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libretro: Implement input descriptors
[pcsx_rearmed.git] / frontend / libretro.c
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1/*
2 * (C) notaz, 2012
3 *
4 * This work is licensed under the terms of the GNU GPLv2 or later.
5 * See the COPYING file in the top-level directory.
6 */
7
8#define _GNU_SOURCE 1 // strcasestr
9#include <stdio.h>
10#include <stdlib.h>
11#include <string.h>
12#include <strings.h>
13
14#include "../libpcsxcore/misc.h"
15#include "../libpcsxcore/psxcounters.h"
16#include "../libpcsxcore/psxmem_map.h"
17#include "../libpcsxcore/new_dynarec/new_dynarec.h"
18#include "../libpcsxcore/cdrom.h"
19#include "../libpcsxcore/cdriso.h"
20#include "../libpcsxcore/cheat.h"
21#include "../plugins/dfsound/out.h"
22#include "../plugins/dfinput/externals.h"
23#include "cspace.h"
24#include "main.h"
25#include "plugin.h"
26#include "plugin_lib.h"
27#include "revision.h"
28#include "libretro.h"
29
30static retro_video_refresh_t video_cb;
31static retro_input_poll_t input_poll_cb;
32static retro_input_state_t input_state_cb;
33static retro_environment_t environ_cb;
34static retro_audio_sample_batch_t audio_batch_cb;
35
36static void *vout_buf;
37static int vout_width, vout_height;
38static int vout_doffs_old, vout_fb_dirty;
39static bool vout_can_dupe;
40static bool duping_enable;
41
42static int samples_sent, samples_to_send;
43static int plugins_opened;
44static int is_pal_mode;
45
46/* memory card data */
47extern char Mcd1Data[MCD_SIZE];
48extern char McdDisable[2];
49
50/* PCSX ReARMed core calls and stuff */
51int in_type1, in_type2;
52int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
53int in_keystate;
54int in_enable_vibration;
55
56/* PSX max resolution is 640x512, but with enhancement it's 1024x512 */
57#define VOUT_MAX_WIDTH 1024
58#define VOUT_MAX_HEIGHT 512
59
60static void init_memcard(char *mcd_data)
61{
62 unsigned off = 0;
63 unsigned i;
64
65 memset(mcd_data, 0, MCD_SIZE);
66
67 mcd_data[off++] = 'M';
68 mcd_data[off++] = 'C';
69 off += 0x7d;
70 mcd_data[off++] = 0x0e;
71
72 for (i = 0; i < 15; i++) {
73 mcd_data[off++] = 0xa0;
74 off += 0x07;
75 mcd_data[off++] = 0xff;
76 mcd_data[off++] = 0xff;
77 off += 0x75;
78 mcd_data[off++] = 0xa0;
79 }
80
81 for (i = 0; i < 20; i++) {
82 mcd_data[off++] = 0xff;
83 mcd_data[off++] = 0xff;
84 mcd_data[off++] = 0xff;
85 mcd_data[off++] = 0xff;
86 off += 0x04;
87 mcd_data[off++] = 0xff;
88 mcd_data[off++] = 0xff;
89 off += 0x76;
90 }
91}
92
93static int vout_open(void)
94{
95 return 0;
96}
97
98static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
99{
100 vout_width = w;
101 vout_height = h;
102}
103
104#ifndef FRONTEND_SUPPORTS_RGB565
105static void convert(void *buf, size_t bytes)
106{
107 unsigned int i, v, *p = buf;
108
109 for (i = 0; i < bytes / 4; i++) {
110 v = p[i];
111 p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
112 }
113}
114#endif
115
116static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
117{
118 unsigned short *dest = vout_buf;
119 const unsigned short *src = vram;
120 int dstride = vout_width, h1 = h;
121 int doffs;
122
123 if (vram == NULL) {
124 // blanking
125 memset(vout_buf, 0, dstride * h * 2);
126 goto out;
127 }
128
129 doffs = (vout_height - h) * dstride;
130 doffs += (dstride - w) / 2 & ~1;
131 if (doffs != vout_doffs_old) {
132 // clear borders
133 memset(vout_buf, 0, dstride * h * 2);
134 vout_doffs_old = doffs;
135 }
136 dest += doffs;
137
138 if (bgr24)
