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core(ocl): add flag OPENCV_OPENCL_ENABLE_MEM_USE_HOST_PTR

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to control CL_MEM_USE_HOST_PTR usage
This commit is contained in:
Alexander Alekhin 2019-09-24 13:03:29 +03:00
parent 3cf9185159
commit eacadf0e73
1 changed files with 14 additions and 3 deletions
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17
modules/core/src/ocl.cpp
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@ -267,6 +267,9 @@ static const String getBuildExtraOptions()
return param_buildExtraOptions; return param_buildExtraOptions;
} }
static const bool CV_OPENCL_ENABLE_MEM_USE_HOST_PTR = utils::getConfigurationParameterBool("OPENCV_OPENCL_ENABLE_MEM_USE_HOST_PTR", true);
static const size_t CV_OPENCL_ALIGNMENT_MEM_USE_HOST_PTR = utils::getConfigurationParameterSizeT("OPENCV_OPENCL_ALIGNMENT_MEM_USE_HOST_PTR", 4);
#endif // HAVE_OPENCL #endif // HAVE_OPENCL
struct UMat2D struct UMat2D
@ -4675,6 +4678,9 @@ public:
bool allocate(UMatData* u, int accessFlags, UMatUsageFlags usageFlags) const CV_OVERRIDE bool allocate(UMatData* u, int accessFlags, UMatUsageFlags usageFlags) const CV_OVERRIDE
{ {
#ifndef HAVE_OPENCL
return false;
#else
if(!u) if(!u)
return false; return false;
@ -4749,8 +4755,12 @@ public:
#endif #endif
{ {
tempUMatFlags = UMatData::TEMP_UMAT; tempUMatFlags = UMatData::TEMP_UMAT;
if (u->origdata == cv::alignPtr(u->origdata, 4) // There are OpenCL runtime issues for less aligned data if (CV_OPENCL_ENABLE_MEM_USE_HOST_PTR
&& !(u->originalUMatData && u->originalUMatData->handle) // Avoid sharing of host memory between OpenCL buffers // There are OpenCL runtime issues for less aligned data
&& (CV_OPENCL_ALIGNMENT_MEM_USE_HOST_PTR != 0
&& u->origdata == cv::alignPtr(u->origdata, (int)CV_OPENCL_ALIGNMENT_MEM_USE_HOST_PTR))
// Avoid sharing of host memory between OpenCL buffers
&& !(u->originalUMatData && u->originalUMatData->handle)
) )
{ {
handle = clCreateBuffer(ctx_handle, CL_MEM_USE_HOST_PTR|createFlags, handle = clCreateBuffer(ctx_handle, CL_MEM_USE_HOST_PTR|createFlags,
@ -4780,6 +4790,7 @@ public:
u->markHostCopyObsolete(true); u->markHostCopyObsolete(true);
opencl_allocator_stats.onAllocate(u->size); opencl_allocator_stats.onAllocate(u->size);
return true; return true;
#endif // HAVE_OPENCL
} }
/*void sync(UMatData* u) const /*void sync(UMatData* u) const
@ -4908,7 +4919,7 @@ public:
(CL_MAP_READ | CL_MAP_WRITE), (CL_MAP_READ | CL_MAP_WRITE),
0, u->size, 0, 0, 0, &retval); 0, u->size, 0, 0, 0, &retval);
CV_OCL_CHECK_RESULT(retval, cv::format("clEnqueueMapBuffer(handle=%p, sz=%lld) => %p", (void*)u->handle, (long long int)u->size, data).c_str()); CV_OCL_CHECK_RESULT(retval, cv::format("clEnqueueMapBuffer(handle=%p, sz=%lld) => %p", (void*)u->handle, (long long int)u->size, data).c_str());
CV_Assert(u->origdata == data); CV_Assert(u->origdata == data && "Details: https://github.com/opencv/opencv/issues/6293");
if (u->originalUMatData) if (u->originalUMatData)
{ {
CV_Assert(u->originalUMatData->data == data); CV_Assert(u->originalUMatData->data == data);