4 * This work is licensed under the terms of the GNU GPLv2 or later.
5 * See the COPYING file in the top-level directory.
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"
20 #include "plugin_lib.h"
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;
30 static void *vout_buf;
31 static int samples_sent, samples_to_send;
32 static int plugins_opened;
34 /* memory card data */
35 extern char Mcd1Data[MCD_SIZE];
36 extern char McdDisable[2];
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 };
42 int in_enable_vibration;
44 static void init_memcard(char *mcd_data)
49 memset(mcd_data, 0, MCD_SIZE);
51 mcd_data[off++] = 'M';
52 mcd_data[off++] = 'C';
54 mcd_data[off++] = 0x0e;
56 for (i = 0; i < 15; i++) {
57 mcd_data[off++] = 0xa0;
59 mcd_data[off++] = 0xff;
60 mcd_data[off++] = 0xff;
62 mcd_data[off++] = 0xa0;
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;
71 mcd_data[off++] = 0xff;
72 mcd_data[off++] = 0xff;
77 static int vout_open(void)
82 static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
86 #ifndef FRONTEND_SUPPORTS_RGB565
87 static void convert(void *buf, size_t bytes)
89 unsigned int i, v, *p = buf;
91 for (i = 0; i < bytes / 4; i++) {
93 p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
98 static unsigned game_width;
99 static unsigned game_height;
100 static unsigned game_fb_dirty;
102 static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
104 unsigned short *dest = vout_buf;
105 const unsigned short *src = vram;
106 int dstride = w, h1 = h;
110 memset(vout_buf, 0, dstride * h * 2);
116 // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
117 for (; h1-- > 0; dest += dstride, src += stride)
119 bgr888_to_rgb565(dest, src, w * 3);
124 for (; h1-- > 0; dest += dstride, src += stride)
126 bgr555_to_rgb565(dest, src, w * 2);
131 #ifndef FRONTEND_SUPPORTS_RGB565
132 convert(vout_buf, w * h * 2);
137 pl_rearmed_cbs.flip_cnt++;
140 static void vout_close(void)
144 static void *pl_mmap(unsigned int size)
146 return psxMap(0, size, 0, MAP_TAG_VRAM);
149 static void pl_munmap(void *ptr, unsigned int size)
151 psxUnmap(ptr, size, MAP_TAG_VRAM);
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,
161 /* from psxcounters */
162 .gpu_hcnt = &hSyncCount,
163 .gpu_frame_count = &frame_counter,
166 void pl_frame_limit(void)
168 /* called once per frame, make psxCpu->Execute() above return */
172 void pl_timing_prepare(int is_pal)
176 void plat_trigger_vibrate(int is_strong)
180 void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
185 static int snd_init(void)
190 static void snd_finish(void)
194 static int snd_busy(void)
196 if (samples_to_send > samples_sent)
197 return 0; /* give more samples */
202 static void snd_feed(void *buf, int bytes)
204 audio_batch_cb(buf, bytes / 4);
205 samples_sent += bytes / 4;
208 void out_register_libretro(struct out_driver *drv)
210 drv->name = "libretro";
211 drv->init = snd_init;
212 drv->finish = snd_finish;
213 drv->busy = snd_busy;
214 drv->feed = snd_feed;
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; }
225 unsigned retro_api_version(void)
227 return RETRO_API_VERSION;
230 void retro_set_controller_port_device(unsigned port, unsigned device)
234 void retro_get_system_info(struct retro_system_info *info)
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;
243 void retro_get_system_av_info(struct retro_system_av_info *info)
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;
256 size_t retro_serialize_size(void)
261 bool retro_serialize(void *data, size_t size)
266 bool retro_unserialize(const void *data, size_t size)
271 void retro_cheat_reset(void)
275 void retro_cheat_set(unsigned index, bool enabled, const char *code)
279 bool retro_load_game(const struct retro_game_info *info)
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");
288 if (plugins_opened) {
293 set_cd_image(info->path);
295 /* have to reload after set_cd_image for correct cdr plugin */
296 if (LoadPlugins() == -1) {
297 SysPrintf("failed to load plugins\n");
304 if (OpenPlugins() == -1) {
305 SysPrintf("failed to open plugins\n");
309 plugin_call_rearmed_cbs();
312 if (CheckCdrom() == -1) {
313 SysPrintf("unsupported/invalid CD image: %s\n", info->path);
319 if (LoadCdrom() == -1) {
320 SysPrintf("could not load CD-ROM!\n");
328 bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info)
333 void retro_unload_game(void)
337 unsigned retro_get_region(void)
339 return RETRO_REGION_NTSC;
342 void *retro_get_memory_data(unsigned id)
347 size_t retro_get_memory_size(unsigned id)
352 void retro_reset(void)
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,
375 #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[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];
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];
394 samples_to_send += 44100 / 60;
396 video_cb(game_fb_dirty ? vout_buf : NULL, game_width, game_height, game_width * 2);
400 void retro_init(void)
402 const char *bios[] = { "scph1001", "scph5501", "scph7001" };
408 ret = emu_core_preinit();
409 ret |= emu_core_init();
411 SysPrintf("PCSX init failed.\n");
415 vout_buf = malloc(640 * 512 * 2);
417 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
419 snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s/", dir);
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");
425 snprintf(Config.Bios, sizeof(Config.Bios), "%s.bin", bios[i]);
431 SysPrintf("found BIOS file: %s\n", Config.Bios);
435 SysPrintf("no BIOS files found.\n");
438 environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
442 init_memcard(Mcd1Data);
445 void retro_deinit(void)