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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 |
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20 | char cpu_clk_name[] = "unused";\r |
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21 | const char *renderer_names[] = { "16bit accurate", " 8bit accurate", " 8bit fast", NULL };\r |
22 | const char *renderer_names32x[] = { "accurate", "faster", "fastest", NULL };\r |
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23 | enum renderer_types { RT_16BIT, RT_8BIT_ACC, RT_8BIT_FAST, RT_COUNT };\r |
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24 | \r |
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25 | \r |
26 | void pemu_prep_defconfig(void)\r |
27 | {\r |
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28 | }\r |
29 | \r |
30 | void pemu_validate_config(void)\r |
31 | {\r |
32 | extern int PicoOpt;\r |
33 | // PicoOpt &= ~POPT_EXT_FM;\r |
34 | PicoOpt &= ~POPT_EN_SVP_DRC;\r |
35 | }\r |
36 | \r |
37 | // FIXME: dupes from GP2X, need cleanup\r |
38 | static void (*osd_text)(int x, int y, const char *text);\r |
39 | \r |
d08e7326 |
40 | /*\r |
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41 | static void osd_text8(int x, int y, const char *text)\r |
42 | {\r |
43 | int len = strlen(text)*8;\r |
44 | int *p, i, h, offs;\r |
45 | \r |
46 | len = (len+3) >> 2;\r |
47 | for (h = 0; h < 8; h++) {\r |
48 | offs = (x + g_screen_width * (y+h)) & ~3;\r |
49 | p = (int *) ((char *)g_screen_ptr + offs);\r |
50 | for (i = len; i; i--, p++)\r |
51 | *p = 0xe0e0e0e0;\r |
52 | }\r |
53 | emu_text_out8(x, y, text);\r |
54 | }\r |
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55 | */\r |
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56 | \r |
57 | static void osd_text16(int x, int y, const char *text)\r |
58 | {\r |
59 | int len = strlen(text)*8;\r |
60 | int *p, i, h, offs;\r |
61 | \r |
62 | len = (len+1) >> 1;\r |
63 | for (h = 0; h < 8; h++) {\r |
64 | offs = (x + g_screen_width * (y+h)) & ~1;\r |
65 | p = (int *) ((short *)g_screen_ptr + offs);\r |
66 | for (i = len; i; i--, p++)\r |
67 | *p = (*p >> 2) & 0x39e7;\r |
68 | }\r |
69 | emu_text_out16(x, y, text);\r |
70 | }\r |
71 | \r |
72 | static void draw_cd_leds(void)\r |
73 | {\r |
74 | int led_reg, pitch, scr_offs, led_offs;\r |
75 | led_reg = Pico_mcd->s68k_regs[0];\r |
76 | \r |
77 | pitch = 320;\r |
78 | led_offs = 4;\r |
79 | scr_offs = pitch * 2 + 4;\r |
80 | \r |
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81 | if (currentConfig.renderer != RT_16BIT) {\r |
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82 | #define p(x) px[(x) >> 2]\r |
83 | // 8-bit modes\r |
84 | unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);\r |
85 | unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r |
86 | unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r |
87 | p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r |
88 | p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r |
89 | #undef p\r |
90 | } else {\r |
91 | #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]\r |
92 | // 16-bit modes\r |
93 | unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);\r |
94 | unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;\r |
95 | unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;\r |
96 | p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;\r |
97 | p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;\r |
98 | #undef p\r |
99 | }\r |
100 | }\r |
101 | \r |
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102 | void pemu_finalize_frame(const char *fps, const char *notice)\r |
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103 | {\r |
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104 | if (currentConfig.renderer != RT_16BIT && !(PicoAHW & PAHW_32X)) {\r |
105 | unsigned short *pd = (unsigned short *)g_screen_ptr + 8 * g_screen_width;\r |
106 | unsigned char *ps = PicoDraw2FB + 328*8 + 8;\r |
107 | unsigned short *pal = HighPal;\r |
108 | int i, x;\r |
109 | if (Pico.m.dirtyPal)\r |
110 | PicoDrawUpdateHighPal();\r |
111 | for (i = 0; i < 224; i++, ps += 8)\r |
112 | for (x = 0; x < 320; x++)\r |
113 | *pd++ = pal[*ps++];\r |
114 | }\r |
115 | \r |
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116 | if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r |
117 | if (notice)\r |
118 | osd_text(4, g_screen_height - 8, notice);\r |
119 | if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r |
