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124 lines
2.8 KiB
C
124 lines
2.8 KiB
C
/*
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* DOS interrupt 33h handler
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*/
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#include <stdlib.h>
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#include "winuser.h"
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#include "miscemu.h"
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#include "dosexe.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(int)
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typedef struct {
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DWORD x, y, but;
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FARPROC16 callback;
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WORD callmask;
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} MOUSESYSTEM;
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/**********************************************************************
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* INT_Int33Handler
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*
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* Handler for int 33h (MS MOUSE).
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*/
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void WINAPI INT_Int33Handler( CONTEXT86 *context )
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{
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MOUSESYSTEM *sys = (MOUSESYSTEM *)DOSVM_GetSystemData(0x33);
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switch (AX_reg(context)) {
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case 0x00:
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TRACE("Reset mouse driver and request status\n");
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AX_reg(context) = 0xFFFF; /* installed */
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BX_reg(context) = 3; /* # of buttons */
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sys = calloc(1,sizeof(MOUSESYSTEM));
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DOSVM_SetSystemData(0x33, sys);
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break;
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case 0x03:
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TRACE("Return mouse position and button status\n");
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BX_reg(context) = sys->but;
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CX_reg(context) = sys->x;
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DX_reg(context) = sys->y;
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break;
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case 0x0C: /* Define interrupt subroutine */
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TRACE("Define mouse interrupt subroutine\n");
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sys->callmask = CX_reg(context);
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sys->callback = (FARPROC16)PTR_SEG_OFF_TO_SEGPTR(ES_reg(context), DX_reg(context));
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break;
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default:
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INT_BARF(context,0x33);
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}
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}
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typedef struct {
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FARPROC16 proc;
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WORD mask,but,x,y,mx,my;
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} MCALLDATA;
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static void MouseRelay(LPDOSTASK lpDosTask,CONTEXT86 *context,void *mdata)
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{
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MCALLDATA *data = (MCALLDATA *)mdata;
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CONTEXT86 ctx = *context;
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EAX_reg(&ctx) = data->mask;
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EBX_reg(&ctx) = data->but;
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ECX_reg(&ctx) = data->x;
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EDX_reg(&ctx) = data->y;
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ESI_reg(&ctx) = data->mx;
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EDI_reg(&ctx) = data->my;
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CS_reg(&ctx) = SELECTOROF(data->proc);
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EIP_reg(&ctx) = OFFSETOF(data->proc);
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free(data);
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DPMI_CallRMProc(&ctx, NULL, 0, 0);
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}
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void WINAPI INT_Int33Message(UINT message,WPARAM wParam,LPARAM lParam)
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{
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MOUSESYSTEM *sys = (MOUSESYSTEM *)DOSVM_GetSystemData(0x33);
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WORD mask = 0;
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if (!sys) return;
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sys->x = LOWORD(lParam);
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sys->y = HIWORD(lParam);
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switch (message) {
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case WM_MOUSEMOVE:
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mask |= 0x01;
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break;
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case WM_LBUTTONDOWN:
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case WM_LBUTTONDBLCLK:
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sys->but |= 0x01;
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mask |= 0x02;
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break;
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case WM_LBUTTONUP:
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sys->but &= ~0x01;
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mask |= 0x04;
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break;
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case WM_RBUTTONDOWN:
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case WM_RBUTTONDBLCLK:
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sys->but |= 0x02;
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mask |= 0x08;
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break;
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case WM_RBUTTONUP:
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sys->but &= ~0x02;
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mask |= 0x10;
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break;
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case WM_MBUTTONDOWN:
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case WM_MBUTTONDBLCLK:
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sys->but |= 0x04;
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mask |= 0x20;
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break;
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case WM_MBUTTONUP:
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sys->but &= ~0x04;
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mask |= 0x40;
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break;
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}
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if ((mask & sys->callmask) && sys->callback) {
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MCALLDATA *data = calloc(1,sizeof(MCALLDATA));
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data->proc = sys->callback;
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data->mask = mask & sys->callmask;
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data->but = sys->but;
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data->x = sys->x;
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data->y = sys->y;
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DOSVM_QueueEvent(-1, DOS_PRIORITY_MOUSE, MouseRelay, data);
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}
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}
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