1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/.hgignore	Sat Dec 27 02:35:58 2014 +0200
     1.3 @@ -0,0 +1,4 @@
     1.4 +\.o$
     1.5 +\.d$
     1.6 +\.swp$
     1.7 +^dicomview$

     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/COPYING	Sat Dec 27 02:35:58 2014 +0200
     2.3 @@ -0,0 +1,674 @@
     2.4 +                    GNU GENERAL PUBLIC LICENSE
     2.5 +                       Version 3, 29 June 2007
     2.6 +
     2.7 + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
     2.8 + Everyone is permitted to copy and distribute verbatim copies
     2.9 + of this license document, but changing it is not allowed.
    2.10 +
    2.11 +                            Preamble
    2.12 +
    2.13 +  The GNU General Public License is a free, copyleft license for
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    2.15 +
    2.16 +  The licenses for most software and other practical works are designed
    2.17 +to take away your freedom to share and change the works.  By contrast,
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    2.20 +software for all its users.  We, the Free Software Foundation, use the
    2.21 +GNU General Public License for most of our software; it applies also to
    2.22 +any other work released this way by its authors.  You can apply it to
    2.23 +your programs, too.
    2.24 +
    2.25 +  When we speak of free software, we are referring to freedom, not
    2.26 +price.  Our General Public Licenses are designed to make sure that you
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    2.37 +  For example, if you distribute copies of such a program, whether
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    2.43 +  Developers that use the GNU GPL protect your rights with two steps:
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    2.47 +  For the developers' and authors' protection, the GPL clearly explains
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    2.53 +  Some devices are designed to deny users access to install or run
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    2.73 +
    2.74 +                       TERMS AND CONDITIONS
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    2.76 +  0. Definitions.
    2.77 +
    2.78 +  "This License" refers to version 3 of the GNU General Public License.
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    2.80 +  "Copyright" also means copyright-like laws that apply to other kinds of
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    2.82 +
    2.83 +  "The Program" refers to any copyrightable work licensed under this
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    2.87 +  To "modify" a work means to copy from or adapt all or part of the work
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   2.115 +  1. Source Code.
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   2.154 +  The Corresponding Source for a work in source code form is that
   2.155 +same work.
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   2.157 +  2. Basic Permissions.
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   2.159 +  All rights granted under this License are granted for the term of
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   2.167 +  You may make, run and propagate covered works that you do not
   2.168 +convey, without conditions so long as your license otherwise remains
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   2.170 +of having them make modifications exclusively for you, or provide you
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   2.181 +
   2.182 +  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
   2.183 +
   2.184 +  No covered work shall be deemed part of an effective technological
   2.185 +measure under any applicable law fulfilling obligations under article
   2.186 +11 of the WIPO copyright treaty adopted on 20 December 1996, or
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   2.189 +
   2.190 +  When you convey a covered work, you waive any legal power to forbid
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   2.198 +  4. Conveying Verbatim Copies.
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   2.200 +  You may convey verbatim copies of the Program's source code as you
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   2.206 +recipients a copy of this License along with the Program.
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   2.208 +  You may charge any price or no price for each copy that you convey,
   2.209 +and you may offer support or warranty protection for a fee.
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   2.211 +  5. Conveying Modified Source Versions.
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   2.213 +  You may convey a work based on the Program, or the modifications to
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   2.217 +    a) The work must carry prominent notices stating that you modified
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   2.220 +    b) The work must carry prominent notices stating that it is
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   2.223 +    "keep intact all notices".
   2.224 +
   2.225 +    c) You must license the entire work, as a whole, under this
   2.226 +    License to anyone who comes into possession of a copy.  This
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   2.229 +    regardless of how they are packaged.  This License gives no
   2.230 +    permission to license the work in any other way, but it does not
   2.231 +    invalidate such permission if you have separately received it.
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   2.233 +    d) If the work has interactive user interfaces, each must display
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   2.237 +
   2.238 +  A compilation of a covered work with other separate and independent
   2.239 +works, which are not by their nature extensions of the covered work,
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   2.242 +"aggregate" if the compilation and its resulting copyright are not
   2.243 +used to limit the access or legal rights of the compilation's users
   2.244 +beyond what the individual works permit.  Inclusion of a covered work
   2.245 +in an aggregate does not cause this License to apply to the other
   2.246 +parts of the aggregate.
   2.247 +
   2.248 +  6. Conveying Non-Source Forms.
   2.249 +
   2.250 +  You may convey a covered work in object code form under the terms
   2.251 +of sections 4 and 5, provided that you also convey the
   2.252 +machine-readable Corresponding Source under the terms of this License,
   2.253 +in one of these ways:
   2.254 +
   2.255 +    a) Convey the object code in, or embodied in, a physical product
   2.256 +    (including a physical distribution medium), accompanied by the
   2.257 +    Corresponding Source fixed on a durable physical medium
   2.258 +    customarily used for software interchange.
   2.259 +
   2.260 +    b) Convey the object code in, or embodied in, a physical product
   2.261 +    (including a physical distribution medium), accompanied by a
   2.262 +    written offer, valid for at least three years and valid for as
   2.263 +    long as you offer spare parts or customer support for that product
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   2.265 +    copy of the Corresponding Source for all the software in the
   2.266 +    product that is covered by this License, on a durable physical
   2.267 +    medium customarily used for software interchange, for a price no
   2.268 +    more than your reasonable cost of physically performing this
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   2.270 +    Corresponding Source from a network server at no charge.
