| 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 <stdlib.h>\r |
| 8 | #include <sys/time.h>\r |
| 9 | #include <stdarg.h>\r |
| 10 | \r |
| 11 | #include "plat_gp2x.h"\r |
| 12 | #include "soc.h"\r |
| 13 | #include "../common/plat.h"\r |
| 14 | #include "../common/menu.h"\r |
| 15 | #include "../common/arm_utils.h"\r |
| 16 | #include "../common/fonts.h"\r |
| 17 | #include "../common/emu.h"\r |
| 18 | #include "../common/config.h"\r |
| 19 | #include "../linux/sndout_oss.h"\r |
| 20 | #include "version.h"\r |
| 21 | \r |
| 22 | #include <pico/pico_int.h>\r |
| 23 | #include <pico/patch.h>\r |
| 24 | #include <pico/sound/mix.h>\r |
| 25 | #include <zlib/zlib.h>\r |
| 26 | \r |
| 27 | //#define PFRAMES\r |
| 28 | \r |
| 29 | #ifdef BENCHMARK\r |
| 30 | #define OSD_FPS_X 220\r |
| 31 | #else\r |
| 32 | #define OSD_FPS_X 260\r |
| 33 | #endif\r |
| 34 | \r |
| 35 | \r |
| 36 | extern int crashed_940;\r |
| 37 | \r |
| 38 | static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r |
| 39 | static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r |
| 40 | static int osd_fps_x;\r |
| 41 | static int gp2x_old_gamma = 100;\r |
| 42 | static char noticeMsg[40];\r |
| 43 | static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];\r |
| 44 | unsigned char *PicoDraw2FB = PicoDraw2FB_;\r |
| 45 | \r |
| 46 | \r |
| 47 | void plat_status_msg(const char *format, ...)\r |
| 48 | {\r |
| 49 | va_list vl;\r |
| 50 | \r |
| 51 | va_start(vl, format);\r |
| 52 | vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r |
| 53 | va_end(vl);\r |
| 54 | \r |
| 55 | gettimeofday(¬iceMsgTime, 0);\r |
| 56 | }\r |
| 57 | \r |
| 58 | int plat_get_root_dir(char *dst, int len)\r |
| 59 | {\r |
| 60 | extern char **g_argv;\r |
| 61 | int j;\r |
| 62 | \r |
| 63 | strncpy(dst, g_argv[0], len);\r |
| 64 | len -= 32; // reserve\r |
| 65 | if (len < 0) len = 0;\r |
| 66 | dst[len] = 0;\r |
| 67 | for (j = strlen(dst); j > 0; j--)\r |
| 68 | if (dst[j] == '/') { dst[j+1] = 0; break; }\r |
| 69 | \r |
| 70 | return j + 1;\r |
| 71 | }\r |
| 72 | \r |
| 73 | \r |
| 74 | static void scaling_update(void)\r |
| 75 | {\r |
| 76 | PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);\r |
| 77 | switch (currentConfig.scaling) {\r |
| 78 | default:break;\r |
| 79 | case EOPT_SCALE_HW_H:\r |
| 80 | case EOPT_SCALE_HW_HV:\r |
| 81 | PicoOpt |= POPT_DIS_32C_BORDER;\r |
| 82 | break;\r |
| 83 | case EOPT_SCALE_SW_H:\r |
| 84 | PicoOpt |= POPT_EN_SOFTSCALE;\r |
| 85 | break;\r |
| 86 | }\r |
| 87 | }\r |
| 88 | \r |
| 89 | \r |
| 90 | void pemu_prep_defconfig(void)\r |
| 91 | {\r |
| 92 | gp2x_soc_t soc;\r |
| 93 | \r |
| 94 | memset(&defaultConfig, 0, sizeof(defaultConfig));\r |
| 95 | defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS | 0x600; // | <- confirm_save, cd_leds\r |
| 96 | defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;\r |
| 97 | defaultConfig.s_PsndRate = 44100;\r |
| 98 | defaultConfig.s_PicoRegion = 0; // auto\r |
| 99 | defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r |
| 100 | defaultConfig.s_PicoCDBuffers = 0;\r |
| 101 | defaultConfig.Frameskip = -1; // auto\r |
| 102 | defaultConfig.CPUclock = default_cpu_clock;\r |
| 103 | defaultConfig.volume = 50;\r |
| 104 | defaultConfig.gamma = 100;\r |
| 105 | defaultConfig.scaling = 0;\r |
| 106 | defaultConfig.turbo_rate = 15;\r |
| 107 | \r |
| 108 | soc = soc_detect();\r |
| 109 | if (soc == SOCID_MMSP2)\r |
| 110 | defaultConfig.s_PicoOpt |= POPT_EXT_FM;\r |
| 111 | }\r |
| 112 | \r |
| 113 | static void osd_text(int x, int y, const char *text)\r |
| 114 | {\r |
| 115 | int len = strlen(text)*8;\r |
| 116 | int *p, i, h, offs;\r |
| 117 | \r |
| 118 | if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r |
| 119 | len = (len+3) >> 2;\r |
| 120 | for (h = 0; h < 8; h++) {\r |
| 121 | offs = (x + g_screen_width * (y+h)) & ~3;\r |
| 122 | p = (int *) ((char *)g_screen_ptr + offs);\r |
