d2f29611 |
1 | // (c) Copyright 2006-2009 notaz, All rights reserved.\r |
2 | // Free for non-commercial use.\r |
3 | \r |
4 | // For commercial use, separate licencing terms must be obtained.\r |
5 | \r |
6 | #include <stdio.h>\r |
7 | #include <unistd.h>\r |
8 | \r |
9 | #include "../common/emu.h"\r |
10 | #include "../common/menu.h"\r |
11 | #include "../common/plat.h"\r |
12 | #include "../common/arm_utils.h"\r |
13 | #include "../linux/sndout_oss.h"\r |
14 | #include "version.h"\r |
15 | \r |
16 | #include <pico/pico_int.h>\r |
17 | \r |
18 | \r |
19 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r |
20 | unsigned char temp_frame[320 * 240 * 2];\r |
21 | unsigned char *PicoDraw2FB = temp_frame;\r |
22 | static int osd_fps_x;\r |
23 | char cpu_clk_name[] = "unused";\r |
24 | \r |
25 | extern void update_screen(void);\r |
26 | \r |
27 | \r |
28 | void pemu_prep_defconfig(void)\r |
29 | {\r |
30 | // XXX: move elsewhere\r |
31 | g_menubg_ptr = temp_frame;\r |
32 | }\r |
33 | \r |
34 | void pemu_validate_config(void)\r |
35 | {\r |
36 | extern int PicoOpt;\r |
37 | // PicoOpt &= ~POPT_EXT_FM;\r |
38 | PicoOpt &= ~POPT_EN_SVP_DRC;\r |
39 | }\r |
40 | \r |
41 | // FIXME: dupes from GP2X, need cleanup\r |
42 | static void (*osd_text)(int x, int y, const char *text);\r |
43 | \r |
44 | static void osd_text8(int x, int y, const char *text)\r |
45 | {\r |
46 | int len = strlen(text)*8;\r |
47 | int *p, i, h, offs;\r |
48 | \r |
49 | len = (len+3) >> 2;\r |
50 | for (h = 0; h < 8; h++) {\r |
51 | offs = (x + g_screen_width * (y+h)) & ~3;\r |
52 | p = (int *) ((char *)g_screen_ptr + offs);\r |
53 | for (i = len; i; i--, p++)\r |
54 | *p = 0xe0e0e0e0;\r |
55 | }\r |
56 | emu_text_out8(x, y, text);\r |
57 | }\r |
58 | \r |
59 | static void osd_text16(int x, int y, const char *text)\r |
60 | {\r |
61 | int len = strlen(text)*8;\r |
62 | int *p, i, h, offs;\r |
63 | \r |
64 | len = (len+1) >> 1;\r |
65 | for (h = 0; h < 8; h++) {\r |
66 | offs = (x + g_screen_width * (y+h)) & ~1;\r |
67 | p = (int *) ((short *)g_screen_ptr + offs);\r |
68 | for (i = len; i; i--, p++)\r |
69 | *p = (*p >> 2) & 0x39e7;\r |
70 | }\r |
71 | emu_text_out16(x, y, text);\r |
72 | }\r |
73 | \r |
74 | static void draw_cd_leds(void)\r |
75 | {\r |
76 | int led_reg, pitch, scr_offs, led_offs;\r |
77 | led_reg = Pico_mcd->s68k_regs[0];\r |
78 | \r |
79 | pitch = 320;\r |
80 | led_offs = 4;\r |
81 | scr_offs = pitch * 2 + 4;\r |
82 | \r |
83 | if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r |
84 | #define p(x) px[(x) >> 2]\r |
85 | // 8-bit modes\r |
86 | unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);\r |
87 | unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r |
88 | unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r |
89 | p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r |
90 | p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r |
91 | #undef p\r |
92 | } else {\r |
93 | #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r |
94 | // 16-bit modes\r |
95 | unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);\r |
96 | unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;\r |
97 | unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;\r |
98 | p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r |
99 | p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r |
100 | #undef p\r |
