NAME

       OpenGL Interoperability [DEPRECATED] -

   Enumerations
       enum cudaGLMapFlags { cudaGLMapFlagsNone =  0, cudaGLMapFlagsReadOnly =  1, cudaGLMapFlagsWriteDiscard =
           2 }

   Functions
       cudaError_t cudaGLMapBufferObject (void **devPtr, GLuint bufObj)
           Maps a buffer object for access by CUDA.
       cudaError_t cudaGLMapBufferObjectAsync (void **devPtr, GLuint bufObj, cudaStream_t stream)
           Maps a buffer object for access by CUDA.
       cudaError_t cudaGLRegisterBufferObject (GLuint bufObj)
           Registers a buffer object for access by CUDA.
       cudaError_t cudaGLSetBufferObjectMapFlags (GLuint bufObj, unsigned int flags)
           Set usage flags for mapping an OpenGL buffer.
       cudaError_t cudaGLSetGLDevice (int device)
           Sets a CUDA device to use OpenGL interoperability.
       cudaError_t cudaGLUnmapBufferObject (GLuint bufObj)
           Unmaps a buffer object for access by CUDA.
       cudaError_t cudaGLUnmapBufferObjectAsync (GLuint bufObj, cudaStream_t stream)
           Unmaps a buffer object for access by CUDA.
       cudaError_t cudaGLUnregisterBufferObject (GLuint bufObj)
           Unregisters a buffer object for access by CUDA.

Detailed Description

       This section describes deprecated OpenGL interoperability functionality.

Enumeration Type Documentation

   enum cudaGLMapFlags
       CUDA GL Map Flags

       Enumerator:

       cudaGLMapFlagsNone
              Default; Assume resource can be read/written

       cudaGLMapFlagsReadOnly
              CUDA kernels will not write to this resource

       cudaGLMapFlagsWriteDiscard
              CUDA kernels will only write to and will not read from this resource

Function Documentation

   cudaError_t cudaGLMapBufferObject (void ** devPtr, GLuint bufObj)
       Deprecated
           This function is deprecated as of CUDA 3.0.

       Maps the buffer object of ID bufObj into the address space of CUDA and returns in *devPtr the base
       pointer of the resulting mapping. The buffer must have previously been registered by calling
       cudaGLRegisterBufferObject(). While a buffer is mapped by CUDA, any OpenGL operation which references the
       buffer will result in undefined behavior. The OpenGL context used to create the buffer, or another
       context from the same share group, must be bound to the current thread when this is called.

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

       Parameters:
           devPtr - Returned device pointer to CUDA object
           bufObj - Buffer object ID to map

       Returns:
           cudaSuccess, cudaErrorMapBufferObjectFailed

       Note:
           Note that this function may also return error codes from previous, asynchronous launches.

       See also:
           cudaGraphicsMapResources

   cudaError_t cudaGLMapBufferObjectAsync (void ** devPtr, GLuint bufObj, cudaStream_t stream)
       Deprecated
           This function is deprecated as of CUDA 3.0.

       Maps the buffer object of ID bufObj into the address space of CUDA and returns in *devPtr the base
       pointer of the resulting mapping. The buffer must have previously been registered by calling
       cudaGLRegisterBufferObject(). While a buffer is mapped by CUDA, any OpenGL operation which references the
       buffer will result in undefined behavior. The OpenGL context used to create the buffer, or another
       context from the same share group, must be bound to the current thread when this is called.

       Stream /p stream is synchronized with the current GL context.

       Parameters:
           devPtr - Returned device pointer to CUDA object
           bufObj - Buffer object ID to map
           stream - Stream to synchronize

       Returns:
           cudaSuccess, cudaErrorMapBufferObjectFailed

       Note:
           Note that this function may also return error codes from previous, asynchronous launches.

       See also:
           cudaGraphicsMapResources

   cudaError_t cudaGLRegisterBufferObject (GLuint bufObj)
       Deprecated
           This function is deprecated as of CUDA 3.0.

