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Reference Implementations of P0267, the proposed 2D graphics API for ISO C++

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P0267 Reference Implementation

Please read the LICENSE before cloning or forking the code as there is important information there!

Please see the wiki for links to forks which provide alternate implementations!

Update as of 2017-03-27: Lastly, this is the repository for the reference implementation of P0267. There is also a P0267 repository. If you have questions, concerns, or other issues with the P0267 API or the P0267 document itself, please file an issue on the P0267 repository. In the past, this has been the catch-all place for issues, but from now on I'd like to limit issues here to those concerning this reference implementation.

Overview

This is a reference implementations of P0267: A Proposal to Add 2D Rendering and Display to C++. That link will always take you to the most current revision of the paper. You can also go to WG21 Papers and find the most recent version yourself in case you don't like short links like that.

Requirements

For Windows platforms, it currently requires Visual Studio 2017 (the free Community edition should suffice) and Windows 7 or newer. It also requires vcpkg for installing dependencies - this is described more fully here: Dependency installation instructions.txt.

For GNU/Linux platforms, it currently requires a non-ancient version of GNU autotools, cairo (>= 1.12.16), GraphicsMagick (autotools will tell you about any missing dependencies), and either GCC 7+ or Clang 5.0+.

For OS X, I have tested it on High Sierra using X11 and MacPorts (with the relevant dependencies).

Feedback

If you have found a bug in the reference implementation or have a suggestion for improving P0267 please read the following. Note that any contributions must comply with the ISO patent and copyright policy, an overview of which is available in the ISO document Participating in International Standardization.

The master branch is intended to reflect the most recent revision of P0267 but is not guaranteed to be current or fully implemented (especially around the time that a new revision of P0267 has been published).

Licenses and Contributions (Important!)

LICENSE CHANGE: As of 2017-01-12 01:00.00 UTC, this software is licensed under the terms of the Boost Software License - Version 1.0. This does not affect any fork, clone, or download of this software, collectively a "Copy", made prior to the above-specified date and time provided that such Copy is not updated to include any changes made at or after the above-specified date and time. Any such update shall be deemed an acceptance of a license of this software solely under the terms of the Boost Software License - Version 1.0.

Any code that you offer as a pull request must be your own work. If your employer or institution has a moonlighting policy, the act of offering a pull request shall be considered a declaration that you complied with the terms of that policy and are free to make the contribution or that your employer or institution has expressly waived any IP rights it or they might have had in your contribution thus freeing you to make the contribution.

If your contribution makes use of third party libraries it must comply with the licensing terms of those libraries. If the library is licensed under multiple licenses you must indicate which license your contribution is using ("whichever" is not acceptable). The terms of those licenses must be compatible with the terms of the licenses of any existing code. Code licensed under any version of the GPL will not be considered. (Note: LGPL code will be considered, though licenses that give more freedom to other developers are preferred.)

Any contribution shall be deemed to be made pursuant to the terms of the Boost Software License - Version 1.0, without regard to any attempt, whether by statement, inclusion of a license file, inclusion of license terms within any file, or any other method, to impose any other license.

If your code is a derivative work of the reference implementation it must be licensed under the terms of the Boost Software License - Version 1.0 unless you obtain an express, written waiver from the original author of the reference implementation, Michael B. McLaughlin. (Literally written, as in fixed on paper, signed, and physically mailed to you), except as provided above.

If you fail to comply with the terms of any employer or institutional policies, the terms of any licenses, or if you infringe upon any patents, violate any trade secrets, violate any laws or regulations, or, by any act or omission, cause any legal action to be brought against the authors of P0267, its previous versions, the ISO C++ committee (ISO/IEC JTC1/SC22/WG21) or any of its members individually, or any participants in the ISO C++ standardization process, you agree to pay all legal expenses of said persons and/or entities and to indemnify every one of them in full in the event that any legally binding judgment is rendered against them.

Intellectual property rights are important. You may not agree with every IP law and regulation out there (I certainly have some suggestions for reforming them), but we cannot ignore them and hope nobody notices. Many of us do things like develop software, do technical writing, or work for companies where that is a big part of what pays the bills. In other words, many people's livelihoods (including most, if not all, of ours) depend on laws governing intellectual property. So I apologize for all the scary language above. But until I go a decade without seeing statements like "I haven't decided on a license yet but here's some code I wrote", I'll continue to write scary statements in hopes of scaring people into taking intellectual property and the terms of the licenses under which such property is offered more seriously. And also because I really do mean them. I don't want to be facing $50,000+ in lawyers bills plus some large monetary judgment because someone passed off somebody else's code as their own or didn't follow their employer's policies or whatever. I don't expect that anyone else would want to be facing a situation such as that either.

I encourage anyone with intellectual property disputes to try to work them out reasonably first. Regardless, if you have any legal questions or concerns, including but not limited to intellectual property matters, you should contact a knowledgeable attorney.

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