| 123 | for (i = len; i; i--, p++)\r |
| 124 | *p = 0xe0e0e0e0;\r |
| 125 | }\r |
| 126 | emu_textOut8(x, y, text);\r |
| 127 | } else {\r |
| 128 | len = (len+1) >> 1;\r |
| 129 | for (h = 0; h < 8; h++) {\r |
| 130 | offs = (x + g_screen_width * (y+h)) & ~1;\r |
| 131 | p = (int *) ((short *)g_screen_ptr + offs);\r |
| 132 | for (i = len; i; i--, p++)\r |
| 133 | *p = (*p >> 2) & 0x39e7;\r |
| 134 | }\r |
| 135 | emu_textOut16(x, y, text);\r |
| 136 | }\r |
| 137 | }\r |
| 138 | \r |
| 139 | static void draw_cd_leds(void)\r |
| 140 | {\r |
| 141 | int old_reg;\r |
| 142 | old_reg = Pico_mcd->s68k_regs[0];\r |
| 143 | \r |
| 144 | if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r |
| 145 | // 8-bit modes\r |
| 146 | unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r |
| 147 | unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r |
| 148 | *(unsigned int *)((char *)g_screen_ptr + 320*2+ 4) =\r |
| 149 | *(unsigned int *)((char *)g_screen_ptr + 320*3+ 4) =\r |
| 150 | *(unsigned int *)((char *)g_screen_ptr + 320*4+ 4) = col_g;\r |
| 151 | *(unsigned int *)((char *)g_screen_ptr + 320*2+12) =\r |
| 152 | *(unsigned int *)((char *)g_screen_ptr + 320*3+12) =\r |
| 153 | *(unsigned int *)((char *)g_screen_ptr + 320*4+12) = col_r;\r |
| 154 | } else {\r |
| 155 | // 16-bit modes\r |
| 156 | unsigned int *p = (unsigned int *)((short *)g_screen_ptr + 320*2+4);\r |
| 157 | unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r |
| 158 | unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r |
| 159 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r |
| 160 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r |
| 161 | *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r |
| 162 | }\r |
| 163 | }\r |
| 164 | \r |
| 165 | static void draw_pico_ptr(void)\r |
| 166 | {\r |
| 167 | unsigned short *p = (unsigned short *)g_screen_ptr;\r |
| 168 | \r |
| 169 | // only if pen enabled and for 16bit modes\r |
| 170 | if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r |
| 171 | \r |
| 172 | if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r |
| 173 | p += 32;\r |
| 174 | \r |
| 175 | p += 320 * (pico_pen_y + PICO_PEN_ADJUST_Y);\r |
| 176 | p += pico_pen_x + PICO_PEN_ADJUST_X;\r |
| 177 | p[0] ^= 0xffff;\r |
| 178 | p[319] ^= 0xffff;\r |
| 179 | p[320] ^= 0xffff;\r |
| 180 | p[321] ^= 0xffff;\r |
| 181 | p[640] ^= 0xffff;\r |
| 182 | }\r |
| 183 | \r |
| 184 | static int EmuScanBegin16(unsigned int num)\r |
| 185 | {\r |
| 186 | if (!(Pico.video.reg[1]&8)) num += 8;\r |
| 187 | DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;\r |
| 188 | \r |
| 189 | return 0;\r |
| 190 | }\r |
| 191 | \r |
| 192 | static int EmuScanBegin8(unsigned int num)\r |
| 193 | {\r |
| 194 | if (!(Pico.video.reg[1]&8)) num += 8;\r |
| 195 | DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;\r |
| 196 | \r |
| 197 | return 0;\r |
| 198 | }\r |
| 199 | \r |
| 200 | int localPal[0x100];\r |
| 201 | static void (*vidCpyM2)(void *dest, void *src) = NULL;\r |
| 202 | \r |
| 203 | static void blit(const char *fps, const char *notice)\r |
| 204 | {\r |
| 205 | int emu_opt = currentConfig.EmuOpt;\r |
| 206 | \r |
| 207 | if (PicoOpt & POPT_ALT_RENDERER)\r |
| 208 | {\r |
| 209 | // 8bit fast renderer\r |
| 210 | if (Pico.m.dirtyPal) {\r |
| 211 | Pico.m.dirtyPal = 0;\r |
| 212 | vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r |
| 213 | // feed new palette to our device\r |
| 214 | gp2x_video_setpalette(localPal, 0x40);\r |
| 215 | }\r |
| 216 | // a hack for VR\r |
| 217 | if (PicoRead16Hook == PicoSVPRead16)\r |
| 218 | memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r |
| 219 | // do actual copy\r |
| 220 | vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r |
| 221 | }\r |
| 222 | else if (!(emu_opt & EOPT_16BPP))\r |
| 223 | {\r |
| 224 | // 8bit accurate renderer\r |