   2.271 +
   2.272 +    c) Convey individual copies of the object code with a copy of the
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   2.274 +    alternative is allowed only occasionally and noncommercially, and
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   2.276 +    with subsection 6b.
   2.277 +
   2.278 +    d) Convey the object code by offering access from a designated
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   2.290 +
   2.291 +    e) Convey the object code using peer-to-peer transmission, provided
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   2.295 +
   2.296 +  A separable portion of the object code, whose source code is excluded
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   2.298 +included in conveying the object code work.
   2.299 +
   2.300 +  A "User Product" is either (1) a "consumer product", which means any
   2.301 +tangible personal property which is normally used for personal, family,
   2.302 +or household purposes, or (2) anything designed or sold for incorporation
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   2.306 +typical or common use of that class of product, regardless of the status
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   2.311 +the only significant mode of use of the product.
   2.312 +
   2.313 +  "Installation Information" for a User Product means any methods,
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   2.315 +and execute modified versions of a covered work in that User Product from
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   2.319 +modification has been made.
   2.320 +
   2.321 +  If you convey an object code work under this section in, or with, or
   2.322 +specifically for use in, a User Product, and the conveying occurs as
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   2.329 +modified object code on the User Product (for example, the work has
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   2.331 +
   2.332 +  The requirement to provide Installation Information does not include a
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   2.340 +  Corresponding Source conveyed, and Installation Information provided,
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   2.344 +unpacking, reading or copying.
   2.345 +
   2.346 +  7. Additional Terms.
   2.347 +
   2.348 +  "Additional permissions" are terms that supplement the terms of this
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   2.350 +Additional permissions that are applicable to the entire Program shall
   2.351 +be treated as though they were included in this License, to the extent
   2.352 +that they are valid under applicable law.  If additional permissions
   2.353 +apply only to part of the Program, that part may be used separately
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   2.357 +  When you convey a copy of a covered work, you may at your option
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   2.364 +  Notwithstanding any other provision of this License, for material you
   2.365 +add to a covered work, you may (if authorized by the copyright holders of
   2.366 +that material) supplement the terms of this License with terms:
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   2.368 +    a) Disclaiming warranty or limiting liability differently from the
   2.369 +    terms of sections 15 and 16 of this License; or
   2.370 +
   2.371 +    b) Requiring preservation of specified reasonable legal notices or
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   2.382 +    e) Declining to grant rights under trademark law for use of some
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   2.391 +  All other non-permissive additional terms are considered "further
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   2.393 +received it, or any part of it, contains a notice stating that it is
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   2.400 +
   2.401 +  If you add terms to a covered work in accord with this section, you
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   2.406 +  Additional terms, permissive or non-permissive, may be stated in the
   2.407 +form of a separately written license, or stated as exceptions;
   2.408 +the above requirements apply either way.
   2.409 +
   2.410 +  8. Termination.
   2.411 +
   2.412 +  You may not propagate or modify a covered work except as expressly
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   2.415 +this License (including any patent licenses granted under the third
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   2.417 +
   2.418 +  However, if you cease all violation of this License, then your
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   2.420 +provisionally, unless and until the copyright holder explicitly and
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   2.424 +
   2.425 +  Moreover, your license from a particular copyright holder is
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   2.427 +violation by some reasonable means, this is the first time you have
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   2.432 +  Termination of your rights under this section does not terminate the
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   2.437 +
   2.438 +  9. Acceptance Not Required for Having Copies.
   2.439 +
   2.440 +  You are not required to accept this License in order to receive or
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   2.442 +occurring solely as a consequence of using peer-to-peer transmission
   2.443 +to receive a copy likewise does not require acceptance.  However,
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   2.447 +covered work, you indicate your acceptance of this License to do so.
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   2.449 +  10. Automatic Licensing of Downstream Recipients.
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   2.451 +  Each time you convey a covered work, the recipient automatically
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   2.456 +  An "entity transaction" is a transaction transferring control of an
   2.457 +organization, or substantially all assets of one, or subdividing an
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   2.464 +the predecessor has it or can get it with reasonable efforts.
   2.465 +
   2.466 +  You may not impose any further restrictions on the exercise of the
   2.467 +rights granted or affirmed under this License.  For example, you may
   2.468 +not impose a license fee, royalty, or other charge for exercise of
   2.469 +rights granted under this License, and you may not initiate litigation
   2.470 +(including a cross-claim or counterclaim in a lawsuit) alleging that
   2.471 +any patent claim is infringed by making, using, selling, offering for
   2.472 +sale, or importing the Program or any portion of it.
   2.473 +
   2.474 +  11. Patents.
   2.475 +
   2.476 +  A "contributor" is a copyright holder who authorizes use under this
   2.477 +License of the Program or a work on which the Program is based.  The
   2.478 +work thus licensed is called the contributor's "contributor version".
   2.479 +
   2.480 +  A contributor's "essential patent claims" are all patent claims
   2.481 +owned or controlled by the contributor, whether already acquired or
   2.482 +hereafter acquired, that would be infringed by some manner, permitted
   2.483 +by this License, of making, using, or selling its contributor version,
   2.484 +but do not include claims that would be infringed only as a
   2.485 +consequence of further modification of the contributor version.  For
   2.486 +purposes of this definition, "control" includes the right to grant
   2.487 +patent sublicenses in a manner consistent with the requirements of
   2.488 +this License.
