Probably we should use fomit-frame-pointer explicitly even though
fomit-frame-pointer is included by default with -O2 and -O3 just like
the Linux kernel guys doing. I found append -O3 directly to `CFLAGES`
will do the trick. So I removed the KOPT_CFLAGS variable.
In some compilation platform if finite-math-only option is turned
on, math functions like exp and sqrt will be dynamically linked to
finite versions which cannot be located in Kindle's GLIBC. In my
toolchain the symbol __exp_finite cannot be found in GLIBC_2.4 so
gcc just use __exp_finite in GLIBC_2.15, which will cause a run time
error in Kindle saying "version GLIBC_2.15 not found"
Reflow can be configured to use bbox which could remove
side comments and defects in the margin and get much better reflowed
page in some documents. Currently the bbox is only set in PDFReader or
DJVUReader reader. But eventually there will be bbox setting routines in
KOPTReader.
Thirdparty should be cleaned and refetched and remake to get
this feature in operation.
Many users complained that the reflowing process is too slow. This is
rather a speed-quality dilemma. Trade-off can be made by decreasing the
dpi of source page. And by default quality is prefered.
By default the indentaion detection is enabled in K2pdfopt. This will
sometimes generate very poor reflowed page when there are sidenotes on
the page which would be treated as indentation. Disabling indentaion
detection will rescue the reflowed page from this situation.
In order to use mouse to simulate touch input, we have to
generate multiple events on single SDL mouse click event.
It is every hard to achieve this in original implementaion
so I used pipe to fake a input dev as slider_watcher did.
Instead of linking against the location inside the original build tree
we should link against the copy in a single place. This makes the build
code cleaner and more compact even now and will do even more so when we
build more libraries as shared (which is what I am going to attempt
next).
after lots of cherry-pick I found that for some strange reason,
pic.c is not updated and I cannot find out which commit I missed.
So I simply copied the latest pic.c from the master branch here.