139 {
140 // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
141 for (; h1-- > 0; dest += dstride, src += stride)
142 {
143 bgr888_to_rgb565(dest, src, w * 3);
144 }
145 }
146 else
147 {
148 for (; h1-- > 0; dest += dstride, src += stride)
149 {
150 bgr555_to_rgb565(dest, src, w * 2);
151 }
152 }
153
154out:
155#ifndef FRONTEND_SUPPORTS_RGB565
156 convert(vout_buf, vout_width * vout_height * 2);
157#endif
158 vout_fb_dirty = 1;
159 pl_rearmed_cbs.flip_cnt++;
160}
161
162static void vout_close(void)
163{
164}
165
166static void *pl_mmap(unsigned int size)
167{
168 return psxMap(0, size, 0, MAP_TAG_VRAM);
169}
170
171static void pl_munmap(void *ptr, unsigned int size)
172{
173 psxUnmap(ptr, size, MAP_TAG_VRAM);
174}
175
176struct rearmed_cbs pl_rearmed_cbs = {
177 .pl_vout_open = vout_open,
178 .pl_vout_set_mode = vout_set_mode,
179 .pl_vout_flip = vout_flip,
180 .pl_vout_close = vout_close,
181 .mmap = pl_mmap,
182 .munmap = pl_munmap,
183 /* from psxcounters */
184 .gpu_hcnt = &hSyncCount,
185 .gpu_frame_count = &frame_counter,
186};
187
188void pl_frame_limit(void)
189{
190 /* called once per frame, make psxCpu->Execute() above return */
191 stop = 1;
192}
193
194void pl_timing_prepare(int is_pal)
195{
196 is_pal_mode = is_pal;
197}
198
199void plat_trigger_vibrate(int is_strong)
200{
201}
202
203void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
204{
205}
206
207/* sound calls */
208static int snd_init(void)
209{
210 return 0;
211}
212
213static void snd_finish(void)
214{
215}
216
217static int snd_busy(void)
218{
219 if (samples_to_send > samples_sent)
220 return 0; /* give more samples */
221 else
222 return 1;
223}
224
225static void snd_feed(void *buf, int bytes)
226{
227 audio_batch_cb(buf, bytes / 4);
228 samples_sent += bytes / 4;
229}
230
231void out_register_libretro(struct out_driver *drv)
232{
233 drv->name = "libretro";
234 drv->init = snd_init;
235 drv->finish = snd_finish;
236 drv->busy = snd_busy;
237 drv->feed = snd_feed;
238}
239
240/* libretro */
241void retro_set_environment(retro_environment_t cb)
242{
243 static const struct retro_variable vars[] = {
244 { "frameskip", "Frameskip; 0|1|2|3" },
245 { "region", "Region; Auto|NTSC|PAL" },
246 { "pad1type", "Pad 1 Type; standard|analog" },
247#ifndef DRC_DISABLE
248 { "rearmed_drc", "Dynamic recompiler; enabled|disabled" },
249#endif
250#ifdef __ARM_NEON__
251 { "neon_interlace_enable", "Enable interlacing mode(s); disabled|enabled" },
252 { "neon_enhancement_enable", "Enhanced resolution (slow); disabled|enabled" },
253 { "neon_enhancement_no_main", "Enhanced resolution speed hack; disabled|enabled" },
254#endif
255 { "pcsx_rearmed_duping_enable", "Frame duping; on|off" },
256 { NULL, NULL },
257 };
258
259 environ_cb = cb;
260
261 cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void*)vars);
262}
263
264void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
265void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
266void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
267void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
268void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
269
270unsigned retro_api_version(void)
271{
272 return RETRO_API_VERSION;
273}
274
275void retro_set_controller_port_device(unsigned port, unsigned device)
276{
277}
278
279void retro_get_system_info(struct retro_system_info *info)
280{
281 memset(info, 0, sizeof(*info));
282 info->library_name = "PCSX-ReARMed";
283 info->library_version = "r19";
