OGLDebugLines.h

//
//  OGLDebugLines.h
//  avara3d
//
//  Created by Morgan Davis on 1/4/26.
//  Copyright © 2026 Morgan K Davis. All rights reserved.
//
 
#ifndef AVARA3D_RENDER_BACKEND_OPENGL_OGLDEBUGLINES_H
#define AVARA3D_RENDER_BACKEND_OPENGL_OGLDEBUGLINES_H
 
#include <vector>
 
#include "a3d/Math.h"
#include "a3d/mesh/Line.h"
#include "a3d/render/backend/opengl/GLTypes.h"
 
namespace a3d {
 
    class OGLMemoryTracker;
 
    struct OGLDebugLines {
 
        // [Internal Types]
 
        struct Vertex {
            math::vec3 pos;
            math::vec3 color;
        };
 
        // [Internal Lifecycle Functions]
 
        explicit OGLDebugLines(OGLMemoryTracker& memoryTracker);
 
        // [Internal Member Functions]
 
        void                ensureBuffers();
        void                upload(const std::vector<Line>& lines);
        void                destroy();
 
        // [Internal Member Variables]
 
        OGLMemoryTracker&   memoryTracker;
        gl::uint_t          vbo         = 0;
        gl::uint_t          vao         = 0;
        gl::sizei_t         vertexCount = 0;
        std::vector<Vertex> cpuVerts    = {};
    };
 
}
 
#endif // AVARA3D_RENDER_BACKEND_OPENGL_OGLDEBUGLINES_H