
932 const char * const *files;
933 static char path[256];
934 int i, count;
935 FILE *f = NULL;
936
937 if (*region == 4) { // US
938 files = biosfiles_us;
939 count = sizeof(biosfiles_us) / sizeof(char *);
940 } else if (*region == 8) { // EU
941 files = biosfiles_eu;
942 count = sizeof(biosfiles_eu) / sizeof(char *);
943 } else if (*region == 1 || *region == 2) {
944 files = biosfiles_jp;
945 count = sizeof(biosfiles_jp) / sizeof(char *);
946 } else {
947 return NULL;
948 }
949
950 for (i = 0; i < count; i++)
951 {
952 make_system_path(path, sizeof(path), files[i], ".bin");
953 f = fopen(path, "rb");
954 if (f != NULL)
955 break;
956
957 make_system_path(path, sizeof(path), files[i], ".zip");
958 f = fopen(path, "rb");
959 if (f != NULL)
960 break;
961 }
962
963 if (f != NULL) {
964 if (log_cb)
965 log_cb(RETRO_LOG_INFO, "using bios: %s\n", path);
966 fclose(f);
967 return path;
968 }
969
970 return NULL;
971}
972
7612bf90 973bool retro_load_game(const struct retro_game_info *info)
974{
975 enum media_type_e media_type;
976 static char carthw_path[256];
977 size_t i;
978
979 struct retro_input_descriptor desc[] = {
980 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
981 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
982 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
983 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
984 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" },
985 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" },
986 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" },
987 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" },
988 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" },
989 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" },
990 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" },
991 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
992
993 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
994 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
995 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
996 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
997 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" },
998 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" },
999 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" },
1000 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" },
1001 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" },
1002 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" },
1003 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" },
1004 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
1005
1006 { 0 },
1007 };
1008
1009 struct retro_input_descriptor desc_sms[] = {
1010 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
1011 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
1012 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
1013 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1014 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" },
1015 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" },
1016 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" },
1017
1018 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
1019 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
1020 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
1021 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1022 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" },
1023 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" },
1024 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" },
1025
1026 { 0 },
1027 };
1028
7612bf90 1029 enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
1030 if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
1031 if (log_cb)
1032 log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n");
1033 return false;
1034 }
1035
1036 if (info == NULL || info->path == NULL) {
1037 if (log_cb)
1038 log_cb(RETRO_LOG_ERROR, "info->path required\n");
1039 return false;
1040 }
1041
1042 for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) {
1043 if (disks[i].fname != NULL) {
1044 free(disks[i].fname);
1045 disks[i].fname = NULL;
1046 }
1047 }
1048
1049 disk_current_index = 0;
1050 disk_count = 1;
1051 disks[0].fname = strdup(info->path);
1052
1053 make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg");
1054
1055 media_type = PicoLoadMedia(info->path, carthw_path,
