/* 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 2 * 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ #ifndef GOB_SURFACE_H #define GOB_SURFACE_H #include "common/scummsys.h" #include "common/ptr.h" #include "common/rational.h" namespace Common { class SeekableReadStream; } namespace Gob { enum ImageType { kImageTypeNone = -1, kImageTypeTGA = 0, kImageTypeIFF, kImageTypeBRC, kImageTypeBMP, kImageTypeJPEG }; /** An iterator over a surface's image data, automatically handles different color depths. */ class Pixel { public: Pixel(byte *vidMem, uint8 bpp, byte *min, byte *max); Pixel &operator++(); Pixel operator++(int x); Pixel &operator--(); Pixel operator--(int x); Pixel &operator+=(int x); Pixel &operator-=(int x); uint32 get() const; void set(uint32 p); bool isValid() const; private: byte *_vidMem; byte *_min, *_max; uint8 _bpp; }; /** A const iterator over a surface's image data, automatically handles different color depths. */ class ConstPixel { public: ConstPixel(const byte *vidMem, uint8 bpp, const byte *min, const byte *max); ConstPixel &operator++(); ConstPixel operator++(int x); ConstPixel &operator--(); ConstPixel operator--(int x); ConstPixel &operator+=(int x); ConstPixel &operator-=(int x); uint32 get() const; bool isValid() const; private: const byte *_vidMem; const byte *_min, *_max; uint8 _bpp; }; class Surface { public: Surface(uint16 width, uint16 height, uint8 bpp, byte *vidMem = 0); Surface(uint16 width, uint16 height, uint8 bpp, const byte *vidMem); ~Surface(); uint16 getWidth () const; uint16 getHeight() const; uint8 getBPP () const; byte *getData(uint16 x = 0, uint16 y = 0); const byte *getData(uint16 x = 0, uint16 y = 0) const; void resize(uint16 width, uint16 height); void setBPP(uint8 bpp); Pixel get(uint16 x = 0, uint16 y = 0); ConstPixel get(uint16 x = 0, uint16 y = 0) const; void blit(const Surface &from, int16 left, int16 top, int16 right, int16 bottom, int16 x, int16 y, int32 transp = -1); void blit(const Surface &from, int16 x, int16 y, int32 transp = -1); void blit(const Surface &from, int32 transp = -1); void blitScaled(const Surface &from, int16 left, int16 top, int16 right, int16 bottom, int16 x, int16 y, Common::Rational scale, int32 transp = -1); void blitScaled(const Surface &from, int16 x, int16 y, Common::Rational scale, int32 transp = -1); void blitScaled(const Surface &from, Common::Rational scale, int32 transp = -1); void fillRect(int16 left, int16 top, int16 right, int16 bottom, uint32 color); void fill(uint32 color); void clear(); void shadeRect(uint16 left, uint16 top, uint16 right, uint16 bottom, uint32 color, uint8 strength); void recolor(uint8 from, uint8 to); void putPixel(uint16 x, uint16 y, uint32 color); void drawLine(uint16 x0, uint16 y0, uint16 x1, uint16 y1, uint32 color); void drawRect(uint16 left, uint16 top, uint16 right, uint16 bottom, uint32 color); void drawCircle(uint16 x0, uint16 y0, uint16 radius, uint32 color, int16 pattern = 0); void blitToScreen(uint16 left, uint16 top, uint16 right, uint16 bottom, uint16 x, uint16 y) const; bool loadImage(Common::SeekableReadStream &stream); bool loadImage(Common::SeekableReadStream &stream, ImageType type); static ImageType identifyImage(Common::SeekableReadStream &stream); private: uint16 _width; uint16 _height; uint8 _bpp; bool _ownVidMem; byte *_vidMem; static bool clipBlitRect(int16 &left, int16 &top, int16 &right, int16 &bottom, int16 &x, int16 &y, uint16 dWidth, uint16 dHeight, uint16 sWidth, uint16 sHeight); bool loadTGA (Common::SeekableReadStream &stream); bool loadIFF (Common::SeekableReadStream &stream); bool loadBRC (Common::SeekableReadStream &stream); bool loadBMP (Common::SeekableReadStream &stream); bool loadJPEG(Common::SeekableReadStream &stream); }; typedef Common::SharedPtr<Surface> SurfacePtr; } // End of namespace Gob #endif // GOB_SURFACE_H