284 info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn|m3u";
285 info->need_fullpath = true;
286}
287
288void retro_get_system_av_info(struct retro_system_av_info *info)
289{
290 memset(info, 0, sizeof(*info));
291 info->timing.fps = is_pal_mode ? 50 : 60;
292 info->timing.sample_rate = 44100;
293 info->geometry.base_width = 320;
294 info->geometry.base_height = 240;
295 info->geometry.max_width = VOUT_MAX_WIDTH;
296 info->geometry.max_height = VOUT_MAX_HEIGHT;
297 info->geometry.aspect_ratio = 4.0 / 3.0;
298}
299
300/* savestates */
301size_t retro_serialize_size(void)
302{
303 // it's currently 4380651 bytes, but have some reserved for future
304 return 0x430000;
305}
306
307struct save_fp {
308 char *buf;
309 size_t pos;
310 int is_write;
311};
312
313static void *save_open(const char *name, const char *mode)
314{
315 struct save_fp *fp;
316
317 if (name == NULL || mode == NULL)
318 return NULL;
319
320 fp = malloc(sizeof(*fp));
321 if (fp == NULL)
322 return NULL;
323
324 fp->buf = (char *)name;
325 fp->pos = 0;
326 fp->is_write = (mode[0] == 'w' || mode[1] == 'w');
327
328 return fp;
329}
330
331static int save_read(void *file, void *buf, u32 len)
332{
333 struct save_fp *fp = file;
334 if (fp == NULL || buf == NULL)
335 return -1;
336
337 memcpy(buf, fp->buf + fp->pos, len);
338 fp->pos += len;
339 return len;
340}
341
342static int save_write(void *file, const void *buf, u32 len)
343{
344 struct save_fp *fp = file;
345 if (fp == NULL || buf == NULL)
346 return -1;
347
348 memcpy(fp->buf + fp->pos, buf, len);
349 fp->pos += len;
350 return len;
351}
352
353static long save_seek(void *file, long offs, int whence)
354{
355 struct save_fp *fp = file;
356 if (fp == NULL)
357 return -1;
358
359 switch (whence) {
360 case SEEK_CUR:
361 fp->pos += offs;
362 return fp->pos;
363 case SEEK_SET:
364 fp->pos = offs;
365 return fp->pos;
366 default:
367 return -1;
368 }
369}
370
371static void save_close(void *file)
372{
373 struct save_fp *fp = file;
374 size_t r_size = retro_serialize_size();
375 if (fp == NULL)
376 return;
377
378 if (fp->pos > r_size)
379 SysPrintf("ERROR: save buffer overflow detected\n");
380 else if (fp->is_write && fp->pos < r_size)
381 // make sure we don't save trash in leftover space
382 memset(fp->buf + fp->pos, 0, r_size - fp->pos);
383 free(fp);
384}
385
386bool retro_serialize(void *data, size_t size)
387{
388 int ret = SaveState(data);
389 return ret == 0 ? true : false;
390}
391
392bool retro_unserialize(const void *data, size_t size)
393{
394 int ret = LoadState(data);
395 return ret == 0 ? true : false;
396}
397
398/* cheats */
399void retro_cheat_reset(void)
400{
401 ClearAllCheats();
402}
403
404void retro_cheat_set(unsigned index, bool enabled, const char *code)
405{
406 char buf[256];
407 int ret;
408
409 // cheat funcs are destructive, need a copy..
410 strncpy(buf, code, sizeof(buf));
411 buf[sizeof(buf) - 1] = 0;
412
413 if (index < NumCheats)
414 ret = EditCheat(index, "", buf);
415 else
416 ret = AddCheat("", buf);
417
418 if (ret != 0)
419 SysPrintf("Failed to set cheat %#u\n", index);
420 else if (index < NumCheats)
421 Cheats[index].Enabled = enabled;
422}
423
424/* multidisk support */
425static bool disk_ejected;
426static unsigned int disk_current_index;
427static unsigned int disk_count;
428static struct disks_state {
429 char *fname;
430 int internal_index; // for multidisk eboots
431} disks[8];
432
433static bool disk_set_eject_state(bool ejected)
434{
435 // weird PCSX API..
