I just tested CudaText Linux x64 qt4 build: it now crashes on showing Command Palette dialog. Crash inside ATListbox.pas in Paint handler, in some Qt painting code. (I tried to change ATListbox.DoubleBuffered, no help.)

AlexeyT wrote

I just tested CudaText Linux x64 qt4 build: it now crashes on showing Command Palette dialog. Crash inside ATListbox.pas in Paint handler, in some Qt painting code. (I tried to change ATListbox.DoubleBuffered, no help.)

Please send gdb stacktrace.

zeljko

Stack trace.

#0 QTransform::type() const at :0

#1 ?? at :0
#2 QPainter::drawImage(QRectF const&, QImage const&, QRectF const&, QFlags<Qt::ImageConversionFlag>) at :0
#3 QPainter_drawImage2 at :0
#4 DRAWIMAGE(0x7fffdd6aad80, 0x7fffffffb2e4, 0x18bd8a0, 0x7fffffffb2f4, 0x0, 0x7fffffffb2d4, 0) at qt/qtobjects.pas:3568
#5 STRETCHMASKBLT(0x7fffef808d30, 140736908144000, 0, 0, 438, 256, 140736908144384, 0, 0, 438, 256, 0, 0, 0, 13369376) at qt/qtwinapi.inc:6990 #6 STRETCHBLT(0x7fffef808d30, 140736908144000, 0, 0, 438, 256, 140736908144384, 0, 0, 438, 256, 13369376) at qt/qtwinapi.inc:6787 #7 STRETCHBLT(140736908144000, 0, 0, 438, 256, 140736908144384, 0, 0, 438, 256, 13369376) at include/winapi.inc:1025
#8 COPYRECT(0x7fffd6997ae0, {LEFT = 0, TOP = 0, RIGHT = 438, BOTTOM = 256, TOPLEFT = {X = 0, Y = 0}, BOTTOMRIGHT = {X = 438, Y = 256}, VECTOR = {0, 0, 438, 256}}, 0x7fffd6997f00, {LEFT = 0, TOP = 0, RIGHT = 438, BOTTOM = 256, TOPLEFT = {X = 0, Y = 0}, BOTTOMRIGHT = {X = 438, Y = 256}, VECTOR = {0, 0, 438, 256}}) at include/canvas.inc:122 #9 PAINT(0x7fffd6eae8f0) at atlistbox.pas:541
#10 PAINTWINDOW(0x7fffd6eae8f0, 140736908144000) at include/customcontrol.inc:118
#11 PAINTHANDLER(0x7fffd6eae8f0, {MSG = 15, UNUSEDMSG = 0, DC = 140736908144000, PAINTSTRUCT = 0x7fffd6cf69c0, RESULT = 0}) at include/wincontrol.inc:4856
#12 WMPAINT(0x7fffd6eae8f0, {MSG = 15, UNUSEDMSG = 0, DC = 140736908144000, PAINTSTRUCT = 0x7fffd6cf69c0, RESULT = 0}) at include/wincontrol.inc:6828
#13 WMPAINT(0x7fffd6eae8f0, {MSG = 15, UNUSEDMSG = 0, DC = 140736908144000, PAINTSTRUCT = 0x7fffd6cf69c0, RESULT = 0}) at include/customcontrol.inc:98
#14 SYSTEM$_$TOBJECT_$__$$_DISPATCH$formal at :0
#15 ?? at :0
#16 ?? at :0
#17 ?? at :0
#18 ?? at :0
#19 .Ld255 at :0
#20 ?? at :0
#21 ?? at :0
#22 ?? at :0
#23 ?? at :0
#24 ?? at :0

Alex

This is crash in Qt library.

