OpenGL Interoperability

class GLBuffer:
    """
    OpenCL buffer created from OpenGL buffer object.
    
    Inherits from MemoryObject with OpenGL-specific functionality.
    """
    
    def __init__(self, context, flags, bufobj):
        """
        Create OpenCL buffer from OpenGL buffer.
        
        Parameters:
        - context (Context): OpenCL context with OpenGL sharing
        - flags (mem_flags): Memory access flags
        - bufobj (int): OpenGL buffer object ID
        """
    
    def get_gl_object_info(self):
        """
        Get OpenGL object information.
        
        Returns:
        tuple[gl_object_type, int]: Object type and OpenGL object ID
        """

class GLRenderBuffer:
    """
    OpenCL memory object created from OpenGL renderbuffer.
    
    Inherits from MemoryObject for OpenGL renderbuffer sharing.
    """
    
    def __init__(self, context, flags, bufobj):
        """
        Create OpenCL memory object from OpenGL renderbuffer.
        
        Parameters:
        - context (Context): OpenCL context with OpenGL sharing
        - flags (mem_flags): Memory access flags  
        - bufobj (int): OpenGL renderbuffer object ID
        """
    
    def get_gl_object_info(self):
        """Get OpenGL renderbuffer information."""

class GLTexture:
    """
    OpenCL image created from OpenGL texture object.
    
    Inherits from Image with OpenGL texture sharing capabilities.
    """
    
    def __init__(self, context, flags, texture_target, miplevel, texture, dims):
        """
        Create OpenCL image from OpenGL texture.
        
        Parameters:
        - context (Context): OpenCL context with OpenGL sharing
        - flags (mem_flags): Memory access flags
        - texture_target (int): OpenGL texture target (GL_TEXTURE_2D, etc.)
        - miplevel (int): Mipmap level
        - texture (int): OpenGL texture object ID
        - dims (int): Number of texture dimensions
        """
    
    def get_gl_object_info(self):
        """Get OpenGL texture information."""

def enqueue_acquire_gl_objects(queue, mem_objects, wait_for=None):
    """
    Acquire OpenGL objects for OpenCL use.
    
    Must be called before OpenCL operations on shared OpenGL objects.
    
    Parameters:
    - queue (CommandQueue): OpenCL command queue
    - mem_objects (list): List of OpenGL memory objects to acquire
    - wait_for (list[Event], optional): Events to wait for
    
    Returns:
    Event: Completion event
    """

def enqueue_release_gl_objects(queue, mem_objects, wait_for=None):
    """
    Release OpenGL objects back to OpenGL.
    
    Must be called after OpenCL operations before OpenGL can use objects.
    
    Parameters:
    - queue (CommandQueue): OpenCL command queue  
    - mem_objects (list): List of OpenGL memory objects to release
    - wait_for (list[Event], optional): Events to wait for
    
    Returns:
    Event: Completion event
    """

def have_gl():
    """
    Check if OpenGL interoperability is available.
    
    Returns:
    bool: True if OpenGL/OpenCL interop is supported
    """

def get_apple_cgl_share_group():
    """
    Get Apple CGL share group for context creation.
    
    macOS-specific function for OpenGL context sharing.
    
    Returns:
    object: CGL share group handle
    """

import pyopencl as cl
import numpy as np
from OpenGL.GL import *

# Create OpenCL context with OpenGL sharing
ctx = cl.create_some_context()
queue = cl.CommandQueue(ctx)

# Create OpenGL buffer
gl_buffer = glGenBuffers(1)
glBindBuffer(GL_ARRAY_BUFFER, gl_buffer)
glBufferData(GL_ARRAY_BUFFER, 1024, None, GL_DYNAMIC_DRAW)

# Create OpenCL buffer from OpenGL buffer
cl_buffer = cl.GLBuffer(ctx, cl.mem_flags.READ_WRITE, gl_buffer)

# Acquire for OpenCL use
cl.enqueue_acquire_gl_objects(queue, [cl_buffer])

# Perform OpenCL operations
# ... OpenCL compute operations on cl_buffer ...

# Release back to OpenGL
cl.enqueue_release_gl_objects(queue, [cl_buffer])

# Now OpenGL can use the buffer
glBindBuffer(GL_ARRAY_BUFFER, gl_buffer)
# ... OpenGL rendering operations ...

# OpenGL object types
class gl_object_type: ...

# OpenGL texture information
class gl_texture_info: ...

# OpenGL context properties
class gl_context_info: ...