| Ove Kaaven | baed48e | 1999-03-25 10:50:49 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * DOS interrupt 33h handler |
| 3 | */ |
| 4 | |
| 5 | #include <stdlib.h> |
| 6 | #include "winuser.h" |
| 7 | #include "miscemu.h" |
| 8 | #include "dosexe.h" |
| 9 | #include "debug.h" |
| 10 | |
| 11 | typedef struct { |
| 12 | DWORD x, y, but; |
| 13 | FARPROC16 callback; |
| 14 | WORD callmask; |
| 15 | } MOUSESYSTEM; |
| 16 | |
| 17 | /********************************************************************** |
| 18 | * INT_Int33Handler |
| 19 | * |
| 20 | * Handler for int 33h (MS MOUSE). |
| 21 | */ |
| 22 | void WINAPI INT_Int33Handler( CONTEXT *context ) |
| 23 | { |
| 24 | MOUSESYSTEM *sys = (MOUSESYSTEM *)DOSVM_GetSystemData(0x33); |
| 25 | |
| 26 | switch (AX_reg(context)) { |
| 27 | case 0x00: |
| 28 | TRACE(int,"Reset mouse driver and request status\n"); |
| 29 | AX_reg(context) = 0xFFFF; /* installed */ |
| 30 | BX_reg(context) = 3; /* # of buttons */ |
| 31 | sys = calloc(1,sizeof(MOUSESYSTEM)); |
| 32 | DOSVM_SetSystemData(0x33, sys); |
| 33 | break; |
| 34 | case 0x03: |
| 35 | TRACE(int,"Return mouse position and button status\n"); |
| 36 | BX_reg(context) = sys->but; |
| 37 | CX_reg(context) = sys->x; |
| 38 | DX_reg(context) = sys->y; |
| 39 | break; |
| 40 | case 0x0C: /* Define interrupt subroutine */ |
| 41 | TRACE(int,"Define mouse interrupt subroutine\n"); |
| 42 | sys->callmask = CX_reg(context); |
| 43 | sys->callback = (FARPROC16)PTR_SEG_OFF_TO_SEGPTR(ES_reg(context), DX_reg(context)); |
| 44 | break; |
| 45 | default: |
| 46 | INT_BARF(context,0x33); |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | typedef struct { |
| 51 | FARPROC16 proc; |
| 52 | WORD mask,but,x,y,mx,my; |
| 53 | } MCALLDATA; |
| 54 | |
| 55 | static void MouseRelay(LPDOSTASK lpDosTask,PCONTEXT context,void *mdata) |
| 56 | { |
| 57 | MCALLDATA *data = (MCALLDATA *)mdata; |
| 58 | CONTEXT ctx = *context; |
| 59 | |
| 60 | AX_reg(&ctx) = data->mask; |
| 61 | BX_reg(&ctx) = data->but; |
| 62 | CX_reg(&ctx) = data->x; |
| 63 | DX_reg(&ctx) = data->y; |
| 64 | SI_reg(&ctx) = data->mx; |
| 65 | DI_reg(&ctx) = data->my; |
| 66 | CS_reg(&ctx) = SELECTOROF(data->proc); |
| 67 | IP_reg(&ctx) = OFFSETOF(data->proc); |
| 68 | free(data); |
| 69 | DPMI_CallRMProc(&ctx, NULL, 0, 0); |
| 70 | } |
| 71 | |
| 72 | void WINAPI INT_Int33Message(UINT message,WPARAM wParam,LPARAM lParam) |
| 73 | { |
| 74 | MOUSESYSTEM *sys = (MOUSESYSTEM *)DOSVM_GetSystemData(0x33); |
| 75 | WORD mask = 0; |
| 76 | |
| 77 | if (!sys) return; |
| 78 | sys->x = LOWORD(lParam); |
| 79 | sys->y = HIWORD(lParam); |
| 80 | switch (message) { |
| 81 | case WM_MOUSEMOVE: |
| 82 | mask |= 0x01; |
| 83 | break; |
| 84 | case WM_LBUTTONDOWN: |
| 85 | case WM_LBUTTONDBLCLK: |
| 86 | sys->but |= 0x01; |
| 87 | mask |= 0x02; |
| 88 | break; |
| 89 | case WM_LBUTTONUP: |
| 90 | sys->but &= ~0x01; |
| 91 | mask |= 0x04; |
| 92 | break; |
| 93 | case WM_RBUTTONDOWN: |
| 94 | case WM_RBUTTONDBLCLK: |
| 95 | sys->but |= 0x02; |
| 96 | mask |= 0x08; |
| 97 | break; |
| 98 | case WM_RBUTTONUP: |
| 99 | sys->but &= ~0x02; |
| 100 | mask |= 0x10; |
| 101 | break; |
| 102 | case WM_MBUTTONDOWN: |
| 103 | case WM_MBUTTONDBLCLK: |
| 104 | sys->but |= 0x04; |
| 105 | mask |= 0x20; |
| 106 | break; |
| 107 | case WM_MBUTTONUP: |
| 108 | sys->but &= ~0x04; |
| 109 | mask |= 0x40; |
| 110 | break; |
| 111 | } |
| 112 | |
| 113 | if ((mask & sys->callmask) && sys->callback) { |
| 114 | MCALLDATA *data = calloc(1,sizeof(MCALLDATA)); |
| 115 | data->proc = sys->callback; |
| 116 | data->mask = mask & sys->callmask; |
| 117 | data->but = sys->but; |
| 118 | data->x = sys->x; |
| 119 | data->y = sys->y; |
| 120 | DOSVM_QueueEvent(-1, DOS_PRIORITY_MOUSE, MouseRelay, data); |
| 121 | } |
| 122 | } |
