| 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 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <string.h> |
| 11 | |
| 12 | #include "../libpcsxcore/misc.h" |
| 13 | #include "../libpcsxcore/psxcounters.h" |
| 14 | #include "../libpcsxcore/psxmem_map.h" |
| 15 | #include "../libpcsxcore/new_dynarec/new_dynarec.h" |
| 16 | #include "../plugins/dfsound/out.h" |
| 17 | #include "../plugins/gpulib/cspace.h" |
| 18 | #include "main.h" |
| 19 | #include "plugin.h" |
| 20 | #include "plugin_lib.h" |
| 21 | #include "revision.h" |
| 22 | #include "libretro.h" |
| 23 | |
| 24 | static retro_video_refresh_t video_cb; |
| 25 | static retro_input_poll_t input_poll_cb; |
| 26 | static retro_input_state_t input_state_cb; |
| 27 | static retro_environment_t environ_cb; |
| 28 | static retro_audio_sample_batch_t audio_batch_cb; |
| 29 | |
| 30 | static void *vout_buf; |
| 31 | static int samples_sent, samples_to_send; |
| 32 | static int plugins_opened; |
| 33 | |
| 34 | /* memory card data */ |
| 35 | extern char Mcd1Data[MCD_SIZE]; |
| 36 | extern char McdDisable[2]; |
| 37 | |
| 38 | /* PCSX ReARMed core calls and stuff */ |
| 39 | int in_type1, in_type2; |
| 40 | int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 }; |
| 41 | int in_keystate; |
| 42 | int in_enable_vibration; |
| 43 | |
| 44 | static void init_memcard(char *mcd_data) |
| 45 | { |
| 46 | unsigned off = 0; |
| 47 | unsigned i; |
| 48 | |
| 49 | memset(mcd_data, 0, MCD_SIZE); |
| 50 | |
| 51 | mcd_data[off++] = 'M'; |
| 52 | mcd_data[off++] = 'C'; |
| 53 | off += 0x7d; |
| 54 | mcd_data[off++] = 0x0e; |
| 55 | |
| 56 | for (i = 0; i < 15; i++) { |
| 57 | mcd_data[off++] = 0xa0; |
| 58 | off += 0x07; |
| 59 | mcd_data[off++] = 0xff; |
| 60 | mcd_data[off++] = 0xff; |
| 61 | off += 0x75; |
| 62 | mcd_data[off++] = 0xa0; |
| 63 | } |
| 64 | |
| 65 | for (i = 0; i < 20; i++) { |
| 66 | mcd_data[off++] = 0xff; |
| 67 | mcd_data[off++] = 0xff; |
| 68 | mcd_data[off++] = 0xff; |
| 69 | mcd_data[off++] = 0xff; |
| 70 | off += 0x04; |
| 71 | mcd_data[off++] = 0xff; |
| 72 | mcd_data[off++] = 0xff; |
| 73 | off += 0x76; |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | static int vout_open(void) |
| 78 | { |
| 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp) |
| 83 | { |
| 84 | } |
| 85 | |
| 86 | #ifndef FRONTEND_SUPPORTS_RGB565 |
| 87 | static void convert(void *buf, size_t bytes) |
| 88 | { |
| 89 | unsigned int i, v, *p = buf; |
| 90 | |
| 91 | for (i = 0; i < bytes / 4; i++) { |
| 92 | v = p[i]; |
| 93 | p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0); |
| 94 | } |
| 95 | } |
| 96 | #endif |
| 97 | |
| 98 | static unsigned game_width; |
| 99 | static unsigned game_height; |
| 100 | static unsigned game_fb_dirty; |
| 101 | |
| 102 | static void vout_flip(const void *vram, int stride, int bgr24, int w, int h) |
| 103 | { |
| 104 | unsigned short *dest = vout_buf; |
| 105 | const unsigned short *src = vram; |
| 106 | int dstride = w, h1 = h; |
| 107 | |
| 108 | if (vram == NULL) { |
| 109 | // blanking |
| 110 | memset(vout_buf, 0, dstride * h * 2); |
| 111 | goto out; |
| 112 | } |
| 113 | |
| 114 | if (bgr24) |
| 115 | { |
| 116 | // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here? |
| 117 | for (; h1-- > 0; dest += dstride, src += stride) |