436 SetCdOpenCaseTime(ejected ? -1 : (time(NULL) + 2));
437 LidInterrupt();
438
439 disk_ejected = ejected;
440 return true;
441}
442
443static bool disk_get_eject_state(void)
444{
445 /* can't be controlled by emulated software */
446 return disk_ejected;
447}
448
449static unsigned int disk_get_image_index(void)
450{
451 return disk_current_index;
452}
453
454static bool disk_set_image_index(unsigned int index)
455{
456 if (index >= sizeof(disks) / sizeof(disks[0]))
457 return false;
458
459 CdromId[0] = '\0';
460 CdromLabel[0] = '\0';
461
462 if (disks[index].fname == NULL) {
463 SysPrintf("missing disk #%u\n", index);
464 CDR_shutdown();
465
466 // RetroArch specifies "no disk" with index == count,
467 // so don't fail here..
468 disk_current_index = index;
469 return true;
470 }
471
472 SysPrintf("switching to disk %u: \"%s\" #%d\n", index,
473 disks[index].fname, disks[index].internal_index);
474
475 cdrIsoMultidiskSelect = disks[index].internal_index;
476 set_cd_image(disks[index].fname);
477 if (ReloadCdromPlugin() < 0) {
478 SysPrintf("failed to load cdr plugin\n");
479 return false;
480 }
481 if (CDR_open() < 0) {
482 SysPrintf("failed to open cdr plugin\n");
483 return false;
484 }
485
486 if (!disk_ejected) {
487 SetCdOpenCaseTime(time(NULL) + 2);
488 LidInterrupt();
489 }
490
491 disk_current_index = index;
492 return true;
493}
494
495static unsigned int disk_get_num_images(void)
496{
497 return disk_count;
498}
499
500static bool disk_replace_image_index(unsigned index,
501 const struct retro_game_info *info)
502{
503 char *old_fname;
504 bool ret = true;
505
506 if (index >= sizeof(disks) / sizeof(disks[0]))
507 return false;
508
509 old_fname = disks[index].fname;
510 disks[index].fname = NULL;
511 disks[index].internal_index = 0;
512
513 if (info != NULL) {
514 disks[index].fname = strdup(info->path);
515 if (index == disk_current_index)
516 ret = disk_set_image_index(index);
517 }
518
519 if (old_fname != NULL)
520 free(old_fname);
521
522 return ret;
523}
524
525static bool disk_add_image_index(void)
526{
527 if (disk_count >= 8)
528 return false;
529
530 disk_count++;
531 return true;
532}
533
534static struct retro_disk_control_callback disk_control = {
535 .set_eject_state = disk_set_eject_state,
536 .get_eject_state = disk_get_eject_state,
537 .get_image_index = disk_get_image_index,
538 .set_image_index = disk_set_image_index,
539 .get_num_images = disk_get_num_images,
540 .replace_image_index = disk_replace_image_index,
541 .add_image_index = disk_add_image_index,
542};
543
544// just in case, maybe a win-rt port in the future?
545#ifdef _WIN32
546#define SLASH '\\'
547#else
548#define SLASH '/'
549#endif
550
551static char base_dir[PATH_MAX];
552
553static bool read_m3u(const char *file)
554{
555 char line[PATH_MAX];
556 char name[PATH_MAX];
557 FILE *f = fopen(file, "r");
558 if (!f)
559 return false;
560
561 while (fgets(line, sizeof(line), f) && disk_count < sizeof(disks) / sizeof(disks[0])) {
562 if (line[0] == '#')
563 continue;
564 char *carrige_return = strchr(line, '\r');
565 if (carrige_return)
566 *carrige_return = '\0';
567 char *newline = strchr(line, '\n');
568 if (newline)
569 *newline = '\0';
570
571 if (line[0] != '\0')
572 {
573 snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line);
574 disks[disk_count++].fname = strdup(name);
575 }
576 }
577
578 fclose(f);
579 return (disk_count != 0);
580}
581
582static void extract_directory(char *buf, const char *path, size_t size)
583{
584 char *base;
585 strncpy(buf, path, size - 1);
586 buf[size - 1] = '\0';
587
588 base = strrchr(buf, '/');
589 if (!base)
590 base = strrchr(buf, '\\');
591
592 if (base)
593 *base = '\0';
594 else
595 {
596 buf[0] = '.';
597 buf[1] = '\0';
598 }
599}
600
601#ifdef __QNX__
602/* Blackberry QNX doesn't have strcasestr */
603
604/*
605 * Find the first occurrence of find in s, ignore case.
