Fex

                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

                            Preamble

  The GNU General Public License is a free, copyleft license for
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  The licenses for most software and other practical works are designed
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  When we speak of free software, we are referring to freedom, not
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                       TERMS AND CONDITIONS

  0. Definitions.

  "This License" refers to version 3 of the GNU General Public License.

  "Copyright" also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.

  "The Program" refers to any copyrightable work licensed under this
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  To "modify" a work means to copy from or adapt all or part of the work
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  A "covered work" means either the unmodified Program or a work based
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  To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
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  To "convey" a work means any kind of propagation that enables other
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  An interactive user interface displays "Appropriate Legal Notices"
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work under this License, and how to view a copy of this License.  If
the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.

  1. Source Code.

  The "source code" for a work means the preferred form of the work
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  The "Corresponding Source" for a work in object code form means all
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  The Corresponding Source need not include anything that users
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  The Corresponding Source for a work in source code form is that
same work.

  2. Basic Permissions.

  All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
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permission to run the unmodified Program.  The output from running a
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  You may make, run and propagate covered works that you do not
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  4. Conveying Verbatim Copies.

  You may convey verbatim copies of the Program's source code as you
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keep intact all notices stating that this License and any
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keep intact all notices of the absence of any warranty; and give all
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  You may charge any price or no price for each copy that you convey,
and you may offer support or warranty protection for a fee.

  5. Conveying Modified Source Versions.

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terms of section 4, provided that you also meet all of these conditions:

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    b) The work must carry prominent notices stating that it is
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    c) You must license the entire work, as a whole, under this
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  6. Conveying Non-Source Forms.

  You may convey a covered work in object code form under the terms
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    copy of the Corresponding Source for all the software in the
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    d) Convey the object code by offering access from a designated
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  A separable portion of the object code, whose source code is excluded
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  A "User Product" is either (1) a "consumer product", which means any
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  "Installation Information" for a User Product means any methods,
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  If you convey an object code work under this section in, or with, or
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if neither you nor any third party retains the ability to install
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been installed in ROM).

  The requirement to provide Installation Information does not include a
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the User Product in which it has been modified or installed.  Access to a
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  Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
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unpacking, reading or copying.

  7. Additional Terms.

  "Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law.  If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.

  When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it.  (Additional permissions may be written to require their own
removal in certain cases when you modify the work.)  You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.

  Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:

    a) Disclaiming warranty or limiting liability differently from the
    terms of sections 15 and 16 of this License; or

    b) Requiring preservation of specified reasonable legal notices or
    author attributions in that material or in the Appropriate Legal
    Notices displayed by works containing it; or

    c) Prohibiting misrepresentation of the origin of that material, or
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    d) Limiting the use for publicity purposes of names of licensors or
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  All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10.  If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term.  If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.

  If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.

  Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.

  8. Termination.

  You may not propagate or modify a covered work except as expressly
provided under this License.  Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).

  However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.

  Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.

  Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License.  If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.

  9. Acceptance Not Required for Having Copies.

  You are not required to accept this License in order to receive or
run a copy of the Program.  Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance.  However,
nothing other than this License grants you permission to propagate or
modify any covered work.  These actions infringe copyright if you do
not accept this License.  Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.

  10. Automatic Licensing of Downstream Recipients.

  Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License.  You are not responsible
for enforcing compliance by third parties with this License.

  An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations.  If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.

  You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License.  For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.

  11. Patents.

  A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based.  The
work thus licensed is called the contributor's "contributor version".

  A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version.  For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.

  Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.

  In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement).  To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.

  If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients.  "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.

  If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.

  A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License.  You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.

  Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.

  12. No Surrender of Others' Freedom.

  If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all.  For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.

  13. Use with the GNU Affero General Public License.

  Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work.  The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.

  14. Revised Versions of this License.

  The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

  Each version is given a distinguishing version number.  If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation.  If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.

  If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.

  Later license versions may give you additional or different
permissions.  However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.

  15. Disclaimer of Warranty.

  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

  16. Limitation of Liability.

  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.

  17. Interpretation of Sections 15 and 16.

  If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

                     END OF TERMS AND CONDITIONS

            How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

Also add information on how to contact you by electronic and paper mail.

  If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:

    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".

  You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.

  The GNU General Public License does not permit incorporating your program
into proprietary programs.  If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.  But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

PROG     =  fex
VER      =  2.0
CC       ?= gcc
DEPS     =  x11 cairo fftw3 sndfile
DEFS		=  -DPROGRAM_NAME=${PROG} -DPROGRAM_VER=${VER}









CFLAGS   += $(shell pkg-config --cflags ${DEPS}) ${DEFS}
LDLIBS   += $(shell pkg-config --libs ${DEPS}) -lm -lXpm
PREFIX   ?= /usr


MODULES  =  config fex fft spectro wave xlib
HEADERS  =  fex.h
MANPAGES =  fex.1 fex-help.1
VPATH    =  src:doc

${PROG}: ${MODULES:%=%.o}

xlib.o: xlib.c xlib_toolwin.c xlib_events.c xlib_actions.c ${HEADERS}

config.o: config.c config.h ${HEADERS}


%.o: %.c ${HEADERS}

install: ${PROG}
	@install -Dm755 ${PROG} ${DESTDIR}${PREFIX}/bin/${PROG}
	@install -Dm755 src/${PROG}-gtk ${DESTDIR}${PREFIX}/bin/${PROG}-gtk
	@install -Dm644 doc/${PROG}.1 ${DESTDIR}${PREFIX}/share/man/man1/${PROG}.1
	@install -Dm644 doc/${PROG}-help.1 ${DESTDIR}${PREFIX}/share/man/man1/${PROG}-help.1
	@mkdir -p ${DESTDIR}${PREFIX}/share/${PROG}
	@install -Dm644 share/config ${DESTDIR}${PREFIX}/share/${PROG}/config
	@install -Dm644 share/icon.png ${DESTDIR}${PREFIX}/share/pixmaps/${PROG}.png
	@install -Dm644 share/${PROG}.desktop ${DESTDIR}${PREFIX}/share/applications/${PROG}.desktop

${MANPAGES}: fex%.1: fex%-1.tex
	@latex2man $< doc/$@

man: ${MANPAGES}

clean:
	@rm -f ${MODULES:%=%.o}

distclean: clean
	@rm -f ${PROG} ${PROG}-${VER}.tar.gz


moreclean: distclean
	@cd doc && rm -f ${MANPAGES}

dist: distclean
	@tar -czf ${PROG}-${VER}.tar.gz *

.PHONY: clean dist distclean man

PROG      =  glFex
VER       =  3.0a
CC       ?=  gcc



ifeq ($(OS),win)
# fftw3 and sndfile??
DEFS     += -D_WIN32_
CFLAGS   += -I"C:\Program Files\Common Files\MinGW\GLUT\include"
LDLIBS   += -L"C:\Program Files\Common Files\MinGW\GLUT\lib" -lglut32 -lopengl32 -Wl,--subsystem,windows
endif
ifeq ($(OS),linux)
DEPS      =  fftw3 freeglut gl sndfile
CFLAGS   +=  $(shell pkg-config --cflags ${DEPS})
LDLIBS   +=  $(shell pkg-config --libs ${DEPS}) -lm
PREFIX   ?=  /usr
endif

MODULES   =  config fex fft wave
HEADERS   =  fex.h fex_struct.h
MANPAGES  =  fex.1
VPATH     =  src:doc

${PROG}: ${MODULES:%=%.o}




glFex.o: glFex.c fex.h

%.o: %.c ${HEADERS}
















clean:
	@rm -f *.o

distclean: clean

	@rm -f glFex glFex.exe







.PHONY: clean distclean

- erasing
- complete configure module

#FEX

The Frequency Excursion Calculator

##Description

FEX is a spectrographic analysis tool for bioacoustic signals.

Further details will be described in an upcoming publication.

\documentclass{latex2man}

\begin{Name}{1}{fex}{Jesse McClure}{Frequency Excusion}{FEX --- The frequency excursion calculator}

\Prog{Fex} - The frequency excursion calculator

\end{Name}

\section{Synopsis}

\Prog{fex}
	[\Opt{-l}|\Opt{--long}]
	[\Opt{-v}|\Opt{--version}]
	[\Opt{-v}|\Opt{--version}]
	\Arg{<wave file>}

\Prog{fex-gtk}
	[\Opt{-l}|\Opt{--long}]
	\Arg{<wave file>}
	[\Arg{<wave file>} ...]


\section{Description}

\Prog{Fex} is a bioacoustic analysis tool for calculating the frequency
excursion of an audio recording of bird songs or other sound waves.

\Prog{Fex-gtk} is a wrapper script for fex that facilitates batch
processing of large numbers of wave files.  \Prog{Fex-gtk} can be
provided a list of file names, or can be run with no parameters to
provide a dialog window to select input wave files.  \Prog{Fex} will be
run on each input file, and the results can either be stored to a data
file or displayed in a dialog window upon completion.

\Prog{Fex-gtk} is also the executable target of \File{fex.desktop} to
allow for drag-and-drop operation of \Prog{fex}.  The desktop file can
accept any number of wave files as a drop target.

\section{Options}

\begin{description}
\item[\Opt{-l}|\Opt{--long}]
	Provide three column output specifying the path length, path
	duration, and frequency excursion (calculated as path length over
	duration).  Default is to provide only the frequency excursion value.
\item[\Opt{-h}|\Opt{--help}]
	Print help message and exit.
\item[\Opt{-v}|\Opt{--version}]
	Print version information and exit.
\end{description}

\section{Configuration}
\Prog{Fex} is configured via a runtime configuration file read from one
of
\File{\$XDG\_CONFIG\_HOME/fex/config},
\File{\$HOME/.config/fex/config},
\File{\$HOME/.fexrc}, or
\File{/usr/share/fex/config}.

Read the example configuration file at \File{/usr/share/fex/config} for
a complete description of the available options.  Those listed below are
only the most likely to be changed.  Settings not listed below should be
changed only with caution.

\subsection{Settings}

The options below are configured with the following format:

\Opt{set} \Arg{option} = \Arg{value}

\begin{description}
\item[\Opt{threshold}]
	Amplitude at which points can be considered part of the signal
	in dB below the maximum amplitude.
\item[\Opt{floor}]
	Sound floor for the spectrogram display
	in dB below the maximum amplitude.
\item[\Opt{bandpass}]
	Hi pass and low pass filter values in kHz.
\end{description}


\subsection{Colors}

Colors are configured with the following format where each setting is a
floating point value between 0.00 and 1.00:

\Opt{color} \Arg{element} = \Arg{Red} \Arg{Green} \Arg{Blue} \Arg{Alpha}
\Arg{Width}

\begin{description}
\item[\Opt{spectrogram}]
	Background spectrogram
\item[\Opt{threshold}]
	Points above the current threshold
\item[\Opt{points}]
	Points included in the current frequency excursion calculation
\item[\Opt{lines}]
	Lines connecting the peak points
\end{description}

\section{See Also}

\Opt{fex-help}(1)

\URL{http://wiki.behaviorenterprises.com/index.php?title=Frequency_Excursion}

\section{Author}
Copyright \copyright 2013-2014 Jesse McClure \\
License GPLv3: GNU GPL version 3 \URL{http://gnu.org/licenses/gpl.html} \\
This is free software: you are free to change and redistribute it. \\
There is NO WARRANTY, to the extent permitted by law.

Submit bug reports via the website: \\
\URL{http://behaviorenterprises.com/?page=software\&package=fex}

\LatexManEnd

\documentclass{latex2man}

\begin{Name}{1}{fex}{Jesse McClure}{Frequency Excusion Controls}{FEX --- The frequency excursion calculator}

\Prog{Fex} can be readily controlled with either the keyboard or a mouse
with a two-axis scroll wheel.

\end{Name}

\section{Directional Commands}

Direction commands are specified by holding a modifier key and
indicating the direction with a mouse scroll wheel, the home row
directional keys (h k j l), or cursor arrow keys.

\begin{Table}{5}
\\\hline
\Opt{Modifiers} &
	\Opt{Up} & \Opt{Down} & \Opt{Left} & \Opt{Right} \\\hline
\Arg{None} &
	scroll & scroll & scroll & scroll \\
&
	up & down & left & right \\
\\
\Arg{Control} &
	zoom & zoom & - & - \\
&
	in & out & & & \\
\\
\Arg{Alt} &
	bigger & smaller & narrow & wider \\
&
	eraser & eraser & eraser & eraser \\
\\
\Arg{Shift} &
	bigger & smaller & narrower & wider \\
&
	points & points & lines & lines \\
\\
\Arg{Control+Shift} &
	fewer & more & darker & lighter \\
&
	points & points & spectrogram & spectrogram \\\hline
\end{Table}

\section{Other Controls}

\begin{description}
\item[\Opt{Control+q}] Quit
\item[\Opt{Control+s}] Save an image of the current view
\item[\Opt{Shift+s}] Save an image of each layer of the current view
(layers: spectrogram, threshold overlay, points/lines overlay)
\item[\Opt{F1}] Show this help page
\item[\Opt{F2}] Toggle visibility of the tool window
\item[\Opt{t}] Toggle spectrogram layers
\item[\Opt{c}] Toggle crop mode
\item[\Opt{e}] Toggle eraser mode
\item[\Opt{Esc}] Return to normal mode
\item[\Opt{u}] Undo last erase, in erase mode only, up to 7 undo levels
\item[\Opt{p}] Play the currently displayed signal
\item[\Opt{Shift+p}] Play the currently displayed signal at half speed
\item[\Opt{Ctrl+p}] Play the currently displayed signal at 1/3 speed
\item[\Opt{Alt+p}] Play the currently displayed signal at 1/4 speed
\item[\Opt{Shift+Ctrl+p}] Play the currently displayed signal at 1/6 speed
\item[\Opt{Shift+Alt+p}] Play the currently displayed signal at 1/12 speed
\end{description}

\section{Tool Window}

The tool window displays the current cursor position and the currently
calculated frequency excursion.  The tool window also allows for
point-and-click access to the available modes.

\begin{description}
\item[\Opt{Erase}] Toggle erase mode
\item[\Opt{Crop}] \Arg{Left-click}: Toggle crop mode \Arg{Right-click}:
Undo all cropping
\end{description}


\section{See Also}

\Opt{fex}(1)

\LatexManEnd

'\" t
.\" Manual page created with latex2man on Wed Jul  2 13:29:59 EDT 2014
.\" NOTE: This file is generated, DO NOT EDIT.
.de Vb
.ft CW
.nf
..
.de Ve
.ft R

.fi
..
.TH "FEX" "1" "02 July 2014" "Frequency Excusion Controls " "Frequency Excusion Controls "
.SH NAME

.PP
Fex
can be readily controlled with either the keyboard or a mouse 
with a two\-axis scroll wheel. 
.PP
.SH DIRECTIONAL COMMANDS

.PP
Direction commands are specified by holding a modifier key and 
indicating the direction with a mouse scroll wheel, the home row 
directional keys (h k j l), or cursor arrow keys. 
.PP
.TS
tab(&);
l l l l l.
T{
T}
_
T{
\fBModifiers\fP
T}&T{
\fBUp\fP
T}&T{
\fBDown\fP
T}&T{
\fBLeft\fP
T}&T{
\fBRight\fP
T}
_
T{
\fINone\fP
T}&T{
scroll 
T}&T{
scroll 
T}&T{
scroll 
T}&T{
scroll 
T}
T{
T}&T{
up 
T}&T{
down 
T}&T{
left 
T}&T{
right 
T}
T{
T}
T{
\fIControl\fP
T}&T{
zoom 
T}&T{
zoom 
T}&T{
\- 
T}&T{
\- 
T}
T{
T}&T{
in 
T}&T{
out 
T}&T{
T}&T{
T}&T{
T}
T{
T}
T{
\fIAlt\fP
T}&T{
bigger 
T}&T{
smaller 
T}&T{
narrow 
T}&T{
wider 
T}
T{
T}&T{
eraser 
T}&T{
eraser 
T}&T{
eraser 
T}&T{
eraser 
T}
T{
T}
T{
\fIShift\fP
T}&T{
bigger 
T}&T{
smaller 
T}&T{
narrower 
T}&T{
wider 
T}
T{
T}&T{
points 
T}&T{
points 
T}&T{
lines 
T}&T{
lines 
T}
T{
T}
T{
\fIControl+Shift\fP
T}&T{
fewer 
T}&T{
more 
T}&T{
darker 
T}&T{
lighter 
T}
T{
T}&T{
points 
T}&T{
points 
T}&T{
spectrogram 
T}&T{
spectrogram 
T}
_
.TE
.PP
.SH OTHER CONTROLS

.PP
.TP
\fBControl+q\fP
 Quit 
.TP
\fBControl+s\fP
 Save an image of the current view 
.TP
\fBShift+s\fP
 Save an image of each layer of the current view 
(layers: spectrogram, threshold overlay, points/lines overlay) 
.TP
\fBF1\fP
 Show this help page 
.TP
\fBF2\fP
 Toggle visibility of the tool window 
.TP
\fBt\fP
 Toggle spectrogram layers 
.TP
\fBc\fP
 Toggle crop mode 
.TP
\fBe\fP
 Toggle eraser mode 
.TP
\fBEsc\fP
 Return to normal mode 
.TP
\fBu\fP
 Undo last erase, in erase mode only, up to 7 undo levels 
.TP
\fBp\fP
 Play the currently displayed signal 
.TP
\fBShift+p\fP
 Play the currently displayed signal at half speed 
.TP
\fBCtrl+p\fP
 Play the currently displayed signal at 1/3 speed 
.TP
\fBAlt+p\fP
 Play the currently displayed signal at 1/4 speed 
.TP
\fBShift+Ctrl+p\fP
 Play the currently displayed signal at 1/6 speed 
.TP
\fBShift+Alt+p\fP
 Play the currently displayed signal at 1/12 speed 
.PP
.SH TOOL WINDOW

.PP
The tool window displays the current cursor position and the currently 
calculated frequency excursion. The tool window also allows for 
point\-and\-click access to the available modes. 
.PP
.TP
\fBErase\fP
 Toggle erase mode 
.TP
\fBCrop\fP
 \fILeft\-click\fP:
Toggle crop mode \fIRight\-click\fP:
Undo all cropping 
.PP
.SH SEE ALSO

.PP
\fBfex\fP(1)
.PP
.\" NOTE: This file is generated, DO NOT EDIT.

