38c2028e |
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/new_dynarec/new_dynarec.h" |
07c13dfd |
15 | #include "../plugins/dfsound/out.h" |
38c2028e |
16 | #include "main.h" |
17 | #include "plugin.h" |
18 | #include "plugin_lib.h" |
19 | #include "revision.h" |
20 | #include "libretro.h" |
21 | |
22 | static retro_video_refresh_t video_cb; |
23 | static retro_input_poll_t input_poll_cb; |
24 | static retro_input_state_t input_state_cb; |
25 | static retro_environment_t environ_cb; |
26 | static retro_audio_sample_batch_t audio_batch_cb; |
27 | |
28 | static void *vout_buf; |
29 | static int vout_width, vout_height; |
30 | static int samples_sent, samples_to_send; |
31 | static int plugins_opened; |
32 | |
33 | /* PCSX ReARMed core calls and stuff */ |
34 | int in_type1, in_type2; |
35 | int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 }; |
36 | int in_keystate; |
37 | int in_enable_vibration; |
38 | |
39 | static int vout_open(void) |
40 | { |
41 | return 0; |
42 | } |
43 | |
44 | static void *vout_set_mode(int w, int h, int bpp) |
45 | { |
46 | vout_width = w; |
47 | vout_height = h; |
48 | return vout_buf; |
49 | } |
50 | |
51 | /* FIXME: either teach PCSX to blit to RGB1555 or RetroArch to support RGB565 */ |
9c59f120 |
52 | static void convert(void *buf, size_t bytes) |
38c2028e |
53 | { |
54 | unsigned int i, v, *p = buf; |
55 | |
9c59f120 |
56 | for (i = 0; i < bytes / 4; i++) { |
38c2028e |
57 | v = p[i]; |
58 | p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0); |
59 | } |
60 | } |
61 | |
62 | static void *vout_flip(void) |
63 | { |
64 | pl_rearmed_cbs.flip_cnt++; |
65 | convert(vout_buf, vout_width * vout_height * 2); |
66 | video_cb(vout_buf, vout_width, vout_height, vout_width * 2); |
67 | |
68 | return vout_buf; |
69 | } |
70 | |
71 | static void vout_close(void) |
72 | { |
73 | } |
74 | |
75 | struct rearmed_cbs pl_rearmed_cbs = { |
76 | .pl_vout_open = vout_open, |
77 | .pl_vout_set_mode = vout_set_mode, |
78 | .pl_vout_flip = vout_flip, |
79 | .pl_vout_close = vout_close, |
80 | /* from psxcounters */ |
81 | .gpu_hcnt = &hSyncCount, |
82 | .gpu_frame_count = &frame_counter, |
83 | }; |
84 | |
85 | void pl_frame_limit(void) |
86 | { |
87 | /* called once per frame, make psxCpu->Execute() above return */ |
88 | stop = 1; |
89 | } |
90 | |
91 | void pl_timing_prepare(int is_pal) |
92 | { |
93 | } |
94 | |
95 | void plat_trigger_vibrate(int is_strong) |
96 | { |
97 | } |
98 | |
99 | void pl_update_gun(int *xn, int *xres, int *y, int *in) |
100 | { |
101 | } |
102 | |
103 | /* sound calls */ |
07c13dfd |
104 | static int snd_init(void) |
38c2028e |
105 | { |
07c13dfd |
106 | return 0; |
38c2028e |
107 | } |
108 | |
07c13dfd |
109 | static void snd_finish(void) |
38c2028e |
110 | { |
111 | } |
112 | |
07c13dfd |
113 | static int snd_busy(void) |
38c2028e |
114 | { |
115 | if (samples_to_send > samples_sent) |
116 | return 0; /* give more samples */ |
117 | else |
118 | return 1; |
119 | } |
120 | |
07c13dfd |
121 | static void snd_feed(void *buf, int bytes) |
38c2028e |
122 | { |
123 | audio_batch_cb(buf, bytes / 4); |
124 | samples_sent += bytes / 4; |
125 | } |
126 | |
07c13dfd |
127 | void out_register_libretro(struct out_driver *drv) |
128 | { |
