mythegl.h

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#ifndef MYTHEGL_H
#define MYTHEGL_H
 
// Qt
#include <QOpenGLContext>
 
// MythTV
#include "libmythbase/mythconfig.h"
#include "libmythui/mythuiexp.h"
 
using MYTH_EGLIMAGETARGET  = void  (*)(GLenum, void*);
using MYTH_EGLCREATEIMAGE  = void* (*)(void*, void*, unsigned int, void*, const int32_t *);
using MYTH_EGLDESTROYIMAGE = void  (*)(void*, void*);
#ifdef Q_OS_DARWIN
using MYTH_EGLGETPLATFORMDISPLAY = void* (*)(GLenum, int, const intptr_t*);
#else
using MYTH_EGLGETPLATFORMDISPLAY = void* (*)(GLenum, void*, const intptr_t*);
#endif
 
class MythRenderOpenGL;
 
class MUI_PUBLIC MythEGL
{
  public:
    explicit MythEGL(MythRenderOpenGL *Context);
   ~MythEGL() = default;
 
    bool  IsEGL(void);
    bool  HasEGLExtension(const QString& Extension);
    void* GetEGLDisplay(void);
    static qint32 GetEGLError(void);
    void  eglImageTargetTexture2DOES (GLenum Target, void* Image);
    void* eglCreateImageKHR          (void* Disp, void* Context, unsigned int Target,
                                      void* Buffer, const int32_t *Attributes);
    void  eglDestroyImageKHR         (void* Disp, void* Image);
    static QString GetEGLVendor(void);
 
  private:
    Q_DISABLE_COPY(MythEGL)
    bool  InitEGL(void);
 
#if CONFIG_EGL
    MythRenderOpenGL    *m_context                    { nullptr };
#endif
    void*                m_eglDisplay                 { nullptr };
    MYTH_EGLIMAGETARGET  m_eglImageTargetTexture2DOES { nullptr };
    MYTH_EGLCREATEIMAGE  m_eglCreateImageKHR          { nullptr };
    MYTH_EGLDESTROYIMAGE m_eglDestroyImageKHR         { nullptr };
};
 
#endif // MYTHEGL_H