| 1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
| 2 | * Mupen64plus-input-sdl - plugin.c * |
| 3 | * Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ * |
| 4 | * Copyright (C) 2008-2011 Richard Goedeken * |
| 5 | * Copyright (C) 2008 Tillin9 * |
| 6 | * Copyright (C) 2002 Blight * |
| 7 | * * |
| 8 | * This program is free software; you can redistribute it and/or modify * |
| 9 | * it under the terms of the GNU General Public License as published by * |
| 10 | * the Free Software Foundation; either version 2 of the License, or * |
| 11 | * (at your option) any later version. * |
| 12 | * * |
| 13 | * This program is distributed in the hope that it will be useful, * |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 16 | * GNU General Public License for more details. * |
| 17 | * * |
| 18 | * You should have received a copy of the GNU General Public License * |
| 19 | * along with this program; if not, write to the * |
| 20 | * Free Software Foundation, Inc., * |
| 21 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
| 22 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 23 | |
| 24 | #include <stdio.h> |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | |
| 28 | #include <SDL.h> |
| 29 | |
| 30 | #define M64P_PLUGIN_PROTOTYPES 1 |
| 31 | #include "m64p_types.h" |
| 32 | #include "m64p_plugin.h" |
| 33 | #include "m64p_common.h" |
| 34 | #include "m64p_config.h" |
| 35 | |
| 36 | #include "plugin.h" |
| 37 | #include "config.h" |
| 38 | #include "version.h" |
| 39 | #include "osal_dynamiclib.h" |
| 40 | |
| 41 | #ifdef __linux__ |
| 42 | #include <unistd.h> |
| 43 | #include <dirent.h> |
| 44 | #include <fcntl.h> |
| 45 | #include <sys/types.h> |
| 46 | #include <linux/input.h> |
| 47 | #endif /* __linux__ */ |
| 48 | |
| 49 | #include <errno.h> |
| 50 | |
| 51 | /* defines for the force feedback rumble support */ |
| 52 | #ifdef __linux__ |
| 53 | #define BITS_PER_LONG (sizeof(long) * 8) |
| 54 | #define OFF(x) ((x)%BITS_PER_LONG) |
| 55 | #define BIT(x) (1UL<<OFF(x)) |
| 56 | #define LONG(x) ((x)/BITS_PER_LONG) |
| 57 | #define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1) |
| 58 | #endif //__linux__ |
| 59 | |
| 60 | /* definitions of pointers to Core config functions */ |
| 61 | ptr_ConfigOpenSection ConfigOpenSection = NULL; |
| 62 | ptr_ConfigDeleteSection ConfigDeleteSection = NULL; |
| 63 | ptr_ConfigSaveSection ConfigSaveSection = NULL; |
| 64 | ptr_ConfigListParameters ConfigListParameters = NULL; |
| 65 | ptr_ConfigSaveFile ConfigSaveFile = NULL; |
| 66 | ptr_ConfigSetParameter ConfigSetParameter = NULL; |
| 67 | ptr_ConfigGetParameter ConfigGetParameter = NULL; |
| 68 | ptr_ConfigGetParameterHelp ConfigGetParameterHelp = NULL; |
| 69 | ptr_ConfigSetDefaultInt ConfigSetDefaultInt = NULL; |
| 70 | ptr_ConfigSetDefaultFloat ConfigSetDefaultFloat = NULL; |
| 71 | ptr_ConfigSetDefaultBool ConfigSetDefaultBool = NULL; |
| 72 | ptr_ConfigSetDefaultString ConfigSetDefaultString = NULL; |
| 73 | ptr_ConfigGetParamInt ConfigGetParamInt = NULL; |
| 74 | ptr_ConfigGetParamFloat ConfigGetParamFloat = NULL; |
| 75 | ptr_ConfigGetParamBool ConfigGetParamBool = NULL; |
| 76 | ptr_ConfigGetParamString ConfigGetParamString = NULL; |
| 77 | |
| 78 | ptr_ConfigGetSharedDataFilepath ConfigGetSharedDataFilepath = NULL; |
| 79 | ptr_ConfigGetUserConfigPath ConfigGetUserConfigPath = NULL; |
| 80 | ptr_ConfigGetUserDataPath ConfigGetUserDataPath = NULL; |
| 81 | ptr_ConfigGetUserCachePath ConfigGetUserCachePath = NULL; |
| 82 | |
| 83 | /* global data definitions */ |
| 84 | SController controller[4]; // 4 controllers |
| 85 | |
| 86 | /* static data definitions */ |
| 87 | static void (*l_DebugCallback)(void *, int, const char *) = NULL; |
| 88 | static void *l_DebugCallContext = NULL; |
| 89 | static int l_PluginInit = 0; |
| 90 | |
| 91 | static unsigned short button_bits[] = { |
| 92 | 0x0001, // R_DPAD |
| 93 | 0x0002, // L_DPAD |
| 94 | 0x0004, // D_DPAD |
| 95 | 0x0008, // U_DPAD |
| 96 | 0x0010, // START_BUTTON |
| 97 | 0x0020, // Z_TRIG |
| 98 | 0x0040, // B_BUTTON |
| 99 | 0x0080, // A_BUTTON |
| 100 | 0x0100, // R_CBUTTON |
| 101 | 0x0200, // L_CBUTTON |
| 102 | 0x0400, // D_CBUTTON |
| 103 | 0x0800, // U_CBUTTON |
| 104 | 0x1000, // R_TRIG |
| 105 | 0x2000, // L_TRIG |
| 106 | 0x4000, // Mempak switch |
| 107 | 0x8000 // Rumblepak switch |
| 108 | }; |
| 109 | |
| 110 | static int romopen = 0; // is a rom opened |
| 111 | |
| 112 | static unsigned char myKeyState[SDL_NUM_SCANCODES]; |
| 113 | |
| 114 | #ifdef __linux__ |
| 115 | static struct ff_effect ffeffect[4]; |
| 116 | static struct ff_effect ffstrong[4]; |
| 117 | static struct ff_effect ffweak[4]; |