| 225 | if (Pico.m.dirtyPal)\r |
| 226 | {\r |
| 227 | int pallen = 0xc0;\r |
| 228 | Pico.m.dirtyPal = 0;\r |
| 229 | if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r |
| 230 | {\r |
| 231 | vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r |
| 232 | vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r |
| 233 | vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r |
| 234 | memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r |
| 235 | pallen = 0x100;\r |
| 236 | }\r |
| 237 | else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r |
| 238 | vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r |
| 239 | vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r |
| 240 | vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r |
| 241 | }\r |
| 242 | else {\r |
| 243 | vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r |
| 244 | memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r |
| 245 | }\r |
| 246 | if (pallen > 0xc0) {\r |
| 247 | localPal[0xc0] = 0x0000c000;\r |
| 248 | localPal[0xd0] = 0x00c00000;\r |
| 249 | localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r |
| 250 | localPal[0xf0] = 0x00ffffff;\r |
| 251 | }\r |
| 252 | gp2x_video_setpalette(localPal, pallen);\r |
| 253 | }\r |
| 254 | }\r |
| 255 | \r |
| 256 | if (notice || (emu_opt & 2)) {\r |
| 257 | int h = 232;\r |
| 258 | if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r |
| 259 | h -= 8;\r |
| 260 | if (notice)\r |
| 261 | osd_text(4, h, notice);\r |
| 262 | if (emu_opt & 2)\r |
| 263 | osd_text(osd_fps_x, h, fps);\r |
| 264 | }\r |
| 265 | if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r |
| 266 | draw_cd_leds();\r |
| 267 | if (PicoAHW & PAHW_PICO)\r |
| 268 | draw_pico_ptr();\r |
| 269 | \r |
| 270 | gp2x_video_flip();\r |
| 271 | \r |
| 272 | if (!(PicoOpt & POPT_ALT_RENDERER)) {\r |
| 273 | if (!(Pico.video.reg[1]&8)) {\r |
| 274 | if (currentConfig.EmuOpt & EOPT_16BPP)\r |
| 275 | DrawLineDest = (unsigned short *) g_screen_ptr + 320*8;\r |
| 276 | else\r |
| 277 | DrawLineDest = (unsigned char *) g_screen_ptr + 320*8;\r |
| 278 | } else {\r |
| 279 | DrawLineDest = g_screen_ptr;\r |
| 280 | }\r |
| 281 | }\r |
| 282 | }\r |
| 283 | \r |
| 284 | // clears whole screen or just the notice area (in all buffers)\r |
| 285 | static void clearArea(int full)\r |
| 286 | {\r |
| 287 | if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r |
| 288 | // 8-bit renderers\r |
| 289 | if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r |
| 290 | else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r |
| 291 | } else {\r |
| 292 | // 16bit accurate renderer\r |
| 293 | if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r |
| 294 | else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r |
| 295 | }\r |
| 296 | }\r |
| 297 | \r |
| 298 | void plat_status_msg_busy_next(const char *msg)\r |
| 299 | {\r |
| 300 | clearArea(0);\r |
| 301 | blit("", msg);\r |
| 302 | \r |
| 303 | /* assumption: msg_busy_next gets called only when\r |
| 304 | * something slow is about to happen */\r |
| 305 | reset_timing = 1;\r |
| 306 | }\r |
| 307 | \r |
| 308 | void plat_status_msg_busy_first(const char *msg)\r |
| 309 | {\r |
| 310 | gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r |
| 311 | plat_status_msg_busy_next(msg);\r |
| 312 | }\r |
| 313 | \r |
| 314 | static void vidResetMode(void)\r |
| 315 | {\r |
| 316 | if (PicoOpt & POPT_ALT_RENDERER) {\r |
| 317 | gp2x_video_changemode(8);\r |
| 318 | } else if (currentConfig.EmuOpt & EOPT_16BPP) {\r |
| 319 | gp2x_video_changemode(16);\r |
| 320 | PicoDrawSetColorFormat(1);\r |
| 321 | PicoScanBegin = EmuScanBegin16;\r |
| 322 | } else {\r |
| 323 | gp2x_video_changemode(8);\r |
| 324 | PicoDrawSetColorFormat(2);\r |
| 325 | PicoScanBegin = EmuScanBegin8;\r |
| 326 | }\r |
| 327 | if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {\r |
