arb_query_buffer_object expects type conversion on GPU reads
Submitted by Chris Wilson @ickle
Assigned to Ian Romanick
Description
when reading a 64bit value through glGetQueryObjectiv() or glGetQueryObjectuiv() the result is truncated. This means that we can not use the result as an accurate value unless the full glGetQueryObjectui64v() is used - i.e. have_cpu_result should only be true when using GL_UNSIGNED_INT64_ARB datatypes.
Version: git