       Registers the buffer object of ID bufObj for access by CUDA. This function must be called before CUDA can
       map the buffer object. The OpenGL context used to create the buffer, or another context from the same
       share group, must be bound to the current thread when this is called.

       Parameters:
           bufObj - Buffer object ID to register

       Returns:
           cudaSuccess, cudaErrorInitializationError

       Note:
           Note that this function may also return error codes from previous, asynchronous launches.

       See also:
           cudaGraphicsGLRegisterBuffer

   cudaError_t cudaGLSetBufferObjectMapFlags (GLuint bufObj, unsigned int flags)
       Deprecated
           This function is deprecated as of CUDA 3.0.

       Set flags for mapping the OpenGL buffer bufObj

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

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

       • cudaGLMapFlagsReadOnly: Specifies that CUDA kernels which access this buffer will not write to the
         buffer.

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

       If bufObj has not been registered for use with CUDA, then cudaErrorInvalidResourceHandle is returned. If
       bufObj is presently mapped for access by CUDA, then cudaErrorUnknown is returned.

       Parameters:
           bufObj - Registered buffer object to set flags for
           flags - Parameters for buffer mapping

       Returns:
           cudaSuccess, cudaErrorInvalidValue, cudaErrorInvalidResourceHandle, cudaErrorUnknown

       Note:
           Note that this function may also return error codes from previous, asynchronous launches.

       See also:
           cudaGraphicsResourceSetMapFlags

   cudaError_t cudaGLSetGLDevice (int device)
       Deprecated
           This function is deprecated as of CUDA 5.0.

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

       Parameters:
           device - Device to use for OpenGL interoperability

       Returns:
           cudaSuccess, cudaErrorInvalidDevice, cudaErrorSetOnActiveProcess

       Note:
           Note that this function may also return error codes from previous, asynchronous launches.

       See also:
           cudaGraphicsGLRegisterBuffer, cudaGraphicsGLRegisterImage

   cudaError_t cudaGLUnmapBufferObject (GLuint bufObj)
       Deprecated
           This function is deprecated as of CUDA 3.0.

       Unmaps the buffer object of ID bufObj for access by CUDA. When a buffer is unmapped, the base address
       returned by cudaGLMapBufferObject() is invalid and subsequent references to the address result in
       undefined behavior. The OpenGL context used to create the buffer, or another context from the same share
       group, must be bound to the current thread when this is called.

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

       Parameters:
           bufObj - Buffer object to unmap

       Returns:
           cudaSuccess, cudaErrorUnmapBufferObjectFailed

       Note:
           Note that this function may also return error codes from previous, asynchronous launches.

       See also:
           cudaGraphicsUnmapResources

   cudaError_t cudaGLUnmapBufferObjectAsync (GLuint bufObj, cudaStream_t stream)
       Deprecated
           This function is deprecated as of CUDA 3.0.

       Unmaps the buffer object of ID bufObj for access by CUDA. When a buffer is unmapped, the base address
       returned by cudaGLMapBufferObject() is invalid and subsequent references to the address result in
       undefined behavior. The OpenGL context used to create the buffer, or another context from the same share
       group, must be bound to the current thread when this is called.

       Stream /p stream is synchronized with the current GL context.

       Parameters:
           bufObj - Buffer object to unmap
           stream - Stream to synchronize

       Returns:
           cudaSuccess, cudaErrorUnmapBufferObjectFailed

       Note:
           Note that this function may also return error codes from previous, asynchronous launches.

       See also:
           cudaGraphicsUnmapResources

   cudaError_t cudaGLUnregisterBufferObject (GLuint bufObj)
       Deprecated
           This function is deprecated as of CUDA 3.0.

       Unregisters the buffer object of ID bufObj for access by CUDA and releases any CUDA resources associated
       with the buffer. Once a buffer is unregistered, it may no longer be mapped by CUDA. The GL context used
       to create the buffer, or another context from the same share group, must be bound to the current thread
       when this is called.

       Parameters:
           bufObj - Buffer object to unregister

       Returns:
           cudaSuccess

       Note:
           Note that this function may also return error codes from previous, asynchronous launches.

       See also:
           cudaGraphicsUnregisterResource

Author

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