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" |
fa56d360 |
16 | #include "../plugins/gpulib/cspace.h" |
38c2028e |
17 | #include "main.h" |
18 | #include "plugin.h" |
19 | #include "plugin_lib.h" |
20 | #include "revision.h" |
21 | #include "libretro.h" |
22 | |
23 | static retro_video_refresh_t video_cb; |
24 | static retro_input_poll_t input_poll_cb; |
25 | static retro_input_state_t input_state_cb; |
26 | static retro_environment_t environ_cb; |
27 | static retro_audio_sample_batch_t audio_batch_cb; |
28 | |
29 | static void *vout_buf; |
38c2028e |
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 | |
fa56d360 |
44 | static void vout_set_mode(int w, int h, int bpp) |
38c2028e |
45 | { |
38c2028e |
46 | } |
47 | |
48 | /* FIXME: either teach PCSX to blit to RGB1555 or RetroArch to support RGB565 */ |
9c59f120 |
49 | static void convert(void *buf, size_t bytes) |
38c2028e |
50 | { |
51 | unsigned int i, v, *p = buf; |
52 | |
9c59f120 |
53 | for (i = 0; i < bytes / 4; i++) { |
38c2028e |
54 | v = p[i]; |
55 | p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0); |
56 | } |
57 | } |
58 | |
fa56d360 |
59 | static void vout_flip(const void *vram, int stride, int bgr24, int w, int h) |
38c2028e |
60 | { |
fa56d360 |
61 | unsigned short *dest = vout_buf; |
62 | const unsigned short *src = vram; |
63 | int dstride = w, h1 = h; |
64 | |
65 | if (vram == NULL) { |
66 | // blanking |
67 | memset(pl_vout_buf, 0, dstride * h * 2); |
68 | goto out; |
69 | } |
70 | |
71 | if (bgr24) |
72 | { |
73 | // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here? |
74 | for (; h1-- > 0; dest += dstride, src += stride) |
75 | { |
76 | bgr888_to_rgb565(dest, src, w * 3); |
77 | } |
78 | } |
79 | else |
80 | { |
81 | for (; h1-- > 0; dest += dstride, src += stride) |
82 | { |
83 | bgr555_to_rgb565(dest, src, w * 2); |
84 | } |
85 | } |
38c2028e |
86 | |
fa56d360 |
87 | |
88 | out: |
89 | convert(vout_buf, w * h * 2); |
90 | video_cb(vout_buf, w, h, w * 2); |
91 | pl_rearmed_cbs.flip_cnt++; |
38c2028e |
92 | } |
93 | |
94 | static void vout_close(void) |
95 | { |
96 | } |
97 | |
98 | struct rearmed_cbs pl_rearmed_cbs = { |
99 | .pl_vout_open = vout_open, |
100 | .pl_vout_set_mode = vout_set_mode, |
101 | .pl_vout_flip = vout_flip, |
102 | .pl_vout_close = vout_close, |
103 | /* from psxcounters */ |
104 | .gpu_hcnt = &hSyncCount, |
105 | .gpu_frame_count = &frame_counter, |
106 | }; |
107 | |
108 | void pl_frame_limit(void) |
109 | { |
110 | /* called once per frame, make psxCpu->Execute() above return */ |
111 | stop = 1; |
112 | } |
113 | |
114 | void pl_timing_prepare(int is_pal) |
115 | { |
116 | } |
117 | |
118 | void plat_trigger_vibrate(int is_strong) |
119 | { |
120 | } |
121 | |
122 | void pl_update_gun(int *xn, int *xres, int *y, int *in) |
123 | { |
124 | } |
125 | |
126 | /* sound calls */ |
07c13dfd |
127 | static int snd_init(void) |
38c2028e |
128 | { |
07c13dfd |
129 | return 0; |
38c2028e |
130 | } |
131 | |
07c13dfd |
132 | static void snd_finish(void) |
38c2028e |
133 | { |
134 | } |
135 | |
07c13dfd |
136 | static int snd_busy(void) |
38c2028e |
137 | { |
138 | if (samples_to_send > samples_sent) |
139 | return 0; /* give more samples */ |
140 | else |
141 | return 1; |
142 | } |
143 | |
07c13dfd |
144 | static void snd_feed(void *buf, int bytes) |
38c2028e |
145 | { |
