docs: document Intel, R300 env vars
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@ -51,5 +51,24 @@ See the <A HREF="xlibdriver.html">Xlib software driver page</A> for details.
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</ul>
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<p>
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These environment variables are for the Intel i945/i965 drivers:
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</p>
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<ul>
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<li>INTEL_STRICT_CONFORMANCE - if set to 1, enable sw fallbacks to improve
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OpenGL conformance. If set to 2, always use software rendering.
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<li>INTEL_NO_BLIT - if set, disable hardware-accelerated glBitmap,
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glCopyPixels, glDrawPixels.
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</ul>
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<p>
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These environment variables are for the Radeon R300 driver:
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</p>
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<ul>
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<li>R300_NO_TCL - if set, disable hardware-accelerated Transform/Clip/Lighting.
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</ul>
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</BODY>
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</HTML>
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