   2.489 +
   2.490 +  Each contributor grants you a non-exclusive, worldwide, royalty-free
   2.491 +patent license under the contributor's essential patent claims, to
   2.492 +make, use, sell, offer for sale, import and otherwise run, modify and
   2.493 +propagate the contents of its contributor version.
   2.494 +
   2.495 +  In the following three paragraphs, a "patent license" is any express
   2.496 +agreement or commitment, however denominated, not to enforce a patent
   2.497 +(such as an express permission to practice a patent or covenant not to
   2.498 +sue for patent infringement).  To "grant" such a patent license to a
   2.499 +party means to make such an agreement or commitment not to enforce a
   2.500 +patent against the party.
   2.501 +
   2.502 +  If you convey a covered work, knowingly relying on a patent license,
   2.503 +and the Corresponding Source of the work is not available for anyone
   2.504 +to copy, free of charge and under the terms of this License, through a
   2.505 +publicly available network server or other readily accessible means,
   2.506 +then you must either (1) cause the Corresponding Source to be so
   2.507 +available, or (2) arrange to deprive yourself of the benefit of the
   2.508 +patent license for this particular work, or (3) arrange, in a manner
   2.509 +consistent with the requirements of this License, to extend the patent
   2.510 +license to downstream recipients.  "Knowingly relying" means you have
   2.511 +actual knowledge that, but for the patent license, your conveying the
   2.512 +covered work in a country, or your recipient's use of the covered work
   2.513 +in a country, would infringe one or more identifiable patents in that
   2.514 +country that you have reason to believe are valid.
   2.515 +
   2.516 +  If, pursuant to or in connection with a single transaction or
   2.517 +arrangement, you convey, or propagate by procuring conveyance of, a
   2.518 +covered work, and grant a patent license to some of the parties
   2.519 +receiving the covered work authorizing them to use, propagate, modify
   2.520 +or convey a specific copy of the covered work, then the patent license
   2.521 +you grant is automatically extended to all recipients of the covered
   2.522 +work and works based on it.
   2.523 +
   2.524 +  A patent license is "discriminatory" if it does not include within
   2.525 +the scope of its coverage, prohibits the exercise of, or is
   2.526 +conditioned on the non-exercise of one or more of the rights that are
   2.527 +specifically granted under this License.  You may not convey a covered
   2.528 +work if you are a party to an arrangement with a third party that is
   2.529 +in the business of distributing software, under which you make payment
   2.530 +to the third party based on the extent of your activity of conveying
   2.531 +the work, and under which the third party grants, to any of the
   2.532 +parties who would receive the covered work from you, a discriminatory
   2.533 +patent license (a) in connection with copies of the covered work
   2.534 +conveyed by you (or copies made from those copies), or (b) primarily
   2.535 +for and in connection with specific products or compilations that
   2.536 +contain the covered work, unless you entered into that arrangement,
   2.537 +or that patent license was granted, prior to 28 March 2007.
   2.538 +
   2.539 +  Nothing in this License shall be construed as excluding or limiting
   2.540 +any implied license or other defenses to infringement that may
   2.541 +otherwise be available to you under applicable patent law.
   2.542 +
   2.543 +  12. No Surrender of Others' Freedom.
   2.544 +
   2.545 +  If conditions are imposed on you (whether by court order, agreement or
   2.546 +otherwise) that contradict the conditions of this License, they do not
   2.547 +excuse you from the conditions of this License.  If you cannot convey a
   2.548 +covered work so as to satisfy simultaneously your obligations under this
   2.549 +License and any other pertinent obligations, then as a consequence you may
   2.550 +not convey it at all.  For example, if you agree to terms that obligate you
   2.551 +to collect a royalty for further conveying from those to whom you convey
   2.552 +the Program, the only way you could satisfy both those terms and this
   2.553 +License would be to refrain entirely from conveying the Program.
   2.554 +
   2.555 +  13. Use with the GNU Affero General Public License.
   2.556 +
   2.557 +  Notwithstanding any other provision of this License, you have
   2.558 +permission to link or combine any covered work with a work licensed
   2.559 +under version 3 of the GNU Affero General Public License into a single
   2.560 +combined work, and to convey the resulting work.  The terms of this
   2.561 +License will continue to apply to the part which is the covered work,
   2.562 +but the special requirements of the GNU Affero General Public License,
   2.563 +section 13, concerning interaction through a network will apply to the
   2.564 +combination as such.
   2.565 +
   2.566 +  14. Revised Versions of this License.
   2.567 +
   2.568 +  The Free Software Foundation may publish revised and/or new versions of
   2.569 +the GNU General Public License from time to time.  Such new versions will
   2.570 +be similar in spirit to the present version, but may differ in detail to
   2.571 +address new problems or concerns.
   2.572 +
   2.573 +  Each version is given a distinguishing version number.  If the
   2.574 +Program specifies that a certain numbered version of the GNU General
   2.575 +Public License "or any later version" applies to it, you have the
   2.576 +option of following the terms and conditions either of that numbered
   2.577 +version or of any later version published by the Free Software
   2.578 +Foundation.  If the Program does not specify a version number of the
   2.579 +GNU General Public License, you may choose any version ever published
   2.580 +by the Free Software Foundation.