1056 find_bios, NULL);
1057
1058 switch (media_type) {
1059 case PM_BAD_DETECT:
1060 if (log_cb)
1061 log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n");
1062 return false;
1063 case PM_BAD_CD:
1064 if (log_cb)
1065 log_cb(RETRO_LOG_ERROR, "Invalid CD image\n");
1066 return false;
1067 case PM_BAD_CD_NO_BIOS:
1068 if (log_cb)
1069 log_cb(RETRO_LOG_ERROR, "Missing BIOS\n");
1070 return false;
1071 case PM_ERROR:
1072 if (log_cb)
1073 log_cb(RETRO_LOG_ERROR, "Load error\n");
1074 return false;
1075 default:
1076 break;
1077 }
1078
1079 if (media_type == PM_MARK3)
1080 environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc_sms);
1081 else
1082 environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
1083
1084 PicoLoopPrepare();
1085
1086 PicoWriteSound = snd_write;
1087 memset(sndBuffer, 0, sizeof(sndBuffer));
1088 PsndOut = sndBuffer;
1089 PsndRerate(0);
1090
1091 return true;
1092}
1093
1094bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info)
1095{
1096 return false;
1097}
1098
1099void retro_unload_game(void)
1100{
1101}
1102
1103unsigned retro_get_region(void)
1104{
1105 return Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
1106}
1107
1108void *retro_get_memory_data(unsigned type)
1109{
1110 uint8_t* data;
1111
1112 switch(type)
1113 {
1114 case RETRO_MEMORY_SAVE_RAM:
1115 if (PicoAHW & PAHW_MCD)
1116 data = Pico_mcd->bram;
1117 else
28a5b392 1118 data = Pico.sv.data;
7612bf90 1119 break;
1120 case RETRO_MEMORY_SYSTEM_RAM:
1121 if (PicoAHW & PAHW_SMS)
28a5b392 1122 data = PicoMem.zram;
7612bf90 1123 else
28a5b392 1124 data = PicoMem.ram;
7612bf90 1125 break;
1126 default:
1127 data = NULL;
1128 break;
1129 }
1130
1131 return data;
1132}
1133
1134size_t retro_get_memory_size(unsigned type)
1135{
1136 unsigned int i;
1137 int sum;
1138
1139 switch(type)
1140 {
1141 case RETRO_MEMORY_SAVE_RAM:
1142 if (PicoAHW & PAHW_MCD)
1143 // bram
1144 return 0x2000;
1145
1146 if (Pico.m.frame_count == 0)
28a5b392 1147 return Pico.sv.size;
7612bf90 1148
1149 // if game doesn't write to sram, don't report it to
1150 // libretro so that RA doesn't write out zeroed .srm
28a5b392 1151 for (i = 0, sum = 0; i < Pico.sv.size; i++)
1152 sum |= Pico.sv.data[i];
7612bf90 1153
28a5b392 1154 return (sum != 0) ? Pico.sv.size : 0;
7612bf90 1155
1156 case RETRO_MEMORY_SYSTEM_RAM:
1157 if (PicoAHW & PAHW_SMS)
1158 return 0x2000;
1159 else
28a5b392 1160 return sizeof(PicoMem.ram);
7612bf90 1161
1162 default:
1163 return 0;
1164 }
1165
1166}
1167
1168void retro_reset(void)
1169{
1170 PicoReset();
1171}
1172
1173static const unsigned short retro_pico_map[] = {
1174 1 << GBTN_B,
1175 1 << GBTN_A,
1176 1 << GBTN_MODE,
1177 1 << GBTN_START,
1178 1 << GBTN_UP,
1179 1 << GBTN_DOWN,
1180 1 << GBTN_LEFT,
1181 1 << GBTN_RIGHT,
1182 1 << GBTN_C,
1183 1 << GBTN_Y,
1184 1 << GBTN_X,
1185 1 << GBTN_Z,
1186};
1187#define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0]))
1188
1189static void snd_write(int len)
1190{
1191 audio_batch_cb(PsndOut, len / 4);
1192}
1193
1194static enum input_device input_name_to_val(const char *name)
1195{
1196 if (strcmp(name, "3 button pad") == 0)
1197 return PICO_INPUT_PAD_3BTN;
1198 if (strcmp(name, "6 button pad") == 0)
1199 return PICO_INPUT_PAD_6BTN;
1200 if (strcmp(name, "None") == 0)
1201 return PICO_INPUT_NOTHING;
1202
1203 if (log_cb)
1204 log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name);
1205 return PICO_INPUT_PAD_3BTN;
1206}
1207
1208static void update_variables(void)
1209{
1210 struct retro_variable var;
1211
1212 var.value = NULL;
1213 var.key = "picodrive_input1";
1214 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1215 PicoSetInputDevice(0, input_name_to_val(var.value));
1216
1217 var.value = NULL;
1218 var.key = "picodrive_input2";
1219 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1220 PicoSetInputDevice(1, input_name_to_val(var.value));
1221
1222 var.value = NULL;
1223 var.key = "picodrive_sprlim";
1224 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
1225 if (strcmp(var.value, "enabled") == 0)
1226 PicoOpt |= POPT_DIS_SPRITE_LIM;
1227 else
1228 PicoOpt &= ~POPT_DIS_SPRITE_LIM;
1229 }
1230
1231 var.value = NULL;
1232 var.key = "picodrive_ramcart";
1233 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
1234 if (strcmp(var.value, "enabled") == 0)
1235 PicoOpt |= POPT_EN_MCD_RAMCART;
