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