| 118 | { |
| 119 | bgr888_to_rgb565(dest, src, w * 3); |
| 120 | } |
| 121 | } |
| 122 | else |
| 123 | { |
| 124 | for (; h1-- > 0; dest += dstride, src += stride) |
| 125 | { |
| 126 | bgr555_to_rgb565(dest, src, w * 2); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | out: |
| 131 | #ifndef FRONTEND_SUPPORTS_RGB565 |
| 132 | convert(vout_buf, w * h * 2); |
| 133 | #endif |
| 134 | game_width = w; |
| 135 | game_height = h; |
| 136 | game_fb_dirty = 1; |
| 137 | pl_rearmed_cbs.flip_cnt++; |
| 138 | } |
| 139 | |
| 140 | static void vout_close(void) |
| 141 | { |
| 142 | } |
| 143 | |
| 144 | static void *pl_mmap(unsigned int size) |
| 145 | { |
| 146 | return psxMap(0, size, 0, MAP_TAG_VRAM); |
| 147 | } |
| 148 | |
| 149 | static void pl_munmap(void *ptr, unsigned int size) |
| 150 | { |
| 151 | psxUnmap(ptr, size, MAP_TAG_VRAM); |
| 152 | } |
| 153 | |
| 154 | struct rearmed_cbs pl_rearmed_cbs = { |
| 155 | .pl_vout_open = vout_open, |
| 156 | .pl_vout_set_mode = vout_set_mode, |
| 157 | .pl_vout_flip = vout_flip, |
| 158 | .pl_vout_close = vout_close, |
| 159 | .mmap = pl_mmap, |
| 160 | .munmap = pl_munmap, |
| 161 | /* from psxcounters */ |
| 162 | .gpu_hcnt = &hSyncCount, |
| 163 | .gpu_frame_count = &frame_counter, |
| 164 | }; |
| 165 | |
| 166 | void pl_frame_limit(void) |
| 167 | { |
| 168 | /* called once per frame, make psxCpu->Execute() above return */ |
| 169 | stop = 1; |
| 170 | } |
| 171 | |
| 172 | void pl_timing_prepare(int is_pal) |
| 173 | { |
| 174 | } |
| 175 | |
| 176 | void plat_trigger_vibrate(int is_strong) |
| 177 | { |
| 178 | } |
| 179 | |
| 180 | void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in) |
| 181 | { |
| 182 | } |
| 183 | |
| 184 | /* sound calls */ |
| 185 | static int snd_init(void) |
| 186 | { |
| 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | static void snd_finish(void) |
| 191 | { |
| 192 | } |
| 193 | |
| 194 | static int snd_busy(void) |
| 195 | { |
| 196 | if (samples_to_send > samples_sent) |
| 197 | return 0; /* give more samples */ |
| 198 | else |
| 199 | return 1; |
| 200 | } |
| 201 | |
| 202 | static void snd_feed(void *buf, int bytes) |
| 203 | { |
| 204 | audio_batch_cb(buf, bytes / 4); |
| 205 | samples_sent += bytes / 4; |
| 206 | } |
| 207 | |
| 208 | void out_register_libretro(struct out_driver *drv) |
| 209 | { |
| 210 | drv->name = "libretro"; |
| 211 | drv->init = snd_init; |
| 212 | drv->finish = snd_finish; |
| 213 | drv->busy = snd_busy; |
| 214 | drv->feed = snd_feed; |
| 215 | } |
| 216 | |
| 217 | /* libretro */ |
| 218 | void retro_set_environment(retro_environment_t cb) { environ_cb = cb; } |
| 219 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } |
| 220 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } |
| 221 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } |
| 222 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } |
| 223 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } |
| 224 | |
| 225 | unsigned retro_api_version(void) |
| 226 | { |
| 227 | return RETRO_API_VERSION; |
| 228 | } |
| 229 | |
| 230 | void retro_set_controller_port_device(unsigned port, unsigned device) |
| 231 | { |
| 232 | } |
| 233 | |
| 234 | void retro_get_system_info(struct retro_system_info *info) |
