Hi everyone,
I'm using C-Reduce with an OpenGL program which displays unwanted visual
artifacts on some of our workstations. It takes around 30 seconds to compile
the relevant preprocessed single compilation unit C++ file (courtesy of
cotire). Things appear to run smoothly for the first half hour. Upon returning
about 20 hours later though, I see progress around 15% and the terminal has
around 20 messages indicating timeout of C-Reduce has kicked in. I can also see
that there are 10s of instances of our application still running.
I have included our script below. Basically each a.out executable takes a
string argument (the current directory basename) which defines the window name
- one second is given to find that window by name. It is then activated, to
allow a screenshot to be taken. This is compared with the expected "golden"
screenshot, before the window is killed.
I like C-Reduce a lot, though I suspect it isn't ideal for graphical programs.
In any case, I'm keen to learn what I can from it.
#!/bin/bash
FILE=gui_CXX_unity_preprocessed.cxx
GUI_ROOT=$HOME/project/gui
APP_NAME=`basename $PWD`
DIFFERENCE=123
function visual_compare()
{
./a.out $APP_NAME >/dev/null 2>&1 &
WINDOW=`timeout 1s xdotool search --sync --name "$APP_NAME"`
if [ -z "$WINDOW" ]
then
return
fi
xdotool windowactivate $WINDOW
import -screen -window $WINDOW grab.rgba
xdotool windowkill $WINDOW
cmp -s grab.rgba $GUI_ROOT/golden.rgba
DIFFERENCE=$?
}
g++ -std=c++17 ${FILE} -lSDL2 -lSDL2_image -lSDL2_ttf -lGLEW -lGL -L -pthread
>/dev/null 2>&1 &&\
visual_compare && exit $DIFFERENCE
Thanks for your time,
Paul
Please consider the environment and think before you print.
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