6 Replies Latest reply on Sep 18, 2013 4:23 AM by himanshu.gautam

    OpenCL kernel not run when passed a Renderbuffer


      When an image2d_t created from an OpenGL Renderbuffer is passed to a kernel, the kernel completes instantly without actually running whenever it is enqueued. For example, in the following:

      __kernel void sample(__write_only image2d_t output) {
              printf("The kernel is being executed.\n");
              uint2 pixel = {get_global_id(0), get_global_id(1)};
              write_imagef(output, as_int2(pixel), (float4)(1, 1, 1, 1));

      no text is ever printed to the screen, and the renderbuffer is not written to. I've attached a testcase.

      I'm running on 64bit linux, with a Core i5 3570, and a Radeon HD 7970.