forked from KolibriOS/kolibrios
Function 18.24 - set limits of screen.
git-svn-id: svn://kolibrios.org@2654 a494cfbc-eb01-0410-851d-a64ba20cac60
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Marat Zakiyanov (Mario79)
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6ea08a8bb3
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01431c16e7
@ -1120,6 +1120,22 @@ dd 1675
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‡ ¬¥η ¨ο:
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* <20><> α―¥ζ. ―®β®<CEB2>®Ά (¨¬ο η¨ ¥βαο α ᨬΆ®« @) ¥ αΆ®ΰ η¨Ά ξβαο.
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======================================================================
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===== ”ãªæ¨ï 18, ¯®¤äãªæ¨ï 24 - ãáâ ®¢¨âì ¯à¥¤¥«ë ®âà¨á®¢ª¨. ======
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======================================================================
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<EFBFBD> à ¬¥âàë:
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* eax = 18 - ®¬¥à äãªæ¨¨
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* ebx = 24 - ®¬¥à ¯®¤äãªæ¨¨
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* ecx = ®¢ë© à §¬¥à ¯® X
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* edx = ®¢ë© à §¬¥à ¯® Y
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‚®§¢à é ¥¬®¥ § 票¥:
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* äãªæ¨ï ¥ ¢®§¢à é ¥â § 票ï
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‡ ¬¥ç ¨ï:
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* ”ãªæ¨ï ¥ ¬¥ï¥â 䨧¨ç¥áª¨© à §¬¥à ¢¨¤¥®à¥¦¨¬ . Ž ¯à¥¤ § ç¥
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¤«ï ¥áâ ¤ àâëå ¤¨á¯«¥¥¢, ®â®¡à ¦ îé¨å ¨§®¡à ¦¥¨¥ ç áâ¨ç®.
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* <20> §¬¥àë 㪠§ë¢ ¥¬ë¥ ¢ äãªæ¨¨ ¥ ¤®«¦ë ¯à¥¢ëè âì à §¬¥àë ⥪ã饣®
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¢¨¤¥®à¥¦¨¬ , ¨ ç¥ äãªæ¨ï ¨ç¥£® ¥ ¨§¬¥¨â.
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======================================================================
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==================== ”γ<CEB3>ζ¨ο 20 - ¨β¥ΰ䥩α MIDI. ====================
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======================================================================
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@ -1119,7 +1119,25 @@ Returned value:
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* eax = N - number of windows minimized from function
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Remarks:
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* Window of special thread (name begin to symbol @) is not minimize.
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======================================================================
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======= Function 18, subfunction 24 - set limits of screen. ==========
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======================================================================
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Parameters:
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* eax = 18 - function number
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* ebx = 24 - subfunction number
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* ecx = new X size
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* edx = new Y size
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Returned value:
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* function does not return value
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Remarks:
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* The function does not change the physical size of the video mode.
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It is designed for non-standard displays which display the image
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partially.
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* The sizes specified in the function should not exceed the sizes
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of the current video mode, otherwise the function will not change
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anything.
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======================================================================
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==================== Function 20 - MIDI interface. ===================
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======================================================================
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@ -383,11 +383,13 @@ high_code:
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movzx eax, word [BOOT_VAR+BOOT_X_RES]; X max
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mov [_display.width], eax
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mov [display_width_standard], eax
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dec eax
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mov [Screen_Max_X], eax
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mov [screen_workarea.right], eax
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movzx eax, word [BOOT_VAR+BOOT_Y_RES]; Y max
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mov [_display.height], eax
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mov [display_height_standard], eax
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dec eax
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mov [Screen_Max_Y], eax
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mov [screen_workarea.bottom], eax
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@ -2055,6 +2057,7 @@ sys_system_table:
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dd sysfn_pid_to_slot ; 21 = get slot number for pid
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dd sysfn_min_rest_window ; 22 = minimize and restore any window
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dd sysfn_min_windows ; 23 = minimize all windows
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dd sysfn_set_screen_sizes ; 24 = set screen sizes for Vesa
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sysfn_num = ($ - sys_system_table)/4
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endg
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;------------------------------------------------------------------------------
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@ -2410,10 +2413,45 @@ sysfn_min_windows:
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call change_task
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ret
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;------------------------------------------------------------------------------
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sysfn_set_screen_sizes:
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cmp [SCR_MODE], word 0x13
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jbe .exit
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cmp [_display.select_cursor], select_cursor
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jne .exit
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cmp ecx, [display_width_standard]
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ja .exit
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cmp edx, [display_height_standard]
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ja .exit
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pushfd
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cli
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mov eax, ecx
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mov ecx, [BytesPerScanLine]
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mov [_display.width], eax
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dec eax
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mov [_display.height], edx
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dec edx
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; eax - new Screen_Max_X
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; edx - new Screen_Max_Y
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mov [do_not_touch_winmap], 1
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call set_screen
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mov [do_not_touch_winmap], 0
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popfd
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call change_task
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.exit:
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ret
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;------------------------------------------------------------------------------
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uglobal
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screen_workarea RECT
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display_width_standard dd 0
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display_height_standard dd 0
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do_not_touch_winmap db 0
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window_minimize db 0
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sound_flag db 0
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endg
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UID_NONE=0
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@ -5158,6 +5196,10 @@ calculate_fast_getting_offset_for_LFB:
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;------------------------------------------------------------------------------
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align 4
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set_screen:
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; in:
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; eax - new Screen_Max_X
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; ecx - new BytesPerScanLine
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; edx - new Screen_Max_Y
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cmp eax, [Screen_Max_X]
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jne .set
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@ -5181,6 +5223,9 @@ set_screen:
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pushad
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cmp [do_not_touch_winmap], 1
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je @f
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stdcall kernel_free, [_WinMapAddress]
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mov eax, [_display.width]
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@ -5191,7 +5236,13 @@ set_screen:
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mov [_WinMapAddress], eax
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test eax, eax
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jz .epic_fail
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; store for f.18.24
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mov eax, [_display.width]
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mov [display_width_standard], eax
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mov eax, [_display.height]
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mov [display_height_standard], eax
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@@:
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call calculate_fast_getting_offset_for_WinMapAddress
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; for Qemu or non standart video cards
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; Unfortunately [BytesPerScanLine] does not always
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