// GpuNV12SlotPool.cpp — Cross-DLL singleton resolver for ANSODEngine.dll.
//
// Finds the canonical GpuNV12SlotPool instance exported by ANSCV.dll
// via GetProcAddress.  No link dependency on ANSCV.lib needed.

#define WIN32_LEAN_AND_MEAN
#define NOMINMAX
#include <windows.h>
#include "GpuNV12SlotPool.h"

GpuNV12SlotPool* GpuNV12SlotPool::resolveProcessWide() {
    // ANSCV.dll is always loaded before inference starts (it provides RTSP).
    HMODULE hMod = GetModuleHandleA("ANSCV.dll");
    if (hMod) {
        typedef GpuNV12SlotPool* (*GetInstanceFn)();
        auto fn = reinterpret_cast<GetInstanceFn>(
            GetProcAddress(hMod, "GpuNV12SlotPool_GetInstance"));
        if (fn) return fn();
    }
    // Fallback: local instance (unit tests without ANSCV.dll).
    static GpuNV12SlotPool local;
    return &local;
}