Initial setup for CLion

include/ANSGpuConvert.h

@@ -0,0 +1,59 @@
+#pragma once
+// ANSGpuConvert.h — Cross-DLL GPU NV12→BGR conversion.
+//
+// ANSODEngine.dll exports ANSGpuNV12ToBGR() (defined in nv12_to_rgb.cu).
+// This header provides gpu_nv12_to_bgr() which resolves that export at runtime
+// via GetProcAddress — no link dependency on ANSODEngine.lib needed.
+//
+// Usage in video_player.cpp:
+//   #include "ANSGpuConvert.h"
+//   int rc = gpu_nv12_to_bgr(yPlane, yLinesize, uvPlane, uvLinesize,
+//                             bgrOut, bgrStep, width, height, gpuIndex);
+//   if (rc != 0) { /* fallback to CPU */ }
+
+#include <cstdint>
+
+#ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#define NOMINMAX
+#include <windows.h>
+#endif
+
+// Function signature matching ANSGpuNV12ToBGR export in nv12_to_rgb.cu
+typedef int (*ANSGpuNV12ToBGR_Fn)(
+    const uint8_t* yPlane,   int yLinesize,
+    const uint8_t* uvPlane,  int uvLinesize,
+    uint8_t*       bgrOut,   int bgrStep,
+    int width, int height, int gpuIndex);
+
+// Resolve ANSGpuNV12ToBGR from ANSODEngine.dll at runtime.
+// Returns nullptr if ANSODEngine.dll is not loaded or export not found.
+inline ANSGpuNV12ToBGR_Fn resolve_gpu_nv12_to_bgr() {
+#ifdef _WIN32
+    static ANSGpuNV12ToBGR_Fn s_fn = nullptr;
+    static bool s_tried = false;
+    if (!s_tried) {
+        s_tried = true;
+        HMODULE hMod = GetModuleHandleA("ANSODEngine.dll");
+        if (hMod) {
+            s_fn = reinterpret_cast<ANSGpuNV12ToBGR_Fn>(
+                GetProcAddress(hMod, "ANSGpuNV12ToBGR"));
+        }
+    }
+    return s_fn;
+#else
+    return nullptr;
+#endif
+}
+
+// Convenience wrapper. Returns 0 on success, negative on error, 1 if not available.
+inline int gpu_nv12_to_bgr(
+    const uint8_t* yPlane,   int yLinesize,
+    const uint8_t* uvPlane,  int uvLinesize,
+    uint8_t*       bgrOut,   int bgrStep,
+    int width, int height, int gpuIndex = 0)
+{
+    auto fn = resolve_gpu_nv12_to_bgr();
+    if (!fn) return 1;  // ANSODEngine not loaded — caller should use CPU fallback
+    return fn(yPlane, yLinesize, uvPlane, uvLinesize, bgrOut, bgrStep, width, height, gpuIndex);
+}