606 */
607char *
608strcasestr(const char *s, const char*find)
609{
610 char c, sc;
611 size_t len;
612
613 if ((c = *find++) != 0) {
614 c = tolower((unsigned char)c);
615 len = strlen(find);
616 do {
617 do {
618 if ((sc = *s++) == 0)
619 return (NULL);
620 } while ((char)tolower((unsigned char)sc) != c);
621 } while (strncasecmp(s, find, len) != 0);
622 s--;
623 }
624 return ((char *)s);
625}
626#endif
627
628bool retro_load_game(const struct retro_game_info *info)
629{
630 size_t i;
631 bool is_m3u = (strcasestr(info->path, ".m3u") != NULL);
632
633 struct retro_input_descriptor desc[] = {
634 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
635 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
636 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
637 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
638 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
639 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
640 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
641 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
642 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
643 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
644 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
645 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
646 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
647 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
648 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
649 { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
650
651 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
652 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
653 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
654 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
655 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
656 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
657 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
658 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
659 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
660 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
661 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
662 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
663 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
664 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
665 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
666 { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
667
668 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
669 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
670 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
671 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
672 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
673 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
674 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
675 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
676 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
677 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
678 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
679 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
680 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
681 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
682 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
683 { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
684
685 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
686 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
687 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
688 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
689 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
690 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
691 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
692 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
693 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
694 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
695 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
696 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
697 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
698 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
699 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
700 { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
701
702 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
703 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
704 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
705 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
706 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
707 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
708 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
709 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
710 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
