#ifndef __I_VIDEO_H__
#define __I_VIDEO_H__


class DFrameBuffer;


class IVideo
{
public:
	virtual ~IVideo() {}

	virtual DFrameBuffer *CreateFrameBuffer() = 0;

	bool SetResolution();

	virtual void DumpAdapters();
};

void I_InitGraphics();
void I_ShutdownGraphics();

extern IVideo *Video;


// Pause a bit.
// [RH] Despite the name, it apparently never waited for the VBL, even in
// the original DOS version (if the Heretic/Hexen source is any indicator).
void I_WaitVBL(int count);


#endif // __I_VIDEO_H__