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Merge pull request #634 from libretro/revert-633-revert-631-autoframeskip
[pcsx_rearmed.git] / frontend / libretro.c
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1/*
2 * (C) notaz, 2012,2014,2015
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#ifdef __MACH__
14#include <unistd.h>
15#include <sys/syscall.h>
16#endif
17
18#ifdef SWITCH
19#include <switch.h>
20#endif
21
22#include "../libpcsxcore/misc.h"
23#include "../libpcsxcore/psxcounters.h"
24#include "../libpcsxcore/psxmem_map.h"
25#include "../libpcsxcore/new_dynarec/new_dynarec.h"
26#include "../libpcsxcore/cdrom.h"
27#include "../libpcsxcore/cdriso.h"
28#include "../libpcsxcore/cheat.h"
29#include "../libpcsxcore/r3000a.h"
30#include "../plugins/dfsound/out.h"
31#include "../plugins/dfsound/spu_config.h"
32#include "../plugins/dfinput/externals.h"
33#include "cspace.h"
34#include "main.h"
35#include "menu.h"
36#include "plugin.h"
37#include "plugin_lib.h"
38#include "arm_features.h"
39#include "revision.h"
40
41#include <libretro.h>
42#include "libretro_core_options.h"
43
44#ifdef USE_LIBRETRO_VFS
45#include <streams/file_stream_transforms.h>
46#endif
47
48#ifdef _3DS
49#include "3ds/3ds_utils.h"
50#endif
51
52#define PORTS_NUMBER 8
53
54#ifndef MIN
55#define MIN(a, b) ((a) < (b) ? (a) : (b))
56#endif
57
58#ifndef MAX
59#define MAX(a, b) ((a) > (b) ? (a) : (b))
60#endif
61
62#define ISHEXDEC ((buf[cursor] >= '0') && (buf[cursor] <= '9')) || ((buf[cursor] >= 'a') && (buf[cursor] <= 'f')) || ((buf[cursor] >= 'A') && (buf[cursor] <= 'F'))
63
64#define INTERNAL_FPS_SAMPLE_PERIOD 64
65
66//hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
67static int rebootemu = 0;
68
69static retro_video_refresh_t video_cb;
70static retro_input_poll_t input_poll_cb;
71static retro_input_state_t input_state_cb;
72static retro_environment_t environ_cb;
73static retro_audio_sample_batch_t audio_batch_cb;
74static retro_set_rumble_state_t rumble_cb;
75static struct retro_log_callback logging;
76static retro_log_printf_t log_cb;
77
78static unsigned msg_interface_version = 0;
79
80static void *vout_buf;
81static void *vout_buf_ptr;
82static int vout_width, vout_height;
83static int vout_doffs_old, vout_fb_dirty;
84static bool vout_can_dupe;
85static bool duping_enable;
86static bool found_bios;
87static bool display_internal_fps = false;
88static unsigned frame_count = 0;
89static bool libretro_supports_bitmasks = false;
90#ifdef GPU_PEOPS
91static int show_advanced_gpu_peops_settings = -1;
92#endif
93#ifdef GPU_UNAI
94static int show_advanced_gpu_unai_settings = -1;
95#endif
96static int show_other_input_settings = -1;
97static float mouse_sensitivity = 1.0f;
98
99unsigned frameskip_type = 0;
100unsigned frameskip_threshold = 0;
101unsigned frameskip_counter = 0;
102unsigned frameskip_interval = 0;
103
104int retro_audio_buff_active = false;
105unsigned retro_audio_buff_occupancy = 0;
106int retro_audio_buff_underrun = false;
107
108unsigned retro_audio_latency = 0;
109int update_audio_latency = false;
110
111static unsigned previous_width = 0;
112static unsigned previous_height = 0;
113
114static int plugins_opened;
115static int is_pal_mode;
116
117/* memory card data */
118extern char Mcd1Data[MCD_SIZE];
119extern char Mcd2Data[MCD_SIZE];
120extern char McdDisable[2];
121
122/* PCSX ReARMed core calls and stuff */
123int in_type[8] = {
124 PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
125 PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
126 PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
127 PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE
128};
129int in_analog_left[8][2] = { { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 } };
130int in_analog_right[8][2] = { { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 } };
131unsigned short in_keystate[PORTS_NUMBER];
132int in_mouse[8][2];
133int multitap1 = 0;
134int multitap2 = 0;
135int in_enable_vibration = 1;
136
137// NegCon adjustment parameters
138// > The NegCon 'twist' action is somewhat awkward when mapped
139// to a standard analog stick -> user should be able to tweak
140// response/deadzone for comfort
141// > When response is linear, 'additional' deadzone (set here)
142// may be left at zero, since this is normally handled via in-game
143// options menus
144// > When response is non-linear, deadzone should be set to match the
145// controller being used (otherwise precision may be lost)
146// > negcon_linearity:
147// - 1: Response is linear - recommended when using racing wheel
148// peripherals, not recommended for standard gamepads
149// - 2: Response is quadratic - optimal setting for gamepads
150// - 3: Response is cubic - enables precise fine control, but
151// difficult to use...
152#define NEGCON_RANGE 0x7FFF
153static int negcon_deadzone = 0;
154static int negcon_linearity = 1;
155
156static bool axis_bounds_modifier;
157
158/* PSX max resolution is 640x512, but with enhancement it's 1024x512 */
159#define VOUT_MAX_WIDTH 1024
160#define VOUT_MAX_HEIGHT 512
161
162//Dummy functions
163bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) { return false; }
164void retro_unload_game(void) {}
165static int vout_open(void) { return 0; }
166static void vout_close(void) {}
167static int snd_init(void) { return 0; }
168static void snd_finish(void) {}
169static int snd_busy(void) { return 0; }
170
171#define GPU_PEOPS_ODD_EVEN_BIT (1 << 0)
172#define GPU_PEOPS_EXPAND_SCREEN_WIDTH (1 << 1)
173#define GPU_PEOPS_IGNORE_BRIGHTNESS (1 << 2)
174#define GPU_PEOPS_DISABLE_COORD_CHECK (1 << 3)
175#define GPU_PEOPS_LAZY_SCREEN_UPDATE (1 << 6)
176#define GPU_PEOPS_OLD_FRAME_SKIP (1 << 7)
177#define GPU_PEOPS_REPEATED_TRIANGLES (1 << 8)
178#define GPU_PEOPS_QUADS_WITH_TRIANGLES (1 << 9)
179#define GPU_PEOPS_FAKE_BUSY_STATE (1 << 10)
180
181static void init_memcard(char *mcd_data)
182{
183 unsigned off = 0;
184 unsigned i;
185
186 memset(mcd_data, 0, MCD_SIZE);
187
188 mcd_data[off++] = 'M';
189 mcd_data[off++] = 'C';
190 off += 0x7d;
191 mcd_data[off++] = 0x0e;
192
193 for (i = 0; i < 15; i++)
194 {
195 mcd_data[off++] = 0xa0;
196 off += 0x07;
197 mcd_data[off++] = 0xff;
198 mcd_data[off++] = 0xff;
199 off += 0x75;
200 mcd_data[off++] = 0xa0;
201 }
202
203 for (i = 0; i < 20; i++)
204 {
205 mcd_data[off++] = 0xff;
206 mcd_data[off++] = 0xff;
207 mcd_data[off++] = 0xff;
208 mcd_data[off++] = 0xff;
209 off += 0x04;
210 mcd_data[off++] = 0xff;
211 mcd_data[off++] = 0xff;
212 off += 0x76;
213 }
214}
215
216static void set_vout_fb()
217{
218 struct retro_framebuffer fb = { 0 };
219
220 fb.width = vout_width;
221 fb.height = vout_height;
222 fb.access_flags = RETRO_MEMORY_ACCESS_WRITE;
223
224 if (environ_cb(RETRO_ENVIRONMENT_GET_CURRENT_SOFTWARE_FRAMEBUFFER, &fb) && fb.format == RETRO_PIXEL_FORMAT_RGB565)
225 vout_buf_ptr = (uint16_t *)fb.data;
226 else
227 vout_buf_ptr = vout_buf;
228}
229
230static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
231{
232 vout_width = w;
233 vout_height = h;
234
235 if (previous_width != vout_width || previous_height != vout_height)
236 {
237 previous_width = vout_width;
238 previous_height = vout_height;
239
240 struct retro_system_av_info info;
241 retro_get_system_av_info(&info);
242 environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &info.geometry);
243 }
244
245 set_vout_fb();
246}
247
248#ifndef FRONTEND_SUPPORTS_RGB565
249static void convert(void *buf, size_t bytes)
250{
251 unsigned int i, v, *p = buf;
252
253 for (i = 0; i < bytes / 4; i++)
254 {
255 v = p[i];
256 p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
257 }
258}
259#endif
260
261static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
262{
263 unsigned short *dest = vout_buf_ptr;
264 const unsigned short *src = vram;
265 int dstride = vout_width, h1 = h;
266 int doffs;
267
268 if (vram == NULL)
269 {
270 // blanking
271 memset(vout_buf_ptr, 0, dstride * h * 2);
272 goto out;
273 }
274
275 doffs = (vout_height - h) * dstride;
276 doffs += (dstride - w) / 2 & ~1;
277 if (doffs != vout_doffs_old)
278 {
279 // clear borders
280 memset(vout_buf_ptr, 0, dstride * h * 2);
281 vout_doffs_old = doffs;
282 }
283 dest += doffs;
284
285 if (bgr24)
286 {
287 // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
288 for (; h1-- > 0; dest += dstride, src += stride)
289 {
290 bgr888_to_rgb565(dest, src, w * 3);
291 }
292 }
293 else
294 {
295 for (; h1-- > 0; dest += dstride, src += stride)
296 {
297 bgr555_to_rgb565(dest, src, w * 2);
298 }
299 }
300
301out:
302#ifndef FRONTEND_SUPPORTS_RGB565
303 convert(vout_buf_ptr, vout_width * vout_height * 2);
304#endif
305 vout_fb_dirty = 1;
306 pl_rearmed_cbs.flip_cnt++;
307}
308
309#ifdef _3DS
310typedef struct
311{
312 void *buffer;
313 uint32_t target_map;
314 size_t size;
315 enum psxMapTag tag;
316} psx_map_t;
317
318psx_map_t custom_psx_maps[] = {
319 { NULL, 0x13000000, 0x210000, MAP_TAG_RAM }, // 0x80000000
320 { NULL, 0x12800000, 0x010000, MAP_TAG_OTHER }, // 0x1f800000
321 { NULL, 0x12c00000, 0x080000, MAP_TAG_OTHER }, // 0x1fc00000
322 { NULL, 0x11000000, 0x800000, MAP_TAG_LUTS }, // 0x08000000
323 { NULL, 0x12000000, 0x200000, MAP_TAG_VRAM }, // 0x00000000
324};
325
326void *pl_3ds_mmap(unsigned long addr, size_t size, int is_fixed,
327 enum psxMapTag tag)
328{
329 (void)is_fixed;
330 (void)addr;
331
332 if (__ctr_svchax)
333 {
334 psx_map_t *custom_map = custom_psx_maps;
335
336 for (; custom_map->size; custom_map++)
337 {
338 if ((custom_map->size == size) && (custom_map->tag == tag))
339 {
340 uint32_t ptr_aligned, tmp;
341
342 custom_map->buffer = malloc(size + 0x1000);
343 ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
344
345 if (svcControlMemory(&tmp, (void *)custom_map->target_map, (void *)ptr_aligned, size, MEMOP_MAP, 0x3) < 0)
346 {
347 SysPrintf("could not map memory @0x%08X\n", custom_map->target_map);
348 exit(1);
349 }
350
351 return (void *)custom_map->target_map;
352 }
353 }
354 }
355
356 return malloc(size);
357}
358
359void pl_3ds_munmap(void *ptr, size_t size, enum psxMapTag tag)
360{
361 (void)tag;
362
363 if (__ctr_svchax)
364 {
365 psx_map_t *custom_map = custom_psx_maps;
366
367 for (; custom_map->size; custom_map++)
368 {
369 if ((custom_map->target_map == (uint32_t)ptr))
370 {
371 uint32_t ptr_aligned, tmp;
372
373 ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
374
375 svcControlMemory(&tmp, (void *)custom_map->target_map, (void *)ptr_aligned, size, MEMOP_UNMAP, 0x3);