| 235 | { |
| 236 | memset(info, 0, sizeof(*info)); |
| 237 | info->library_name = "PCSX-ReARMed"; |
| 238 | info->library_version = REV; |
| 239 | info->valid_extensions = "bin|cue|img|mdf|pbp|cbn"; |
| 240 | info->need_fullpath = true; |
| 241 | } |
| 242 | |
| 243 | void retro_get_system_av_info(struct retro_system_av_info *info) |
| 244 | { |
| 245 | memset(info, 0, sizeof(*info)); |
| 246 | info->timing.fps = 60; |
| 247 | info->timing.sample_rate = 44100; |
| 248 | info->geometry.base_width = 320; |
| 249 | info->geometry.base_height = 240; |
| 250 | info->geometry.max_width = 640; |
| 251 | info->geometry.max_height = 512; |
| 252 | info->geometry.aspect_ratio = 4.0 / 3.0; |
| 253 | } |
| 254 | |
| 255 | /* TODO */ |
| 256 | size_t retro_serialize_size(void) |
| 257 | { |
| 258 | return 0; |
| 259 | } |
| 260 | |
| 261 | bool retro_serialize(void *data, size_t size) |
| 262 | { |
| 263 | return false; |
| 264 | } |
| 265 | |
| 266 | bool retro_unserialize(const void *data, size_t size) |
| 267 | { |
| 268 | return false; |
| 269 | } |
| 270 | |
| 271 | void retro_cheat_reset(void) |
| 272 | { |
| 273 | } |
| 274 | |
| 275 | void retro_cheat_set(unsigned index, bool enabled, const char *code) |
| 276 | { |
| 277 | } |
| 278 | |
| 279 | bool retro_load_game(const struct retro_game_info *info) |
| 280 | { |
| 281 | #ifdef FRONTEND_SUPPORTS_RGB565 |
| 282 | enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; |
| 283 | if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { |
| 284 | SysPrintf("RGB565 supported, using it\n"); |
| 285 | } |
| 286 | #endif |
| 287 | |
| 288 | if (plugins_opened) { |
| 289 | ClosePlugins(); |
| 290 | plugins_opened = 0; |
| 291 | } |
| 292 | |
| 293 | set_cd_image(info->path); |
| 294 | |
| 295 | /* have to reload after set_cd_image for correct cdr plugin */ |
| 296 | if (LoadPlugins() == -1) { |
| 297 | SysPrintf("failed to load plugins\n"); |
| 298 | return false; |
| 299 | } |
| 300 | |
| 301 | plugins_opened = 1; |
| 302 | NetOpened = 0; |
| 303 | |
| 304 | if (OpenPlugins() == -1) { |
| 305 | SysPrintf("failed to open plugins\n"); |
| 306 | return false; |
| 307 | } |
| 308 | |
| 309 | plugin_call_rearmed_cbs(); |
| 310 | |
| 311 | Config.PsxAuto = 1; |
| 312 | if (CheckCdrom() == -1) { |
| 313 | SysPrintf("unsupported/invalid CD image: %s\n", info->path); |
| 314 | return false; |
| 315 | } |
| 316 | |
| 317 | SysReset(); |
| 318 | |
| 319 | if (LoadCdrom() == -1) { |
| 320 | SysPrintf("could not load CD-ROM!\n"); |
| 321 | return false; |
| 322 | } |
| 323 | emu_on_new_cd(0); |
| 324 | |
| 325 | return true; |
| 326 | } |
| 327 | |
| 328 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) |
| 329 | { |
| 330 | return false; |
| 331 | } |
| 332 | |
| 333 | void retro_unload_game(void) |
| 334 | { |
| 335 | } |
| 336 | |
| 337 | unsigned retro_get_region(void) |
| 338 | { |
| 339 | return RETRO_REGION_NTSC; |
| 340 | } |
| 341 | |
| 342 | void *retro_get_memory_data(unsigned id) |
| 343 | { |
| 344 | return Mcd1Data; |
| 345 | } |
| 346 | |
| 347 | size_t retro_get_memory_size(unsigned id) |
| 348 | { |
| 349 | return MCD_SIZE; |
| 350 | } |
| 351 | |
| 352 | void retro_reset(void) |
| 353 | { |
| 354 | SysReset(); |
| 355 | } |
| 356 | |
