topic Problems with CL / GL interop in OpenCL* for CPU

Problems with CL / GL interop

Alec_W_ — Fri, 25 Jul 2014 02:37:59 GMT

I am using the 2014 version of Intel SDK for OpenCL Apps.

I am developing an application that shares a buffer between openGL and openCL. When I run my application from the debugger (VS2013), it fails in clCreateContext() -- i get the error code CL_INVALID_PLATFORM. If I run outside the debugger, then the call to clCreateContext() works fine.

I observe the exact same problem when I run the Intel sample application: I downloaded intel_ocl_ogl_interop.zip, I build it, and I get exactly the same issue: fails in the debugger, works when I start the app from the command line.

I am running on a Core i7-3667 CPU with HD4000 GPU. My OS is Windows 8.1.

Any suggested work-arounds?

-Alec

Hi Alec,

Yuri_K_Intel — Fri, 25 Jul 2014 07:07:21 GMT

Hi Alec, Thank you for reporting this issue. It is reproducible on our side and I will create a ticket for it. Meanwhile, as a workaround, you may disable API debugger in 'TOOLS'->'Code Builder - Options'->'API Debugger Tab'->untick 'Enable OpenCL API Debugger'. Thanks, Yuri

Alec_W_ — Sat, 26 Jul 2014 00:18:09 GMT

Thanks, that fixed my problem.

-Alec