711 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
712 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
713 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
714 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
715 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
716 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
717 { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
718
719 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
720 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
721 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
722 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
723 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
724 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
725 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
726 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
727 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
728 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
729 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
730 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
731 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
732 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
733 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
734 { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
735
736 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
737 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
738 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
739 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
740 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
741 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
742 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
743 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
744 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
745 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
746 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
747 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
748 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
749 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
750 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
751 { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
752
753 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
754 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
755 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
756 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
757 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
758 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
759 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
760 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
761 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
762 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
763 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
764 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
765 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
766 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
767 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
768 { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
769
770 { 0 },
771 };
772
773 environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
774
775#ifdef FRONTEND_SUPPORTS_RGB565
776 enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
777 if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
778 SysPrintf("RGB565 supported, using it\n");
779 }
780#endif
781
782 if (info == NULL || info->path == NULL) {
783 SysPrintf("info->path required\n");
784 return false;
785 }
786
787 if (plugins_opened) {
788 ClosePlugins();
789 plugins_opened = 0;
790 }
791
792 for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) {
793 if (disks[i].fname != NULL) {
794 free(disks[i].fname);
795 disks[i].fname = NULL;
796 }
797 disks[i].internal_index = 0;
798 }
799
800 disk_current_index = 0;
801 extract_directory(base_dir, info->path, sizeof(base_dir));
802
803 if (is_m3u) {
804 if (!read_m3u(info->path)) {
805 SysPrintf("failed to read m3u file\n");
806 return false;
807 }
808 } else {
809 disk_count = 1;
810 disks[0].fname = strdup(info->path);
811 }
812
813 set_cd_image(disks[0].fname);
814
815 /* have to reload after set_cd_image for correct cdr plugin */
816 if (LoadPlugins() == -1) {
817 SysPrintf("failed to load plugins\n");
818 return false;
819 }
820
821 plugins_opened = 1;
822 NetOpened = 0;
823
824 if (OpenPlugins() == -1) {
825 SysPrintf("failed to open plugins\n");
826 return false;
827 }
828
829 plugin_call_rearmed_cbs();
830 dfinput_activate();
831
832 Config.PsxAuto = 1;
833 if (CheckCdrom() == -1) {
834 SysPrintf("unsupported/invalid CD image: %s\n", info->path);
835 return false;
836 }
837
838 SysReset();
839
840 if (LoadCdrom() == -1) {
841 SysPrintf("could not load CD-ROM!\n");
842 return false;
