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