| 357 | static const unsigned short retro_psx_map[] = { |
| 358 | [RETRO_DEVICE_ID_JOYPAD_B] = 1 << DKEY_CROSS, |
| 359 | [RETRO_DEVICE_ID_JOYPAD_Y] = 1 << DKEY_SQUARE, |
| 360 | [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT, |
| 361 | [RETRO_DEVICE_ID_JOYPAD_START] = 1 << DKEY_START, |
| 362 | [RETRO_DEVICE_ID_JOYPAD_UP] = 1 << DKEY_UP, |
| 363 | [RETRO_DEVICE_ID_JOYPAD_DOWN] = 1 << DKEY_DOWN, |
| 364 | [RETRO_DEVICE_ID_JOYPAD_LEFT] = 1 << DKEY_LEFT, |
| 365 | [RETRO_DEVICE_ID_JOYPAD_RIGHT] = 1 << DKEY_RIGHT, |
| 366 | [RETRO_DEVICE_ID_JOYPAD_A] = 1 << DKEY_CIRCLE, |
| 367 | [RETRO_DEVICE_ID_JOYPAD_X] = 1 << DKEY_TRIANGLE, |
| 368 | [RETRO_DEVICE_ID_JOYPAD_L] = 1 << DKEY_L1, |
| 369 | [RETRO_DEVICE_ID_JOYPAD_R] = 1 << DKEY_R1, |
| 370 | [RETRO_DEVICE_ID_JOYPAD_L2] = 1 << DKEY_L2, |
| 371 | [RETRO_DEVICE_ID_JOYPAD_R2] = 1 << DKEY_R2, |
| 372 | [RETRO_DEVICE_ID_JOYPAD_L3] = 1 << DKEY_L3, |
| 373 | [RETRO_DEVICE_ID_JOYPAD_R3] = 1 << DKEY_R3, |
| 374 | }; |
| 375 | #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0])) |
| 376 | |
| 377 | void retro_run(void) |
| 378 | { |
| 379 | int i; |
| 380 | |
| 381 | input_poll_cb(); |
| 382 | in_keystate = 0; |
| 383 | for (i = 0; i < RETRO_PSX_MAP_LEN; i++) |
| 384 | if (input_state_cb(1, RETRO_DEVICE_JOYPAD, 0, i)) |
| 385 | in_keystate |= retro_psx_map[i]; |
| 386 | in_keystate <<= 16; |
| 387 | for (i = 0; i < RETRO_PSX_MAP_LEN; i++) |
| 388 | if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, i)) |
| 389 | in_keystate |= retro_psx_map[i]; |
| 390 | |
| 391 | stop = 0; |
| 392 | psxCpu->Execute(); |
| 393 | |
| 394 | samples_to_send += 44100 / 60; |
| 395 | |
| 396 | video_cb(game_fb_dirty ? vout_buf : NULL, game_width, game_height, game_width * 2); |
| 397 | game_fb_dirty = 0; |
| 398 | } |
| 399 | |
| 400 | void retro_init(void) |
| 401 | { |
| 402 | const char *bios[] = { "scph1001", "scph5501", "scph7001" }; |
| 403 | const char *dir; |
| 404 | char path[256]; |
| 405 | FILE *f = NULL; |
| 406 | int i, ret, level; |
| 407 | |
| 408 | ret = emu_core_preinit(); |
| 409 | ret |= emu_core_init(); |
| 410 | if (ret != 0) { |
| 411 | SysPrintf("PCSX init failed.\n"); |
| 412 | exit(1); |
| 413 | } |
| 414 | |
| 415 | vout_buf = malloc(640 * 512 * 2); |
| 416 | |
| 417 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) |
| 418 | { |
| 419 | snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s/", dir); |
| 420 | |
| 421 | for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) { |
| 422 | snprintf(path, sizeof(path), "%s/%s.bin", dir, bios[i]); |
| 423 | f = fopen(path, "r"); |
| 424 | if (f != NULL) { |
| 425 | snprintf(Config.Bios, sizeof(Config.Bios), "%s.bin", bios[i]); |
| 426 | break; |
| 427 | } |
| 428 | } |
| 429 | } |
| 430 | if (f != NULL) { |
| 431 | SysPrintf("found BIOS file: %s\n", Config.Bios); |
| 432 | fclose(f); |
| 433 | } |
| 434 | else |
| 435 | SysPrintf("no BIOS files found.\n"); |
| 436 | |
| 437 | level = 1; |
| 438 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); |
| 439 | |
| 440 | McdDisable[0] = 0; |
| 441 | McdDisable[1] = 1; |
| 442 | init_memcard(Mcd1Data); |
| 443 | } |
| 444 | |
| 445 | void retro_deinit(void) |
| 446 | { |
| 447 | SysClose(); |
| 448 | free(vout_buf); |
| 449 | vout_buf = NULL; |
| 450 | } |