;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;; ;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;; ;; Distributed under terms of the GNU General Public License ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; $Revision$ WINDOW_MOVE_AND_RESIZE_FLAGS = \ mouse.WINDOW_RESIZE_N_FLAG + \ mouse.WINDOW_RESIZE_W_FLAG + \ mouse.WINDOW_RESIZE_S_FLAG + \ mouse.WINDOW_RESIZE_E_FLAG + \ mouse.WINDOW_MOVE_FLAG uglobal align 4 event_start dd ? event_end dd ? event_uid dd 0 endg EV_SPACE = 512 FreeEvents = event_start-EVENT.fd ; "virtual" event, only following field used: ; FreeEvents.fd=event_start and FreeEvents.bk=event_end ;----------------------------------------------------------------------------- align 4 init_events: ;; used from kernel.asm stdcall kernel_alloc, EV_SPACE*sizeof.EVENT or eax, eax jz .fail ; eax - current event, ebx - previous event below mov ecx, EV_SPACE ; current - in allocated space mov ebx, FreeEvents ; previous - list beginning push ebx ; it will be the end later ;-------------------------------------- align 4 @@: mov [ebx+EVENT.fd], eax mov [eax+EVENT.bk], ebx mov ebx, eax ; previos <- current add eax, sizeof.EVENT ; new current loop @b pop eax ; here it became the end mov [ebx+EVENT.fd], eax mov [eax+EVENT.bk], ebx ;-------------------------------------- align 4 .fail: ret ;----------------------------------------------------------------------------- EVENT_WATCHED = 0x10000000 ; bit 28 EVENT_SIGNALED = 0x20000000 ; bit 29 MANUAL_RESET = 0x40000000 ; bit 30 MANUAL_DESTROY = 0x80000000 ; bit 31 ;----------------------------------------------------------------------------- align 4 create_event: ;; EXPORT use ;info: ; Move EVENT from the FreeEvents list to the ObjList list of the current slot; ; EVENT.state is set from ecx, EVENT.code indirectly from esi (if esi <> 0) ;param: ; esi - event data ; ecx - flags ;retval: ; eax - event (=0 => fail) ; edx - uid ;scratched: ebx,ecx,esi,edi mov ebx, [current_slot] add ebx, APP_OBJ_OFFSET mov edx, [TASK_BASE] mov edx, [edx+TASKDATA.pid] pushfd cli ;-------------------------------------- align 4 set_event: ;; INTERNAL use !!! don't use for Call ;info: ; We take a new event from FreeEvents, fill its fields from ecx, edx, esi ; and add it to the list, which specified in ebx. ; Return event (to eax), and it's uid (to edx) ;param: ; ebx - start-chain "virtual" event for entry new event Right of him ; ecx - flags (copied to EVENT.state) ; edx - pid (copied to EVENT.pid) ; esi - event data (copied to EVENT.code indirect, =0 => skip) ;retval: ; eax - event (=0 => fail) ; edx - uid ;scratched: ebx,ecx,esi,edi mov eax, FreeEvents cmp eax, [eax+EVENT.fd] jne @f ; not empty ??? pushad call init_events popad jz RemoveEventTo.break ; POPF+RET ;-------------------------------------- align 4 @@: mov eax, [eax+EVENT.fd] mov [eax+EVENT.magic], 'EVNT' mov [eax+EVENT.destroy], destroy_event.internal mov [eax+EVENT.state], ecx mov [eax+EVENT.pid], edx inc [event_uid] mov edx, [event_uid] mov [eax+EVENT.id], edx or esi, esi jz RemoveEventTo lea edi, [eax+EVENT.code] mov ecx, (sizeof.EVENT -EVENT.code)/4 cld rep movsd ;-------------------------------------- align 4 RemoveEventTo: ;; INTERNAL use !!! don't use for Call ;param: ; eax - pointer to event, WHICH we will insert ; ebx - pointer to event, AFTER which we will insert ;scratched: ebx,ecx mov ecx, eax ; ecx=eax=Self, ebx=NewLeft xchg ecx, [ebx+EVENT.fd] ; NewLeft.fd=Self, ecx=NewRight cmp eax, ecx ; stop, I think... je .break ; - am