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Clarify (lack of) support for desktop OpenGL on the Raspberry Pi

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Gabriel Jacobo 2014-10-21 11:27:06 -03:00
parent 5f193f0c60
commit 96fd9cefc8
1 changed files with 17 additions and 0 deletions
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docs/README-raspberrypi.md
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@ -150,6 +150,23 @@ this determining the CAPS LOCK behavior:
sudo dpkg-reconfigure locales
================================================================================
OpenGL problems
================================================================================
If you have desktop OpenGL headers installed at build time in your RPi or cross
compilation environment, support for it will be built in. However, the chipset
does not actually have support for it, which causes issues in certain SDL apps
since the presence of OpenGL support supersedes the ES/ES2 variants.
The workaround is to disable OpenGL at configuration time:
./configure --disable-video-opengl
Or if the application uses the Render functions, you can use the SDL_RENDER_DRIVER
environment variable:
export SDL_RENDER_DRIVER=opengles2
================================================================================
Notes
================================================================================