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kernel: Fix memory corruption of clipboard data.

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There were a few off-by-one errors in window size calculation.
As a result, winmap update code corrupted clipboard structures.

git-svn-id: svn://kolibrios.org@8928 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Ivan Baravy 2021-06-23 10:07:36 +00:00
parent 6f2937256a
commit 807afdadb8
2 changed files with 8 additions and 2 deletions
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2
kernel/trunk/gui/mouse.inc
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@ -371,6 +371,7 @@ mouse._.move_handler:
cmp eax, [_display.width]
jl @f
sub eax, [_display.width]
inc eax
sub [mouse.active_sys_window.new_box.left], eax
@@:
mov eax, [mouse.active_sys_window.new_box.top]
@ -383,6 +384,7 @@ mouse._.move_handler:
cmp eax, [_display.height]
jl .call_window_handler
sub eax, [_display.height]
inc eax
sub [mouse.active_sys_window.new_box.top], eax
jmp .call_window_handler

8
kernel/trunk/gui/window.inc
View File

@ -1686,7 +1686,8 @@ align 4
align 4
.fix_width_high:
mov ecx, esi
mov [edi + WDATA.box.width], esi
dec ecx
mov [edi + WDATA.box.width], ecx
jmp .check_left
;--------------------------------------
align 4
@ -1699,13 +1700,15 @@ align 4
.fix_left_high:
mov eax, esi
sub eax, ecx
dec eax
mov [edi + WDATA.box.left], eax
jmp .check_height
;--------------------------------------
align 4
.fix_height_high:
mov edx, esi
mov [edi + WDATA.box.height], esi
dec edx
mov [edi + WDATA.box.height], edx
jmp .check_top
;--------------------------------------
align 4
@ -1718,6 +1721,7 @@ align 4
.fix_top_high:
mov ebx, esi
sub ebx, edx
dec ebx
mov [edi + WDATA.box.top], ebx
jmp .exit
;------------------------------------------------------------------------------