GLManager.h

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#pragma once
 
#include "vapor/ShaderManager.h"
#include "vapor/MatrixManager.h"
 
namespace VAPoR {
 
class LegacyGL;
class FontManager;
 
 
struct RENDER_API GLManager {
    ShaderManager *shaderManager;
    FontManager *  fontManager;
    MatrixManager *matrixManager;
    LegacyGL *     legacy;
 
    GLManager();
    ~GLManager();
 
    static std::vector<int> GetViewport();
    static glm::vec2        GetViewportSize();
 
    void PixelCoordinateSystemPush();
    void PixelCoordinateSystemPop();
 
    enum class Vendor { Intel, Nvidia, AMD, Mesa, Other, Unknown };
 
    static Vendor GetVendor();
    static void   GetGLVersion(int *major, int *minor);
    static int    GetGLSLVersion();
    static bool   IsCurrentOpenGLVersionSupported();
    static bool   CheckError();
 
#ifndef NDEBUG
    void ShowDepthBuffer();
#endif
    static void * BeginTimer();
    static double EndTimer(void *startTime);
 
private:
    static Vendor _cachedVendor;
 
    void _queryVendor();
};
 
}    // namespace VAPoR