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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/beos/event.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/beos/event.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/beos/event.c b/board/MAI/bios_emulator/scitech/src/pm/beos/event.c new file mode 100644 index 0000000000..4c32ce7434 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/beos/event.c @@ -0,0 +1,199 @@ +/**************************************************************************** +* +* SciTech OS Portability Manager Library +* +* ======================================================================== +* +* The contents of this file are subject to the SciTech MGL Public +* License Version 1.0 (the "License"); you may not use this file +* except in compliance with the License. You may obtain a copy of +* the License at http://www.scitechsoft.com/mgl-license.txt +* +* Software distributed under the License is distributed on an +* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +* implied. See the License for the specific language governing +* rights and limitations under the License. +* +* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. +* +* The Initial Developer of the Original Code is SciTech Software, Inc. +* All Rights Reserved. +* +* ======================================================================== +* +* Language: ANSI C +* Environment: BeOS +* +* Description: BeOS implementation for the SciTech cross platform +* event library. +* +****************************************************************************/ + +/*---------------------------- Global Variables ---------------------------*/ + +static ushort keyUpMsg[256] = {0};/* Table of key up messages */ +static int rangeX,rangeY; /* Range of mouse coordinates */ + +/*---------------------------- Implementation -----------------------------*/ + +/* These are not used under non-DOS systems */ +#define _EVT_disableInt() 1 +#define _EVT_restoreInt(flags) + +/**************************************************************************** +PARAMETERS: +scanCode - Scan code to test + +REMARKS: +This macro determines if a specified key is currently down at the +time that the call is made. +****************************************************************************/ +#define _EVT_isKeyDown(scanCode) (keyUpMsg[scanCode] != 0) + +/**************************************************************************** +REMARKS: +This function is used to return the number of ticks since system +startup in milliseconds. This should be the same value that is placed into +the time stamp fields of events, and is used to implement auto mouse down +events. +****************************************************************************/ +ulong _EVT_getTicks(void) +{ + // TODO: Implement this for your OS! +} + +/**************************************************************************** +REMARKS: +Pumps all messages in the application message queue into our event queue. +****************************************************************************/ +static void _EVT_pumpMessages(void) +{ + // TODO: The purpose of this function is to read all keyboard and mouse + // events from the OS specific event queue, translate them and post + // them into the SciTech event queue. + // + // NOTE: There are a couple of important things that this function must + // take care of: + // + // 1. Support for KEYDOWN, KEYREPEAT and KEYUP is required. + // + // 2. Support for reading hardware scan code as well as ASCII + // translated values is required. Games use the scan codes rather + // than ASCII values. Scan codes go into the high order byte of the + // keyboard message field. + // + // 3. Support for at least reading mouse motion data (mickeys) from the + // mouse is required. Using the mickey values, we can then translate + // to mouse cursor coordinates scaled to the range of the current + // graphics display mode. Mouse values are scaled based on the + // global 'rangeX' and 'rangeY'. + // + // 4. Support for a timestamp for the events is required, which is + // defined as the number of milliseconds since some event (usually + // system startup). This is the timestamp when the event occurred + // (ie: at interrupt time) not when it was stuff into the SciTech + // event queue. + // + // 5. Support for mouse double click events. If the OS has a native + // mechanism to determine this, it should be used. Otherwise the + // time stamp information will be used by the generic event code + // to generate double click events. +} + +/**************************************************************************** +REMARKS: +This macro/function is used to converts the scan codes reported by the +keyboard to our event libraries normalised format. We only have one scan +code for the 'A' key, and use shift modifiers to determine if it is a +Ctrl-F1, Alt-F1 etc. The raw scan codes from the keyboard work this way, +but the OS gives us 'cooked' scan codes, we have to translate them back +to the raw format. +****************************************************************************/ +#define _EVT_maskKeyCode(evt) + +/**************************************************************************** +REMARKS: +Safely abort the event module upon catching a fatal error. +****************************************************************************/ +void _EVT_abort() +{ + EVT_exit(); + PM_fatalError("Unhandled exception!"); +} + +/**************************************************************************** +PARAMETERS: +mouseMove - Callback function to call wheneve the mouse needs to be moved + +REMARKS: +Initiliase the event handling module. Here we install our mouse handling ISR +to be called whenever any button's are pressed or released. We also build +the free list of events in the event queue. + +We use handler number 2 of the mouse libraries interrupt handlers for our +event handling routines. +****************************************************************************/ +void EVTAPI EVT_init( + _EVT_mouseMoveHandler mouseMove) +{ + /* Initialise the event queue */ + _mouseMove = mouseMove; + initEventQueue(); + memset(keyUpMsg,0,sizeof(keyUpMsg)); + + // TODO: Do any OS specific initialisation here + + /* Catch program termination signals so we can clean up properly */ + signal(SIGABRT, _EVT_abort); + signal(SIGFPE, _EVT_abort); + signal(SIGINT, _EVT_abort); +} + +/**************************************************************************** +REMARKS +Changes the range of coordinates returned by the mouse functions to the +specified range of values. This is used when changing between graphics +modes set the range of mouse coordinates for the new display mode. +****************************************************************************/ +void EVTAPI EVT_setMouseRange( + int xRes, + int yRes) +{ + rangeX = xRes; + rangeY = yRes; +} + +/**************************************************************************** +REMARKS: +Initiailises the internal event handling modules. The EVT_suspend function +can be called to suspend event handling (such as when shelling out to DOS), +and this function can be used to resume it again later. +****************************************************************************/ +void EVT_resume(void) +{ + // Do nothing for non DOS systems +} + +/**************************************************************************** +REMARKS +Suspends all of our event handling operations. This is also used to +de-install the event handling code. +****************************************************************************/ +void EVT_suspend(void) +{ + // Do nothing for non DOS systems +} + +/**************************************************************************** +REMARKS +Exits the event module for program terminatation. +****************************************************************************/ +void EVT_exit(void) +{ + /* Restore signal handlers */ + signal(SIGABRT, SIG_DFL); + signal(SIGFPE, SIG_DFL); + signal(SIGINT, SIG_DFL); + + // TODO: Do any OS specific cleanup in here +} |