'\" t
.\" Manual page created with latex2man on Wed Oct  1 12:46:47 EDT 2014
.\" NOTE: This file is generated, DO NOT EDIT.
.de Vb
.ft CW
.nf
..
.de Ve
.ft R

.fi
..
.TH "FEX" "1" "01 October 2014" "Frequency Excusion " "Frequency Excusion "
.SH NAME

.PP
Fex
\- The frequency excursion calculator 
.PP
.SH SYNOPSIS

.PP
fex
[\fB\-l\fP|\fB\-\-long\fP]
[\fB\-v\fP|\fB\-\-version\fP]
[\fB\-v\fP|\fB\-\-version\fP]
\fI<wave file>\fP
.PP
fex\-gtk
[\fB\-l\fP|\fB\-\-long\fP]
\fI<wave file>\fP
[\fI<wave file>\fP
\&.\&.\&.] 
.PP
.SH DESCRIPTION

.PP
Fex
is a bioacoustic analysis tool for calculating the frequency 
excursion of an audio recording of bird songs or other sound waves. 
.PP
Fex\-gtk
is a wrapper script for fex that facilitates batch 
processing of large numbers of wave files. Fex\-gtk
can be 
provided a list of file names, or can be run with no parameters to 
provide a dialog window to select input wave files. Fex
will be 
run on each input file, and the results can either be stored to a data 
file or displayed in a dialog window upon completion. 
.PP
Fex\-gtk
is also the executable target of fex.desktop
to 
allow for drag\-and\-drop operation of fex\&.
The desktop file can 
accept any number of wave files as a drop target. 
.PP
.SH OPTIONS

.PP
.TP
\fB\-l\fP|\fB\-\-long\fP
 Provide three column output specifying the path length, path 
duration, and frequency excursion (calculated as path length over 
duration). Default is to provide only the frequency excursion value. 
.TP
\fB\-h\fP|\fB\-\-help\fP
 Print help message and exit. 
.TP
\fB\-v\fP|\fB\-\-version\fP
 Print version information and exit. 
.PP
.SH CONFIGURATION

Fex
is configured via a runtime configuration file read from one 
of 
$XDG_CONFIG_HOME/fex/config,
$HOME/.config/fex/config,
$HOME/.fexrc,
or 
/usr/share/fex/config\&.
.PP
Read the example configuration file at /usr/share/fex/config
for 
a complete description of the available options. Those listed below are 
only the most likely to be changed. Settings not listed below should be 
changed only with caution. 
.PP
.SS SETTINGS
.PP
The options below are configured with the following format: 
.PP
\fBset\fP
\fIoption\fP
= \fIvalue\fP
.PP
.TP
\fBthreshold\fP
 Amplitude at which points can be considered part of the signal 
in dB below the maximum amplitude. 
.TP
\fBfloor\fP
 Sound floor for the spectrogram display 
in dB below the maximum amplitude. 
.TP
\fBbandpass\fP
 Hi pass and low pass filter values in kHz. 
.PP
.SS COLORS
.PP
Colors are configured with the following format where each setting is a 
floating point value between 0.00 and 1.00: 
.PP
\fBcolor\fP
\fIelement\fP
= \fIRed\fP
\fIGreen\fP
\fIBlue\fP
\fIAlpha\fP
\fIWidth\fP
.PP
.TP
\fBspectrogram\fP
 Background spectrogram 
.TP
\fBthreshold\fP
 Points above the current threshold 
.TP
\fBpoints\fP
 Points included in the current frequency excursion calculation 
.TP
\fBlines\fP
 Lines connecting the peak points 
.PP
.SH SEE ALSO

.PP
\fBfex\-help\fP(1)
.PP
\fBhttp://wiki.behaviorenterprises.com/index.php?title=Frequency_Excursion\fP
.PP
.SH AUTHOR

Copyright (C)2013\-2014 Jesse McClure 
.br
License GPLv3: GNU GPL version 3 \fBhttp://gnu.org/licenses/gpl.html\fP
.br
This is free software: you are free to change and redistribute it. 
.br
There is NO WARRANTY, to the extent permitted by law. 
.PP
Submit bug reports via the website: 
.br
\fBhttp://behaviorenterprises.com/?page=software&package=fex\fP
.PP
.\" NOTE: This file is generated, DO NOT EDIT.

###FEX Distibion and packaging

For distributions equipped to build from git sources (e.g. Archlinux),
all packaging materials will be provided in subdirectories here.

For other distrobutions, I will work on making suitable packaging materials
available and/or will gladly accept pull requests from those who are more
familiar with other distros.  The directories for such distros contain the
materials I currently use to build packages for those targets.

Binary and/or source packages will be available at the site below as they
become available:

http://behaviorenterprises.com/repo/

####Dependencies

The following packages and all their dependencies are required.

+ cairo
+ desktop-file-utils
+ fftw
+ libxpm
+ libsndfile
+ python2

Dependencies for building fex include the above packages, along with any
associated -dev or -devel packages for distros that use split packages, and,
of course, git to pull the source code.

####Building

There is no need to configure:

```bash
git clone http://github.com/TrilbyWhite/fex.git
cd fex
make
```

####Installation

make install accepts DESTDIR and PREFIX variables:

```bash
make DESTDIR=/path/to/pkgdir PREFIX=/usr install
```

# Maintainer: Jesse AKA "Trilby" <jesse [at] mcclurek9 [dot] com>
_gitname="fex"
pkgname="${_gitname}-git"
pkgver=2.0
pkgrel=1
pkgdesc='Frequency Excursion Calculator'
url='http://github.com/TrilbyWhite/fex.git'
arch=('i686' 'x86_64')
license=('GPL3')
depends=('cairo' 'desktop-file-utils' 'fftw' 'libxpm' 'libsndfile' 'python2' 'pygtk' 'sox')
makedepends=('git')
install="${_gitname}.install"
source=("${_gitname}::git://github.com/TrilbyWhite/fex.git")
sha256sums=('SKIP')

pkgver() {
	cd "${_gitname}";
	echo "2.$(git rev-list --count HEAD).$(git describe --always )"
}

build() {
	cd "${_gitname}"
	make
}

package() {
	cd "${_gitname}"
	make DESTDIR="${pkgdir}" install
}

post_install() {
	update-desktop-database -q
}

post_upgrade() {
	post_install $1
}

post_remove() {
	post_install $1
}

makedeb is experimental - use at your own risk.

The goal is to be able to build debian packages from an rpm spec file -
or something very close to it.

26 Sept 2014 - makedeb succesfully built an installable deb package on ubunt 14

summary: Frequency Excursion Calculator
name: fex
version: 2
release: 1
license: GPL3
group: Applications/Science
source: https://github.com/BehaviorEnterprises/Fex.git
url: https://wiki.BehaviorEnterprises.com
vendor: Behavior Enterprises
packager: Jesse McClure <jesse@mccluresk9.com>
requires: desktop-file-utils, libasound2, libcairo2, libfftw3-3, libsndfile1, libxpm4, python, python-gtk2
buildrequires: libasound2-dev, libcairo2-dev, libfftw3-dev, gcc, libsndfile1-dev, libx11-dev, libxpm-dev, pkg-config
prefix: /usr

%description
Frequency Excursion Calculator

%prep
%setup -c

%build
make

%install
make "DESTDIR=${RPM_BUILD_ROOT}" install

%clean
rm -rf "${RPM_BUILD_ROOT}"

%post
update-desktop-database -q

%postun
update-desktop-database -q

%files
/usr/bin/fex
/usr/bin/fex-gtk
/usr/share/applications/
/usr/share/applications/fex.desktop
/usr/share/fex/
/usr/share/fex/config
/usr/share/man/man1/fex-help.1.gz
/usr/share/man/man1/fex.1.gz
/usr/share/pixmaps/fex.png

#!/bin/bash

## VERSION:
#V#MakeDEB
#V#  version 1.0, copyright 2014, Jesse McClure
#V#  license: CC-BY-SA https://creativecommons.org/licenses/by-sa/2.0/
## HELP:

if [[ -n $1 ]]; then
	case $1 in
		-h|--help|help) awk '/^#[VH]#/ { sub(/^#[VH]#/,""); print $0; }' $0 ;;
		-v|--ver*|ver*) awk '/^#V#/ { sub(/^#V#/,""); print $0; }' $0 ;;
	esac
	exit
fi

start_dir=$(pwd)

spec=$(find  -maxdepth 1 -name "*.spec")
if [[ ! -f ${spec} ]]; then
	echo "No spec file found"
	exit 1
fi

## GET VALUES FROM SPEC FILE:
pkgbase=$(awk -F ': ' '/^name:/ { print $2; }' ${spec})
pkgname=$(basename ${spec})
pkgname=${pkgname/\.spec/}
git_url=$(awk -F ': ' '/^source:/ { print $2; }' ${spec})
pkgver_base=$(awk -F ': ' '/^version:/ { print $2; }' ${spec})
email=$(awk -F ': ' '/^packager:/ { print $2; }' ${spec})
license=$(awk -F ': ' '/^license:/ { print $2; }' ${spec})
upstream_url=$(awk -F ': ' '/^url:/ { print $2; }' ${spec})
description=$(awk -F ': ' '/^summary:/ { print $2; }' ${spec})
section=$(awk -F ': ' '/^group:/ { print $2; }' ${spec})
build_deps=$(awk -F ': ' '/^buildrequires:/ { print $2; }' ${spec})
deps=$(awk -F ': ' '/^requires:/ { print $2; }' ${spec})

## CHECK BUILD ENVIRONMENT:
#sudo apt-get install build-essential autoconf automake autotools-dev dh-make debhelper devscripts fakeroot xutils lintian pbuilder
topdir=/tmp/makeDEB
rm -rf ${topdir}/${pkgname}
mkdir -p ${topdir}/${pkgname}

## GET CODE AND MAKE SOURCE TARBALL:
if [[ -d ${pkgname} ]]; then
	cd ${pkgname};
	git pull;
else
	git clone ${git_url} ${pkgname}
	cd ${pkgname}
fi
pkgver="${pkgver_base}.$(git rev-list --count HEAD)"
make dist
mv ${pkgbase}*.tar.gz ${topdir}/${pkgname}/${pkgname}-${pkgver}.tar.gz

## BUILD FOLDER PREPARATION
cd ${start_dir}
mv ${pkgname} ${topdir}/${pkgname}/${pkgname}-${pkgver}

## DEBIANIZE
cd ${topdir}/${pkgname}/${pkgname}-${pkgver}
dh_make													\
	--copyright "${license}"						\
	--email "${email}"								\
	--file "../${pkgname}-${pkgver}.tar.gz"	\
	--single												\
	--yes

## EDIT CONTROL FILE
sed -i 's|^Depends:.*|Depends: '"${deps}"'|' debian/control
sed -i 's|^Build-Depends:.*|Build-Depends: '"${build_deps}"'|' debian/control
sed -i 's|^Maintainer:.*|Maintainer: '"${email}"'|' debian/control
sed -i 's|^Homepage:.*|Homepage: '"${upstream_url}"'|' debian/control
sed -i 's|^Description:.*|Description: '"${description}"'|' debian/control
sed -i 's|^Section:.*|Section: '"${section}"'|' debian/control

## CREATE CHANGELOG
#echo "${pkgname} (${pkgver}-1) unstable; urgency=low" > debian/changelog
#echo "* Initial release" >> debian/changelog
#echo "-- ${maintainer} <${email}> " >> debian/changelog

## BUILD THE PACKAGE
dpkg-buildpackage

## CLEAN UP:
cd ${startdir}

makerpm uses rpmbuild and a slightly modified spec file (allowing a git
source) to build an installable rpm file.

Currently makerpm is being developed and tested on Fedora 20.

TODO:
	find dependency for asoundlib.h

summary: Frequency Excursion Calculator
name: fex
version: 2
release: 1
license: GPL3
group: Applications/Science
source: https://github.com/BehaviorEnterprises/Fex.git
url: https://wiki.BehaviorEnterprises.com
vendor: Behavior Enterprises
packager: Jesse McClure jesse [at] mccluresk9 [dot] com
requires: cairo, desktop-file-utils, fftw, libsndfile, libXpm, python, pygtk2, sox
buildrequires: cairo-devel, fftw-devel, gcc, libsndfile-devel, libX11-devel, libXpm-devel, pkgconfig
prefix: /usr

%description
Frequency Excursion Calculator

%prep
%setup -c

%build
make

%install
make "DESTDIR=${RPM_BUILD_ROOT}" install

%clean
rm -rf "${RPM_BUILD_ROOT}"

%post
update-desktop-database -q

%postun
update-desktop-database -q

%files
/usr/bin/fex
/usr/bin/fex-gtk
/usr/share/applications/
/usr/share/applications/fex.desktop
/usr/share/fex/
/usr/share/fex/config
/usr/share/man/man1/fex-help.1.gz
/usr/share/man/man1/fex.1.gz
/usr/share/pixmaps/fex.png

#!/bin/bash

## VERSION:
#V#MakeRPM
#V#  version 1.0, copyright 2014, Jesse McClure
#V#  license: CC-BY-SA https://creativecommons.org/licenses/by-sa/2.0/
## HELP:
#H#
#H#makerpm will look in the current working directory for a spec file with
#H#the following requirements:
#H#
#H#1) The "source" line should provide a full git url from which the source
#H#can be cloned
#H#
#H#2) The "version" line should provide only a base number upon which the
#H#commit count will be appended
#H#
#H#The upstream git source must also include a Makefile in the toplevel
#H#directory with a directive called 'dist' which will make a source
#H#tarball (.tar.gz) in that same directory.
#H#
#H#makerpm will 1) revise the source and version lines in a copy placed in
#H#rpmbuild's topdir/SPECS/ folder, 2) install the build dependencies if it
#H#is the first build for the package on the machine, 3) obtain the git
#H#source, 4) make the tarball and move it to topdir/SOURCES/, 5) build the
#H#rpm and srpm, and 6) clean up / remove the cloned git dir.

if [[ -n $1 ]]; then
	case $1 in
		-h|--help|help) awk '/^#[VH]#/ { sub(/^#[VH]#/,""); print $0; }' $0 ;;
		-v|--ver*|ver*) awk '/^#V#/ { sub(/^#V#/,""); print $0; }' $0 ;;
	esac
	exit
fi
exit

start_dir=$(pwd)

