screen.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 MADE_SCREEN_H
#define MADE_SCREEN_H

#include "made/resource.h"

#include "common/rect.h"

namespace Made {

struct SpriteChannel {
    int16 type;
    int16 state;
    uint16 index;
    int16 x, y;
    uint16 fontNum;
    int16 textColor, outlineColor;
    int16 frameNum;
    int16 mask;
};

struct ClipInfo {
    Common::Rect clipRect;
    Graphics::Surface *destSurface;
};

struct SpriteListItem {
    int16 index, xofs, yofs;
};

class MadeEngine;
class ScreenEffects;

static const byte defaultMouseCursor[256] = {
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  1, 15, 15,  1,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  1, 15, 15,  1,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  1, 15, 15,  1,  0,  0,  0,  0,  0,
    0,  1,  1,  1,  1,  1,  1,  1, 15, 15,  1,  0,  0,  0,  0,  0,
    1,  1, 15,  1, 15,  1, 15,  1, 15, 15,  1,  0,  0,  0,  0,  0,
    1, 15, 15,  1, 15,  1, 15,  1, 15, 15,  1,  0,  0,  0,  0,  0,
    1, 15, 15, 15, 15, 15, 15, 15, 15, 15,  1,  0,  1,  1,  1,  0,
    1, 15, 15, 15, 15, 15, 15, 15, 15, 15,  1,  1, 15, 15, 15,  1,
    1, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,  1,  1,  1,
    1, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,  1,  1,  0,  0,
    1,  1, 15, 15, 15, 15, 15, 15, 15, 15, 15,  1,  1,  0,  0,  0,
    0,  1,  1, 15, 15, 15, 15, 15, 15, 15,  1,  1,  0,  0,  0,  0,
    0,  0,  1,  1,  1,  1,  1,  1,  1,  1,  1,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0
};

class Screen {
public:
    Screen(MadeEngine *vm);
    ~Screen();

    void clearScreen();

    void drawSurface(Graphics::Surface *sourceSurface, int x, int y, int16 flipX, int16 flipY, int16 mask, const ClipInfo &clipInfo);

    void setRGBPalette(byte *palRGB, int start = 0, int count = 256);
    bool isPaletteLocked() { return _paletteLock; }
    void setPaletteLock(bool lock) { _paletteLock = lock; }
    bool isScreenLocked() { return _screenLock; }
    void setScreenLock(bool lock) { _screenLock = lock; }
    void setVisualEffectNum(int visualEffectNum) { _visualEffectNum = visualEffectNum; }

    void setClipArea(uint16 x1, uint16 y1, uint16 x2, uint16 y2) {
        _clipArea.clipRect = Common::Rect(x1, y1, x2, y2);
    }

    void setExcludeArea(uint16 x1, uint16 y1, uint16 x2, uint16 y2);

    void setClip(int16 clip) { _clip = clip; }
    void setExclude(int16 exclude) { _exclude = exclude; }
    void setGround(int16 ground) { _ground = ground; }
    void setMask(int16 mask) { _mask = mask; }

    void setTextColor(int16 color) { _textColor = color; }

    void setTextRect(const Common::Rect &textRect) {
        _textRect = textRect;
        _textX = _textRect.left;
        _textY = _textRect.top;
    }

    void getTextRect(Common::Rect &textRect) {
        textRect = _textRect;
    }

    void setOutlineColor(int16 color) {
        _outlineColor = color;
        _dropShadowColor = -1;
    }

    void setDropShadowColor(int16 color) {
        _outlineColor = -1;
        _dropShadowColor = color;
    }

    void setTextXY(int16 x, int16 y) {
        _textX = x;
        _textY = y;
    }

    void homeText() {
        _textX = _textRect.left;
        _textY = _textRect.top;
    }

