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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 <vector>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "ksquirrel-libs/fmt_types.h"
#include "ksquirrel-libs/fileio.h"
#include "fmt_codec_msp_defs.h"
#include "fmt_codec_msp.h"
#include "ksquirrel-libs/error.h"
#include "ksquirrel-libs/fmt_utils.h"
#include "../xpm/codec_msp.xpm"
static const RGB palmono[2] = { RGB(255,255,255), RGB(0,0,0) };
/*
*
* The Microsoft Paint (MSP) image file format is used exclusively for storing
* black-and-white images. The vast majority of MSP files contain line drawings
* and clip art. MSP is used most often by Microsoft Windows applications, but
* may be used by MS-DOS-based programs as well. The Microsoft Paint format is
* apparently being replaced by the more versatile Microsoft Windows BMP format;
* it contains information specifically for use in the Microsoft Windows operating
* environment. For information on the Windows-specific use of the header information,
* refer to the Microsoft Paint format specification available from Microsoft.
*
*/
fmt_codec::fmt_codec() : fmt_codec_base()
{}
fmt_codec::~fmt_codec()
{}
void fmt_codec::options(codec_options *o)
{
o->version = "0.1.0";
o->name = "Microsoft Paint";
o->filter = "*.msp ";
o->config = "";
o->mime = "";
o->mimetype = "image/x-msp";
o->pixmap = codec_msp;
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;
bytes = NULL;
return SQE_OK;
}
s32 fmt_codec::read_next()
{
currentImage++;
if(currentImage)
return SQE_NOTOK;
fmt_image image;
if(!frs.readK(&msp, sizeof(msp_header)))
return SQE_R_BADFILE;
if(msp.key1 == MAGIC_OLD_1 || msp.key2 == MAGIC_OLD_2)
version = 1;
else if(msp.key1 == MAGIC_1 || msp.key2 == MAGIC_2)
version = 2;
else
return SQE_R_BADFILE;
bytes = new u8 [msp.width];
if(!bytes)
return SQE_R_NOMEMORY;
if(version == 2)
{
u16 map_entry;
frs.seekg(32, ios::beg);
for(s32 i = 0;i < msp.height;i++)
{
if(!frs.readK(&map_entry, sizeof(u16)))
return SQE_R_BADFILE;
scanmap.push_back(map_entry);
}
}
image.w = msp.width;
image.h = msp.height;
image.bpp = 1;
image.compression = (version == 2) ? "RLE" : "-";
image.colorspace = fmt_utils::colorSpaceByBpp(1);
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)
{
RGB rgb;
RGBA rgba;
s32 i = 0, k = 0;
u8 c, count, value;
fmt_image *im = image(currentImage);
fmt_utils::fillAlpha(scan, im->w);
line++;
const u16 sz = scanmap[line];
memset(bytes, 0, im->w);
while(i < sz)
{
if(!frs.readK(&c, sizeof(u8)))
return SQE_R_BADFILE;
i++;
if(!c)
{
if(!frs.readK(&count, sizeof(u8))) return SQE_R_BADFILE;
if(!frs.readK(&value, sizeof(u8))) return SQE_R_BADFILE;
i += 2;
if(count)
{
for(s32 s = 0;s < (s32)count;s++)
bytes[k+s] = value;
k += count;
}
}
else
{
if(!frs.readK(bytes+k, sizeof(u8) * c)) return SQE_R_BADFILE;
i++;
k += c;
}
}
s32 aa = 320;
for(s32 k = 0;k <= line;k++)
aa += scanmap[k];
s32 ind = 0;
for(i = 0;i < sz;i++)
{
fmt_utils::expandMono1Byte(bytes[i], byte);
for(s32 j = 0;j < 8 || ind < im->w;j++)
{
memcpy(scan+ind, palmono+byte[i], sizeof(RGB));
ind++;
}
}
return SQE_OK;
}
void fmt_codec::read_close()
{
frs.close();
finfo.meta.clear();
finfo.image.clear();
scanmap.clear();
delete [] bytes;
bytes = NULL;
}
#include "fmt_codec_cd_func.h"
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