376
377 free(custom_map->buffer);
378 custom_map->buffer = NULL;
379 return;
380 }
381 }
382 }
383
384 free(ptr);
385}
386#endif
387
388#ifdef VITA
389typedef struct
390{
391 void *buffer;
392 uint32_t target_map;
393 size_t size;
394 enum psxMapTag tag;
395} psx_map_t;
396
397void *addr = NULL;
398
399psx_map_t custom_psx_maps[] = {
400 { NULL, NULL, 0x210000, MAP_TAG_RAM }, // 0x80000000
401 { NULL, NULL, 0x010000, MAP_TAG_OTHER }, // 0x1f800000
402 { NULL, NULL, 0x080000, MAP_TAG_OTHER }, // 0x1fc00000
403 { NULL, NULL, 0x800000, MAP_TAG_LUTS }, // 0x08000000
404 { NULL, NULL, 0x200000, MAP_TAG_VRAM }, // 0x00000000
405};
406
407int init_vita_mmap()
408{
409 int n;
410 void *tmpaddr;
411 addr = malloc(64 * 1024 * 1024);
412 if (addr == NULL)
413 return -1;
414 tmpaddr = ((u32)(addr + 0xFFFFFF)) & ~0xFFFFFF;
415 custom_psx_maps[0].buffer = tmpaddr + 0x2000000;
416 custom_psx_maps[1].buffer = tmpaddr + 0x1800000;
417 custom_psx_maps[2].buffer = tmpaddr + 0x1c00000;
418 custom_psx_maps[3].buffer = tmpaddr + 0x0000000;
419 custom_psx_maps[4].buffer = tmpaddr + 0x1000000;
420#if 0
421 for(n = 0; n < 5; n++){
422 sceClibPrintf("addr reserved %x\n",custom_psx_maps[n].buffer);
423 }
424#endif
425 return 0;
426}
427
428void deinit_vita_mmap()
429{
430 free(addr);
431}
432
433void *pl_vita_mmap(unsigned long addr, size_t size, int is_fixed,
434 enum psxMapTag tag)
435{
436 (void)is_fixed;
437 (void)addr;
438
439 psx_map_t *custom_map = custom_psx_maps;
440
441 for (; custom_map->size; custom_map++)
442 {
443 if ((custom_map->size == size) && (custom_map->tag == tag))
444 {
445 return custom_map->buffer;
446 }
447 }
448
449 return malloc(size);
450}
451
452void pl_vita_munmap(void *ptr, size_t size, enum psxMapTag tag)
453{
454 (void)tag;
455
456 psx_map_t *custom_map = custom_psx_maps;
457
458 for (; custom_map->size; custom_map++)
459 {
460 if ((custom_map->buffer == ptr))
461 {
462 return;
463 }
464 }
465
466 free(ptr);
467}
468#endif
469
470static void *pl_mmap(unsigned int size)
471{
472 return psxMap(0, size, 0, MAP_TAG_VRAM);
473}
474
475static void pl_munmap(void *ptr, unsigned int size)
476{
477 psxUnmap(ptr, size, MAP_TAG_VRAM);
478}
479
480struct rearmed_cbs pl_rearmed_cbs = {
481 .pl_vout_open = vout_open,
482 .pl_vout_set_mode = vout_set_mode,
483 .pl_vout_flip = vout_flip,
484 .pl_vout_close = vout_close,
485 .mmap = pl_mmap,
486 .munmap = pl_munmap,
487 /* from psxcounters */
488 .gpu_hcnt = &hSyncCount,
489 .gpu_frame_count = &frame_counter,
490};
491
492void pl_frame_limit(void)
493{
494 /* called once per frame, make psxCpu->Execute() above return */
495 stop = 1;
496}
497
498void pl_timing_prepare(int is_pal)
499{
500 is_pal_mode = is_pal;
501}
502
503void plat_trigger_vibrate(int pad, int low, int high)
504{
505 if (!rumble_cb)
506 return;
507
508 if (in_enable_vibration)
509 {
510 rumble_cb(pad, RETRO_RUMBLE_STRONG, high << 8);
511 rumble_cb(pad, RETRO_RUMBLE_WEAK, low ? 0xffff : 0x0);
512 }
513}
514
515void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
516{
517}
518
519/* sound calls */
520static void snd_feed(void *buf, int bytes)
521{
522 if (audio_batch_cb != NULL)
523 audio_batch_cb(buf, bytes / 4);
524}
525
526void out_register_libretro(struct out_driver *drv)
527{
528 drv->name = "libretro";
529 drv->init = snd_init;
530 drv->finish = snd_finish;
531 drv->busy = snd_busy;
532 drv->feed = snd_feed;
533}
534
535#define RETRO_DEVICE_PSE_STANDARD RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 0)
536#define RETRO_DEVICE_PSE_ANALOG RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 0)
537#define RETRO_DEVICE_PSE_DUALSHOCK RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 1)
538#define RETRO_DEVICE_PSE_NEGCON RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 2)
539#define RETRO_DEVICE_PSE_GUNCON RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_LIGHTGUN, 0)
540#define RETRO_DEVICE_PSE_MOUSE RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_MOUSE, 0)
541
542static char *get_pse_pad_label[] = {
543 "none", "mouse", "negcon", "konami gun", "standard", "analog", "guncon", "dualshock"
544};
545
546static const struct retro_controller_description pads[7] =
547{
548 { "standard", RETRO_DEVICE_JOYPAD },
549 { "analog", RETRO_DEVICE_PSE_ANALOG },
550 { "dualshock", RETRO_DEVICE_PSE_DUALSHOCK },
551 { "negcon", RETRO_DEVICE_PSE_NEGCON },
552 { "guncon", RETRO_DEVICE_PSE_GUNCON },
553 { "mouse", RETRO_DEVICE_PSE_MOUSE },
554 { NULL, 0 },
555};
556
557static const struct retro_controller_info ports[9] =
558{
559 { pads, 7 },
560 { pads, 7 },
561 { pads, 7 },
562 { pads, 7 },
563 { pads, 7 },
564 { pads, 7 },
565 { pads, 7 },
566 { pads, 7 },
567 { NULL, 0 },
568};
569
570/* libretro */
571void retro_set_environment(retro_environment_t cb)
572{
573#ifdef USE_LIBRETRO_VFS
574 struct retro_vfs_interface_info vfs_iface_info;
575#endif
576
577 environ_cb = cb;
578
579 if (cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &logging))
580 log_cb = logging.log;
581
582 environ_cb(RETRO_ENVIRONMENT_SET_CONTROLLER_INFO, (void*)ports);
583 libretro_set_core_options(environ_cb);
584
585#ifdef USE_LIBRETRO_VFS
586 vfs_iface_info.required_interface_version = 1;
587 vfs_iface_info.iface = NULL;
588 if (environ_cb(RETRO_ENVIRONMENT_GET_VFS_INTERFACE, &vfs_iface_info))
589 filestream_vfs_init(&vfs_iface_info);
590#endif
591}
592
593void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
594void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
595void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
596void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
597void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
598
599unsigned retro_api_version(void)
600{
601 return RETRO_API_VERSION;
602}
603
604static void update_multitap(void)
605{
606 struct retro_variable var = { 0 };
607
608 multitap1 = 0;
609 multitap2 = 0;
610
611 var.value = NULL;
612 var.key = "pcsx_rearmed_multitap";
613 if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value))
614 {
615 if (strcmp(var.value, "port 1") == 0)
616 multitap1 = 1;
617 else if (strcmp(var.value, "port 2") == 0)
618 multitap2 = 1;
619 else if (strcmp(var.value, "ports 1 and 2") == 0)
620 {
621 multitap1 = 1;
622 multitap2 = 1;
623 }
624 }
625}
626
627void retro_set_controller_port_device(unsigned port, unsigned device)
628{
629 if (port >= PORTS_NUMBER)
630 return;
631
632 switch (device)
633 {
634 case RETRO_DEVICE_JOYPAD:
635 case RETRO_DEVICE_PSE_STANDARD:
636 in_type[port] = PSE_PAD_TYPE_STANDARD;
637 break;
638 case RETRO_DEVICE_PSE_ANALOG:
639 in_type[port] = PSE_PAD_TYPE_ANALOGJOY;
640 break;
641 case RETRO_DEVICE_PSE_DUALSHOCK:
642 in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
643 break;
644 case RETRO_DEVICE_PSE_MOUSE:
645 in_type[port] = PSE_PAD_TYPE_MOUSE;
646 break;
647 case RETRO_DEVICE_PSE_NEGCON:
648 in_type[port] = PSE_PAD_TYPE_NEGCON;
649 break;
650 case RETRO_DEVICE_PSE_GUNCON:
651 in_type[port] = PSE_PAD_TYPE_GUNCON;
652 break;
653 case RETRO_DEVICE_NONE:
654 default:
655 in_type[port] = PSE_PAD_TYPE_NONE;
656 break;
657 }
658
659 SysPrintf("port: %u device: %s\n", port + 1, get_pse_pad_label[in_type[port]]);
660}
661
662void retro_get_system_info(struct retro_system_info *info)
663{
664#ifndef GIT_VERSION
665#define GIT_VERSION ""
666#endif
667 memset(info, 0, sizeof(*info));
668 info->library_name = "PCSX-ReARMed";
669 info->library_version = "r23l" GIT_VERSION;
670 info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn|m3u|chd";
671 info->need_fullpath = true;
672}
673
674void retro_get_system_av_info(struct retro_system_av_info *info)
675{
676 unsigned geom_height = vout_height > 0 ? vout_height : 240;
677 unsigned geom_width = vout_width > 0 ? vout_width : 320;
678
679 memset(info, 0, sizeof(*info));
680 info->timing.fps = is_pal_mode ? 50.0 : 60.0;
681 info->timing.sample_rate = 44100.0;
682 info->geometry.base_width = geom_width;
683 info->geometry.base_height = geom_height;
684 info->geometry.max_width = VOUT_MAX_WIDTH;
685 info->geometry.max_height = VOUT_MAX_HEIGHT;
686 info->geometry.aspect_ratio = 4.0 / 3.0;
687}
688
689/* savestates */
690size_t retro_serialize_size(void)
691{
692 // it's currently 4380651-4397047 bytes,
693 // but have some reserved for future
694 return 0x440000;
695}
696
697struct save_fp
698{
699 char *buf;
700 size_t pos;
701 int is_write;
702};
703
704static void *save_open(const char *name, const char *mode)
705{
706 struct save_fp *fp;
707
708 if (name == NULL || mode == NULL)
709 return NULL;
710
711 fp = malloc(sizeof(*fp));
712 if (fp == NULL)
713 return NULL;
714
715 fp->buf = (char *)name;
716 fp->pos = 0;
717 fp->is_write = (mode[0] == 'w' || mode[1] == 'w');
718
719 return fp;
720}
721
722static int save_read(void *file, void *buf, u32 len)
723{
724 struct save_fp *fp = file;
725 if (fp == NULL || buf == NULL)
726 return -1;
727
728 memcpy(buf, fp->buf + fp->pos, len);
729 fp->pos += len;
730 return len;
731}
732
733static int save_write(void *file, const void *buf, u32 len)
734{
735 struct save_fp *fp = file;
736 if (fp == NULL || buf == NULL)
737 return -1;
738
739 memcpy(fp->buf + fp->pos, buf, len);
740 fp->pos += len;
741 return len;
742}
743
744static long save_seek(void *file, long offs, int whence)
745{
746 struct save_fp *fp = file;
747 if (fp == NULL)
748 return -1;
749
750 switch (whence)
751 {
752 case SEEK_CUR:
753 fp->pos += offs;
754 return fp->pos;
755 case SEEK_SET:
756 fp->pos = offs;
757 return fp->pos;
758 default:
759 return -1;
760 }
761}
762
763static void save_close(void *file)
764{
765 struct save_fp *fp = file;
766 size_t r_size = retro_serialize_size();
767 if (fp == NULL)
768 return;
769
770 if (fp->pos > r_size)
771 SysPrintf("ERROR: save buffer overflow detected\n");
772 else if (fp->is_write && fp->pos < r_size)
773 // make sure we don't save trash in leftover space
774 memset(fp->buf + fp->pos, 0, r_size - fp->pos);
775 free(fp);
776}
777
778bool retro_serialize(void *data, size_t size)
779{
780 int ret = SaveState(data);
781 return ret == 0 ? true : false;
782}
783
784bool retro_unserialize(const void *data, size_t size)
785{
786 int ret = LoadState(data);
787 return ret == 0 ? true : false;
788}
789
790/* cheats */
791void retro_cheat_reset(void)
792{
793 ClearAllCheats();
794}
795
796void retro_cheat_set(unsigned index, bool enabled, const char *code)
797{
798 char buf[256];
799 int ret;
800
801 // cheat funcs are destructive, need a copy..
