| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2004 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with this library; if not, write to the Free |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| #include "SDL_config.h" |
| |
| /* |
| File added by Alan Buckley (alan_baa@hotmail.com) for RISC OS compatability |
| 27 March 2003 |
| |
| Implements keyboard setup, event pump and keyboard and mouse polling |
| */ |
| |
| |
| #include "SDL.h" |
| #include "../../timer/SDL_timer_c.h" |
| #include "../../events/SDL_sysevents.h" |
| #include "../../events/SDL_events_c.h" |
| #include "../SDL_cursor_c.h" |
| #include "SDL_riscosvideo.h" |
| #include "SDL_riscosevents_c.h" |
| |
| #include "memory.h" |
| #include "stdlib.h" |
| #include "ctype.h" |
| |
| #include "kernel.h" |
| #include "swis.h" |
| |
| /* The translation table from a RISC OS internal key numbers to a SDL keysym */ |
| static SDLKey RO_keymap[SDLK_LAST]; |
| |
| /* RISC OS Key codes */ |
| #define ROKEY_SHIFT 0 |
| #define ROKEY_CTRL 1 |
| #define ROKEY_ALT 2 |
| /* Left shift is first key we will check for */ |
| #define ROKEY_LEFT_SHIFT 3 |
| |
| /* Need to ignore mouse buttons as they are processed separately */ |
| #define ROKEY_LEFT_MOUSE 9 |
| #define ROKEY_CENTRE_MOUSE 10 |
| #define ROKEY_RIGHT_MOUSE 11 |
| |
| /* No key has been pressed return value*/ |
| #define ROKEY_NONE 255 |
| |
| /* Id of last key in keyboard */ |
| #define ROKEY_LAST_KEY 124 |
| |
| /* Size of array for all keys */ |
| #define ROKEYBD_ARRAYSIZE 125 |
| |
| static char RO_pressed[ROKEYBD_ARRAYSIZE]; |
| |
| static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed); |
| |
| void RISCOS_PollMouse(_THIS); |
| void RISCOS_PollKeyboard(); |
| |
| void RISCOS_PollMouseHelper(_THIS, int fullscreen); |
| |
| #if SDL_THREADS_DISABLED |
| extern void DRenderer_FillBuffers(); |
| |
| /* Timer running function */ |
| extern void RISCOS_CheckTimer(); |
| |
| #endif |
| |
| void FULLSCREEN_PumpEvents(_THIS) |
| { |
| /* Current implementation requires keyboard and mouse polling */ |
| RISCOS_PollKeyboard(); |
| RISCOS_PollMouse(this); |
| #if SDL_THREADS_DISABLED |
| // DRenderer_FillBuffers(); |
| if (SDL_timer_running) RISCOS_CheckTimer(); |
| #endif |
| } |
| |
| |
| void RISCOS_InitOSKeymap(_THIS) |
| { |
| int i; |
| |
| /* Map the VK keysyms */ |
| for ( i=0; i<SDL_arraysize(RO_keymap); ++i ) |
| RO_keymap[i] = SDLK_UNKNOWN; |
| |
| RO_keymap[3] = SDLK_LSHIFT; |
| RO_keymap[4] = SDLK_LCTRL; |
| RO_keymap[5] = SDLK_LALT; |
| RO_keymap[6] = SDLK_RSHIFT; |
| RO_keymap[7] = SDLK_RCTRL; |
| RO_keymap[8] = SDLK_RALT; |
| RO_keymap[16] = SDLK_q; |
| RO_keymap[17] = SDLK_3; |
| RO_keymap[18] = SDLK_4; |
| RO_keymap[19] = SDLK_5; |
| RO_keymap[20] = SDLK_F4; |
| RO_keymap[21] = SDLK_8; |
| RO_keymap[22] = SDLK_F7; |
| RO_keymap[23] = SDLK_MINUS, |