843 }
844 emu_on_new_cd(0);
845
846 // multidisk images
847 if (!is_m3u) {
848 disk_count = cdrIsoMultidiskCount < 8 ? cdrIsoMultidiskCount : 8;
849 for (i = 1; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++) {
850 disks[i].fname = strdup(info->path);
851 disks[i].internal_index = i;
852 }
853 }
854
855 return true;
856}
857
858bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info)
859{
860 return false;
861}
862
863void retro_unload_game(void)
864{
865}
866
867unsigned retro_get_region(void)
868{
869 return is_pal_mode ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
870}
871
872void *retro_get_memory_data(unsigned id)
873{
874 if (id == RETRO_MEMORY_SAVE_RAM)
875 return Mcd1Data;
876 else
877 return NULL;
878}
879
880size_t retro_get_memory_size(unsigned id)
881{
882 if (id == RETRO_MEMORY_SAVE_RAM)
883 return MCD_SIZE;
884 else
885 return 0;
886}
887
888void retro_reset(void)
889{
890 SysReset();
891}
892
893static const unsigned short retro_psx_map[] = {
894 [RETRO_DEVICE_ID_JOYPAD_B] = 1 << DKEY_CROSS,
895 [RETRO_DEVICE_ID_JOYPAD_Y] = 1 << DKEY_SQUARE,
896 [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT,
897 [RETRO_DEVICE_ID_JOYPAD_START] = 1 << DKEY_START,
898 [RETRO_DEVICE_ID_JOYPAD_UP] = 1 << DKEY_UP,
899 [RETRO_DEVICE_ID_JOYPAD_DOWN] = 1 << DKEY_DOWN,
900 [RETRO_DEVICE_ID_JOYPAD_LEFT] = 1 << DKEY_LEFT,
901 [RETRO_DEVICE_ID_JOYPAD_RIGHT] = 1 << DKEY_RIGHT,
902 [RETRO_DEVICE_ID_JOYPAD_A] = 1 << DKEY_CIRCLE,
903 [RETRO_DEVICE_ID_JOYPAD_X] = 1 << DKEY_TRIANGLE,
904 [RETRO_DEVICE_ID_JOYPAD_L] = 1 << DKEY_L1,
905 [RETRO_DEVICE_ID_JOYPAD_R] = 1 << DKEY_R1,
906 [RETRO_DEVICE_ID_JOYPAD_L2] = 1 << DKEY_L2,
907 [RETRO_DEVICE_ID_JOYPAD_R2] = 1 << DKEY_R2,
908 [RETRO_DEVICE_ID_JOYPAD_L3] = 1 << DKEY_L3,
909 [RETRO_DEVICE_ID_JOYPAD_R3] = 1 << DKEY_R3,
910};
911#define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))
912
913static void update_variables(bool in_flight)
914{
915 struct retro_variable var;
916
917 var.value = NULL;
918 var.key = "frameskip";
919
920 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
921 pl_rearmed_cbs.frameskip = atoi(var.value);
922
923 var.value = NULL;
924 var.key = "region";
925
926 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
927 {
928 Config.PsxAuto = 0;
929 if (strcmp(var.value, "Automatic") == 0)
930 Config.PsxAuto = 1;
931 else if (strcmp(var.value, "NTSC") == 0)
932 Config.PsxType = 0;
933 else if (strcmp(var.value, "PAL") == 0)
934 Config.PsxType = 1;
935 }
936
937 var.value = NULL;
938 var.key = "pad1type";
939
940 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
941 {
942 in_type1 = PSE_PAD_TYPE_STANDARD;
943 if (strcmp(var.value, "analog") == 0)
944 in_type1 = PSE_PAD_TYPE_ANALOGPAD;
945 }
946
947#ifdef __ARM_NEON__
948 var.value = "NULL";
949 var.key = "neon_interlace_enable";
950
951 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
952 {
953 if (strcmp(var.value, "disabled") == 0)
954 pl_rearmed_cbs.gpu_neon.allow_interlace = 0;
955 else if (strcmp(var.value, "enabled") == 0)
956 pl_rearmed_cbs.gpu_neon.allow_interlace = 1;
957 }
958
959 var.value = NULL;
960 var.key = "neon_enhancement_enable";
961
962 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
963 {
964 if (strcmp(var.value, "disabled") == 0)
965 pl_rearmed_cbs.gpu_neon.enhancement_enable = 0;
966 else if (strcmp(var.value, "enabled") == 0)
967 pl_rearmed_cbs.gpu_neon.enhancement_enable = 1;
968 }
969
970 var.value = NULL;
971 var.key = "neon_enhancement_no_main";
972
973 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
974 {
975 if (strcmp(var.value, "disabled") == 0)
976 pl_rearmed_cbs.gpu_neon.enhancement_no_main = 0;
977 else if (strcmp(var.value, "enabled") == 0)
978 pl_rearmed_cbs.gpu_neon.enhancement_no_main = 1;
979 }
980#endif
981
982 var.value = "NULL";
983 var.key = "pcsx_rearmed_duping_enable";
984
985 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
986 {
987 if (strcmp(var.value, "off") == 0)
988 duping_enable = false;
989 else if (strcmp(var.value, "on") == 0)
990 duping_enable = true;
991 }
992
993#ifndef DRC_DISABLE
994 var.value = NULL;
995 var.key = "rearmed_drc";
996
997 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
998 {
999 R3000Acpu *prev_cpu = psxCpu;
1000
1001 if (strcmp(var.value, "disabled") == 0)
1002 Config.Cpu = CPU_INTERPRETER;
1003 else if (strcmp(var.value, "enabled") == 0)
1004 Config.Cpu = CPU_DYNAREC;
1005
1006 psxCpu = (Config.Cpu == CPU_INTERPRETER) ? &psxInt : &psxRec;
1007 if (psxCpu != prev_cpu) {
1008 prev_cpu->Shutdown();
1009 psxCpu->Init();
1010 psxCpu->Reset(); // not really a reset..
1011 }
1012 }
1013#endif
1014
1015 if (in_flight) {
1016 // inform core things about possible config changes
1017 plugin_call_rearmed_cbs();
1018
1019 if (GPU_open != NULL && GPU_close != NULL) {
1020 GPU_close();
1021 GPU_open(&gpuDisp, "PCSX", NULL);
1022 }
1023
1024 dfinput_activate();
