# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1562940904 -7200
# Node ID 61f0bf94ef925af83ebd85967de7d76b47b41390
# Parent  c3dcc589da007c184b00051aba6fb43345ce9866
patch 8.1.1665: crash when popup window with mask is below the screen

commit https://github.com/vim/vim/commit/b4207474780569bcc9840e03f13edb5d9c2554f5
Author: Bram Moolenaar <Bram@vim.org>
Date:   Fri Jul 12 16:05:45 2019 +0200

    patch 8.1.1665: crash when popup window with mask is below the screen

    Problem:    Crash when popup window with mask is below the screen.
    Solution:   Correct boundary check.

diff --git a/src/popupwin.c b/src/popupwin.c
--- a/src/popupwin.c
+++ b/src/popupwin.c
@@ -2323,8 +2323,10 @@ update_popup_transparent(win_T *wp, int 
 	    --lines;
 	    if (lines < 0)
 		lines = 0;
-	    for (line = lines; line < linee && line < screen_Rows; ++line)
-		for (col = cols; col < cole && col < screen_Columns; ++col)
+	    for (line = lines; line < linee
+				  && line + wp->w_winrow < screen_Rows; ++line)
+		for (col = cols; col < cole
+				&& col + wp->w_wincol < screen_Columns; ++col)
 		    popup_transparent[(line + wp->w_winrow) * screen_Columns
 						   + col + wp->w_wincol] = val;
 	}
diff --git a/src/testdir/dumps/Test_popupwin_mask_5.dump b/src/testdir/dumps/Test_popupwin_mask_5.dump
new file mode 100644
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_mask_5.dump
@@ -0,0 +1,13 @@
+>1+0&#ffffff0|2|3|4|5|6|7|8|9|1|0|1@2|2|1|3|1|4|1|5|1|6|1|7|1|8|1|9|2|0|2|1|2@2|3|2|4|2|5|2|6|2|7|2|8|2|9|3|0|3|1|3|2|3@2|4|3|5|3|6|3|7|3|8|3|9|4|0|4|1|4|2
+|1|2|3|4|5|6|7|8|9|1|0|1@2|2|1|3|1|4|1|5|1|6|1|7|1|8|1|9|2|0|2|1|2@2|3|2|4|2|5|2|6|2|7|2|8|2|9|3|0|3|1|3|2|3@2|4|3|5|3|6|3|7|3|8|3|9|4|0|4|1|4|2
+|1|2|3|4|5|6|7|8|9|1|0|1@2|2|1|3|x+0#0000001#ffd7ff255@8|8+0#0000000#ffffff0|1|9|2|0|2|1|2@2|3|2|4|2|5|2|6|2|7|2|8|2|9|3|0|3|1|3|2|3@2|4|3|5|3|6|3|7|3|8|3|9|4|0|4|1|4|2
+|1|2|3|4|5|6|7|8|9|1|0|1@2|2|1|3|y+0#0000001#ffd7ff255@8|8+0#0000000#ffffff0|1|9|2|0|2|1|2@2|3|2|4|2|5|2|6|2|7|2|8|2|9|3|0|3|1|3|2|3@2|4|3|5|3|6|3|7|3|8|3|9|4|0|4|1|4|2
+|1|2|3|4|5|6|7|8|9|1|0|1@2|2|1|3|1|4|1|5|1|6|1|7|1|8|1|9|2|0|2|1|2@2|3|2|4|2|5|2|6|2|7|2|8|2|9|3|0|3|1|3|2|3@2|4|3|5|3|6|3|7|3|8|3|9|4|0|4|1|4|2
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+|1|2|3|4|5|6|7|8|9|1|0|1@2|2|1|3|1|4|1|5|1|6|1|7|1|8|1|9|2|0|2|1|2@2|3|2|4|2|5|2|6|2|7|2|8|2|9|3|0|3|1|3|2|3@2|4|3|5|3|6|3|7|3|8|3|9|4|0|4|1|4|2
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+|1|2|3|4|5|6|7|8|9|1|0|1@2|2|1|3|1|4|1|5|1|6|1|7|1|8|1|9|2|0|2|1|2@2|3|2|4|2|5|2|6|2|7|2|8|2|9|3|0|3|1|3|2|3@2|4|3|5|3|6|3|7|3|8|3|9|4|0|4|1|4|2
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+| +0&#e0e0e08@11|1+0&#ffffff0@1|2|1|3|1|4|1|5|1|6|1|7|1|8|1|9|2|0|2|1|2@2|3|2|4|2|5|2|6|═+0#0000001#ffd7ff255@13|X|4+0#0000000#ffffff0|3|5|3|6|3|7|3|8|3|9|4|0|4|1|4|2
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diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -486,6 +486,10 @@ func Test_popup_with_mask()
   call term_sendkeys(buf, ":call popup_move(winidb, {'pos': 'topright', 'col': 12})\<CR>")
   call VerifyScreenDump(buf, 'Test_popupwin_mask_4', {})
 
+  call term_sendkeys(buf, ":call popup_move(winid, {'pos': 'topright', 'col': 12, 'line': 11})\<CR>")
+  call term_sendkeys(buf, ":call popup_move(winidb, {'pos': 'topleft', 'col': 42, 'line': 11})\<CR>")
+  call VerifyScreenDump(buf, 'Test_popupwin_mask_5', {})
+
   " clean up
   call StopVimInTerminal(buf)
   call delete('XtestPopupMask')
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1665,
+/**/
     1664,
 /**/
     1663,