pandora: use quad buffering so that ff doesn't tear
[picodrive.git] / platform / pandora / plat.c
CommitLineData
cff531af 1/*\r
2 * PicoDrive\r
3 * (C) notaz, 2010,2011\r
4 *\r
5 * This work is licensed under the terms of MAME license.\r
6 * See COPYING file in the top-level directory.\r
7 */\r
c7eb229a 8\r
9#include <stdio.h>\r
10#include <unistd.h>\r
c7eb229a 11#include <sys/types.h>\r
12#include <sys/stat.h>\r
13#include <fcntl.h>\r
14#include <sys/ioctl.h>\r
15#include <unistd.h>\r
16#include <linux/fb.h>\r
17#include <linux/omapfb.h>\r
d4d62665 18#include <linux/input.h>\r
c7eb229a 19\r
20#include "../common/emu.h"\r
c7eb229a 21#include "../common/arm_utils.h"\r
d4d62665 22#include "../common/input_pico.h"\r
23#include "../common/version.h"\r
24#include "../libpicofe/input.h"\r
25#include "../libpicofe/menu.h"\r
26#include "../libpicofe/plat.h"\r
27#include "../libpicofe/linux/in_evdev.h"\r
28#include "../libpicofe/linux/sndout_oss.h"\r
29#include "../libpicofe/linux/fbdev.h"\r
30#include "../libpicofe/linux/xenv.h"\r
c7eb229a 31#include "plat.h"\r
32#include "asm_utils.h"\r
c7eb229a 33\r
34#include <pico/pico_int.h>\r
35\r
c7eb229a 36static struct vout_fbdev *main_fb, *layer_fb;\r
21ebcfd3 37// g_layer_* - in use, g_layer_c* - configured custom\r
38int g_layer_cx, g_layer_cy, g_layer_cw, g_layer_ch;\r
c7eb229a 39static int g_layer_x, g_layer_y;\r
40static int g_layer_w = 320, g_layer_h = 240;\r
d40231e2 41static int g_osd_fps_x, g_osd_y, doing_bg_frame;\r
c7eb229a 42\r
43static const char pnd_script_base[] = "sudo -n /usr/pandora/scripts";\r
d4d62665 44static unsigned char __attribute__((aligned(4))) fb_copy[320 * 240 * 2];\r
d40231e2 45static void *temp_frame;\r
c7eb229a 46const char *renderer_names[] = { NULL };\r
47const char *renderer_names32x[] = { NULL };\r
c7eb229a 48\r
45285368 49static const char * const pandora_gpio_keys[KEY_MAX + 1] = {\r
50 [0 ... KEY_MAX] = NULL,\r
51 [KEY_UP] = "Up",\r
52 [KEY_LEFT] = "Left",\r
53 [KEY_RIGHT] = "Right",\r
54 [KEY_DOWN] = "Down",\r
55 [KEY_HOME] = "A",\r
56 [KEY_PAGEDOWN] = "X",\r
57 [KEY_END] = "B",\r
58 [KEY_PAGEUP] = "Y",\r
59 [KEY_RIGHTSHIFT]= "L",\r
60 [KEY_RIGHTCTRL] = "R",\r
61 [KEY_LEFTALT] = "Start",\r
62 [KEY_LEFTCTRL] = "Select",\r
63 [KEY_MENU] = "Pandora",\r
64};\r
65\r
d4d62665 66static struct in_default_bind in_evdev_defbinds[] =\r
67{\r
68 { KEY_UP, IN_BINDTYPE_PLAYER12, GBTN_UP },\r
69 { KEY_DOWN, IN_BINDTYPE_PLAYER12, GBTN_DOWN },\r
70 { KEY_LEFT, IN_BINDTYPE_PLAYER12, GBTN_LEFT },\r
71 { KEY_RIGHT, IN_BINDTYPE_PLAYER12, GBTN_RIGHT },\r
72 { KEY_A, IN_BINDTYPE_PLAYER12, GBTN_A },\r
73 { KEY_S, IN_BINDTYPE_PLAYER12, GBTN_B },\r
74 { KEY_D, IN_BINDTYPE_PLAYER12, GBTN_C },\r
75 { KEY_ENTER, IN_BINDTYPE_PLAYER12, GBTN_START },\r
b011c2af 76 { KEY_F, IN_BINDTYPE_EMU, PEVB_FF },\r
21ebcfd3 77 { KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },\r
78 { KEY_SPACE, IN_BINDTYPE_EMU, PEVB_MENU },\r
79 /* Pandora */\r
d4d62665 80 { KEY_HOME, IN_BINDTYPE_PLAYER12, GBTN_A },\r
81 { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, GBTN_B },\r
82 { KEY_END, IN_BINDTYPE_PLAYER12, GBTN_C },\r
83 { KEY_LEFTALT, IN_BINDTYPE_PLAYER12, GBTN_START },\r
21ebcfd3 84 { KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },\r
85 { KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },\r
86 { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },\r
87 { 0, 0, 0 }\r
88};\r
89\r
c7eb229a 90void pemu_prep_defconfig(void)\r
91{\r
92 defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;\r
93 defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX|POPT_EN_MCD_PSYNC;\r
94 defaultConfig.scaling = SCALE_2x2_3x2;\r
95}\r
96\r
97void pemu_validate_config(void)\r
