550 lines
14 KiB
NASM
550 lines
14 KiB
NASM
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;---------------------------------------------------------------------------
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; Optimzed Code Path - on x86 builds effectively excecutes USER32 code.
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;
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; Created:
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; 16-DEC-93 nandurir
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;---------------------------------------------------------------------------
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TITLE USER5.ASM
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PAGE ,132
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.286p
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.xlist
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include ks386p.inc
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.286p
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NOEXTERNS=1 ; to suppress including most of the stuff in user.inc
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include wow.inc
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include wowusr.inc
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;;;;;include cmacros.inc
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include user.inc
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.list
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externFP WOW16Call
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createSeg _TEXT,CODE,WORD,PUBLIC,CODE
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createSeg _DATA,DATA,WORD,PUBLIC,DATA,DGROUP
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defgrp DGROUP,DATA
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externFP WowSetCompatHandle
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;---------------------------------------------------------------------------
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; Optimized thunks for x86 only
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;
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;
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;---------------------------------------------------------------------------
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ifndef PMODE32
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USER16CLIENTTHUNK macro Iapi, api, argtypeslist, returntype, api32, apispecificcode, callserver
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sBegin CODE
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index = 0
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IRP argtype, <argtypeslist>
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index = index + 1
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ENDM
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IFE index
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&Iapi &api, 0
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ELSE
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&Iapi &api
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ENDIF
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sEnd CODE
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endm
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else
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externFP OutputDebugString
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LOGARGS macro apiname
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push dx
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push ax
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push cs
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push OFFSET afterlog_&apiname
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call OutputDebugString
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pop ax
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pop dx
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jmp short afterlogname_&apiname
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afterlog_&apiname: DB 'USER: ','&apiname','()', 0dh, 0ah, 0
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afterlogname_&apiname:
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endm
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; flat selector values
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;
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FLATDS equ KGDT_R3_DATA OR RPL_MASK
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FLATFS equ KGDT_R3_TEB OR RPL_MASK
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; set flat ds and fs
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;
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SETFLATDSANDFS macro
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.386p
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mov ax, FLATDS
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mov ds, ax
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mov ax, FLATFS
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mov fs, ax
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endm
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externFP GetSelectorBase
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GETFLATADDRESS macro farpointer
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; check for null
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xor dx, dx
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mov ax, word ptr &farpointer+2
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or ax, ax
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jz @F
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cCall GetSelectorBase, <ax>
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; check for base address 0
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mov cx, ax
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or cx, dx
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jz @F
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; now its ok
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add ax, word ptr &farpointer
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adc dx, 0
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@@:
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endm
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; generates code like: parmW arg1
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;
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GENPARAM macro argtype, argname
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parm&argtype &argname
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endm
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pushWORD_DWORD macro argname
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movzx eax, &argname
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push eax
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endm
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pushINT_LONG macro argname
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movsx eax, &argname
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push eax
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endm
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pushDWORD_DWORD macro argname
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push dword ptr &argname
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endm
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pushPSZ_DWORD macro argname, apiname, argnumber
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GETFLATADDRESS &argname
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push dx
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push ax
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IFNB <apiname>
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or ax, dx
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jnz @F
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add sp, argnumber * 4
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xor eax, eax
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jmp short FailCall_&apiname
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@@:
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ENDIF
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endm
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pushHHOOK_DWORD macro argname
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push dword ptr -1 ; unreferenced parameter
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; effectively an assertion
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endm
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pushARG16 macro argname
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push &argname
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endm
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CALLORDECLARE macro typestring, api32, totalbytes
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&typestring api32&@&totalbytes
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endm
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TESTCALLSERVERCONDITION macro
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mov edx, DWORD PTR _wow16CsrFlag
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test BYTE PTR [edx], 1
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endm
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; assumes eax is pointer to the flag
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CLEARCALLSERVERCONDITION macro
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mov BYTE PTR [edx], 0
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endm
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;--------------------------------------------------------------------------
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; Iapi = either DUserThunk or UserThunk
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; api = actual name
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; argtypeslist = list of argument 'types' like <WORD, INT, HWND>
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; api32 = this function is called instead of _Api
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; apispecificcode = flag indicating additional code needed for this api.
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; This is intended for handling 'compatibility'.
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;
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; If this argument is not blank, then there must exist a macro
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; APISPECIFICCODE_api, which expands to the desired code.
