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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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cf5ef5635f
Introducing CUDA buffer pool with generic CUDA memory support. Likewise GL memory, any elements which are able to access CUDA device memory directly can map this CUDA memory without upload/download overhead via the "GST_MAP_CUDA" map flag. Also usual GstMemory map/unmap is also possible with internal staging memory. For staging, CUDA Host allocated memory is used (see CuMemAllocHost API). The memory is allowing system access but has lower overhead during GPU upload/download than normal system memory. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1633>
159 lines
5.5 KiB
C
159 lines
5.5 KiB
C
/* GStreamer
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* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_CUDA_LOADER_H__
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#define __GST_CUDA_LOADER_H__
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#include "stub/cuda.h"
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#include <gst/gst.h>
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G_BEGIN_DECLS
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G_GNUC_INTERNAL
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gboolean gst_cuda_load_library (void);
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/* cuda.h */
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuInit (unsigned int Flags);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGetErrorName (CUresult error,
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const char **pStr);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGetErrorString (CUresult error,
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const char **pStr);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuCtxCreate (CUcontext * pctx,
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unsigned int flags,
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CUdevice dev);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuCtxDestroy (CUcontext ctx);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuCtxPopCurrent (CUcontext * pctx);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuCtxPushCurrent (CUcontext ctx);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGraphicsMapResources (unsigned int count,
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CUgraphicsResource * resources,
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CUstream hStream);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGraphicsUnmapResources (unsigned int count,
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CUgraphicsResource * resources,
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CUstream hStream);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGraphicsSubResourceGetMappedArray (CUarray * pArray,
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CUgraphicsResource resource,
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unsigned int arrayIndex,
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unsigned int mipLevel);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGraphicsResourceGetMappedPointer (CUdeviceptr * pDevPtr,
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size_t * pSize,
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CUgraphicsResource resource);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGraphicsUnregisterResource (CUgraphicsResource resource);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuMemAlloc (CUdeviceptr * dptr,
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unsigned int bytesize);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuMemAllocPitch (CUdeviceptr * dptr,
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size_t * pPitch,
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size_t WidthInBytes,
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size_t Height,
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unsigned int ElementSizeBytes);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuMemAllocHost (void **pp,
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unsigned int bytesize);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuMemcpy2D (const CUDA_MEMCPY2D * pCopy);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuMemcpy2DAsync (const CUDA_MEMCPY2D *pCopy, CUstream hStream);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuMemFree (CUdeviceptr dptr);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuMemFreeHost (void *p);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuStreamCreate (CUstream *phStream,
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unsigned int Flags);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuStreamDestroy (CUstream hStream);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuStreamSynchronize (CUstream hStream);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuDeviceGet (CUdevice * device,
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int ordinal);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuDeviceGetCount (int *count);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuDeviceGetName (char *name,
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int len,
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CUdevice dev);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuDeviceGetAttribute (int *pi,
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CUdevice_attribute attrib,
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CUdevice dev);
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/* cudaGL.h */
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGraphicsGLRegisterImage (CUgraphicsResource * pCudaResource,
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unsigned int image,
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unsigned int target,
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unsigned int Flags);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGraphicsGLRegisterBuffer (CUgraphicsResource * pCudaResource,
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unsigned int buffer,
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unsigned int Flags);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGraphicsResourceSetMapFlags (CUgraphicsResource resource,
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unsigned int flags);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuGLGetDevices (unsigned int * pCudaDeviceCount,
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CUdevice * pCudaDevices,
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unsigned int cudaDeviceCount,
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CUGLDeviceList deviceList);
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G_END_DECLS
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#endif /* __GST_CUDA_LOADER_H__ */
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