146 | audio_batch_cb(buf, bytes / 4); |
147 | samples_sent += bytes / 4; |
148 | } |
149 | |
07c13dfd |
150 | void out_register_libretro(struct out_driver *drv) |
151 | { |
152 | drv->name = "libretro"; |
153 | drv->init = snd_init; |
154 | drv->finish = snd_finish; |
155 | drv->busy = snd_busy; |
156 | drv->feed = snd_feed; |
157 | } |
158 | |
38c2028e |
159 | /* libretro */ |
160 | void retro_set_environment(retro_environment_t cb) { environ_cb = cb; } |
161 | void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } |
162 | void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; } |
163 | void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; } |
164 | void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; } |
165 | void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } |
166 | |
167 | unsigned retro_api_version(void) |
168 | { |
169 | return RETRO_API_VERSION; |
170 | } |
171 | |
172 | void retro_set_controller_port_device(unsigned port, unsigned device) |
173 | { |
174 | } |
175 | |
176 | void retro_get_system_info(struct retro_system_info *info) |
177 | { |
178 | memset(info, 0, sizeof(*info)); |
179 | info->library_name = "PCSX-ReARMed"; |
180 | info->library_version = REV; |
181 | info->valid_extensions = "bin|cue|img|mdf|pbp|cbn"; |
182 | info->need_fullpath = true; |
183 | } |
184 | |
185 | void retro_get_system_av_info(struct retro_system_av_info *info) |
186 | { |
187 | memset(info, 0, sizeof(*info)); |
188 | info->timing.fps = 60; |
189 | info->timing.sample_rate = 44100; |
190 | info->geometry.base_width = 320; |
191 | info->geometry.base_height = 240; |
192 | info->geometry.max_width = 640; |
193 | info->geometry.max_height = 512; |
194 | info->geometry.aspect_ratio = 4.0 / 3.0; |
195 | } |
196 | |
197 | /* TODO */ |
198 | size_t retro_serialize_size(void) |
199 | { |
200 | return 0; |
201 | } |
202 | |
203 | bool retro_serialize(void *data, size_t size) |
204 | { |
205 | return false; |
206 | } |
207 | |
208 | bool retro_unserialize(const void *data, size_t size) |
209 | { |
210 | return false; |
211 | } |
212 | |
213 | void retro_cheat_reset(void) |
214 | { |
215 | } |
216 | |
217 | void retro_cheat_set(unsigned index, bool enabled, const char *code) |
218 | { |
219 | } |
220 | |
221 | bool retro_load_game(const struct retro_game_info *info) |
222 | { |
223 | if (plugins_opened) { |
224 | ClosePlugins(); |
225 | plugins_opened = 0; |
226 | } |
227 | |
228 | set_cd_image(info->path); |
229 | |
230 | /* have to reload after set_cd_image for correct cdr plugin */ |
231 | if (LoadPlugins() == -1) { |
232 | printf("faled to load plugins\n"); |
233 | return false; |
234 | } |
235 | |
236 | plugins_opened = 1; |
237 | NetOpened = 0; |
238 | |
239 | if (OpenPlugins() == -1) { |
240 | printf("faled to open plugins\n"); |
241 | return false; |
242 | } |
243 | |
244 | plugin_call_rearmed_cbs(); |
245 | |
246 | Config.PsxAuto = 1; |
247 | if (CheckCdrom() == -1) { |
248 | printf("unsupported/invalid CD image: %s\n", info->path); |
249 | return false; |
250 | } |
251 | |
252 | SysReset(); |
253 | |
254 | if (LoadCdrom() == -1) { |
255 | printf("could not load CD-ROM!\n"); |
256 | return false; |
257 | } |
258 | emu_on_new_cd(); |
259 | |
260 | return true; |
261 | } |
262 | |
263 | bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info) |
264 | { |
265 | return false; |