802 strncpy(buf, code, sizeof(buf));
803 buf[sizeof(buf) - 1] = 0;
804
805 //Prepare buffered cheat for PCSX's AddCheat fucntion.
806 int cursor = 0;
807 int nonhexdec = 0;
808 while (buf[cursor])
809 {
810 if (!(ISHEXDEC))
811 {
812 if (++nonhexdec % 2)
813 {
814 buf[cursor] = ' ';
815 }
816 else
817 {
818 buf[cursor] = '\n';
819 }
820 }
821 cursor++;
822 }
823
824 if (index < NumCheats)
825 ret = EditCheat(index, "", buf);
826 else
827 ret = AddCheat("", buf);
828
829 if (ret != 0)
830 SysPrintf("Failed to set cheat %#u\n", index);
831 else if (index < NumCheats)
832 Cheats[index].Enabled = enabled;
833}
834
835// just in case, maybe a win-rt port in the future?
836#ifdef _WIN32
837#define SLASH '\\'
838#else
839#define SLASH '/'
840#endif
841
842#ifndef PATH_MAX
843#define PATH_MAX 4096
844#endif
845
846/* multidisk support */
847static unsigned int disk_initial_index;
848static char disk_initial_path[PATH_MAX];
849static bool disk_ejected;
850static unsigned int disk_current_index;
851static unsigned int disk_count;
852static struct disks_state
853{
854 char *fname;
855 char *flabel;
856 int internal_index; // for multidisk eboots
857} disks[8];
858
859static void get_disk_label(char *disk_label, const char *disk_path, size_t len)
860{
861 const char *base = NULL;
862
863 if (!disk_path || (*disk_path == '\0'))
864 return;
865
866 base = strrchr(disk_path, SLASH);
867 if (!base)
868 base = disk_path;
869
870 if (*base == SLASH)
871 base++;
872
873 strncpy(disk_label, base, len - 1);
874 disk_label[len - 1] = '\0';
875
876 char *ext = strrchr(disk_label, '.');
877 if (ext)
878 *ext = '\0';
879}
880
881static void disk_init(void)
882{
883 size_t i;
884
885 disk_ejected = false;
886 disk_current_index = 0;
887 disk_count = 0;
888
889 for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++)
890 {
891 if (disks[i].fname != NULL)
892 {
893 free(disks[i].fname);
894 disks[i].fname = NULL;
895 }
896 if (disks[i].flabel != NULL)
897 {
898 free(disks[i].flabel);
899 disks[i].flabel = NULL;
900 }
901 disks[i].internal_index = 0;
902 }
903}
904
905static bool disk_set_eject_state(bool ejected)
906{
907 // weird PCSX API..
908 SetCdOpenCaseTime(ejected ? -1 : (time(NULL) + 2));
909 LidInterrupt();
910
911 disk_ejected = ejected;
912 return true;
913}
914
915static bool disk_get_eject_state(void)
916{
917 /* can't be controlled by emulated software */
918 return disk_ejected;
919}
920
921static unsigned int disk_get_image_index(void)
922{
923 return disk_current_index;
924}
925
926static bool disk_set_image_index(unsigned int index)
927{
928 if (index >= sizeof(disks) / sizeof(disks[0]))
929 return false;
930
931 CdromId[0] = '\0';
932 CdromLabel[0] = '\0';
933
934 if (disks[index].fname == NULL)
935 {
936 SysPrintf("missing disk #%u\n", index);
937 CDR_shutdown();
938
939 // RetroArch specifies "no disk" with index == count,
940 // so don't fail here..
941 disk_current_index = index;
942 return true;
943 }
944
945 SysPrintf("switching to disk %u: \"%s\" #%d\n", index,
946 disks[index].fname, disks[index].internal_index);
947
948 cdrIsoMultidiskSelect = disks[index].internal_index;
949 set_cd_image(disks[index].fname);
950 if (ReloadCdromPlugin() < 0)
951 {
952 SysPrintf("failed to load cdr plugin\n");
953 return false;
954 }
955 if (CDR_open() < 0)
956 {
957 SysPrintf("failed to open cdr plugin\n");
958 return false;
959 }
960
961 if (!disk_ejected)
962 {
963 SetCdOpenCaseTime(time(NULL) + 2);
964 LidInterrupt();
965 }
966
967 disk_current_index = index;
968 return true;
969}
970
971static unsigned int disk_get_num_images(void)
972{
973 return disk_count;
974}
975
976static bool disk_replace_image_index(unsigned index,
977 const struct retro_game_info *info)
978{
979 char *old_fname = NULL;
980 char *old_flabel = NULL;
981 bool ret = true;
982
983 if (index >= sizeof(disks) / sizeof(disks[0]))
984 return false;
985
986 old_fname = disks[index].fname;
987 old_flabel = disks[index].flabel;
988
989 disks[index].fname = NULL;
990 disks[index].flabel = NULL;
991 disks[index].internal_index = 0;
992
993 if (info != NULL)
994 {
995 char disk_label[PATH_MAX];
996 disk_label[0] = '\0';
997
998 disks[index].fname = strdup(info->path);
999
1000 get_disk_label(disk_label, info->path, PATH_MAX);
1001 disks[index].flabel = strdup(disk_label);
1002
1003 if (index == disk_current_index)
1004 ret = disk_set_image_index(index);
1005 }
1006
1007 if (old_fname != NULL)
1008 free(old_fname);
1009
1010 if (old_flabel != NULL)
1011 free(old_flabel);
1012
1013 return ret;
1014}
1015
1016static bool disk_add_image_index(void)
1017{
1018 if (disk_count >= 8)
1019 return false;
1020
1021 disk_count++;
1022 return true;
1023}
1024
1025static bool disk_set_initial_image(unsigned index, const char *path)
1026{
1027 if (index >= sizeof(disks) / sizeof(disks[0]))
1028 return false;
1029
1030 if (!path || (*path == '\0'))
1031 return false;
1032
1033 disk_initial_index = index;
1034
1035 strncpy(disk_initial_path, path, sizeof(disk_initial_path) - 1);
1036 disk_initial_path[sizeof(disk_initial_path) - 1] = '\0';
1037
1038 return true;
1039}
1040
1041static bool disk_get_image_path(unsigned index, char *path, size_t len)
1042{
1043 const char *fname = NULL;
1044
1045 if (len < 1)
1046 return false;
1047
1048 if (index >= sizeof(disks) / sizeof(disks[0]))
1049 return false;
1050
1051 fname = disks[index].fname;
1052
1053 if (!fname || (*fname == '\0'))
1054 return false;
1055
1056 strncpy(path, fname, len - 1);
1057 path[len - 1] = '\0';
1058
1059 return true;
1060}
1061
1062static bool disk_get_image_label(unsigned index, char *label, size_t len)
1063{
1064 const char *flabel = NULL;
1065
1066 if (len < 1)
1067 return false;
1068
1069 if (index >= sizeof(disks) / sizeof(disks[0]))
1070 return false;
1071
1072 flabel = disks[index].flabel;
1073
1074 if (!flabel || (*flabel == '\0'))
1075 return false;
1076
1077 strncpy(label, flabel, len - 1);
1078 label[len - 1] = '\0';
1079
1080 return true;
1081}
1082
1083static struct retro_disk_control_callback disk_control = {
1084 .set_eject_state = disk_set_eject_state,
1085 .get_eject_state = disk_get_eject_state,
1086 .get_image_index = disk_get_image_index,
1087 .set_image_index = disk_set_image_index,
1088 .get_num_images = disk_get_num_images,
1089 .replace_image_index = disk_replace_image_index,
1090 .add_image_index = disk_add_image_index,
1091};
1092
1093static struct retro_disk_control_ext_callback disk_control_ext = {
1094 .set_eject_state = disk_set_eject_state,
1095 .get_eject_state = disk_get_eject_state,
1096 .get_image_index = disk_get_image_index,
1097 .set_image_index = disk_set_image_index,
1098 .get_num_images = disk_get_num_images,
1099 .replace_image_index = disk_replace_image_index,
1100 .add_image_index = disk_add_image_index,
1101 .set_initial_image = disk_set_initial_image,
1102 .get_image_path = disk_get_image_path,
1103 .get_image_label = disk_get_image_label,
1104};
1105
1106static char base_dir[1024];
1107
1108static bool read_m3u(const char *file)
1109{
1110 char line[1024];
1111 char name[PATH_MAX];
1112 FILE *fp = fopen(file, "r");
1113 if (!fp)
1114 return false;
1115
1116 while (fgets(line, sizeof(line), fp) && disk_count < sizeof(disks) / sizeof(disks[0]))
1117 {
1118 if (line[0] == '#')
1119 continue;
1120 char *carrige_return = strchr(line, '\r');
1121 if (carrige_return)
1122 *carrige_return = '\0';
1123 char *newline = strchr(line, '\n');
1124 if (newline)
1125 *newline = '\0';
1126
1127 if (line[0] != '\0')
1128 {
1129 char disk_label[PATH_MAX];
1130 disk_label[0] = '\0';
1131
1132 snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line);
1133 disks[disk_count].fname = strdup(name);
1134
1135 get_disk_label(disk_label, name, PATH_MAX);
1136 disks[disk_count].flabel = strdup(disk_label);
1137
1138 disk_count++;
1139 }
1140 }
1141
1142 fclose(fp);
1143 return (disk_count != 0);
1144}
1145
1146static void extract_directory(char *buf, const char *path, size_t size)
1147{
1148 char *base;
1149 strncpy(buf, path, size - 1);
1150 buf[size - 1] = '\0';
1151
1152 base = strrchr(buf, '/');
1153 if (!base)
1154 base = strrchr(buf, '\\');
1155
1156 if (base)
1157 *base = '\0';
1158 else
1159 {
1160 buf[0] = '.';
1161 buf[1] = '\0';
1162 }
1163}
1164
1165#if defined(__QNX__) || defined(_WIN32)
1166/* Blackberry QNX doesn't have strcasestr */
1167
1168/*
1169 * Find the first occurrence of find in s, ignore case.