98{\r
d4d62665 99 currentConfig.CPUclock = plat_target_cpu_clock_get();\r
c7eb229a 100}\r
101\r
102static void osd_text(int x, int y, const char *text)\r
103{\r
104 int len = strlen(text)*8;\r
105 int i, h;\r
106\r
107 len++;\r
b011c2af 108 if (x + len > g_screen_width)\r
109 len = g_screen_width - x;\r
110\r
c7eb229a 111 for (h = 0; h < 8; h++) {\r
112 unsigned short *p;\r
113 p = (unsigned short *)g_screen_ptr + x + g_screen_width*(y + h);\r
b011c2af 114 for (i = len; i > 0; i--, p++)\r
c7eb229a 115 *p = (*p>>2) & 0x39e7;\r
116 }\r
117 emu_text_out16(x, y, text);\r
118}\r
119\r
120static void draw_cd_leds(void)\r
121{\r
122 int old_reg;\r
123 old_reg = Pico_mcd->s68k_regs[0];\r
124\r
125 if (0) {\r
126 // 8-bit modes\r
127 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
128 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
129 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
130 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
131 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
132 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
133 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
134 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
135 } else {\r
136 // 16-bit modes\r
137 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
138 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
139 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
140 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
141 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
142 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
143 }\r
144}\r
145\r
c7eb229a 146void pemu_finalize_frame(const char *fps, const char *notice)\r
147{\r
bf61bea0 148 if (notice && notice[0])\r
149 osd_text(2, g_osd_y, notice);\r
150 if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS))\r
151 osd_text(g_osd_fps_x, g_osd_y, fps);\r
c7eb229a 152 if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
153 draw_cd_leds();\r
154}\r
155\r
156void plat_video_flip(void)\r
157{\r
158 g_screen_ptr = vout_fbdev_flip(layer_fb);\r
41946d70 159 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
10ef62e3 160\r
161 // XXX: drain OS event queue here, maybe we'll actually use it someday..\r
d4d62665 162 xenv_update(NULL, NULL, NULL, NULL);\r
c7eb229a 163}\r
164\r
165void plat_video_toggle_renderer(int change, int is_menu)\r
166{\r
167}\r
168\r
169void plat_video_menu_enter(int is_rom_loaded)\r
170{\r
171}\r
172\r
173void plat_video_menu_begin(void)\r
174{\r
c7eb229a 175}\r
176\r
177void plat_video_menu_end(void)\r
178{\r
179 g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
180}\r
181\r
d4d62665 182void plat_video_menu_leave(void)\r
183{\r
184}\r
185\r
c7eb229a 186void plat_video_wait_vsync(void)\r
187{\r
188 vout_fbdev_wait_vsync(main_fb);\r
189}\r
190\r
191void plat_status_msg_clear(void)\r
192{\r
7c18e34a 193 vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);\r
c7eb229a 194}\r
195\r
196void plat_status_msg_busy_next(const char *msg)\r
197{\r
198 plat_status_msg_clear();\r
199 pemu_finalize_frame("", msg);\r
200 plat_video_flip();\r
201 emu_status_msg("");\r
202 reset_timing = 1;\r
203}\r
204\r
205void plat_status_msg_busy_first(const char *msg)\r
206{\r
207 plat_status_msg_busy_next(msg);\r
208}\r
209\r
210void plat_update_volume(int has_changed, int is_up)\r
211{\r
45285368 212}\r
c7eb229a 213\r
45285368 214void pemu_forced_frame(int no_scale, int do_emu)\r
215{\r
d40231e2 216 doing_bg_frame = 1;\r
a4edca53 217 emu_cmn_forced_frame(no_scale, do_emu);\r
d40231e2 218 doing_bg_frame = 0;\r
45285368 219\r
220 // making a copy because enabling the layer clears it's mem\r