| RO_keymap[25] = SDLK_LEFT; |
| RO_keymap[26] = SDLK_KP6; |
| RO_keymap[27] = SDLK_KP7; |
| RO_keymap[28] = SDLK_F11; |
| RO_keymap[29] = SDLK_F12; |
| RO_keymap[30] = SDLK_F10; |
| RO_keymap[31] = SDLK_SCROLLOCK; |
| RO_keymap[32] = SDLK_PRINT; |
| RO_keymap[33] = SDLK_w; |
| RO_keymap[34] = SDLK_e; |
| RO_keymap[35] = SDLK_t; |
| RO_keymap[36] = SDLK_7; |
| RO_keymap[37] = SDLK_i; |
| RO_keymap[38] = SDLK_9; |
| RO_keymap[39] = SDLK_0; |
| RO_keymap[41] = SDLK_DOWN; |
| RO_keymap[42] = SDLK_KP8; |
| RO_keymap[43] = SDLK_KP9; |
| RO_keymap[44] = SDLK_BREAK; |
| RO_keymap[45] = SDLK_BACKQUOTE; |
| /* RO_keymap[46] = SDLK_currency; TODO: Figure out if this has a value */ |
| RO_keymap[47] = SDLK_BACKSPACE; |
| RO_keymap[48] = SDLK_1; |
| RO_keymap[49] = SDLK_2; |
| RO_keymap[50] = SDLK_d; |
| RO_keymap[51] = SDLK_r; |
| RO_keymap[52] = SDLK_6; |
| RO_keymap[53] = SDLK_u; |
| RO_keymap[54] = SDLK_o; |
| RO_keymap[55] = SDLK_p; |
| RO_keymap[56] = SDLK_LEFTBRACKET; |
| RO_keymap[57] = SDLK_UP; |
| RO_keymap[58] = SDLK_KP_PLUS; |
| RO_keymap[59] = SDLK_KP_MINUS; |
| RO_keymap[60] = SDLK_KP_ENTER; |
| RO_keymap[61] = SDLK_INSERT; |
| RO_keymap[62] = SDLK_HOME; |
| RO_keymap[63] = SDLK_PAGEUP; |
| RO_keymap[64] = SDLK_CAPSLOCK; |
| RO_keymap[65] = SDLK_a; |
| RO_keymap[66] = SDLK_x; |
| RO_keymap[67] = SDLK_f; |
| RO_keymap[68] = SDLK_y; |
| RO_keymap[69] = SDLK_j; |
| RO_keymap[70] = SDLK_k; |
| RO_keymap[72] = SDLK_SEMICOLON; |
| RO_keymap[73] = SDLK_RETURN; |
| RO_keymap[74] = SDLK_KP_DIVIDE; |
| RO_keymap[76] = SDLK_KP_PERIOD; |
| RO_keymap[77] = SDLK_NUMLOCK; |
| RO_keymap[78] = SDLK_PAGEDOWN; |
| RO_keymap[79] = SDLK_QUOTE; |
| RO_keymap[81] = SDLK_s; |
| RO_keymap[82] = SDLK_c; |
| RO_keymap[83] = SDLK_g; |
| RO_keymap[84] = SDLK_h; |
| RO_keymap[85] = SDLK_n; |
| RO_keymap[86] = SDLK_l; |
| RO_keymap[87] = SDLK_SEMICOLON; |
| RO_keymap[88] = SDLK_RIGHTBRACKET; |
| RO_keymap[89] = SDLK_DELETE; |
| RO_keymap[90] = SDLK_KP_MINUS; |
| RO_keymap[91] = SDLK_KP_MULTIPLY; |
| RO_keymap[93] = SDLK_EQUALS; |
| RO_keymap[94] = SDLK_BACKSLASH; |
| RO_keymap[96] = SDLK_TAB; |
| RO_keymap[97] = SDLK_z; |
| RO_keymap[98] = SDLK_SPACE; |
| RO_keymap[99] = SDLK_v; |
| RO_keymap[100] = SDLK_b; |
| RO_keymap[101] = SDLK_m; |
| RO_keymap[102] = SDLK_COMMA; |
| RO_keymap[103] = SDLK_PERIOD; |
| RO_keymap[104] = SDLK_SLASH; |
| RO_keymap[105] = SDLK_END; |
| RO_keymap[106] = SDLK_KP0; |
| RO_keymap[107] = SDLK_KP1; |
| RO_keymap[108] = SDLK_KP3; |
| RO_keymap[112] = SDLK_ESCAPE; |
| RO_keymap[113] = SDLK_F1; |
| RO_keymap[114] = SDLK_F2; |
| RO_keymap[115] = SDLK_F3; |
| RO_keymap[116] = SDLK_F5; |
| RO_keymap[117] = SDLK_F6; |
| RO_keymap[118] = SDLK_F8; |
| RO_keymap[119] = SDLK_F9; |
| RO_keymap[120] = SDLK_HASH; |
| RO_keymap[121] = SDLK_RIGHT; |
| RO_keymap[122] = SDLK_KP4; |
| RO_keymap[123] = SDLK_KP5; |