1170 */
1171char *
1172strcasestr(const char *s, const char *find)
1173{
1174 char c, sc;
1175 size_t len;
1176
1177 if ((c = *find++) != 0)
1178 {
1179 c = tolower((unsigned char)c);
1180 len = strlen(find);
1181 do
1182 {
1183 do
1184 {
1185 if ((sc = *s++) == 0)
1186 return (NULL);
1187 } while ((char)tolower((unsigned char)sc) != c);
1188 } while (strncasecmp(s, find, len) != 0);
1189 s--;
1190 }
1191 return ((char *)s);
1192}
1193#endif
1194
1195static void set_retro_memmap(void)
1196{
1197#ifndef NDEBUG
1198 struct retro_memory_map retromap = { 0 };
1199 struct retro_memory_descriptor mmap = {
1200 0, psxM, 0, 0, 0, 0, 0x200000
1201 };
1202
1203 retromap.descriptors = &mmap;
1204 retromap.num_descriptors = 1;
1205
1206 environ_cb(RETRO_ENVIRONMENT_SET_MEMORY_MAPS, &retromap);
1207#endif
1208}
1209
1210static void retro_audio_buff_status_cb(
1211 bool active, unsigned occupancy, bool underrun_likely)
1212{
1213 retro_audio_buff_active = active;
1214 retro_audio_buff_occupancy = occupancy;
1215 retro_audio_buff_underrun = underrun_likely;
1216}
1217
1218static void retro_set_audio_buff_status_cb(void)
1219{
1220 if (frameskip_type > 0)
1221 {
1222 struct retro_audio_buffer_status_callback buf_status_cb;
1223
1224 buf_status_cb.callback = retro_audio_buff_status_cb;
1225 if (!environ_cb(RETRO_ENVIRONMENT_SET_AUDIO_BUFFER_STATUS_CALLBACK,
1226 &buf_status_cb))
1227 {
1228 retro_audio_buff_active = false;
1229 retro_audio_buff_occupancy = 0;
1230 retro_audio_buff_underrun = false;
1231 retro_audio_latency = 0;
1232 }
1233 else
1234 {
1235 /* Frameskip is enabled - increase frontend
1236 * audio latency to minimise potential
1237 * buffer underruns */
1238 uint32_t frame_time_usec = 1000000.0 / (is_pal_mode ? 50.0 : 60.0);
1239
1240 /* Set latency to 6x current frame time... */
1241 retro_audio_latency = (unsigned)(6 * frame_time_usec / 1000);
1242
1243 /* ...then round up to nearest multiple of 32 */
1244 retro_audio_latency = (retro_audio_latency + 0x1F) & ~0x1F;
1245 }
1246 }
1247 else
1248 {
1249 environ_cb(RETRO_ENVIRONMENT_SET_AUDIO_BUFFER_STATUS_CALLBACK, NULL);
1250 retro_audio_latency = 0;
1251 }
1252
1253 update_audio_latency = true;
1254}
1255
1256static void update_variables(bool in_flight);
1257bool retro_load_game(const struct retro_game_info *info)
1258{
1259 size_t i;
1260 unsigned int cd_index = 0;
1261 bool is_m3u = (strcasestr(info->path, ".m3u") != NULL);
1262
1263 struct retro_input_descriptor desc[] = {
1264#define JOYP(port) \
1265 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, \
1266 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, \
1267 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, \
1268 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, \
1269 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" }, \
1270 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" }, \
1271 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" }, \
1272 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" }, \
1273 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" }, \
1274 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" }, \
1275 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" }, \
1276 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" }, \
1277 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" }, \
1278 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" }, \
1279 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" }, \
1280 { port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, \
1281 { port, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" }, \
1282 { port, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" }, \
1283 { port, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" }, \
1284 { port, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1285
1286 JOYP(0)
1287 JOYP(1)
1288 JOYP(2)
1289 JOYP(3)
1290 JOYP(4)
1291 JOYP(5)
1292 JOYP(6)
1293 JOYP(7)
1294
1295 { 0 },
1296 };
1297
1298 frame_count = 0;
1299
1300 environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
1301
1302#ifdef FRONTEND_SUPPORTS_RGB565
1303 enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
1304 if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
1305 {
1306 SysPrintf("RGB565 supported, using it\n");
1307 }
1308#endif
1309
1310 if (info == NULL || info->path == NULL)
1311 {
1312 SysPrintf("info->path required\n");
1313 return false;
1314 }
1315
1316 update_variables(false);
1317
1318 if (plugins_opened)
1319 {
1320 ClosePlugins();
1321 plugins_opened = 0;
1322 }
1323
1324 disk_init();
1325
1326 extract_directory(base_dir, info->path, sizeof(base_dir));
1327
1328 if (is_m3u)
1329 {
1330 if (!read_m3u(info->path))
1331 {
1332 log_cb(RETRO_LOG_INFO, "failed to read m3u file\n");
1333 return false;
1334 }
1335 }
1336 else
1337 {
1338 char disk_label[PATH_MAX];
1339 disk_label[0] = '\0';
1340
1341 disk_count = 1;
1342 disks[0].fname = strdup(info->path);
1343
1344 get_disk_label(disk_label, info->path, PATH_MAX);
1345 disks[0].flabel = strdup(disk_label);
1346 }
1347
1348 /* If this is an M3U file, attempt to set the
1349 * initial disk image */
1350 if (is_m3u && (disk_initial_index > 0) && (disk_initial_index < disk_count))
1351 {
1352 const char *fname = disks[disk_initial_index].fname;
1353
1354 if (fname && (*fname != '\0'))
1355 if (strcmp(disk_initial_path, fname) == 0)
1356 cd_index = disk_initial_index;
1357 }
1358
1359 set_cd_image(disks[cd_index].fname);
1360 disk_current_index = cd_index;
1361
1362 /* have to reload after set_cd_image for correct cdr plugin */
1363 if (LoadPlugins() == -1)
1364 {
1365 log_cb(RETRO_LOG_INFO, "failed to load plugins\n");
1366 return false;
1367 }
1368
1369 plugins_opened = 1;
1370 NetOpened = 0;
1371
1372 if (OpenPlugins() == -1)
1373 {
1374 log_cb(RETRO_LOG_INFO, "failed to open plugins\n");
1375 return false;
1376 }
1377
1378 /* Handle multi-disk images (i.e. PBP)
1379 * > Cannot do this until after OpenPlugins() is
1380 * called (since this sets the value of
1381 * cdrIsoMultidiskCount) */
1382 if (!is_m3u && (cdrIsoMultidiskCount > 1))
1383 {
1384 disk_count = cdrIsoMultidiskCount < 8 ? cdrIsoMultidiskCount : 8;
1385
1386 /* Small annoyance: We need to change the label
1387 * of disk 0, so have to clear existing entries */
1388 if (disks[0].fname != NULL)
1389 free(disks[0].fname);
1390 disks[0].fname = NULL;
1391
1392 if (disks[0].flabel != NULL)
1393 free(disks[0].flabel);
1394 disks[0].flabel = NULL;
1395
1396 for (i = 0; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++)
1397 {
1398 char disk_name[PATH_MAX - 16] = { 0 };
1399 char disk_label[PATH_MAX] = { 0 };
1400
1401 disks[i].fname = strdup(info->path);
1402
1403 get_disk_label(disk_name, info->path, sizeof(disk_name));
1404 snprintf(disk_label, sizeof(disk_label), "%s #%u", disk_name, (unsigned)i + 1);
1405 disks[i].flabel = strdup(disk_label);
1406
1407 disks[i].internal_index = i;
1408 }
1409
1410 /* This is not an M3U file, so initial disk
1411 * image has not yet been set - attempt to
1412 * do so now */
1413 if ((disk_initial_index > 0) && (disk_initial_index < disk_count))
1414 {
1415 const char *fname = disks[disk_initial_index].fname;
1416
1417 if (fname && (*fname != '\0'))
1418 if (strcmp(disk_initial_path, fname) == 0)
1419 cd_index = disk_initial_index;
1420 }
1421
1422 if (cd_index > 0)
1423 {
1424 CdromId[0] = '\0';
1425 CdromLabel[0] = '\0';
1426
1427 cdrIsoMultidiskSelect = disks[cd_index].internal_index;
1428 disk_current_index = cd_index;
1429 set_cd_image(disks[cd_index].fname);
1430
1431 if (ReloadCdromPlugin() < 0)
1432 {
1433 log_cb(RETRO_LOG_INFO, "failed to reload cdr plugins\n");
1434 return false;
1435 }
1436 if (CDR_open() < 0)
1437 {
1438 log_cb(RETRO_LOG_INFO, "failed to open cdr plugin\n");
1439 return false;
1440 }
1441 }
1442 }
1443
1444 /* set ports to use "standard controller" initially */
1445 for (i = 0; i < 8; ++i)
1446 in_type[i] = PSE_PAD_TYPE_STANDARD;
1447
1448 plugin_call_rearmed_cbs();
1449 /* dfinput_activate(); */
1450
1451 if (CheckCdrom() == -1)
1452 {
1453 log_cb(RETRO_LOG_INFO, "unsupported/invalid CD image: %s\n", info->path);
1454 return false;
1455 }
1456
1457 SysReset();
1458
1459 if (LoadCdrom() == -1)
1460 {
1461 log_cb(RETRO_LOG_INFO, "could not load CD\n");
1462 return false;
1463 }
1464 emu_on_new_cd(0);
1465
1466 set_retro_memmap();
1467 retro_set_audio_buff_status_cb();
1468
1469 return true;
1470}
1471
1472unsigned retro_get_region(void)
1473{
1474 return is_pal_mode ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
1475}
1476
1477void *retro_get_memory_data(unsigned id)
1478{
1479 if (id == RETRO_MEMORY_SAVE_RAM)
1480 return Mcd1Data;
1481 else if (id == RETRO_MEMORY_SYSTEM_RAM)
1482 return psxM;
1483 else
1484 return NULL;
1485}
1486
1487size_t retro_get_memory_size(unsigned id)
1488{
1489 if (id == RETRO_MEMORY_SAVE_RAM)
1490 return MCD_SIZE;
1491 else if (id == RETRO_MEMORY_SYSTEM_RAM)
1492 return 0x200000;
1493 else
1494 return 0;
1495}
1496
1497void retro_reset(void)
1498{
1499 //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
1500 rebootemu = 1;
1501 //SysReset();
1502}
1503
1504static const unsigned short retro_psx_map[] = {
1505 [RETRO_DEVICE_ID_JOYPAD_B] = 1 << DKEY_CROSS,
1506 [RETRO_DEVICE_ID_JOYPAD_Y] = 1 << DKEY_SQUARE,
1507 [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT,
1508 [RETRO_DEVICE_ID_JOYPAD_START] = 1 << DKEY_START,
1509 [RETRO_DEVICE_ID_JOYPAD_UP] = 1 << DKEY_UP,
1510 [RETRO_DEVICE_ID_JOYPAD_DOWN] = 1 << DKEY_DOWN,
1511 [RETRO_DEVICE_ID_JOYPAD_LEFT] = 1 << DKEY_LEFT,
1512 [RETRO_DEVICE_ID_JOYPAD_RIGHT] = 1 << DKEY_RIGHT,
1513 [RETRO_DEVICE_ID_JOYPAD_A] = 1 << DKEY_CIRCLE,
1514 [RETRO_DEVICE_ID_JOYPAD_X] = 1 << DKEY_TRIANGLE,
1515 [RETRO_DEVICE_ID_JOYPAD_L] = 1 << DKEY_L1,
1516 [RETRO_DEVICE_ID_JOYPAD_R] = 1 << DKEY_R1,
1517 [RETRO_DEVICE_ID_JOYPAD_L2] = 1 << DKEY_L2,
1518 [RETRO_DEVICE_ID_JOYPAD_R2] = 1 << DKEY_R2,
1519 [RETRO_DEVICE_ID_JOYPAD_L3] = 1 << DKEY_L3,
1520 [RETRO_DEVICE_ID_JOYPAD_R3] = 1 << DKEY_R3,
1521};
1522#define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))
1523
1524//Percentage distance of screen to adjust
1525static int GunconAdjustX = 0;
1526static int GunconAdjustY = 0;
1527
1528//Used when out by a percentage
1529static float GunconAdjustRatioX = 1;
1530static float GunconAdjustRatioY = 1;
1531
1532static void update_variables(bool in_flight)
1533{
1534 struct retro_variable var;
1535#ifdef GPU_PEOPS
1536 int gpu_peops_fix = 0;
1537#endif
1538 unsigned prev_frameskip_type;
1539
1540 var.key = "pcsx_rearmed_frameskip_type";
1541 var.value = NULL;
1542
1543 prev_frameskip_type = frameskip_type;
1544 frameskip_type = 0;
1545 pl_rearmed_cbs.frameskip = 0;
1546
1547 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1548 {
1549 if (strcmp(var.value, "auto") == 0)
1550 frameskip_type = 1;
1551 if (strcmp(var.value, "auto_threshold") == 0)
1552 frameskip_type = 2;
1553 if (strcmp(var.value, "fixed_interval") == 0)