| 328 | // setup pal for 8-bit modes\r |
| 329 | localPal[0xc0] = 0x0000c000; // MCD LEDs\r |
| 330 | localPal[0xd0] = 0x00c00000;\r |
| 331 | localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r |
| 332 | localPal[0xf0] = 0x00ffffff;\r |
| 333 | gp2x_video_setpalette(localPal, 0x100);\r |
| 334 | gp2x_memset_all_buffers(0, 0xe0, 320*240);\r |
| 335 | gp2x_video_flip();\r |
| 336 | }\r |
| 337 | Pico.m.dirtyPal = 1;\r |
| 338 | // reset scaling\r |
| 339 | if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))\r |
| 340 | gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r |
| 341 | else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r |
| 342 | }\r |
| 343 | \r |
| 344 | void plat_video_toggle_renderer(void)\r |
| 345 | {\r |
| 346 | if (PicoOpt & POPT_ALT_RENDERER) {\r |
| 347 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
| 348 | currentConfig.EmuOpt |= EOPT_16BPP;\r |
| 349 | } else if (!(currentConfig.EmuOpt & EOPT_16BPP))\r |
| 350 | PicoOpt |= POPT_ALT_RENDERER;\r |
| 351 | else\r |
| 352 | currentConfig.EmuOpt &= ~EOPT_16BPP;\r |
| 353 | \r |
| 354 | vidResetMode();\r |
| 355 | \r |
| 356 | if (PicoOpt & POPT_ALT_RENDERER) {\r |
| 357 | plat_status_msg(" 8bit fast renderer");\r |
| 358 | } else if (currentConfig.EmuOpt & EOPT_16BPP) {\r |
| 359 | plat_status_msg("16bit accurate renderer");\r |
| 360 | } else {\r |
| 361 | plat_status_msg(" 8bit accurate renderer");\r |
| 362 | }\r |
| 363 | }\r |
| 364 | \r |
| 365 | #if 0 // TODO\r |
| 366 | static void RunEventsPico(unsigned int events)\r |
| 367 | {\r |
| 368 | int ret, px, py, lim_x;\r |
| 369 | static int pdown_frames = 0;\r |
| 370 | \r |
| 371 | // for F200\r |
| 372 | ret = gp2x_touchpad_read(&px, &py);\r |
| 373 | if (ret >= 0)\r |
| 374 | {\r |
| 375 | if (ret > 35000)\r |
| 376 | {\r |
| 377 | if (pdown_frames++ > 5)\r |
| 378 | PicoPad[0] |= 0x20;\r |
| 379 | \r |
| 380 | pico_pen_x = px;\r |
| 381 | pico_pen_y = py;\r |
| 382 | if (!(Pico.video.reg[12]&1)) {\r |
| 383 | pico_pen_x -= 32;\r |
| 384 | if (pico_pen_x < 0) pico_pen_x = 0;\r |
| 385 | if (pico_pen_x > 248) pico_pen_x = 248;\r |
| 386 | }\r |
| 387 | if (pico_pen_y > 224) pico_pen_y = 224;\r |
| 388 | }\r |
| 389 | else\r |
| 390 | pdown_frames = 0;\r |
| 391 | \r |
| 392 | //if (ret == 0)\r |
| 393 | // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r |
| 394 | }\r |
| 395 | }\r |
| 396 | #endif\r |
| 397 | \r |
| 398 | void plat_update_volume(int has_changed, int is_up)\r |
| 399 | {\r |
| 400 | static int prev_frame = 0, wait_frames = 0;\r |
| 401 | int vol = currentConfig.volume;\r |
| 402 | int need_low_volume = 0;\r |
| 403 | gp2x_soc_t soc;\r |
| 404 | \r |
| 405 | soc = soc_detect();\r |
| 406 | if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)\r |
| 407 | need_low_volume = 1;\r |
| 408 | \r |
| 409 | if (has_changed)\r |
| 410 | {\r |
| 411 | if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r |
| 412 | wait_frames++;\r |
| 413 | else {\r |
| 414 | if (is_up) {\r |
| 415 | if (vol < 99) vol++;\r |
| 416 | } else {\r |
| 417 | if (vol > 0) vol--;\r |
| 418 | }\r |
| 419 | wait_frames = 0;\r |
| 420 | sndout_oss_setvol(vol, vol);\r |
| 421 | currentConfig.volume = vol;\r |
| 422 | }\r |
| 423 | plat_status_msg("VOL: %02i", vol);\r |
| 424 | prev_frame = Pico.m.frame_count;\r |
| 425 | }\r |
| 426 | \r |
| 427 | if (need_low_volume)\r |
| 428 | return;\r |
| 429 | \r |
| 430 | /* set the right mixer func */\r |
| 431 | if (vol >= 5)\r |
| 432 | PsndMix_32_to_16l = mix_32_to_16l_stereo;\r |
| 433 | else {\r |
| 434 | mix_32_to_16l_level = 5 - vol;\r |
| 435 | PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r |
| 436 | }\r |
| 437 | }\r |
| 438 | \r |
| 439 | \r |
| 440 | static void updateSound(int len)\r |
| 441 | {\r |
| 442 | if (PicoOpt&8) len<<=1;\r |
| 443 | \r |
| 444 | /* avoid writing audio when lagging behind to prevent audio lag */\r |
