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/* This file is part of ksquirrel-libs (http://ksquirrel.sf.net)
Copyright (c) 2005 Dmitry Baryshev <[email protected]>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation;
either version 2 of the License, or (at your option) any later
version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <iostream>
#include <stdio.h>
#include <string.h>
#include "ksquirrel-libs/fmt_types.h"
#include "ksquirrel-libs/fileio.h"
#include "ksquirrel-libs/fmt_utils.h"
#include "fmt_codec_koala_defs.h"
#include "fmt_codec_koala.h"
#include "ksquirrel-libs/error.h"
#include "../xpm/codec_koala.xpm"
// Code partially taken from FreeImage3
/*
*
* Commodore 64 Koala
*
*/
const RGB c64pal[16] =
{
RGB( 0, 0, 0 ), // Black
RGB( 255, 255, 255 ), // White
RGB( 170, 17, 17 ), // Red
RGB( 12, 204, 204 ), // Cyan
RGB( 221, 51, 221 ), // Purple
RGB( 0, 187, 0 ), // Green
RGB( 0, 0, 204 ), // Blue
RGB( 255, 255, 140 ), // Yellow
RGB( 204, 119, 34 ), // Orange
RGB( 136, 68, 0 ), // Brown
RGB( 255, 153, 136 ), // Light red
RGB( 92, 92, 92 ), // Gray 1
RGB( 170, 170, 170 ), // Gray 2
RGB( 140, 255, 178 ), // Light green
RGB( 39, 148, 255 ), // Light blue
RGB( 196, 196, 196 ) // Gray 3
};
fmt_codec::fmt_codec() : fmt_codec_base()
{}
fmt_codec::~fmt_codec()
{}
void fmt_codec::options(codec_options *o)
{
o->version = "0.2.2";
o->name = "Commodore 64 Koala";
o->filter = "*.koa *.kla ";
o->config = "";
o->mime = "\x0000\x0060";
o->mimetype = "image/x-koala";
o->pixmap = codec_koala;
o->readable = true;
o->canbemultiple = false;
o->writestatic = false;
o->writeanimated = false;
o->needtempfile = false;
}
s32 fmt_codec::read_init(const std::string &file)
{
frs.open(file.c_str(), ios::binary | ios::in);
if(!frs.good())
return SQE_R_NOFILE;
currentImage = -1;
read_error = false;
finfo.animated = false;
pixel_mask[0] = 0xc0;
pixel_mask[1] = 0x30;
pixel_mask[2] = 0x0c;
pixel_mask[3] = 0x03;
pixel_displ[0] = 6;
pixel_displ[1] = 4;
pixel_displ[2] = 2;
pixel_displ[3] = 0;
return SQE_OK;
}
s32 fmt_codec::read_next()
{
currentImage++;
if(currentImage)
return SQE_NOTOK;
fmt_image image;
u8 load[2];
if(!frs.readK(load, sizeof(load)))
return SQE_R_BADFILE;
if(load[0] != 0x00 || load[1] != 0x60)
{
((u8 *)&koala)[0] = load[0];
((u8 *)&koala)[1] = load[1];
if(!frs.readK((u8 *)&koala + 2, 10001 - 2))
return SQE_R_BADFILE;
}
else
{
if(!frs.readK((u8 *)&koala, 10001))
return SQE_R_BADFILE;
}
foundcolor = 0;
image.w = KOALA_WIDTH;
image.h = KOALA_HEIGHT;
image.bpp = 8;
image.compression = "-";
image.colorspace = fmt_utils::colorSpaceByBpp(8);
finfo.image.push_back(image);
line = -1;
return SQE_OK;
}
s32 fmt_codec::read_next_pass()
{
return SQE_OK;
}
s32 fmt_codec::read_scanline(RGBA *scan)
{
line++;
fmt_image *im = image(currentImage);
fmt_utils::fillAlpha(scan, im->w);
for(s32 x = 0;x < KOALA_WIDTH / 2;x++)
{
index = (x / 4) * 8 + (line % 8) + (line / 8) * KOALA_WIDTH;
colorindex = (x / 4) + (line / 8) * 40;
pixel = (koala.image[index] & pixel_mask[x % 4]) >> pixel_displ[x % 4];
// Retrieve RGB values
switch(pixel)
{
case 0: // Background
foundcolor = koala.background;
break;
case 1: // Color 1
foundcolor = koala.color1[colorindex] >> 4;
break;
case 2: // Color 2
foundcolor = koala.color1[colorindex] & 0xf;
break;
case 3: // Color 3
foundcolor = koala.color2[colorindex] & 0xf;
break;
}
memcpy(scan+x*2, c64pal+foundcolor, sizeof(RGB));
memcpy(scan+x*2+1, c64pal+foundcolor, sizeof(RGB));
}
return SQE_OK;
}
void fmt_codec::read_close()
{
frs.close();
finfo.meta.clear();
finfo.image.clear();
}
#include "fmt_codec_cd_func.h"
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