| 118 | #endif //__linux__ |
| 119 | |
| 120 | /* Global functions */ |
| 121 | void DebugMessage(int level, const char *message, ...) |
| 122 | { |
| 123 | char msgbuf[1024]; |
| 124 | va_list args; |
| 125 | |
| 126 | if (l_DebugCallback == NULL) |
| 127 | return; |
| 128 | |
| 129 | va_start(args, message); |
| 130 | vsprintf(msgbuf, message, args); |
| 131 | |
| 132 | (*l_DebugCallback)(l_DebugCallContext, level, msgbuf); |
| 133 | |
| 134 | va_end(args); |
| 135 | } |
| 136 | |
| 137 | static CONTROL temp_core_controlinfo[4]; |
| 138 | |
| 139 | /* Mupen64Plus plugin functions */ |
| 140 | EXPORT m64p_error CALL PluginStartup(m64p_dynlib_handle CoreLibHandle, void *Context, |
| 141 | void (*DebugCallback)(void *, int, const char *)) |
| 142 | { |
| 143 | ptr_CoreGetAPIVersions CoreAPIVersionFunc; |
| 144 | |
| 145 | int i, ConfigAPIVersion, DebugAPIVersion, VidextAPIVersion; |
| 146 | |
| 147 | if (l_PluginInit) |
| 148 | return M64ERR_ALREADY_INIT; |
| 149 | |
| 150 | /* first thing is to set the callback function for debug info */ |
| 151 | l_DebugCallback = DebugCallback; |
| 152 | l_DebugCallContext = Context; |
| 153 | |
| 154 | /* attach and call the CoreGetAPIVersions function, check Config API version for compatibility */ |
| 155 | CoreAPIVersionFunc = (ptr_CoreGetAPIVersions) osal_dynlib_getproc(CoreLibHandle, "CoreGetAPIVersions"); |
| 156 | if (CoreAPIVersionFunc == NULL) |
| 157 | { |
| 158 | DebugMessage(M64MSG_ERROR, "Core emulator broken; no CoreAPIVersionFunc() function found."); |
| 159 | return M64ERR_INCOMPATIBLE; |
| 160 | } |
| 161 | |
| 162 | (*CoreAPIVersionFunc)(&ConfigAPIVersion, &DebugAPIVersion, &VidextAPIVersion, NULL); |
| 163 | if ((ConfigAPIVersion & 0xffff0000) != (CONFIG_API_VERSION & 0xffff0000) || ConfigAPIVersion < CONFIG_API_VERSION) |
| 164 | { |
| 165 | DebugMessage(M64MSG_ERROR, "Emulator core Config API (v%i.%i.%i) incompatible with plugin (v%i.%i.%i)", |
| 166 | VERSION_PRINTF_SPLIT(ConfigAPIVersion), VERSION_PRINTF_SPLIT(CONFIG_API_VERSION)); |
| 167 | return M64ERR_INCOMPATIBLE; |
| 168 | } |
| 169 | |
| 170 | /* Get the core config function pointers from the library handle */ |
| 171 | ConfigOpenSection = (ptr_ConfigOpenSection) osal_dynlib_getproc(CoreLibHandle, "ConfigOpenSection"); |
| 172 | ConfigDeleteSection = (ptr_ConfigDeleteSection) osal_dynlib_getproc(CoreLibHandle, "ConfigDeleteSection"); |
| 173 | ConfigSaveFile = (ptr_ConfigSaveFile) osal_dynlib_getproc(CoreLibHandle, "ConfigSaveFile"); |
| 174 | ConfigSaveSection = (ptr_ConfigSaveSection) osal_dynlib_getproc(CoreLibHandle, "ConfigSaveSection"); |
| 175 | ConfigListParameters = (ptr_ConfigListParameters) osal_dynlib_getproc(CoreLibHandle, "ConfigListParameters"); |
| 176 | ConfigSetParameter = (ptr_ConfigSetParameter) osal_dynlib_getproc(CoreLibHandle, "ConfigSetParameter"); |
| 177 | ConfigGetParameter = (ptr_ConfigGetParameter) osal_dynlib_getproc(CoreLibHandle, "ConfigGetParameter"); |
| 178 | ConfigSetDefaultInt = (ptr_ConfigSetDefaultInt) osal_dynlib_getproc(CoreLibHandle, "ConfigSetDefaultInt"); |
| 179 | ConfigSetDefaultFloat = (ptr_ConfigSetDefaultFloat) osal_dynlib_getproc(CoreLibHandle, "ConfigSetDefaultFloat"); |
| 180 | ConfigSetDefaultBool = (ptr_ConfigSetDefaultBool) osal_dynlib_getproc(CoreLibHandle, "ConfigSetDefaultBool"); |
| 181 | ConfigSetDefaultString = (ptr_ConfigSetDefaultString) osal_dynlib_getproc(CoreLibHandle, "ConfigSetDefaultString"); |
| 182 | ConfigGetParamInt = (ptr_ConfigGetParamInt) osal_dynlib_getproc(CoreLibHandle, "ConfigGetParamInt"); |
| 183 | ConfigGetParamFloat = (ptr_ConfigGetParamFloat) osal_dynlib_getproc(CoreLibHandle, "ConfigGetParamFloat"); |
| 184 | ConfigGetParamBool = (ptr_ConfigGetParamBool) osal_dynlib_getproc(CoreLibHandle, "ConfigGetParamBool"); |
| 185 | ConfigGetParamString = (ptr_ConfigGetParamString) osal_dynlib_getproc(CoreLibHandle, "ConfigGetParamString"); |
| 186 | |
| 187 | ConfigGetSharedDataFilepath = (ptr_ConfigGetSharedDataFilepath) osal_dynlib_getproc(CoreLibHandle, "ConfigGetSharedDataFilepath"); |
| 188 | ConfigGetUserConfigPath = (ptr_ConfigGetUserConfigPath) osal_dynlib_getproc(CoreLibHandle, "ConfigGetUserConfigPath"); |
| 189 | ConfigGetUserDataPath = (ptr_ConfigGetUserDataPath) osal_dynlib_getproc(CoreLibHandle, "ConfigGetUserDataPath"); |
| 190 | ConfigGetUserCachePath = (ptr_ConfigGetUserCachePath) osal_dynlib_getproc(CoreLibHandle, "ConfigGetUserCachePath"); |
| 191 | |
| 192 | if (!ConfigOpenSection || !ConfigDeleteSection || !ConfigSaveFile || !ConfigSaveSection || !ConfigSetParameter || !ConfigGetParameter || |
| 193 | !ConfigSetDefaultInt || !ConfigSetDefaultFloat || !ConfigSetDefaultBool || !ConfigSetDefaultString || |
