Class APPLEGLSharing



  • public class APPLEGLSharing
    extends java.lang.Object
    Native bindings to the APPLE_gl_sharing extension.
    • Field Detail

      • CL_CONTEXT_PROPERTY_USE_CGL_SHAREGROUP_APPLE

        public static final int CL_CONTEXT_PROPERTY_USE_CGL_SHAREGROUP_APPLE
        This enumerated value can be specified as part of the properties argument passed to CreateContext to allow OpenCL compliant devices in an existing CGL share group to be used as the devices in the newly created CL context. GL objects that were allocated in the specified CGL share group can now be shared between CL and GL.
        See Also:
        Constant Field Values
      • CL_CGL_DEVICES_FOR_SUPPORTED_VIRTUAL_SCREENS_APPLE

        public static final int CL_CGL_DEVICES_FOR_SUPPORTED_VIRTUAL_SCREENS_APPLE
        Accepted as the param_name argument of GetGLContextInfoAPPLE. Returns an array of cl_device_ids for the CL device(s) corresponding to the virtual screen(s) for the specified CGL context.
        See Also:
        Constant Field Values
      • CL_CGL_DEVICE_FOR_CURRENT_VIRTUAL_SCREEN_APPLE

        public static final int CL_CGL_DEVICE_FOR_CURRENT_VIRTUAL_SCREEN_APPLE
        Accepted as the param_name argument of GetGLContextInfoAPPLE. Returns a cl_device_id for the CL device associated with the virtual screen for the specified CGL context.
        See Also:
        Constant Field Values
    • Method Detail

      • clGetGLContextInfoAPPLE

        public static int clGetGLContextInfoAPPLE(long context,
                                                  long platform_gl_ctx,
                                                  int param_name,
                                                  java.nio.ByteBuffer param_value,
                                                  PointerBuffer param_value_size_ret)
        Provides a query mechanism to retrieve OpenGL context specific information from an OpenCL context to help identify device specific mappings and usage.

        For example, one possible usage would be to allow the client to map a CGL virtual screen index to an appropriate CL device id to insure that the rendering device and the compute device are the same, thus guaranteeing any shared OpenGL memory that is attached o a CL memory object remains resident on the active device.

        Parameters:
        context - the context being queried
        platform_gl_ctx - the OpenGL context handle
        param_name - a constant that specifies the GL context information to query. One of:
        CGL_DEVICES_FOR_SUPPORTED_VIRTUAL_SCREENS_APPLE
        CGL_DEVICE_FOR_CURRENT_VIRTUAL_SCREEN_APPLE
        param_value - a pointer to memory where the appropriate result being queried is returned. If param_value is NULL, it is ignored.
        param_value_size_ret - the actual size in bytes of data being queried by param_value. If NULL, it is ignored.
      • clGetGLContextInfoAPPLE

        public static int clGetGLContextInfoAPPLE(long context,
                                                  long platform_gl_ctx,
                                                  int param_name,
                                                  PointerBuffer param_value,
                                                  PointerBuffer param_value_size_ret)
        PointerBuffer version of: GetGLContextInfoAPPLE