go-gl/cl

OpenCL bindings for Go

cl's Issues

Pointer to pointer values as cgo arguments are no longer allowed in Go 1.6

Any calls to functions which calls cgo with a double pointer, (for example CreateProgramWithSource) will cause a runtime error:
panic: runtime error: cgo argument has Go pointer to Go pointer
In Go 1.6 as a result of the changes to cgo: https://tip.golang.org/doc/go1.6#cgo

I noticed you guys are already aware of this for OpenGL bindings: go-gl/gl#31

Use idiomatic style for Go comments.

Hi,

I see this package has a lot of comments without a space after the two forward slashes, e.g.:

//Create Command Queue

Idiomatic Go style for comments is to include a space after the two forward slashes, so it should be:

// Create Command Queue

See https://golang.org/doc/effective_go.html#commentary and https://github.com/golang/go/wiki/CodeReviewComments#comment-sentences.

No space is used for commented out code and non-compiler directives, for example:

//go:generate foo

cl.GetPlatformIDs panic: runtime error: cgo argument has Go pointer to Go pointer

Go1.8
I can get the dreaded 'panic: runtime error: cgo argument has Go pointer to Go pointer' in
cl.GetPlatformIDs() when i make the cl.PlatformID argument a non-local variable. Same for cl.DeviceId in cl.GetDeviceIDs()...
Things seem to work fine if those variables are local, like in the provided sample code. It is a mystery to me, because this panic comes and goes, depending on code changes i make, and thus maybe the
actual addresses where the cl.PlatformID and cl.DeviceId are stored?

unknown field 'buffer'

With the new OpenCL cl.h file there is a change where an anonymous enum is giving troubles:

github.com/go-gl/cl/v1.2/cl

../../../../go/extern/src/github.com/go-gl/cl/v1.2/cl/package.go:726: unknown field 'buffer' in struct literal of type C.struct__cl_image_desc

I don't know how to properly solve this other than (temporarily) using the v1.2 cl.h header. Maybe there is a way to let cgo handle that enum?

Linking on Linux?

When building, /usr/bin/ld: cannot find -lCL.

$ locate libCL # No results
$ locate libOpenCL                                             
/opt/intel/opencl/libOpenCL.so
/opt/intel/opencl/libOpenCL.so.1
/opt/intel/opencl-runtime/lib64/libOpenCL.so
/opt/intel/opencl-runtime/lib64/libOpenCL.so.1
/opt/intel/opencl-runtime/lib64/libOpenCL.so.2.0
/usr/lib/libOpenCL.so
/usr/lib/libOpenCL.so.1
/usr/lib/libOpenCL.so.1.0.0