d33f66303f
When determining whether to hash the combine constant Cogl checks the arguments to the combine funcs to determine whether the combine constant is used. However is was using the GLenums GL_CONSTANT_COLOR and GL_CONSTANT_ALPHA but these are not valid values for the CoglPipelineCombineSource enum so presumably the constant would never get hashed. This patch makes it use Cogl's enum of COGL_PIPELINE_COMBINE_SOURCE_CONSTANT instead. http://bugzilla.clutter-project.org/show_bug.cgi?id=2516