   2.581 +
   2.582 +  If the Program specifies that a proxy can decide which future
   2.583 +versions of the GNU General Public License can be used, that proxy's
   2.584 +public statement of acceptance of a version permanently authorizes you
   2.585 +to choose that version for the Program.
   2.586 +
   2.587 +  Later license versions may give you additional or different
   2.588 +permissions.  However, no additional obligations are imposed on any
   2.589 +author or copyright holder as a result of your choosing to follow a
   2.590 +later version.
   2.591 +
   2.592 +  15. Disclaimer of Warranty.
   2.593 +
   2.594 +  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
   2.595 +APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
   2.596 +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
   2.597 +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
   2.598 +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   2.599 +PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
   2.600 +IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
   2.601 +ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
   2.602 +
   2.603 +  16. Limitation of Liability.
   2.604 +
   2.605 +  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
   2.606 +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
   2.607 +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
   2.608 +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
   2.609 +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
   2.610 +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
   2.611 +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
   2.612 +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
   2.613 +SUCH DAMAGES.
   2.614 +
   2.615 +  17. Interpretation of Sections 15 and 16.
   2.616 +
   2.617 +  If the disclaimer of warranty and limitation of liability provided
   2.618 +above cannot be given local legal effect according to their terms,
   2.619 +reviewing courts shall apply local law that most closely approximates
   2.620 +an absolute waiver of all civil liability in connection with the
   2.621 +Program, unless a warranty or assumption of liability accompanies a
   2.622 +copy of the Program in return for a fee.
   2.623 +
   2.624 +                     END OF TERMS AND CONDITIONS
   2.625 +
   2.626 +            How to Apply These Terms to Your New Programs
   2.627 +
   2.628 +  If you develop a new program, and you want it to be of the greatest
   2.629 +possible use to the public, the best way to achieve this is to make it
   2.630 +free software which everyone can redistribute and change under these terms.
   2.631 +
   2.632 +  To do so, attach the following notices to the program.  It is safest
   2.633 +to attach them to the start of each source file to most effectively
   2.634 +state the exclusion of warranty; and each file should have at least
   2.635 +the "copyright" line and a pointer to where the full notice is found.
   2.636 +
   2.637 +    <one line to give the program's name and a brief idea of what it does.>
   2.638 +    Copyright (C) <year>  <name of author>
   2.639 +
   2.640 +    This program is free software: you can redistribute it and/or modify
   2.641 +    it under the terms of the GNU General Public License as published by
   2.642 +    the Free Software Foundation, either version 3 of the License, or
   2.643 +    (at your option) any later version.
   2.644 +
   2.645 +    This program is distributed in the hope that it will be useful,
   2.646 +    but WITHOUT ANY WARRANTY; without even the implied warranty of
   2.647 +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   2.648 +    GNU General Public License for more details.
   2.649 +
   2.650 +    You should have received a copy of the GNU General Public License
   2.651 +    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   2.652 +
   2.653 +Also add information on how to contact you by electronic and paper mail.
   2.654 +
   2.655 +  If the program does terminal interaction, make it output a short
   2.656 +notice like this when it starts in an interactive mode:
   2.657 +
   2.658 +    <program>  Copyright (C) <year>  <name of author>
   2.659 +    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
   2.660 +    This is free software, and you are welcome to redistribute it
   2.661 +    under certain conditions; type `show c' for details.
   2.662 +
   2.663 +The hypothetical commands `show w' and `show c' should show the appropriate
   2.664 +parts of the General Public License.  Of course, your program's commands
   2.665 +might be different; for a GUI interface, you would use an "about box".
   2.666 +
   2.667 +  You should also get your employer (if you work as a programmer) or school,
   2.668 +if any, to sign a "copyright disclaimer" for the program, if necessary.
   2.669 +For more information on this, and how to apply and follow the GNU GPL, see
   2.670 +<http://www.gnu.org/licenses/>.
   2.671 +
   2.672 +  The GNU General Public License does not permit incorporating your program
   2.673 +into proprietary programs.  If your program is a subroutine library, you
   2.674 +may consider it more useful to permit linking proprietary applications with
   2.675 +the library.  If this is what you want to do, use the GNU Lesser General
   2.676 +Public License instead of this License.  But first, please read
   2.677 +<http://www.gnu.org/philosophy/why-not-lgpl.html>.