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; At present it is included just before the 'return' to
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; the app.
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;
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; callserver = flag indication that it may be necessary to actually call
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; USER32.
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;
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; If this argument is not blank, then there must exist a macro
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; CALLSERVERCONDITION_api which expands to the desired code and
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; clears or sets the zero flag. If ZF is clear, the actual
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; thunk gets called, else nop.
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;
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;
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; generates code similar to:
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;
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; externFP _Api OR Api32
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; sBegin CODE
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; if necessary
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; FUN_WOWApi equ FUN_Api
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; DUserThunk WOWApi, %(size Api16)
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; endif
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;
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; cProc Api, <PUBLIC, FAR, PASCAL>, <ds>
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; parmW arg1
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; cBegin
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; movzx, eax, arg1
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; push eax
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; call far ptr _Api OR Api32 (decorates the names)
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;
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; if necessary checks the callservercondtion
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; resets the callservercondition
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; push arg1
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; call WOWApi ; the actual thunk to wow32/server
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; @@:
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; endif
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;
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; if exists, includes code in apispecificcode_api
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; endif
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; cEnd
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; sEnd CODE
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;
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; - nanduri
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;--------------------------------------------------------------------------
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USER16CLIENTTHUNK macro Iapi, api, argtypeslist, returntype, api32, apispecificcode, callserver
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;*** declare api
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;
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index = 0
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IRP argtype, <argtypeslist>
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index = index + 1
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ENDM
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IFB <api32>
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CALLORDECLARE <externFP>, _&api, %(index*4)
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ELSE
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CALLORDECLARE <externFP>, _&api32, %(index*4)
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ENDIF
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sBegin CODE ; _&api
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;*** create thunk to wow32
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;
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IFNB <callserver>
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FUN_WOW&api equ FUN_&api
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DUserThunk WOW&api, %(size api&16)
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ENDIF
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;*** create thea Api label
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;
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IFNB <api>
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IFIDNI <Iapi>, <DUSERTHUNK>
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cProc &api, <PUBLIC, FAR, PASCAL>, <ds>
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ELSE
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cProc I&api, <PUBLIC, FAR, PASCAL>, <ds>
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ENDIF
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ENDIF
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;*** declare args
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;
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nargcount = 0
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IRP argtype, <argtypeslist>
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nargcount = nargcount + 1
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IFIDNI <argtype>, <WORD>
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genparam W, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <INT>
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genparam W, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <SHORT>
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genparam W, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <DWORD>
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genparam D, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <LONG>
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genparam D, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <ULONG>
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genparam D, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <PSZ>
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genparam D, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <NONOPTPSZ>
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genparam D, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <HWND>