## CHECK FOR SPEC FILE:
spec=$(find -name "*.spec")
if [[ ! -f ${spec} ]]; then
	echo "No spec file found"
	return
fi

## GET VALUES FROM SPEC FILE:
pkgname=$(awk '/^name:/ { print $2; }' ${spec})
git_url=$(awk '/^source:/ { print $2; }' ${spec})
pkgver_base=$(awk '/^version:/ { print $2; }' ${spec})

return

## CHECK BUILD ENVIRONMENT:
topdir=$(rpmbuild --eval '%_topdir')
mkdir -p ${topdir}/{BUILD,RPMS,SOURCES,SPECS,SRPMS}

## INSTALL BUILD DEPS IF FIRST BUILD:
builds=$(find ${topdir}/RPMS/ -name "${pkgname}*")
[[ -z $builds ]] && sudo yum-builddep ${spec}

## GET CODE AND MAKE SOURCE TARBALL:
git clone ${git_url}
cd ${pkgname}
pkgver="${pkgver_base}.$(git rev-list --count HEAD)"
make dist
mv ./${pkgname}*.tar.gz ${topdir}/SOURCES/${pkgname}-${pkgver}.tar.gz

## PREPARE SPEC FILE:
cd ${start_dir}
cp ${spec} ${topdir}/SPECS/
cd ${topdir}/SPECS/
sed -i 's/^version: .*$/version: '${pkgver}'/' ${pkgname}.spec
sed -i 's/^source: .*$/source: '${pkgname}-${pkgver}'.tar.gz/' ${pkgname}.spec

## RUN RPMBUILD:
cd ${topdir}/SPECS
rpmbuild -ba ${pkgname}.spec

## CLEAN UP:
cd ${startdir}
rm -rf ${pkgname}

## FEX Configuration
##
##  Copy this file to one of the following locations for editing
##    $XDG_CONFIG_HOME/fex/config
##    $HOME/.config/fex/config
##    $HOME/.fexrc

## Lines starting with a '#' sign are ignored as comments
##  but this file is not parsed by a shell interpreter.

## Entries should be of one of two forms: 'set' or 'color'
##   set <parameter> = <values>
##   color <parameter> = <Red> <Green> <Blue> <Alpha> <Width>

## Settings
##   threshold: decibels below the peak amplitude to include in signal
##   floor: decibels below the peak amplitude to show in the spectrogram
##   samples: number of samples per window for FFT
##   bandpass: bandpass filter in kHz
##   scale: number of graphical units per data unit
##   window: one of the following window functions for the FFT
##     hanning, hamming, blackman, nutall, blackman-nutall,
##     blackman-harris, rectangular, custom
##       Custom must be followed by up to 4 numbers specifying the
##       coefficients for a generalized cosine window function
##   fontFamily: font name
##   fontSize: font size in pixels
##   help: command for launching the help page
##   output: any combination of the following:
##     path: print path length
##     time: print path duration
set threshold  = 18.0
set floor      = 30.0
set samples    = 256
set bandpass   = 1.25 10.0
set scale      = 8
set window     = hanning
set fontFamily = droid sans
set fontSize	= 14
set help       = xterm -e man fex-help

## Colors
##   spectrogram: background spectrogram
##   threshold: points included in the signal
##   points: points included in the current excursion calculation
##   lines: lines connecting points in the current calculation
##   eraser1/2: two colors for eraser block
##   crop: crop window lines
color spectrogram   0.0 0.0 0.0 1.0 1.0
color threshold     0.0 1.0 0.8 0.4 1.0
color points        0.0 0.1 0.5 0.8 8.0
color lines         1.0 0.0 0.0 0.8 4.0
color eraser1       1.0 1.0 0.6 1.0 1.0
color eraser2       1.0 0.6 0.6 1.0 1.0
color crop          0.0 1.0 0.2 1.0 2.0

## NOTES:
## For more information on configuring and using Fex, please see
## http://wiki.behaviorenterprises.com/?title=Frequency_Excursion

[Desktop Entry]
Name=Fex
Comment=Calculates the frequency excursion of a sound wave
Exec=fex-gtk %F
#Exec=fex-gtk --long %F
Terminal=false
Type=Application
Categories=Science
Icon=/usr/share/pixmaps/fex.png
MimeType=audio/*

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/

#include "fex.h"


#define CONF_SET	0x01
#define CONF_COL	0x02


#define C_TYPE__	0x00
#define C_TYPE_D	0x01
#define C_TYPE_F	0x02
#define C_TYPE_LF	0x03
#define C_TYPE_S	0x04
#define C_TYPE_LN	0x05

#define STRING(s)		STRINGIFY(s)
#define STRINGIFY(s)	#s
#define LINE_LEN		256

static WindowFunction custom;
static WindowFunction windows[] = {
	{ "hanning",         {0.5,       0.5,       0.0,       0.0}       },
	{ "hamming",         {0.54,      0.46,      0.0,       0.0}       },
	{ "blackman",        {0.42659,   0.49656,   0.076849,  0.0}       },
	{ "nuttall",         {0.355768,  0.487396,  0.144232,  0.012604}  },
	{ "blackman-nutall", {0.3635819, 0.4891775, 0.1365995, 0.0106411} },
	{ "blackman-harris", {0.35875,   0.48829,   0.14128,   0.01168}   },
	{ "rectangular",     {1.0,       0.0,       0.0,       0.0}       },
};

static inline void version() {
	printf(STRING(PROGRAM_NAME) " v" STRING(PROGRAM_VER)
", Copyright © 2013-2014 Jesse McClure <www.behaviorenterprises.com>\n"
"You should have received a copy of the GNU General Public License\n"
"along with this program.  If not, see <http://www.gnu.org/licenses/>.\n");
	 exit(0);
}

static inline void help() {
	printf("\n"
		"USAGE\n  " STRING(PROGRAM_NAME) " <options> <wavefile>\n\n"
		"OPTIONS\n"
		"  -l|--long                long output (path, duration, + FE)\n"
		"  -v|--version             show version information then exit\n"
		"  -h|--help                show help information then exit\n\n"
		"SEE ALSO\n"
		"  fex(1) and fex-help(1)\n"
		"\n" );
	exit(0);
}

const char *configure(int argc, const char **argv) {
	int i;
	/* set defaults */
	const char *arg, *fname = NULL, *rcname = NULL;
	char help_cmd[256] = "xterm -e man man";
	conf.help_cmd = NULL;
	conf.long_out = False;
	conf.layers = True;
	/* process command line */
	for (i = 1; i < argc; i++) {
		arg = argv[i];
		if (strncmp(arg,"--h",3) == 0 || strncmp(arg,"-h",2) == 0)
			help();
		else if (strncmp(arg,"--v",3) == 0 || strncmp(arg,"-v",2) == 0)
			version();
		else if (strncmp(arg,"--l",3) == 0 || strncmp(arg,"-l",2) == 0)
			conf.long_out = True;
		else if (strncmp(arg,"-c",2) == 0 && (++i) < argc)
			rcname = argv[i];
		else
			fname = argv[i];
	}
	if (!fname) die("no audio file provided");
	/* find configuration file */
	FILE *rc = NULL;
	char *pwd = getenv("PWD");
	if (rcname) rc = fopen(rcname,"r");
	else if ( (!chdir(getenv("XDG_CONFIG_HOME")) && !chdir("fex")) ||
			(!chdir(getenv("HOME")) && !chdir(".config/fex")) )
		rc = fopen("config","r");
	if (!rc && !chdir(getenv("HOME"))) rc = fopen(".fexrc","r");
	chdir(pwd);
	if (!rc) rc = fopen("/usr/share/fex/config","r");
	if (!rc) die("unable to open configuration file");
	/* initialize conf structure and config reading variables */
	char line[LINE_LEN], prefix[32], option[32], fmt[LINE_LEN];
	char window[32], font_fam[LINE_LEN];
	const char *fspec[] = { "", "%d ","%f ", "%lf ", "%s", "%[^\n]" };
	int j, mode;
	conf.thresh = 14.0;
	conf.spect_floor = 40.0;
	conf.hipass = 12.0;
	conf.lopass = 800.0;


	conf.winlen = 256;
	conf.hop = 0;
	conf.win = (WindowFunction *) windows;
	struct {
		const char *name;
		int mode;
		int type[5];
		void *var[5];
	} cf[] = {
		#include "config.h"
	};
	/* read config file */
	while (fgets(line,LINE_LEN,rc)) {
		if (line[0] == '#' || line[0] == '\n') continue;
		sscanf(line,"%s %s",prefix,option);
		if (strncasecmp(prefix,"set",3) == 0) mode = CONF_SET;
		else if (strncasecmp(prefix,"col",3) == 0) mode = CONF_COL;
		else fprintf(stderr,"bad config entry: %s",line);
		sprintf(fmt,"%s %s ",prefix,option);
		if (mode == CONF_SET) strcat(fmt,"= ");
		for (i = 0; i < sizeof(cf) / sizeof(cf[0]); i++) {
			if ( !strncasecmp(option,cf[i].name,strlen(cf[i].name)) &&
					cf[i].mode == mode ) {
				for (j = 0; j < 5; j++) strcat(fmt,fspec[cf[i].type[j]]);
				sscanf(line,fmt,cf[i].var[0],cf[i].var[1],cf[i].var[2],
						cf[i].var[3],cf[i].var[4]);
			}
		}
	}
	/* set hop, threshold, floor, and windowing function */
	if (!conf.hop) conf.hop = conf.winlen / 4;



	conf.thresh *= -1;
	conf.spect_floor *= -1;
	if (strncasecmp(window,"custom",6) == 0)
		conf.win = (WindowFunction *) &custom;
	else if (strlen(window))
		for (i = 0; i < sizeof(windows)/sizeof(windows[0]); i++)
			if (!strncasecmp(window,windows[i].type,strlen(window)))
				conf.win = (WindowFunction *) &windows[i];
	/* set fonts */
	conf.font = cairo_toy_font_face_create(font_fam, CAIRO_FONT_SLANT_NORMAL,
			CAIRO_FONT_WEIGHT_NORMAL);
	conf.bfont = cairo_toy_font_face_create(font_fam, CAIRO_FONT_SLANT_NORMAL,
			CAIRO_FONT_WEIGHT_BOLD);
	/* prep 'help' function */
	char *help_arg = strtok(help_cmd," ");
	for (i = 0; help_arg; i++) {
		conf.help_cmd = realloc(conf.help_cmd, (i+2) * sizeof(char *));
		conf.help_cmd[i] = strdup(help_arg);
		conf.help_cmd[i+1] = NULL;
		help_arg = strtok(NULL," ");
	}
	/* return audio file name */
	return fname;
}

int deconfigure() {
	/* clean up, free data */
	int i;
	for (i = 0; conf.help_cmd[i]; i++) free(conf.help_cmd[i]);
	free(conf.help_cmd);
	cairo_font_face_destroy(conf.font);
	cairo_font_face_destroy(conf.bfont);
	return 0;
}

/**********************************************************************\
* CONFIG.C
* Part of FEX, see FEX.C for complete license information
* Author: Jesse McClure, copyright 2013-2015
* License; GPL3















\**********************************************************************/

#include "fex.h"
#include "fex_struct.h"



// TODO: this module is just a placeholder for now























































































fex_t configure(FEX *fex) {
	if (!fex) return FexNullAccess;
	fex->conf.winlen = 256;
	fex->conf.hop = 64;





























	fex->conf.lopass = 1.25;
	fex->conf.hipass = 10.0;
	fex->conf.floor = -28.0;
	fex->conf.threshold = -14.0;































	return FexSuccess;
}

/* set */
{ "threshold", CONF_SET,
	{ C_TYPE_LF, C_TYPE__, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ &conf.thresh, NULL, NULL, NULL, NULL}, },
{ "floor", CONF_SET,
	{ C_TYPE_LF, C_TYPE__, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ &conf.spect_floor, NULL, NULL, NULL, NULL}, },
{ "samples", CONF_SET,
	{ C_TYPE_D, C_TYPE__, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ &conf.winlen, NULL, NULL, NULL, NULL}, },
{ "hop", CONF_SET,
	{ C_TYPE_D, C_TYPE__, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ &conf.hop, NULL, NULL, NULL, NULL}, },
{ "bandpass", CONF_SET,
	{ C_TYPE_LF, C_TYPE_LF, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ &conf.hipass, &conf.lopass, NULL, NULL, NULL}, },
{ "scale", CONF_SET,
	{ C_TYPE_D, C_TYPE_LF, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ &conf.scale, NULL, NULL, NULL, NULL}, },
{ "window", CONF_SET,
	{ C_TYPE_S, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF },
	{ window, &custom.a[0], &custom.a[1], &custom.a[2], &custom.a[3]}, },
{ "fontFamily", CONF_SET,
	{ C_TYPE_LN, C_TYPE__, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ font_fam, NULL, NULL, NULL, NULL}, },
{ "fontSize", CONF_SET,
	{ C_TYPE_D, C_TYPE__, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ &conf.font_size, NULL, NULL, NULL, NULL}, },
{ "help", CONF_SET,
	{ C_TYPE_LN, C_TYPE__, C_TYPE__, C_TYPE__, C_TYPE__ },
	{ &help_cmd, NULL, NULL, NULL, NULL}, },

/* color */
{ "spectrogram", CONF_COL,
	{ C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF },
	{ &conf.col[0].r, &conf.col[0].g, &conf.col[0].b, &conf.col[0].a,
			&conf.col[0].w } },
{ "threshold", CONF_COL,
	{ C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF },
	{ &conf.col[1].r, &conf.col[1].g, &conf.col[1].b, &conf.col[1].a,
			&conf.col[1].w } },
{ "points", CONF_COL,
	{ C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF },
	{ &conf.col[2].r, &conf.col[2].g, &conf.col[2].b, &conf.col[2].a,
			&conf.col[2].w } },
{ "lines", CONF_COL,
	{ C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF },
	{ &conf.col[3].r, &conf.col[3].g, &conf.col[3].b, &conf.col[3].a,
			&conf.col[3].w } },
{ "eraser1", CONF_COL,
	{ C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF },
	{ &conf.col[4].r, &conf.col[4].g, &conf.col[4].b, &conf.col[4].a,
			&conf.col[4].w } },
{ "eraser2", CONF_COL,
	{ C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF },
	{ &conf.col[5].r, &conf.col[5].g, &conf.col[5].b, &conf.col[5].a,
			&conf.col[5].w } },
{ "crop", CONF_COL,
	{ C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF, C_TYPE_LF },
	{ &conf.col[6].r, &conf.col[6].g, &conf.col[6].b, &conf.col[6].a,
			&conf.col[6].w } },

#!/usr/bin/env python2
#----------------------------------------------------------------------#
# FEX - The Frequency Excursion Calculator
#
# Author: Jesse McClure, copyright 2013-2014
# License: GPL3
#
#    This program is free software: you can redistribute it and/or
#    modify it under the terms of the GNU General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful, but
#    WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#    General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see
#    <http://www.gnu.org/licenses/>.
#
#----------------------------------------------------------------------#

import sys
import os
import subprocess
import pygtk
import gtk

def main(argv):
	if (len(argv) > 0) and (argv[0] == "--long"):
		opt_long = True
		del argv[0]
	else:
		opt_long = False
	if (len(argv) == 0):
		filelist = input_files()
	else:
		filelist = argv
	if (len(filelist) == 0):
		sys.exit(0)
	if (opt_long):
		data = "Song\tPath\tTime\tFEX\n"
	else:
		data = "Song\tFEX\n"
	for filename in filelist:
		song = os.path.splitext(os.path.basename(filename))[0]
		try:
			if (opt_long):
				FE = subprocess.check_output(["fex","--long",filename])
			else:
				FE = subprocess.check_output(["fex",filename])
		except subprocess.CalledProcessError as err:
			FE = "NA\n"
		data = data + song + "\t" + FE
	if (len(filelist) == 1):
		filename = ""
	else:
		filename = data_file()
	if (len(filename) == 0):
		label = gtk.Label(data)
		win = gtk.Dialog("Fex", None,
				gtk.DIALOG_DESTROY_WITH_PARENT,
				(gtk.STOCK_OK, gtk.RESPONSE_ACCEPT))
		win.vbox.pack_start(label)
		label.show()
		win.run()
	else:
		fptr = open(filename,"w")
		fptr.write(data)

def input_files():
	win = gtk.FileChooserDialog("Open ...", None,
			gtk.FILE_CHOOSER_ACTION_OPEN,
			(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
			gtk.STOCK_OPEN, gtk.RESPONSE_OK))
	win.set_default_response(gtk.RESPONSE_OK)
	win.set_select_multiple(True)
	# wave filter
	filter = gtk.FileFilter()
	filter.set_name("Waves")
	filter.add_pattern("*.wav")
	filter.add_pattern("*.WAV")
	win.add_filter(filter)
	# alternative filter
	filter = gtk.FileFilter()
	filter.set_name("All files")
	filter.add_pattern("*")
	win.add_filter(filter)
	# get files
	response = win.run()
	if (response == gtk.RESPONSE_OK):
		filelist = win.get_filenames()
	else:
		filelist = []
	win.destroy()
	while gtk.events_pending():
	   gtk.main_iteration(False)
	return filelist

def data_file():
	win = gtk.FileChooserDialog("Save As ...", None,
			gtk.FILE_CHOOSER_ACTION_SAVE,
			(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
			gtk.STOCK_OPEN, gtk.RESPONSE_OK))
	win.set_default_response(gtk.RESPONSE_OK)
	win.set_do_overwrite_confirmation(True);
	response = win.run()
	if (response == gtk.RESPONSE_OK):
		filename = win.get_filename()
	else:
		filename = ""
	win.destroy()
	return filename

if (__name__ == "__main__"):
	main(sys.argv[1:])