| 194 | !ConfigGetParamInt || !ConfigGetParamFloat || !ConfigGetParamBool || !ConfigGetParamString || |
| 195 | !ConfigGetSharedDataFilepath || !ConfigGetUserConfigPath || !ConfigGetUserDataPath || !ConfigGetUserCachePath) |
| 196 | { |
| 197 | DebugMessage(M64MSG_ERROR, "Couldn't connect to Core configuration functions"); |
| 198 | return M64ERR_INCOMPATIBLE; |
| 199 | } |
| 200 | |
| 201 | /* reset controllers */ |
| 202 | memset(controller, 0, sizeof(SController) * 4); |
| 203 | for (i = 0; i < SDL_NUM_SCANCODES; i++) |
| 204 | { |
| 205 | myKeyState[i] = 0; |
| 206 | } |
| 207 | /* set CONTROL struct pointers to the temporary static array */ |
| 208 | /* this small struct is used to tell the core whether each controller is plugged in, and what type of pak is connected */ |
| 209 | /* we only need it so that we can call load_configuration below, to auto-config for a GUI front-end */ |
| 210 | for (i = 0; i < 4; i++) |
| 211 | controller[i].control = temp_core_controlinfo + i; |
| 212 | |
| 213 | /* read plugin config from core config database, auto-config if necessary and update core database */ |
| 214 | load_configuration(1); |
| 215 | |
| 216 | l_PluginInit = 1; |
| 217 | return M64ERR_SUCCESS; |
| 218 | } |
| 219 | |
| 220 | EXPORT m64p_error CALL PluginShutdown(void) |
| 221 | { |
| 222 | if (!l_PluginInit) |
| 223 | return M64ERR_NOT_INIT; |
| 224 | |
| 225 | /* reset some local variables */ |
| 226 | l_DebugCallback = NULL; |
| 227 | l_DebugCallContext = NULL; |
| 228 | |
| 229 | l_PluginInit = 0; |
| 230 | return M64ERR_SUCCESS; |
| 231 | } |
| 232 | |
| 233 | EXPORT m64p_error CALL PluginGetVersion(m64p_plugin_type *PluginType, int *PluginVersion, int *APIVersion, const char **PluginNamePtr, int *Capabilities) |
| 234 | { |
| 235 | /* set version info */ |
| 236 | if (PluginType != NULL) |
| 237 | *PluginType = M64PLUGIN_INPUT; |
| 238 | |
| 239 | if (PluginVersion != NULL) |
| 240 | *PluginVersion = PLUGIN_VERSION; |
| 241 | |
| 242 | if (APIVersion != NULL) |
| 243 | *APIVersion = INPUT_PLUGIN_API_VERSION; |
| 244 | |
| 245 | if (PluginNamePtr != NULL) |
| 246 | *PluginNamePtr = PLUGIN_NAME; |
| 247 | |
| 248 | if (Capabilities != NULL) |
| 249 | { |
| 250 | *Capabilities = 0; |
| 251 | } |
| 252 | |
| 253 | return M64ERR_SUCCESS; |
| 254 | } |
| 255 | |
| 256 | /* Helper function to handle the SDL keys */ |
| 257 | static void |
| 258 | doSdlKeys(unsigned char* keystate) |
| 259 | { |
| 260 | int c, b, axis_val, axis_max_val; |
| 261 | static int grabmouse = 1, grabtoggled = 0; |
| 262 | |
| 263 | axis_max_val = 80; |
| 264 | if (keystate[SDL_SCANCODE_RCTRL]) |
| 265 | axis_max_val -= 40; |
| 266 | if (keystate[SDL_SCANCODE_RSHIFT]) |
| 267 | axis_max_val -= 20; |
| 268 | |
| 269 | for( c = 0; c < 4; c++ ) |
| 270 | { |
| 271 | for( b = 0; b < 16; b++ ) |
| 272 | { |
| 273 | if( controller[c].button[b].key == SDL_SCANCODE_UNKNOWN || ((int) controller[c].button[b].key) < 0) |
| 274 | continue; |
| 275 | if( keystate[controller[c].button[b].key] ) |
| 276 | controller[c].buttons.Value |= button_bits[b]; |
| 277 | } |
| 278 | for( b = 0; b < 2; b++ ) |
| 279 | { |
| 280 | // from the N64 func ref: The 3D Stick data is of type signed char and in |
| 281 | // the range between 80 and -80. (32768 / 409 = ~80.1) |
| 282 | if( b == 0 ) |
| 283 | axis_val = controller[c].buttons.X_AXIS; |
| 284 | else |
| 285 | axis_val = -controller[c].buttons.Y_AXIS; |
| 286 | |
| 287 | if( controller[c].axis[b].key_a != SDL_SCANCODE_UNKNOWN && ((int) controller[c].axis[b].key_a) > 0) |
| 288 | if( keystate[controller[c].axis[b].key_a] ) |
| 289 | axis_val = -axis_max_val; |
| 290 | if( controller[c].axis[b].key_b != SDL_SCANCODE_UNKNOWN && ((int) controller[c].axis[b].key_b) > 0) |
| 291 | if( keystate[controller[c].axis[b].key_b] ) |
| 292 | axis_val = axis_max_val; |
| 293 | |
| 294 | if( b == 0 ) |
| 295 | controller[c].buttons.X_AXIS = axis_val; |
| 296 | else |
| 297 | controller[c].buttons.Y_AXIS = -axis_val; |
| 298 | } |
| 299 | if (controller[c].mouse) |
| 300 | { |
| 301 | if (keystate[SDL_SCANCODE_LCTRL] && keystate[SDL_SCANCODE_LALT]) |
| 302 | { |
| 303 | if (!grabtoggled) |
| 304 | { |
| 305 | grabtoggled = 1; |
| 306 | grabmouse = !grabmouse; |
| 307 | // grab/ungrab mouse |
| 308 | #if SDL_VERSION_ATLEAST(2,0,0) |
| 309 | #warning SDL mouse grabbing not yet supported with SDL 2.0 |
| 310 | #else |
| 311 | SDL_WM_GrabInput( grabmouse ? SDL_GRAB_ON : SDL_GRAB_OFF ); |
| 312 | #endif |
| 313 | SDL_ShowCursor( grabmouse ? 0 : 1 ); |
| 314 | } |
| 315 | } |
| 316 | else grabtoggled = 0; |
| 317 | } |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | static unsigned char DataCRC( unsigned char *Data, int iLenght ) |