     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/Makefile	Sat Dec 27 02:35:58 2014 +0200
     3.3 @@ -0,0 +1,48 @@
     3.4 +csrc = $(wildcard src/*.c)
     3.5 +ccsrc = $(wildcard src/*.cc)
     3.6 +obj = $(csrc:.c=.o) $(ccsrc:.cc=.o)
     3.7 +dep = $(obj:.o=.d)
     3.8 +
     3.9 +bin = dicomview
    3.10 +
    3.11 +#opt = -O3 -ffast-math
    3.12 +dbg = -g
    3.13 +def = -DUSE_GLUT
    3.14 +#inc =
    3.15 +
    3.16 +CFLAGS = -pedantic -Wall $(opt) $(dbg) $(def) $(inc)
    3.17 +CXXFLAGS = $(CFLAGS)
    3.18 +LDFLAGS = $(libgl) -lm -limago
    3.19 +
    3.20 +ifeq ($(shell uname -s), Darwin)
    3.21 +	libgl = -framework OpenGL -framework GLUT -lGLEW
    3.22 +else
    3.23 +	libgl = -lGL -lGLU -lglut -lGLEW
    3.24 +endif
    3.25 +
    3.26 +$(bin): $(obj)
    3.27 +	$(CXX) -o $@ $(obj) $(LDFLAGS)
    3.28 +
    3.29 +-include $(dep)
    3.30 +
    3.31 +%.d: %.c
    3.32 +	@$(CPP) $(CFLAGS) $< -MM -MT $(@:.d=.o) >$@
    3.33 +
    3.34 +%.d: %.cc
    3.35 +	@$(CPP) $(CXXFLAGS) $< -MM -MT $(@:.d=.o) >$@
    3.36 +
    3.37 +.PHONY: clean
    3.38 +clean:
    3.39 +	rm -f $(obj) $(bin)
    3.40 +
    3.41 +.PHONY: cleandep
    3.42 +cleandep:
    3.43 +	rm -f $(dep)
    3.44 +
    3.45 +.PHONY: install
    3.46 +install:
    3.47 +	mkdir -p $(DESTDIR)$(PREFIX)/bin
    3.48 +	cp $(bin) $(DESTDIR)$(PREFIX)/bin/$(bin)
    3.49 +
    3.50 +.PHONY: uninstall
    3.51 +	rm -f $(bin) $(DESTDIR)$(PREFIX)/bin/$(bin)

     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/README	Sat Dec 27 02:35:58 2014 +0200
     4.3 @@ -0,0 +1,8 @@
     4.4 +dicom viewer
     4.5 +by John Tsiombikas
     4.6 +
     4.7 +Copyright (C) 2014 John Tsiombikas <nuclear@member.fsf.org>
     4.8 +This program is free software. You may use it, modify it, and redistribute it
     4.9 +(with or without modifications), under the terms of the GNU General Public
    4.10 +License version 3, or at your option, any newer version published by the Free
    4.11 +Software Foundation. See COPYING for details.

     5.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     5.2 +++ b/src/dicomview.cc	Sat Dec 27 02:35:58 2014 +0200
     5.3 @@ -0,0 +1,33 @@
     5.4 +#include "opengl.h"
     5.5 +#include "dicomview.h"
     5.6 +
     5.7 +static float cam_theta, cam_phi, cam_dist = 6;
     5.8 +
     5.9 +extern "C" {
    5.10 +
    5.11 +int init()
    5.12 +{
    5.13 +}
    5.14 +
    5.15 +void cleanup()
    5.16 +{
    5.17 +}
    5.18 +
    5.19 +void ev_display()
    5.20 +{
    5.21 +	glClear(GL_COLOR_BUFFER_BIT);
    5.22 +}
    5.23 +
    5.24 +void ev_reshape(int x, int y)
    5.25 +{
    5.26 +	win_width = x;
    5.27 +	win_height = y;
    5.28 +
    5.29 +	glViweport(0, 0, x, y);
    5.30 +}
    5.31 +
    5.32 +void ev_keyboard(int key, int press, int x, int y);
    5.33 +void ev_mouse_button(int bn, int press, int x, int y);
    5.34 +void ev_mouse_motion(int x, int y);
    5.35 +
    5.36 +}	// extern "C"

     6.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     6.2 +++ b/src/dicomview.h	Sat Dec 27 02:35:58 2014 +0200
     6.3 @@ -0,0 +1,26 @@
     6.4 +#ifndef DICOMVIEW_H_
     6.5 +#define DICOMVIEW_H_
     6.6 +
     6.7 +#ifdef __cplusplus
     6.8 +extern "C" {
     6.9 +#endif
    6.10 +
    6.11 +int init();
    6.12 +void cleanup();
    6.13 +
    6.14 +void ev_display();
    6.15 +void ev_reshape(int x, int y);
    6.16 +void ev_keyboard(int key, int press, int x, int y);
    6.17 +void ev_mouse_button(int bn, int press, int x, int y);
    6.18 +void ev_mouse_motion(int x, int y);
    6.19 +
    6.20 +// functions provided by the frontend
    6.21 +void swap_buffers();
    6.22 +void redisplay();
    6.23 +void quit();
    6.24 +
    6.25 +#ifdef __cplusplus
    6.26 +}
    6.27 +#endif
    6.28 +
    6.29 +#endif	// DICOMVIEW_H_

     7.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     7.2 +++ b/src/image.cc	Sat Dec 27 02:35:58 2014 +0200
     7.3 @@ -0,0 +1,49 @@
     7.4 +#include <imago2.h>
     7.5 +#include "image.h"
     7.6 +
     7.7 +Image::Image()
     7.8 +{
     7.9 +	width = height = 0;
    7.10 +	pixels = 0;
    7.11 +}
    7.12 +
    7.13 +Image::~Image()
    7.14 +{
    7.15 +	delete [] pixels;
    7.16 +}
    7.17 +
    7.18 +bool Image::set_pixels(int x, int y, float *data)
    7.19 +{
    7.20 +	float *new_pixels;
    7.21 +	try {
    7.22 +		new_pixels = new float[x * y];
    7.23 +	}
    7.24 +	catch(...) {
    7.25 +		return false;
    7.26 +	}
    7.27 +
    7.28 +	width = x;
    7.29 +	height = y;
    7.30 +
    7.31 +	delete [] pixels;
    7.32 +	pixels = new_pixels;
    7.33 +
    7.34 +	if(data) {
    7.35 +		memcpy(pixels, data, x * y * sizeof *data);
    7.36 +	}
    7.37 +	return true;
    7.38 +}
    7.39 +
    7.40 +bool Image::load(const char *fname)
    7.41 +{
    7.42 +	// TODO dicom loader ... ?
