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author | Eugene Sandulenko | 2006-10-06 19:01:39 +0000 |
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committer | Eugene Sandulenko | 2006-10-06 19:01:39 +0000 |
commit | 3d84f1104688db0b23b6fe9ccc86b587ac597837 (patch) | |
tree | df9c7c4fdbfbbb8c1aa67d6e5f4ffc9bcdac9fb4 /backends/platform/gp2x/events.cpp | |
parent | e75bea0c8f454bbeac842414a7ab8c4c77321801 (diff) | |
download | scummvm-rg350-3d84f1104688db0b23b6fe9ccc86b587ac597837.tar.gz scummvm-rg350-3d84f1104688db0b23b6fe9ccc86b587ac597837.tar.bz2 scummvm-rg350-3d84f1104688db0b23b6fe9ccc86b587ac597837.zip |
Patch #1432376: "Very basic GP2X Backend"
svn-id: r24144
Diffstat (limited to 'backends/platform/gp2x/events.cpp')
-rw-r--r-- | backends/platform/gp2x/events.cpp | 657 |
1 files changed, 657 insertions, 0 deletions
diff --git a/backends/platform/gp2x/events.cpp b/backends/platform/gp2x/events.cpp new file mode 100644 index 0000000000..f3d5ef0d58 --- /dev/null +++ b/backends/platform/gp2x/events.cpp @@ -0,0 +1,657 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2001 Ludvig Strigeus + * Copyright (C) 2001-2006 The ScummVM project + * Copyright (C) 2005-2006 John Willis (Portions of the GP2X Backend) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program 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 General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +/* + * GP2X: Event Handling. + * + */ + +#include "backends/platform/gp2x/gp2x-common.h" +#include "backends/platform/gp2x/gp2x-hw.h" +#include "common/util.h" + +// FIXME move joystick defines out and replace with confile file options +// we should really allow users to map any key to a joystick button +#define JOY_DEADZONE 2200 + +// #define JOY_INVERT_Y +#define JOY_XAXIS 0 +#define JOY_YAXIS 1 + +// GP2X Stick Buttons (Note: The Stick is read as a set of buttons not a HAT type of setup). +#define JOY_BUT_LMOUSE 0x0D +#define JOY_BUT_RMOUSE 0x0E + +#define JOY_BUT_RETURN 0x08 +#define JOY_BUT_ESCAPE 0x09 +#define JOY_BUT_F5 0x0B +#define JOY_BUT_SPACE 0x0F +#define JOY_BUT_TALKUP 0x10 +#define JOY_BUT_TALKDN 0x11 +#define JOY_BUT_ZERO 0x12 + +#define JOY_BUT_COMB 0x0A +#define JOY_BUT_EXIT 0x12 +#define JOY_BUT_PERIOD 0x0C + + +//TODO: Quick hack 101 ;-) Clean this up, +#define TRUE 1 +#define FALSE 0 + +static int mapKey(SDLKey key, SDLMod mod, Uint16 unicode) +{ + if (key >= SDLK_F1 && key <= SDLK_F9) { + return key - SDLK_F1 + 315; + } else if (key >= SDLK_KP0 && key <= SDLK_KP9) { + return key - SDLK_KP0 + '0'; + } else if (key >= SDLK_UP && key <= SDLK_PAGEDOWN) { + return key; + } else if (unicode) { + return unicode; + } else if (key >= 'a' && key <= 'z' && mod & KMOD_SHIFT) { + return key & ~0x20; + } else if (key >= SDLK_NUMLOCK && key <= SDLK_EURO) { + return 0; + } + return key; +} + +void OSystem_GP2X::fillMouseEvent(Event &event, int x, int y) { + event.mouse.x = x; + event.mouse.y = y; + + // Update the "keyboard mouse" coords + _km.x = x; + _km.y = y; + + // Adjust for the screen scaling + if (!