1554 frameskip_type = 3;
1555 }
1556
1557 if (frameskip_type != 0)
1558 pl_rearmed_cbs.frameskip = -1;
1559
1560 var.key = "pcsx_rearmed_frameskip_threshold";
1561 var.value = NULL;
1562
1563 frameskip_threshold = 30;
1564
1565 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1566 frameskip_threshold = strtol(var.value, NULL, 10);
1567
1568 var.key = "pcsx_rearmed_frameskip";
1569 var.value = NULL;
1570
1571 frameskip_interval = 1;
1572
1573 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1574 frameskip_interval = strtol(var.value, NULL, 10);
1575
1576 var.value = NULL;
1577 var.key = "pcsx_rearmed_region";
1578 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1579 {
1580 Config.PsxAuto = 0;
1581 if (strcmp(var.value, "auto") == 0)
1582 Config.PsxAuto = 1;
1583 else if (strcmp(var.value, "NTSC") == 0)
1584 Config.PsxType = 0;
1585 else if (strcmp(var.value, "PAL") == 0)
1586 Config.PsxType = 1;
1587 }
1588
1589 update_multitap();
1590
1591 var.value = NULL;
1592 var.key = "pcsx_rearmed_negcon_deadzone";
1593 negcon_deadzone = 0;
1594 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1595 {
1596 negcon_deadzone = (int)(atoi(var.value) * 0.01f * NEGCON_RANGE);
1597 }
1598
1599 var.value = NULL;
1600 var.key = "pcsx_rearmed_negcon_response";
1601 negcon_linearity = 1;
1602 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1603 {
1604 if (strcmp(var.value, "quadratic") == 0)
1605 {
1606 negcon_linearity = 2;
1607 }
1608 else if (strcmp(var.value, "cubic") == 0)
1609 {
1610 negcon_linearity = 3;
1611 }
1612 }
1613
1614 var.value = NULL;
1615 var.key = "pcsx_rearmed_analog_axis_modifier";
1616 axis_bounds_modifier = true;
1617 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1618 {
1619 if (strcmp(var.value, "square") == 0)
1620 {
1621 axis_bounds_modifier = true;
1622 }
1623 else if (strcmp(var.value, "circle") == 0)
1624 {
1625 axis_bounds_modifier = false;
1626 }
1627 }
1628
1629 var.value = NULL;
1630 var.key = "pcsx_rearmed_vibration";
1631
1632 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1633 {
1634 if (strcmp(var.value, "disabled") == 0)
1635 in_enable_vibration = 0;
1636 else if (strcmp(var.value, "enabled") == 0)
1637 in_enable_vibration = 1;
1638 }
1639
1640 var.value = NULL;
1641 var.key = "pcsx_rearmed_dithering";
1642
1643 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1644 {
1645 if (strcmp(var.value, "disabled") == 0)
1646 {
1647 pl_rearmed_cbs.gpu_peops.iUseDither = 0;
1648 pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 0;
1649 pl_rearmed_cbs.gpu_unai.dithering = 0;
1650#ifdef __ARM_NEON__
1651 pl_rearmed_cbs.gpu_neon.allow_dithering = 0;
1652#endif
1653 }
1654 else if (strcmp(var.value, "enabled") == 0)
1655 {
1656 pl_rearmed_cbs.gpu_peops.iUseDither = 1;
1657 pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 1;
1658 pl_rearmed_cbs.gpu_unai.dithering = 1;
1659#ifdef __ARM_NEON__
1660 pl_rearmed_cbs.gpu_neon.allow_dithering = 1;
1661#endif
1662 }
1663 }
1664
1665#ifdef GPU_NEON
1666 var.value = NULL;
1667 var.key = "pcsx_rearmed_neon_interlace_enable";
1668
1669 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1670 {
1671 if (strcmp(var.value, "disabled") == 0)
1672 pl_rearmed_cbs.gpu_neon.allow_interlace = 0;
1673 else if (strcmp(var.value, "enabled") == 0)
1674 pl_rearmed_cbs.gpu_neon.allow_interlace = 1;
1675 }
1676
1677 var.value = NULL;
1678 var.key = "pcsx_rearmed_neon_enhancement_enable";
1679
1680 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1681 {
1682 if (strcmp(var.value, "disabled") == 0)
1683 pl_rearmed_cbs.gpu_neon.enhancement_enable = 0;
1684 else if (strcmp(var.value, "enabled") == 0)
1685 pl_rearmed_cbs.gpu_neon.enhancement_enable = 1;
1686 }
1687
1688 var.value = NULL;
1689 var.key = "pcsx_rearmed_neon_enhancement_no_main";
1690
1691 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1692 {
1693 if (strcmp(var.value, "disabled") == 0)
1694 pl_rearmed_cbs.gpu_neon.enhancement_no_main = 0;
1695 else if (strcmp(var.value, "enabled") == 0)
1696 pl_rearmed_cbs.gpu_neon.enhancement_no_main = 1;
1697 }
1698#endif
1699
1700 var.value = NULL;
1701 var.key = "pcsx_rearmed_duping_enable";
1702
1703 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1704 {
1705 if (strcmp(var.value, "disabled") == 0)
1706 duping_enable = false;
1707 else if (strcmp(var.value, "enabled") == 0)
1708 duping_enable = true;
1709 }
1710
1711 var.value = NULL;
1712 var.key = "pcsx_rearmed_display_internal_fps";
1713
1714 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1715 {
1716 if (strcmp(var.value, "disabled") == 0)
1717 display_internal_fps = false;
1718 else if (strcmp(var.value, "enabled") == 0)
1719 display_internal_fps = true;
1720 }
1721
1722#ifndef DRC_DISABLE
1723 var.value = NULL;
1724 var.key = "pcsx_rearmed_drc";
1725
1726 if (!environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
1727 var.value = "enabled";
1728
1729 {
1730 R3000Acpu *prev_cpu = psxCpu;
1731#if defined(LIGHTREC)
1732 bool can_use_dynarec = found_bios;
1733#else
1734 bool can_use_dynarec = 1;
1735#endif
1736
1737#ifdef _3DS
1738 if (!__ctr_svchax)
1739 Config.Cpu = CPU_INTERPRETER;
1740 else
1741#endif
1742 if (strcmp(var.value, "disabled") == 0 || !can_use_dynarec)
1743 Config.Cpu = CPU_INTERPRETER;
1744 else if (strcmp(var.value, "enabled") == 0)
1745 Config.Cpu = CPU_DYNAREC;
1746
1747 psxCpu = (Config.Cpu == CPU_INTERPRETER) ? &psxInt : &psxRec;
1748 if (psxCpu != prev_cpu)
1749 {
1750 prev_cpu->Shutdown();
1751 psxCpu->Init();
1752 psxCpu->Reset(); // not really a reset..
1753 }
1754 }
1755#endif /* !DRC_DISABLE */
1756 psxCpu->ApplyConfig();
1757
1758 var.value = NULL;
1759 var.key = "pcsx_rearmed_spu_reverb";
1760
1761 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1762 {
1763 if (strcmp(var.value, "disabled") == 0)
1764 spu_config.iUseReverb = false;
1765 else if (strcmp(var.value, "enabled") == 0)
1766 spu_config.iUseReverb = true;
1767 }
1768
1769 var.value = NULL;
1770 var.key = "pcsx_rearmed_spu_interpolation";
1771
1772 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1773 {
1774 if (strcmp(var.value, "simple") == 0)
1775 spu_config.iUseInterpolation = 1;
1776 else if (strcmp(var.value, "gaussian") == 0)
1777 spu_config.iUseInterpolation = 2;
1778 else if (strcmp(var.value, "cubic") == 0)
1779 spu_config.iUseInterpolation = 3;
1780 else if (strcmp(var.value, "off") == 0)
1781 spu_config.iUseInterpolation = 0;
1782 }
1783
1784 var.value = NULL;
1785 var.key = "pcsx_rearmed_pe2_fix";
1786
1787 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1788 {
1789 if (strcmp(var.value, "disabled") == 0)
1790 Config.RCntFix = 0;
1791 else if (strcmp(var.value, "enabled") == 0)
1792 Config.RCntFix = 1;
1793 }
1794
1795 var.value = NULL;
1796 var.key = "pcsx_rearmed_icache_emulation";
1797
1798 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1799 {
1800 if (strcmp(var.value, "disabled") == 0)
1801 Config.icache_emulation = 0;
1802 else if (strcmp(var.value, "enabled") == 0)
1803 Config.icache_emulation = 1;
1804 }
1805
1806 var.value = NULL;
1807 var.key = "pcsx_rearmed_inuyasha_fix";
1808
1809 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1810 {
1811 if (strcmp(var.value, "disabled") == 0)
1812 Config.VSyncWA = 0;
1813 else if (strcmp(var.value, "enabled") == 0)
1814 Config.VSyncWA = 1;
1815 }
1816
1817#ifndef _WIN32
1818 var.value = NULL;
1819 var.key = "pcsx_rearmed_async_cd";
1820 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1821 {
1822 if (strcmp(var.value, "async") == 0)
1823 {
1824 Config.AsyncCD = 1;
1825 Config.CHD_Precache = 0;
1826 }
1827 else if (strcmp(var.value, "sync") == 0)
1828 {
1829 Config.AsyncCD = 0;
1830 Config.CHD_Precache = 0;
1831 }
1832 else if (strcmp(var.value, "precache") == 0)
1833 {
1834 Config.AsyncCD = 0;
1835 Config.CHD_Precache = 1;
1836 }
1837 }
1838#endif
1839
1840 var.value = NULL;
1841 var.key = "pcsx_rearmed_noxadecoding";
1842 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1843 {
1844 if (strcmp(var.value, "disabled") == 0)
1845 Config.Xa = 1;
1846 else
1847 Config.Xa = 0;
1848 }
1849
1850 var.value = NULL;
1851 var.key = "pcsx_rearmed_nocdaudio";
1852 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1853 {
1854 if (strcmp(var.value, "disabled") == 0)
1855 Config.Cdda = 1;
1856 else
1857 Config.Cdda = 0;
1858 }
1859
1860 var.value = NULL;
1861 var.key = "pcsx_rearmed_spuirq";
1862 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1863 {
1864 if (strcmp(var.value, "disabled") == 0)
1865 Config.SpuIrq = 0;
1866 else
1867 Config.SpuIrq = 1;
1868 }
1869
1870#ifdef THREAD_RENDERING
1871 var.key = "pcsx_rearmed_gpu_thread_rendering";
1872 var.value = NULL;
1873
1874 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1875 {
1876 if (strcmp(var.value, "disabled") == 0)
1877 pl_rearmed_cbs.thread_rendering = THREAD_RENDERING_OFF;
1878 else if (strcmp(var.value, "sync") == 0)
1879 pl_rearmed_cbs.thread_rendering = THREAD_RENDERING_SYNC;
1880 else if (strcmp(var.value, "async") == 0)
1881 pl_rearmed_cbs.thread_rendering = THREAD_RENDERING_ASYNC;
1882 }
1883#endif
1884
1885#ifdef GPU_PEOPS
1886 var.value = NULL;
1887 var.key = "pcsx_rearmed_gpu_peops_odd_even_bit";
1888
1889 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1890 {
1891 if (strcmp(var.value, "enabled") == 0)
1892 gpu_peops_fix |= GPU_PEOPS_ODD_EVEN_BIT;
1893 }
1894
1895 var.value = NULL;
1896 var.key = "pcsx_rearmed_gpu_peops_expand_screen_width";
1897
1898 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1899 {
1900 if (strcmp(var.value, "enabled") == 0)
1901 gpu_peops_fix |= GPU_PEOPS_EXPAND_SCREEN_WIDTH;
1902 }
1903
1904 var.value = NULL;
1905 var.key = "pcsx_rearmed_gpu_peops_ignore_brightness";
1906
1907 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1908 {
1909 if (strcmp(var.value, "enabled") == 0)
1910 gpu_peops_fix |= GPU_PEOPS_IGNORE_BRIGHTNESS;
1911 }
1912
1913 var.value = NULL;
1914 var.key = "pcsx_rearmed_gpu_peops_disable_coord_check";
1915
1916 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1917 {
1918 if (strcmp(var.value, "enabled") == 0)
1919 gpu_peops_fix |= GPU_PEOPS_DISABLE_COORD_CHECK;
1920 }
1921
1922 var.value = NULL;
1923 var.key = "pcsx_rearmed_gpu_peops_lazy_screen_update";
1924
1925 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1926 {
1927 if (strcmp(var.value, "enabled") == 0)
1928 gpu_peops_fix |= GPU_PEOPS_LAZY_SCREEN_UPDATE;
1929 }
1930
1931 var.value = NULL;
1932 var.key = "pcsx_rearmed_gpu_peops_old_frame_skip";
1933
1934 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1935 {
1936 if (strcmp(var.value, "enabled") == 0)
1937 gpu_peops_fix |= GPU_PEOPS_OLD_FRAME_SKIP;
1938 }
1939
1940 var.value = NULL;
1941 var.key = "pcsx_rearmed_gpu_peops_repeated_triangles";
1942
1943 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1944 {
1945 if (strcmp(var.value, "enabled") == 0)
1946 gpu_peops_fix |= GPU_PEOPS_REPEATED_TRIANGLES;
1947 }
1948
1949 var.value = NULL;