d4d62665 221 memcpy((void *)fb_copy, g_screen_ptr, sizeof(fb_copy));\r
222 g_menubg_src_ptr = fb_copy;\r
c7eb229a 223}\r
224\r
225void pemu_sound_start(void)\r
226{\r
d4d62665 227 emu_sound_start();\r
c7eb229a 228}\r
229\r
230void plat_debug_cat(char *str)\r
231{\r
232}\r
233\r
234static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)\r
235{\r
236 struct omapfb_plane_info pi;\r
237 struct omapfb_mem_info mi;\r
238 int ret;\r
239\r
240 ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);\r
241 if (ret != 0) {\r
242 perror("QUERY_PLANE");\r
243 return -1;\r
244 }\r
245\r
246 ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);\r
247 if (ret != 0) {\r
248 perror("QUERY_MEM");\r
249 return -1;\r
250 }\r
251\r
252 /* must disable when changing stuff */\r
253 if (pi.enabled) {\r
254 pi.enabled = 0;\r
255 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
256 if (ret != 0)\r
257 perror("SETUP_PLANE");\r
258 }\r
259\r
260 mi.size = 320*240*2*4;\r
261 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);\r
262 if (ret != 0) {\r
263 perror("SETUP_MEM");\r
264 return -1;\r
265 }\r
266\r
267 pi.pos_x = x;\r
268 pi.pos_y = y;\r
269 pi.out_width = w;\r
270 pi.out_height = h;\r
271 pi.enabled = enabled;\r
272\r
273 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
274 if (ret != 0) {\r
275 perror("SETUP_PLANE");\r
276 return -1;\r
277 }\r
278\r
279 return 0;\r
280}\r
281\r
282int pnd_setup_layer(int enabled, int x, int y, int w, int h)\r
283{\r
284 return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);\r
285}\r
286\r
287void pnd_restore_layer_data(void)\r
288{\r
739e1043 289 short *t = (short *)fb_copy + 320*240 / 2 + 160;\r
c7eb229a 290\r
291 // right now this is used by menu, which wants to preview something\r
292 // so try to get something on the layer.\r
293 if ((t[0] | t[5] | t[13]) == 0)\r
294 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);\r
295\r
d4d62665 296 memcpy(g_screen_ptr, (void *)fb_copy, 320*240*2);\r
c7eb229a 297 plat_video_flip();\r
298}\r
299\r
c7eb229a 300void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
301{\r
302 int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;\r
303\r
d40231e2 304 if (doing_bg_frame)\r
305 return;\r
306\r
c7eb229a 307 if (is_32cols) {\r
308 fb_w = 256;\r
309 fb_left = fb_right = 32;\r
310 }\r
311\r
312 switch (currentConfig.scaling) {\r
313 case SCALE_1x1:\r
314 g_layer_w = fb_w;\r
315 g_layer_h = fb_h;\r
316 break;\r
317 case SCALE_2x2_3x2:\r
318 g_layer_w = fb_w * (is_32cols ? 3 : 2);\r
319 g_layer_h = fb_h * 2;\r
320 break;\r
321 case SCALE_2x2_2x2:\r
322 g_layer_w = fb_w * 2;\r
323 g_layer_h = fb_h * 2;\r
324 break;\r
325 case SCALE_FULLSCREEN:\r
326 g_layer_w = 800;\r
327 g_layer_h = 480;\r
328 break;\r
329 case SCALE_CUSTOM:\r
330 g_layer_x = g_layer_cx;\r
331 g_layer_y = g_layer_cy;\r
332 g_layer_w = g_layer_cw;\r
333 g_layer_h = g_layer_ch;\r
334 break;\r
335 }\r
336\r
337 if (currentConfig.scaling != SCALE_CUSTOM) {\r
338 // center the layer\r
339 g_layer_x = 800 / 2 - g_layer_w / 2;\r
340 g_layer_y = 480 / 2 - g_layer_h / 2;\r
341 }\r
342\r
343 switch (currentConfig.scaling) {\r
344 case SCALE_FULLSCREEN:\r
345 case SCALE_CUSTOM:\r
346 fb_top = start_line;\r
347 fb_h = line_count;\r
348 break;\r
349 }\r
350 g_osd_fps_x = is_32cols ? 232 : 264;\r
351 g_osd_y = fb_top + fb_h - 8;\r
352\r
353 pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
c7eb229a 354 vout_fbdev_clear(layer_fb);\r
b011c2af 355 vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 4);\r
bf61bea0 356 plat_video_flip();\r
b7d64dbd 357\r
358 PicoDrawSetOutFormat(PDF_RGB555, 0);\r
c7eb229a 359}\r
360\r
d4d62665 361void plat_video_loop_prepare(void)\r
c7eb229a 362{\r
