tiledsurface.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 BACKENDS_GRAPHICS3D_OPENGL_TILED_SURFACE_H
#define BACKENDS_GRAPHICS3D_OPENGL_TILED_SURFACE_H

#include "graphics/opengl/system_headers.h"

#include "common/array.h"
#include "common/rect.h"

#include "graphics/surface.h"

namespace OpenGL {

class TextureGL;
class SurfaceRenderer;

class TiledSurface {
public:
    TiledSurface(uint width, uint height, const Graphics::PixelFormat &pixelFormat);
    ~TiledSurface();

    void copyRectToSurface(const void *src, int srcPitch, int x, int y, int w, int h);

    void update();

    void draw(SurfaceRenderer *surfaceRenderer) const;

    void fill(uint32 color);

    Graphics::Surface *getBackingSurface();

    const Graphics::Surface *getBackingSurface() const;

    uint16 getWidth() const { return _backingSurface.w; }
    uint16 getHeight() const { return _backingSurface.h; }

private:
    static const uint maxTextureSize = 256;

    struct Tile {
        TextureGL *texture;
        Common::Rect rect;
        bool dirty;
    };

    Graphics::Surface _backingSurface;
    Common::Array<Tile> _tiles;

    void invalidateAllTiles();
};

} // End of namespace OpenGL

#endif