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vwin32.vxd: Load winedos dynamically.

This commit is contained in:
Alexandre Julliard 2009-03-13 11:59:48 +01:00
parent bc553a09ca
commit 50c7473882
2 changed files with 33 additions and 4 deletions
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2
dlls/vwin32.vxd/Makefile.in
View File

@ -3,7 +3,7 @@ TOPOBJDIR = ../..
SRCDIR = @srcdir@
VPATH = @srcdir@
MODULE = vwin32.vxd
IMPORTS = winedos kernel32
IMPORTS = kernel32
C_SRCS = \
vwin32.c

35
dlls/vwin32.vxd/vwin32.c
View File

@ -55,7 +55,22 @@ typedef struct tagMID {
} MID, *PMID;
#include <poppack.h>
extern void WINAPI CallBuiltinHandler( CONTEXT86 *context, BYTE intnum ); /* from winedos */
typedef void (WINAPI *CallBuiltinHandler)( CONTEXT *context, BYTE intnum );
static CallBuiltinHandler load_builtin_handler(void)
{
static CallBuiltinHandler handler;
static BOOL init_done;
if (!init_done)
{
HMODULE mod = LoadLibraryA( "winedos.dll" );
if (mod) handler = (void *)GetProcAddress( mod, "CallBuiltinHandler" );
if (!handler) FIXME( "DOS calls not supported\n" );
init_done = TRUE;
}
return handler;
}
/* Pop a DWORD from the 32-bit stack */
static inline DWORD stack32_pop( CONTEXT86 *context )
@ -121,6 +136,13 @@ BOOL WINAPI VWIN32_DeviceIoControl(DWORD dwIoControlCode,
DIOC_REGISTERS *pIn = lpvInBuffer;
DIOC_REGISTERS *pOut = lpvOutBuffer;
BYTE intnum = 0;
CallBuiltinHandler handler;
if (!(handler = load_builtin_handler()))
{
pOut->reg_Flags |= 0x0001;
return FALSE;
}
TRACE( "Control '%s': "
"eax=0x%08x, ebx=0x%08x, ecx=0x%08x, "
@ -155,7 +177,7 @@ BOOL WINAPI VWIN32_DeviceIoControl(DWORD dwIoControlCode,
break;
}
CallBuiltinHandler( &cxt, intnum );
handler( &cxt, intnum );
CONTEXT_2_DIOCRegs( &cxt, pOut );
}
return TRUE;
@ -203,12 +225,19 @@ DWORD WINAPI VWIN32_VxDCall( DWORD service, CONTEXT86 *context )
{
DWORD callnum = stack32_pop(context);
DWORD parm = stack32_pop(context);
CallBuiltinHandler handler;
TRACE("Int31/DPMI dispatch(%08x)\n", callnum);
if (!(handler = load_builtin_handler()))
{
context->EFlags |= 0x0001;
return 0;
}
context->Eax = callnum;
context->Ecx = parm;
CallBuiltinHandler( context, 0x31 );
handler( context, 0x31 );
return LOWORD(context->Eax);
}
case 0x002a: /* Int41 dispatch - parm = int41 service number */