msdos/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 "callback.h"
  14 #include "dosexe.h"
  15 #include "vga.h"
  16 #include "debugtools.h"
  17
  18 DEFAULT_DEBUG_CHANNEL(int);
  19
  20 static struct
  21 {
  22   DWORD x, y, but;
  23   FARPROC16 callback;
  24   WORD callmask;
  25 } mouse_info;
  26
  27 /**********************************************************************
  28  *          INT_Int33Handler
  29  *
  30  * Handler for int 33h (MS MOUSE).
  31  */
  32 void WINAPI INT_Int33Handler( CONTEXT86 *context )
  33 {
  34   switch (LOWORD(context->Eax)) {
  35   case 0x00:
  36     TRACE("Reset mouse driver and request status\n");
  37     AX_reg(context) = 0xFFFF; /* installed */
  38     BX_reg(context) = 3;      /* # of buttons */
  39     memset( &mouse_info, 0, sizeof(mouse_info) );
  40     break;
  41   case 0x01:
  42     FIXME("Show mouse cursor\n");
  43     break;
  44   case 0x02:
  45     FIXME("Hide mouse cursor\n");
  46     break;
  47   case 0x03:
  48     TRACE("Return mouse position and button status\n");
  49     BX_reg(context) = mouse_info.but;
  50     CX_reg(context) = mouse_info.x;
  51     DX_reg(context) = mouse_info.y;
  52     break;
  53   case 0x04:
  54     FIXME("Position mouse cursor\n");
  55     break;
  56   case 0x07:
  57     FIXME("Define horizontal mouse cursor range\n");
  58     break;
  59   case 0x08:
  60     FIXME("Define vertical mouse cursor range\n");
  61     break;
  62   case 0x09:
  63     FIXME("Define graphics mouse cursor\n");
  64     break;
  65   case 0x0A:
  66     FIXME("Define text mouse cursor\n");
  67     break;
  68   case 0x0C:
  69     TRACE("Define mouse interrupt subroutine\n");
  70     mouse_info.callmask = CX_reg(context);
  71     mouse_info.callback = (FARPROC16)MAKESEGPTR(context->SegEs, LOWORD(context->Edx));
  72     break;
  73   case 0x10:
  74     FIXME("Define screen region for update\n");
  75     break;
  76   default:
  77     INT_BARF(context,0x33);
  78   }
  79 }
  80
  81 typedef struct {
  82   FARPROC16 proc;
  83   WORD mask,but,x,y,mx,my;
  84 } MCALLDATA;
  85
  86 static void MouseRelay(CONTEXT86 *context,void *mdata)
  87 {
  88   MCALLDATA *data = (MCALLDATA *)mdata;
  89   CONTEXT86 ctx = *context;
  90
  91   ctx.Eax   = data->mask;
  92   ctx.Ebx   = data->but;
  93   ctx.Ecx   = data->x;
  94   ctx.Edx   = data->y;
  95   ctx.Esi   = data->mx;
  96   ctx.Edi   = data->my;
  97   ctx.SegCs = SELECTOROF(data->proc);
  98   ctx.Eip   = OFFSETOF(data->proc);
  99   free(data);
 100   DPMI_CallRMProc(&ctx, NULL, 0, 0);
 101 }
 102
 103 void WINAPI INT_Int33Message(UINT message,WPARAM wParam,LPARAM lParam)
 104 {
 105   WORD mask = 0;
 106   unsigned Height, Width, SX=1, SY=1;
 107
 108   if (!VGA_GetMode(&Height,&Width,NULL)) {
 109     /* may need to do some coordinate scaling */
 110     SX = 640/Width;
 111     if (!SX) SX=1;
 112   }
 113   mouse_info.x = LOWORD(lParam) * SX;
 114   mouse_info.y = HIWORD(lParam) * SY;
 115   switch (message) {
 116   case WM_MOUSEMOVE:
 117     mask |= 0x01;
 118     break;
 119   case WM_LBUTTONDOWN:
 120   case WM_LBUTTONDBLCLK:
 121     mouse_info.but |= 0x01;
 122     mask |= 0x02;
 123     break;
 124   case WM_LBUTTONUP:
 125     mouse_info.but &= ~0x01;
 126     mask |= 0x04;
 127     break;
 128   case WM_RBUTTONDOWN:
 129   case WM_RBUTTONDBLCLK:
 130     mouse_info.but |= 0x02;
 131     mask |= 0x08;
 132     break;
 133   case WM_RBUTTONUP:
 134     mouse_info.but &= ~0x02;
 135     mask |= 0x10;
 136     break;
 137   case WM_MBUTTONDOWN:
 138   case WM_MBUTTONDBLCLK:
 139     mouse_info.but |= 0x04;
 140     mask |= 0x20;
 141     break;
 142   case WM_MBUTTONUP:
 143     mouse_info.but &= ~0x04;
 144     mask |= 0x40;
 145     break;
 146   }
 147
 148   if ((mask & mouse_info.callmask) && mouse_info.callback) {
 149     MCALLDATA *data = calloc(1,sizeof(MCALLDATA));
 150     data->proc = mouse_info.callback;
 151     data->mask = mask & mouse_info.callmask;
 152     data->but = mouse_info.but;
 153     data->x = mouse_info.x;
 154     data->y = mouse_info.y;
 155     Dosvm.QueueEvent(-1, DOS_PRIORITY_MOUSE, MouseRelay, data);
 156   }
 157 }