renderer.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef WATCHMAKER_RENDERER_H
#define WATCHMAKER_RENDERER_H

#include "math/matrix4.h"
#include "watchmaker/2d_stuff.h"
#include "watchmaker/rect.h"
#include "watchmaker/sdl_wrapper.h"
#include "watchmaker/struct.h"
#include "watchmaker/types.h"
#include "watchmaker/utils.h"
#include "watchmaker/work_dirs.h"

namespace Watchmaker {

class sdl_wrapper;
struct gMaterial;

struct WindowInfo {
    unsigned int width;
    unsigned int height;
};

class Fonts;
class Renderer {
    WorkDirs *_workDirs;
    WGame *_game;
public:
    TwoDeeStuff _2dStuff;

    Fonts *_fonts = nullptr;
    Common::Rect _viewport;
    Renderer(WGame *game, sdl_wrapper *wrapper);
    bool addMaterial(gMaterial &material, const Common::String &name, int NumFaces, unsigned int LoaderFlags);

    void initGL();

    void showFrame();

    void setVirtualScreen(unsigned int dimX, unsigned int dimY);
    void getScreenInfos(unsigned int &width, unsigned int &height) const;
    WindowInfo getScreenInfos() const;
    bool createScreenBuffer();
    void initBlitterViewPort();

    void setCurCameraViewport(t3dF32 fov, uint8 sup);

    void renderBitmap(SDDBitmap &bitmap);
    void printText(const char *s, unsigned int dst, FontKind font, FontColor color, uint16 x, uint16 y);

    int rFitX(int x);
    int rFitY(int y);
    int rInvFitX(int x);
    int rInvFitY(int y);

    static const int MAX_BITMAP_LIST = 1024;
    struct BitmapList {
        unsigned int _numBitmaps = 0;
        gTexture bitmaps[MAX_BITMAP_LIST];

        unsigned int acquirePosition();
    };
    BitmapList _bitmapList;
    void clearBitmap(int dst, int dposx, int dposy, int sdimx, int sdimy, unsigned char r, unsigned char g, unsigned char b);
    void blitScreenBuffer();
    unsigned int getBitmapDimX(int32 id) const;
    unsigned int getBitmapDimY(int32 id) const;
    unsigned int getBitmapRealDimX(int32 id) const;
    unsigned int getBitmapRealDimY(int32 id) const;

    bool setProjectionMatrix(float width, float height, float fAspect, float fNearPlane, float fFarPlane);
    Math::Vector3d screenSpaceToCameraSpace(float x, float y);

    void add2DStuff();
private:
    sdl_wrapper *sdl;
    // aspect correction
    float gAspectX = 1, gAspectY = 1;
    float gInvAspectX = 1, gInvAspectY = 1;
    float _nearPlane = 0.0f;
    Math::Matrix4 _projectionMatrix;
};


} // End of namespace Watchmaker

#endif // WATCHMAKER_RENDERER_H