dlls/winedos/int33.c

   1 /*
   2  * DOS interrupt 33h handler
   3  */
   4
   5 #include <stdlib.h>
   6 #include <string.h>
   7
   8 #include "windef.h"
   9 #include "winbase.h"
  10 #include "wingdi.h"
  11 #include "winuser.h"
  12 #include "miscemu.h"
  13 #include "dosexe.h"
  14 #include "vga.h"
  15 #include "debugtools.h"
  16
  17 DEFAULT_DEBUG_CHANNEL(int);
  18
  19 static struct
  20 {
  21   DWORD x, y, but;
  22   FARPROC16 callback;
  23   WORD callmask;
  24 } mouse_info;
  25
  26 /**********************************************************************
  27  *          DOSVM_Int33Handler
  28  *
  29  * Handler for int 33h (MS MOUSE).
  30  */
  31 void WINAPI DOSVM_Int33Handler( CONTEXT86 *context )
  32 {
  33   switch (LOWORD(context->Eax)) {
  34   case 0x00:
  35     TRACE("Reset mouse driver and request status\n");
  36     AX_reg(context) = 0xFFFF; /* installed */
  37     BX_reg(context) = 3;      /* # of buttons */
  38     memset( &mouse_info, 0, sizeof(mouse_info) );
  39     break;
  40   case 0x01:
  41     FIXME("Show mouse cursor\n");
  42     break;
  43   case 0x02:
  44     FIXME("Hide mouse cursor\n");
  45     break;
  46   case 0x03:
  47     TRACE("Return mouse position and button status\n");
  48     BX_reg(context) = mouse_info.but;
  49     CX_reg(context) = mouse_info.x;
  50     DX_reg(context) = mouse_info.y;
  51     break;
  52   case 0x04:
  53     FIXME("Position mouse cursor\n");
  54     break;
  55   case 0x07:
  56     FIXME("Define horizontal mouse cursor range\n");
  57     break;
  58   case 0x08:
  59     FIXME("Define vertical mouse cursor range\n");
  60     break;
  61   case 0x09:
  62     FIXME("Define graphics mouse cursor\n");
  63     break;
  64   case 0x0A:
  65     FIXME("Define text mouse cursor\n");
  66     break;
  67   case 0x0C:
  68     TRACE("Define mouse interrupt subroutine\n");
  69     mouse_info.callmask = CX_reg(context);
  70     mouse_info.callback = (FARPROC16)MAKESEGPTR(context->SegEs, LOWORD(context->Edx));
  71     break;
  72   case 0x10:
  73     FIXME("Define screen region for update\n");
  74     break;
  75   default:
  76     INT_BARF(context,0x33);
  77   }
  78 }
  79
  80 typedef struct {
  81   FARPROC16 proc;
  82   WORD mask,but,x,y,mx,my;
  83 } MCALLDATA;
  84
  85 static void MouseRelay(CONTEXT86 *context,void *mdata)
  86 {
  87   MCALLDATA *data = (MCALLDATA *)mdata;
  88   CONTEXT86 ctx = *context;
  89
  90   ctx.Eax   = data->mask;
  91   ctx.Ebx   = data->but;
  92   ctx.Ecx   = data->x;
  93   ctx.Edx   = data->y;
  94   ctx.Esi   = data->mx;
  95   ctx.Edi   = data->my;
  96   ctx.SegCs = SELECTOROF(data->proc);
  97   ctx.Eip   = OFFSETOF(data->proc);
  98   free(data);
  99   DPMI_CallRMProc(&ctx, NULL, 0, 0);
 100 }
 101
 102 void WINAPI DOSVM_Int33Message(UINT message,WPARAM wParam,LPARAM lParam)
 103 {
 104   WORD mask = 0;
 105   unsigned Height, Width, SX=1, SY=1;
 106
 107   if (!VGA_GetMode(&Height,&Width,NULL)) {
 108     /* may need to do some coordinate scaling */
 109     SX = 640/Width;
 110     if (!SX) SX=1;
 111   }
 112   mouse_info.x = LOWORD(lParam) * SX;
 113   mouse_info.y = HIWORD(lParam) * SY;
 114   switch (message) {
 115   case WM_MOUSEMOVE:
 116     mask |= 0x01;
 117     break;
 118   case WM_LBUTTONDOWN:
 119   case WM_LBUTTONDBLCLK:
 120     mouse_info.but |= 0x01;
 121     mask |= 0x02;
 122     break;
 123   case WM_LBUTTONUP:
 124     mouse_info.but &= ~0x01;
 125     mask |= 0x04;
 126     break;
 127   case WM_RBUTTONDOWN:
 128   case WM_RBUTTONDBLCLK:
 129     mouse_info.but |= 0x02;
 130     mask |= 0x08;
 131     break;
 132   case WM_RBUTTONUP:
 133     mouse_info.but &= ~0x02;
 134     mask |= 0x10;
 135     break;
 136   case WM_MBUTTONDOWN:
 137   case WM_MBUTTONDBLCLK:
 138     mouse_info.but |= 0x04;
 139     mask |= 0x20;
 140     break;
 141   case WM_MBUTTONUP:
 142     mouse_info.but &= ~0x04;
 143     mask |= 0x40;
 144     break;
 145   }
 146
 147   if ((mask & mouse_info.callmask) && mouse_info.callback) {
 148     MCALLDATA *data = calloc(1,sizeof(MCALLDATA));
 149     data->proc = mouse_info.callback;
 150     data->mask = mask & mouse_info.callmask;
 151     data->but = mouse_info.but;
 152     data->x = mouse_info.x;
 153     data->y = mouse_info.y;
 154     DOSVM_QueueEvent(-1, DOS_PRIORITY_MOUSE, MouseRelay, data);
 155   }
 156 }