msdos/int33.c

   1 /*
   2  * DOS interrupt 33h handler
   3  */
   4
   5 #include <stdlib.h>
   6 #include "windef.h"
   7 #include "wingdi.h"
   8 #include "winuser.h"
   9 #include "miscemu.h"
  10 #include "dosexe.h"
  11 #include "vga.h"
  12 #include "debugtools.h"
  13
  14 DEFAULT_DEBUG_CHANNEL(int);
  15
  16 static struct
  17 {
  18   DWORD x, y, but;
  19   FARPROC16 callback;
  20   WORD callmask;
  21 } mouse_info;
  22
  23 /**********************************************************************
  24  *          INT_Int33Handler
  25  *
  26  * Handler for int 33h (MS MOUSE).
  27  */
  28 void WINAPI INT_Int33Handler( CONTEXT86 *context )
  29 {
  30   switch (LOWORD(context->Eax)) {
  31   case 0x00:
  32     TRACE("Reset mouse driver and request status\n");
  33     AX_reg(context) = 0xFFFF; /* installed */
  34     BX_reg(context) = 3;      /* # of buttons */
  35     memset( &mouse_info, 0, sizeof(mouse_info) );
  36     break;
  37   case 0x01:
  38     FIXME("Show mouse cursor\n");
  39     break;
  40   case 0x02:
  41     FIXME("Hide mouse cursor\n");
  42     break;
  43   case 0x03:
  44     TRACE("Return mouse position and button status\n");
  45     BX_reg(context) = mouse_info.but;
  46     CX_reg(context) = mouse_info.x;
  47     DX_reg(context) = mouse_info.y;
  48     break;
  49   case 0x04:
  50     FIXME("Position mouse cursor\n");
  51     break;
  52   case 0x07:
  53     FIXME("Define horizontal mouse cursor range\n");
  54     break;
  55   case 0x08:
  56     FIXME("Define vertical mouse cursor range\n");
  57     break;
  58   case 0x09:
  59     FIXME("Define graphics mouse cursor\n");
  60     break;
  61   case 0x0A:
  62     FIXME("Define text mouse cursor\n");
  63     break;
  64   case 0x0C:
  65     TRACE("Define mouse interrupt subroutine\n");
  66     mouse_info.callmask = CX_reg(context);
  67     mouse_info.callback = (FARPROC16)PTR_SEG_OFF_TO_SEGPTR(context->SegEs, LOWORD(context->Edx));
  68     break;
  69   case 0x10:
  70     FIXME("Define screen region for update\n");
  71     break;
  72   default:
  73     INT_BARF(context,0x33);
  74   }
  75 }
  76
  77 typedef struct {
  78   FARPROC16 proc;
  79   WORD mask,but,x,y,mx,my;
  80 } MCALLDATA;
  81
  82 static void MouseRelay(CONTEXT86 *context,void *mdata)
  83 {
  84   MCALLDATA *data = (MCALLDATA *)mdata;
  85   CONTEXT86 ctx = *context;
  86
  87   ctx.Eax   = data->mask;
  88   ctx.Ebx   = data->but;
  89   ctx.Ecx   = data->x;
  90   ctx.Edx   = data->y;
  91   ctx.Esi   = data->mx;
  92   ctx.Edi   = data->my;
  93   ctx.SegCs = SELECTOROF(data->proc);
  94   ctx.Eip   = OFFSETOF(data->proc);
  95   free(data);
  96   DPMI_CallRMProc(&ctx, NULL, 0, 0);
  97 }
  98
  99 void WINAPI INT_Int33Message(UINT message,WPARAM wParam,LPARAM lParam)
 100 {
 101   WORD mask = 0;
 102   unsigned Height, Width, SX=1, SY=1;
 103
 104   if (!VGA_GetMode(&Height,&Width,NULL)) {
 105     /* may need to do some coordinate scaling */
 106     SX = 640/Width;
 107     if (!SX) SX=1;
 108   }
 109   mouse_info.x = LOWORD(lParam) * SX;
 110   mouse_info.y = HIWORD(lParam) * SY;
 111   switch (message) {
 112   case WM_MOUSEMOVE:
 113     mask |= 0x01;
 114     break;
 115   case WM_LBUTTONDOWN:
 116   case WM_LBUTTONDBLCLK:
 117     mouse_info.but |= 0x01;
 118     mask |= 0x02;
 119     break;
 120   case WM_LBUTTONUP:
 121     mouse_info.but &= ~0x01;
 122     mask |= 0x04;
 123     break;
 124   case WM_RBUTTONDOWN:
 125   case WM_RBUTTONDBLCLK:
 126     mouse_info.but |= 0x02;
 127     mask |= 0x08;
 128     break;
 129   case WM_RBUTTONUP:
 130     mouse_info.but &= ~0x02;
 131     mask |= 0x10;
 132     break;
 133   case WM_MBUTTONDOWN:
 134   case WM_MBUTTONDBLCLK:
 135     mouse_info.but |= 0x04;
 136     mask |= 0x20;
 137     break;
 138   case WM_MBUTTONUP:
 139     mouse_info.but &= ~0x04;
 140     mask |= 0x40;
 141     break;
 142   }
 143
 144   if ((mask & mouse_info.callmask) && mouse_info.callback) {
 145     MCALLDATA *data = calloc(1,sizeof(MCALLDATA));
 146     data->proc = mouse_info.callback;
 147     data->mask = mask & mouse_info.callmask;
 148     data->but = mouse_info.but;
 149     data->x = mouse_info.x;
 150     data->y = mouse_info.y;
 151     DOSVM_QueueEvent(-1, DOS_PRIORITY_MOUSE, MouseRelay, data);
 152   }
 153 }