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*


* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*

*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/


#include "fex.h"


int die(const char *msg, ...) {
	va_list arg;
	fprintf(stderr,"Fatal Error: ");
	va_start(arg, msg);
	vfprintf(stderr,msg,arg);
	va_end(arg);
	exit(1);



}


int main(int argc, const char **argv) {
	const char *fname = configure(argc,argv);
	Wave *wav = create_wave(fname);
	FFT *fft = create_fft(wav);
	create_spectro(fft, fname);
	free_wave(&wav);



	xlib_event_loop();
	if (spect->fex > 0 && conf.long_out)
		fprintf(stdout,"%.3lf\t%.3lf\t%.3lf\n",
				spect->pex, spect->tex, spect->fex);
	else if (spect->fex > 0)
		fprintf(stdout,"%.3lf\n", spect->fex);
	else if (conf.long_out)
		fprintf(stdout,"NA\tNA\tNA\n");





















































	else
		fprintf(stdout,"NA\n");





	free_spectro();
	free_fft(&fft);
	deconfigure();










	return 0;
}

#include <math.h>
#include "fex.h"
#include "fex_struct.h"


extern fex_t read_wave(FEX *);
extern fex_t free_wave(FEX *);
extern fex_t configure(FEX *);
extern fex_t create_fft(FEX *);
extern fex_t destroy_fft(FEX *);

static fex_t fex_populate(FEX *);
static fex_t fex_depopulate(FEX *);
static FEX *fex_ptr(fex_t);
static int fex_make_path(FEX *);

static unsigned char *spec_data = NULL;
static FEX **fex_p = NULL;
static int nfex = 0;



/**********************/
/* exported functions */
/**********************/

fex_t fex_create(const char *fname) {

	fex_p = realloc(fex_p, (++nfex) * sizeof(FEX *));
	fex_p[nfex-1] = malloc(sizeof(FEX));
	fex_t ret;
	if (fex_p[nfex-1]) {
		fex_p[nfex-1]->wave.name = fname;
		ret = fex_populate(fex_p[nfex-1]);
		if (ret < 0) return ret;
		else return nfex-1;
	}
	return FexMallocError;
}







fex_t fex_destroy(fex_t fex_n) {
	if (spec_data) free(spec_data);
	spec_data = NULL;
	fex_t ret;
	if ( (ret=fex_depopulate(fex_p[fex_n])) < 0 ) return ret;
	free(fex_p[fex_n]);
	fex_p[fex_n] = NULL;
	return ret;


}

#define square(x)  (x)*(x)
unsigned char *fex_get_spectrogram(fex_t fex_n, int *w_ptr, int *h_ptr) {
	FEX *fex = fex_ptr(fex_n);
	if (!fex) return NULL;
	int w = fex->fft.ntime;
	int h = fex->fft.nfreq;

	spec_data = realloc(spec_data, w * h * 3);
	// TODO error checking, speed of loop order?
	int t, f;
	unsigned char *a = spec_data;
unsigned char adj = 0.5 + 255.0 * fex->conf.threshold / fex->conf.floor;
	for (f = 0; f < h; ++f) for (t = 0; t < w; ++t) {
// TODO clean up!
//double dd = square(-sqrt(255.0) * fftAmp(fex,t,f) / fex->conf.floor);
double dd =  255.0 * fftAmp(fex,t,f) / fex->conf.floor;
unsigned char aa = dd;
if (dd > 255) aa = 255;
if (dd < 0) aa = 0;
		a[0] = a[1] = a[2] = aa;
		if (aa < adj) a[1] = a[2] = aa + 255-adj;
		a += 3;
	}
	*w_ptr = w;
	*h_ptr = h;
	fex_make_path(fex);
	return spec_data;
}

int *fex_get_path(fex_t fex_n) {
	FEX *fex = fex_ptr(fex_n);
	return fex->fft.path;
}

int fex_threshold(fex_t fex_n, float adj) {
	FEX *fex = fex_ptr(fex_n);
	fex->conf.threshold += adj;
	fex_make_path(fex);
	return 0;
}

#define dist(x,y)     sqrt((x)*(x)+(y)*(y))
double fex_measure(fex_t fex_n, double *len_ptr, double *duration_ptr) {
	FEX *fex = fex_ptr(fex_n);
	int t, f;
	double prev_t = -1.0, prev_f, start, end;
	long double sum = 0.0;
	for (t = 0; t < fex->fft.ntime; ++t) {
		if ( (f=fex->fft.path[t]) < 0 ) continue;
		if (prev_t > 0)
			sum += dist(fex->fft.time[t] - prev_t, fex->fft.freq[f] - prev_f);
		else

			start = fex->fft.time[t];
		prev_t = fex->fft.time[t];
		prev_f = fex->fft.freq[f];
		end = fex->fft.time[t];
	}



	if (len_ptr) *len_ptr = sum;
	if (duration_ptr) *duration_ptr = end - start;
	return sum / (end - start);
}


int fex_coordinates(fex_t fex_n, double pt, double pf, double *time_ptr, double *freq_ptr) {
	FEX *fex = fex_ptr(fex_n);
	if (time_ptr) *time_ptr = fex->fft.time[(int) (pt * fex->fft.ntime)];
	if (freq_ptr) *freq_ptr = fex->fft.freq[(int) (pf * fex->fft.nfreq)];
	return 0;
}

/*******************/
/* local functions */
/*******************/


int fex_make_path(FEX *fex) {
	int t, f;
	double max;
	for (t = 0; t < fex->fft.ntime; ++t) {
		max = -1.0 * INFINITY;
		fex->fft.path[t] = -1;
		for (f = 0; f < fex->fft.nfreq; ++f) {
			if (fftAmp(fex,t,f) < fex->conf.threshold)
				continue;
			if (fftAmp(fex,t,f) > max)
				max = fftAmp(fex,t, (fex->fft.path[t]=f));
		}
	}
	return 0;
}


FEX *fex_ptr(fex_t fex_n) {
	if (fex_n >= nfex) return NULL;
	else return fex_p[fex_n];
}

fex_t fex_populate(FEX *fex) {
	if (!fex) return FexNullAccess;
	fex_t ret;
	if ( (ret=read_wave(fex)) < 0 ) return ret;
	if ( (ret=configure(fex)) < 0 ) return ret;
	if ( (ret=create_fft(fex)) < 0 ) return ret;
	fex->fft.path = malloc(fex->fft.ntime * sizeof(int));
}

fex_t fex_depopulate(FEX *fex) {
	if (!fex) return FexNullAccess;
	fex_t ret;
	if (fex->fft.path) free(fex->fft.path);
	fex->fft.path = NULL;
	if ( (ret=destroy_fft(fex)) < 0 ) return ret;
	if ( (ret=free_wave(fex)) < 0 ) return ret;
}

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/

#ifndef __FEX_H__
#define __FEX_H__

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <locale.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <X11/XKBlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/xpm.h>
#include <string.h>
#include <sndfile.h>
#include <fftw3.h>
#include <math.h>
#include <cairo.h>
#include <cairo-xlib.h>
#include <cairo-ft.h>
#include <alsa/asoundlib.h>

#define RGBA_SPECT	0x00
#define RGBA_THRESH	0x01
#define RGBA_POINTS	0x02
#define RGBA_LINES	0x03
#define RGBA_ERASE1	0x04
#define RGBA_ERASE2	0x05
#define RGBA_CROP		0x06
#define RGBA_LAST		0x07


#define set_color(x,n)	{	\
	cairo_set_source_rgba(x, conf.col[n].r, conf.col[n].g,	\
			conf.col[n].b, conf.col[n].a);							\
	cairo_set_line_width(x, conf.col[n].w);						\
}

typedef struct Wave {
	double *d;
	int samples;
	int rate;
} Wave;

typedef struct FFT {
	double **amp;
	double *time;
	double *freq;
	double max, min;
	int nfreq, ntime;
	char **mask;
} FFT;








typedef struct WindowFunction {
	const char *type;
	double a[4];
} WindowFunction;

typedef struct Spectro {
	const char *fname;
	char *name;
	unsigned char *a_spec, *a_thresh;
	cairo_surface_t *m_spec, *m_thresh, *s_points;
	FFT *fft;
	int fft_x, fft_y, fft_w, fft_h, fft_lo, fft_hi;
	double pex, tex, fex;
} Spectro;

typedef struct RGBA {
	double r, g, b, a, w;
} RGBA;

typedef struct Config {
	double thresh, spect_floor;
	double hipass, lopass;
	int scale;
	int winlen, hop, font_size;
	WindowFunction *win;
	RGBA col[RGBA_LAST];
	cairo_font_face_t *font, *bfont;
	char **help_cmd;
	Bool long_out, layers;
} Config;

/* main.c */
extern int die(const char *, ...);
/* config.c */
extern const char *configure(int, const char **);


extern int deconfigure();
/* fft.c */
extern FFT *create_fft(Wave *);
extern int free_fft(FFT **);
/* spectro.c */
extern int create_spectro(FFT *, const char *);
extern int free_spectro();
/* wave.c */
extern Wave *create_wave(const char *);
extern int free_wave(Wave **);
/* xlib.c */
extern int create_xlib();
extern int free_xlib();
extern cairo_t *xlib_context();
extern int xlib_event_loop();



/* global data */
Config conf;
Spectro *spect;

#endif /* __FEX_H__ */

#ifndef __FEX_H__
#define __FEX_H__


#include <stdlib.h>








#include <stdio.h>

#include <limits.h>






















typedef int fex_t;













enum {
	FexWaveOpen = INT_MIN,
	FexNullMember,
	FexNullAccess,
	FexMallocError,
	FexSuccess = 0,
} FexStatus;


extern fex_t fex_create(const char *);

































extern fex_t fex_destroy(fex_t);
extern unsigned char *fex_get_spectrogram(fex_t, int *, int *);
extern int *fex_get_path(fex_t);











extern int fex_threshold(fex_t, float);


extern double fex_measure(fex_t, double *, double*);
extern int fex_coordinates(fex_t, double, double, double *, double*);





#endif /* __FEX_H__ */

#ifndef __FEX_STRUCT_H__
#define __FEX_STRUCT_H__

#define fftAmp(fex,t,f)		(fex)->fft.amp[(fex)->fft.nfreq * t + f]

typedef struct FEX {
	struct {
		const char *name;
		int samples, rate;
		double *data;
	} wave;
	struct {
		double *time, *freq, *amp;
		int ntime, nfreq;
		int *path;
	} fft;
	struct {
		int winlen, hop;
		double lopass, hipass, floor, threshold;
		// colors
	} conf;
} FEX;

#endif /* __FEX_STRUCT_H__ */

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/

#include "fex.h"

#define FFTW_FLAGS	FFTW_FORWARD, FFTW_ESTIMATE
FFT *create_fft(Wave *wav) {
	/* allocate memory */
	FFT *fft = (FFT *) calloc(1,sizeof(FFT));
	fft->nfreq = conf.winlen/2 + 1;
	fft->ntime = wav->samples/conf.hop;
	fft->amp = (double **) calloc(fft->ntime, sizeof(double *));
	fft->time = (double *) calloc(fft->ntime, sizeof(double));
	fft->freq = (double *) calloc(fft->nfreq, sizeof(double));
	fft->mask = (char **) calloc(fft->ntime, sizeof(char *));
	/* calculate step sizes and fill time/freq arrays */
	double nyquist = (double) wav->rate / 2000.0;
	double df = nyquist / fft->nfreq;
	double dt = (double)wav->samples / (double)(wav->rate * fft->ntime);
	double f, t;
	int i, j;
	for (i = 0, f = 0.0; i < fft->nfreq; i++, f += df) fft->freq[i] = f;
	for (i = 0, t = 0.0; i < fft->ntime; i++, t += dt) fft->time[i] = t;
	/* prepare fftw */
	fftw_complex *in, * out;
	fftw_plan p;
	in = (fftw_complex *)fftw_malloc(conf.winlen * sizeof(fftw_complex));
	out = (fftw_complex *)fftw_malloc(conf.winlen * sizeof(fftw_complex));
	p = fftw_plan_dft_1d(conf.winlen, in, out, FFTW_FLAGS);
	/* create windowing function */
	double window[conf.winlen];
	double *a = conf.win->a;
	double wl = conf.winlen;
	for (i = 0; i < conf.winlen; i++)
		window[i] = a[0] - a[1] * cos(2 * M_PI * (i / (wl - 1.0))) +
				a[2] * cos(2 * M_PI * (i / (wl - 1.0))) -
				a[3] * cos(2 * M_PI * (i / (wl - 1.0)));
	/* loop over signal */
	int pos;
	for (pos = 0, j = 0; pos < wav->samples; pos += conf.hop, j++) {
		fft->amp[j] = (double *) malloc(fft->nfreq * sizeof(double));
		fft->mask[j] = (char *) calloc(fft->nfreq, sizeof(char));
		/* copy windowed chunk to dat */
		for (i = 0; i < conf.winlen; i++) {
			if (pos + i < wav->samples) {
				in[i][0] = wav->d[pos + i] * window[i];
				in[i][1] = 0.0;
			}
			else {
				in[i][0] = 0.0;
				in[i][1] = 0.0;
				goto doublebreak;
			}
		}
		/* calculate fft & fill amp matrix */
		fftw_execute(p);
		for (i = 0; i < fft->nfreq; i++)
			fft->amp[j][i] = sqrt(out[i][0] * out[i][0] +
					out[i][1] * out[i][1]);
	}
	doublebreak:
	fftw_destroy_plan(p);
	fftw_free(out);
	fftw_free(in);
	/* fill and zero unused bins */
	for ( ; j < fft->ntime; j++) {
		fft->amp[j] = (double *) calloc(fft->nfreq, sizeof(double));
		fft->mask[j] = (char *) calloc(fft->nfreq, sizeof(char));
	}
	/* band pass filter */
	for (i = 0; i < fft->ntime; i++) {
		for (j = 0; j < fft->nfreq && fft->freq[j] < conf.hipass; j++)
			fft->amp[i][j] = 0;
		for (j = fft->nfreq - 1; fft->freq[j] > conf.lopass; j--)
			fft->amp[i][j] = 0;
	}
	/* normalize, log transform, and scale to dB */
	fft->max = fft->min = 0.0;
	for (i = 0; i < fft->ntime; i++) for (j = 0; j < fft->nfreq; j++)
		if (fft->amp[i][j] > fft->max) fft->max = fft->amp[i][j];
	for (i = 0; i < fft->ntime; i++) for (j = 0; j < fft->nfreq; j++) {
		fft->amp[i][j] = 10.0 * log10(fft->amp[i][j] / fft->max);
		if (fft->amp[i][j] < fft->min && fft->amp[i][j] > -900)
			fft->min = fft->amp[i][j];
	}
	fft->max = 0.0;
	return fft;
}

int free_fft(FFT **fftp) {
	FFT *fft = *fftp;
	int i;
	for (i = 0; i < fft->ntime; i++) {
		free(fft->amp[i]);
		free(fft->mask[i]);
	}
	//free(fft->amp);
	//free(fft->time);
	free(fft->freq);
	free(fft);
	return 0;
}