| 445 | if (PicoSkipFrame != 2)\r |
| 446 | sndout_oss_write(PsndOut, len<<1);\r |
| 447 | }\r |
| 448 | \r |
| 449 | void pemu_sound_start(void)\r |
| 450 | {\r |
| 451 | static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r |
| 452 | int target_fps = Pico.m.pal ? 50 : 60;\r |
| 453 | \r |
| 454 | PsndOut = NULL;\r |
| 455 | \r |
| 456 | // prepare sound stuff\r |
| 457 | if (currentConfig.EmuOpt & 4)\r |
| 458 | {\r |
| 459 | int snd_excess_add;\r |
| 460 | if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r |
| 461 | ((PicoOpt&0x200) && crashed_940)) {\r |
| 462 | PsndRerate(Pico.m.frame_count ? 1 : 0);\r |
| 463 | }\r |
| 464 | snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r |
| 465 | printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r |
| 466 | PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r |
| 467 | sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r |
| 468 | sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r |
| 469 | PicoWriteSound = updateSound;\r |
| 470 | plat_update_volume(0, 0);\r |
| 471 | memset(sndBuffer, 0, sizeof(sndBuffer));\r |
| 472 | PsndOut = sndBuffer;\r |
| 473 | PsndRate_old = PsndRate;\r |
| 474 | PicoOpt_old = PicoOpt;\r |
| 475 | pal_old = Pico.m.pal;\r |
| 476 | }\r |
| 477 | }\r |
| 478 | \r |
| 479 | void pemu_sound_stop(void)\r |
| 480 | {\r |
| 481 | }\r |
| 482 | \r |
| 483 | void pemu_sound_wait(void)\r |
| 484 | {\r |
| 485 | // don't need to do anything, writes will block by themselves\r |
| 486 | }\r |
| 487 | \r |
| 488 | \r |
| 489 | static void SkipFrame(int do_audio)\r |
| 490 | {\r |
| 491 | PicoSkipFrame=do_audio ? 1 : 2;\r |
| 492 | PicoFrame();\r |
| 493 | PicoSkipFrame=0;\r |
| 494 | }\r |
| 495 | \r |
| 496 | \r |
| 497 | void pemu_forced_frame(int opts)\r |
| 498 | {\r |
| 499 | int po_old = PicoOpt;\r |
| 500 | int eo_old = currentConfig.EmuOpt;\r |
| 501 | \r |
| 502 | PicoOpt &= ~POPT_ALT_RENDERER;\r |
| 503 | PicoOpt |= opts|POPT_ACC_SPRITES;\r |
| 504 | currentConfig.EmuOpt |= EOPT_16BPP;\r |
| 505 | \r |
| 506 | PicoDrawSetColorFormat(1);\r |
| 507 | PicoScanBegin = EmuScanBegin16;\r |
| 508 | Pico.m.dirtyPal = 1;\r |
| 509 | PicoFrameDrawOnly();\r |
| 510 | \r |
| 511 | /*\r |
| 512 | if (!(Pico.video.reg[12]&1)) {\r |
| 513 | vidCpyM2 = vidCpyM2_32col;\r |
| 514 | clearArea(1);\r |
| 515 | } else vidCpyM2 = vidCpyM2_40col;\r |
| 516 | \r |
| 517 | vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r |
| 518 | vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r |
| 519 | gp2x_video_setpalette(localPal, 0x40);\r |
| 520 | */\r |
| 521 | PicoOpt = po_old;\r |
| 522 | currentConfig.EmuOpt = eo_old;\r |
| 523 | }\r |
| 524 | \r |
| 525 | void plat_debug_cat(char *str)\r |
| 526 | {\r |
| 527 | }\r |
| 528 | \r |
| 529 | static void simpleWait(int thissec, int lim_time)\r |
| 530 | {\r |
| 531 | struct timeval tval;\r |
| 532 | \r |
| 533 | spend_cycles(1024);\r |
| 534 | gettimeofday(&tval, 0);\r |
| 535 | if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r |
| 536 | \r |
| 537 | while (tval.tv_usec < lim_time)\r |
| 538 | {\r |
| 539 | spend_cycles(1024);\r |
| 540 | gettimeofday(&tval, 0);\r |
| 541 | if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r |
| 542 | }\r |
| 543 | }\r |
| 544 | \r |
| 545 | \r |
| 546 | #if 0\r |
| 547 | static void tga_dump(void)\r |
| 548 | {\r |
| 549 | #define BYTE unsigned char\r |
| 550 | #define WORD unsigned short\r |
| 551 | struct\r |
| 552 | {\r |
| 553 | BYTE IDLength; /* 00h Size of Image ID field */\r |
| 554 | BYTE ColorMapType; /* 01h Color map type */\r |
| 555 | BYTE ImageType; /* 02h Image type code */\r |
| 556 | WORD CMapStart; /* 03h Color map origin */\r |
| 557 | WORD CMapLength; /* 05h Color map length */\r |
| 558 | BYTE CMapDepth; /* 07h Depth of color map entries */\r |
| 559 | WORD XOffset; /* 08h X origin of image */\r |
| 560 | WORD YOffset; /* 0Ah Y origin of image */\r |
