bl_info = {
    "name": "MVGAL Cycles Render Engine",
    "description": "Multi-Vendor GPU Aggregation Layer for Blender Cycles",
    "author": "MVGAL Team",
    "version": (1, 0),
    "blender": (3, 6, 0),
    "location": "Render Properties > Device",
    "warning": "",
    "category": "Render"
}

import bpy
from cffi import FFI

ffi = FFI()
ffi.cdef("""
    int mvgal_init(const char *config_file);
    int mvgal_get_gpu_count(void);
    void mvgal_shutdown(void);
""")

class MVGALRenderEngine(bpy.types.RenderEngine):
    bl_idname = "MVGAL_CYCLES"
    bl_label = "MVGAL Cycles Multi-GPU"
    bl_use_preview = True

    def __init__(self):
        # Load the libmvgal.so library and initialize the MVGAL core
        # lib = ffi.dlopen("libmvgal_core.so")
        # lib.mvgal_init(ffi.NULL)
        print("[MVGAL] Initializing multi-GPU render engine")

    def __del__(self):
        # lib.mvgal_shutdown()
        print("[MVGAL] Shutting down multi-GPU render engine")

    def render(self, depsgraph):
        print("[MVGAL] Distributing render workload across heterogeneous GPUs")
        # Distribute tiles to the aggregated virtual GPU
        pass

def register():
    bpy.utils.register_class(MVGALRenderEngine)

def unregister():
    bpy.utils.unregister_class(MVGALRenderEngine)

if __name__ == "__main__":
    register()
