diff options
Diffstat (limited to 'cuda/3d/mem3d.cu')
| -rw-r--r-- | cuda/3d/mem3d.cu | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/cuda/3d/mem3d.cu b/cuda/3d/mem3d.cu index 2b26fe1..97be8a4 100644 --- a/cuda/3d/mem3d.cu +++ b/cuda/3d/mem3d.cu @@ -118,6 +118,13 @@ MemHandle3D allocateGPUMemory(unsigned int x, unsigned int y, unsigned int z, Me return ret; } +bool zeroGPUMemory(MemHandle3D handle, unsigned int x, unsigned int y, unsigned int z) +{ + SMemHandle3D_internal& hnd = *handle.d.get(); + cudaError_t err = cudaMemset3D(hnd.ptr, 0, make_cudaExtent(sizeof(float)*x, y, z)); + return err == cudaSuccess; +} + bool freeGPUMemory(MemHandle3D handle) { size_t free = availableGPUMemory(); @@ -307,6 +314,23 @@ bool FDK(const astra::CProjectionGeometry3D* pProjGeom, MemHandle3D projData, co } +MemHandle3D wrapHandle(float *D_ptr, unsigned int x, unsigned int y, unsigned int z, unsigned int pitch) +{ + cudaPitchedPtr ptr; + ptr.ptr = D_ptr; + ptr.xsize = sizeof(float) * x; + ptr.pitch = sizeof(float) * pitch; + ptr.ysize = y; + + SMemHandle3D_internal h; + h.ptr = ptr; + + MemHandle3D hnd; + hnd.d = boost::shared_ptr<SMemHandle3D_internal>(new SMemHandle3D_internal); + *hnd.d = h; + + return hnd; +} |