| 561 | WORD Width; /* 0Ch Width of image */\r |
| 562 | WORD Height; /* 0Eh Height of image */\r |
| 563 | BYTE PixelDepth; /* 10h Image pixel size */\r |
| 564 | BYTE ImageDescriptor; /* 11h Image descriptor byte */\r |
| 565 | } __attribute__((packed)) TGAHEAD;\r |
| 566 | static unsigned short oldscr[320*240];\r |
| 567 | FILE *f; char name[128]; int i;\r |
| 568 | \r |
| 569 | memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r |
| 570 | TGAHEAD.ImageType = 2;\r |
| 571 | TGAHEAD.Width = 320;\r |
| 572 | TGAHEAD.Height = 240;\r |
| 573 | TGAHEAD.PixelDepth = 16;\r |
| 574 | TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r |
| 575 | \r |
| 576 | #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r |
| 577 | \r |
| 578 | for (i = 0; i < 320*240; i++)\r |
| 579 | if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r |
| 580 | if (i < 320*240)\r |
| 581 | {\r |
| 582 | for (i = 0; i < 320*240; i++)\r |
| 583 | oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r |
| 584 | sprintf(name, "%05i.tga", Pico.m.frame_count);\r |
| 585 | f = fopen(name, "wb");\r |
| 586 | if (!f) { printf("!f\n"); exit(1); }\r |
| 587 | fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r |
| 588 | fwrite(oldscr, 1, 320*240*2, f);\r |
| 589 | fclose(f);\r |
| 590 | }\r |
| 591 | }\r |
| 592 | #endif\r |
| 593 | \r |
| 594 | \r |
| 595 | void pemu_loop(void)\r |
| 596 | {\r |
| 597 | static int gp2x_old_clock = -1, EmuOpt_old = 0;\r |
| 598 | char fpsbuff[24]; // fps count c string\r |
| 599 | struct timeval tval; // timing\r |
| 600 | int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r |
| 601 | int frames_done, frames_shown, thissec; // actual frames\r |
| 602 | int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r |
| 603 | char *notice = 0;\r |
| 604 | \r |
| 605 | printf("entered emu_Loop()\n");\r |
| 606 | \r |
| 607 | if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r |
| 608 | if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r |
| 609 | set_ram_timings();\r |
| 610 | else\r |
| 611 | unset_ram_timings();\r |
| 612 | }\r |
| 613 | \r |
| 614 | if (gp2x_old_clock < 0)\r |
| 615 | gp2x_old_clock = default_cpu_clock;\r |
| 616 | if (gp2x_old_clock != currentConfig.CPUclock) {\r |
| 617 | printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r |
| 618 | gp2x_set_cpuclk(currentConfig.CPUclock);\r |
| 619 | gp2x_old_clock = currentConfig.CPUclock;\r |
| 620 | printf(" done\n");\r |
| 621 | }\r |
| 622 | \r |
| 623 | if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r |
| 624 | set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r |
| 625 | gp2x_old_gamma = currentConfig.gamma;\r |
| 626 | printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r |
| 627 | }\r |
| 628 | \r |
| 629 | if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_PSYNC) {\r |
| 630 | if (currentConfig.EmuOpt & EOPT_PSYNC)\r |
| 631 | set_lcd_custom_rate(Pico.m.pal);\r |
| 632 | else\r |
| 633 | unset_lcd_custom_rate();\r |
| 634 | }\r |
| 635 | \r |
| 636 | if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r |
| 637 | gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r |
| 638 | \r |
| 639 | EmuOpt_old = currentConfig.EmuOpt;\r |
| 640 | fpsbuff[0] = 0;\r |
| 641 | \r |
| 642 | // make sure we are in correct mode\r |
| 643 | vidResetMode();\r |
| 644 | scaling_update();\r |
| 645 | Pico.m.dirtyPal = 1;\r |
| 646 | oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r |
| 647 | \r |
| 648 | // pal/ntsc might have changed, reset related stuff\r |
| 649 | target_fps = Pico.m.pal ? 50 : 60;\r |
| 650 | target_frametime = 1000000/target_fps;\r |
| 651 | reset_timing = 1;\r |
| 652 | \r |
| 653 | pemu_sound_start();\r |
| 654 | \r |
| 655 | // prepare CD buffer\r |
| 656 | if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r |
| 657 | \r |
| 658 | // calc vsync offset to sync timing code with vsync\r |