| 322 | { |
| 323 | unsigned char Remainder = Data[0]; |
| 324 | |
| 325 | int iByte = 1; |
| 326 | unsigned char bBit = 0; |
| 327 | |
| 328 | while( iByte <= iLenght ) |
| 329 | { |
| 330 | int HighBit = ((Remainder & 0x80) != 0); |
| 331 | Remainder = Remainder << 1; |
| 332 | |
| 333 | Remainder += ( iByte < iLenght && Data[iByte] & (0x80 >> bBit )) ? 1 : 0; |
| 334 | |
| 335 | Remainder ^= (HighBit) ? 0x85 : 0; |
| 336 | |
| 337 | bBit++; |
| 338 | iByte += bBit/8; |
| 339 | bBit %= 8; |
| 340 | } |
| 341 | |
| 342 | return Remainder; |
| 343 | } |
| 344 | |
| 345 | /****************************************************************** |
| 346 | Function: ControllerCommand |
| 347 | Purpose: To process the raw data that has just been sent to a |
| 348 | specific controller. |
| 349 | input: - Controller Number (0 to 3) and -1 signalling end of |
| 350 | processing the pif ram. |
| 351 | - Pointer of data to be processed. |
| 352 | output: none |
| 353 | |
| 354 | note: This function is only needed if the DLL is allowing raw |
| 355 | data, or the plugin is set to raw |
| 356 | |
| 357 | the data that is being processed looks like this: |
| 358 | initilize controller: 01 03 00 FF FF FF |
| 359 | read controller: 01 04 01 FF FF FF FF |
| 360 | *******************************************************************/ |
| 361 | EXPORT void CALL ControllerCommand(int Control, unsigned char *Command) |
| 362 | { |
| 363 | unsigned char *Data = &Command[5]; |
| 364 | |
| 365 | if (Control == -1) |
| 366 | return; |
| 367 | |
| 368 | switch (Command[2]) |
| 369 | { |
| 370 | case RD_GETSTATUS: |
| 371 | #ifdef _DEBUG |
| 372 | DebugMessage(M64MSG_INFO, "Get status"); |
| 373 | #endif |
| 374 | break; |
| 375 | case RD_READKEYS: |
| 376 | #ifdef _DEBUG |
| 377 | DebugMessage(M64MSG_INFO, "Read keys"); |
| 378 | #endif |
| 379 | break; |
| 380 | case RD_READPAK: |
| 381 | #ifdef _DEBUG |
| 382 | DebugMessage(M64MSG_INFO, "Read pak"); |
| 383 | #endif |
| 384 | if (controller[Control].control->Plugin == PLUGIN_RAW) |
| 385 | { |
| 386 | unsigned int dwAddress = (Command[3] << 8) + (Command[4] & 0xE0); |
| 387 | |
| 388 | if(( dwAddress >= 0x8000 ) && ( dwAddress < 0x9000 ) ) |
| 389 | memset( Data, 0x80, 32 ); |
| 390 | else |
| 391 | memset( Data, 0x00, 32 ); |
| 392 | |
| 393 | Data[32] = DataCRC( Data, 32 ); |
| 394 | } |
| 395 | break; |
| 396 | case RD_WRITEPAK: |
| 397 | #ifdef _DEBUG |
| 398 | DebugMessage(M64MSG_INFO, "Write pak"); |
| 399 | #endif |
| 400 | if (controller[Control].control->Plugin == PLUGIN_RAW) |
| 401 | { |
| 402 | unsigned int dwAddress = (Command[3] << 8) + (Command[4] & 0xE0); |
| 403 | if (dwAddress == PAK_IO_RUMBLE && *Data) |
| 404 | DebugMessage(M64MSG_VERBOSE, "Triggering rumble pack."); |
| 405 | #ifdef __linux__ |
| 406 | struct input_event play; |
| 407 | if( dwAddress == PAK_IO_RUMBLE && controller[Control].event_joystick != 0) |
| 408 | { |
| 409 | if( *Data ) |
| 410 | { |
| 411 | play.type = EV_FF; |
| 412 | play.code = ffeffect[Control].id; |
| 413 | play.value = 1; |
| 414 | |
| 415 | if (write(controller[Control].event_joystick, (const void*) &play, sizeof(play)) == -1) |
| 416 | perror("Error starting rumble effect"); |
| 417 | |
| 418 | } |
| 419 | else |
| 420 | { |
| 421 | play.type = EV_FF; |
| 422 | play.code = ffeffect[Control].id; |
| 423 | play.value = 0; |
| 424 | |
| 425 | if (write(controller[Control].event_joystick, (const void*) &play, sizeof(play)) == -1) |
| 426 | perror("Error stopping rumble effect"); |
| 427 | } |
| 428 | } |
| 429 | #endif //__linux__ |
| 430 | Data[32] = DataCRC( Data, 32 ); |
| 431 | } |
| 432 | break; |
| 433 | case RD_RESETCONTROLLER: |
| 434 | #ifdef _DEBUG |
| 435 | DebugMessage(M64MSG_INFO, "Reset controller"); |
| 436 | #endif |
| 437 | break; |
| 438 | case RD_READEEPROM: |
| 439 | #ifdef _DEBUG |
| 440 | DebugMessage(M64MSG_INFO, "Read eeprom"); |
| 441 | #endif |
| 442 | break; |
| 443 | case RD_WRITEEPROM: |
| 444 | #ifdef _DEBUG |
| 445 | DebugMessage(M64MSG_INFO, "Write eeprom"); |
| 446 | #endif |
| 447 | break; |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | /****************************************************************** |
| 452 | Function: GetKeys |
| 453 | Purpose: To get the current state of the controllers buttons. |
| 454 | input: - Controller Number (0 to 3) |
| 455 | - A pointer to a BUTTONS structure to be filled with |
| 456 | the controller state. |
| 457 | output: none |
| 458 | *******************************************************************/ |
| 459 | EXPORT void CALL GetKeys( int Control, BUTTONS *Keys ) |
| 460 | { |
| 461 | static int mousex_residual = 0; |
