Palette.cpp

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/*
Copyright (C) 2003-2004 The Pentagram team

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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#include "pent_include.h"

#include "Palette.h"
#include "IDataSource.h"
#include "Texture.h"
#include <cstring>

namespace Pentagram
{

void Palette::load(IDataSource& ds, IDataSource& xformds)
{
        load(ds);
        for (int i = 0; i < 256; i++)
                xform_untransformed[i] = xformds.read4();
}

void Palette::load(IDataSource& ds)
{
        int i;
        ds.read(palette, 768);

        // convert from 0-63 to 0-255 palette
        for (i = 0; i < 256; i++)
        {
                palette[i*3] = (palette[i*3]*255)/63;
                palette[i*3+1] = (palette[i*3+1]*255)/63;
                palette[i*3+2] = (palette[i*3+2]*255)/63;
        }

        for (i = 0; i < 256; i++)
                xform_untransformed[i] = 0;

        // Setup the transformation matrix
        matrix[0] = 0x800;      matrix[1] = 0;          matrix[2] = 0;          matrix[3] = 0;
        matrix[4] = 0;          matrix[5] = 0x800;      matrix[6] = 0;          matrix[7] = 0;
        matrix[8] = 0;          matrix[9] = 0;          matrix[10] = 0x800;     matrix[11] = 0;

        transform=Transform_None;
}

}

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