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cmapcube: don't crash on initdraw failure

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This commit is contained in:
Russ Cox 2020-01-11 06:02:08 -05:00
parent dbf57689c4
commit 2cb85891ba
1 changed files with 2 additions and 1 deletions
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3
src/cmd/draw/cmapcube.c
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@ -185,7 +185,8 @@ void main(int argc, char **argv){
break;
}ARGEND
initdraw(0,0,0);
if(initdraw(0,0,0) < 0)
sysfatal("initdraw: %r");
ncolor=256;
for(i=0;i!=ncolor;i++)
color[i] = allocimage(display, Rect(0, 0, 1, 1), CMAP8, 1, cmap2rgba(i));