c7eb229a 363 // make sure there is no junk left behind the layer\r
d4d62665 364 memset(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2);\r
c7eb229a 365 g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
366\r
367 // emu_video_mode_change will call pnd_setup_layer()\r
d4d62665 368}\r
c7eb229a 369\r
d4d62665 370void pemu_loop_prep(void)\r
371{\r
c7eb229a 372 // dirty buffers better go now than during gameplay\r
373 sync();\r
374 sleep(0);\r
c7eb229a 375}\r
376\r
377void pemu_loop_end(void)\r
378{\r
c7eb229a 379 /* do one more frame for menu bg */\r
45285368 380 pemu_forced_frame(0, 1);\r
c7eb229a 381\r
382 pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
c7eb229a 383}\r
384\r
385void plat_wait_till_us(unsigned int us_to)\r
386{\r
387 unsigned int now;\r
388 signed int diff;\r
389\r
390 now = plat_get_ticks_us();\r
391\r
392 // XXX: need to check NOHZ\r
393 diff = (signed int)(us_to - now);\r
394 if (diff > 10000) {\r
395 //printf("sleep %d\n", us_to - now);\r
396 usleep(diff * 15 / 16);\r
397 now = plat_get_ticks_us();\r
398 //printf(" wake %d\n", (signed)(us_to - now));\r
399 }\r
400/*\r
401 while ((signed int)(us_to - now) > 512) {\r
402 spend_cycles(1024);\r
403 now = plat_get_ticks_us();\r
404 }\r
405*/\r
406}\r
407\r
c7eb229a 408void plat_early_init(void)\r
409{\r
410}\r
411\r
412void plat_init(void)\r
413{\r
414 const char *main_fb_name, *layer_fb_name;\r
415 int fd, ret, w, h;\r
416\r
417 main_fb_name = getenv("FBDEV_MAIN");\r
418 if (main_fb_name == NULL)\r
419 main_fb_name = "/dev/fb0";\r
420\r
421 layer_fb_name = getenv("FBDEV_LAYER");\r
422 if (layer_fb_name == NULL)\r
423 layer_fb_name = "/dev/fb1";\r
424\r
425 // must set the layer up first to be able to use it\r
426 fd = open(layer_fb_name, O_RDWR);\r
427 if (fd == -1) {\r
428 fprintf(stderr, "%s: ", layer_fb_name);\r
429 perror("open");\r
430 exit(1);\r
431 }\r
432\r
433 ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
434 close(fd);\r
435 if (ret != 0) {\r
436 fprintf(stderr, "failed to set up layer, exiting.\n");\r
437 exit(1);\r
438 }\r
439\r
d4d62665 440 xenv_init(NULL, "PicoDrive " VERSION);\r
c7eb229a 441\r
442 w = h = 0;\r
21ebcfd3 443 main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);\r
c7eb229a 444 if (main_fb == NULL) {\r
445 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);\r
446 exit(1);\r
447 }\r
448\r
d40231e2 449 g_menuscreen_w = w;\r
450 g_menuscreen_h = h;\r
c7eb229a 451 g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
452\r
453 w = 320; h = 240;\r
b011c2af 454 layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 4);\r
c7eb229a 455 if (layer_fb == NULL) {\r
456 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);\r
457 goto fail0;\r
458 }\r
459\r
460 if (w != g_screen_width || h != g_screen_height) {\r
461 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);\r
462 goto fail1;\r
463 }\r
464 g_screen_ptr = vout_fbdev_flip(layer_fb);\r
465\r
d40231e2 466 temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);\r
467 if (temp_frame == NULL) {\r
468 fprintf(stderr, "OOM\n");\r
469 goto fail1;\r
470 }\r
c7eb229a 471 g_menubg_ptr = temp_frame;\r
472 g_menubg_src_ptr = temp_frame;\r
473\r
c7eb229a 474 pnd_menu_init();\r
45285368 475\r
d4d62665 476 in_evdev_init(in_evdev_defbinds);\r
477 in_probe();\r
478 plat_target_setup_input();\r
479\r
480 sndout_oss_frag_frames = 2;\r
481\r
c7eb229a 482 return;\r
483\r
484fail1:\r
485 vout_fbdev_finish(layer_fb);\r
486fail0:\r
487 vout_fbdev_finish(main_fb);\r
488 exit(1);\r
489}\r
490\r
491void plat_finish(void)\r
492{\r
c7eb229a 493 vout_fbdev_finish(main_fb);\r
10ef62e3 494 xenv_finish();\r
c7eb229a 495\r
496 printf("all done\n");\r
497}\r
498\r