using AcDream.App.Diagnostics;
using Silk.NET.OpenGL;

namespace AcDream.App.Rendering;

/// <summary>
/// Production render-transaction measurement adapter. CPU frame boundaries
/// remain owned by <see cref="FrameProfiler"/> while this adapter places the
/// GPU query around only the GL-producing render phases.
/// </summary>
internal sealed class FrameProfilerGpuMeasurement : IRenderFrameGpuMeasurement
{
    private readonly FrameProfiler _profiler;
    private readonly GL _gl;

    public FrameProfilerGpuMeasurement(FrameProfiler profiler, GL gl)
    {
        _profiler = profiler ?? throw new ArgumentNullException(nameof(profiler));
        _gl = gl ?? throw new ArgumentNullException(nameof(gl));
    }

    public void BeginFrame()
    {
        _profiler.FrameBoundary(_gl);
        _profiler.BeginGpuFrame();
    }

    public void EndFrame()
    {
        _profiler.EndGpuFrame();
    }
}