    7.43 +
    7.44 +	int x, y;
    7.45 +	float *pixels = img_load_pixels(fname, &x, &y, IMG_FMT_GREYF);
    7.46 +	if(!pixels) {
    7.47 +		return false;
    7.48 +	}
    7.49 +	bool res = set_pixels(x, y, pixels);
    7.50 +	img_free_pixels(pixels);
    7.51 +	return res;
    7.52 +}

     8.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     8.2 +++ b/src/image.h	Sat Dec 27 02:35:58 2014 +0200
     8.3 @@ -0,0 +1,18 @@
     8.4 +#ifndef IMAGE_H_
     8.5 +#define IMAGE_H_
     8.6 +
     8.7 +class Image {
     8.8 +public:
     8.9 +	int width, height;
    8.10 +	float *pixels;
    8.11 +
    8.12 +	Image();
    8.13 +	~Image();
    8.14 +
    8.15 +	// if data == 0, just allocate space
    8.16 +	bool set_pixels(int x, int y, float *data = 0);
    8.17 +
    8.18 +	bool load(const char *fname);
    8.19 +};
    8.20 +
    8.21 +#endif	// IMAGE_H_

     9.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     9.2 +++ b/src/main.cc	Sat Dec 27 02:35:58 2014 +0200
     9.3 @@ -0,0 +1,93 @@
     9.4 +// GLUT frontend
     9.5 +#ifdef USE_GLUT
     9.6 +
     9.7 +#include <stdlib.h>
     9.8 +#include "opengl.h"
     9.9 +
    9.10 +#ifdef __APPLE__
    9.11 +#include <GLUT/glut.h>
    9.12 +#else
    9.13 +#include <GL/glut.h>
    9.14 +#endif
    9.15 +
    9.16 +#include "dicomview.h"
    9.17 +
    9.18 +static void display();
    9.19 +static void reshape(int x, int y);
    9.20 +static void key_down(unsigned char key, int x, int y);
    9.21 +static void key_up(unsigned char key, int x, int y);
    9.22 +static void mouse(int bn, int state, int x, int y);
    9.23 +static void motion(int x, int y);
    9.24 +
    9.25 +static float cam_theta, cam_phi, cam_dist = 6;
    9.26 +
    9.27 +int main(int argc, char **argv)
    9.28 +{
    9.29 +	glutInit(&argc, argv);
    9.30 +	glutInitWindowSize(1280, 800);
    9.31 +	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
    9.32 +	glutCreateWindow("dicom viewer");
    9.33 +
    9.34 +	glutDisplayFunc(display);
    9.35 +	glutReshapeFunc(reshape);
    9.36 +	glutKeyboardFunc(keyb);
    9.37 +	glutMouseFunc(mouse);
    9.38 +	glutMotionFunc(motion);
    9.39 +
    9.40 +	glewInit();
    9.41 +
    9.42 +	if(init() == -1) {
    9.43 +		return 1;
    9.44 +	}
    9.45 +
    9.46 +	glutMainLoop();
    9.47 +	return 0;
    9.48 +}
    9.49 +
    9.50 +void swap_buffers()
    9.51 +{
    9.52 +	glutSwapBuffers();
    9.53 +}
    9.54 +
    9.55 +void redisplay()
    9.56 +{
    9.57 +	glutPostRedisplay();
    9.58 +}
    9.59 +
    9.60 +void quit()
    9.61 +{
    9.62 +	cleanup();
    9.63 +	exit(0);
    9.64 +}
    9.65 +
    9.66 +static void display()
    9.67 +{
    9.68 +	ev_display();
    9.69 +}
    9.70 +
    9.71 +static void reshape(int x, int y)
    9.72 +{
    9.73 +	ev_reshape(x, y);
    9.74 +}
    9.75 +
    9.76 +static void key_down(unsigned char key, int x, int y)
    9.77 +{
    9.78 +	ev_keyboard(key, 1, x, y);
    9.79 +}
    9.80 +
    9.81 +static void key_up(unsigned char key, int x, int y)
    9.82 +{
    9.83 +	ev_keyboard(key, 0, x, y);
    9.84 +}
    9.85 +
    9.86 +static void mouse(int bn, int state, int x, int y)
    9.87 +{
    9.88 +	ev_mouse_button(bn - GLUT_LEFT_BUTTON, state == GLUT_DOWN ? 1 : 0, x, y);
    9.89 +}
    9.90 +
    9.91 +static void motion(int x, int y)
    9.92 +{
    9.93 +	ev_mouse_motion(x, y);
    9.94 +}
    9.95 +
    9.96 +#endif	// USE_GLUT

    10.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    10.2 +++ b/src/opengl.h	Sat Dec 27 02:35:58 2014 +0200
    10.3 @@ -0,0 +1,17 @@
    10.4 +#ifndef OPENGL_H_
    10.5 +#define OPENGL_H_
    10.6 +
    10.7 +#include <GL/glew.h>
    10.8 +
    10.9 +#ifdef __APPLE__
   10.10 +#include <OpenGL/gl.h>
