1. 11 Jul, 2018 2 commits
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    • Yongjia Zhang's avatar
      This is a better way to accomplish the box-blur cl operation by using ocl's · e7e640f3
      Yongjia Zhang authored
      local memory from the opencv source code. It use the local shared memory to
      reduce global memory access, which significantly reduces the kernel's processing
      time by 70 percent compared to the original one. Because of the barriers and
      local worksize limitation, processing with a radius larger than 110 becomes
      slower than original algorithm, so I keep the original kernels in order to deal
      with box-blur with radius larger than 110.
      All the tests are based on Intel Beginet and Intel IvyBridge CPU and GPU.
      
      v2:add kernel attribute to restrict the local size to (256,1,1).
      
      Signed-off-by: Yongjia Zhang<yongjia.zhang@intel.com>
      e7e640f3
  10. 01 Nov, 2013 1 commit
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  15. 05 Jun, 2013 1 commit
    • Victor Oliveira's avatar
      Simplying opencl buffer iterators · 33bb648b
      Victor Oliveira authored
      opencl buffer iterators now iterate over just
      one region at a time, instead of possibly many.
      
      This change is because the overhead of many
      clFinish calls is not that great and it was
      already happening in many places because of the
      gpu caching code.
      33bb648b
  16. 14 May, 2013 1 commit
  17. 14 Jan, 2013 1 commit
    • Victor Oliveira's avatar
      opencl: many changes · a3b19bc8
      Victor Oliveira authored
      - splitting kernels from remaining filters
      - removing unnecessary opencl barriers
      - stop using cl_int to report GEGL errors (just opencl ones)
      a3b19bc8
  18. 11 Jan, 2013 1 commit
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