| RO_keymap[124] = SDLK_KP2; |
| |
| SDL_memset(RO_pressed, 0, ROKEYBD_ARRAYSIZE); |
| } |
| |
| |
| /* Variable for mouse relative processing */ |
| int mouse_relative = 0; |
| |
| /* Check to see if we need to enter or leave mouse relative mode */ |
| |
| void RISCOS_CheckMouseMode(_THIS) |
| { |
| /* If the mouse is hidden and input is grabbed, we use relative mode */ |
| if ( !(SDL_cursorstate & CURSOR_VISIBLE) && |
| (this->input_grab != SDL_GRAB_OFF) ) { |
| mouse_relative = 1; |
| } else { |
| mouse_relative = 0; |
| } |
| } |
| |
| |
| void RISCOS_PollMouse(_THIS) |
| { |
| RISCOS_PollMouseHelper(this, 1); |
| } |
| |
| extern int mouseInWindow; |
| |
| void WIMP_PollMouse(_THIS) |
| { |
| /* Only poll when mouse is over the window */ |
| if (!mouseInWindow) return; |
| |
| RISCOS_PollMouseHelper(this, 0); |
| } |
| |
| /* Static variables so only changes are reported */ |
| static Sint16 last_x = -1, last_y = -1; |
| static int last_buttons = 0; |
| |
| /* Share routine between WIMP and FULLSCREEN for polling mouse and |
| passing on events */ |
| void RISCOS_PollMouseHelper(_THIS, int fullscreen) |
| { |
| _kernel_swi_regs regs; |
| static int starting = 1; |
| |
| if (_kernel_swi(OS_Mouse, ®s, ®s) == NULL) |
| { |
| Sint16 new_x = regs.r[0]; /* Initialy get as OS units */ |
| Sint16 new_y = regs.r[1]; |
| |
| /* Discard mouse events until they let go of the mouse after starting */ |
| if (starting && regs.r[2] != 0) |
| return; |
| else |
| starting = 0; |
| |
| if (new_x != last_x || new_y != last_y || last_buttons != regs.r[2]) |
| { |
| /* Something changed so generate appropriate events */ |
| int topLeftX, topLeftY; /* Top left OS units */ |
| int x, y; /* Mouse position in SDL pixels */ |
| |
| if (fullscreen) |
| { |
| topLeftX = 0; |
| topLeftY = (this->hidden->height << this->hidden->yeig) - 1; |
| } else |
| { |
| int window_state[9]; |
| |
| /* Get current window state */ |
| window_state[0] = this->hidden->window_handle; |
| regs.r[1] = (unsigned int)window_state; |
| _kernel_swi(Wimp_GetWindowState, ®s, ®s); |
| |
| topLeftX = window_state[1]; |
| topLeftY = window_state[4]; |
| } |
| |
| /* Convert co-ordinates to workspace */ |
| x = new_x - topLeftX; |
| y = topLeftY - new_y; /* Y goes from top of window/screen */ |
| |
| /* Convert OS units to pixels */ |
| x >>= this->hidden->xeig; |
| y >>= this->hidden->yeig; |
| |
| if (last_x != new_x || last_y != new_y) |
| { |
| if (mouse_relative) |
| { |
| int centre_x = SDL_VideoSurface->w/2; |
| int centre_y = SDL_VideoSurface->h/2; |
| |
| if (centre_x != x || centre_y != y) |
| { |
| if (SDL_VideoSurface) SDL_PrivateMouseMotion(0,1,x - centre_x, y - centre_y); |
| last_x = topLeftX + (centre_x << this->hidden->xeig); |
| last_y = topLeftY - (centre_y << this->hidden->yeig); |
| |