101 | }\r |
102 | }\r |
103 | \r |
104 | static int EmuScanBegin16(unsigned int num)\r |
105 | {\r |
106 | DrawLineDest = (unsigned short *)g_screen_ptr + num * g_screen_width;\r |
107 | \r |
108 | return 0;\r |
109 | }\r |
110 | \r |
111 | void pemu_update_display(const char *fps, const char *notice)\r |
112 | {\r |
113 | if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r |
114 | if (notice)\r |
115 | osd_text(4, g_screen_height - 8, notice);\r |
116 | if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r |
117 | osd_text(osd_fps_x, g_screen_height - 8, fps);\r |
118 | }\r |
119 | if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r |
120 | draw_cd_leds();\r |
121 | \r |
122 | update_screen();\r |
123 | }\r |
124 | \r |
125 | void plat_video_toggle_renderer(int is_next, int force_16bpp, int is_menu)\r |
126 | {\r |
127 | // this will auto-select SMS/32X renderers\r |
128 | PicoDrawSetColorFormat(1);\r |
129 | }\r |
130 | \r |
131 | void plat_video_menu_enter(int is_rom_loaded)\r |
132 | {\r |
133 | }\r |
134 | \r |
135 | void plat_video_menu_begin(void)\r |
136 | {\r |
137 | memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);\r |
138 | }\r |
139 | \r |
140 | void plat_video_menu_end(void)\r |
141 | {\r |
142 | update_screen();\r |
143 | }\r |
144 | \r |
145 | void plat_status_msg_clear(void)\r |
146 | {\r |
147 | unsigned short *d = (unsigned short *)g_screen_ptr + g_screen_width * g_screen_height;\r |
148 | int l = g_screen_width * 8;\r |
149 | memset32((int *)(d - l), 0, l * 2 / 4);\r |
150 | }\r |
151 | \r |
152 | void plat_status_msg_busy_next(const char *msg)\r |
153 | {\r |
154 | plat_status_msg_clear();\r |
155 | pemu_update_display("", msg);\r |
156 | emu_status_msg("");\r |
157 | reset_timing = 1;\r |
158 | }\r |
159 | \r |
160 | void plat_status_msg_busy_first(const char *msg)\r |
161 | {\r |
162 | // memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
163 | plat_status_msg_busy_next(msg);\r |
164 | }\r |
165 | \r |
166 | void plat_update_volume(int has_changed, int is_up)\r |
167 | {\r |
168 | }\r |
169 | \r |
170 | void pemu_forced_frame(int opts)\r |
171 | {\r |
172 | int po_old = PicoOpt;\r |
173 | int eo_old = currentConfig.EmuOpt;\r |
174 | \r |
175 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
176 | PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r |
177 | currentConfig.EmuOpt |= EOPT_16BPP;\r |
178 | \r |
179 | PicoDrawSetColorFormat(1);\r |
180 | PicoScanBegin = EmuScanBegin16;\r |
181 | \r |
182 | Pico.m.dirtyPal = 1;\r |
183 | PicoFrameDrawOnly();\r |
184 | \r |
185 | PicoOpt = po_old;\r |
186 | currentConfig.EmuOpt = eo_old;\r |
187 | }\r |
188 | \r |
189 | static void updateSound(int len)\r |
190 | {\r |
191 | len <<= 1;\r |
192 | if (PicoOpt & POPT_EN_STEREO)\r |
193 | len <<= 1;\r |
194 | \r |
195 | if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r |
196 | return;\r |
197 | \r |
198 | /* avoid writing audio when lagging behind to prevent audio lag */\r |
199 | if (PicoSkipFrame != 2)\r |
200 | sndout_oss_write(PsndOut, len);\r |
201 | }\r |
202 | \r |
203 | void pemu_sound_start(void)\r |
204 | {\r |
205 | static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r |
206 | int target_fps = Pico.m.pal ? 50 : 60;\r |
207 | \r |
208 | PsndOut = NULL;\r |
209 | \r |
210 | if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r |
211 | {\r |