_overlayVisible) { + event.mouse.x /= _scaleFactor; + event.mouse.y /= _scaleFactor; + if (_adjustAspectRatio) + event.mouse.y = aspect2Real(event.mouse.y); + } +} + +void OSystem_GP2X::handleKbdMouse() { + uint32 curTime = getMillis(); + if (curTime >= _km.last_time + _km.delay_time) { + _km.last_time = curTime; + if (_km.x_down_count == 1) { + _km.x_down_time = curTime; + _km.x_down_count = 2; + } + if (_km.y_down_count == 1) { + _km.y_down_time = curTime; + _km.y_down_count = 2; + } + + if (_km.x_vel || _km.y_vel) { + if (_km.x_down_count) { + if (curTime > _km.x_down_time + _km.delay_time * 12) { + if (_km.x_vel > 0) + _km.x_vel++; + else + _km.x_vel--; + } else if (curTime > _km.x_down_time + _km.delay_time * 8) { + if (_km.x_vel > 0) + _km.x_vel = 5; + else + _km.x_vel = -5; + } + } + if (_km.y_down_count) { + if (curTime > _km.y_down_time + _km.delay_time * 12) { + if (_km.y_vel > 0) + _km.y_vel++; + else + _km.y_vel--; + } else if (curTime > _km.y_down_time + _km.delay_time * 8) { + if (_km.y_vel > 0) + _km.y_vel = 5; + else + _km.y_vel = -5; + } + } + + _km.x += _km.x_vel; + _km.y += _km.y_vel; + + if (_km.x < 0) { + _km.x = 0; + _km.x_vel = -1; + _km.x_down_count = 1; + } else if (_km.x > _km.x_max) { + _km.x = _km.x_max; + _km.x_vel = 1; + _km.x_down_count = 1; + } + + if (_km.y < 0) { + _km.y = 0; + _km.y_vel = -1; + _km.y_down_count = 1; + } else if (_km.y > _km.y_max) { + _km.y = _km.y_max; + _km.y_vel = 1; + _km.y_down_count = 1; + } + + SDL_WarpMouse(_km.x, _km.y); + } + } +} + +static byte SDLModToOSystemKeyFlags(SDLMod mod) { + byte b = 0; +#ifdef LINUPY + // Yopy has no ALT key, steal the SHIFT key + // (which isn't used much anyway) + if (mod & KMOD_SHIFT) + b |= OSystem::KBD_ALT; +#else + if (mod & KMOD_SHIFT) + b |= OSystem::KBD_SHIFT; + if (mod & KMOD_ALT) + b |= OSystem::KBD_ALT; +#endif + if (mod & KMOD_CTRL) + b |= OSystem::KBD_CTRL; + + return b; +} + +void OSystem_GP2X::moveStick() { + bool stickBtn[32]; + + memcpy(stickBtn, _stickBtn, sizeof(stickBtn)); + + if((stickBtn[0])||(stickBtn[2])||(stickBtn[4])||(stickBtn[6])) + stickBtn[1] = stickBtn[3] = stickBtn[5] = stickBtn[7] = 0; + + if((stickBtn[1])||(stickBtn[2])||(stickBtn[3])){ + if(_km.x_down_count!=2){ + _km.x_vel = -1; + _km.x_down_count = 1; + }else + _km.x_vel = -4; + } else if((stickBtn[5])||(stickBtn[6])||(stickBtn[7])){ + if(_km.x_down_count!=2){ + _km.x_vel = 1; + _km.x_down_count = 1; + }else + _km.x_vel = 4; + } + else{ + _km.x_vel = 0; + _km.x_down_count = 0; + } + + + if((stickBtn[0])||(stickBtn[1])||(stickBtn[7])){ + if(_km.y_down_count!=2){ + _km.y_vel = -1; + _km.y_down_count = 1; + }else + _km.y_vel = -4; + } else if((stickBtn[3])||(stickBtn[4])||(stickBtn[5])){ + if(_km.y_down_count!