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libksquirrel/kernel/kls_pix/fmt_codec_pix.cpp

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/* This file is part of ksquirrel-libs (http://ksquirrel.sf.net)
Copyright (c) 2004 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
as32 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/fmt_utils.h"
#include "ksquirrel-libs/fileio.h"
#include "ksquirrel-libs/error.h"
#include "fmt_codec_pix_defs.h"
#include "fmt_codec_pix.h"
#include "../xpm/codec_pix.xpm"
/*
*
* This format is sourced on IRIX
*
*/
fmt_codec::fmt_codec() : fmt_codec_base()
{}
fmt_codec::~fmt_codec()
{}
void fmt_codec::options(codec_options *o)
{
o->version = "1.1.0";
o->name = "Irix PIX image";
o->filter = "*.pix ";
o->config = "";
o->mime = "";
o->mimetype = "image/x-pix";
o->pixmap = codec_pix;
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;
finfo.animated = false;
return SQE_OK;
}
s32 fmt_codec::read_next()
{
u16 _tmp;
PIX_HEADER pfh;
currentImage++;
if(currentImage)
return SQE_NOTOK;
fmt_image image;
if(!frs.be_getshort(&pfh.width)) return SQE_R_BADFILE;
if(!frs.be_getshort(&pfh.height)) return SQE_R_BADFILE;
if(!frs.readK(&_tmp, sizeof(u16))) return SQE_R_BADFILE;
if(!frs.readK(&_tmp, sizeof(u16))) return SQE_R_BADFILE;
if(!frs.be_getshort(&pfh.bpp)) return SQE_R_BADFILE;
if(pfh.bpp != 24)
return SQE_R_BADFILE;
image.w = pfh.width;
image.h = pfh.height;
image.bpp = pfh.bpp;
image.compression = "RLE";
image.colorspace = fmt_utils::colorSpaceByBpp(24);
finfo.image.push_back(image);
return SQE_OK;
}
s32 fmt_codec::read_next_pass()
{
return SQE_OK;
}
s32 fmt_codec::read_scanline(RGBA *scan)
{
s32 len = 0, i, counter = 0;
u8 count;
RGB rgb;
fmt_image *im = image(currentImage);
fmt_utils::fillAlpha(scan, im->w);
switch(im->bpp)
{
case 24:
do
{
if(!frs.readK(&count, 1)) return SQE_R_BADFILE;
len += count;
if(!frs.readK(&rgb.b, 1)) return SQE_R_BADFILE;
if(!frs.readK(&rgb.g, 1)) return SQE_R_BADFILE;
if(!frs.readK(&rgb.r, 1)) return SQE_R_BADFILE;
for(i = 0;i < count;i++)
memcpy(scan+counter++, &rgb, 3);
}while(len < im->w);
break;
}
return SQE_OK;
}
void fmt_codec::read_close()
{
frs.close();
finfo.meta.clear();
finfo.image.clear();
}
#include "fmt_codec_cd_func.h"