212 | int snd_excess_add;\r |
213 | if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r |
214 | PsndRerate(Pico.m.frame_count ? 1 : 0);\r |
215 | \r |
216 | snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r |
217 | printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r |
218 | PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r |
219 | sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r |
220 | sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r |
221 | PicoWriteSound = updateSound;\r |
222 | plat_update_volume(0, 0);\r |
223 | memset(sndBuffer, 0, sizeof(sndBuffer));\r |
224 | PsndOut = sndBuffer;\r |
225 | PsndRate_old = PsndRate;\r |
226 | PicoOpt_old = PicoOpt;\r |
227 | pal_old = Pico.m.pal;\r |
228 | }\r |
229 | }\r |
230 | \r |
231 | void pemu_sound_stop(void)\r |
232 | {\r |
233 | }\r |
234 | \r |
235 | void pemu_sound_wait(void)\r |
236 | {\r |
237 | // don't need to do anything, writes will block by themselves\r |
238 | }\r |
239 | \r |
240 | void plat_debug_cat(char *str)\r |
241 | {\r |
242 | }\r |
243 | \r |
244 | void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r |
245 | {\r |
246 | osd_fps_x = 260;\r |
247 | \r |
248 | // clear whole screen in all buffers\r |
249 | memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
250 | }\r |
251 | \r |
252 | void pemu_loop_prep(void)\r |
253 | {\r |
254 | PicoDrawSetColorFormat(1);\r |
255 | PicoScanBegin = EmuScanBegin16;\r |
256 | osd_text = osd_text16;\r |
257 | \r |
258 | pemu_sound_start();\r |
259 | }\r |
260 | \r |
261 | void pemu_loop_end(void)\r |
262 | {\r |
263 | int po_old = PicoOpt;\r |
264 | int eo_old = currentConfig.EmuOpt;\r |
265 | \r |
266 | pemu_sound_stop();\r |
267 | memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
268 | \r |
269 | /* do one more frame for menu bg */\r |
270 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
271 | PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r |
272 | currentConfig.EmuOpt |= EOPT_16BPP;\r |
273 | \r |
274 | PicoDrawSetColorFormat(1);\r |
275 | Pico.m.dirtyPal = 1;\r |
276 | PicoFrame();\r |
277 | \r |
278 | PicoOpt = po_old;\r |
279 | currentConfig.EmuOpt = eo_old;\r |
280 | }\r |
281 | \r |
282 | void plat_wait_till_us(unsigned int us_to)\r |
283 | {\r |
284 | unsigned int now;\r |
285 | \r |
286 | now = plat_get_ticks_us();\r |
287 | \r |
288 | while ((signed int)(us_to - now) > 512)\r |
289 | {\r |
290 | usleep(1024);\r |
291 | now = plat_get_ticks_us();\r |
292 | }\r |
293 | }\r |
294 | \r |
295 | void plat_video_wait_vsync(void)\r |
296 | {\r |
297 | }\r |
298 | \r |
299 | const char *plat_get_credits(void)\r |
300 | {\r |
301 | return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r |
302 | "Credits:\n"\r |
303 | "fDave: Cyclone 68000 core,\n"\r |
304 | " base code of PicoDrive\n"\r |
305 | "Reesy & FluBBa: DrZ80 core\n"\r |
306 | "MAME devs: YM2612 and SN76496 cores\n"\r |
307 | "rlyeh and others: minimal SDK\n"\r |
308 | "Squidge: mmuhack\n"\r |
309 | "Dzz: ARM940 sample\n"\r |
310 | "GnoStiC / Puck2099: USB joy code\n"\r |
311 | "craigix: GP2X hardware\n"\r |
312 | "ketchupgun: skin design\n"\r |
313 | "\n"\r |
314 | "special thanks (for docs, ideas):\n"\r |
315 | " Charles MacDonald, Haze,\n"\r |
316 | " Stephane Dallongeville,\n"\r |
317 | " Lordus, Exophase, Rokas,\n"\r |
318 | " Nemesis, Tasco Deluxe";\r |
319 | }\r |