129 | drv->name = "libretro"; |
130 | drv->init = snd_init; |
131 | drv->finish = snd_finish; |
132 | drv->busy = snd_busy; |
133 | drv->feed = snd_feed; |
134 | } |
135 | |
38c2028e |
136 | /* libretro */ |
137 | void retro_set_environment(retro_environment_t cb) { environ_cb = cb; } |
138 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } |
139 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } |
140 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } |
141 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } |
142 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } |
143 | |
144 | unsigned retro_api_version(void) |
145 | { |
146 | return RETRO_API_VERSION; |
147 | } |
148 | |
149 | void retro_set_controller_port_device(unsigned port, unsigned device) |
150 | { |
151 | } |
152 | |
153 | void retro_get_system_info(struct retro_system_info *info) |
154 | { |
155 | memset(info, 0, sizeof(*info)); |
156 | info->library_name = "PCSX-ReARMed"; |
157 | info->library_version = REV; |
158 | info->valid_extensions = "bin|cue|img|mdf|pbp|cbn"; |
159 | info->need_fullpath = true; |
160 | } |
161 | |
162 | void retro_get_system_av_info(struct retro_system_av_info *info) |
163 | { |
164 | memset(info, 0, sizeof(*info)); |
165 | info->timing.fps = 60; |
166 | info->timing.sample_rate = 44100; |
167 | info->geometry.base_width = 320; |
168 | info->geometry.base_height = 240; |
169 | info->geometry.max_width = 640; |
170 | info->geometry.max_height = 512; |
171 | info->geometry.aspect_ratio = 4.0 / 3.0; |
172 | } |
173 | |
174 | /* TODO */ |
175 | size_t retro_serialize_size(void) |
176 | { |
177 | return 0; |
178 | } |
179 | |
180 | bool retro_serialize(void *data, size_t size) |
181 | { |
182 | return false; |
183 | } |
184 | |
185 | bool retro_unserialize(const void *data, size_t size) |
186 | { |
187 | return false; |
188 | } |
189 | |
190 | void retro_cheat_reset(void) |
191 | { |
192 | } |
193 | |
194 | void retro_cheat_set(unsigned index, bool enabled, const char *code) |
195 | { |
196 | } |
197 | |
198 | bool retro_load_game(const struct retro_game_info *info) |
199 | { |
200 | if (plugins_opened) { |
201 | ClosePlugins(); |
202 | plugins_opened = 0; |
203 | } |
204 | |
205 | set_cd_image(info->path); |
206 | |
207 | /* have to reload after set_cd_image for correct cdr plugin */ |
208 | if (LoadPlugins() == -1) { |
209 | printf("faled to load plugins\n"); |
210 | return false; |
211 | } |
212 | |
213 | plugins_opened = 1; |
214 | NetOpened = 0; |
215 | |
216 | if (OpenPlugins() == -1) { |
217 | printf("faled to open plugins\n"); |
218 | return false; |
219 | } |
220 | |
221 | plugin_call_rearmed_cbs(); |
222 | |
223 | Config.PsxAuto = 1; |
224 | if (CheckCdrom() == -1) { |
225 | printf("unsupported/invalid CD image: %s\n", info->path); |
226 | return false; |
227 | } |
228 | |
229 | SysReset(); |
230 | |
231 | if (LoadCdrom() == -1) { |
232 | printf("could not load CD-ROM!\n"); |
233 | return false; |
234 | } |
235 | emu_on_new_cd(); |
236 | |
237 | return true; |
238 | } |
239 | |
240 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) |
241 | { |
242 | return false; |
243 | } |
244 | |
245 | void retro_unload_game(void) |
246 | { |
247 | } |
248 | |