| 462 | static int mousey_residual = 0; |
| 463 | int b, axis_val; |
| 464 | SDL_Event event; |
| 465 | unsigned char mstate; |
| 466 | |
| 467 | // Handle keyboard input first |
| 468 | doSdlKeys(SDL_GetKeyboardState(NULL)); |
| 469 | doSdlKeys(myKeyState); |
| 470 | |
| 471 | // read joystick state |
| 472 | SDL_JoystickUpdate(); |
| 473 | |
| 474 | if( controller[Control].device >= 0 ) |
| 475 | { |
| 476 | for( b = 0; b < 16; b++ ) |
| 477 | { |
| 478 | if( controller[Control].button[b].button >= 0 ) |
| 479 | if( SDL_JoystickGetButton( controller[Control].joystick, controller[Control].button[b].button ) ) |
| 480 | controller[Control].buttons.Value |= button_bits[b]; |
| 481 | |
| 482 | if( controller[Control].button[b].axis >= 0 ) |
| 483 | { |
| 484 | int deadzone = controller[Control].button[b].axis_deadzone; |
| 485 | axis_val = SDL_JoystickGetAxis( controller[Control].joystick, controller[Control].button[b].axis ); |
| 486 | if (deadzone < 0) |
| 487 | deadzone = 6000; /* default */ |
| 488 | if( (controller[Control].button[b].axis_dir < 0) && (axis_val <= -deadzone) ) |
| 489 | controller[Control].buttons.Value |= button_bits[b]; |
| 490 | else if( (controller[Control].button[b].axis_dir > 0) && (axis_val >= deadzone) ) |
| 491 | controller[Control].buttons.Value |= button_bits[b]; |
| 492 | } |
| 493 | |
| 494 | if( controller[Control].button[b].hat >= 0 ) |
| 495 | { |
| 496 | if( controller[Control].button[b].hat_pos > 0 ) |
| 497 | if( SDL_JoystickGetHat( controller[Control].joystick, controller[Control].button[b].hat ) & controller[Control].button[b].hat_pos ) |
| 498 | controller[Control].buttons.Value |= button_bits[b]; |
| 499 | } |
| 500 | } |
| 501 | for( b = 0; b < 2; b++ ) |
| 502 | { |
| 503 | /* from the N64 func ref: The 3D Stick data is of type signed char and in the range between -80 and +80 */ |
| 504 | int deadzone = controller[Control].axis_deadzone[b]; |
| 505 | int range = controller[Control].axis_peak[b] - controller[Control].axis_deadzone[b]; |
| 506 | /* skip this axis if the deadzone/peak values are invalid */ |
| 507 | if (deadzone < 0 || range < 1) |
| 508 | continue; |
| 509 | |
| 510 | if( b == 0 ) |
| 511 | axis_val = controller[Control].buttons.X_AXIS; |
| 512 | else |
| 513 | axis_val = -controller[Control].buttons.Y_AXIS; |
| 514 | |
| 515 | if( controller[Control].axis[b].axis_a >= 0 ) /* up and left for N64 */ |
| 516 | { |
| 517 | int joy_val = SDL_JoystickGetAxis(controller[Control].joystick, controller[Control].axis[b].axis_a); |
| 518 | int axis_dir = controller[Control].axis[b].axis_dir_a; |
| 519 | if (joy_val * axis_dir > deadzone) |
| 520 | axis_val = -((abs(joy_val) - deadzone) * 80 / range); |
| 521 | if (axis_val < -80) |
| 522 | axis_val = -80; |
| 523 | } |
| 524 | if( controller[Control].axis[b].axis_b >= 0 ) /* down and right for N64 */ |
| 525 | { |
| 526 | int joy_val = SDL_JoystickGetAxis(controller[Control].joystick, controller[Control].axis[b].axis_b); |
| 527 | int axis_dir = controller[Control].axis[b].axis_dir_b; |
| 528 | if (joy_val * axis_dir > deadzone) |
| 529 | axis_val = ((abs(joy_val) - deadzone) * 80 / range); |
| 530 | if (axis_val > 80) |
| 531 | axis_val = 80; |
| 532 | } |
| 533 | if( controller[Control].axis[b].hat >= 0 ) |
| 534 | { |
| 535 | if( controller[Control].axis[b].hat_pos_a >= 0 ) |
| 536 | if( SDL_JoystickGetHat( controller[Control].joystick, controller[Control].axis[b].hat ) & controller[Control].axis[b].hat_pos_a ) |
| 537 | axis_val = -80; |
| 538 | if( controller[Control].axis[b].hat_pos_b >= 0 ) |
| 539 | if( SDL_JoystickGetHat( controller[Control].joystick, controller[Control].axis[b].hat ) & controller[Control].axis[b].hat_pos_b ) |
| 540 | axis_val = 80; |
| 541 | } |
| 542 | |
| 543 | if( controller[Control].axis[b].button_a >= 0 ) |
| 544 | if( SDL_JoystickGetButton( controller[Control].joystick, controller[Control].axis[b].button_a ) ) |
| 545 | axis_val = -80; |
| 546 | if( controller[Control].axis[b].button_b >= 0 ) |
| 547 | if( SDL_JoystickGetButton( controller[Control].joystick, controller[Control].axis[b].button_b ) ) |
| 548 | axis_val = 80; |
| 549 | |
| 550 | if( b == 0 ) |
| 551 | controller[Control].buttons.X_AXIS = axis_val; |
| 552 | else |
| 553 | controller[Control].buttons.Y_AXIS = -axis_val; |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | // process mouse events |
| 558 | mstate = SDL_GetMouseState( NULL, NULL ); |
| 559 | for( b = 0; b < 16; b++ ) |
| 560 | { |
| 561 | if( controller[Control].button[b].mouse < 1 ) |
| 562 | continue; |
| 563 | if( mstate & SDL_BUTTON(controller[Control].button[b].mouse) ) |
| 564 | controller[Control].buttons.Value |= button_bits[b]; |