1025 }
1026}
1027
1028void retro_run(void)
1029{
1030 int i;
1031
1032 input_poll_cb();
1033
1034 bool updated = false;
1035 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
1036 update_variables(true);
1037
1038 in_keystate = 0;
1039 for (i = 0; i < RETRO_PSX_MAP_LEN; i++)
1040 if (input_state_cb(1, RETRO_DEVICE_JOYPAD, 0, i))
1041 in_keystate |= retro_psx_map[i];
1042 in_keystate <<= 16;
1043 for (i = 0; i < RETRO_PSX_MAP_LEN; i++)
1044 if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, i))
1045 in_keystate |= retro_psx_map[i];
1046
1047 if (in_type1 == PSE_PAD_TYPE_ANALOGPAD)
1048 {
1049 in_a1[0] = (input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X) / 256) + 128;
1050 in_a1[1] = (input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y) / 256) + 128;
1051 in_a2[0] = (input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X) / 256) + 128;
1052 in_a2[1] = (input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y) / 256) + 128;
1053 }
1054
1055 stop = 0;
1056 psxCpu->Execute();
1057
1058 samples_to_send += is_pal_mode ? 44100 / 50 : 44100 / 60;
1059
1060 video_cb((vout_fb_dirty || !vout_can_dupe || !duping_enable) ? vout_buf : NULL,
1061 vout_width, vout_height, vout_width * 2);
1062 vout_fb_dirty = 0;
1063}
1064
1065static bool try_use_bios(const char *path)
1066{
1067 FILE *f;
1068 long size;
1069 const char *name;
1070
1071 f = fopen(path, "rb");
1072 if (f == NULL)
1073 return false;
1074
1075 fseek(f, 0, SEEK_END);
1076 size = ftell(f);
1077 fclose(f);
1078
1079 if (size != 512 * 1024)
1080 return false;
1081
1082 name = strrchr(path, SLASH);
1083 if (name++ == NULL)
1084 name = path;
1085 snprintf(Config.Bios, sizeof(Config.Bios), "%s", name);
1086 return true;
1087}
1088
1089#if 1
1090#include <sys/types.h>
1091#include <dirent.h>
1092
1093static bool find_any_bios(const char *dirpath, char *path, size_t path_size)
1094{
1095 DIR *dir;
1096 struct dirent *ent;
1097 bool ret = false;
1098
1099 dir = opendir(dirpath);
1100 if (dir == NULL)
1101 return false;
1102
1103 while ((ent = readdir(dir))) {
1104 if (strncasecmp(ent->d_name, "scph", 4) != 0)
1105 continue;
1106
1107 snprintf(path, path_size, "%s/%s", dirpath, ent->d_name);
1108 ret = try_use_bios(path);
1109 if (ret)
1110 break;
1111 }
1112 closedir(dir);
1113 return ret;
1114}
1115#else
1116#define find_any_bios(...) false
1117#endif
1118
1119static void check_system_specs(void)
1120{
1121 unsigned level = 6;
1122 environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
1123}
1124
1125void retro_init(void)
1126{
1127 const char *bios[] = { "scph1001", "scph5501", "scph7001" };
1128 const char *dir;
1129 char path[256];
1130 int i, ret, level;
1131 bool found_bios = false;
1132
1133 ret = emu_core_preinit();
1134 ret |= emu_core_init();
1135 if (ret != 0) {
1136 SysPrintf("PCSX init failed.\n");
1137 exit(1);
1138 }
1139
1140#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)
1141 posix_memalign(&vout_buf, 16, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
1142#else
1143 vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
1144#endif
1145
1146 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
1147 {
1148 snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s/", dir);
1149
1150 for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) {
1151 snprintf(path, sizeof(path), "%s/%s.bin", dir, bios[i]);
1152 found_bios = try_use_bios(path);
1153 if (found_bios)
1154 break;
1155 }
1156
1157 if (!found_bios)
1158 found_bios = find_any_bios(dir, path, sizeof(path));
1159 }
1160 if (found_bios) {
1161 SysPrintf("found BIOS file: %s\n", Config.Bios);
1162 }
1163 else
1164 {
1165 SysPrintf("no BIOS files found.\n");
1166 struct retro_message msg =
1167 {
1168 "no BIOS found, expect bugs!",
1169 180
1170 };
1171 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, (void*)&msg);
1172 }
1173
1174 level = 1;
1175 environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
1176
1177 environ_cb(RETRO_ENVIRONMENT_GET_CAN_DUPE, &vout_can_dupe);
1178 environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
1179
1180 /* Set how much slower PSX CPU runs * 100 (so that 200 is 2 times)
1181 * we have to do this because cache misses and some IO penalties
1182 * are not emulated. Warning: changing this may break compatibility. */
1183#ifdef __ARM_ARCH_7A__
1184 cycle_multiplier = 175;
1185#else
1186 cycle_multiplier = 200;
1187#endif
1188
1189 McdDisable[0] = 0;
1190 McdDisable[1] = 1;
1191 init_memcard(Mcd1Data);
1192
1193 SaveFuncs.open = save_open;
1194 SaveFuncs.read = save_read;
1195 SaveFuncs.write = save_write;
1196 SaveFuncs.seek = save_seek;
1197 SaveFuncs.close = save_close;
1198
1199 update_variables(false);
1200 check_system_specs();
1201}
1202
1203void retro_deinit(void)
1204{
1205 SysClose();
1206 free(vout_buf);
1207 vout_buf = NULL;
1208}
ARM optimized PCSX fork