graphics.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 PELROCK_GRAPHICS_H
#define PELROCK_GRAPHICS_H

#include "pelrock/types.h"

namespace Graphics {
class Font;
}

namespace Pelrock {

class GraphicsManager {
public:
    GraphicsManager();
    ~GraphicsManager();

    // Overlay / palette utilities
    Common::Point showOverlay(int height, Graphics::ManagedSurface &buf);
    void fadeToBlack(int stepSize);
    void fadePaletteToTarget(byte *targetPalette, int stepSize);
    void clearScreen();

    // Text rendering
    void drawColoredText(Graphics::ManagedSurface *screen, const Common::String &text, int x, int y, int w, byte &defaultColor, Graphics::Font *font);
    void drawColoredTexts(Graphics::ManagedSurface *surface, const Common::StringArray &text, int x, int y, int w, int yPadding, Graphics::Font *font);

    // Frame / background management
    void copyBackgroundToBuffer();
    void presentFrame();

    // Sticker rendering
    void placeStickersFirstPass();
    void placeStickersSecondPass();
    void placeSticker(Sticker &sticker, byte *pixels);

    // Palette animations
    void updatePaletteAnimations();
    void animateFadePalette(PaletteAnim *anim);
    void animateRotatePalette(PaletteAnim *anim);

    void reflectionEffect(byte *buf, int x, int y, int width, int height);

    // scaling
    void calculateScalingMasks();

    ScaleCalculation calculateScaling(int yPos, ScalingParams scalingParams);

    byte *scale(int scaleY, int finalWidth, int finalHeight, byte *buf);

    // Scaling look-up tables initialized by calculateScalingMasks().
    Common::Array<Common::Array<int>> _widthScalingTable;
    Common::Array<Common::Array<int>> _heightScalingTable;
};

} // End of namespace Pelrock
#endif // PELROCK_GRAPHICS_H