/**********************************************************************\
* FFT.C
* Part of FEX, see FEX.C for complete license information
* Author: Jesse McClure, copyright 2013-2015
* License; GPL3
\**********************************************************************/

#include <math.h>
#include <fftw3.h>
#include "fex.h"
#include "fex_struct.h"

// TODO configurable window_function
static double window_function[4] = { 0.5, 0.5, 0, 0 };


#define MatrixAmp(mat,nf,t,f)		(mat)[nf * t + f]
fex_t create_fft(FEX *fex) {
	if (!fex) return FexNullAccess;
	/* allocate space */
	fex->fft.nfreq = fex->conf.winlen / 2 + 0.5;
	//fex->fft.ntime = (fex->wave.samples - fex->conf.winlen) / fex->conf.hop;
	fex->fft.ntime = fex->wave.samples / fex->conf.hop;
	fex->fft.freq = malloc(fex->fft.nfreq * sizeof(double));
	fex->fft.time = malloc(fex->fft.ntime * sizeof(double));
	fex->fft.amp = malloc(fex->fft.nfreq * fex->fft.ntime * sizeof(double));
	/* fill time and freq arrays */
	double nyquist = (double) fex->wave.rate / 2000.0;
	double dt = fex->wave.samples / (double) (fex->wave.rate * fex->fft.ntime);
	double df = nyquist / fex->fft.nfreq;
	int i;
	fex->fft.time[0] = fex->fft.freq[0] = 0.0;
	for (i = 1; i < fex->fft.ntime; ++i)
		fex->fft.time[i] = fex->fft.time[i-1] + dt;
	for (i = 1; i < fex->fft.nfreq; ++i)
		fex->fft.freq[i] = fex->fft.freq[i-1] + df;
	/* preare fftw */
	fftw_complex *in, *out;
	fftw_plan plan;
	in = (fftw_complex *) fftw_malloc(fex->conf.winlen * sizeof(fftw_complex));
	out = (fftw_complex *) fftw_malloc(fex->conf.winlen * sizeof(fftw_complex));
	plan = fftw_plan_dft_1d(fex->conf.winlen, in, out, FFTW_FORWARD, FFTW_ESTIMATE);
	/* windowing function */
	double *window = malloc(fex->conf.winlen * sizeof(double));
	int t, f, pos;
	for (t = 0; t < fex->conf.winlen; ++t)
		window[t] = window_function[0] -		// TODO - FIXME?
				window_function[1] * cos(2 * M_PI * t / (fex->conf.winlen - 1.0)) +
				window_function[2] * cos(2 * M_PI * t / (fex->conf.winlen - 1.0)) -
				window_function[3] * cos(2 * M_PI * t / (fex->conf.winlen - 1.0));
	/* loop over signal */
	for (pos = 0, t = 0; pos < fex->wave.samples; pos += fex->conf.hop, ++t) {
		/* copy windowed chunk to in */
		for (i = 0; i < fex->conf.winlen; ++i) {
			if (pos + i < fex->wave.samples)
				in[i][0] = fex->wave.data[pos + i] * window[i];
			else
				in[i][0] = 0.0;
			in[i][1] = 0.0;
		}
		/* calculate fft and fill amp */
		fftw_execute(plan);
		for (f = 0; f < fex->fft.nfreq; ++f)
			fftAmp(fex,t,f) = sqrt(out[f][0] * out[f][0] + out[f][1] * out[f][1]);
	}
	/* zero unused bins */
	for (; t < fex->fft.ntime; ++t) for (f = 0; f < fex->fft.nfreq; ++f)
		fftAmp(fex,t,f) = 0;
	/* drestroy and free data */
	fftw_destroy_plan(plan);
	fftw_free(out);
	fftw_free(in);
	free(window);
	/* psuedo bandpass filter */
	int f_zero, f_count = 0;
	for (f = 0; fex->fft.freq[f] < fex->conf.lopass; ++f);
	f_zero = f;
	for (; fex->fft.freq[f] <= fex->conf.hipass; ++f) f_count++;
	for (f = 0; f < f_count; ++f) fex->fft.freq[f] = fex->fft.freq[f+f_zero];
	fex->fft.freq = realloc(fex->fft.freq, f_count * sizeof(double));

	double *new_amp = malloc(fex->fft.ntime * f_count * sizeof(double));
	for (t = 0; t < fex->fft.ntime; ++t) for (f = 0; f < f_count; ++f)
		new_amp[f_count * t + f] = fex->fft.amp[fex->fft.nfreq * t + f + f_zero];
	fex->fft.nfreq = f_count;
	free(fex->fft.amp);
	fex->fft.amp = new_amp;

	/* normalize, log transform and scale to dB */
	double max = 0.0;
	for (t = 0; t < fex->fft.ntime; ++t) for (f = 0; f < fex->fft.nfreq; ++f)
		if (fftAmp(fex,t,f) > max) max = fftAmp(fex,t,f);
	for (t = 0; t < fex->fft.ntime; ++t) for (f = 0; f < fex->fft.nfreq; ++f)
		fftAmp(fex,t,f) = 10.0 * log10(fftAmp(fex,t,f) / max);
}


fex_t destroy_fft(FEX *fex) {
	if (!fex) return FexNullAccess;
	fex_t ret = FexSuccess;
	if (!fex->fft.amp) ret = FexNullMember;
	free(fex->fft.amp);
	fex->fft.amp = NULL;
	if (!fex->fft.time) ret = FexNullMember;
	free(fex->fft.time);
	fex->fft.time = NULL;
	if (!fex->fft.freq) ret = FexNullMember;
	free(fex->fft.freq);
	fex->fft.freq = NULL;
	return ret;
}

#ifdef _WIN32_
#include <windows.h>
#endif
#include <GL/freeglut.h>
#include "fex.h"

// http://freeglut.sourceforge.net/docs/api.php#Freeglut.h_Header

typedef unsigned short int bool;
enum { false = 0, true };

static bool running = true, overlay = true, hud = true;
static fex_t fex;
static int topWin, win;
static double time, freq, calc;
static GLint SpectroTexture;
static int w, h;
static unsigned char *data = NULL;

int redraw_spectrogram() {
	data = fex_get_spectrogram(fex, &w, &h);
	calc = fex_measure(fex,NULL,NULL);
	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
	glGenTextures(1, &SpectroTexture);
	glBindTexture(GL_TEXTURE_2D, SpectroTexture);
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
	glBindTexture(GL_TEXTURE_2D, SpectroTexture);
	return 0;
}







void drawTop() {
	glClear(GL_COLOR_BUFFER_BIT);
	glColor4f(1.0,1.0,1.0, 1.0);
	//glColor4f(0.5,0.525,0.575, 1.0);
	glBegin(GL_QUADS);
		glVertex2f(-1.0, -1.0);
		glVertex2f(-1.0, 1.0);
		glVertex2f(1.0, 1.0);
		glVertex2f(1.0, -1.0);
	glEnd();
	glutSwapBuffers();
}


/* Handler for window-repaint event. Call back when the window first appears and
   whenever the window needs to be re-painted. */
void display() {
	glClear(GL_COLOR_BUFFER_BIT);
	glEnable(GL_MULTISAMPLE_ARB);
	/* Use spectrogram background: */
	glColor4f(1.0,1.0,1.0, 1.0);
	glEnable(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, SpectroTexture);
   glBegin(GL_QUADS);
		glTexCoord2f(0.0, 0.0);
      glVertex2f(-1.0f, -1.0f);
      glTexCoord2f(1.0, 0.0);
      glVertex2f(1.0f, -1.0f);
      glTexCoord2f(1.0, 1.0);
      glVertex2f( 1.0f,  1.0f);
      glTexCoord2f(0.0, 1.0);
      glVertex2f(-1.0f,  1.0f);
   glEnd();
	glDisable(GL_TEXTURE_2D);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glEnable(GL_BLEND);
if (overlay) {
	int *path = fex_get_path(fex);
	glColor4f(0.8,0.2,0.0, 0.4);
	glLineWidth(4.0);
	glEnable(GL_LINE_SMOOTH);
	int x;
	double dx, dy;

	glBegin(GL_LINE_STRIP);
	for (x = 0; x < w; ++x) {
		if (path[x] < 0) continue;
		dx = 2.0 * x / w - 1.0;
		dy = 2.0 * path[x] / h - 1.0;
		glVertex2f(dx,dy);
	}
	glEnd();

	glColor4f(0.0,0.0,0.4, 0.5);
	glBegin(GL_QUADS);
	for (x = 0; x < w; ++x) {
		if (path[x] < 0) continue;
		dx = 2.0 * x / w - 1.0;
		dy = 2.0 * path[x] / h - 1.0;
		glVertex2f(dx-0.004,dy-0.008);
		glVertex2f(dx-0.004,dy+0.008);
		glVertex2f(dx+0.004,dy+0.008);
		glVertex2f(dx+0.004,dy-0.008);
	}
	glEnd();
}

if (hud) {
float x_units = 2.0 / (float) glutGet(GLUT_WINDOW_WIDTH);
float y_units = 2.0 / (float) glutGet(GLUT_WINDOW_HEIGHT);
glColor4f(0.0,0.0,0.5,0.4);
	glBegin(GL_QUADS);
      glVertex2f(-1.0f, 1.0f - 26 * y_units);
      glVertex2f(1.0f, 1.0f - 26 * y_units);
      glVertex2f( 1.0f,  1.0f);
      glVertex2f(-1.0f,  1.0f);
	glEnd();

glColor4f(1.0,0.9,0.6,0.8);

glRasterPos2f(-1.0 + 8 * x_units, 1.0 - 20 * y_units);
char str[32];
snprintf(str,32,"%0.3lfs %0.1lfkHz    FE: %0.2lf",time,freq,calc);
glutBitmapString(GLUT_BITMAP_HELVETICA_18,str);
}
	glDisable(GL_BLEND);
	glutSwapBuffers();
}


int show_menu(int x, int y) {
	//glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	//glEnable(GL_BLEND);
	glutSwapBuffers();
}





void specialKeys(int key, int x, int y) {
	static bool fullscreen = false;
	static int wx, wy, ww, wh;
	if (key == GLUT_KEY_F1)
		running = false;
	else if (key == GLUT_KEY_F2) {
		overlay = !overlay;
		redraw_spectrogram();
		glutPostRedisplay();
	}
	else if (key == GLUT_KEY_F11)
		glutFullScreenToggle();
	else if (key == GLUT_KEY_UP) {
		fex_threshold(fex, 0.5);
		redraw_spectrogram();
		glutPostRedisplay();
	}
	else if (key == GLUT_KEY_DOWN) {
		fex_threshold(fex, -0.5);
		redraw_spectrogram();
		glutPostRedisplay();
	}
}


static int mN = -1, mX, mY, mW, mH;
void mouse_button(int button, int state, int x, int y) {
	static bool old_hud;
	if (state == GLUT_DOWN) {
		old_hud = hud;
		hud = false;
		mN = button; mX = x; mY = y;
		mW = glutGet(GLUT_WINDOW_WIDTH);
		mH = glutGet(GLUT_WINDOW_HEIGHT);
		if (button == GLUT_MIDDLE_BUTTON) {
			glutSetWindow(topWin);
			int ww = glutGet(GLUT_WINDOW_WIDTH);
			int wh = glutGet(GLUT_WINDOW_HEIGHT);
			glutSetWindow(win);
			glutPositionWindow(0, 0);
			glutReshapeWindow(ww, wh);
			mN = -1;
		}
	}
	if (state == GLUT_UP) {
		hud = old_hud;
		glutPostRedisplay();
		mN = -1;
	}
}

void move_resize(int x, int y) {
	int wx = glutGet(GLUT_WINDOW_X);
	int wy = glutGet(GLUT_WINDOW_Y);
	if (mN == -1) return;
	else if (mN == GLUT_LEFT_BUTTON)
		glutPositionWindow(wx + x - mX, wy + y - mY);
	else if (mN == GLUT_RIGHT_BUTTON)
		glutReshapeWindow(mW + x - mX, mH + y - mY);
}

void motion(int x, int y) {
	double ww = glutGet(GLUT_WINDOW_WIDTH);
	double wh = glutGet(GLUT_WINDOW_HEIGHT);
	fex_coordinates(fex, x / ww, 1.0 - y / wh, &time, &freq);
	glutPostRedisplay();
}

/* Main function: GLUT runs as a console application starting at main()  */
int main(int argc, char **argv) {
	fex = fex_create(argv[1]);
	if (fex < 0) return fex;

   glutInit(&argc, argv);                 // Initialize GLUT
	glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_MULTISAMPLE);
   topWin = glutCreateWindow("OpenGL Setup Test"); // Create a window with the given title
   glutInitWindowSize(640, 480);   // Set the window's initial width & height
   glutInitWindowPosition(50, 50); // Position the window's initial top-left corner
   glutDisplayFunc(drawTop); // Register display callback handler for window re-paint

	win = glutCreateSubWindow(topWin,0,0,640,480);
	glClearColor(1.0,1.0,1.0,1.0);

   glutDisplayFunc(display); // Register display callback handler for window re-paint
	glutMouseFunc(mouse_button);
	glutMotionFunc(move_resize);
	glutPassiveMotionFunc(motion);
	glutSpecialFunc(specialKeys);
	redraw_spectrogram();
	while (running)
		glutMainLoopEvent();

	double pex, tex;
	calc = fex_measure(fex,&pex,&tex);
	fex_destroy(fex);
	printf("%lf / %lf = %lf\n",pex,tex,calc);
   return 0;
}

/* XPM */
char *icon[] = {
/* columns rows colors chars-per-pixel */
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"   c #010001",
".  c #000E0F",
"X  c #060904",
"o  c #01071D",
"O  c #1B0018",
"+  c #001412",
"@  c #310400",
"#  c #3B0016",
"$  c #15002D",
"%  c #120023",
"&  c #05063B",
"*  c #160039",
"=  c #001236",
"-  c #000C25",
";  c #29003A",
":  c #290039",
">  c #3C003D",
",  c #32003B",
"<  c #2D0028",
"1  c #002827",
"2  c #003E2E",
"3  c #002A37",
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"5  c #5A0000",
"6  c #46001E",
"7  c #5E001C",
"8  c #450008",
"9  c #6D0000",
"0  c #7B0000",
"q  c #70001B",
"w  c #660016",
"e  c #42002D",
"r  c #470022",
"t  c #55002C",
"y  c #5A0028",
"u  c #470037",
"i  c #4B003B",
"p  c #4B0034",
"a  c #560039",
"s  c #510036",
"d  c #67002A",
"f  c #73002D",
"g  c #750025",
"h  c #6A0031",
"j  c #630031",
"k  c #720033",
"l  c #004134",
"z  c #004B3A",
"x  c #004637",
"c  c #010042",
"v  c #110043",
"b  c #13004A",
"n  c #1C004A",
"m  c #00124A",
"M  c #0C0051",
"N  c #000B5E",
"B  c #050458",
"V  c #170055",
"C  c #001A5E",
"Z  c #00145A",
"A  c #250046",
"S  c #24004D",
"D  c #2B0048",
"F  c #3B0044",
"G  c #350044",
"H  c #00334C",
"J  c #002954",
"K  c #003E54",
"L  c #00325A",
"P  c #002A48",
"I  c #001364",
"U  c #001C6B",
"Y  c #001A65",
"T  c #001E73",
"R  c #001E7A",
"E  c #000C64",
"W  c #00286A",
"Q  c #003369",
"!  c #003D6C",
"~  c #003B63",
"^  c #002476",
"/  c #00267D",
"(  c #002D7E",
")  c #002C75",
"_  c #003376",
"`  c #00317C",
"'  c #003A79",
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"+. c #00694C",
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"$. c #006C55",
"%. c #006B5B",
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"*. c #007257",
"=. c #00745C",
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">. c #004569",
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"4. c #004B74",
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"q. c #00646B",
"w. c #006C6D",
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"t. c #007C63",
"y. c #00746C",
"u. c #007C6A",
"i. c #006576",
"p. c #006C76",
"a. c #007372",
"s. c #007C73",
"d. c #00747C",
"f. c #007D7B",
"g. c #850000",
"h. c #940000",
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"k. c #8A0012",
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"c. c #A50800",
"v. c #B60002",
"b. c #BA0000",
"n. c #B9000E",
"m. c #BC0E00",
"M. c #A30011",
"N. c #A80019",
"B. c #B50018",
"V. c #820024",
"C. c #8C0029",
"Z. c #8E0024",
"A. c #930024",
"S. c #9F0029",
"D. c #970027",
"F. c #A40023",
"G. c #C40000",
"H. c #CA000E",
"J. c #D00000",
"K. c #DB0000",
"L. c #D6000D",
"P. c #C50012",
"I. c #CA0012",
"U. c #E30000",
"Y. c #E50009",
"T. c #EC0000",
"R. c #00825E",
"E. c #008265",
"W. c #008C65",
"Q. c #00856A",
"!. c #008A6D",
"~. c #00926C",
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"+X c #008187",
"@X c None",
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};

