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Kernel Clipboard. f.54.
git-svn-id: svn://kolibrios.org@4199 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Marat Zakiyanov (Mario79)
parent
2671910c07
commit
9c4fa92828
148
kernel/trunk/core/clipboard.inc
Normal file
148
kernel/trunk/core/clipboard.inc
Normal file
@ -0,0 +1,148 @@
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;------------------------------------------------------------------------------
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align 4
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sys_clipboard:
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xor eax, eax
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dec eax
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; check availability of main list
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cmp [clipboard_main_list], eax
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je .exit_1 ; main list area not found
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test ebx, ebx ; 0 - Get the number of slots in the clipboard
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jnz .1
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; get the number of slots
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mov eax, [clipboard_slots]
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jmp .exit_1
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;------------------------------------------------------------------------------
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align 4
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.1:
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dec ebx ; 1 - Read the data from the clipboard
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jnz .2
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; verify the existence of slot
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cmp ecx, [clipboard_slots]
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jae .exit_2
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; get a pointer to the data of slot
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shl ecx, 2
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add ecx, [clipboard_main_list]
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mov esi, [ecx]
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mov ecx, [esi]
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; allocate memory for application for copy the data of slots
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push ecx
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stdcall user_alloc, ecx
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pop ecx
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; copying data of slots
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mov edi, eax
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cld
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rep movsb
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jmp .exit_1
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;------------------------------------------------------------------------------
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align 4
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.2:
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dec ebx ; 2 - Write the data to the clipboard
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jnz .3
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; check the lock
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mov ebx, clipboard_write_lock
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xor eax, eax
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cmp [ebx], eax
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jne .exit_2
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; lock last slot
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inc eax
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mov [ebx], eax
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; check the overflow pointer of slots
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cmp [clipboard_slots], 1024
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jae .exit_3
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; get memory for new slot
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push ebx ecx edx
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stdcall kernel_alloc, ecx
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pop edx ecx ebx
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test eax, eax
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jz .exit_3
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; create a new slot
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mov edi, eax
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mov eax, [clipboard_slots]
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shl eax, 2
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add eax, [clipboard_main_list]
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mov [eax], edi
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; copy the data into the slot
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mov esi, edx
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mov eax, ecx
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cld
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stosd ; store size of slot
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sub ecx, 4
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add esi, 4
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rep movsb ; store slot data
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; increase the counter of slots
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inc [clipboard_slots]
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; unlock last slot
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xor eax, eax
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mov [ebx], eax
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jmp .exit_1
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;------------------------------------------------------------------------------
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align 4
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.3:
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dec ebx ; 3 - Delete the last slot in the clipboard
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jnz .4
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; check the availability of slots
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mov eax, [clipboard_slots]
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test eax, eax
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jz .exit_2
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; check the lock
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mov ebx, clipboard_write_lock
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xor eax, eax
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cmp [ebx], eax
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jne .exit_2
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; lock last slot
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inc eax
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mov [ebx], eax
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; decrease the counter of slots
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mov eax, clipboard_slots
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dec dword [eax]
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; free of kernel memory allocated for the slot
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mov eax, [eax]
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shl eax, 2
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add eax, [clipboard_main_list]
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mov eax, [eax]
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push ebx
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stdcall kernel_free, eax
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pop ebx
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; unlock last slot
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xor eax, eax
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mov [ebx], eax
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jmp .exit_1
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;------------------------------------------------------------------------------
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align 4
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.4:
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dec ebx ; 4 - Emergency discharge of clipboard
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jnz .exit
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; check the lock
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mov ebx, clipboard_write_lock
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xor eax, eax
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cmp [ebx], eax
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je .exit_2
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; there should be a procedure for checking the integrity of the slots
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; and I will do so in the future
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; unlock last slot
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mov [ebx], eax
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jmp .exit
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;------------------------------------------------------------------------------
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align 4
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.exit_3:
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; unlock last slot
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xor eax, eax
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mov [ebx], eax
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.exit_2:
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xor eax, eax
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inc eax ; error
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.exit_1:
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mov [esp + 32], eax
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.exit:
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ret
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;------------------------------------------------------------------------------
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uglobal
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align 4
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clipboard_slots dd ?
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clipboard_main_list dd ?
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clipboard_write_lock dd ?
