Class APPLEGLSharing


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

      • nclGetGLContextInfoAPPLE

        public static int nclGetGLContextInfoAPPLE​(long context,
                                                   long platform_gl_ctx,
                                                   int param_name,
                                                   long param_value_size,
                                                   long param_value,
                                                   long param_value_size_ret)
        Unsafe version of: GetGLContextInfoAPPLE
        Parameters:
        param_value_size - the size in bytes of memory pointed to by param_value. This size must be ≥ size of return type. If param_value is NULL, it is ignored.
      • clGetGLContextInfoAPPLE

        public static int clGetGLContextInfoAPPLE​(long context,
                                                  long platform_gl_ctx,
                                                  int param_name,
                                                  @Nullable
                                                  java.nio.ByteBuffer param_value,
                                                  @Nullable
                                                  PointerBuffer param_value_size_ret)
        
        public static int clGetGLContextInfoAPPLE​(long context,
                                                  long platform_gl_ctx,
                                                  int param_name,
                                                  @Nullable
                                                  PointerBuffer param_value,
                                                  @Nullable
                                                  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.