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/

#include "fex.h"

#define set_color(x,n)	{	\
	cairo_set_source_rgba(x, conf.col[n].r, conf.col[n].g,	\
			conf.col[n].b, conf.col[n].a);							\
	cairo_set_line_width(x, conf.col[n].w);						\
}

int create_spectro(FFT *fft, const char *fname) {
	spect = (Spectro *) calloc(1, sizeof(Spectro));
	/* names */
	spect->fname = fname;
	char *c = strrchr(spect->fname,'/');
	if (c && (++c)) spect->name = strdup(c);
	else spect->name = strdup(fname);
	if ( (c=strrchr(spect->name,'.')) ) *c = '\0';
	/* fft */
	spect->fft = fft;
	spect->fft_w = fft->ntime;
	spect->fft_h = fft->nfreq;
	/* set bounds */
	int i;
	for (i = 0; i < spect->fft->nfreq &&
			spect->fft->freq[i] < conf.hipass; i++);
	spect->fft_lo = spect->fft_y = i;
	for (i++; i < spect->fft->nfreq &&
			spect->fft->freq[i] < conf.lopass; i++);
	spect->fft_hi = i;
	spect->fft_h = i - spect->fft_y;
	/* cairo_surfaces */
	spectro_spec();
	spectro_thresh();
	spectro_points();
	/* xlib */
	create_xlib();
	return 0;
}

int free_spectro() {
	cairo_surface_destroy(spect->m_spec);
	cairo_surface_destroy(spect->m_thresh);
	cairo_surface_destroy(spect->s_points);
	free_xlib();
	free(spect->name);
	free(spect);
	return 0;
}

int img_draw() {
	cairo_surface_t *img;
	img = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, spect->fft_w*conf.scale, spect->fft_h*conf.scale * 4);
	cairo_t *ctx;
	ctx = cairo_create(img);
	cairo_scale(ctx,conf.scale,-4.0 * conf.scale);
	cairo_translate(ctx, 0, -1.0 * spect->fft_h);
	cairo_set_source_rgba(ctx,1.0,1.0,1.0,1.0);
	cairo_rectangle(ctx,0,0,spect->fft_w,spect->fft_h);
	cairo_fill(ctx);
	set_color(ctx,RGBA_SPECT);
	cairo_mask_surface(ctx,spect->m_spec,0,0);
	cairo_surface_write_to_png(img,"/tmp/img1.png");
	cairo_destroy(ctx);
	cairo_surface_destroy(img);
	img = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, spect->fft_w*conf.scale, spect->fft_h*conf.scale * 4);
	ctx = cairo_create(img);
	cairo_scale(ctx,conf.scale,-4.0 * conf.scale);
	cairo_translate(ctx, 0, -1.0 * spect->fft_h);
	cairo_set_source_rgba(ctx, conf.col[RGBA_THRESH].r, conf.col[RGBA_THRESH].g,
		conf.col[RGBA_THRESH].b, 0.8);
	cairo_mask_surface(ctx,spect->m_thresh,0,0);
	cairo_surface_write_to_png(img,"/tmp/img2.png");
	cairo_destroy(ctx);
	cairo_surface_destroy(img);
	img = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, spect->fft_w*conf.scale, spect->fft_h*conf.scale * 4);
	ctx = cairo_create(img);
	cairo_scale(ctx, 1.0, -4.0);
	cairo_translate(ctx, 0, -1.0 * spect->fft_h * conf.scale);
	cairo_set_source_surface(ctx,spect->s_points, 0, 0);
	cairo_paint_with_alpha(ctx, 0.8);
	cairo_surface_write_to_png(img,"/tmp/img3.png");
	cairo_destroy(ctx);
	cairo_surface_destroy(img);
	return 0;
}

int spectro_draw() {
	cairo_t *c = xlib_context();
	cairo_set_source_rgba(c,1.0,1.0,1.0,1.0);
	cairo_rectangle(c,0,0,spect->fft_w,spect->fft_h);
	cairo_fill(c);
	set_color(c,RGBA_SPECT);
	cairo_mask_surface(c,spect->m_spec,0,0);
	if (conf.layers) {
		set_color(c,RGBA_THRESH);
		cairo_mask_surface(c,spect->m_thresh,0,0);
		cairo_scale(c,1.0/conf.scale,1.0/conf.scale);
		cairo_set_source_surface(c,spect->s_points,0,0);
		cairo_paint(c);
	}
	cairo_destroy(c);
	return 0;
}

int spectro_points() {
	if (spect->s_points) cairo_surface_destroy(spect->s_points);
	spect->s_points = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
			spect->fft_w * conf.scale, spect->fft_h * conf.scale);
	cairo_t *p = cairo_create(spect->s_points);
	cairo_t *l = cairo_create(spect->s_points);
	set_color(p,RGBA_POINTS);
	set_color(l,RGBA_LINES);
	int i, j, f;
	double lt = spect->fft->time[0], lf = spect->fft->freq[0];
	spect->pex = 0.0;
	spect->tex = 0.0;
	/* loop through time bins */
	for (i = spect->fft_x; i < spect->fft_w + spect->fft_x; i++) {
		/* find maximum (non masked) frequency in time bin */
		for (f = 0, j = spect->fft_y; j < spect->fft_h+spect->fft_y; j++) {
				if (spect->fft->mask[i][j]) continue;
				if (spect->fft->amp[i][j] > spect->fft->amp[i][f] || !f)
					f = j;
		}
		/* add points and do calculations if f is above threshold */
		if (f > 0 && spect->fft->amp[i][f] > conf.thresh) {
			if (lt != spect->fft->time[0]) {
				spect->pex += sqrt(
					(spect->fft->freq[f] - lf) * (spect->fft->freq[f] - lf) +
					(spect->fft->time[i] - lt) * (spect->fft->time[i] - lt) );
				spect->tex += spect->fft->time[i] - lt;
			}
			lt = spect->fft->time[i];
			lf = spect->fft->freq[f];
			cairo_line_to(l,
					(i - spect->fft_x) * conf.scale + conf.scale / 2,
					(f - spect->fft_y) * conf.scale + conf.scale / 2);
			cairo_new_sub_path(p);
			cairo_arc(p,
					(i - spect->fft_x) * conf.scale + conf.scale / 2,
					(f - spect->fft_y) * conf.scale + conf.scale / 2,
					conf.col[RGBA_POINTS].w,0,2*M_PI);
		}
		spect->fex = spect->pex / spect->tex;
	}
	cairo_fill(p);
	cairo_stroke(l);
	cairo_destroy(p);
	cairo_destroy(l);
	return 0;
}

int spectro_spec() {
	if (spect->m_spec) cairo_surface_destroy(spect->m_spec);
	if (spect->a_spec) free(spect->a_spec);
	int i, j, stride;
	stride = cairo_format_stride_for_width(CAIRO_FORMAT_A8, spect->fft_w);
	spect->a_spec = (unsigned char *) calloc(stride,spect->fft_h);
	unsigned char *a = NULL;
	for (j = spect->fft_y; j < spect->fft_h + spect->fft_y; j++) {
		a = spect->a_spec + (j - spect->fft_y) * stride;
		for (i = spect->fft_x; i < spect->fft_w + spect->fft_x; i++, a++) {
			*a = 255  - (unsigned char) 255 * (
					( (spect->fft->amp[i][j] - conf.spect_floor) >= 0) ?
						spect->fft->amp[i][j] / conf.spect_floor : 1);
		}
	}
	spect->m_spec = cairo_image_surface_create_for_data(spect->a_spec,
			CAIRO_FORMAT_A8, spect->fft_w, spect->fft_h, stride);
	return 0;
}

int spectro_thresh() {
	if (spect->m_thresh) cairo_surface_destroy(spect->m_thresh);
	if (spect->a_thresh) free(spect->a_thresh);
	int i, j, stride;
	stride = cairo_format_stride_for_width(CAIRO_FORMAT_A8, spect->fft_w);
	spect->a_thresh = (unsigned char *) calloc(stride, spect->fft_h);
	unsigned char *a = NULL;
	for (j = spect->fft_y; j < spect->fft_h + spect->fft_y; j++) {
		a = spect->a_thresh + (j - spect->fft_y) * stride;
		for (i = spect->fft_x; i < spect->fft_w + spect->fft_x; i++, a++) {
			if (spect->fft->mask[i][j]) *a = 0;
			else if (spect->fft->amp[i][j] > conf.thresh) *a = 255;
			else *a = 0;
		}
	}
	spect->m_thresh = cairo_image_surface_create_for_data(spect->a_thresh,
			CAIRO_FORMAT_A8, spect->fft_w, spect->fft_h, stride);
	return 0;
}

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/

#include "fex.h"


Wave *create_wave(const char *fname) {
	Wave *w = (Wave *) calloc(1,sizeof(Wave));
	SF_INFO *winfo;
	SNDFILE *wfile = NULL;
	winfo = (SF_INFO *) calloc(1, sizeof(SF_INFO));
	wfile = sf_open(fname, SFM_READ, winfo);
	w->samples = winfo->frames;
	w->rate = winfo->samplerate;
	w->d = (double *) calloc(w->samples+1, sizeof(double));
	sf_count_t n;
	if (winfo->channels == 1) {
		n = sf_readf_double(wfile, w->d, w->samples);
	}
	else { /* average over channels */
		double *multi = calloc((w->samples+1)*winfo->channels, sizeof(double));
		n = sf_readf_double(wfile, multi, w->samples * winfo->channels);
		int i, nframe;
		double mix;
		for (nframe = 0; nframe < w->samples; nframe++) {
			mix = 0.0;
			for (i = 0; i < winfo->channels; i++)
				mix += multi[nframe * winfo->channels + i];
			w->d[nframe] = mix / winfo->channels;
		}
		free(multi);
	}
	if (n != w->samples)
		fprintf(stderr,"Error reading \"%s\"\n\t"
				"\t%d samples read of\n\t%d reported size\n",
				fname, (int) n, w->samples);
	sf_close(wfile);



	return w;
}

int free_wave(Wave **wp) {
	Wave *w = *wp;
	free(w->d);
	free(w);

	return 0;
}

/**********************************************************************\
* WAVE.C
* Part of FEX, see FEX.C for complete license information
* Author: Jesse McClure, copyright 2013-2015
* License; GPL3
\**********************************************************************/

#include <sndfile.h>
#include "fex.h"
#include "fex_struct.h"

fex_t read_wave(FEX *fex) {
	if (!fex) return FexNullAccess;
	SF_INFO info;
	SNDFILE *file = sf_open(fex->wave.name, SFM_READ, &info);
	if (!file) return FexWaveOpen;
	/* read in if single channel */
	fex->wave.samples = info.frames;
	fex->wave.rate = info.samplerate;
	fex->wave.data = malloc(fex->wave.samples * sizeof(double));
	sf_count_t n;
	if (info.channels == 1) {
		n = sf_readf_double(file, fex->wave.data, fex->wave.samples);
	}
	/* otherwise downmix to single channel */
	else {
		double *multi = malloc(info.frames * info.channels * sizeof(double));
		n = sf_readf_double(file, multi, info.frames * info.channels);
		/* average across all channels */
		int i, nframe;
		double mix;
		for (nframe = 0; nframe < info.frames; ++nframe) {
			mix = 0.0;
			for (i = 0; i < info.channels; ++i)
				mix += multi[nframe * info.channels + i];
			fex->wave.data[nframe] = mix / info.channels;












		}
		free(multi);
	}
	/* close file and check that we read the right number of samples */



	sf_close(file);
	if (n != fex->wave.samples)
		fprintf(stderr, "[Fex:Wave] Warning reading \"%s\"\n\tRead %d / %d samples\n",
				fex->wave.name, n, fex->wave.samples);
	return FexSuccess;
}

fex_t free_wave(FEX *fex) {
	if (!fex) return FexNullAccess;
	if (!fex->wave.data) return FexNullMember;
	free(fex->wave.data);
	fex->wave.data = NULL;
	return FexSuccess;
}

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/

#include "fex.h"

#define MODE_NULL		0x00
#define MODE_ERASE	0x01
#define MODE_CROP		0x02

#define EVENT_MASK	ExposureMask | ButtonPressMask | KeyPressMask | \
							StructureNotifyMask

/* spectro.c */
extern int img_draw();
extern int spectro_draw();
extern int spectro_points();
extern int spectro_spec();
extern int spectro_thresh();

static void buttonpress(XEvent *);
static void clientmessage(XEvent *);
static void configurenotify(XEvent *);
static void expose(XEvent *);
static void keypress(XEvent *);
static void motionnotify(XEvent *);

static int crop(int, int);
static int erase(int, int);
static int eraser_cursor(int, int);
static int move(double, double);
static int play(float);
static int pt_line(double, double);
static int screenshot();
static int sp_floor(double);
static int threshold(double);
static int zoom(double);

static Display *dpy;
static int scr;
static unsigned int ww, wh, mx, my;
static GC gc;
static Window root, win;
static Pixmap buf; //, ibuf, sbuf;
static Atom WM_DELETE_WINDOW;
//static cairo_t *ictx, *sctx;
static Bool running = True;
static double xsc = 1.0, ysc = 1.0, xoff = 0.0, yoff = 0.0;
static int mode = 0, ew = 31, eh = 64;
static char e_col[2][8];
static void (*handler[LASTEvent])(XEvent *) = {
	[ButtonPress]			= buttonpress,
	[ClientMessage]		= clientmessage,
	[ConfigureNotify]		= configurenotify,
	[Expose]					= expose,
	[KeyPress]				= keypress,
	[MotionNotify]			= motionnotify,
};