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genparam W, arg%(nargcount)
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ENDIF
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IFIDNI <argtype>, <HHOOK>
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genparam D, arg%(nargcount)
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ENDIF
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ENDM
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;*** begin body
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;
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cBegin
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;*** set 32bit registers
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;
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SETFLATDSANDFS
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;*** push args in reverse
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;
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FailCall = 0
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argtopush = nargcount
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REPT nargcount
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inputargindex = 0
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IRP argtype, <argtypeslist>
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inputargindex = inputargindex + 1
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IFE argtopush - inputargindex
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IFIDNI <argtype>, <WORD>
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pushWORD_DWORD arg%argtopush
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ENDIF
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IFIDNI <argtype>, <INT>
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pushINT_LONG arg%argtopush
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ENDIF
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IFIDNI <argtype>, <SHORT>
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pushINT_LONG arg%argtopush
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ENDIF
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IFIDNI <argtype>, <DWORD>
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pushDWORD_DWORD arg%argtopush
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ENDIF
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IFIDNI <argtype>, <LONG>
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pushDWORD_DWORD arg%argtopush
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ENDIF
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IFIDNI <argtype>, <ULONG>
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pushDWORD_DWORD arg%argtopush
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ENDIF
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IFIDNI <argtype>, <PSZ>
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pushPSZ_DWORD arg%argtopush
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ENDIF
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IFIDNI <argtype>, <NONOPTPSZ>
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FailCall = argtopush ; fails call if null
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pushPSZ_DWORD arg%argtopush, &api, %argtopush
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ENDIF
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IFIDNI <argtype>, <HWND>
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pushINT_LONG arg%argtopush
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ENDIF
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IFIDNI <argtype>, <HHOOK>
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pushHHOOK_DWORD arg%argtopush
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ENDIF
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ENDIF
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ENDM
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argtopush = argtopush - 1
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ENDM
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;*** called user32/client api
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;
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IFB <api32>
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CALLORDECLARE <call>, _&api, %(nargcount*4)
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ELSE
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CALLORDECLARE <call>, _&api32, %(nargcount*4)
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ENDIF
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;*** check if we ever need to call server
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;*** calls the real wow thunk
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IFNB <callserver>
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TESTCALLSERVERCONDITION
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jz @F
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CLEARCALLSERVERCONDITION
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index = 0;
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IRP argtype, <argtypeslist>
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index = index + 1
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pushARG16 arg%index
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ENDM
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call WOW&api
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@@:
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ENDIF
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;*** check for any api specific compatibility code to execute
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;
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IFNB <apispecificcode>
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APISPECIFICCODE_&api
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ENDIF
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IF FailCall
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FailCall_&api:
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ENDIF
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IFNB <returntype>
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IRP argtype, <dword, long, ulong>
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IFIDNI <returntype>, <argtype>
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mov edx, eax
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shr edx, 16
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EXITM
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ENDIF
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ENDM