I not a fool? mov [ecx+EVENT.bk], eax ; NewRight.bk=Self xchg ebx, [eax+EVENT.bk] ; Self.bk=NewLeft, ebx=OldLeft xchg ecx, [eax+EVENT.fd] ; Self.fd=NewRight, ecx=OldRight mov [ebx+EVENT.fd], ecx ; OldLeft.fd=OldRight mov [ecx+EVENT.bk], ebx ; OldRight.bk=OldLeft ;-------------------------------------- align 4 .break: popfd ret ;----------------------------------------------------------------------------- align 4 NotDummyTest: ;; INTERNAL use (not returned for fail !!!) pop edi call DummyTest ; not returned for fail !!! mov ebx, eax mov eax, [ebx+EVENT.pid] push edi ;-------------------------------------- align 4 .small: ; somehow ugly... pop edi pushfd cli call pid_to_slot ; saved all registers (eax - retval) shl eax, 8 jz RemoveEventTo.break ; POPF+RET jmp edi ; normal return ;----------------------------------------------------------------------------- align 4 raise_event: ;; EXPORT use ;info: ; Setting up EVENT.code data ; If is has flag EVENT_SIGNALED activated - nothing else ; Otherwise: activate this flag, except when the EVENT_WATCHED flag is present in edx ; In this case EVENT_SIGNALED will activated only if EVENT_WATCHED presents in the event itself ;param: ; eax - event ; ebx - uid (for Dummy testing) ; edx - flags ; esi - event data (=0 => skip) ;scratched: ebx,ecx,esi,edi call NotDummyTest ; not returned for fail !!! or esi, esi jz @f lea edi, [ebx+EVENT.code] mov ecx, (sizeof.EVENT -EVENT.code)/4 cld rep movsd ;-------------------------------------- align 4 @@: test byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24 jnz RemoveEventTo.break ; POPF+RET bt edx, 28 ;EVENT_WATCHED jnc @f test byte[ebx+EVENT.state+3], EVENT_WATCHED shr 24 jz RemoveEventTo.break ; POPF+RET ;-------------------------------------- align 4 @@: or byte[ebx+EVENT.state+3], EVENT_SIGNALED shr 24 add eax, SLOT_BASE+APP_EV_OFFSET xchg eax, ebx jmp RemoveEventTo ;----------------------------------------------------------------------------- align 4 clear_event: ;; EXPORT use ;info: ; ;param: ; eax - event ; ebx - uid (for Dummy testing) ;scratched: ebx,ecx call NotDummyTest ; not returned for fail !!! add eax, SLOT_BASE+APP_OBJ_OFFSET and byte[ebx+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24) xchg eax, ebx jmp RemoveEventTo ;----------------------------------------------------------------------------- align 4 send_event: ;; EXPORT use ;info: ; Creates a new EVENT (pulls from the FreeEvents list) in the EventList list ; of target slot (eax=pid), with data from esi indirectly, and state=EVENT_SIGNALED ;param: ; eax - slots pid, to sending new event ; esi - pointer to sending data (in code field of new event) ;retval: ; eax - event (=0 => fail) ; edx - uid ;warning: ; may be used as CDECL with such prefix... ; mov esi,[esp+8] ; mov eax,[esp+4] ; but not as STDCALL :( ;scratched: ebx,ecx,esi,edi mov edx, eax call NotDummyTest.small ; not returned for fail !!! lea ebx, [eax+SLOT_BASE+APP_EV_OFFSET] mov ecx, EVENT_SIGNALED jmp set_event ;----------------------------------------------------------------------------- align 4 DummyTest: ;; INTERNAL use (not returned for fail !!!) ;param: ; eax - event ; ebx - uid (for Dummy testing) cmp [eax+EVENT.magic], 'EVNT' jne @f cmp [eax+EVENT.id], ebx je .ret ;-------------------------------------- align 4 @@: pop eax xor eax, eax ;-------------------------------------- align 4 .ret: ret ;----------------------------------------------------------------------------- align 4 Wait_events: or ebx, -1; infinite