Flags to map or unmap a resource

Create a CUDA context for interoperability with OpenGL.

Parameters

pCtx

- Returned CUDA context

Flags

- Options for CUDA context creation

device

- Device on which to create the context

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_OUT_OF_MEMORY

Deprecated

This function is deprecated as of Cuda 5.0.

Description

This function is deprecated and should no longer be used. It is no longer necessary to associate a CUDA context with an OpenGL context in order to achieve maximum interoperability performance.

See also:

cuCtxCreate, cuGLInit, cuGLMapBufferObject, cuGLRegisterBufferObject, cuGLUnmapBufferObject, cuGLUnregisterBufferObject, cuGLMapBufferObjectAsync, cuGLUnmapBufferObjectAsync, cuGLSetBufferObjectMapFlags, cuWGLGetDevice

Initializes OpenGL interoperability.

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_UNKNOWN

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Initializes OpenGL interoperability. This function is deprecated and calling it is no longer required. It may fail if the needed OpenGL driver facilities are not available.

See also:

cuGLMapBufferObject, cuGLRegisterBufferObject, cuGLUnmapBufferObject, cuGLUnregisterBufferObject, cuGLMapBufferObjectAsync, cuGLUnmapBufferObjectAsync, cuGLSetBufferObjectMapFlags, cuWGLGetDevice

Maps an OpenGL buffer object.

Parameters

dptr

- Returned mapped base pointer

size

- Returned size of mapping

buffer

- The name of the buffer object to map

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_MAP_FAILED

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Maps the buffer object specified by buffer into the address space of the current CUDA context and returns in *dptr and *size the base pointer and size of the resulting mapping.

There must be a valid OpenGL context bound to the current thread when this function is called. This must be the same context, or a member of the same shareGroup, as the context that was bound when the buffer was registered.

All streams in the current CUDA context are synchronized with the current GL context.

See also:

cuGraphicsMapResources

Maps an OpenGL buffer object.

Parameters

dptr

- Returned mapped base pointer

size

- Returned size of mapping

buffer

- The name of the buffer object to map

hStream

- Stream to synchronize

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_MAP_FAILED

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Maps the buffer object specified by buffer into the address space of the current CUDA context and returns in *dptr and *size the base pointer and size of the resulting mapping.

There must be a valid OpenGL context bound to the current thread when this function is called. This must be the same context, or a member of the same shareGroup, as the context that was bound when the buffer was registered.

Stream hStream in the current CUDA context is synchronized with the current GL context.

See also:

cuGraphicsMapResources

Registers an OpenGL buffer object.

Parameters

buffer

- The name of the buffer object to register.

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_ALREADY_MAPPED

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Registers the buffer object specified by buffer for access by CUDA. This function must be called before CUDA can map the buffer object. There must be a valid OpenGL context bound to the current thread when this function is called, and the buffer name is resolved by that context.

See also:

cuGraphicsGLRegisterBuffer

Set the map flags for an OpenGL buffer object.

Parameters

buffer

- Buffer object to unmap

Flags

- Map flags

Returns

CUDA_SUCCESS, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_ALREADY_MAPPED, CUDA_ERROR_INVALID_CONTEXT,

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Sets the map flags for the buffer object specified by buffer.

Changes to Flags will take effect the next time buffer is mapped. The Flags argument may be any of the following:

• CU_GL_MAP_RESOURCE_FLAGS_NONE: Specifies no hints about how this resource will be used. It is therefore assumed that this resource will be read from and written to by CUDA kernels. This is the default value.

• CU_GL_MAP_RESOURCE_FLAGS_READ_ONLY: Specifies that CUDA kernels which access this resource will not write to this resource.

• CU_GL_MAP_RESOURCE_FLAGS_WRITE_DISCARD: Specifies that CUDA kernels which access this resource will not read from this resource and will write over the entire contents of the resource, so none of the data previously stored in the resource will be preserved.

If buffer has not been registered for use with CUDA, then CUDA_ERROR_INVALID_HANDLE is returned. If buffer is presently mapped for access by CUDA, then CUDA_ERROR_ALREADY_MAPPED is returned.

There must be a valid OpenGL context bound to the current thread when this function is called. This must be the same context, or a member of the same shareGroup, as the context that was bound when the buffer was registered.

See also:

cuGraphicsResourceSetMapFlags

Unmaps an OpenGL buffer object.

Parameters

buffer

- Buffer object to unmap

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Unmaps the buffer object specified by buffer for access by CUDA.

There must be a valid OpenGL context bound to the current thread when this function is called. This must be the same context, or a member of the same shareGroup, as the context that was bound when the buffer was registered.

All streams in the current CUDA context are synchronized with the current GL context.

See also:

cuGraphicsUnmapResources

Unmaps an OpenGL buffer object.

Parameters

buffer

- Name of the buffer object to unmap

hStream

- Stream to synchronize

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Unmaps the buffer object specified by buffer for access by CUDA.

There must be a valid OpenGL context bound to the current thread when this function is called. This must be the same context, or a member of the same shareGroup, as the context that was bound when the buffer was registered.

Stream hStream in the current CUDA context is synchronized with the current GL context.

See also:

cuGraphicsUnmapResources

Unregister an OpenGL buffer object.

Parameters

buffer

- Name of the buffer object to unregister

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Unregisters the buffer object specified by buffer. This releases any resources associated with the registered buffer. After this call, the buffer may no longer be mapped for access by CUDA.

There must be a valid OpenGL context bound to the current thread when this function is called. This must be the same context, or a member of the same shareGroup, as the context that was bound when the buffer was registered.

See also:

cuGraphicsUnregisterResource