| /* Re-centre the mouse pointer, so we still get relative |
| movement when the mouse is at the edge of the window |
| or screen. |
| */ |
| { |
| unsigned char block[5]; |
| |
| block[0] = 3; /* OSWORD move pointer sub-reason code */ |
| block[1] = last_x & 0xFF; |
| block[2] = (last_x >> 8) & 0xFF; |
| block[3] = last_y & 0xFF; |
| block[4] = (last_y >> 8) & 0xFF; |
| |
| regs.r[0] = 21; /* OSWORD pointer stuff code */ |
| regs.r[1] = (int)block; |
| _kernel_swi(OS_Word, ®s, ®s); |
| } |
| } |
| } else |
| { |
| last_x = new_x; |
| last_y = new_y; |
| SDL_PrivateMouseMotion(0,0,x,y); |
| } |
| } |
| |
| if (last_buttons != regs.r[2]) |
| { |
| int changed = last_buttons ^ regs.r[2]; |
| last_buttons = regs.r[2]; |
| if (changed & 4) SDL_PrivateMouseButton((last_buttons & 4) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_LEFT, 0, 0); |
| if (changed & 2) SDL_PrivateMouseButton((last_buttons & 2) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_MIDDLE, 0, 0); |
| if (changed & 1) SDL_PrivateMouseButton((last_buttons & 1) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_RIGHT, 0, 0); |
| } |
| } |
| } |
| } |
| |
| void RISCOS_PollKeyboard() |
| { |
| int which_key = ROKEY_LEFT_SHIFT; |
| int j; |
| int min_key, max_key; |
| SDL_keysym key; |
| |
| /* Scan the keyboard to see what is pressed */ |
| while (which_key <= ROKEY_LAST_KEY) |
| { |
| which_key = (_kernel_osbyte(121, which_key, 0) & 0xFF); |
| if (which_key != ROKEY_NONE) |
| { |
| switch(which_key) |
| { |
| /* Skip over mouse keys */ |
| case ROKEY_LEFT_MOUSE: |
| case ROKEY_CENTRE_MOUSE: |
| case ROKEY_RIGHT_MOUSE: |
| which_key = ROKEY_RIGHT_MOUSE; |
| break; |
| |
| /* Ignore keys that cause 2 internal number to be generated */ |
| case 71: case 24: case 87: case 40: |
| break; |
| |
| /* Ignore break as it can be latched on */ |
| case 44: |
| break; |
| |
| default: |
| RO_pressed[which_key] += 2; |
| break; |
| } |
| which_key++; |
| } |
| } |
| |
| /* Generate key released messages */ |
| min_key = ROKEY_LAST_KEY+1; |
| max_key = ROKEY_LEFT_SHIFT; |
| |
| for (j = ROKEY_LEFT_SHIFT; j <= ROKEY_LAST_KEY; j++) |
| { |
| if (RO_pressed[j]) |
| { |
| if (RO_pressed[j] == 1) |
| { |
| RO_pressed[j] = 0; |
| SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(j,&key,0)); |
| } else |
| { |
| if (j < min_key) min_key = j; |
| if (j > max_key) max_key = j; |
| } |
| } |
| } |
| |
| /* Generate key pressed messages */ |
| for (j = min_key; j <= max_key; j++) |
| { |
| if (RO_pressed[j]) |
| { |
| if (RO_pressed[j] == 2) |
| { |
| SDL_PrivateKeyboard(SDL_PRESSED,TranslateKey(j,&key,1)); |
| } |
| RO_pressed[j] = 1; |
| } |
| } |
| } |
| |
| static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed) |
| { |
| /* Set the keysym information */ |
| keysym->scancode = (unsigned char) intkey; |
| keysym->sym = RO_keymap[intkey]; |