1950 var.key = "pcsx_rearmed_gpu_peops_quads_with_triangles";
1951
1952 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1953 {
1954 if (strcmp(var.value, "enabled") == 0)
1955 gpu_peops_fix |= GPU_PEOPS_QUADS_WITH_TRIANGLES;
1956 }
1957
1958 var.value = NULL;
1959 var.key = "pcsx_rearmed_gpu_peops_fake_busy_state";
1960
1961 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1962 {
1963 if (strcmp(var.value, "enabled") == 0)
1964 gpu_peops_fix |= GPU_PEOPS_FAKE_BUSY_STATE;
1965 }
1966
1967 if (pl_rearmed_cbs.gpu_peops.dwActFixes != gpu_peops_fix)
1968 pl_rearmed_cbs.gpu_peops.dwActFixes = gpu_peops_fix;
1969
1970 /* Show/hide core options */
1971
1972 var.key = "pcsx_rearmed_show_gpu_peops_settings";
1973 var.value = NULL;
1974
1975 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1976 {
1977 int show_advanced_gpu_peops_settings_prev = show_advanced_gpu_peops_settings;
1978
1979 show_advanced_gpu_peops_settings = 1;
1980 if (strcmp(var.value, "disabled") == 0)
1981 show_advanced_gpu_peops_settings = 0;
1982
1983 if (show_advanced_gpu_peops_settings != show_advanced_gpu_peops_settings_prev)
1984 {
1985 unsigned i;
1986 struct retro_core_option_display option_display;
1987 char gpu_peops_option[9][45] = {
1988 "pcsx_rearmed_gpu_peops_odd_even_bit",
1989 "pcsx_rearmed_gpu_peops_expand_screen_width",
1990 "pcsx_rearmed_gpu_peops_ignore_brightness",
1991 "pcsx_rearmed_gpu_peops_disable_coord_check",
1992 "pcsx_rearmed_gpu_peops_lazy_screen_update",
1993 "pcsx_rearmed_gpu_peops_old_frame_skip",
1994 "pcsx_rearmed_gpu_peops_repeated_triangles",
1995 "pcsx_rearmed_gpu_peops_quads_with_triangles",
1996 "pcsx_rearmed_gpu_peops_fake_busy_state"
1997 };
1998
1999 option_display.visible = show_advanced_gpu_peops_settings;
2000
2001 for (i = 0; i < 9; i++)
2002 {
2003 option_display.key = gpu_peops_option[i];
2004 environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
2005 }
2006 }
2007 }
2008#endif
2009
2010#ifdef GPU_UNAI
2011 var.key = "pcsx_rearmed_gpu_unai_ilace_force";
2012 var.value = NULL;
2013
2014 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2015 {
2016 if (strcmp(var.value, "disabled") == 0)
2017 pl_rearmed_cbs.gpu_unai.ilace_force = 0;
2018 else if (strcmp(var.value, "enabled") == 0)
2019 pl_rearmed_cbs.gpu_unai.ilace_force = 1;
2020 }
2021
2022 var.key = "pcsx_rearmed_gpu_unai_pixel_skip";
2023 var.value = NULL;
2024
2025 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2026 {
2027 if (strcmp(var.value, "disabled") == 0)
2028 pl_rearmed_cbs.gpu_unai.pixel_skip = 0;
2029 else if (strcmp(var.value, "enabled") == 0)
2030 pl_rearmed_cbs.gpu_unai.pixel_skip = 1;
2031 }
2032
2033 var.key = "pcsx_rearmed_gpu_unai_lighting";
2034 var.value = NULL;
2035
2036 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2037 {
2038 if (strcmp(var.value, "disabled") == 0)
2039 pl_rearmed_cbs.gpu_unai.lighting = 0;
2040 else if (strcmp(var.value, "enabled") == 0)
2041 pl_rearmed_cbs.gpu_unai.lighting = 1;
2042 }
2043
2044 var.key = "pcsx_rearmed_gpu_unai_fast_lighting";
2045 var.value = NULL;
2046
2047 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2048 {
2049 if (strcmp(var.value, "disabled") == 0)
2050 pl_rearmed_cbs.gpu_unai.fast_lighting = 0;
2051 else if (strcmp(var.value, "enabled") == 0)
2052 pl_rearmed_cbs.gpu_unai.fast_lighting = 1;
2053 }
2054
2055 var.key = "pcsx_rearmed_gpu_unai_blending";
2056 var.value = NULL;
2057
2058 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2059 {
2060 if (strcmp(var.value, "disabled") == 0)
2061 pl_rearmed_cbs.gpu_unai.blending = 0;
2062 else if (strcmp(var.value, "enabled") == 0)
2063 pl_rearmed_cbs.gpu_unai.blending = 1;
2064 }
2065
2066 var.key = "pcsx_rearmed_gpu_unai_scale_hires";
2067 var.value = NULL;
2068
2069 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2070 {
2071 if (strcmp(var.value, "disabled") == 0)
2072 pl_rearmed_cbs.gpu_unai.scale_hires = 0;
2073 else if (strcmp(var.value, "enabled") == 0)
2074 pl_rearmed_cbs.gpu_unai.scale_hires = 1;
2075 }
2076
2077 var.key = "pcsx_rearmed_show_gpu_unai_settings";
2078 var.value = NULL;
2079
2080 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2081 {
2082 int show_advanced_gpu_unai_settings_prev = show_advanced_gpu_unai_settings;
2083
2084 show_advanced_gpu_unai_settings = 1;
2085 if (strcmp(var.value, "disabled") == 0)
2086 show_advanced_gpu_unai_settings = 0;
2087
2088 if (show_advanced_gpu_unai_settings != show_advanced_gpu_unai_settings_prev)
2089 {
2090 unsigned i;
2091 struct retro_core_option_display option_display;
2092 char gpu_unai_option[6][40] = {
2093 "pcsx_rearmed_gpu_unai_blending",
2094 "pcsx_rearmed_gpu_unai_lighting",
2095 "pcsx_rearmed_gpu_unai_fast_lighting",
2096 "pcsx_rearmed_gpu_unai_ilace_force",
2097 "pcsx_rearmed_gpu_unai_pixel_skip",
2098 "pcsx_rearmed_gpu_unai_scale_hires",
2099 };
2100
2101 option_display.visible = show_advanced_gpu_unai_settings;
2102
2103 for (i = 0; i < 6; i++)
2104 {
2105 option_display.key = gpu_unai_option[i];
2106 environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
2107 }
2108 }
2109 }
2110#endif // GPU_UNAI
2111
2112 //This adjustment process gives the user the ability to manually align the mouse up better
2113 //with where the shots are in the emulator.
2114
2115 var.value = NULL;
2116 var.key = "pcsx_rearmed_gunconadjustx";
2117
2118 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2119 {
2120 GunconAdjustX = atoi(var.value);
2121 }
2122
2123 var.value = NULL;
2124 var.key = "pcsx_rearmed_gunconadjusty";
2125
2126 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2127 {
2128 GunconAdjustY = atoi(var.value);
2129 }
2130
2131 var.value = NULL;
2132 var.key = "pcsx_rearmed_gunconadjustratiox";
2133
2134 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2135 {
2136 GunconAdjustRatioX = atof(var.value);
2137 }
2138
2139 var.value = NULL;
2140 var.key = "pcsx_rearmed_gunconadjustratioy";
2141
2142 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2143 {
2144 GunconAdjustRatioY = atof(var.value);
2145 }
2146
2147#if !defined(DRC_DISABLE) && !defined(LIGHTREC)
2148 var.value = NULL;
2149 var.key = "pcsx_rearmed_nosmccheck";
2150 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2151 {
2152 if (strcmp(var.value, "enabled") == 0)
2153 new_dynarec_hacks |= NDHACK_NO_SMC_CHECK;
2154 else
2155 new_dynarec_hacks &= ~NDHACK_NO_SMC_CHECK;
2156 }
2157
2158 var.value = NULL;
2159 var.key = "pcsx_rearmed_gteregsunneeded";
2160 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2161 {
2162 if (strcmp(var.value, "enabled") == 0)
2163 new_dynarec_hacks |= NDHACK_GTE_UNNEEDED;
2164 else
2165 new_dynarec_hacks &= ~NDHACK_GTE_UNNEEDED;
2166 }
2167
2168 var.value = NULL;
2169 var.key = "pcsx_rearmed_nogteflags";
2170 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2171 {
2172 if (strcmp(var.value, "enabled") == 0)
2173 new_dynarec_hacks |= NDHACK_GTE_NO_FLAGS;
2174 else
2175 new_dynarec_hacks &= ~NDHACK_GTE_NO_FLAGS;
2176 }
2177
2178 /* this probably is safe to change in real-time */
2179 var.value = NULL;
2180 var.key = "pcsx_rearmed_psxclock";
2181 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2182 {
2183 int psxclock = atoi(var.value);
2184 cycle_multiplier = 10000 / psxclock;
2185 }
2186
2187 var.value = NULL;
2188 var.key = "pcsx_rearmed_nocompathacks";
2189 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2190 {
2191 if (strcmp(var.value, "enabled") == 0)
2192 new_dynarec_hacks |= NDHACK_NO_COMPAT_HACKS;
2193 else
2194 new_dynarec_hacks &= ~NDHACK_NO_COMPAT_HACKS;
2195 }
2196#endif /* !DRC_DISABLE && !LIGHTREC */
2197
2198 var.value = NULL;
2199 var.key = "pcsx_rearmed_nostalls";
2200 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2201 {
2202 if (strcmp(var.value, "enabled") == 0)
2203 Config.DisableStalls = 1;
2204 else
2205 Config.DisableStalls = 0;
2206 }
2207
2208 var.value = NULL;
2209 var.key = "pcsx_rearmed_input_sensitivity";
2210 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2211 {
2212 mouse_sensitivity = atof(var.value);
2213 }
2214
2215 var.key = "pcsx_rearmed_show_other_input_settings";
2216 var.value = NULL;
2217
2218 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2219 {
2220 int previous_settings = show_other_input_settings;
2221
2222 show_other_input_settings = 1;
2223 if (strcmp(var.value, "disabled") == 0)
2224 show_other_input_settings = 0;
2225
2226 if (show_other_input_settings != previous_settings)
2227 {
2228 unsigned i;
2229 struct retro_core_option_display option_display;
2230 char gpu_peops_option[][50] = {
2231 "pcsx_rearmed_negcon_deadzone",
2232 "pcsx_rearmed_negcon_response",
2233 "pcsx_rearmed_analog_axis_modifier",
2234 "pcsx_rearmed_gunconadjustx",
2235 "pcsx_rearmed_gunconadjusty",
2236 "pcsx_rearmed_gunconadjustratiox",
2237 "pcsx_rearmed_gunconadjustratioy"
2238 };
2239 #define INPUT_LIST (sizeof(gpu_peops_option) / sizeof(gpu_peops_option[0]))
2240
2241 option_display.visible = show_other_input_settings;
2242
2243 for (i = 0; i < INPUT_LIST; i++)
2244 {
2245 option_display.key = gpu_peops_option[i];
2246 environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
2247 }
2248 }
2249 }
2250
2251 if (in_flight)
2252 {
2253 // inform core things about possible config changes
2254 plugin_call_rearmed_cbs();
2255
2256 if (GPU_open != NULL && GPU_close != NULL)
2257 {
2258 GPU_close();
2259 GPU_open(&gpuDisp, "PCSX", NULL);
2260 }
2261
2262 /* Reinitialise frameskipping, if required */
2263 if (((frameskip_type != prev_frameskip_type)))
2264 retro_set_audio_buff_status_cb();
2265
2266 /* dfinput_activate(); */
2267 }
2268 else
2269 {
2270 //not yet running
2271
2272 //bootlogo display hack
2273 if (found_bios)
2274 {
2275 var.value = NULL;
2276 var.key = "pcsx_rearmed_show_bios_bootlogo";
2277 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2278 {
2279 Config.SlowBoot = 0;
2280 rebootemu = 0;
2281 if (strcmp(var.value, "enabled") == 0)
2282 {
2283 Config.SlowBoot = 1;
2284 rebootemu = 1;
2285 }
2286 }
2287 }
2288 }
2289}
2290
2291// Taken from beetle-psx-libretro
2292static uint16_t get_analog_button(int16_t ret, retro_input_state_t input_state_cb, int player_index, int id)
2293{
2294 // NOTE: Analog buttons were added Nov 2017. Not all front-ends support this
2295 // feature (or pre-date it) so we need to handle this in a graceful way.
2296
2297 // First, try and get an analog value using the new libretro API constant
2298 uint16_t button = input_state_cb(player_index,
2299 RETRO_DEVICE_ANALOG,
2300 RETRO_DEVICE_INDEX_ANALOG_BUTTON,
2301 id);
2302 button = MIN(button / 128, 255);
2303
2304 if (button == 0)
2305 {
2306 // If we got exactly zero, we're either not pressing the button, or the front-end
2307 // is not reporting analog values. We need to do a second check using the classic
2308 // digital API method, to at least get some response - better than nothing.
2309
2310 // NOTE: If we're really just not holding the button, we're still going to get zero.