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120 | osd_text(g_screen_width - 60, g_screen_height - 8, fps);\r |
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121 | }\r |
122 | if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r |
123 | draw_cd_leds();\r |
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124 | }\r |
125 | \r |
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126 | static void apply_renderer(void)\r |
127 | {\r |
128 | PicoScanBegin = NULL;\r |
129 | PicoScanEnd = NULL;\r |
130 | \r |
131 | switch (currentConfig.renderer) {\r |
132 | case RT_16BIT:\r |
133 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
134 | PicoDrawSetOutFormat(PDF_RGB555, 0);\r |
135 | PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r |
136 | break;\r |
137 | case RT_8BIT_ACC:\r |
138 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
139 | PicoDrawSetOutFormat(PDF_8BIT, 0);\r |
140 | PicoDrawSetOutBuf(PicoDraw2FB + 8, 328);\r |
141 | break;\r |
142 | case RT_8BIT_FAST:\r |
143 | PicoOpt |= POPT_ALT_RENDERER;\r |
144 | PicoDrawSetOutFormat(PDF_NONE, 0);\r |
145 | break;\r |
146 | }\r |
147 | \r |
148 | if (PicoAHW & PAHW_32X) {\r |
149 | int only_32x = 0;\r |
150 | if (currentConfig.renderer == RT_16BIT)\r |
151 | only_32x = 1;\r |
152 | else\r |
153 | PicoDrawSetOutFormat(PDF_NONE, 0);\r |
154 | PicoDraw32xSetFrameMode(1, only_32x);\r |
155 | PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r |
156 | }\r |
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157 | //PicoDraw32xSetFrameMode(0, 0);\r |
158 | //PicoDrawSetOutFormat(PDF_RGB555, 1);\r |
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159 | }\r |
160 | \r |
161 | void plat_video_toggle_renderer(int change, int is_menu)\r |
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162 | {\r |
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163 | currentConfig.renderer += change;\r |
164 | if (currentConfig.renderer >= RT_COUNT)\r |
165 | currentConfig.renderer = 0;\r |
166 | else if (currentConfig.renderer < 0)\r |
167 | currentConfig.renderer = RT_COUNT - 1;\r |
168 | \r |
169 | if (!is_menu)\r |
170 | apply_renderer();\r |
171 | \r |
172 | emu_status_msg(renderer_names[currentConfig.renderer]);\r |
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173 | }\r |
174 | \r |
175 | void plat_video_menu_enter(int is_rom_loaded)\r |
176 | {\r |
177 | }\r |
178 | \r |
179 | void plat_video_menu_begin(void)\r |
180 | {\r |
181 | memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);\r |
182 | }\r |
183 | \r |
184 | void plat_video_menu_end(void)\r |
185 | {\r |
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186 | plat_video_flip();\r |
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187 | }\r |
188 | \r |
189 | void plat_status_msg_clear(void)\r |
190 | {\r |
191 | unsigned short *d = (unsigned short *)g_screen_ptr + g_screen_width * g_screen_height;\r |
192 | int l = g_screen_width * 8;\r |
193 | memset32((int *)(d - l), 0, l * 2 / 4);\r |
194 | }\r |
195 | \r |
196 | void plat_status_msg_busy_next(const char *msg)\r |
197 | {\r |
198 | plat_status_msg_clear();\r |
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199 | pemu_finalize_frame("", msg);\r |
200 | plat_video_flip();\r |
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201 | emu_status_msg("");\r |
202 | reset_timing = 1;\r |
203 | }\r |
204 | \r |
205 | void plat_status_msg_busy_first(const char *msg)\r |
206 | {\r |
207 | // memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
208 | plat_status_msg_busy_next(msg);\r |
209 | }\r |
210 | \r |
211 | void plat_update_volume(int has_changed, int is_up)\r |
212 | {\r |
213 | }\r |
214 | \r |
215 | void pemu_forced_frame(int opts)\r |
216 | {\r |
217 | int po_old = PicoOpt;\r |
218 | int eo_old = currentConfig.EmuOpt;\r |
219 | \r |
220 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
221 | PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r |
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222 | \r |
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223 | PicoDrawSetOutFormat(PDF_RGB555, 1);\r |
224 | PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r |
225 | PicoDraw32xSetFrameMode(0, 0);\r |
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226 | \r |
227 | Pico.m.dirtyPal = 1;\r |
228 | PicoFrameDrawOnly();\r |
229 | \r |
230 | PicoOpt = po_old;\r |
231 | currentConfig.EmuOpt = eo_old;\r |
232 | }\r |
233 | \r |
234 | static void updateSound(int len)\r |
235 | {\r |
236 | len <<= 1;\r |
237 | if (PicoOpt & POPT_EN_STEREO)\r |
238 | len <<= 1;\r |
239 | \r |