| 565 | } |
| 566 | |
| 567 | if (controller[Control].mouse) |
| 568 | { |
| 569 | #if SDL_VERSION_ATLEAST(2,0,0) |
| 570 | #warning SDL mouse grabbing not yet supported with SDL 2.0 |
| 571 | #else |
| 572 | if (SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_ON) |
| 573 | { |
| 574 | SDL_PumpEvents(); |
| 575 | #if SDL_VERSION_ATLEAST(1,3,0) |
| 576 | while (SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_MOUSEMOTION, SDL_MOUSEMOTION) == 1) |
| 577 | #else |
| 578 | while (SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(SDL_MOUSEMOTION)) == 1) |
| 579 | #endif |
| 580 | { |
| 581 | if (event.motion.xrel) |
| 582 | { |
| 583 | mousex_residual += (int) (event.motion.xrel * controller[Control].mouse_sens[0]); |
| 584 | } |
| 585 | if (event.motion.yrel) |
| 586 | { |
| 587 | mousey_residual += (int) (event.motion.yrel * controller[Control].mouse_sens[1]); |
| 588 | } |
| 589 | } |
| 590 | } |
| 591 | else |
| 592 | #endif |
| 593 | { |
| 594 | mousex_residual = 0; |
| 595 | mousey_residual = 0; |
| 596 | } |
| 597 | axis_val = mousex_residual; |
| 598 | if (axis_val < -80) |
| 599 | axis_val = -80; |
| 600 | else if (axis_val > 80) |
| 601 | axis_val = 80; |
| 602 | controller[Control].buttons.X_AXIS = axis_val; |
| 603 | axis_val = mousey_residual; |
| 604 | if (axis_val < -80) |
| 605 | axis_val = -80; |
| 606 | else if (axis_val > 80) |
| 607 | axis_val = 80; |
| 608 | controller[Control].buttons.Y_AXIS = -axis_val; |
| 609 | /* the mouse x/y values decay exponentially */ |
| 610 | mousex_residual = (mousex_residual * 224) / 256; |
| 611 | mousey_residual = (mousey_residual * 224) / 256; |
| 612 | } |
| 613 | |
| 614 | #ifdef _DEBUG |
| 615 | DebugMessage(M64MSG_VERBOSE, "Controller #%d value: 0x%8.8X", Control, *(int *)&controller[Control].buttons ); |
| 616 | #endif |
| 617 | *Keys = controller[Control].buttons; |
| 618 | |
| 619 | /* handle mempack / rumblepak switching (only if rumble is active on joystick) */ |
| 620 | #ifdef __linux__ |
| 621 | if (controller[Control].event_joystick != 0) |
| 622 | { |
| 623 | struct input_event play; |
| 624 | static unsigned int SwitchPackTime[4] = {0, 0, 0, 0}, SwitchPackType[4] = {0, 0, 0, 0}; |
| 625 | // when the user switches packs, we should mimick the act of removing 1 pack, and then inserting another 1 second later |
| 626 | if (controller[Control].buttons.Value & button_bits[14]) |
| 627 | { |
| 628 | SwitchPackTime[Control] = SDL_GetTicks(); // time at which the 'switch pack' command was given |
| 629 | SwitchPackType[Control] = PLUGIN_MEMPAK; // type of new pack to insert |
| 630 | controller[Control].control->Plugin = PLUGIN_NONE;// remove old pack |
| 631 | play.type = EV_FF; |
| 632 | play.code = ffweak[Control].id; |
| 633 | play.value = 1; |
| 634 | if (write(controller[Control].event_joystick, (const void*) &play, sizeof(play)) == -1) |
| 635 | perror("Error starting rumble effect"); |
| 636 | } |
| 637 | if (controller[Control].buttons.Value & button_bits[15]) |
| 638 | { |
| 639 | SwitchPackTime[Control] = SDL_GetTicks(); // time at which the 'switch pack' command was given |
| 640 | SwitchPackType[Control] = PLUGIN_RAW; // type of new pack to insert |
| 641 | controller[Control].control->Plugin = PLUGIN_NONE;// remove old pack |
| 642 | play.type = EV_FF; |
| 643 | play.code = ffstrong[Control].id; |
| 644 | play.value = 1; |
| 645 | if (write(controller[Control].event_joystick, (const void*) &play, sizeof(play)) == -1) |
| 646 | perror("Error starting rumble effect"); |
| 647 | } |
| 648 | // handle inserting new pack if the time has arrived |
| 649 | if (SwitchPackTime[Control] != 0 && (SDL_GetTicks() - SwitchPackTime[Control]) >= 1000) |
| 650 | { |
| 651 | controller[Control].control->Plugin = SwitchPackType[Control]; |
| 652 | SwitchPackTime[Control] = 0; |
| 653 | } |
| 654 | } |
| 655 | #endif /* __linux__ */ |
| 656 | |
| 657 | controller[Control].buttons.Value = 0; |
| 658 | } |
| 659 | |
| 660 | static void InitiateRumble(int cntrl) |
| 661 | { |
| 662 | #ifdef __linux__ |
| 663 | DIR* dp; |
| 664 | struct dirent* ep; |
| 665 | unsigned long features[4]; |
| 666 | char temp[128]; |
| 667 | char temp2[128]; |
| 668 | int iFound = 0; |
| 669 | |
| 670 | controller[cntrl].event_joystick = 0; |
| 671 | |
| 672 | sprintf(temp,"/sys/class/input/js%d/device", controller[cntrl].device); |
| 673 | dp = opendir(temp); |
| 674 | |
| 675 | if(dp==NULL) |
| 676 | return; |
| 677 | |
| 678 | while ((ep=readdir(dp))) |
| 679 | { |
| 680 | if (strncmp(ep->d_name, "event",5)==0) |
| 681 | { |
| 682 | sprintf(temp, "/dev/input/%s", ep->d_name); |
| 683 | iFound = 1; |
| 684 | break; |
| 685 | } |