    uint16 updateChannel(uint16 channelIndex);
    void deleteChannel(uint16 channelIndex);
    int16 getChannelType(uint16 channelIndex);
    int16 getChannelState(uint16 channelIndex);
    void setChannelState(uint16 channelIndex, int16 state);
    uint16 setChannelLocation(uint16 channelIndex, int16 x, int16 y);
    uint16 setChannelContent(uint16 channelIndex, uint16 index);
    void setChannelUseMask(uint16 channelIndex);
    void drawSpriteChannels(const ClipInfo &clipInfo, int16 includeStateMask, int16 excludeStateMask);
    void updateSprites();
    void clearChannels();

    uint16 drawFlex(uint16 flexIndex, int16 x, int16 y, int16 flipX, int16 flipY, int16 mask, const ClipInfo &clipInfo);

    void drawAnimFrame(uint16 animIndex, int16 x, int16 y, int16 frameNum, int16 flipX, int16 flipY, const ClipInfo &clipInfo);

    uint16 drawPic(uint16 index, int16 x, int16 y, int16 flipX, int16 flipY);
    uint16 drawMask(uint16 index, int16 x, int16 y);

    uint16 drawAnimPic(uint16 animIndex, int16 x, int16 y, int16 frameNum, int16 flipX, int16 flipY);

    void addSprite(uint16 spriteIndex);

    uint16 drawSprite(uint16 flexIndex, int16 x, int16 y);
    uint16 placeSprite(uint16 channelIndex, uint16 flexIndex, int16 x, int16 y);

    uint16 placeAnim(uint16 channelIndex, uint16 animIndex, int16 x, int16 y, int16 frameNum);
    int16 setAnimFrame(uint16 channelIndex, int16 frameNum);
    int16 getAnimFrame(uint16 channelIndex);

    uint16 placeText(uint16 channelIndex, uint16 textObjectIndex, int16 x, int16 y, uint16 fontNum, int16 textColor, int16 outlineColor);

    void show();
    void flash(int count);

    void setFont(int16 fontNum);
    void printChar(uint c, int16 x, int16 y, byte color);
    void printText(const char *text);
    void printTextEx(const char *text, int16 x, int16 y, int16 fontNum, int16 textColor, int16 outlineColor, const ClipInfo &clipInfo);
    void printObjectText(int16 objectIndex, int16 x, int16 y, int16 fontNum, int16 textColor, int16 outlineColor, const ClipInfo &clipInfo);
    int16 getTextWidth(int16 fontNum, const char *text);

    // Interface functions for the screen effects class
    Graphics::Surface *lockScreen();
    void unlockScreen();
    void showWorkScreen();
    void copyRectToScreen(const void *buf, int pitch, int x, int y, int w, int h);
    void updateScreenAndWait(int delay);

    int16 addToSpriteList(int16 index, int16 xofs, int16 yofs);
    SpriteListItem getFromSpriteList(int16 index);
    void clearSpriteList();

    void setDefaultMouseCursor();

protected:
    MadeEngine *_vm;
    ScreenEffects *_fx;

    bool _screenLock;
    bool _paletteLock;

    byte *_palette, *_newPalette;
    int _paletteColorCount, _oldPaletteColorCount;
    bool _paletteInitialized, _needPalette;
    int16 _textColor;
    int16 _outlineColor;
    int16 _dropShadowColor;

    int16 _textX, _textY;
    Common::Rect _textRect;
    int16 _currentFontNum;
    FontResource *_font;
    ClipInfo _fontDrawCtx;

    int16 _clip, _exclude, _ground, _mask;
    int _visualEffectNum;

    Graphics::Surface *_backgroundScreen, *_workScreen, *_screenMask;
    ClipInfo _clipArea, _backgroundScreenDrawCtx, _workScreenDrawCtx, _maskDrawCtx;

    ClipInfo _excludeClipArea[4];
    bool _excludeClipAreaEnabled[4];

    uint16 _channelsUsedCount;
    SpriteChannel _channels[100];

    Common::Array<SpriteListItem> _spriteList;

};

} // End of namespace Made

#endif /* MADE_H */