#include "xlib_toolwin.c"
#include "xlib_actions.c"
#include "xlib_events.c"

int create_xlib() {
	if (!setlocale(LC_CTYPE,"")) die("unable to set locale");
	if (!XSupportsLocale()) die("unsupported locale");
	if (!XSetLocaleModifiers("")) die("unable to set locale modifiers");
	if ( !(dpy=XOpenDisplay(0x0)) ) die("unable to open display");
	scr = DefaultScreen(dpy);
	root = DefaultRootWindow(dpy);
	gc = DefaultGC(dpy,scr);
	ww = DisplayWidth(dpy,scr);
	wh = DisplayHeight(dpy,scr);
	/* create windows */
	buf = XCreatePixmap(dpy, root, ww, wh, DefaultDepth(dpy,scr));
	win = XCreateSimpleWindow(dpy,root,0,0,(ww*=0.85),(wh*=0.85),0,0, 0);
	XSelectInput(dpy, win, EVENT_MASK | SubstructureRedirectMask |
			PointerMotionMask);
	XStoreName(dpy, win, "FEX: Frequency Excursion Calculator");
	XClassHint *hint = XAllocClassHint();
	hint->res_name = "FEX";
	hint->res_class = "FEX";
	XSetClassHint(dpy, win, hint);
	WM_DELETE_WINDOW = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
	XSetWMProtocols(dpy, win, &WM_DELETE_WINDOW, 1);
	#include "icon.xpm"
	Pixmap image, shape;
	XWMHints *hints;
	XpmCreatePixmapFromData(dpy, win, icon, &image, &shape, NULL);
	hints = XAllocWMHints();
	hints->flags = IconPixmapHint | IconMaskHint;
	hints->icon_pixmap = image;
	hints->icon_mask = shape;
	XSetWMHints(dpy, win, hints);
	XFree(hints);
	/* set up eraser / crop colors */
	sprintf(e_col[0],"#%02hhX%02hhX%02hhX",
		(unsigned char) conf.col[RGBA_ERASE1].r * 255,
		(unsigned char) conf.col[RGBA_ERASE1].g * 255,
		(unsigned char) conf.col[RGBA_ERASE1].b * 255);
	sprintf(e_col[1],"#%02hhX%02hhX%02hhX",
		(unsigned char) conf.col[RGBA_ERASE2].r * 255,
		(unsigned char) conf.col[RGBA_ERASE2].g * 255,
		(unsigned char) conf.col[RGBA_ERASE2].b * 255);
	char c_col[8];
	XColor c;
	sprintf(c_col,"#%02hhX%02hhX%02hhX",
		(unsigned char) conf.col[RGBA_CROP].r * 255,
		(unsigned char) conf.col[RGBA_CROP].g * 255,
		(unsigned char) conf.col[RGBA_CROP].b * 255);
	XAllocNamedColor(dpy,DefaultColormap(dpy,scr),c_col,&c,&c);
	XSetLineAttributes(dpy, gc, conf.col[RGBA_CROP].w, LineSolid,
			CapButt, JoinRound);
	XSetForeground(dpy, gc, c.pixel);
	toolwin_create();
	spectro_draw();
	XSetWindowBackgroundPixmap(dpy, win, buf);
	return 0;
}

int free_xlib() {
	XUndefineCursor(dpy, win);
	toolwin_destroy();
	XFlush(dpy);
	XCloseDisplay(dpy);
	return 0;
}

cairo_t *xlib_context() {
	cairo_surface_t *t = cairo_xlib_surface_create(dpy, buf,
			DefaultVisual(dpy,scr), ww, wh);
	cairo_t *c = cairo_create(t);
	cairo_surface_destroy(t);
	cairo_translate(c,0,wh * ysc);
	cairo_scale(c, (ww * xsc)/ (float) spect->fft_w,
			-1.0 * (wh * ysc) / (float) spect->fft_h);
	cairo_translate(c, xoff, yoff);
	return c;
}

int xlib_event_loop() {
	XMapWindow(dpy, win);
	XMapWindow(dpy, info->win);
	XEvent ev;
	while (running && !XNextEvent(dpy,&ev))
		if (ev.type < LASTEvent && handler[ev.type])
			handler[ev.type](&ev);
	return 0;
}

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/


int crop(int x, int y) {
	int x1 = x, y1 = y, x2, y2, t;
	XCopyArea(dpy, win, buf, gc, 0, 0, ww, wh, 0, 0);
	XEvent e;
	XGrabPointer(dpy, win, True, PointerMotionMask | ButtonPressMask,
			GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
	while (e.type != ButtonPress) {
		XMaskEvent(dpy, PointerMotionMask | ButtonPressMask |
				KeyPressMask, &e);
		if (e.type == KeyPress) break;
		x2 = e.xmotion.x;
		y2 = e.xmotion.y;
		if (x2 > ww) x2 = ww;
		if (y2 > wh) y2 = wh;
		mx = spect->fft_w * x2/(ww*xsc) - 1.0 * xoff + spect->fft_x;
		my = spect->fft_h * (1.0-y2/(wh*ysc)) - 1.0 * yoff + spect->fft_y;
		XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
		XDrawLine(dpy, win, gc, x2, 0, x2, wh);
		XDrawLine(dpy, win, gc, 0, y2, ww, y2);
		info_draw(info);
		if (e.type == ButtonPress) break;
		while(XCheckMaskEvent(dpy, PointerMotionMask, &e));
	}
	XUngrabPointer(dpy, CurrentTime);
	if (x2 < x1) { t = x1; x1 = x2; x2 = t; }
	if (y2 > y1) { t = y1; y1 = y2; y2 = t; }
	mode = MODE_NULL;
	info_draw(info);
	if (e.type == KeyPress) {
		spectro_draw();
		XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
		return 0;
	}
	int oldy = spect->fft_y;
	spect->fft_x = spect->fft_w * x1/(ww*xsc) - 1.0*xoff + spect->fft_x;
	spect->fft_y = spect->fft_h*(1.0-y1/(wh*ysc))-1.0*yoff+spect->fft_y;
	spect->fft_w = spect->fft_w * x2/(ww*xsc) - 1.0*xoff - spect->fft_x;
	spect->fft_h = spect->fft_h*(1.0-y2/(wh*ysc))-1.0*yoff +
			oldy - spect->fft_y;
	spectro_spec();
	spectro_thresh();
	spectro_points();
	spectro_draw();
	XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
	return 0;
}

int erase(int x, int y) {
	int x1, x2, y1, y2, i, j;
	double sew = spect->fft_w * ew / (ww * xsc);
	double seh = spect->fft_h * eh / (wh * ysc);
	if (x == -1 && y == -1) { /* UNDO LAST ERASE */
		for (i = 0; i < spect->fft->ntime; i++)
			for (j = 0; j < spect->fft->nfreq; j++)
				spect->fft->mask[i][j] = ( (spect->fft->mask[i][j] >> 7) ?
						(spect->fft->mask[i][j] >> 1) | 0x40 :
						(spect->fft->mask[i][j] >> 1) );
		spectro_points();
		spectro_draw();
		XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
		return 0;
	} /* ELSE START NEW ERASE */
	XEvent e;
	XGrabPointer(dpy, win, True, PointerMotionMask | ButtonReleaseMask,
			GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
	/* rotate bits for 7 undo levels */
	for (i = 0; i < spect->fft->ntime; i++)
		for (j = 0; j < spect->fft->nfreq; j++)
			spect->fft->mask[i][j] = ( (spect->fft->mask[i][j] >> 7) ?
					(spect->fft->mask[i][j] << 1) | 0x40 :
					(spect->fft->mask[i][j] << 1) );
	while (e.type != ButtonRelease) {
		XMaskEvent(dpy, PointerMotionMask | ButtonReleaseMask, &e);
		/* set erase bit mask */
		mx = spect->fft_w*e.xbutton.x/(ww*xsc) - 1.0*xoff + spect->fft_x;
		my = spect->fft_h*(1.0-e.xbutton.y/(wh*ysc)) -1.0*yoff+spect->fft_y;
		x1 = mx - sew / 2.0; y1 = my - seh / 2.0;
		x2 = mx + sew / 2.0; y2 = my + seh / 2.0;
		if (x1 < 0) x1 = 0;
		if (y1 < 0) y1 = 0;
		if (x2 >= spect->fft->ntime) x2 = spect->fft->ntime - 1;
		if (y2 >= spect->fft->nfreq) y2 = spect->fft->nfreq - 1;
		for (j = y1; j <= y2; j++)
			for (i = x1; i <= x2; i++)
				spect->fft->mask[i][j] |= 0x01;
		/* redraw */
		spectro_thresh();
		spectro_points();
		spectro_draw();
		XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
		info_draw(info);
		if (e.type == ButtonRelease) break;
		while(XCheckMaskEvent(dpy, PointerMotionMask, &e));
	}
	XUngrabPointer(dpy, CurrentTime);
	return 0;
}

int eraser_cursor(int w, int h) {
	XUndefineCursor(dpy, win);
	if ( !(mode & MODE_ERASE) ) return 0;
	if ( (ew+=w) < 3 ) ew = 3;
	if ( (eh+=h) < 3 ) eh = 3;
	if ( ew > ww/4 ) ew = ww / 4;
	if ( eh > wh/2 ) eh = wh / 2;
	int i, stride = ew/ 8 + 1;
	char data[stride * eh];
	char mask[stride * eh];
	XColor bg, fg;
	XAllocNamedColor(dpy,DefaultColormap(dpy,scr),e_col[0],&bg,&bg);
	XAllocNamedColor(dpy,DefaultColormap(dpy,scr),e_col[1],&fg,&fg);
	memset(mask, 0xAA, stride * eh);
	memset(data, 0xAA, stride * eh);
	for (i = 0; i < eh; i+= 2) memset(&mask[stride * i], 0x55, stride);
	Pixmap cd = XCreateBitmapFromData(dpy, win, data, ew, eh);
	Pixmap cm = XCreateBitmapFromData(dpy, win, mask, ew, eh);
	Cursor c = XCreatePixmapCursor(dpy, cd, cm, &fg, &bg, ew/2, eh/2);
	XDefineCursor(dpy, win, c);
	XFreePixmap(dpy, cd);
	XFreePixmap(dpy, cm);
	XFlush(dpy);
	return 0;
}

int move(double x, double y) {
	xoff += x / xsc * spect->fft_w; yoff += y / ysc * spect->fft_h;
	if ( yoff > spect->fft_h * (1.0 - 1.0/ysc) )
		yoff = spect->fft_h * (1.0 - 1.0/ysc);
	if ( yoff < 0) yoff = 0;
	if ( xoff < spect->fft_w * (1.0/xsc - 1.0) )
		xoff = spect->fft_w * (1.0/xsc - 1.0);
	if ( xoff > 0) xoff = 0;
	if (x || y) { /* don't redraw for offset checks */
		spectro_draw();
		XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
	}
	return 0;
}

int play(float speed) {
	/* calculate fft coordinates of current view window */
	int tw = spect->fft_w / xsc;
	int th = spect->fft_h / ysc;
	int tx = spect->fft_x - xoff;
	int ty = spect->fft_y - yoff + spect->fft_h - th;
	if (tx + tw >= spect->fft->ntime) tw = spect->fft->ntime - tx - 1;
	if (ty + th >= spect->fft->nfreq) th = spect->fft->nfreq - ty - 1;
	/* get time and frequency values of current view window */
	double _start = spect->fft->time[tx];
	double _end = spect->fft->time[tx+tw];
	double _low = spect->fft->freq[ty];
	double _hi = spect->fft->freq[ty+th];
	double _mid = (_hi+_low)/2.0;
	double _wid = (_hi-_low)/2.0;
	/* fork and play */
	if (!fork()==0) {
		close(ConnectionNumber(dpy));
		char start[12], end[12], mid[12], wid[12], sp[8];
		snprintf(sp,7,"%3f",speed);
		sprintf(start,"=%lf",_start); sprintf(end,"=%lf",_end);
		sprintf(mid,"%lfk",_mid); sprintf(wid,"%lfk",_wid);
		execl("/usr/bin/play", "play", "-q", spect->fname,
				"trim", start, end, "bandpass", mid, wid,
				"speed", sp, NULL);
		perror("Fex Play");
		exit(1);
	}
	/* draw cursor while playing */
	int i, step = 12;
	double dur = _end - _start;
	useconds_t usec = dur * 1000000.0 * step / (double) ww;
	step = speed * step + 0.5;
	for (i = 0; i < ww; i+=step) {
		XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
		XDrawLine(dpy, win, gc, i, 0, i, wh);
		XDrawLine(dpy, win, gc, i+step, 0, i+step, wh);
		XFlush(dpy);
		usleep(usec);
	}
	XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
	XFlush(dpy);
	return 0;
}

int pt_line(double p, double l) {
	conf.col[RGBA_POINTS].w += p;
	conf.col[RGBA_LINES].w += l;
	if (conf.col[RGBA_POINTS].w < 0) conf.col[RGBA_POINTS].w = 0.0;
	if (conf.col[RGBA_LINES].w < 0) conf.col[RGBA_LINES].w = 0.0;
	spectro_points();
	spectro_draw();
	XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
	return 0;
}

int screenshot() {
	char fname[256];
	static int n = 0;
	snprintf(fname, 256, "%s-%d.png", spect->name, n++);
	cairo_surface_t *t = cairo_xlib_surface_create(dpy, buf,
			DefaultVisual(dpy,scr), ww, wh);
	cairo_surface_write_to_png(t, fname);
	cairo_surface_destroy(t);
	return 0;
}

int series_export() {
	static int n = 0;
	double *dat = malloc(spect->fft_w * sizeof(double));
	int i, j, f;
	/* find the peak frequency relative to max for each time bin */
	for (i = spect->fft_x; i < spect->fft_w + spect->fft_x; ++i) {
		f = 0;
		for (j = spect->fft_y; j < spect->fft_h+spect->fft_y; ++j) {
				if (spect->fft->mask[i][j]) continue;
				if (spect->fft->amp[i][j] > spect->fft->amp[i][f] || !f)
					f = j;
		}
		if (f > 0 && spect->fft->amp[i][f] > conf.thresh)
			dat[i - spect->fft_x] = spect->fft->freq[f];
		else
			dat[i - spect->fft_x] = 0.0;
	}
	char *fname = malloc(strlen(spect->name) + 10);
	sprintf(fname, "%s%d.freq", spect->name, n++);
	f = open(fname, O_WRONLY | O_CREAT, 0644);
	write(f, dat, spect->fft_w * sizeof(double));
	close(f);
	free(fname);
	free(dat);
	return 0;
}

int sp_floor(double f) {
	conf.spect_floor += f;
	spectro_spec();
	spectro_draw();
	XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
	if (info->vis) info->draw(info);
	return 0;
}

int threshold(double f) {
	conf.thresh += f;
	spectro_thresh();
	spectro_points();
	spectro_draw();
	XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
	if (info->vis) info->draw(info);
	return 0;
}

int zoom(double f) {
	double px = xsc, py = ysc;
	xsc += f; ysc += f;
	if (xsc < 1.0) xsc = 1.0;
	if (ysc < 1.0) ysc = 1.0;
	xoff += (spect->fft_w/xsc - spect->fft_w/px) / 2.0;
	yoff += (spect->fft_h/py - spect->fft_h/ysc) / 2.0;
	if (f < 0) move(0,0); /* check offsets for bounds */
	spectro_draw();
	XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
	return 0;
}

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/


#define CtrlMask	ControlMask
void buttonpress(XEvent *ev) {
	XButtonEvent *e = &ev->xbutton;
	if (e->window == info->win) info->button(info, e);
	else if (e->state == (ControlMask | ShiftMask)) {
		if (e->button == 4) threshold(0.1);
		else if (e->button == 5) threshold(-0.1);
		else if (e->button == 6) sp_floor(-0.1);
		else if (e->button == 7) sp_floor(0.1);
	}
	else if (e->state == ControlMask) {
		if (e->button == 4) zoom(0.025);
		else if (e->button == 5) zoom(-0.025);
		else if (e->button == 6) return;
		else if (e->button == 7) return;
	}
	else if (e->state == Mod1Mask) {
		if (e->button == 4) eraser_cursor(1,1);
		else if (e->button == 5) eraser_cursor(-1,-1);
		else if (e->button == 6) eraser_cursor(-1,1);
		else if (e->button == 7) eraser_cursor(1,-1);
	}
	else if (e->state == ShiftMask) {
		if (e->button == 4) pt_line(0.2,0);
		else if (e->button == 5) pt_line(-0.2,0);
		else if (e->button == 6) pt_line(0,-0.2);
		else if (e->button == 7) pt_line(0,0.2);
	}
	else if (e->button == 4) move(0,-0.02);
	else if (e->button == 5) move(0,0.02);
	else if (e->button == 6) move(0.02,0);
	else if (e->button == 7) move(-0.02,0);
	else if (mode == MODE_ERASE && e->button == 1) erase(e->x, e->y);
	else if (mode == MODE_ERASE && e->button == 3) erase(-1,-1);
	else if (mode == MODE_CROP && e->button == 1) crop(e->x, e->y);
	while(XCheckMaskEvent(dpy, ButtonPressMask, ev));
}

void clientmessage(XEvent *ev) {
	XClientMessageEvent *e = &ev->xclient;
	if ( (Atom)e->data.l[0] == WM_DELETE_WINDOW ) {
		if (e->window == info->win) {
			info->vis = False;
			XUnmapWindow(dpy, info->win);
		}
		else if (e->window == win) {
			running = False;
		}
	}
}

void configurenotify(XEvent *ev) {
	while (XCheckTypedEvent(dpy,ConfigureNotify, ev));
	XConfigureEvent *e = &ev->xconfigure;
	if (e->window == win) {
		/* The XServer is not storing the new/current values for width +
		 * height.  These must be retrieved directly.
		 * Is this an X11 bug? */
		Window wig;
		int ig;
		unsigned int uig;
		XGetGeometry(dpy, win, &wig, &ig, &ig, &ww, &wh, &uig, &uig);
		//ww = e->width; wh = e->height;
		spectro_draw();
		XSetWindowBackgroundPixmap(dpy, win, buf);
		XClearWindow(dpy,win);
	}
}

