Click here to Skip to main content
15,894,896 members
Articles / Desktop Programming / MFC

CxImage

Rate me:
Please Sign up or sign in to vote.
4.65/5 (949 votes)
15 Feb 2008Zlib13 min read 13.1M   300.6K   1.6K  
CxImage is a C++ class to load, save, display, transform BMP, JPEG, GIF, PNG, TIFF, MNG, ICO, PCX, TGA, WMF, WBMP, JBG, J2K images.
/*
 * File:	ximatga.h
 * Purpose:	TARGA Image Class Loader and Writer
 */
/* === C R E D I T S  &  D I S C L A I M E R S ==============
 * CxImageTGA (c) 05/Jan/2002 Davide Pizzolato - www.xdp.it
 * Permission is given by the author to freely redistribute and include
 * this code in any program as long as this credit is given where due.
 *
 * CxImage version 5.99a 08/Feb/2004
 * See the file history.htm for the complete bugfix and news report.
 *
 * Parts of the code come from Paintlib
 * Copyright (c) 1996-1998 Ulrich von Zadow
 *
 * COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
 * THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
 * CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
 * THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
 * SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
 * PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.
 *
 * Use at your own risk!
 * ==========================================================
 */
#if !defined(__ximaTGA_h)
#define __ximaTGA_h

#include "ximage.h"

#if CXIMAGE_SUPPORT_TGA

class CxImageTGA: public CxImage
{
#pragma pack(1)
typedef struct tagTgaHeader
{
    BYTE   IdLength;            // Image ID Field Length
    BYTE   CmapType;            // Color Map Type
    BYTE   ImageType;           // Image Type

    WORD   CmapIndex;           // First Entry Index
    WORD   CmapLength;          // Color Map Length
    BYTE   CmapEntrySize;       // Color Map Entry Size

    WORD   X_Origin;            // X-origin of Image
    WORD   Y_Origin;            // Y-origin of Image
    WORD   ImageWidth;          // Image Width
    WORD   ImageHeight;         // Image Height
    BYTE   PixelDepth;          // Pixel Depth
    BYTE   ImagDesc;            // Image Descriptor
} TGAHEADER;
#pragma pack()

public:
	CxImageTGA(): CxImage(CXIMAGE_FORMAT_TGA) {}

//	bool Load(const char * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_TGA);}
//	bool Save(const char * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_TGA);}
	bool Decode(CxFile * hFile);
	bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }

#if CXIMAGE_SUPPORT_ENCODE
	bool Encode(CxFile * hFile);
	bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
#endif // CXIMAGE_SUPPORT_ENCODE
protected:
	BYTE ExpandCompressedLine(BYTE* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int width, int y, BYTE rleLeftover);
	void ExpandUncompressedLine(BYTE* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int width, int y, int xoffset);
};

#endif

#endif

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The zlib/libpng License


Written By
Italy Italy
This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.

Comments and Discussions