https://bugs.freedesktop.org/show_bug.cgi?id=32271
Ian Romanick idr@freedesktop.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Platform|Other |All CC| |idr@freedesktop.org
--- Comment #1 from Ian Romanick idr@freedesktop.org 2010-12-09 11:24:05 PST --- It sounds like the application has a shader that uses dFdx(), dFdy(), or fwidth() GLSL functions. These functions emit the DDX and / or DDY instructions. Older hardware, such as r300 and i915, do not support these instructions. The best fix is probably to add code to lower_instructions to convert the GLSL IR for these instructions to constants of 0. This should also emit a warning to the shader's info log.