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libksquirrel/kernel/kls_lif/fmt_codec_lif.cpp

156 lines
3.4 KiB

/* This file is part of ksquirrel-libs (http://ksquirrel.sf.net)
Copyright (c) 2005 Dmitry Baryshev <ksquirrel@tut.by>
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 <stdlib.h>
#include "ksquirrel-libs/fmt_types.h"
#include "ksquirrel-libs/fileio.h"
#include "ksquirrel-libs/fmt_utils.h"
#include "fmt_codec_lif_defs.h"
#include "fmt_codec_lif.h"
#include "ksquirrel-libs/error.h"
#include "../xpm/codec_lif.xpm"
fmt_codec::fmt_codec() : fmt_codec_base()
{}
fmt_codec::~fmt_codec()
{}
void fmt_codec::options(codec_options *o)
{
o->version = "0.1.2";
o->name = "Homeworld LIF";
o->filter = "*.lif ";
o->config = "";
o->mime = "";
o->mimetype = "image/x-lif";
o->pixmap = codec_lif;
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;
return SQE_OK;
}
s32 fmt_codec::read_next()
{
currentImage++;
if(currentImage)
return SQE_NOTOK;
fmt_image image;
if(!frs.readK(&lif, sizeof(lif_header))) return SQE_R_BADFILE;
/*
lif.version = fmt_utils::konvertLong(lif.version);
lif.flags = fmt_utils::konvertLong(lif.flags);
lif.width = fmt_utils::konvertLong(lif.width);
lif.height = fmt_utils::konvertLong(lif.height);
lif.palOffset = fmt_utils::konvertLong(lif.palOffset);
if(lif.version != LIF_VERSION || lif.flags != LIF_FLAGS)
return SQE_R_BADFILE;
*/
if(strcmp(lif.id, LIF_ID))
return SQE_R_BADFILE;
image.w = lif.width;
image.h = lif.height;
fstream::pos_type pos = frs.tellg();
frs.seekg(lif.width * lif.height, ios::beg);
if(!frs.readK(pal, sizeof(pal)))
return SQE_R_BADFILE;
frs.seekg(pos);
image.compression = "-";
image.colorspace = fmt_utils::colorSpaceByBpp(8);
image.bpp = 8;
image.hasalpha = (bool)(lif.flags & 0x08);
bytes = image.hasalpha ? sizeof(RGBA) : sizeof(RGB);
finfo.image.push_back(image);
return SQE_OK;
}
s32 fmt_codec::read_next_pass()
{
return SQE_OK;
}
s32 fmt_codec::read_scanline(RGBA *scan)
{
u8 c;
fmt_image *im = image(currentImage);
fmt_utils::fillAlpha(scan, im->w);
for(s32 i = 0;i < im->w;i++)
{
if(!frs.readK(&c, sizeof(u8))) return SQE_R_BADFILE;
c++;
memcpy(scan+i, pal+c, bytes);
}
return SQE_OK;
}
void fmt_codec::read_close()
{
frs.close();
finfo.meta.clear();
finfo.image.clear();
}
#include "fmt_codec_cd_func.h"