1236 else
1237 PicoOpt &= ~POPT_EN_MCD_RAMCART;
1238 }
1239
1240 int OldPicoRegionOverride = PicoRegionOverride;
1241 var.value = NULL;
1242 var.key = "picodrive_region";
1243 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
1244 if (strcmp(var.value, "Auto") == 0)
1245 PicoRegionOverride = 0;
1246 else if (strcmp(var.value, "Japan NTSC") == 0)
1247 PicoRegionOverride = 1;
1248 else if (strcmp(var.value, "Japan PAL") == 0)
1249 PicoRegionOverride = 2;
1250 else if (strcmp(var.value, "US") == 0)
1251 PicoRegionOverride = 4;
1252 else if (strcmp(var.value, "Europe") == 0)
1253 PicoRegionOverride = 8;
1254 }
1255
7612bf90 1256 // Update region, fps and sound flags if needed
28a5b392 1257 if (Pico.rom && PicoRegionOverride != OldPicoRegionOverride)
7612bf90 1258 {
1259 PicoDetectRegion();
1260 PicoLoopPrepare();
1261 PsndRerate(1);
1262 }
1263
1264 float old_user_vout_width = user_vout_width;
1265 var.value = NULL;
1266 var.key = "picodrive_aspect";
1267 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
1268 if (strcmp(var.value, "4/3") == 0)
1269 user_vout_width = VOUT_4_3;
1270 else if (strcmp(var.value, "CRT") == 0)
1271 user_vout_width = VOUT_CRT;
1272 else
1273 user_vout_width = VOUT_PAR;
1274 }
1275
1276 var.value = NULL;
1277 var.key = "picodrive_overscan";
1278 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
1279 if (strcmp(var.value, "enabled") == 0)
1280 show_overscan = true;
1281 else
1282 show_overscan = false;
1283 }
1284
1285 if (user_vout_width != old_user_vout_width)
1286 {
1287 // Update the geometry
1288 struct retro_system_av_info av_info;
1289 retro_get_system_av_info(&av_info);
1290 environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info);
1291 }
1292
1293#ifdef DRC_SH2
1294 var.value = NULL;
1295 var.key = "picodrive_drc";
1296 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
1297 if (strcmp(var.value, "enabled") == 0)
1298 PicoOpt |= POPT_EN_DRC;
1299 else
1300 PicoOpt &= ~POPT_EN_DRC;
1301 }
1302#endif
1303#ifdef _3DS
1304 if(!ctr_svchack_successful)
1305 PicoOpt &= ~POPT_EN_DRC;
1306#endif
1307}
1308
1309void retro_run(void)
1310{
1311 bool updated = false;
1312 int pad, i;
1313
1314 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
1315 update_variables();
1316
1317 input_poll_cb();
1318
1319 PicoPad[0] = PicoPad[1] = 0;
1320 for (pad = 0; pad < 2; pad++)
1321 for (i = 0; i < RETRO_PICO_MAP_LEN; i++)
1322 if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i))
1323 PicoPad[pad] |= retro_pico_map[i];
1324
1325 PicoPatchApply();
1326 PicoFrame();
1327
1328 video_cb((short *)vout_buf + vout_offset,
1329 vout_width, vout_height, vout_width * 2);
1330}
1331
7612bf90 1332void retro_init(void)
1333{
1334 struct retro_log_callback log;
1335 int level;
1336
1337 level = 0;
1338 environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
1339
1340 if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log))
1341 log_cb = log.log;
1342 else
1343 log_cb = NULL;
1344
1345 environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
1346
1347#ifdef _3DS
1348 ctr_svchack_successful = ctr_svchack_init();
1349#elif defined(VITA)
1350 sceBlock = getVMBlock();
1351#endif
1352
1353 PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80
1354 | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX
1355 | POPT_EN_32X|POPT_EN_PWM
1356 | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER;
1357#ifdef __arm__
1358#ifdef _3DS
1359 if (ctr_svchack_successful)
1360#endif
1361 PicoOpt |= POPT_EN_DRC;
1362#endif
1363 PsndRate = 44100;
1364 PicoAutoRgnOrder = 0x184; // US, EU, JP
1365
1366 vout_width = 320;
1367 vout_height = 240;
1368#ifdef _3DS
1369 vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80);
1370#else
1371 vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
1372#endif
1373
1374 PicoInit();
1375 PicoDrawSetOutFormat(PDF_RGB555, 0);
1376 PicoDrawSetOutBuf(vout_buf, vout_width * 2);
1377
1378 //PicoMessage = plat_status_msg_busy_next;
1379 PicoMCDopenTray = disk_tray_open;
1380 PicoMCDcloseTray = disk_tray_close;
1381
1382 update_variables();
1383}
1384
1385void retro_deinit(void)
1386{
1387#ifdef _3DS
1388 linearFree(vout_buf);
1389#else
1390 free(vout_buf);
1391#endif
1392 vout_buf = NULL;
1393 PicoExit();
1394}
df925153 1395
1396// vim:shiftwidth=3:ts=3:expandtab
fast MegaDrive/MegaCD/32X emulator