C4FoWRegion.h

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/*
 * OpenClonk, http://www.openclonk.org
 *
 * Copyright (c) 2014-2016, The OpenClonk Team and contributors
 *
 * Distributed under the terms of the ISC license; see accompanying file
 * "COPYING" for details.
 *
 * "Clonk" is a registered trademark of Matthes Bender, used with permission.
 * See accompanying file "TRADEMARK" for details.
 *
 * To redistribute this file separately, substitute the full license texts
 * for the above references.
 */
 
#ifndef C4FOWREGION_H
#define C4FOWREGION_H
 
#include "C4ForbidLibraryCompilation.h"
#include "lib/C4Rect.h"
#include "graphics/C4FacetEx.h"
#include "player/C4Player.h"
#include "landscape/fow/C4FoW.h"
#ifndef USE_CONSOLE
#include <epoxy/gl.h>
#endif
 
class C4Surface;
 
class C4FoWRegion
{
public:
    C4FoWRegion(C4FoW *pFoW, C4Player *pPlayer);
    ~C4FoWRegion();
 
private:
    C4FoW *pFoW;
#ifndef USE_CONSOLE
    C4Player *pPlayer;
#endif
    std::unique_ptr<C4Surface> pSurface, pBackSurface;
    C4Rect Region, OldRegion;
    FLOAT_RECT ViewportRegion; // Region covered by visible viewport
 
#ifndef USE_CONSOLE
    GLuint hFrameBufDraw, hFrameBufRead;
    GLuint hVBO;
    unsigned int vaoid;
#endif
 
public:
    const C4FoW* getFoW() const { return pFoW; }
    const C4Rect &getRegion() const { return Region; }
    const FLOAT_RECT &getViewportRegion() const { return ViewportRegion; }
    int32_t getSurfaceHeight() const;
    int32_t getSurfaceWidth() const;
 
#ifndef USE_CONSOLE
    GLuint getSurfaceName() const;
#endif
 
    void Update(C4Rect r, const FLOAT_RECT& vp);
    bool Render(const C4TargetFacet *pOnScreen = nullptr);
 
    // Fills a 2x3 matrix to transform fragment coordinates to light texture coordinates
    void GetFragTransform(const C4Rect& clipRect, const C4Rect& outRect, float lightTransform[6]) const;
private:
#ifndef USE_CONSOLE
    bool BindFramebuf(GLuint prev_fb);
#endif
};
 
#endif