void expose(XEvent *ev) {
	XExposeEvent *e = &ev->xexpose;
	if (e->window == info->win) info->draw(info);
	else {
		XSetWindowBackgroundPixmap(dpy, win, buf);
		XClearWindow(dpy,win);
	}
}

void keypress(XEvent *ev) {
	XKeyEvent *e = &ev->xkey;
	KeySym sym = XkbKeycodeToKeysym(dpy, (KeyCode)e->keycode, 0, 0);
	int mod = ((e->state & ~Mod2Mask) & ~LockMask);
	if (mod == (ControlMask | ShiftMask)) {
		if (sym == XK_q) {
			spect->fex = 0;
			running = False;
		}
		if (sym == XK_j || sym == XK_Down) threshold(-0.05);
		else if (sym == XK_k || sym == XK_Up) threshold(0.05);
		else if (sym == XK_h || sym == XK_Left) sp_floor(-0.05);
		else if (sym == XK_l || sym == XK_Right) sp_floor(0.05);
		else if (sym == XK_p) play(0.1666);
	}
	else if (mod == (Mod1Mask | ShiftMask)) {
		if (sym == XK_p) play(0.08333);
	}
	else if (mod == ControlMask) {
		if (sym == XK_q) running = False;
		else if (sym == XK_f) series_export();
		else if (sym == XK_s) screenshot();
		else if (sym == XK_i) img_draw();
		else if (sym == XK_j || sym == XK_Down) zoom(-0.025);
		else if (sym == XK_k || sym == XK_Up) zoom(0.025);
		else if (sym == XK_h || sym == XK_Left) return;
		else if (sym == XK_l || sym == XK_Right) return;
		else if (sym == XK_p) play(0.33);
	}
	else if (mod == Mod1Mask) {
		if (sym == XK_j || sym == XK_Down) eraser_cursor(-1,-1);
		else if (sym == XK_k || sym == XK_Up) eraser_cursor(1,1);
		else if (sym == XK_h || sym == XK_Left) eraser_cursor(-1,1);
		else if (sym == XK_l || sym == XK_Right) eraser_cursor(1,-1);
		else if (sym == XK_p) play(0.25);
	}
	else if (mod == ShiftMask) {
		if (sym == XK_j || sym == XK_Down) pt_line(-0.2,0);
		else if (sym == XK_k || sym == XK_Up) pt_line(0.2,0);
		else if (sym == XK_h || sym == XK_Left) pt_line(0,-0.2);
		else if (sym == XK_l || sym == XK_Right) pt_line(0,0.2);
		else if (sym == XK_p) play(0.5);
	}
	else if (sym == XK_j || sym == XK_Down) move(0,0.02);
	else if (sym == XK_k || sym == XK_Up) move(0,-0.02);
	else if (sym == XK_h || sym == XK_Left) move(0.02,0);
	else if (sym == XK_l || sym == XK_Right) move(-0.02,0);
	else if (sym == XK_F1) {
		if (fork() == 0) {
			close(ConnectionNumber(dpy));
			fclose(stderr);
			fclose(stdout);
			execvp(conf.help_cmd[0],(char * const *)conf.help_cmd);
		}
	}
	else if (sym == XK_F2) {
		if ( (info->vis = !info->vis) ) XMapRaised(dpy,info->win);
		else XUnmapWindow(dpy,info->win);
		XFlush(dpy);
	}
	else if (sym == XK_e) {
		//mode = MODE_ERASE & (mode ^= MODE_ERASE);
		mode = (mode & MODE_ERASE ? 0 : MODE_ERASE);
		eraser_cursor(0,0);
		info->draw(info);
	}
	else if (sym == XK_c) {
		//mode = MODE_CROP & (mode ^= MODE_CROP);
		mode = (mode & MODE_CROP ? 0 : MODE_CROP);
		if (!(mode & MODE_CROP)) XDefineCursor(dpy, win, None);
		else XDefineCursor(dpy, win, XCreateFontCursor(dpy, 34));
		info->draw(info);
	}
	else if (sym == XK_Escape) {
		mode = MODE_NULL;
		XDefineCursor(dpy, win, None);
		info->draw(info);
	}
	else if (sym == XK_p) play(1.0);
	else if (sym == XK_t) {
		conf.layers = !conf.layers;
		spectro_draw();
		XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
	}
	else if (sym == XK_u && mode & (MODE_ERASE)) erase(-1,-1);
	while(XCheckMaskEvent(dpy, KeyPressMask, ev));
}

void motionnotify(XEvent *ev) {
	//static int px, py;
	int x = ev->xmotion.x, y = ev->xmotion.y;
	mx = spect->fft_w * x / (xsc * ww) - 1.0 * xoff + spect->fft_x;
	my = spect->fft_h * (1.0 - y / (ysc * wh)) - 1.0 * yoff + spect->fft_y;
	info->draw(info);
	if (mode == MODE_CROP) {
		XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
		XDrawLine(dpy, win, gc, x, 0, x, wh);
		XDrawLine(dpy, win, gc, 0, y, ww, y);
	}
}

/**********************************************************************\
* FEX - The Frequency Excursion Calculator
*
* Author: Jesse McClure, copyright 2013-2014
* License: GPL3
*
*    This program is free software: you can redistribute it and/or
*    modify it under the terms of the GNU General Public License as
*    published by the Free Software Foundation, either version 3 of the
*    License, or (at your option) any later version.
*
*    This program is distributed in the hope that it will be useful, but
*    WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*    General Public License for more details.
*
*    You should have received a copy of the GNU General Public License
*    along with this program.  If not, see
*    <http://www.gnu.org/licenses/>.
*
\**********************************************************************/

typedef struct ToolWin ToolWin;
struct ToolWin {
	Window win;
	Pixmap buf;
	int w, h;
	char *name;
	cairo_t *ctx;
	Bool vis;
	int (*backing)(ToolWin *);
	int (*draw)(ToolWin *);
	int (*button)(ToolWin *, XButtonEvent *);
};

static int toolwin_backing(ToolWin *);
//static int toolwin_button(ToolWin *, XButtonEvent *);
static int toolwin_create();
static int toolwin_destroy();
static int toolwin_draw(ToolWin *);
static int toolwin_win_create(ToolWin *);
static int toolwin_win_destroy(ToolWin *);

static ToolWin *info; //, *help;
//static char *help_name = "FEX Help";
static cairo_text_extents_t ext;


//static int help_draw(ToolWin *tw) {
//	toolwin_backing(tw);
//	cairo_set_source_rgba(tw->ctx,0,0,0,1.0);
//	cairo_rectangle(tw->ctx, 10, 10, 460, 300);
//	cairo_stroke_preserve(tw->ctx);
//	cairo_set_source_rgba(tw->ctx,0.8,0.8,0.8,1.0);
//	cairo_fill(tw->ctx);
////	cairo_surface_t *img = cairo_image_surface_create_from_png(
////			"./help.png");
////	cairo_set_source_surface(tw->ctx,img, 8, 8);
////	cairo_paint(tw->ctx);
////	cairo_surface_destroy(img);
//
//	toolwin_draw(tw);
//}

#define MARGIN		4.0
#define MAX_STRING	256
#define A_LEFT		0x00
#define A_CENTER	0x01
#define A_RIGHT	0x02
static int info_printf(ToolWin *tw, int align, char *fmt, ...) {
	char str[MAX_STRING];
	va_list arg;
	va_start(arg, fmt);
	vsprintf(str, fmt, arg);
	va_end(arg);
	cairo_text_extents(tw->ctx,str,&ext);
	double x = (align == A_RIGHT ? tw->w - ext.x_advance - MARGIN :
			(align == A_CENTER ? (tw->w - ext.x_advance) / 2.0 : MARGIN));
	cairo_rel_move_to(tw->ctx, x, conf.font_size);
	cairo_show_text(tw->ctx,str);
	cairo_rel_move_to(tw->ctx, -1.0 * ext.x_advance - x, conf.font_size / 3.0);
	return 0;
}

static int info_split_printf(ToolWin *tw, char *bold, char *fmt, ...) {
	char str[MAX_STRING];
	va_list arg;
	va_start(arg, fmt);
	vsprintf(str, fmt, arg);
	va_end(arg);
	cairo_set_font_face(tw->ctx, conf.bfont);
	cairo_text_extents(tw->ctx,bold,&ext);
	cairo_rel_move_to(tw->ctx, MARGIN, conf.font_size);
	cairo_show_text(tw->ctx,bold);
	cairo_rel_move_to(tw->ctx, -1.0 * ext.x_advance - MARGIN, 0);
	cairo_set_font_face(tw->ctx, conf.font);
	cairo_text_extents(tw->ctx,str,&ext);
	cairo_rel_move_to(tw->ctx, tw->w - ext.x_advance - MARGIN, 0);
	cairo_show_text(tw->ctx,str);
	cairo_rel_move_to(tw->ctx, MARGIN - tw->w, conf.font_size / 3.0);
	return 0;
}

static int info_draw(ToolWin *tw) {
	toolwin_backing(tw);
	/* info */
	cairo_set_source_rgba(tw->ctx,0,0,0,1.0);
	cairo_set_font_face(tw->ctx, conf.bfont);
	cairo_move_to(tw->ctx, 0, 8);
	info_printf(tw, A_CENTER, "%.3lf sec, %.2lf KHz",
			spect->fft->time[mx],spect->fft->freq[my]);
	cairo_rel_move_to(tw->ctx,0,12);
	info_split_printf(tw, "Threshold:", "%.2lf", -1.0 * conf.thresh);
	info_split_printf(tw, "Spectrogram Floor:", "%.2lf",
			-1.0 * conf.spect_floor);
	info_split_printf(tw, "Path Length:","%.2lf", spect->pex);
	info_split_printf(tw, "Path Duration:","%.3lf", spect->tex);
	info_split_printf(tw, "Frequency Excursion:","%.3lf", spect->fex);
	cairo_move_to(tw->ctx, 0, 145);
	/* modes */
	info_split_printf(tw, "Modes:","");
	cairo_set_font_face(tw->ctx, conf.bfont);
		/* erase */
	set_color(tw->ctx,RGBA_ERASE1)
	if (mode & MODE_ERASE) set_color(tw->ctx,RGBA_ERASE1)
	else cairo_set_source_rgba(tw->ctx,0.8,0.8,0.8,1.0);
	cairo_rectangle(tw->ctx, 10, 170, tw->w / 2.0 - 15, 20);
	cairo_fill_preserve(tw->ctx);
	cairo_set_source_rgba(tw->ctx,0,0,0,1.0);
	cairo_stroke(tw->ctx);
	cairo_text_extents(tw->ctx,"Erase",&ext);
	cairo_move_to(tw->ctx, tw->w / 4.0 - ext.width / 2.0, 185);
	cairo_set_source_rgba(tw->ctx,0,0,0,1.0);
	cairo_show_text(tw->ctx,"Erase");
		/* crop */
	if (mode & MODE_CROP) set_color(tw->ctx, RGBA_CROP)
	else cairo_set_source_rgba(tw->ctx,0.8,0.8,0.8,1.0);
	cairo_rectangle(tw->ctx, 5 + tw->w / 2.0, 170, tw->w / 2.0 - 15, 20);
	cairo_fill_preserve(tw->ctx);
	cairo_set_source_rgba(tw->ctx,0.0,0.0,0.0,1.0);
	cairo_stroke(tw->ctx);
	cairo_text_extents(tw->ctx,"Crop",&ext);
	cairo_move_to(tw->ctx, tw->w * 0.75 - ext.width / 2.0, 185);
	cairo_set_source_rgba(tw->ctx,0,0,0,1.0);
	cairo_show_text(tw->ctx,"Crop");
	/* draw */
	toolwin_draw(tw);
	return 0;
}

static int info_button(ToolWin *tw, XButtonEvent *e) {
	if (e->y < 170 || e->y > 190) return 0;
	if (e->x < 10 || e->x > tw->w - 10) return 0;
	if (e->x < tw->w / 2.0 - 5) { /* erase button */
		if (e->button == 1) {
			//mode = MODE_ERASE & (mode ^= MODE_ERASE);
			mode = (mode & MODE_ERASE ? 0 : MODE_ERASE);
			eraser_cursor(0,0);
			tw->draw(tw);
		}
	}
	else { /* crop button */
		if (e->button == 1) {
			//mode = MODE_CROP & (mode ^= MODE_CROP);
			mode = (mode & MODE_CROP ? 0 : MODE_CROP);
			if (!(mode & MODE_CROP)) XDefineCursor(dpy, win, None);
			else XDefineCursor(dpy, win, XCreateFontCursor(dpy, 34));
			tw->draw(tw);
		}
		else if (e->button == 3) { /* uncrop */
			mode |= MODE_CROP;
			tw->draw(tw);
			spect->fft_x = 0;
			spect->fft_y = spect->fft_lo;
			spect->fft_w = spect->fft->ntime;
			spect->fft_h = spect->fft_hi - spect->fft_lo;
			spectro_spec();
			spectro_thresh();
			spectro_points();
			spectro_draw();
			XCopyArea(dpy, buf, win, gc, 0, 0, ww, wh, 0, 0);
			mode &= ~MODE_CROP;
			tw->draw(tw);
		}
	}
	return 0;
}

int toolwin_backing(ToolWin *tw) {
	cairo_set_source_rgba(tw->ctx,0.6,0.6,0.6,1.0);
	cairo_rectangle(tw->ctx, 0, 0, tw->w,tw->h);
	cairo_fill(tw->ctx);
	return 0;
}

//int toolwin_button(ToolWin *tw, XButtonEvent *e) {
//	XRaiseWindow(dpy, tw->win);
//	return 0;
//}

int toolwin_create() {
	info = (ToolWin *) calloc(1, sizeof(ToolWin));
	//help = (ToolWin *) calloc(1, sizeof(ToolWin));
	info->w = 240; info->h = 200;
	info->name = spect->name;
	info->vis = True;
	info->draw = info_draw;
	info->button = info_button;
	//help->w = 480; help->h = 320;
	//help->name = help_name;
	//help->vis = False;
	//help->draw = help_draw;
	//help->button = toolwin_button;
	toolwin_win_create(info);
	//toolwin_win_create(help);
	return 0;
}

int toolwin_destroy() {
	toolwin_win_destroy(info);
	//toolwin_win_destroy(help);
	free(info);
	//free(help);
	return 0;
}

int toolwin_draw(ToolWin *tw) {
	XClearWindow(dpy,tw->win);
	XFlush(dpy);
	return 0;
}

int toolwin_win_create(ToolWin *tw) {
	tw->win = XCreateSimpleWindow(dpy, root, 20, 20, tw->w, tw->h, 0, 0, 0);
	tw->buf = XCreatePixmap(dpy, root, tw->w, tw->h, DefaultDepth(dpy,scr));
	cairo_surface_t *t = cairo_xlib_surface_create(dpy, tw->buf,
			DefaultVisual(dpy,scr), tw->w, tw->h);
	tw->ctx = cairo_create(t);
	cairo_surface_destroy(t);
	cairo_set_font_face(tw->ctx,conf.font);
	cairo_set_font_size(tw->ctx,conf.font_size);
	XSelectInput(dpy, tw->win, EVENT_MASK);
	XSetTransientForHint(dpy, tw->win, win);
	XSetWMProtocols(dpy, tw->win, &WM_DELETE_WINDOW, 1);
	XSizeHints *hints = XAllocSizeHints();
	hints->min_width = hints->max_width = tw->w;
	hints->min_height = hints->max_height = tw->h;
	hints->flags = PMinSize | PMaxSize;
	XSetWMNormalHints(dpy, tw->win, hints);
	XFree(hints);
	XStoreName(dpy, tw->win, tw->name);
	if (tw->backing) tw->backing(tw);
	else toolwin_backing(tw);
	XSetWindowBackgroundPixmap(dpy, tw->win, tw->buf);
	XFlush(dpy);
	return 0;
}

int toolwin_win_destroy(ToolWin *tw) {
	cairo_destroy(tw->ctx);
	XDestroyWindow(dpy, tw->win);
	XFreePixmap(dpy, tw->buf);
	return 0;
}

gcc -c -o example.o example.c -I"C:\Program Files\Common Files\MinGW\GLUT\include"

gcc -o example.exe example.o -L"C:\Program Files\Common Files\MinGW\GLUT\lib" -lglut32 -lopengl32 -Wl,--subsystem,windows