266 | } |
267 | |
268 | void retro_unload_game(void) |
269 | { |
270 | } |
271 | |
272 | unsigned retro_get_region(void) |
273 | { |
274 | return RETRO_REGION_NTSC; |
275 | } |
276 | |
277 | void *retro_get_memory_data(unsigned id) |
278 | { |
279 | return NULL; |
280 | } |
281 | |
282 | size_t retro_get_memory_size(unsigned id) |
283 | { |
284 | return 0; |
285 | } |
286 | |
287 | void retro_reset(void) |
288 | { |
289 | SysReset(); |
290 | } |
291 | |
292 | static const unsigned short retro_psx_map[] = { |
293 | [RETRO_DEVICE_ID_JOYPAD_B] = 1 << DKEY_CROSS, |
294 | [RETRO_DEVICE_ID_JOYPAD_Y] = 1 << DKEY_SQUARE, |
295 | [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT, |
296 | [RETRO_DEVICE_ID_JOYPAD_START] = 1 << DKEY_START, |
297 | [RETRO_DEVICE_ID_JOYPAD_UP] = 1 << DKEY_UP, |
298 | [RETRO_DEVICE_ID_JOYPAD_DOWN] = 1 << DKEY_DOWN, |
299 | [RETRO_DEVICE_ID_JOYPAD_LEFT] = 1 << DKEY_LEFT, |
300 | [RETRO_DEVICE_ID_JOYPAD_RIGHT] = 1 << DKEY_RIGHT, |
301 | [RETRO_DEVICE_ID_JOYPAD_A] = 1 << DKEY_CIRCLE, |
302 | [RETRO_DEVICE_ID_JOYPAD_X] = 1 << DKEY_TRIANGLE, |
303 | [RETRO_DEVICE_ID_JOYPAD_L] = 1 << DKEY_L1, |
304 | [RETRO_DEVICE_ID_JOYPAD_R] = 1 << DKEY_R1, |
305 | [RETRO_DEVICE_ID_JOYPAD_L2] = 1 << DKEY_L2, |
306 | [RETRO_DEVICE_ID_JOYPAD_R2] = 1 << DKEY_R2, |
307 | [RETRO_DEVICE_ID_JOYPAD_L3] = 1 << DKEY_L3, |
308 | [RETRO_DEVICE_ID_JOYPAD_R3] = 1 << DKEY_R3, |
309 | }; |
310 | #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0])) |
311 | |
312 | void retro_run(void) |
313 | { |
314 | int i; |
315 | |
316 | input_poll_cb(); |
317 | in_keystate = 0; |
318 | for (i = 0; i < RETRO_PSX_MAP_LEN; i++) |
319 | if (input_state_cb(1, RETRO_DEVICE_JOYPAD, 0, i)) |
320 | in_keystate |= retro_psx_map[i]; |
321 | in_keystate <<= 16; |
322 | for (i = 0; i < RETRO_PSX_MAP_LEN; i++) |
323 | if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, i)) |
324 | in_keystate |= retro_psx_map[i]; |
325 | |
326 | stop = 0; |
327 | psxCpu->Execute(); |
328 | |
329 | samples_to_send += 44100 / 60; |
330 | } |
331 | |
332 | void retro_init(void) |
333 | { |
334 | const char *bios[] = { "scph1001", "scph5501", "scph7001" }; |
335 | const char *dir; |
336 | char path[256]; |
337 | FILE *f = NULL; |
338 | int i, ret, level; |
339 | |
340 | ret = emu_core_preinit(); |
341 | ret |= emu_core_init(); |
342 | if (ret != 0) { |
343 | printf("PCSX init failed, sorry\n"); |
344 | exit(1); |
345 | } |
346 | |
347 | vout_buf = malloc(640 * 512 * 2); |
348 | |
349 | if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) |
350 | { |
351 | snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s/", dir); |
352 | |
353 | for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) { |
354 | snprintf(path, sizeof(path), "%s/%s.bin", dir, bios[i]); |
355 | f = fopen(path, "r"); |
356 | if (f != NULL) { |
357 | snprintf(Config.Bios, sizeof(Config.Bios), "%s.bin", bios[i]); |
358 | break; |
359 | } |
360 | } |
361 | } |
362 | if (f != NULL) { |
363 | printf("found BIOS file: %s\n", Config.Bios); |
364 | fclose(f); |
365 | } |
366 | else |
367 | printf("no BIOS files found.\n"); |
368 | |
369 | level = 1; |
370 | environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); |
371 | } |
372 | |
373 | void retro_deinit(void) |
374 | { |
375 | SysClose(); |
376 | free(vout_buf); |
377 | vout_buf = NULL; |
378 | } |
379 | |