diff options
Diffstat (limited to 'w16mouse.c')
| -rw-r--r-- | w16mouse.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/w16mouse.c b/w16mouse.c deleted file mode 100644 index 910358f..0000000 --- a/w16mouse.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * VBMouse - win16 mouse driver entry points - * Copyright (C) 2022 Javier S. Pedro - * - * 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. - */ - -#include <windows.h> -#include <limits.h> - -#include "utils.h" -#include "int33.h" -#include "int2fwin.h" -#include "w16mouse.h" - -#define TRACE_EVENTS 0 - -#define MOUSE_NUM_BUTTONS 2 - -/** The routine Windows gave us which we should use to report events. */ -static LPFN_MOUSEEVENT eventproc; -/** Current status of the mouse driver. */ -static bool enabled; -/** Previous deltaX, deltaY from the int33 mouse callback (for relative motion) */ -static short prev_delta_x, prev_delta_y; - -/* This is how events are delivered to Windows */ - -static void send_event(unsigned short Status, short deltaX, short deltaY, short ButtonCount, short extra1, short extra2); -#pragma aux (MOUSEEVENTPROC) send_event = \ - "call dword ptr [eventproc]" - -/* Our "CALLBACKS" segment which is fixed and non-relocatable. */ - -#pragma code_seg ( "CALLBACKS" ) - -#include "dlog.h" - -static void FAR int33_mouse_callback(uint16_t events, uint16_t buttons, int16_t x, int16_t y, int16_t delta_x, int16_t delta_y) -#pragma aux (INT33_CB) int33_mouse_callback -{ - int status = 0; - -#if TRACE_EVENTS - dlog_print("w16mouse: events="); - dlog_printx(events); - dlog_print(" buttons="); - dlog_printx(buttons); - dlog_print(" x="); - dlog_printd(x); - dlog_print(" y="); - dlog_printd(y); - dlog_print(" dx="); - dlog_printd(delta_x); - dlog_print(" dy="); - dlog_printd(delta_y); - dlog_endline(); -#endif - - if (events & INT33_EVENT_MASK_LEFT_BUTTON_PRESSED) status |= SF_B1_DOWN; - if (events & INT33_EVENT_MASK_LEFT_BUTTON_RELEASED) status |= SF_B1_UP; - if (events & INT33_EVENT_MASK_RIGHT_BUTTON_PRESSED) status |= SF_B2_DOWN; - if (events & INT33_EVENT_MASK_RIGHT_BUTTON_RELEASED) status |= SF_B2_UP; - - if (events & INT33_EVENT_MASK_MOVEMENT) { - status |= SF_MOVEMENT; - } - - if (events & INT33_EVENT_MASK_ABSOLUTE) { - status |= SF_ABSOLUTE; - - // We set the window to be 0..0x7FFF, so just scale to 0xFFFF - x = (uint16_t)(x) * 2; - y = (uint16_t)(y) * 2; - } else { - // Prefer to use mickeys for relative motion if we don't have absolute data - x = delta_x - prev_delta_x; - y = delta_y - prev_delta_y; - - prev_delta_x = delta_x; - prev_delta_y = delta_y; - } - - // Unused - (void) buttons; - -#if TRACE_EVENTS - dlog_print("w16mouse: event status="); - dlog_printx(status); - dlog_print(" x="); - if (status & SF_ABSOLUTE) dlog_printu(x); - else dlog_printd(x); - dlog_print(" y="); - if (status & SF_ABSOLUTE) dlog_printu(y); - else dlog_printd(y); - dlog_endline(); -#endif - - send_event(status, x, y, MOUSE_NUM_BUTTONS, 0, 0); -} - -#pragma code_seg () - -/* Driver exported functions. */ - -/** DLL entry point (or driver initialization routine). - * The initialization routine should check whether a mouse exists. - * @return nonzero value indicates a mouse exists. - */ -#pragma off (unreferenced) -BOOL FAR PASCAL LibMain(HINSTANCE hInstance, WORD wDataSegment, - WORD wHeapSize, LPSTR lpszCmdLine) -#pragma pop (unreferenced) -{ - uint16_t version = int33_get_driver_version(); - - // For now we just check for the presence of any int33 driver version - if (version == 0) { - // No one responded to our request, we can assume no driver - // This will cause a "can't load .drv" message from Windows - return 0; - } - - return 1; -} - -/** Called by Windows to retrieve information about the mouse hardware. */ -WORD FAR PASCAL Inquire(LPMOUSEINFO lpMouseInfo) -{ - lpMouseInfo->msExist = 1; - lpMouseInfo->msRelative = 0; - lpMouseInfo->msNumButtons = MOUSE_NUM_BUTTONS; - lpMouseInfo->msRate = 80; - return sizeof(MOUSEINFO); -} - -/** Called by Windows to enable the mouse driver. - * @param lpEventProc Callback function to call when a mouse event happens. */ -VOID FAR PASCAL Enable(LPFN_MOUSEEVENT lpEventProc) -{ - // Store the windows-given callback - _disable(); // Write to far pointer may not be atomic, and we could be interrupted mid-write - eventproc = lpEventProc; - _enable(); - - if (!enabled) { - int33_reset(); - - // Since the mouse driver will likely not know the Windows resolution, - // let's manually set up a large window of coordinates so as to have - // as much precision as possible. - // We use 0x7FFF instead of 0xFFFF because this parameter is officially a signed value. - int33_set_horizontal_window(0, 0x7FFF); - int33_set_vertical_window(0, 0x7FFF); - - int33_set_event_handler(INT33_EVENT_MASK_ALL, int33_mouse_callback); - - enabled = true; - } -} - -/** Called by Windows to disable the mouse driver. */ -VOID FAR PASCAL Disable(VOID) -{ - if (enabled) { - int33_reset(); // This removes our handler and all other settings - enabled = false; - } -} - -/** Called by Window to retrieve the interrupt vector number used by this driver, or -1. */ -int FAR PASCAL MouseGetIntVect(VOID) -{ - return 0x33; -} |