| 659 | if (currentConfig.EmuOpt&0x2000) {\r |
| 660 | gettimeofday(&tval, 0);\r |
| 661 | gp2x_video_wait_vsync();\r |
| 662 | gettimeofday(&tval, 0);\r |
| 663 | vsync_offset = tval.tv_usec;\r |
| 664 | while (vsync_offset >= target_frametime)\r |
| 665 | vsync_offset -= target_frametime;\r |
| 666 | if (!vsync_offset) vsync_offset++;\r |
| 667 | printf("vsync_offset: %i\n", vsync_offset);\r |
| 668 | } else\r |
| 669 | vsync_offset = 0;\r |
| 670 | \r |
| 671 | frames_done = frames_shown = thissec =\r |
| 672 | pframes_done = pframes_shown = pthissec = 0;\r |
| 673 | \r |
| 674 | // loop\r |
| 675 | while (engineState == PGS_Running)\r |
| 676 | {\r |
| 677 | int modes;\r |
| 678 | \r |
| 679 | gettimeofday(&tval, 0);\r |
| 680 | if (reset_timing) {\r |
| 681 | reset_timing = 0;\r |
| 682 | pthissec = tval.tv_sec;\r |
| 683 | pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r |
| 684 | }\r |
| 685 | \r |
| 686 | // show notice message?\r |
| 687 | if (noticeMsgTime.tv_sec)\r |
| 688 | {\r |
| 689 | static int noticeMsgSum;\r |
| 690 | if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r |
| 691 | noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r |
| 692 | clearArea(0);\r |
| 693 | notice = 0;\r |
| 694 | } else {\r |
| 695 | int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r |
| 696 | if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r |
| 697 | notice = noticeMsg;\r |
| 698 | }\r |
| 699 | }\r |
| 700 | \r |
| 701 | // check for mode changes\r |
| 702 | modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r |
| 703 | if (modes != oldmodes)\r |
| 704 | {\r |
| 705 | int scalex = 320;\r |
| 706 | osd_fps_x = OSD_FPS_X;\r |
| 707 | if (modes & 4) {\r |
| 708 | vidCpyM2 = vidCpyM2_40col;\r |
| 709 | } else {\r |
| 710 | if (PicoOpt & 0x100) {\r |
| 711 | vidCpyM2 = vidCpyM2_32col_nobord;\r |
| 712 | scalex = 256;\r |
| 713 | osd_fps_x = OSD_FPS_X - 64;\r |
| 714 | } else {\r |
| 715 | vidCpyM2 = vidCpyM2_32col;\r |
| 716 | }\r |
| 717 | }\r |
| 718 | /* want vertical scaling and game is not in 240 line mode */\r |
| 719 | if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(modes&8))\r |
| 720 | gp2x_video_RGB_setscaling(8, scalex, 224);\r |
| 721 | else gp2x_video_RGB_setscaling(0, scalex, 240);\r |
| 722 | oldmodes = modes;\r |
| 723 | clearArea(1);\r |
| 724 | }\r |
| 725 | \r |
| 726 | // second changed?\r |
| 727 | if (thissec != tval.tv_sec)\r |
| 728 | {\r |
| 729 | #ifdef BENCHMARK\r |
| 730 | static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r |
| 731 | if (++bench == 10) {\r |
| 732 | bench = 0;\r |
| 733 | bench_fps_s = bench_fps;\r |
| 734 | bf[bfp++ & 3] = bench_fps;\r |
| 735 | bench_fps = 0;\r |
| 736 | }\r |
| 737 | bench_fps += frames_shown;\r |
| 738 | sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r |
| 739 | #else\r |
| 740 | if (currentConfig.EmuOpt & 2) {\r |
| 741 | sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r |
| 742 | if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r |
| 743 | }\r |
| 744 | #endif\r |
| 745 | frames_shown = frames_done = 0;\r |
| 746 | thissec = tval.tv_sec;\r |
| 747 | }\r |
| 748 | #ifdef PFRAMES\r |
| 749 | sprintf(fpsbuff, "%i", Pico.m.frame_count);\r |
| 750 | #endif\r |
| 751 | \r |
| 752 | if (pthissec != tval.tv_sec)\r |
| 753 | {\r |
| 754 | if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r |
| 755 | pframes_done = pframes_shown = 0;\r |
| 756 | } else {\r |
| 757 | // it is quite common for this implementation to leave 1 fame unfinished\r |
| 758 | // when second changes, but we don't want buffer to starve.\r |
| 759 | if (PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r |
| 760 | emu_update_input();\r |
| 761 | SkipFrame(1); pframes_done++;\r |
| 762 | }\r |
| 763 | \r |
| 764 | pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r |
| 765 | pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r |