2311
2312 button = (ret & (1 << id)) ? 255 : 0;
2313 }
2314
2315 return button;
2316}
2317
2318unsigned char axis_range_modifier(int16_t axis_value, bool is_square)
2319{
2320 float modifier_axis_range = 0;
2321
2322 if (is_square)
2323 {
2324 modifier_axis_range = round((axis_value >> 8) / 0.785) + 128;
2325 if (modifier_axis_range < 0)
2326 {
2327 modifier_axis_range = 0;
2328 }
2329 else if (modifier_axis_range > 255)
2330 {
2331 modifier_axis_range = 255;
2332 }
2333 }
2334 else
2335 {
2336 modifier_axis_range = MIN(((axis_value >> 8) + 128), 255);
2337 }
2338
2339 return modifier_axis_range;
2340}
2341
2342static void update_input_guncon(int port, int ret)
2343{
2344 //ToDo move across to:
2345 //RETRO_DEVICE_ID_LIGHTGUN_SCREEN_X
2346 //RETRO_DEVICE_ID_LIGHTGUN_SCREEN_Y
2347 //RETRO_DEVICE_ID_LIGHTGUN_TRIGGER
2348 //RETRO_DEVICE_ID_LIGHTGUN_RELOAD
2349 //RETRO_DEVICE_ID_LIGHTGUN_AUX_A
2350 //RETRO_DEVICE_ID_LIGHTGUN_AUX_B
2351 //Though not sure these are hooked up properly on the Pi
2352
2353 //GUNCON has 3 controls, Trigger,A,B which equal Circle,Start,Cross
2354
2355 // Trigger
2356 //The 1 is hardcoded instead of port to prevent the overlay mouse button libretro crash bug
2357 if (input_state_cb(port, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
2358 {
2359 in_keystate[port] |= (1 << DKEY_CIRCLE);
2360 }
2361
2362 // A
2363 if (input_state_cb(port, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
2364 {
2365 in_keystate[port] |= (1 << DKEY_START);
2366 }
2367
2368 // B
2369 if (input_state_cb(port, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE))
2370 {
2371 in_keystate[port] |= (1 << DKEY_CROSS);
2372 }
2373
2374 int gunx = input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X);
2375 int guny = input_state_cb(port, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y);
2376
2377 //Mouse range is -32767 -> 32767
2378 //1% is about 655
2379 //Use the left analog stick field to store the absolute coordinates
2380 in_analog_left[port][0] = (gunx * GunconAdjustRatioX) + (GunconAdjustX * 655);
2381 in_analog_left[port][1] = (guny * GunconAdjustRatioY) + (GunconAdjustY * 655);
2382}
2383
2384static void update_input_negcon(int port, int ret)
2385{
2386 int lsx;
2387 int rsy;
2388 int negcon_i_rs;
2389 int negcon_ii_rs;
2390 float negcon_twist_amplitude;
2391
2392 // Query digital inputs
2393 //
2394 // > Pad-Up
2395 if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
2396 in_keystate[port] |= (1 << DKEY_UP);
2397 // > Pad-Right
2398 if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
2399 in_keystate[port] |= (1 << DKEY_RIGHT);
2400 // > Pad-Down
2401 if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
2402 in_keystate[port] |= (1 << DKEY_DOWN);
2403 // > Pad-Left
2404 if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
2405 in_keystate[port] |= (1 << DKEY_LEFT);
2406 // > Start
2407 if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
2408 in_keystate[port] |= (1 << DKEY_START);
2409 // > neGcon A
2410 if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_A))
2411 in_keystate[port] |= (1 << DKEY_CIRCLE);
2412 // > neGcon B
2413 if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_X))
2414 in_keystate[port] |= (1 << DKEY_TRIANGLE);
2415 // > neGcon R shoulder (digital)
2416 if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R))
2417 in_keystate[port] |= (1 << DKEY_R1);
2418 // Query analog inputs
2419 //
2420 // From studying 'libpcsxcore/plugins.c' and 'frontend/plugin.c':
2421 // >> pad->leftJoyX == in_analog_left[port][0] == NeGcon II
2422 // >> pad->leftJoyY == in_analog_left[port][1] == NeGcon L
2423 // >> pad->rightJoyX == in_analog_right[port][0] == NeGcon twist
2424 // >> pad->rightJoyY == in_analog_right[port][1] == NeGcon I
2425 // So we just have to map in_analog_left/right to more
2426 // appropriate inputs...
2427 //
2428 // > NeGcon twist
2429 // >> Get raw analog stick value and account for deadzone
2430 lsx = input_state_cb(port, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X);
2431 if (lsx > negcon_deadzone)
2432 lsx = lsx - negcon_deadzone;
2433 else if (lsx < -negcon_deadzone)
2434 lsx = lsx + negcon_deadzone;
2435 else
2436 lsx = 0;
2437 // >> Convert to an 'amplitude' [-1.0,1.0] and adjust response
2438 negcon_twist_amplitude = (float)lsx / (float)(NEGCON_RANGE - negcon_deadzone);
2439 if (negcon_linearity == 2)
2440 {
2441 if (negcon_twist_amplitude < 0.0)
2442 negcon_twist_amplitude = -(negcon_twist_amplitude * negcon_twist_amplitude);
2443 else
2444 negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude;
2445 }
2446 else if (negcon_linearity == 3)
2447 negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude * negcon_twist_amplitude;
2448 // >> Convert to final 'in_analog' integer value [0,255]
2449 in_analog_right[port][0] = MAX(MIN((int)(negcon_twist_amplitude * 128.0f) + 128, 255), 0);
2450 // > NeGcon I + II
2451 // >> Handle right analog stick vertical axis mapping...
2452 // - Up (-Y) == accelerate == neGcon I
2453 // - Down (+Y) == brake == neGcon II
2454 negcon_i_rs = 0;
2455 negcon_ii_rs = 0;
2456 rsy = input_state_cb(port, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
2457 if (rsy >= 0)
2458 {
2459 // Account for deadzone
2460 // (Note: have never encountered a gamepad with significant differences
2461 // in deadzone between left/right analog sticks, so use the regular 'twist'
2462 // deadzone here)
2463 if (rsy > negcon_deadzone)
2464 rsy = rsy - negcon_deadzone;
2465 else
2466 rsy = 0;
2467 // Convert to 'in_analog' integer value [0,255]
2468 negcon_ii_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2469 }
2470 else
2471 {
2472 if (rsy < -negcon_deadzone)
2473 rsy = -1 * (rsy + negcon_deadzone);
2474 else
2475 rsy = 0;
2476 negcon_i_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2477 }
2478 // >> NeGcon I
2479 in_analog_right[port][1] = MAX(
2480 MAX(
2481 get_analog_button(ret, input_state_cb, port, RETRO_DEVICE_ID_JOYPAD_R2),
2482 get_analog_button(ret, input_state_cb, port, RETRO_DEVICE_ID_JOYPAD_B)),
2483 negcon_i_rs);
2484 // >> NeGcon II
2485 in_analog_left[port][0] = MAX(
2486 MAX(
2487 get_analog_button(ret, input_state_cb, port, RETRO_DEVICE_ID_JOYPAD_L2),
2488 get_analog_button(ret, input_state_cb, port, RETRO_DEVICE_ID_JOYPAD_Y)),
2489 negcon_ii_rs);
2490 // > NeGcon L
2491 in_analog_left[port][1] = get_analog_button(ret, input_state_cb, port, RETRO_DEVICE_ID_JOYPAD_L);
2492}
2493
2494static void update_input_mouse(int port, int ret)
2495{
2496 float raw_x = input_state_cb(port, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_X);
2497 float raw_y = input_state_cb(port, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
2498
2499 int x = (int)roundf(raw_x * mouse_sensitivity);
2500 int y = (int)roundf(raw_y * mouse_sensitivity);
2501
2502 if (x > 127) x = 127;
2503 else if (x < -128) x = -128;
2504
2505 if (y > 127) y = 127;
2506 else if (y < -128) y = -128;
2507
2508 in_mouse[port][0] = x; /* -128..+128 left/right movement, 0 = no movement */
2509 in_mouse[port][1] = y; /* -128..+128 down/up movement, 0 = no movement */
2510
2511 /* left mouse button state */
2512 if (input_state_cb(port, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
2513 in_keystate[port] |= 1 << 11;
2514
2515 /* right mouse button state */
2516 if (input_state_cb(port, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
2517 in_keystate[port] |= 1 << 10;
2518}
2519
2520static void update_input(void)
2521{
2522 // reset all keystate, query libretro for keystate
2523 int i;
2524 int j;
2525
2526 for (i = 0; i < PORTS_NUMBER; i++)
2527 {
2528 int16_t ret = 0;
2529 int type = in_type[i];
2530
2531 in_keystate[i] = 0;
2532
2533 if (type == PSE_PAD_TYPE_NONE)
2534 continue;
2535
2536 if (libretro_supports_bitmasks)
2537 ret = input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
2538 else
2539 {
2540 for (j = 0; j < (RETRO_DEVICE_ID_JOYPAD_R3 + 1); j++)
2541 {
2542 if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, j))
2543 ret |= (1 << j);
2544 }
2545 }
2546
2547 switch (type)
2548 {
2549 case PSE_PAD_TYPE_GUNCON:
2550 update_input_guncon(i, ret);
2551 break;
2552 case PSE_PAD_TYPE_NEGCON:
2553 update_input_negcon(i, ret);
2554 break;
2555 case PSE_PAD_TYPE_MOUSE:
2556 update_input_mouse(i, ret);
2557 break;
2558 default:
2559 // Query digital inputs
2560 for (j = 0; j < RETRO_PSX_MAP_LEN; j++)
2561 if (ret & (1 << j))
2562 in_keystate[i] |= retro_psx_map[j];
2563
2564 // Query analog inputs
2565 if (type == PSE_PAD_TYPE_ANALOGJOY || type == PSE_PAD_TYPE_ANALOGPAD)
2566 {
2567 in_analog_left[i][0] = axis_range_modifier(input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X), axis_bounds_modifier);
2568 in_analog_left[i][1] = axis_range_modifier(input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y), axis_bounds_modifier);
2569 in_analog_right[i][0] = axis_range_modifier(input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X), axis_bounds_modifier);
2570 in_analog_right[i][1] = axis_range_modifier(input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y), axis_bounds_modifier);
2571 }
2572 }
2573 }
2574}
2575
2576static void print_internal_fps(void)
2577{
2578 if (display_internal_fps)
2579 {
2580 frame_count++;
2581
2582 if (frame_count % INTERNAL_FPS_SAMPLE_PERIOD == 0)
2583 {
2584 unsigned internal_fps = pl_rearmed_cbs.flip_cnt * (is_pal_mode ? 50 : 60) / INTERNAL_FPS_SAMPLE_PERIOD;
2585 char str[64];
2586 const char *strc = (const char *)str;
2587
2588 str[0] = '\0';
2589
2590 snprintf(str, sizeof(str), "Internal FPS: %2d", internal_fps);
2591
2592 pl_rearmed_cbs.flip_cnt = 0;
2593
2594 if (msg_interface_version >= 1)
2595 {
2596 struct retro_message_ext msg = {
2597 strc,
2598 3000,
2599 1,
2600 RETRO_LOG_INFO,
2601 RETRO_MESSAGE_TARGET_OSD,
2602 RETRO_MESSAGE_TYPE_STATUS,
2603 -1
2604 };
2605 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE_EXT, &msg);
2606 }
2607 else
2608 {
2609 struct retro_message msg = {
2610 strc,
2611 180
2612 };
2613 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
2614 }
2615 }
2616 }
2617 else
2618 frame_count = 0;
2619}
2620
2621void retro_run(void)
2622{
2623 //SysReset must be run while core is running,Not in menu (Locks up Retroarch)
2624 if (rebootemu != 0)
2625 {
2626 rebootemu = 0;
2627 SysReset();
2628 if (!Config.HLE && !Config.SlowBoot)
2629 {
2630 // skip BIOS logos
2631 psxRegs.pc = psxRegs.GPR.n.ra;
2632 }
2633 return;
2634 }
2635
2636 print_internal_fps();
2637
2638 /* Check whether current frame should
2639 * be skipped */
2640 pl_rearmed_cbs.fskip_force = 0;
2641 pl_rearmed_cbs.fskip_dirty = 0;
2642 if ((frameskip_type > 0) && retro_audio_buff_active)
2643 {
2644 bool skip_frame;
2645
2646 switch (frameskip_type)
2647 {
2648 case 1: /* auto */
2649 skip_frame = retro_audio_buff_underrun;
2650 break;
2651 case 2: /* threshold */
2652 skip_frame = (retro_audio_buff_occupancy < frameskip_threshold);
2653 break;
2654 case 3: /* fixed */
2655 skip_frame = true;
2656 break;
2657 default:
2658 skip_frame = false;
2659 break;
2660 }
2661
2662 if (skip_frame && frameskip_counter < frameskip_interval)
2663 pl_rearmed_cbs.fskip_force = 1;
2664 }
2665
2666 /* If frameskip/timing settings have changed,
2667 * update frontend audio latency
2668 * > Can do this before or after the frameskip
2669 * check, but doing it after means we at least
2670 * retain the current frame's audio output */
2671 if (update_audio_latency)
2672 {
2673 environ_cb(RETRO_ENVIRONMENT_SET_MINIMUM_AUDIO_LATENCY,
2674 &retro_audio_latency);
2675 update_audio_latency = false;
2676 }
2677
2678 input_poll_cb();
2679
2680 update_input();
2681
2682 bool updated = false;
2683 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
2684 update_variables(true);
2685
2686 stop = 0;
2687 psxCpu->Execute();
2688
2689 if (pl_rearmed_cbs.fskip_dirty == 1) {
2690 if (frameskip_counter < frameskip_interval)
2691 frameskip_counter++;
2692 else if (frameskip_counter >= frameskip_interval || !pl_rearmed_cbs.fskip_force)
2693 frameskip_counter = 0;
2694 }
2695
2696 video_cb((vout_fb_dirty || !vout_can_dupe || !duping_enable) ? vout_buf_ptr : NULL,
2697 vout_width, vout_height, vout_width * 2);
2698 vout_fb_dirty = 0;
2699
2700 set_vout_fb();
2701}
2702
2703static bool try_use_bios(const char *path)
2704{
2705 long size;
2706 const char *name;
2707 FILE *fp = fopen(path, "rb");
2708 if (fp == NULL)
2709 return false;
2710
2711 fseek(fp, 0, SEEK_END);
2712 size = ftell(fp);
2713 fclose(fp);
2714
2715 if (size != 512 * 1024)
2716 return false;
2717
2718 name = strrchr(path, SLASH);
2719 if (name++ == NULL)
2720 name = path;
2721 snprintf(Config.Bios, sizeof(Config.Bios), "%s", name);
2722 return true;
2723}
2724
2725#ifndef VITA
2726#include <sys/types.h>
2727#include <dirent.h>
2728
2729static bool find_any_bios(const char *dirpath, char *path, size_t path_size)
2730{
2731 DIR *dir;
2732 struct dirent *ent;
2733 bool ret = false;
2734
2735 dir = opendir(dirpath);
2736 if (dir == NULL)
2737 return false;
2738
2739 while ((ent = readdir(dir)))
2740 {
2741 if ((strncasecmp(ent->d_name, "scph", 4) != 0) && (strncasecmp(ent->d_name, "psx", 3) != 0))
2742 continue;
2743
2744 snprintf(path, path_size, "%s%c%s", dirpath, SLASH, ent->d_name);
2745 ret = try_use_bios(path);
2746 if (ret)
2747 break;
2748 }
2749 closedir(dir);
2750 return ret;
2751}
2752#else
2753#define find_any_bios(...) false
2754#endif
2755
2756static void check_system_specs(void)
2757{
2758 unsigned level = 6;
2759 environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
2760}
2761
2762static int init_memcards(void)
2763{
2764 int ret = 0;
2765 const char *dir;
2766 struct retro_variable var = { .key = "pcsx_rearmed_memcard2", .value = NULL };
2767 static const char CARD2_FILE[] = "pcsx-card2.mcd";
2768
2769 // Memcard2 will be handled and is re-enabled if needed using core
2770 // operations.