| 686 | else if(strncmp(ep->d_name,"input:event", 11)==0) |
| 687 | { |
| 688 | sscanf(ep->d_name, "input:%s", temp2); |
| 689 | sprintf(temp, "/dev/input/%s", temp2); |
| 690 | iFound = 1; |
| 691 | break; |
| 692 | } |
| 693 | else if(strncmp(ep->d_name,"input:input", 11)==0) |
| 694 | { |
| 695 | strcat(temp, "/"); |
| 696 | strcat(temp, ep->d_name); |
| 697 | closedir (dp); |
| 698 | dp = opendir(temp); |
| 699 | if(dp==NULL) |
| 700 | return; |
| 701 | } |
| 702 | } |
| 703 | |
| 704 | closedir(dp); |
| 705 | |
| 706 | if (!iFound) |
| 707 | { |
| 708 | DebugMessage(M64MSG_WARNING, "Couldn't find input event for rumble support."); |
| 709 | return; |
| 710 | } |
| 711 | |
| 712 | controller[cntrl].event_joystick = open(temp, O_RDWR); |
| 713 | if(controller[cntrl].event_joystick==-1) |
| 714 | { |
| 715 | DebugMessage(M64MSG_WARNING, "Couldn't open device file '%s' for rumble support.", temp); |
| 716 | controller[cntrl].event_joystick = 0; |
| 717 | return; |
| 718 | } |
| 719 | |
| 720 | if(ioctl(controller[cntrl].event_joystick, EVIOCGBIT(EV_FF, sizeof(unsigned long) * 4), features)==-1) |
| 721 | { |
| 722 | DebugMessage(M64MSG_WARNING, "Linux kernel communication failed for force feedback (rumble).\n"); |
| 723 | controller[cntrl].event_joystick = 0; |
| 724 | return; |
| 725 | } |
| 726 | |
| 727 | if(!test_bit(FF_RUMBLE, features)) |
| 728 | { |
| 729 | DebugMessage(M64MSG_WARNING, "No rumble supported on N64 joystick #%i", cntrl + 1); |
| 730 | controller[cntrl].event_joystick = 0; |
| 731 | return; |
| 732 | } |
| 733 | |
| 734 | ffeffect[cntrl].type = FF_RUMBLE; |
| 735 | ffeffect[cntrl].id = -1; |
| 736 | ffeffect[cntrl].u.rumble.strong_magnitude = 0xFFFF; |
| 737 | ffeffect[cntrl].u.rumble.weak_magnitude = 0xFFFF; |
| 738 | ffeffect[cntrl].replay.length = 0x7fff; // hack: xboxdrv is buggy and doesn't support infinite replay. |
| 739 | // when xboxdrv is fixed (https://github.com/Grumbel/xboxdrv/issues/47), |
| 740 | // please remove this |
| 741 | |
| 742 | ioctl(controller[cntrl].event_joystick, EVIOCSFF, &ffeffect[cntrl]); |
| 743 | |
| 744 | ffstrong[cntrl].type = FF_RUMBLE; |
| 745 | ffstrong[cntrl].id = -1; |
| 746 | ffstrong[cntrl].u.rumble.strong_magnitude = 0xFFFF; |
| 747 | ffstrong[cntrl].u.rumble.weak_magnitude = 0x0000; |
| 748 | ffstrong[cntrl].replay.length = 500; |
| 749 | ffstrong[cntrl].replay.delay = 0; |
| 750 | |
| 751 | ioctl(controller[cntrl].event_joystick, EVIOCSFF, &ffstrong[cntrl]); |
| 752 | |
| 753 | ffweak[cntrl].type = FF_RUMBLE; |
| 754 | ffweak[cntrl].id = -1; |
| 755 | ffweak[cntrl].u.rumble.strong_magnitude = 0x0000; |
| 756 | ffweak[cntrl].u.rumble.weak_magnitude = 0xFFFF; |
| 757 | ffweak[cntrl].replay.length = 500; |
| 758 | ffweak[cntrl].replay.delay = 0; |
| 759 | |
| 760 | ioctl(controller[cntrl].event_joystick, EVIOCSFF, &ffweak[cntrl]); |
| 761 | |
| 762 | DebugMessage(M64MSG_INFO, "Rumble activated on N64 joystick #%i", cntrl + 1); |
| 763 | #endif /* __linux__ */ |
| 764 | } |
| 765 | |
| 766 | /****************************************************************** |
| 767 | Function: InitiateControllers |
| 768 | Purpose: This function initialises how each of the controllers |
| 769 | should be handled. |
| 770 | input: - The handle to the main window. |
| 771 | - A controller structure that needs to be filled for |
| 772 | the emulator to know how to handle each controller. |
| 773 | output: none |
| 774 | *******************************************************************/ |
| 775 | EXPORT void CALL InitiateControllers(CONTROL_INFO ControlInfo) |
| 776 | { |
| 777 | int i; |
| 778 | |
| 779 | // reset controllers |
| 780 | memset( controller, 0, sizeof( SController ) * 4 ); |
| 781 | for ( i = 0; i < SDL_NUM_SCANCODES; i++) |
| 782 | { |
| 783 | myKeyState[i] = 0; |
| 784 | } |
| 785 | // set our CONTROL struct pointers to the array that was passed in to this function from the core |
| 786 | // this small struct tells the core whether each controller is plugged in, and what type of pak is connected |
| 787 | for (i = 0; i < 4; i++) |
| 788 | controller[i].control = ControlInfo.Controls + i; |
| 789 | |
| 790 | // read configuration |
| 791 | load_configuration(0); |
| 792 | |
| 793 | for( i = 0; i < 4; i++ ) |
| 794 | { |
| 795 | // test for rumble support for this joystick |
| 796 | InitiateRumble(i); |
| 797 | // if rumble not supported, switch to mempack |
| 798 | if (controller[i].control->Plugin == PLUGIN_RAW && controller[i].event_joystick == 0) |
| 799 | controller[i].control->Plugin = PLUGIN_MEMPAK; |
| 800 | } |
| 801 | |
| 802 | DebugMessage(M64MSG_INFO, "%s version %i.%i.%i initialized.", PLUGIN_NAME, VERSION_PRINTF_SPLIT(PLUGIN_VERSION)); |