   10.11 +#else
   10.12 +
   10.13 +#ifdef WIN32
   10.14 +#include <windows.h>
   10.15 +#endif
   10.16 +
   10.17 +#include <GL/gl.h>
   10.18 +#endif
   10.19 +
   10.20 +#endif	/* OPENGL_H_ */

    11.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    11.2 +++ b/src/rend_fast.cc	Sat Dec 27 02:35:58 2014 +0200
    11.3 @@ -0,0 +1,102 @@
    11.4 +#include "opengl.h"
    11.5 +#include "rend_fast.h"
    11.6 +
    11.7 +RendererFast::RendererFast()
    11.8 +{
    11.9 +	vol_tex = 0;
   11.10 +	vol_tex_valid = false;
   11.11 +}
   11.12 +
   11.13 +bool RendererFast::init()
   11.14 +{
   11.15 +	glGenTextures(1, &vol_tex);
   11.16 +	glBindTexture(GL_TEXTURE_3D, vol_tex);
   11.17 +	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
   11.18 +	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
   11.19 +
   11.20 +	return true;
   11.21 +}
   11.22 +
   11.23 +void RendererFast::destroy()
   11.24 +{
   11.25 +	glDeleteTextures(1, &vol_tex);
   11.26 +}
   11.27 +
   11.28 +void RendererFast::update(unsigned int msec)
   11.29 +{
   11.30 +	if(!vol) return;
   11.31 +
   11.32 +	// make sure the 3D volume texture is up to date
   11.33 +	if(!vol_tex_valid) {
   11.34 +		int xsz, ysz, zsz;
   11.35 +
   11.36 +		if((xsz = vol->num_samples(0)) > 0) {
   11.37 +			ysz = vol->num_samples(1);
   11.38 +			zsz = vol->num_samples(2);
   11.39 +		} else {
   11.40 +			xsz = ysz = zsz = 256;
   11.41 +		}
   11.42 +
   11.43 +		int int_fmt = GLEW_ARB_texture_float ? GL_RGBA16F_ARB : GL_RGBA;
   11.44 +
   11.45 +		glBindTexture(GL_TEXTURE_3D, vol_tex);
   11.46 +		glTexImage3D(GL_TEXTURE_3D, 0, int_fmt, xsz, ysz, zsz, 0, GL_RGBA, GL_FLOAT, 0);
   11.47 +
   11.48 +		float *slice = new float[xsz * ysz * 4];
   11.49 +
   11.50 +		for(int i=0; i<zsz; i++) {
   11.51 +			float z = (float)i / (float)(zsz - 1);
   11.52 +			float *pptr = slice;
   11.53 +
   11.54 +			for(int j=0; j<ysz; j++) {
   11.55 +				float y = (float)j / (float)(ysz - 1);
   11.56 +				for(int k=0; k<xsz; k++) {
   11.57 +					float x = (float)k / (float)(xsz - 1);
   11.58 +
   11.59 +					// value in alpha channel
   11.60 +					pptr[3] = vol->valuef(x, y, z);
   11.61 +					// normal in rgb
   11.62 +					vol->normalf(pptr, x, y, z);
   11.63 +					// shift normal to the [0,1] range in case we don't have tex_float
   11.64 +					pptr[0] = pptr[0] * 0.5 + 0.5;
   11.65 +					pptr[1] = pptr[1] * 0.5 + 0.5;
   11.66 +					pptr[2] = pptr[2] * 0.5 + 0.5;
   11.67 +				}
   11.68 +			}
   11.69 +
   11.70 +			glTexSubImage3D(GL_TEXTURE_3D, 0, 0, 0, i, xsz, ysz, 1, GL_RGBA, GL_FLOAT, slice);
   11.71 +		}
   11.72 +
   11.73 +		delete [] slice;
   11.74 +
   11.75 +		vol_tex_valid = true;
   11.76 +	}
   11.77 +}
   11.78 +
   11.79 +void RendererFast::render() const
   11.80 +{
   11.81 +	if(!vol) return;
   11.82 +
   11.83 +	glClear(GL_COLOR_BUFFER_BIT);
   11.84 +
   11.85 +	glMatrixMode(GL_PROJECTION);
   11.86 +	glPushMatrix();
   11.87 +	glLoadIdentity();
   11.88 +
   11.89 +	glMatrixMode(GL_MODELVIEW);
   11.90 +	glPushMatrix();
   11.91 +	glLoadIdentity();
   11.92 +
   11.93 +	glBindTexture(GL_TEXTURE_3D, vol_tex);
   11.94 +	glBegin(GL_QUADS);
   11.95 +	glTexCoord3f(0, 0, 0); glVertex2f(-1, -1);
   11.96 +	glTexCoord3f(1, 0, 0); glVertex2f(1, -1);
   11.97 +	glTexCoord3f(1, 1, 0); glVertex2f(1, 1);
   11.98 +	glTexCoord3f(0, 1, 0); glVertex2f(-1, 1);
   11.99 +	glEnd();
  11.100 +
  11.101 +	glMatrixMode(GL_PROJECTION);
  11.102 +	glPopMatrix();
  11.103 +	glMatrixMode(GL_MODELVIEW);
  11.104 +	glPopMatrix();
  11.105 +}

    12.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    12.2 +++ b/src/rend_fast.h	Sat Dec 27 02:35:58 2014 +0200
    12.3 @@ -0,0 +1,21 @@
