EGL headless mode #1608
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EGL headless mode #1608
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| @@ -656,8 +732,12 @@ GLFWbool _glfwCreateContextEGL(_GLFWwindow* window, | |||
| _GLFW_OPENGL_LIBRARY, | |||
| #elif defined(_GLFW_WIN32) | |||
| #elif defined(_GLFW_COCOA) | |||
| #else | |||
| #if defined(_GLFW_EGLHEADLESS) | |||
| "libOpenGL.so.0", | |||
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It's not clear why this is necessary on my system. It could be glvnd or else my system is misconfigured somehow.
chaiyujin
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Sep 1, 2020
copy from glfw#1608, which is not merged at this moment
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Having this would be fantastic! Especially for scientific applications rendering on a server. |
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This would also be useful for automated testing |
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Oh, this would be nice :( |
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Inspired by #786 this is a PR to support OSMesa-style headless rendering with EGL.
If you want to run an OpenGL program on a linux server you can run an X server with either hardware or software rendering. Configuring software rendering isn't too bad but hardware rendering can be a bit annoying and in either case you need to manage an X server process.
To run without an X server, you can use osmesa or EGL. OSMesa headless can be used by compiling GLFW with
-DGLFW_USE_OSMESA=ON, but only supports software rendering. For hardware rendering, EGL can be used, but the existing code doesn't seem to quite support this setup.This PR is a proof of concept for this mode (it's just hacked into
egl_context.(h|c)) but if there is interest I could clean it up.