240 | if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r |
241 | return;\r |
242 | \r |
243 | /* avoid writing audio when lagging behind to prevent audio lag */\r |
244 | if (PicoSkipFrame != 2)\r |
245 | sndout_oss_write(PsndOut, len);\r |
246 | }\r |
247 | \r |
248 | void pemu_sound_start(void)\r |
249 | {\r |
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250 | int target_fps = Pico.m.pal ? 50 : 60;\r |
251 | \r |
252 | PsndOut = NULL;\r |
253 | \r |
254 | if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r |
255 | {\r |
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256 | int snd_excess_add, frame_samples;\r |
257 | int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r |
258 | \r |
259 | PsndRerate(Pico.m.frame_count ? 1 : 0);\r |
260 | \r |
261 | frame_samples = PsndLen;\r |
262 | snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r |
263 | if (snd_excess_add != 0)\r |
264 | frame_samples++;\r |
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265 | \r |
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266 | printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r |
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267 | PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r |
268 | sndout_oss_start(PsndRate, frame_samples, is_stereo);\r |
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269 | sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r |
270 | PicoWriteSound = updateSound;\r |
271 | plat_update_volume(0, 0);\r |
272 | memset(sndBuffer, 0, sizeof(sndBuffer));\r |
273 | PsndOut = sndBuffer;\r |
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274 | }\r |
275 | }\r |
276 | \r |
277 | void pemu_sound_stop(void)\r |
278 | {\r |
279 | }\r |
280 | \r |
281 | void pemu_sound_wait(void)\r |
282 | {\r |
283 | // don't need to do anything, writes will block by themselves\r |
284 | }\r |
285 | \r |
286 | void plat_debug_cat(char *str)\r |
287 | {\r |
288 | }\r |
289 | \r |
290 | void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r |
291 | {\r |
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292 | // clear whole screen in all buffers\r |
293 | memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
294 | }\r |
295 | \r |
296 | void pemu_loop_prep(void)\r |
297 | {\r |
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298 | apply_renderer();\r |
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299 | osd_text = osd_text16;\r |
300 | \r |
301 | pemu_sound_start();\r |
302 | }\r |
303 | \r |
304 | void pemu_loop_end(void)\r |
305 | {\r |
306 | int po_old = PicoOpt;\r |
307 | int eo_old = currentConfig.EmuOpt;\r |
308 | \r |
309 | pemu_sound_stop();\r |
310 | memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r |
311 | \r |
312 | /* do one more frame for menu bg */\r |
313 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
314 | PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r |
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315 | \r |
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316 | PicoDrawSetOutFormat(PDF_RGB555, 1);\r |
317 | PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r |
318 | PicoDraw32xSetFrameMode(0, 0);\r |
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319 | Pico.m.dirtyPal = 1;\r |
320 | PicoFrame();\r |
321 | \r |
322 | PicoOpt = po_old;\r |
323 | currentConfig.EmuOpt = eo_old;\r |
324 | }\r |
325 | \r |
326 | void plat_wait_till_us(unsigned int us_to)\r |
327 | {\r |
328 | unsigned int now;\r |
329 | \r |
330 | now = plat_get_ticks_us();\r |
331 | \r |
332 | while ((signed int)(us_to - now) > 512)\r |
333 | {\r |
334 | usleep(1024);\r |
335 | now = plat_get_ticks_us();\r |
336 | }\r |
337 | }\r |
338 | \r |
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339 | const char *plat_get_credits(void)\r |
340 | {\r |
341 | return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r |
342 | "Credits:\n"\r |
343 | "fDave: Cyclone 68000 core,\n"\r |
344 | " base code of PicoDrive\n"\r |
345 | "Reesy & FluBBa: DrZ80 core\n"\r |
346 | "MAME devs: YM2612 and SN76496 cores\n"\r |
347 | "rlyeh and others: minimal SDK\n"\r |
348 | "Squidge: mmuhack\n"\r |
349 | "Dzz: ARM940 sample\n"\r |
350 | "GnoStiC / Puck2099: USB joy code\n"\r |
351 | "craigix: GP2X hardware\n"\r |
352 | "ketchupgun: skin design\n"\r |
353 | "\n"\r |
354 | "special thanks (for docs, ideas):\n"\r |
355 | " Charles MacDonald, Haze,\n"\r |
356 | " Stephane Dallongeville,\n"\r |
357 | " Lordus, Exophase, Rokas,\n"\r |
358 | " Nemesis, Tasco Deluxe";\r |
359 | }\r |