RageDisplay_OGL_Helpers.h

#ifndef RAGE_DISPLAY_OGL_HELPERS_H
#define RAGE_DISPLAY_OGL_HELPERS_H
 
#ifdef _WIN32
#include <windows.h>
#endif
 
#include <GL/glew.h>
 
/* Import RageDisplay, for types.  Do not include RageDisplay_Legacy.h. */
#include "RageDisplay.h"
 
/* Windows defines GL_EXT_paletted_texture incompletely: */
#ifndef GL_TEXTURE_INDEX_SIZE_EXT
#define GL_TEXTURE_INDEX_SIZE_EXT 0x80ED
#endif
 
namespace RageDisplay_Legacy_Helpers {
void
Init();
std::string
GLToString(GLenum e);
};
 
class RenderTarget
{
  public:
    virtual ~RenderTarget() = default;
    virtual void Create(const RenderTargetParam& param,
                        int& iTextureWidthOut,
                        int& iTextureHeightOut) = 0;
 
    virtual unsigned GetTexture() const = 0;
 
    /* Render to this RenderTarget. */
    virtual void StartRenderingTo() = 0;
 
    /* Stop rendering to this RenderTarget.  Update the texture, if necessary,
     * and make it available. */
    virtual void FinishRenderingTo() = 0;
 
    virtual bool InvertY() const { return false; }
 
    const RenderTargetParam& GetParam() const { return m_Param; }
 
  protected:
    RenderTargetParam m_Param;
};
 
#endif