=2){ + _km.y_vel = 1; + _km.y_down_count = 1; + }else + _km.y_vel = 4; + } + else{ + _km.y_vel = 0; + _km.y_down_count = 0; + } +} + + //Quick default button states for modifier. + + //int GP2X_BUTTON_STATE_UP = FALSE; + //int GP2X_BUTTON_STATE_DOWN = FALSE; + //int GP2X_BUTTON_STATE_LEFT = FALSE; + //int GP2X_BUTTON_STATE_RIGHT = FALSE; + //int GP2X_BUTTON_STATE_UPLEFT = FALSE; + //int GP2X_BUTTON_STATE_UPRIGHT = FALSE; + //int GP2X_BUTTON_STATE_DOWNLEFT = FALSE; + //int GP2X_BUTTON_STATE_DOWNRIGHT = FALSE; + //int GP2X_BUTTON_STATE_CLICK = FALSE; + //int GP2X_BUTTON_STATE_A = FALSE; + //int GP2X_BUTTON_STATE_B = FALSE; + //int GP2X_BUTTON_STATE_Y = FALSE; + //int GP2X_BUTTON_STATE_X = FALSE; + int GP2X_BUTTON_STATE_L = FALSE; + //int GP2X_BUTTON_STATE_R = FALSE; + //int GP2X_BUTTON_STATE_START = FALSE; + //int GP2X_BUTTON_STATE_SELECT = FALSE; + //int GP2X_BUTTON_STATE_VOLUP = FALSE; + //int GP2X_BUTTON_STATE_VOLDOWN = FALSE; + +bool OSystem_GP2X::pollEvent(Event &event) { + SDL_Event ev; + int axis; + byte b = 0; + + handleKbdMouse(); + + // If the screen mode changed, send an EVENT_SCREEN_CHANGED + if (_modeChanged) { + _modeChanged = false; + event.type = EVENT_SCREEN_CHANGED; + _screenChangeCount++; + return true; + } + + // GP2X Input mappings. + + /* + Single Button + + Movement: + + GP2X_BUTTON_UP Cursor Up + GP2X_BUTTON_DOWN Cursor Down + GP2X_BUTTON_LEFT Cursor Left + GP2X_BUTTON_RIGHT Cursor Right + + TODO: Add extra directions to cursor mappings. + + GP2X_BUTTON_UPLEFT Cursor Up Left + GP2X_BUTTON_UPRIGHT Cursor Up Right + GP2X_BUTTON_DOWNLEFT Cursor Down Left + GP2X_BUTTON_DOWNRIGHT Cursor Down Right + + Button Emulation: + + GP2X_BUTTON_CLICK Left Mouse Click + GP2X_BUTTON_A . (Period) + GP2X_BUTTON_B Left Mouse Click + GP2X_BUTTON_Y Space Bar + GP2X_BUTTON_X Right Mouse Click + GP2X_BUTTON_L Combo Modifier (Left Trigger) + GP2X_BUTTON_R F5 (Right Trigger) + GP2X_BUTTON_START Return + GP2X_BUTTON_SELECT Escape + GP2X_BUTTON_VOLUP /dev/mixer Global Volume Up + GP2X_BUTTON_VOLDOWN /dev/mixer Global Volume Down + + Combos: + + GP2X_BUTTON_VOLUP & GP2X_BUTTON_VOLDOWN 0 (For Monkey 2 CP) + GP2X_BUTTON_L & GP2X_BUTTON_SELECT EVENT_QUIT (Calls Sync() to make sure SD is flushed) + GP2X_BUTTON_L & GP2X_BUTTON_Y Toggles setZoomOnMouse() for larger then 320*240 games to scale to the point + raduis. + */ + + while(SDL_PollEvent(&ev)) { + + switch(ev.type) { + case SDL_KEYDOWN:{ + b = event.kbd.flags = SDLModToOSystemKeyFlags(SDL_GetModState()); + + // Alt-Return and Alt-Enter toggle full screen mode + if (b == KBD_ALT && (ev.key.keysym.sym == SDLK_RETURN + || ev.key.keysym.sym == SDLK_KP_ENTER)) { + setFullscreenMode(!