Robert Bragg c6a0427c69 pick: Use Cogl API not GL API to disable dithering
When picking we need to disable dithering to be sure that the hardware
will not modify the colors we use as actor identifiers. Clutter was
manually calling glEnable/Disable GL_DITHER to handle this, but that was
a layering violation since Cogl is intended to handle all interactions
with OpenGL. Since we are now striving for GL vs GLES to be a runtime
choice we need to remove this last direct usage of GL from Clutter so it
doesn't have to be linked with GL at build time.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-07-14 13:54:16 +01:00
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