| keysym->mod = KMOD_NONE; |
| keysym->unicode = 0; |
| if ( pressed && SDL_TranslateUNICODE ) |
| { |
| int state; |
| int ch; |
| |
| state = (_kernel_osbyte(202, 0, 255) & 0xFF); |
| |
| /*TODO: Take into account other keyboard layouts */ |
| |
| ch = keysym->sym; /* This should handle most unshifted keys */ |
| |
| if (intkey < 9 || ch == SDLK_UNKNOWN) |
| { |
| ch = 0; |
| |
| } else if (state & 64) /* Control on */ |
| { |
| ch = ch & 31; |
| |
| } else |
| { |
| int topOfKey = 0; |
| if (state & 8) /* Shift on */ |
| { |
| topOfKey = 1; |
| } |
| |
| if ((state & 16) == 0) /* Caps lock is on */ |
| { |
| if (ch >= SDLK_a && ch <= SDLK_z) |
| { |
| if ((state & 128) == 0) /* Shift Enable off */ |
| { |
| /* All letter become upper case */ |
| topOfKey = 1; |
| } else |
| { |
| /* Shift+Letters gives lower case */ |
| topOfKey = 1 - topOfKey; |
| } |
| } |
| } |
| |
| if (topOfKey) |
| { |
| /* Key produced with shift held down */ |
| |
| /* Letters just give upper case version */ |
| if (ch >= SDLK_a && ch <= SDLK_z) ch = toupper(ch); |
| else |
| { |
| switch(ch) |
| { |
| case SDLK_HASH: ch = '~'; break; |
| case SDLK_QUOTE: ch = '@'; break; |
| case SDLK_COMMA: ch = '<'; break; |
| case SDLK_MINUS: ch = '_'; break; |
| case SDLK_PERIOD: ch = '>'; break; |
| case SDLK_SLASH: ch = '?'; break; |
| |
| case SDLK_0: ch = ')'; break; |
| case SDLK_1: ch = '!'; break; |
| case SDLK_2: ch = '"'; break; |
| case SDLK_3: ch = '£'; break; |
| case SDLK_4: ch = '$'; break; |
| case SDLK_5: ch = '%'; break; |
| case SDLK_6: ch = '^'; break; |
| case SDLK_7: ch = '&'; break; |
| case SDLK_8: ch = '*'; break; |
| case SDLK_9: ch = '('; break; |
| |
| case SDLK_SEMICOLON: ch = ':'; break; |
| case SDLK_EQUALS: ch = '+'; break; |
| case SDLK_LEFTBRACKET: ch = '{'; break; |
| case SDLK_BACKSLASH: ch = '|'; break; |
| case SDLK_RIGHTBRACKET: ch = '}'; break; |
| case SDLK_BACKQUOTE: ch = '¬'; break; |
| |
| default: |
| ch = 0; /* Map to zero character if we don't understand it */ |
| break; |
| } |
| } |
| |
| } else if (ch > 126) |
| { |
| /* SDL key code < 126 map directly onto their Unicode equivalents */ |
| /* Keypad 0 to 9 maps to numeric equivalent */ |
| if (ch >= SDLK_KP0 && ch <= SDLK_KP9) ch = ch - SDLK_KP0 + '0'; |
| else |
| { |
| /* Following switch maps other keys that produce an Ascii value */ |
| switch(ch) |
| { |
| case SDLK_KP_PERIOD: ch = '.'; break; |
| case SDLK_KP_DIVIDE: ch = '/'; break; |
| case SDLK_KP_MULTIPLY: ch = '*'; break; |
| case SDLK_KP_MINUS: ch = '-'; break; |
| case SDLK_KP_PLUS: ch = '+'; break; |
| case SDLK_KP_EQUALS: ch = '='; break; |
| |
| default: |
| /* If we don't know what it is set the Unicode to 0 */ |
| ch = 0; |
| break; |
| } |
| } |
| } |
| } |
| |
| keysym->unicode = ch; |
| } |
| return(keysym); |
| } |
| |
| /* end of SDL_riscosevents.c ... */ |
| |