_fullscreen); + break; + } + + // Alt-S: Create a screenshot + if (b == KBD_ALT && ev.key.keysym.sym == 's') { + char filename[20]; + + for (int n = 0;; n++) { + SDL_RWops *file; + + sprintf(filename, "scummvm%05d.bmp", n); + file = SDL_RWFromFile(filename, "r"); + if (!file) + break; + SDL_RWclose(file); + } + if (saveScreenshot(filename)) + printf("Saved '%s'\n", filename); + else + printf("Could not save screenshot!\n"); + break; + } + + // Ctrl-m toggles mouse capture + //if (b == KBD_CTRL && ev.key.keysym.sym == 'm') { + // toggleMouseGrab(); + // break; + //} + +//#ifdef MACOSX +// // On Macintosh', Cmd-Q quits +// if ((ev.key.keysym.mod & KMOD_META) && ev.key.keysym.sym == 'q') { +// event.type = EVENT_QUIT; +// return true; +// } +//#elif defined(UNIX) +// // On other unices, Control-Q quits +// if ((ev.key.keysym.mod & KMOD_CTRL) && ev.key.keysym.sym == 'q') { +// event.type = EVENT_QUIT; +// return true; +// } +//#else +// // Ctrl-z and Alt-X quit +// if ((b == KBD_CTRL && ev.key.keysym.sym == 'z') || (b == KBD_ALT && ev.key.keysym.sym == 'x')) { +// event.type = EVENT_QUIT; +// return true; +// } +//#endif +// +// // Ctrl-Alt-<key> will change the GFX mode +// if ((b & (KBD_CTRL|KBD_ALT)) == (KBD_CTRL|KBD_ALT)) { +// +// handleScalerHotkeys(ev.key); +// break; +// } + const bool event_complete = remapKey(ev,event); + + if (event_complete) + return true; + + event.type = EVENT_KEYDOWN; + event.kbd.keycode = ev.key.keysym.sym; + event.kbd.ascii = mapKey(ev.key.keysym.sym, ev.key.keysym.mod, ev.key.keysym.unicode); + + return true; + } + case SDL_KEYUP: + { + const bool event_complete = remapKey(ev,event); + + if (event_complete) + return true; + + event.type = EVENT_KEYUP; + event.kbd.keycode = ev.key.keysym.sym; + event.kbd.ascii = mapKey(ev.key.keysym.sym, ev.key.keysym.mod, ev.key.keysym.unicode); + b = event.kbd.flags = SDLModToOSystemKeyFlags(SDL_GetModState()); + + // Ctrl-Alt-<key> will change the GFX mode + if ((b & (KBD_CTRL|KBD_ALT)) == (KBD_CTRL|KBD_ALT)) { + // Swallow these key up events + break; + } + + return true; + } + case SDL_MOUSEMOTION: + event.type = EVENT_MOUSEMOVE; + fillMouseEvent(event, ev.motion.x, ev.motion.y); + + setMousePos(event.mouse.x, event.mouse.y); + return true; + + case SDL_MOUSEBUTTONDOWN: + if (ev.button.button == SDL_BUTTON_LEFT) + event.type = EVENT_LBUTTONDOWN; + else if (ev.button.button == SDL_BUTTON_RIGHT) + event.type = EVENT_RBUTTONDOWN; +#if defined(SDL_BUTTON_WHEELUP) && defined(SDL_BUTTON_WHEELDOWN) + else if (ev.button.button == SDL_BUTTON_WHEELUP) + event.type = EVENT_WHEELUP; + else if (ev.button.button == SDL_BUTTON_WHEELDOWN) + event.type = EVENT_WHEELDOWN; +#endif + else + break; + + fillMouseEvent(event, ev.button.x, ev.button.y); + + return true; + + case SDL_MOUSEBUTTONUP: + if (ev.button.button == SDL_BUTTON_LEFT) + event.type = EVENT_LBUTTONUP; + else if (ev.button.button == SDL_BUTTON_RIGHT) + event.type = EVENT_RBUTTONUP; + else + break; + fillMouseEvent(event, ev.button.x, ev.button.y); + + return true; + + // GP2X Button mapings. Main code + + case SDL_JOYBUTTONDOWN: + _stickBtn[ev.jbutton.button] = 1; + if (ev.jbutton.button == JOY_BUT_LMOUSE) { + event.type = EVENT_LBUTTONDOWN; + fillMouseEvent(event, _km.x, _km.y); + } else if (ev.jbutton.button == GP2X_BUTTON_CLICK) { + event.type = EVENT_LBUTTONDOWN; + fillMouseEvent(event, _km.x, _km.y); + } else if (ev.jbutton.button == JOY_BUT_RMOUSE) { + event.type = EVENT_RBUTTONDOWN; + fillMouseEvent(event, _km.x, _km.y); + } else if (_stickBtn[JOY_BUT_COMB] && (ev.jbutton.button == JOY_BUT_EXIT)) { + event.type = EVENT_QUIT; + } else if (ev.jbutton.button < 8) { + moveStick(); + event.type = EVENT_MOUSEMOVE; + fillMouseEvent(event, _km.x, _km.y); + } else { + event.type = EVENT_KEYDOWN; + event.kbd.flags = 0; + switch (ev.jbutton.button) { + case GP2X_BUTTON_L: + GP2X_BUTTON_STATE_L = TRUE; + break; + case GP2X_BUTTON_R: + if (GP2X_BUTTON_STATE_L == TRUE) { + event.kbd.keycode = SDLK_0; + event.kbd.ascii = mapKey(SDLK_0, ev.key.keysym.mod, 0); + } else { + event.kbd.keycode = SDLK_F5; + event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0); + } + break; + case GP2X_BUTTON_SELECT: + if (GP2X_BUTTON_STATE_L == TRUE) { + event.type = EVENT_QUIT; + } else { + event.kbd.keycode = SDLK_ESCAPE; + event.kbd.ascii = mapKey(SDLK_ESCAPE, ev.key.keysym.mod, 0); + } + break; + case GP2X_BUTTON_A: + event.kbd.keycode = SDLK_PERIOD; + event.kbd.ascii = mapKey(SDLK_PERIOD, ev.key.keysym.mod, 0); + break; + case GP2X_BUTTON_Y: + if (GP2X_BUTTON_STATE_L == TRUE) { + setZoomOnMouse(); + } else { + event.kbd.keycode = SDLK_SPACE; + event.kbd.ascii = mapKey(SDLK_SPACE, ev.key.keysym.mod, 0); + } + break; + case JOY_BUT_RETURN: + event.kbd.keycode = SDLK_RETURN; + event.kbd.ascii = mapKey(SDLK_RETURN, ev.key.keysym.mod, 0); + break; + case JOY_BUT_ZERO: + event.kbd.keycode = SDLK_0; + event.kbd.ascii = mapKey(SDLK_0, ev.key.keysym.mod, 0); + break; + + //case GP2X_BUTTON_R: + // if ((ev.jbutton.button == GP2X_BUTTON_L) && (ev.jbutton.button == GP2X_BUTTON_R)) { + // displayMessageOnOSD("Exiting ScummVM"); + // //Sync(); + // event.type = EVENT_QUIT; + // break; + // } else if ((ev.jbutton.button == GP2X_BUTTON_L) && (ev.jbutton.button != GP2X_BUTTON_R)) { + // displayMessageOnOSD("Left Trigger Pressed"); + // break; + // } else if ((ev.jbutton.button == GP2X_BUTTON_R) && (ev.jbutton.button != GP2X_BUTTON_L)) { + // event.kbd.keycode = SDLK_F5; + // event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0); + // break; + // } else { + // break; + // } + // break; + case GP2X_BUTTON_VOLUP: + if (GP2X_BUTTON_STATE_L == TRUE) { + displayMessageOnOSD("Setting CPU Speed at 230MHz"); + GP2X_setCpuspeed(200); + //event.kbd.keycode = SDLK_PLUS; + //event.kbd.ascii = mapKey(SDLK_PLUS, ev.key.keysym.mod, 0); + } else { + GP2X_mixer_move_volume(1); + displayMessageOnOSD("Increasing Volume"); + } + break; + case GP2X_BUTTON_VOLDOWN: + if (GP2X_BUTTON_STATE_L == TRUE) { + displayMessageOnOSD("Setting CPU Speed at 60MHz"); + GP2X_setCpuspeed(60); + //event.kbd.keycode = SDLK_MINUS; + //event.kbd.ascii = mapKey(SDLK_MINUS, ev.key.keysym.mod, 0); + } else { + GP2X_mixer_move_volume(0); + displayMessageOnOSD("Decreasing Volume"); + } + break; + } + } + return true; + + case SDL_JOYBUTTONUP: + _stickBtn[ev.jbutton.button] = 0; + if (ev.jbutton.button == JOY_BUT_LMOUSE) { + event.type = EVENT_LBUTTONUP; + fillMouseEvent(event, _km.x, _km.y); + } else if (ev.jbutton.button == JOY_BUT_RMOUSE) { + event.type = EVENT_RBUTTONUP; + fillMouseEvent(event, _km.x, _km.y); + } else if (ev.jbutton.button < 8) { + moveStick(); + event.type = EVENT_MOUSEMOVE; + fillMouseEvent(event, _km.x, _km.y); + } else { + event.type = EVENT_KEYUP; + event.kbd.flags = 0; + switch (ev.jbutton.button) { + case GP2X_BUTTON_SELECT: + event.kbd.keycode = SDLK_ESCAPE; + event.kbd.ascii = mapKey(SDLK_ESCAPE, ev.key.keysym.mod, 0); + break; + case GP2X_BUTTON_A: + event.kbd.keycode = SDLK_PERIOD; + event.kbd.ascii = mapKey(SDLK_PERIOD, ev.key.keysym.mod, 0); + break; + case GP2X_BUTTON_Y: +// event.kbd.keycode = SDLK_SPACE; +// event.kbd.ascii = mapKey(SDLK_SPACE, ev.key.keysym.mod, 0); + break; + case GP2X_BUTTON_START: + event.kbd.keycode = SDLK_RETURN; + event.kbd.ascii = mapKey(SDLK_RETURN, ev.key.keysym.mod, 0); + break; + case GP2X_BUTTON_L: + GP2X_BUTTON_STATE_L = FALSE; + break; + case GP2X_BUTTON_R: + event.kbd.keycode = SDLK_F5; + event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0); + break; + case GP2X_BUTTON_VOLUP: + break; + case GP2X_BUTTON_VOLDOWN: + break; + } + } + return true; + + case SDL_JOYAXISMOTION: + axis = ev.jaxis.value; + if ( axis > JOY_DEADZONE) { + axis -= JOY_DEADZONE; + event.type = EVENT_MOUSEMOVE; + } else if ( axis < -JOY_DEADZONE ) { + axis += JOY_DEADZONE; + event.type = EVENT_MOUSEMOVE; + } else + axis = 0; + + if ( ev.jaxis.axis == JOY_XAXIS) { +#ifdef JOY_ANALOG + _km.x_vel = axis/2000; + _km.x_down_count = 0; +#else + if (axis != 0) { + _km.x_vel = (axis > 0) ? 1:-1; + _km.x_down_count = 1; + } else { + _km.x_vel = 0; + _km.x_down_count = 0; + } +#endif + + } else if (ev.jaxis.axis == JOY_YAXIS) { +#ifndef JOY_INVERT_Y + axis = -axis; +#endif +#ifdef JOY_ANALOG + _km.y_vel = -axis / 2000; + _km.y_down_count = 0; +#else + if (axis != 0) { + _km.y_vel = (-axis > 0) ? 1: -1; + _km.y_down_count = 1; + } else { + _km.y_vel = 0; + _km.y_down_count = 0; + } +#endif + } + + fillMouseEvent(event, _km.x, _km.y); + + return true; + + case SDL_VIDEOEXPOSE: + _forceFull = true; + break; + + case SDL_QUIT: + event.type = EVENT_QUIT; + return true; + } + } + return false; +} + +bool OSystem_GP2X::remapKey(SDL_Event &ev,Event &event) { + return false; +} + |