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IFIDNI <returntype>, <boolzero>
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xor ax, ax
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ENDIF
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ENDIF
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ifdef DEBUG
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;LOGARGS &api
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endif
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cEnd
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; end body
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sEnd CODE ; _&api
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endm
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endif ; PMODE32
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assumes CS,CODE
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assumes DS,DATA
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assumes ES,NOTHING
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;;;;;;;;;;sBegin CODE ; macro will generate this
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APISPECIFICCODE_GETCLIENTRECT macro
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xor eax, eax
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endm
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|
||
|
|
APISPECIFICCODE_GETKEYSTATE macro
|
||
|
|
mov cl, ah
|
||
|
|
and cl, 080h
|
||
|
|
or al, cl
|
||
|
|
endm
|
||
|
|
|
||
|
|
APISPECIFICCODE_GETWINDOWRECT macro
|
||
|
|
xor eax, eax
|
||
|
|
endm
|
||
|
|
|
||
|
|
; The following call is only for a dBase for Windows 5.0 bug. Notice however, that this
|
||
|
|
; means that the internal KERNEL api WowSetCompatHandle will be called for every
|
||
|
|
; single invocation of GetDlgItem, no matter what app is running. This is bad, but
|
||
|
|
; on X86 platforms we don't transition to WOW32, and the cost of testing for it
|
||
|
|
; is just about as expensive as just saving it. Still, this should be removed as
|
||
|
|
; soon as we are convinced that the dBase bug has been fixed. -NeilSa
|
||
|
|
APISPECIFICCODE_GETDLGITEM macro
|
||
|
|
push ax
|
||
|
|
call WowSetCompatHandle
|
||
|
|
endm
|
||
|
|
|
||
|
|
public _wow16gpsi
|
||
|
|
public _wow16CsrFlag
|
||
|
|
public _wow16gHighestUserAddress
|
||
|
|
|
||
|
|
sBegin CODE
|
||
|
|
_wow16gpsi DD 0
|
||
|
|
_wow16CsrFlag DD 0
|
||
|
|
_wow16gHighestUserAddress DD 0
|
||
|
|
sEnd CODE
|
||
|
|
|
||
|
|
; the following may end up calling wow32
|
||
|
|
|
||
|
|
USER16CLIENTTHUNK UserThunk, DEFHOOKPROC, <int, word, dword, hhook>, dword, WOW16DefHookProc,,srvcond
|
||
|
|
USER16CLIENTTHUNK UserThunk, ENABLEMENUITEM, <hwnd, word, word>, word,,,srvcond
|
||
|
|
USER16CLIENTTHUNK DUserThunk, GETKEYSTATE, <int>, int,, compatcode, srvcond
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETKEYBOARDSTATE, <nonoptpsz>, boolzero,,,srvcond
|
||
|
|
|
||
|
|
; the following are all thunked locally
|
||
|
|
|
||
|
|
USER16CLIENTTHUNK UserThunk, CLIENTTOSCREEN, <hwnd, psz>,boolzero
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETCLASSNAME, <hwnd, psz, word>, word, GETCLASSNAMEA
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETCLIENTRECT, <hwnd, psz>, bool,,compatcode
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETCURSORPOS, <psz>, boolzero
|
||
|
|
USER16CLIENTTHUNK DUserThunk, GETDESKTOPHWND, <>, hwnd, GETDESKTOPWINDOW
|
||
|
|
USER16CLIENTTHUNK DUserThunk, GETDESKTOPWINDOW, <>, hwnd
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETDLGITEM, <hwnd, word>, hwnd,,compatcode
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETMENU, <hwnd>, hmenu
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETMENUITEMCOUNT, <hwnd>, int
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETMENUITEMID, <hwnd, int>, uint
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETMENUSTATE, <hwnd, word, word>, uint
|
||
|
|
USER16CLIENTTHUNK DUserThunk, GETNEXTWINDOW, <hwnd, word>, hwnd, GETWINDOW
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETPARENT, <hwnd>, hwnd
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETSUBMENU, <hwnd, int>, hmenu
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETSYSCOLOR, <int>, dword
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETSYSTEMMETRICS, <int>, int
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETTOPWINDOW, <hwnd>, hwnd
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETWINDOW, <hwnd, word>, hwnd
|
||
|
|
USER16CLIENTTHUNK UserThunk, GETWINDOWRECT, <hwnd, psz>, bool,,compatcode
|
||
|
|
USER16CLIENTTHUNK DUserThunk, ISWINDOW, <hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK UserThunk, SCREENTOCLIENT, <hwnd, psz>, boolzero
|
||
|
|
ifdef DEBUG
|
||
|
|
USER16CLIENTTHUNK UserThunk, ISCHILD, <hwnd, hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK UserThunk, ISICONIC, <hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK UserThunk, ISWINDOWENABLED, <hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK UserThunk, ISWINDOWVISIBLE, <hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK UserThunk, ISZOOMED, <hwnd>, bool
|
||
|
|
else
|
||
|
|
USER16CLIENTTHUNK DUserThunk, ISCHILD, <hwnd, hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK DUserThunk, ISICONIC, <hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK DUserThunk, ISWINDOWENABLED, <hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK DUserThunk, ISWINDOWVISIBLE, <hwnd>, bool
|
||
|
|
USER16CLIENTTHUNK DUserThunk, ISZOOMED, <hwnd>, bool
|
||
|
|
endif
|
||
|
|
|
||
|
|
|
||
|
|
;;;;;;;;;sEnd CODE ; macro will generate this
|
||
|
|
|
||
|
|
sBegin CODE
|
||
|
|
|
||
|
|
ifndef PMODE32
|
||
|
|
|
||
|
|
DUserThunk GETTICKCOUNT, 0
|
||
|
|
DUserThunk GETCURRENTTIME, 0
|
||
|
|
|
||
|
|
else
|
||
|
|
|
||
|
|
labelFP <PUBLIC, GETTICKCOUNT>
|
||
|
|
labelFP <PUBLIC, GETCURRENTTIME>
|
||
|
|
|
||
|
|
; the TickCount is accessible from client address space.
|
||
|
|
; refer sdk\inc\ntexapi.h
|
||
|
|
; - nanduri
|
||
|
|
|
||
|
|
.386p
|
||
|
|
; set 32bit ds
|
||
|
|
|
||
|
|
push ds
|
||
|
|
mov ax, FLATDS
|
||
|
|
mov ds, ax
|
||
|
|
|
||
|
|
; from sdk\inc\ntexapi.h NtGetTickCount - equivalent code
|
||
|
|
|
||
|
|
mov edx, MM_SHARED_USER_DATA_VA
|
||
|
|
mov eax, [edx].UsTickCountLow
|
||
|
|
mul dword ptr [edx].UsTickCountMultiplier
|
||
|
|
shrd eax,edx,24
|
||
|
|
|
||
|
|
mov edx, eax
|
||
|
|
shr edx, 010h
|
||
|
|
and ax, NOT GRAINYTIC_RES ; round off to lower 64 boundary
|
||
|
|
;this is a cheap implemention of WOWCF_GRAINYTICS flag
|
||
|
|
pop ds
|
||
|
|
retf
|
||
|
|
.286p
|
||
|
|
|
||
|
|
endif
|
||
|
|
|
||
|
|
sEnd CODE
|
||
|
|
end
|