timeout ;-------------------------------------- align 4 Wait_events_ex: ;info: ; Waiting for an "abstract" event by moving the slot to the 5th position. ; Abstractness lies in the fact, that the fact of an event is determined by the APPDATA.wait_test function, ; which is set by the client and can be actually anything. ; This allows the shed to reliably determine the fact of the event, and not make "idle" switches, ; intended for showdowns like "friend / foe" within the problem. ;param: ; edx - wait_test, client testing function (code address) ; ecx - wait_param, additional parameter, possibly needed for [wait_test] ; ebx - wait_timeout ;retval: ; eax - call result [wait_test] (=0 => timeout) ;scratched: esi mov esi, [current_slot] mov [esi+APPDATA.wait_param], ecx pushad mov ebx, esi ;now this is a question, what where to put.......... pushfd ; this is a consequence of the general concept: let the test function have cli ; the right to hope to disable interrupts, as when called from shed call edx popfd mov [esp+28], eax popad or eax, eax jnz @f ;RET mov [esi+APPDATA.wait_test], edx mov [esi+APPDATA.wait_timeout], ebx mov eax, [timer_ticks] mov [esi+APPDATA.wait_begin], eax mov eax, [TASK_BASE] mov [eax+TASKDATA.state], TSTATE_WAITING call change_task mov eax, [esi+APPDATA.wait_param] ;-------------------------------------- align 4 @@: ret ;----------------------------------------------------------------------------- align 4 wait_event: ;; EXPORT use ;info: ; Waiting for the EVENT_SIGNALED flag in a very specific Event ; (set, presumably, via raise_event) ; When the MANUAL_RESET flag is active, nothing else ; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared, ; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot, ; and if not active, it is destroyed normally (destroy_event.internal) ;param: ; eax - event ; ebx - uid (for Dummy testing) ;scratched: ecx,edx,esi call DummyTest mov ecx, eax ; wait_param mov edx, get_event_alone ; wait_test call Wait_events ; timeout ignored jmp wait_finish ;----------------------------------------------------------------------------- align 4 wait_event_timeout: ;param: ; eax - event ; ebx - uid (for Dummy testing) ; ecx - timeout in timer ticks ;retval: ; eax - EVENT handle or 0 if timeout call DummyTest mov ebx, ecx mov ecx, eax ; wait_param mov edx, get_event_alone ; wait_test call Wait_events_ex test eax, eax jnz wait_finish ret ;----------------------------------------------------------------------------- align 4 get_event_ex: ;; f68:14 ;info: ; Waiting for any event in the EventList of the current slot ; Code event data - copied to application memory (indirectly by edi) ; When the MANUAL_RESET flag is active, nothing else ; Otherwise: the flags EVENT_SIGNALED and EVENT_WATCHED for the received event are cleared, ; and, if MANUAL_DESTROY is active, it moves to the ObjList list of the current slot, ; and if not active, it is destroyed normally (destroy_event.internal) ;param: ; edi - address in the application code to copy data from EVENT.code ;retval: ; eax - EVENT itself (we will call it a handle) ;scratched: ebx,ecx,edx,esi,edi mov edx, get_event_queue ; wait_test call Wait_events ; timeout ignored lea esi, [eax+EVENT.code] mov ecx, (sizeof.EVENT-EVENT.code)/4 cld rep movsd mov byte[edi-(sizeof.EVENT-EVENT.code)+2], cl;clear priority field ;-------------------------------------- align 4 wait_finish: test byte[eax+EVENT.state+3], MANUAL_RESET shr 24 jnz get_event_queue.ret ; RET and