| 766 | if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r |
| 767 | }\r |
| 768 | pthissec = tval.tv_sec;\r |
| 769 | }\r |
| 770 | \r |
| 771 | lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r |
| 772 | if (currentConfig.Frameskip >= 0) // frameskip enabled\r |
| 773 | {\r |
| 774 | for(i = 0; i < currentConfig.Frameskip; i++) {\r |
| 775 | emu_update_input();\r |
| 776 | SkipFrame(1); pframes_done++; frames_done++;\r |
| 777 | if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r |
| 778 | gettimeofday(&tval, 0);\r |
| 779 | if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r |
| 780 | if (tval.tv_usec < lim_time) { // we are too fast\r |
| 781 | simpleWait(pthissec, lim_time);\r |
| 782 | }\r |
| 783 | }\r |
| 784 | lim_time += target_frametime;\r |
| 785 | }\r |
| 786 | }\r |
| 787 | else if (tval.tv_usec > lim_time) // auto frameskip\r |
| 788 | {\r |
| 789 | // no time left for this frame - skip\r |
| 790 | if (tval.tv_usec - lim_time >= 300000) {\r |
| 791 | /* something caused a slowdown for us (disk access? cache flush?)\r |
| 792 | * try to recover by resetting timing... */\r |
| 793 | reset_timing = 1;\r |
| 794 | continue;\r |
| 795 | }\r |
| 796 | emu_update_input();\r |
| 797 | SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r |
| 798 | continue;\r |
| 799 | }\r |
| 800 | \r |
| 801 | emu_update_input();\r |
| 802 | PicoFrame();\r |
| 803 | \r |
| 804 | // check time\r |
| 805 | gettimeofday(&tval, 0);\r |
| 806 | if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r |
| 807 | \r |
| 808 | if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r |
| 809 | reset_timing = 1;\r |
| 810 | else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r |
| 811 | {\r |
| 812 | // sleep or vsync if we are still too fast\r |
| 813 | // usleep sleeps for ~20ms minimum, so it is not a solution here\r |
| 814 | if (!reset_timing && tval.tv_usec < lim_time)\r |
| 815 | {\r |
| 816 | // we are too fast\r |
| 817 | if (vsync_offset) {\r |
| 818 | if (lim_time - tval.tv_usec > target_frametime/2)\r |
| 819 | simpleWait(pthissec, lim_time - target_frametime/4);\r |
| 820 | gp2x_video_wait_vsync();\r |
| 821 | } else {\r |
| 822 | simpleWait(pthissec, lim_time);\r |
| 823 | }\r |
| 824 | }\r |
| 825 | }\r |
| 826 | \r |
| 827 | blit(fpsbuff, notice);\r |
| 828 | \r |
| 829 | pframes_done++; pframes_shown++;\r |
| 830 | frames_done++; frames_shown++;\r |
| 831 | }\r |
| 832 | \r |
| 833 | emu_set_fastforward(0);\r |
| 834 | \r |
| 835 | if (PicoAHW & PAHW_MCD)\r |
| 836 | PicoCDBufferFree();\r |
| 837 | \r |
| 838 | // save SRAM\r |
| 839 | if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r |
| 840 | plat_status_msg_busy_first("Writing SRAM/BRAM...");\r |
| 841 | emu_save_load_game(0, 1);\r |
| 842 | SRam.changed = 0;\r |
| 843 | }\r |
| 844 | \r |
| 845 | // if in 8bit mode, generate 16bit image for menu background\r |
| 846 | if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))\r |
| 847 | pemu_forced_frame(POPT_EN_SOFTSCALE);\r |
| 848 | }\r |
| 849 | \r |
| 850 | const char *plat_get_credits(void)\r |
| 851 | {\r |
| 852 | return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r |
| 853 | "Credits:\n"\r |
| 854 | "fDave: Cyclone 68000 core,\n"\r |
| 855 | " base code of PicoDrive\n"\r |
| 856 | "Reesy & FluBBa: DrZ80 core\n"\r |
| 857 | "MAME devs: YM2612 and SN76496 cores\n"\r |
| 858 | "rlyeh and others: minimal SDK\n"\r |
| 859 | "Squidge: mmuhack\n"\r |
| 860 | "Dzz: ARM940 sample\n"\r |
| 861 | "GnoStiC / Puck2099: USB joy code\n"\r |
| 862 | "craigix: GP2X hardware\n"\r |
| 863 | "ketchupgun: skin design\n"\r |
| 864 | "\n"\r |
| 865 | "special thanks (for docs, ideas):\n"\r |
| 866 | " Charles MacDonald, Haze,\n"\r |
| 867 | " Stephane Dallongeville,\n"\r |
| 868 | " Lordus, Exophase, Rokas,\n"\r |
| 869 | " Nemesis, Tasco Deluxe";\r |
| 870 | }\r |