File: IsGLES.m

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psychtoolbox-3 3.0.19.14.dfsg1-1
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function rc = IsGLES
% Returns 1 if active rendering api is OpenGL-ES,
% 0 otherwise.

val = getenv('PSYCH_USE_GFX_BACKEND');
rc = (length(val) >= 4) && strcmp(val(1:4), 'gles');