byte[eax+EVENT.state+3], not((EVENT_SIGNALED+EVENT_WATCHED)shr 24) test byte[eax+EVENT.state+3], MANUAL_DESTROY shr 24 jz destroy_event.internal mov ebx, [current_slot] add ebx, APP_OBJ_OFFSET pushfd cli jmp RemoveEventTo ;----------------------------------------------------------------------------- align 4 destroy_event: ;; EXPORT use ;info: ; Move EVENT to the FreeEvents list, clear the magic, destroy, pid, id fields ;param: ; eax - event ; ebx - uid (for Dummy testing) ;retval: ; eax - address of EVENT object (=0 => fail) ;scratched: ebx,ecx call DummyTest ; not returned for fail !!! ;-------------------------------------- align 4 .internal: xor ecx, ecx ; clear common header pushfd cli mov [eax+EVENT.magic], ecx mov [eax+EVENT.destroy], ecx mov [eax+EVENT.pid], ecx mov [eax+EVENT.id], ecx mov ebx, FreeEvents jmp RemoveEventTo ;----------------------------------------------------------------------------- align 4 get_event_queue: ;info: ; client testing function for get_event_ex ;warning: ; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot ; -may be assumed, that interrupt are disabled ; -it is not restriction for scratched registers ;param: ; ebx - APPDATA address of testing slot ;retval: ; eax - address of EVENT object (=0 => fail) add ebx, APP_EV_OFFSET mov eax, [ebx+APPOBJ.bk] ; we choose from the end, according to the FIFO principle cmp eax, ebx ; empty ??? je get_event_alone.ret0 ;-------------------------------------- align 4 .ret: ret ;----------------------------------------------------------------------------- align 4 get_event_alone: ;info: ; client testing function for wait_event ;warning: ; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot ; -may be assumed, that interrupt are disabled ; -it is not restriction for scratched registers ;param: ; ebx - APPDATA address of testing slot ;retval: ; eax - address of EVENT object (=0 => fail) mov eax, [ebx+APPDATA.wait_param] test byte[eax+EVENT.state+3], EVENT_SIGNALED shr 24 jnz .ret or byte[eax+EVENT.state+3], EVENT_WATCHED shr 24 ;-------------------------------------- align 4 .ret0: xor eax, eax; NO event!!! ;-------------------------------------- align 4 .ret: ret ;----------------------------------------------------------------------------- align 4 sys_sendwindowmsg: ;; f72 dec ebx jnz .ret ;subfunction==1 ? pushfd cli sub ecx, 2 je .sendkey dec ecx jnz .retf ;-------------------------------------- align 4 .sendbtn: cmp byte[BTN_COUNT], 1 jae .result ;overflow inc byte[BTN_COUNT] shl edx, 8 mov [BTN_BUFF], edx jmp .result ;-------------------------------------- align 4 .sendkey: movzx eax, byte[KEY_COUNT] cmp al, 120 jae .result ;overflow inc byte[KEY_COUNT] mov [KEY_BUFF+eax], dl ; store empty scancode add eax, 120+2 mov [KEY_BUFF+eax], byte 0 sub eax, 120+2 ;-------------------------------------- align 4 .result: setae byte[esp+32+4] ;we consider that initially was: dword[esp+32+4]==72 ;-------------------------------------- align 4 .retf: popfd ;-------------------------------------- align 4 .ret: ret ;----------------------------------------------------------------------------- align 4 sys_getevent: ;; f11 mov ebx, [current_slot] ;now this is a question, what where to put...... pushfd ; this is a consequence of the general concept: let the test function have cli ; the right to hope to disable interrupts, as when called from shed call get_event_for_app popfd mov [esp+32], eax ret ;----------------------------------------------------------------------------- align 4 sys_waitforevent: ;; f10 or ebx, -1; infinite timeout ;-------------------------------------- align 4 sys_wait_event_timeout: ;; f23 call unprotect_from_terminate mov edx, get_event_for_app; wait_test call Wait_events_ex ; ebx - timeout mov [esp+32], eax call protect_from_terminate ret ;----------------------------------------------------------------------------- align 4 get_event_for_app: ;; used from f10,f11,f23 ;info: ; client testing function for applications (f10,f23) ;warning: ; -don't use [TASK_BASE],[current_slot],[current_slot_idx] - it is not for your slot ; -may be assumed, that interrupt are disabled ; -it is not restriction for scratched registers ;param: ; ebx - APPDATA address of testing slot ;retval: ; eax - event number (=0 => no events) movzx edi, bh ; bh is assumed as [current_slot_idx] shl edi, 5 add edi, TASK_TABLE ; edi is assumed as [TASK_BASE] mov ecx, [edi+TASKDATA.event_mask] and ecx, 0x7FFFFFFF ;-------------------------------------- align 4 .loop: ; until we run out all the bits of the mask bsr eax, ecx ; find a non-zero bit of the mask (31 -> 0) jz .no_events ; ran out all the bits of the mask but found nothing ??? btr ecx, eax ; clear the current checking bit of the mask ; go to the handler of this (eax) bit cmp eax, 10 jae .loop ; eax=[10..31], ignored (event 11...32) cmp eax, 3 je .loop ; eax=3, ignored (event 4) cmp eax, 4 je .FlagAutoReset ; eax=4, retvals=eax+1 (event 5) cmp eax, 5 je .mouse_check ; eax=5, retvals=eax+1 (event 6) ja .FlagAutoReset ; eax=[6..9], retvals=eax+1 (event 7...10) cmp eax, 1 jae .BtKy ; eax=[1,2], retvals=eax+1 (event 2,3) ;-------------------------------------- align 4 .WndRedraw: ; eax=0, retval WndRedraw=1 cmp [edi-twdw+WDATA.fl_redraw], al;al==0 jne .result jmp .loop ;-------------------------------------- align 4 .no_events: xor eax, eax ret ;-------------------------------------- align 4 .mouse_check: ; Mouse 5+1=6 push eax mov eax, [TASK_BASE] mov eax, [eax + TASKDATA.event_mask] test eax, 0x80000000 ; bit 31: active/inactive filter f.40 jz @f pop eax jmp .FlagAutoReset ;-------------------------------------- align 4 @@: ; If the window is captured and moved by the user, then no mouse events!!! mov al, [mouse.active_sys_window.action] and al, WINDOW_MOVE_AND_RESIZE_FLAGS test al, al pop eax jnz .loop ;-------------------------------------- align 4 .FlagAutoReset: ; retvals: BgrRedraw=5, IPC=7, Stack=8, Debug=9 btr [ebx+APPDATA.occurred_events], eax jnc .loop ;-------------------------------------- align 4 .result: ; retval = eax+1 inc eax ret ;-------------------------------------- align 4 .BtKy: movzx edx, bh movzx edx, word[WIN_STACK+edx*2] je .Keys ; eax=1, retval Keys=2 ;-------------------------------------- align 4 .Buttons: ; eax=2, retval Buttons=3 cmp byte[BTN_COUNT], 0 je .loop ; empty ??? cmp edx, [thread_count] jne .loop ; not Top ??? mov edx, [BTN_BUFF] shr edx, 8 cmp edx, 0xFFFF ;-ID for Minimize-Button of Form jne .result mov [window_minimize], 1 call wakeup_osloop dec byte[BTN_COUNT] jmp .loop ;-------------------------------------- align 4 .Keys: ; eax==1 cmp edx, [thread_count] jne @f ; not Top ??? cmp [KEY_COUNT], al; al==1 jae .result ; not empty ??? ;-------------------------------------- align 4 @@: mov edx, hotkey_buffer ;-------------------------------------- align 4 @@: cmp [edx], bh ; bh - slot for testing je .result add edx, 8 cmp edx, hotkey_buffer+120*8 jb @b jmp .loop ;end. ;-----------------------------------------------------------------------------