2771 // Memcard1 is handled by libretro, doing this will set core to
2772 // skip file io operations for memcard1 like SaveMcd
2773 snprintf(Config.Mcd1, sizeof(Config.Mcd1), "none");
2774 snprintf(Config.Mcd2, sizeof(Config.Mcd2), "none");
2775 init_memcard(Mcd1Data);
2776 // Memcard 2 is managed by the emulator on the filesystem,
2777 // There is no need to initialize Mcd2Data like Mcd1Data.
2778
2779 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2780 {
2781 SysPrintf("Memcard 2: %s\n", var.value);
2782 if (memcmp(var.value, "enabled", 7) == 0)
2783 {
2784 if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir)
2785 {
2786 if (strlen(dir) + strlen(CARD2_FILE) + 2 > sizeof(Config.Mcd2))
2787 {
2788 SysPrintf("Path '%s' is too long. Cannot use memcard 2. Use a shorter path.\n", dir);
2789 ret = -1;
2790 }
2791 else
2792 {
2793 McdDisable[1] = 0;
2794 snprintf(Config.Mcd2, sizeof(Config.Mcd2), "%s/%s", dir, CARD2_FILE);
2795 SysPrintf("Use memcard 2: %s\n", Config.Mcd2);
2796 }
2797 }
2798 else
2799 {
2800 SysPrintf("Could not get save directory! Could not create memcard 2.");
2801 ret = -1;
2802 }
2803 }
2804 }
2805 return ret;
2806}
2807
2808static void loadPSXBios(void)
2809{
2810 const char *dir;
2811 char path[PATH_MAX];
2812 unsigned useHLE = 0;
2813
2814 const char *bios[] = {
2815 "PSXONPSP660", "psxonpsp660",
2816 "SCPH101", "scph101",
2817 "SCPH5501", "scph5501",
2818 "SCPH7001", "scph7001",
2819 "SCPH1001", "scph1001"
2820 };
2821
2822 struct retro_variable var = {
2823 .key = "pcsx_rearmed_bios",
2824 .value = NULL
2825 };
2826
2827 found_bios = 0;
2828
2829 if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
2830 {
2831 if (!strcmp(var.value, "HLE"))
2832 useHLE = 1;
2833 }
2834
2835 if (!useHLE)
2836 {
2837 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
2838 {
2839 unsigned i;
2840 snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s", dir);
2841
2842 for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++)
2843 {
2844 snprintf(path, sizeof(path), "%s%c%s.bin", dir, SLASH, bios[i]);
2845 found_bios = try_use_bios(path);
2846 if (found_bios)
2847 break;
2848 }
2849
2850 if (!found_bios)
2851 found_bios = find_any_bios(dir, path, sizeof(path));
2852 }
2853 if (found_bios)
2854 {
2855 SysPrintf("found BIOS file: %s\n", Config.Bios);
2856 }
2857 }
2858
2859 if (!found_bios)
2860 {
2861 const char *msg_str;
2862 if (useHLE)
2863 {
2864 msg_str = "BIOS set to \'hle\' in core options - real BIOS will be ignored";
2865 SysPrintf("Using HLE BIOS.\n");
2866 }
2867 else
2868 {
2869 msg_str = "No PlayStation BIOS file found - add for better compatibility";
2870 SysPrintf("No BIOS files found.\n");
2871 }
2872
2873 if (msg_interface_version >= 1)
2874 {
2875 struct retro_message_ext msg = {
2876 msg_str,
2877 3000,
2878 3,
2879 RETRO_LOG_WARN,
2880 RETRO_MESSAGE_TARGET_ALL,
2881 RETRO_MESSAGE_TYPE_NOTIFICATION,
2882 -1
2883 };
2884 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE_EXT, &msg);
2885 }
2886 else
2887 {
2888 struct retro_message msg = {
2889 msg_str,
2890 180
2891 };
2892 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
2893 }
2894 }
2895}
2896
2897void retro_init(void)
2898{
2899 unsigned dci_version = 0;
2900 struct retro_rumble_interface rumble;
2901 int ret;
2902
2903 msg_interface_version = 0;
2904 environ_cb(RETRO_ENVIRONMENT_GET_MESSAGE_INTERFACE_VERSION, &msg_interface_version);
2905
2906#if defined(__MACH__) && !defined(TVOS)
2907 // magic sauce to make the dynarec work on iOS
2908 syscall(SYS_ptrace, 0 /*PTRACE_TRACEME*/, 0, 0, 0);
2909#endif
2910
2911#ifdef _3DS
2912 psxMapHook = pl_3ds_mmap;
2913 psxUnmapHook = pl_3ds_munmap;
2914#endif
2915#ifdef VITA
2916 if (init_vita_mmap() < 0)
2917 abort();
2918 psxMapHook = pl_vita_mmap;
2919 psxUnmapHook = pl_vita_munmap;
2920#endif
2921 ret = emu_core_preinit();
2922#ifdef _3DS
2923 /* emu_core_preinit sets the cpu to dynarec */
2924 if (!__ctr_svchax)
2925 Config.Cpu = CPU_INTERPRETER;
2926#endif
2927 ret |= init_memcards();
2928
2929 ret |= emu_core_init();
2930 if (ret != 0)
2931 {
2932 SysPrintf("PCSX init failed.\n");
2933 exit(1);
2934 }
2935
2936#ifdef _3DS
2937 vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80);
2938#elif defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L) && !defined(VITA) && !defined(__SWITCH__)
2939 if (posix_memalign(&vout_buf, 16, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2) != 0)
2940 vout_buf = (void *) 0;
2941#else
2942 vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2943#endif
2944
2945 vout_buf_ptr = vout_buf;
2946
2947 loadPSXBios();
2948
2949 environ_cb(RETRO_ENVIRONMENT_GET_CAN_DUPE, &vout_can_dupe);
2950
2951 disk_initial_index = 0;
2952 disk_initial_path[0] = '\0';
2953 if (environ_cb(RETRO_ENVIRONMENT_GET_DISK_CONTROL_INTERFACE_VERSION, &dci_version) && (dci_version >= 1))
2954 environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_EXT_INTERFACE, &disk_control_ext);
2955 else
2956 environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
2957
2958 rumble_cb = NULL;
2959 if (environ_cb(RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble))
2960 rumble_cb = rumble.set_rumble_state;
2961
2962 /* Set how much slower PSX CPU runs * 100 (so that 200 is 2 times)
2963 * we have to do this because cache misses and some IO penalties
2964 * are not emulated. Warning: changing this may break compatibility. */
2965 cycle_multiplier = 175;
2966#if defined(HAVE_PRE_ARMV7) && !defined(_3DS)
2967 cycle_multiplier = 200;
2968#endif
2969 pl_rearmed_cbs.gpu_peops.iUseDither = 1;
2970 pl_rearmed_cbs.gpu_peops.dwActFixes = GPU_PEOPS_OLD_FRAME_SKIP;
2971 spu_config.iUseFixedUpdates = 1;
2972
2973 SaveFuncs.open = save_open;
2974 SaveFuncs.read = save_read;
2975 SaveFuncs.write = save_write;
2976 SaveFuncs.seek = save_seek;
2977 SaveFuncs.close = save_close;
2978
2979 if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
2980 libretro_supports_bitmasks = true;
2981
2982 check_system_specs();
2983}
2984
2985void retro_deinit(void)
2986{
2987 if (plugins_opened)
2988 {
2989 ClosePlugins();
2990 plugins_opened = 0;
2991 }
2992 SysClose();
2993#ifdef _3DS
2994 linearFree(vout_buf);
2995#else
2996 free(vout_buf);
2997#endif
2998 vout_buf = NULL;
2999
3000#ifdef VITA
3001 deinit_vita_mmap();
3002#endif
3003 libretro_supports_bitmasks = false;
3004
3005 /* Have to reset disks struct, otherwise
3006 * fnames/flabels will leak memory */
3007 disk_init();
3008 frameskip_type = 0;
3009 frameskip_threshold = 0;
3010 frameskip_counter = 0;
3011 retro_audio_buff_active = false;
3012 retro_audio_buff_occupancy = 0;
3013 retro_audio_buff_underrun = false;
3014 retro_audio_latency = 0;
3015 update_audio_latency = false;
3016}
3017
3018#ifdef VITA
3019#include <psp2/kernel/threadmgr.h>
3020int usleep(unsigned long us)
3021{
3022 sceKernelDelayThread(us);
3023}
3024#endif
3025
3026void SysPrintf(const char *fmt, ...)
3027{
3028 va_list list;
3029 char msg[512];
3030
3031 va_start(list, fmt);
3032 vsprintf(msg, fmt, list);
3033 va_end(list);
3034
3035 if (log_cb)
3036 log_cb(RETRO_LOG_INFO, "%s", msg);
3037}
3038
3039/* Prints debug-level logs */
3040void SysDLog(const char *fmt, ...)
3041{
3042 va_list list;
3043 char msg[512];
3044
3045 va_start(list, fmt);
3046 vsprintf(msg, fmt, list);
3047 va_end(list);
3048
3049 if (log_cb)
3050 log_cb(RETRO_LOG_DEBUG, "%s", msg);
3051}
ARM optimized PCSX fork