| 803 | } |
| 804 | |
| 805 | /****************************************************************** |
| 806 | Function: ReadController |
| 807 | Purpose: To process the raw data in the pif ram that is about to |
| 808 | be read. |
| 809 | input: - Controller Number (0 to 3) and -1 signalling end of |
| 810 | processing the pif ram. |
| 811 | - Pointer of data to be processed. |
| 812 | output: none |
| 813 | note: This function is only needed if the DLL is allowing raw |
| 814 | data. |
| 815 | *******************************************************************/ |
| 816 | EXPORT void CALL ReadController(int Control, unsigned char *Command) |
| 817 | { |
| 818 | #ifdef _DEBUG |
| 819 | if (Command != NULL) |
| 820 | DebugMessage(M64MSG_INFO, "Raw Read (cont=%d): %02X %02X %02X %02X %02X %02X", Control, |
| 821 | Command[0], Command[1], Command[2], Command[3], Command[4], Command[5]); |
| 822 | #endif |
| 823 | } |
| 824 | |
| 825 | /****************************************************************** |
| 826 | Function: RomClosed |
| 827 | Purpose: This function is called when a rom is closed. |
| 828 | input: none |
| 829 | output: none |
| 830 | *******************************************************************/ |
| 831 | EXPORT void CALL RomClosed(void) |
| 832 | { |
| 833 | int i; |
| 834 | |
| 835 | // close joysticks |
| 836 | for( i = 0; i < 4; i++ ) |
| 837 | if( controller[i].joystick ) |
| 838 | { |
| 839 | SDL_JoystickClose( controller[i].joystick ); |
| 840 | controller[i].joystick = NULL; |
| 841 | } |
| 842 | |
| 843 | // quit SDL joystick subsystem |
| 844 | SDL_QuitSubSystem( SDL_INIT_JOYSTICK ); |
| 845 | |
| 846 | // release/ungrab mouse |
| 847 | #if SDL_VERSION_ATLEAST(2,0,0) |
| 848 | #warning SDL mouse grabbing not yet supported with SDL 2.0 |
| 849 | #else |
| 850 | SDL_WM_GrabInput( SDL_GRAB_OFF ); |
| 851 | #endif |
| 852 | SDL_ShowCursor( 1 ); |
| 853 | |
| 854 | romopen = 0; |
| 855 | } |
| 856 | |
| 857 | /****************************************************************** |
| 858 | Function: RomOpen |
| 859 | Purpose: This function is called when a rom is open. (from the |
| 860 | emulation thread) |
| 861 | input: none |
| 862 | output: none |
| 863 | *******************************************************************/ |
| 864 | EXPORT int CALL RomOpen(void) |
| 865 | { |
| 866 | int i; |
| 867 | |
| 868 | // init SDL joystick subsystem |
| 869 | if( !SDL_WasInit( SDL_INIT_JOYSTICK ) ) |
| 870 | if( SDL_InitSubSystem( SDL_INIT_JOYSTICK ) == -1 ) |
| 871 | { |
| 872 | DebugMessage(M64MSG_ERROR, "Couldn't init SDL joystick subsystem: %s", SDL_GetError() ); |
| 873 | return 0; |
| 874 | } |
| 875 | |
| 876 | // open joysticks |
| 877 | for( i = 0; i < 4; i++ ) |
| 878 | if( controller[i].device >= 0 ) |
| 879 | { |
| 880 | controller[i].joystick = SDL_JoystickOpen( controller[i].device ); |
| 881 | if( controller[i].joystick == NULL ) |
| 882 | DebugMessage(M64MSG_WARNING, "Couldn't open joystick for controller #%d: %s", i + 1, SDL_GetError() ); |
| 883 | } |
| 884 | else |
| 885 | controller[i].joystick = NULL; |
| 886 | |
| 887 | // grab mouse |
| 888 | if (controller[0].mouse || controller[1].mouse || controller[2].mouse || controller[3].mouse) |
| 889 | { |
| 890 | #if SDL_VERSION_ATLEAST(2,0,0) |
| 891 | #warning SDL mouse grabbing not yet supported with SDL 2.0 |
| 892 | #else |
| 893 | SDL_ShowCursor( 0 ); |
| 894 | if (SDL_WM_GrabInput( SDL_GRAB_ON ) != SDL_GRAB_ON) |
| 895 | { |
| 896 | DebugMessage(M64MSG_WARNING, "Couldn't grab input! Mouse support won't work!"); |
| 897 | } |
| 898 | #endif |
| 899 | } |
| 900 | |
| 901 | romopen = 1; |
| 902 | return 1; |
| 903 | } |
| 904 | |
| 905 | /****************************************************************** |
| 906 | Function: SDL_KeyDown |
| 907 | Purpose: To pass the SDL_KeyDown message from the emulator to the |
| 908 | plugin. |
| 909 | input: keymod and keysym of the SDL_KEYDOWN message. |
| 910 | output: none |
| 911 | *******************************************************************/ |
| 912 | EXPORT void CALL SDL_KeyDown(int keymod, int keysym) |
| 913 | { |
| 914 | myKeyState[keysym] = 1; |
| 915 | } |
| 916 | |
| 917 | /****************************************************************** |
| 918 | Function: SDL_KeyUp |
| 919 | Purpose: To pass the SDL_KeyUp message from the emulator to the |
| 920 | plugin. |
| 921 | input: keymod and keysym of the SDL_KEYUP message. |
| 922 | output: none |
| 923 | *******************************************************************/ |
| 924 | EXPORT void CALL SDL_KeyUp(int keymod, int keysym) |
| 925 | { |
| 926 | myKeyState[keysym] = 0; |
| 927 | } |
| 928 | |