#3 QPainter_drawImage2 at :0 #4 DRAWIMAGE(0x7fffdd6aad80, 0x7fffffffb2e4, 0x18bd8a0, 0x7fffffffb2f4, 0x0, 0x7fffffffb2d4, 0) at qt/qtobjects.pas:3568

At line 3568 we are trying to draw image which is converted from QImageFormat_RGB32 format to QImageFormat_ARGB32.
That conversion is needed to fix few issues we had in past with various qt versions on linux and windows. See issues #11713 and #25590 for details. Quick check if that works is to change line (above line 3568 in qtobjects.pas)

     if (not EqualRect(LocalRect, sourceRect^) or (Mask = nil)) and
       (QImage_format(Image) = QImageFormat_RGB32) then
      ...
     to
     if (not EqualRect(LocalRect, sourceRect^) then
      ....

and give feedback. As I can see from stack trace your LocalRect and SourceRect are equal , so it will not convert your image to QImageFormat_ARGB32 , but it will directly draw it in line 3611 (qtobjects.pas).

Just change that, rebuild your project and test.

zeljko

>    if (not EqualRect(LocalRect, sourceRect^) then

Changed this; still crash. call stack is similar:

#0 QTransform::type() const at :0
#1 ?? at :0
#2 QPainter::drawImage(QRectF const&, QImage const&, QRectF const&, QFlags<Qt::ImageConversionFlag>) at :0
#3 QPainter_drawImage2 at :0
#4 DRAWIMAGE(0x7fffdd6aad80, 0x7fffffffb2f4, 0x184edd0, 0x7fffffffb304, 0x0, 0x7fffffffb2e4, 0) at qt/qtobjects.pas:3612
#5 STRETCHMASKBLT(0x7fffef808d30, 140736908144000, 0, 0, 438, 256, 140736908144384, 0, 0, 438, 256, 0, 0, 0, 13369376) at qt/qtwinapi.inc:6990 #6 STRETCHBLT(0x7fffef808d30, 140736908144000, 0, 0, 438, 256, 140736908144384, 0, 0, 438, 256, 13369376) at qt/qtwinapi.inc:6787 #7 STRETCHBLT(140736908144000, 0, 0, 438, 256, 140736908144384, 0, 0, 438, 256, 13369376) at include/winapi.inc:1025
#8 COPYRECT(0x7fffd6997ae0, {LEFT = 0, TOP = 0, RIGHT = 438, BOTTOM = 256, TOPLEFT = {X = 0, Y = 0}, BOTTOMRIGHT = {X = 438, Y = 256}, VECTOR = {0, 0, 438, 256}}, 0x7fffd6997f00, {LEFT = 0, TOP = 0, RIGHT = 438, BOTTOM = 256, TOPLEFT = {X = 0, Y = 0}, BOTTOMRIGHT = {X = 438, Y = 256}, VECTOR = {0, 0, 438, 256}}) at include/canvas.inc:122 #9 PAINT(0x7fffd6eae8f0) at atlistbox.pas:541

AlexeyT wrote

>>    if (not EqualRect(LocalRect, sourceRect^) then Changed this; still crash. call stack is similar:

In that case it looks like a bug in Qt library (QPainter::drawImage is called after our libQt4Pas inside Qt lib). What is your qt4 library version ?

Qt4 version.

user at PC:~$ dpkg-query -s qtchooser

Package: qtchooser
Status: install ok installed
Priority: optional
Section: libdevel
Installed-Size: 127
Maintainer: Ubuntu Developers
Architecture: amd64
Multi-Arch: foreign
Version: 66-1
Replaces: libqt5core5a (<< 5.5.1+dfsg-17~), libqtcore4 (<< 4:4.8.7+dfsg-7~), qtchooser-bin (<< 64-ga1b6736-2~) Depends: libc6 (>= 2.14), libgcc1 (>= 1:3.0), libstdc++6 (>= 5.2) Breaks: libqt5core5a (<< 5.5.1+dfsg-17~), libqtcore4 (<< 4:4.8.7+dfsg-7~), qtbase5-dev-tools (<< 5.9.2+dfsg-3~), qtchooser-bin (<< 64-ga1b6736-2~), qttools5-dev-tools (<< 5.9.2-2~)

AlexeyT wrote

Qt4 version.

Ok, as I can see it's 4.8.7, so last Qt4 release and it's ok. Please open an issue about it, in this case I must install your components and see what's going on inside your atlistbox.pas , and what kind of image is that.

zeljko