Chad Versace
f48f9a78da
There exist *two* queryable EGL_RENDER_BUFFER states in EGL: eglQuerySurface(EGL_RENDER_BUFFER) and eglQueryContext(EGL_RENDER_BUFFER). These changes eliminate potentially very fragile code in the upcoming EGL_KHR_mutable_render_buffer implementation. * eglQuerySurface(EGL_RENDER_BUFFER) The implementation of eglQuerySurface(EGL_RENDER_BUFFER) contained abstruse logic which required comprehending the specification complexities of how the two EGL_RENDER_BUFFER states interact. The function sometimes returned _EGLContext::WindowRenderBuffer, sometimes _EGLSurface::RenderBuffer. Why? The function tried to encode the actual logic from the EGL spec. When did the function return which variable? Go study the EGL spec, hope you understand it, then hope Mesa mutated the EGL_RENDER_BUFFER state in all the correct places. Have fun. To simplify eglQuerySurface(EGL_RENDER_BUFFER), and to improve confidence in its correctness, flatten its indirect logic. For pixmap and pbuffer surfaces, simply return a hard-coded literal value, as the spec suggests. For window surfaces, simply return _EGLSurface::RequestedRenderBuffer. Nothing difficult here. * eglQueryContext(EGL_RENDER_BUFFER) The implementation of this suffered from the same issues as eglQuerySurface, and the solution is the same. confidence in its correctness, flatten its indirect logic. For pixmap and pbuffer surfaces, simply return a hard-coded literal value, as the spec suggests. For window surfaces, simply return _EGLSurface::ActiveRenderBuffer. Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================
Source
------
This repository lives at https://gitlab.freedesktop.org/mesa/mesa.
Other repositories are likely forks, and code found there is not supported.
Build status
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Build & install
---------------
You can find more information in our documentation (`docs/install.html
<https://mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.html <https://mesa3d.org/meson.html>`_):
.. code-block:: sh
$ mkdir build
$ cd build
$ meson ..
$ sudo ninja install
Support
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Many Mesa devs hang on IRC; if you're not sure which channel is
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Remember that not everyone is in the same timezone as you, so it might
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To figure out who you're talking to, or which nick to ping for your
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The next best option is to ask your question in an email to the
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Bug reports
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If you think something isn't working properly, please file a bug report
(`docs/bugs.html <https://mesa3d.org/bugs.html>`_).
Contributing
------------
Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.html
<https://mesa3d.org/submittingpatches.html>`_).
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