    12.4 +#ifndef REND_FAST_H_
    12.5 +#define REND_FAST_H_
    12.6 +
    12.7 +#include "renderer.h"
    12.8 +
    12.9 +class RendererFast : public Renderer {
   12.10 +private:
   12.11 +	unsigned int vol_tex;
   12.12 +	bool vol_tex_valid;
   12.13 +
   12.14 +public:
   12.15 +	RendererFast();
   12.16 +
   12.17 +	bool init();
   12.18 +	void destroy();
   12.19 +
   12.20 +	void update(unsigned int msec);
   12.21 +	void render() const;
   12.22 +};
   12.23 +
   12.24 +#endif	// REND_FAST_H_

    13.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    13.2 +++ b/src/renderer.cc	Sat Dec 27 02:35:58 2014 +0200
    13.3 @@ -0,0 +1,42 @@
    13.4 +#include "renderer.h"
    13.5 +
    13.6 +Renderer::Renderer()
    13.7 +{
    13.8 +	vol = 0;
    13.9 +	view_width = 512;
   13.10 +	view_height = 512;
   13.11 +}
   13.12 +
   13.13 +Renderer::~Renderer()
   13.14 +{
   13.15 +	destroy();
   13.16 +}
   13.17 +
   13.18 +bool Renderer::init()
   13.19 +{
   13.20 +	return true;
   13.21 +}
   13.22 +
   13.23 +void Renderer::destroy()
   13.24 +{
   13.25 +}
   13.26 +
   13.27 +void Renderer::set_volume(Volume *vol)
   13.28 +{
   13.29 +	this->vol = vol;
   13.30 +}
   13.31 +
   13.32 +Volume *Renderer::get_volume() const
   13.33 +{
   13.34 +	return vol;
   13.35 +}
   13.36 +
   13.37 +void Renderer::reshape(int x, int y)
   13.38 +{
   13.39 +	view_width = x;
   13.40 +	view_height = y;
   13.41 +}
   13.42 +
   13.43 +void Renderer::update(unsigned int msec)
   13.44 +{
   13.45 +}

    14.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    14.2 +++ b/src/renderer.h	Sat Dec 27 02:35:58 2014 +0200
    14.3 @@ -0,0 +1,27 @@
    14.4 +#ifndef RENDERER_H_
    14.5 +#define RENDERER_H_
    14.6 +
    14.7 +#include "volume.h"
    14.8 +
    14.9 +class Renderer {
   14.10 +protected:
   14.11 +	int view_width, view_height;
   14.12 +	Volume *vol;
   14.13 +
   14.14 +public:
   14.15 +	Renderer();
   14.16 +	virtual ~Renderer();
   14.17 +
   14.18 +	virtual bool init();
   14.19 +	virtual void destroy();
   14.20 +
   14.21 +	virtual void set_volume(Volume *vol);
   14.22 +	virtual Volume *get_volume() const;
   14.23 +
   14.24 +	virtual void reshape(int x, int y);
   14.25 +
   14.26 +	virtual void update(unsigned int msec);
   14.27 +	virtual void render() const = 0;
   14.28 +};
   14.29 +
   14.30 +#endif	// RENDERER_H_

    15.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
    15.2 +++ b/src/volume.h	Sat Dec 27 02:35:58 2014 +0200
    15.3 @@ -0,0 +1,37 @@
    15.4 +#ifndef VOLUME_H_
    15.5 +#define VOLUME_H_
    15.6 +
    15.7 +#include "image.h"
    15.8 +
    15.9 +class Volume {
   15.10 +public:
   15.11 +	virtual ~Volume();
   15.12 +
   15.13 +	// returns -1 if the volume is continuously defined
   15.14 +	virtual int num_samples(int dim) const;
   15.15 +
   15.16 +	// central differences offset will be delta / num_samples
   15.17 +	virtual void normalf(float *norm, float x, float y, float z, float delta = 1.0);
   15.18 +	virtual void normali(float *norm, int x, int y, int z);
   15.19 +
   15.20 +	virtual float valuef(float x, float y, float z) const = 0;
   15.21 +	virtual float valuei(int x, int y, int z) const = 0;
   15.22 +};
   15.23 +
   15.24 +class VoxelVolume : public Volume {
   15.25 +protected:
   15.26 +	std::vector<Image> slices;
   15.27 +
   15.28 +public:
   15.29 +	VoxelVolume();
   15.30 +	~VoxelVolume();
   15.31 +
   15.32 +	bool load(const char *fname);
   15.33 +
   15.34 +	int num_samples(int dim) const;
   15.35 +
   15.36 +	float valuef(float x, float y, float z) const;
   15.37 +	float valuei(int x, int y, int z) const;
   15.38 +};
   15.39 +
   15.40 +#endif	// VOLUME_H_