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r6906 | pogokeen | 2018-05-26 15:11:25 -0700 (Sat, 26 May 2018) | 2 lines

tiles.cpp: fix texcache.cpp:CLEAR_GL_ERRORS() hang on some drivers when trying to create GL textures for tiles when we have no GL context.
This could occur when returning to 2D mode from 3D mode in Mapster32 as videoSet2DMode() does not affect the result of videoGetRenderMode() despite destroying the GL context.
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