/* 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 ... */ /* vi: set ts=4 sw=4 expandtab: */