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csgfx/csimage.h

00001 /*
00002     Copyright (C) 1998-2000 by Jorrit Tyberghein
00003     Contributions made by Ivan Avramovic <ivan@avramovic.com>
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CS_IMAGE_H__
00021 #define __CS_IMAGE_H__
00022 
00023 #include <stdio.h>
00024 #include "csgfx/rgbpixel.h"
00025 #include "cstypes.h"
00026 #include "igraphic/image.h"
00027 
00034 class csImageFile : public iImage
00035 {
00036 protected:
00038   int Width;
00040   int Height;
00042   void* Image;
00044   csRGBpixel *Palette;
00046   uint8 *Alpha;
00048   char *fName;
00050   int Format;
00052   uint8 has_keycolour, keycolour_r, keycolour_g, keycolour_b;
00053 
00059   csImageFile (int iFormat);
00060 
00069   void set_dimensions (int w, int h);
00070 
00082   void convert_rgba (csRGBpixel *iImage);
00083 
00092   void convert_pal8 (uint8 *iImage, csRGBpixel *iPalette, int nPalColors = 256);
00093 
00099   void convert_pal8 (uint8 *iImage, const csRGBcolor *iPalette,
00100         int nPalColors = 256);
00101 
00105   virtual void FreeImage ();
00106 
00108   int closest_index (csRGBpixel *iColor);
00109 
00110 public:
00111   SCF_DECLARE_IBASE;
00112 
00114   virtual ~csImageFile ();
00115 
00116   /**************************** iImage interface *****************************/
00124   virtual void *GetImageData ();
00126   virtual int GetWidth ();
00128   virtual int GetHeight ();
00130   virtual int GetSize ();
00131 
00133   virtual void Rescale (int newwidth, int newheight);
00134 
00145   virtual csPtr<iImage> MipMap (int step, csRGBpixel *transp);
00146 
00148   virtual void SetName (const char *iName);
00150   virtual const char *GetName ();
00152   virtual int GetFormat ();
00154   virtual csRGBpixel *GetPalette ();
00156   virtual uint8 *GetAlpha ();
00158   virtual void SetFormat (int iFormat);
00160   virtual csPtr<iImage> Clone ();
00162   virtual csPtr<iImage> Crop (int x, int y, int width, int height);
00164   virtual void CheckAlpha ();
00166   virtual bool HasKeycolor ();
00168   virtual void GetKeycolor (int &r, int &g, int &b);
00170   virtual csPtr<iImage> Sharpen (csRGBpixel *transp, int strength);
00171   virtual int HasMipmaps ();
00172 };
00173 
00174 #endif // __CS_IMAGE_H__

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