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endg
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;------------------------------------------------------------------------------
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@ -184,7 +184,7 @@ iglobal
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dd syscall_threads ; 51-Threads
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dd undefined_syscall ; 52- deprecated Stack driver status
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dd undefined_syscall ; 53- deprecated Socket interface
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dd undefined_syscall ; 54-reserved
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dd sys_clipboard ; 54-Custom clipboard
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dd sound_interface ; 55-Sound interface
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dd undefined_syscall ; 56-reserved
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dd sys_pcibios ; 57-PCI BIOS32
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@ -2427,6 +2427,70 @@ dword-значение цвета 0x00RRGGBB
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* eax = -1 - ошибка (в системе слишком много потоков)
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* иначе eax = TID - идентификатор потока
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======================================================================
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====================== Функция 54, подфункция 0 ======================
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============== Узнать количество слотов в буфере обмена. =============
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======================================================================
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Параметры:
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* eax = 54 - номер функции
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* ebx = 0 - номер подфункции
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Возвращаемое значение:
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* eax = количество слотов в буфере
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* eax = -1 - отсутствует область главного списка
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======================================================================
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====================== Функция 54, подфункция 1 ======================
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================== Считать данные из буфера обмена. ==================
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======================================================================
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Параметры:
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* eax = 54 - номер функции
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* ebx = 1 - номер подфункции
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* eсx = номер слота
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Возвращаемое значение:
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* eax = если успешно - указатель на область памяти с данными
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* eax = 1 - ошибка
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* eax = -1 - отсутствует область главного списка
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======================================================================
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====================== Функция 54, подфункция 2 ======================
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================== Записать данные в буфер обмена. ===================
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======================================================================
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Параметры:
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* eax = 54 - номер функции
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* ebx = 2 - номер подфункции
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* eсx = количество копируемых байт
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* edx = указатель на буфер под копируемые данные
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Возвращаемое значение:
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* eax = 0 - успешно
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* eax = 1 - ошибка
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* eax = -1 - отсутствует область главного списка
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======================================================================
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====================== Функция 54, подфункция 3 ======================
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========= Удалить последний слот с данными в буфере обмена ===========
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======================================================================
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Параметры:
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* eax = 54 - номер функции
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* ebx = 3 - номер подфункции
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Возвращаемое значение:
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* eax = 0 - успешно
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* eax = 1 - ошибка
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* eax = -1 - отсутствует область главного списка
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======================================================================
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====================== Функция 54, подфункция 4 ======================
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=================== Аварийный сброс блокировки буфера ================
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======================================================================
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Параметры:
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* eax = 54 - номер функции
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* ebx = 4 - номер подфункции
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Возвращаемое значение:
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* eax = 0 - успешно
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* eax = -1 - отсутствует область главного списка или нет блокировки
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Замечания:
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* Используется в исключительных случаях, когда зависшее или убитое
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приложение заблокировало работу с буфером обмена.
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======================================================================
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====================== Функция 55, подфункция 55 =====================
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========== Начать проигрывать данные на встроенном спикере. ==========
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@ -2410,6 +2410,70 @@ Returned value:
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* otherwise eax = TID - thread identifier
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</UL>
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======================================================================
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==================== Function 54, subfunction 0 ======================
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============== Get the number of slots in the clipboard. =============
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======================================================================
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Parameters:
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* eax = 54 - function number
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* ebx = 0 - subfunction number
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Returned value:
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* eax = slots in the clipboard
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* eax = -1 - main list area not found
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======================================================================
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==================== Function 54, subfunction 1 ======================
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================= Read the data from the clipboard. ==================
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======================================================================
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Parameters:
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* eax = 54 - function number
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* ebx = 1 - subfunction number
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* eсx = slot number
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Returned value:
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* eax = if successful - pointer to a memory with data
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* eax = 1 - error
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* eax = -1 - main list area not found
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======================================================================
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==================== Function 54, subfunction 2 ======================
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================= Write the data to the clipboard. ===================
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======================================================================
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Parameters:
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* eax = 54 - function number
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* ebx = 2 - subfunction number
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* eсx = the number of bytes to be copied
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* edx = a pointer to a buffer for data to be copied
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Returned value:
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* eax = 0 - success
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* eax = 1 - error
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* eax = -1 - main list area not found
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======================================================================
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===================== Function 54, subfunction 3 =====================
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================ Delete the last slot in the clipboard ===============
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======================================================================
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Parameters:
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* eax = 54 - function number
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* ebx = 3 - subfunction number
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Returned value:
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* eax = 0 - success
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* eax = 1 - error
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* eax = -1 - main list area not found
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======================================================================
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===================== Function 54, subfunction 4 =====================
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===================== Alarm reset the lock buffer ====================
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======================================================================
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Parameters:
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* eax = 54 - function number
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* ebx = 4 - subfunction number
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Returned value:
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* eax = 0 - success
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* eax = -1 - main list area not found or no blocking
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Remarks:
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* Used in exceptional cases, where no responsible or killed
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application blocked the clipboard operations.
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======================================================================
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Function 55, subfunction 55 - begin to play data on built-in speaker.
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======================================================================
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@ -698,6 +698,19 @@ no_mode_0x12:
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mov [mem_BACKGROUND], 4
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mov [img_background], static_background_data
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; set clipboard
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xor eax, eax
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mov [clipboard_slots], eax
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mov [clipboard_write_lock], eax
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stdcall kernel_alloc, 4096
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test eax, eax
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jnz @f
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dec eax
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@@:
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mov [clipboard_main_list], eax
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; SET UP OS TASK
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mov esi, boot_setostask
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@ -171,6 +171,7 @@ include "core/v86.inc" ; virtual-8086 manager
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include "core/irq.inc" ; irq handling functions
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include "core/apic.inc" ; Interrupt Controller functions
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include "core/timers.inc"
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include "core/clipboard.inc" ; custom clipboard
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; GUI stuff
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include "gui/window.inc"
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