imagelib.h

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/*
 Copyright (C) 2001-2006, William Joseph.
 All Rights Reserved.

 This file is part of GtkRadiant.

 GtkRadiant 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.

 GtkRadiant 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 GtkRadiant; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#if !defined(INCLUDED_IMAGELIB_H)
#define INCLUDED_IMAGELIB_H

#include "iimage.h"
#include "iarchive.h"
#include "idatastream.h"
#include <stdlib.h>

struct RGBAPixel
{
        unsigned char red, green, blue, alpha;
};

class RGBAImage: public Image
{
        RGBAImage (const RGBAImage& other);
        RGBAImage& operator= (const RGBAImage& other);
    public:
        RGBAPixel* pixels;
        unsigned int width, height;

        RGBAImage (unsigned int _width, unsigned int _height) :
            pixels(new RGBAPixel[_width * _height]), width(_width), height(_height)
        {
        }
        ~RGBAImage ()
        {
            delete pixels;
        }

        byte* getRGBAPixels () const
        {
            return reinterpret_cast<byte*> (pixels);
        }
        unsigned int getWidth () const
        {
            return width;
        }
        unsigned int getHeight () const
        {
            return height;
        }
};

class ScopedArchiveBuffer
{
    private:
        inline InputStream::byte_type* ArchiveFile_loadBuffer (ArchiveFile& file, std::size_t& length)
        {
            InputStream::byte_type* buffer = (InputStream::byte_type*) malloc(file.size() + 1);
            length = file.getInputStream().read(buffer, file.size());
            buffer[file.size()] = 0;
            return buffer;
        }

        inline void ArchiveFile_freeBuffer (InputStream::byte_type* buffer)
        {
            free(buffer);
        }
    public:
        std::size_t length;
        InputStream::byte_type* buffer;

        ScopedArchiveBuffer (ArchiveFile& file)
        {
            buffer = ArchiveFile_loadBuffer(file, length);
        }
        ~ScopedArchiveBuffer ()
        {
            ArchiveFile_freeBuffer(buffer);
        }
};

#endif