249 | unsigned retro_get_region(void) |
250 | { |
251 | return RETRO_REGION_NTSC; |
252 | } |
253 | |
254 | void *retro_get_memory_data(unsigned id) |
255 | { |
256 | return NULL; |
257 | } |
258 | |
259 | size_t retro_get_memory_size(unsigned id) |
260 | { |
261 | return 0; |
262 | } |
263 | |
264 | void retro_reset(void) |
265 | { |
266 | SysReset(); |
267 | } |
268 | |
269 | static const unsigned short retro_psx_map[] = { |
270 | [RETRO_DEVICE_ID_JOYPAD_B] = 1 << DKEY_CROSS, |
271 | [RETRO_DEVICE_ID_JOYPAD_Y] = 1 << DKEY_SQUARE, |
272 | [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT, |
273 | [RETRO_DEVICE_ID_JOYPAD_START] = 1 << DKEY_START, |
274 | [RETRO_DEVICE_ID_JOYPAD_UP] = 1 << DKEY_UP, |
275 | [RETRO_DEVICE_ID_JOYPAD_DOWN] = 1 << DKEY_DOWN, |
276 | [RETRO_DEVICE_ID_JOYPAD_LEFT] = 1 << DKEY_LEFT, |
277 | [RETRO_DEVICE_ID_JOYPAD_RIGHT] = 1 << DKEY_RIGHT, |
278 | [RETRO_DEVICE_ID_JOYPAD_A] = 1 << DKEY_CIRCLE, |
279 | [RETRO_DEVICE_ID_JOYPAD_X] = 1 << DKEY_TRIANGLE, |
280 | [RETRO_DEVICE_ID_JOYPAD_L] = 1 << DKEY_L1, |
281 | [RETRO_DEVICE_ID_JOYPAD_R] = 1 << DKEY_R1, |
282 | [RETRO_DEVICE_ID_JOYPAD_L2] = 1 << DKEY_L2, |
283 | [RETRO_DEVICE_ID_JOYPAD_R2] = 1 << DKEY_R2, |
284 | [RETRO_DEVICE_ID_JOYPAD_L3] = 1 << DKEY_L3, |
285 | [RETRO_DEVICE_ID_JOYPAD_R3] = 1 << DKEY_R3, |
286 | }; |
287 | #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0])) |
288 | |
289 | void retro_run(void) |
290 | { |
291 | int i; |
292 | |
293 | input_poll_cb(); |
294 | in_keystate = 0; |
295 | for (i = 0; i < RETRO_PSX_MAP_LEN; i++) |
296 | if (input_state_cb(1, RETRO_DEVICE_JOYPAD, 0, i)) |
297 | in_keystate |= retro_psx_map[i]; |
298 | in_keystate <<= 16; |
299 | for (i = 0; i < RETRO_PSX_MAP_LEN; i++) |
300 | if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, i)) |
301 | in_keystate |= retro_psx_map[i]; |
302 | |
303 | stop = 0; |
304 | psxCpu->Execute(); |
305 | |
306 | samples_to_send += 44100 / 60; |
307 | } |
308 | |
309 | void retro_init(void) |
310 | { |
311 | const char *bios[] = { "scph1001", "scph5501", "scph7001" }; |
312 | const char *dir; |
313 | char path[256]; |
314 | FILE *f = NULL; |
315 | int i, ret, level; |
316 | |
317 | ret = emu_core_preinit(); |
318 | ret |= emu_core_init(); |
319 | if (ret != 0) { |
320 | printf("PCSX init failed, sorry\n"); |
321 | exit(1); |
322 | } |
323 | |
324 | vout_buf = malloc(640 * 512 * 2); |
325 | |
326 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) |
327 | { |
328 | snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s/", dir); |
329 | |
330 | for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) { |
331 | snprintf(path, sizeof(path), "%s/%s.bin", dir, bios[i]); |
332 | f = fopen(path, "r"); |
333 | if (f != NULL) { |
334 | snprintf(Config.Bios, sizeof(Config.Bios), "%s.bin", bios[i]); |
335 | break; |
336 | } |
337 | } |
338 | } |
339 | if (f != NULL) { |
340 | printf("found BIOS file: %s\n", Config.Bios); |
341 | fclose(f); |
342 | } |
343 | else |
344 | printf("no BIOS files found.\n"); |
345 | |
346 | level = 1; |
347 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); |
348 | } |
349 | |
350 | void retro_deinit(void) |
351 | { |
352 | SysClose(); |
353 | free(vout_buf); |
354 | vout_buf = NULL; |
355 | } |
356 | |