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Add OpenCL version 1.2 query into ocl::Context::supportsFeature().

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Add backwards portability for OpenCL 1.1 when OpenCV executables
are compiled with OpenCL 1.2 profile support.
This commit is contained in:
peng xiao 2013-05-02 14:44:59 +08:00
parent 48a8aefd6b
commit 355bc691fc
3 changed files with 37 additions and 25 deletions
modules/ocl
include/opencv2/ocl
ocl.hpp
src
initialization.cppmcwutil.cpp

2
modules/ocl/include/opencv2/ocl/ocl.hpp

@ -155,7 +155,7 @@ namespace cv
static Context* getContext();
static void setContext(Info &oclinfo);
enum {CL_DOUBLE, CL_UNIFIED_MEM};
enum {CL_DOUBLE, CL_UNIFIED_MEM, CL_VER_1_2};
bool supportsFeature(int ftype);
size_t computeUnits();
void* oclContext();

6
modules/ocl/src/initialization.cpp

@ -130,6 +130,7 @@ namespace cv
cl_platform_id oclplatform;
std::vector<cl_device_id> devices;
std::vector<std::string> devName;
std::string clVersion;
cl_context oclcontext;
cl_command_queue clCmdQueue;
@ -304,6 +305,7 @@ namespace cv
char deviceName[256];
int devcienums = 0;
char clVersion[256];
for (unsigned i = 0; i < numPlatforms; ++i)
{
cl_uint numsdev;
@ -319,6 +321,8 @@ namespace cv
Info ocltmpinfo;
ocltmpinfo.impl->oclplatform = platforms[i];
openCLSafeCall(clGetPlatformInfo(platforms[i], CL_PLATFORM_VERSION, sizeof(clVersion), clVersion, NULL));
ocltmpinfo.impl->clVersion = clVersion;
for(unsigned j = 0; j < numsdev; ++j)
{
ocltmpinfo.impl->devices.push_back(devices[j]);
@ -997,6 +1001,8 @@ namespace cv
return impl->double_support == 1;
case CL_UNIFIED_MEM:
return impl->unified_memory == 1;
case CL_VER_1_2:
return impl->clVersion.find("OpenCL 1.2") != string::npos;
default:
return false;
}

54
modules/ocl/src/mcwutil.cpp

@ -124,7 +124,7 @@ namespace cv
build_options, finish_mode);
}
cl_mem bindTexture(const oclMat &mat)
cl_mem bindTexture(const oclMat &mat)
{
cl_mem texture;
cl_image_format format;
@ -162,30 +162,37 @@ namespace cv
CV_Error(-1, "Image forma is not supported");
break;
}
if(Context::getContext()->supportsFeature(Context::CL_VER_1_2))
{
#if CL_VERSION_1_2
cl_image_desc desc;
desc.image_type = CL_MEM_OBJECT_IMAGE2D;
desc.image_width = mat.cols;
desc.image_height = mat.rows;
desc.image_depth = 0;
desc.image_array_size = 1;
desc.image_row_pitch = 0;
desc.image_slice_pitch = 0;
desc.buffer = NULL;
desc.num_mip_levels = 0;
desc.num_samples = 0;
texture = clCreateImage((cl_context)mat.clCxt->oclContext(), CL_MEM_READ_WRITE, &format, &desc, NULL, &err);
cl_image_desc desc;
desc.image_type = CL_MEM_OBJECT_IMAGE2D;
desc.image_width = mat.cols;
desc.image_height = mat.rows;
desc.image_depth = 0;
desc.image_array_size = 1;
desc.image_row_pitch = 0;
desc.image_slice_pitch = 0;
desc.buffer = NULL;
desc.num_mip_levels = 0;
desc.num_samples = 0;
texture = clCreateImage((cl_context)mat.clCxt->oclContext(), CL_MEM_READ_WRITE, &format, &desc, NULL, &err);
#else
texture = clCreateImage2D(
(cl_context)mat.clCxt->oclContext(),
CL_MEM_READ_WRITE,
&format,
mat.cols,
mat.rows,
0,
NULL,
&err);
CV_Error(CV_StsBadFunc, "Non-deprecated image creation API call is not supported.");
#endif
}
else
{
texture = clCreateImage2D(
(cl_context)mat.clCxt->oclContext(),
CL_MEM_READ_WRITE,
&format,
mat.cols,
mat.rows,
0,
NULL,
&err);
}
size_t origin[] = { 0, 0, 0 };
size_t region[] = { mat.cols, mat.rows, 1 };
@ -198,7 +205,7 @@ namespace cv
clEnqueueCopyBufferRect((cl_command_queue)mat.clCxt->oclCommandQueue(), (cl_mem)mat.data, devData, origin, origin,
regin, mat.step, 0, mat.cols * mat.elemSize(), 0, 0, NULL, NULL);
clFlush((cl_command_queue)mat.clCxt->oclCommandQueue());
}
}
else
{
devData = (cl_mem)mat.data;
@ -214,7 +221,6 @@ namespace cv
openCLSafeCall(err);
return texture;
}
void releaseTexture(cl_mem& texture)
{
openCLFree(texture);