You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
libksquirrel/kernel/kls_wmf/fmt_codec_wmf.cpp

151 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 "ksquirrel-libs/fmt_types.h"
#include "ksquirrel-libs/fileio.h"
#include "ksquirrel-libs/error.h"
#include "ksquirrel-libs/fmt_utils.h"
#include "fmt_codec_wmf_defs.h"
#include "fmt_codec_wmf.h"
#include "../xpm/codec_wmf.xpm"
/*
*
* Microsoft Windows Metafile Format (WMF) files are used to store both
* vector and bitmap-format graphical data in memory or in disk files.
* The vector data stored in WMF files is described as Microsoft Windows
* Graphics Device Interface (GDI) commands. In the Window environment
* these commands are interpreted and played back on an output device
* using the Windows API PlayMetaFile() function. Bitmap data stored in
* a WMF file may be stored in the form of a Microsoft Device Dependent
* Bitmap (DDB), or Device Independent Bitmap (DIB).
*
*/
extern int call(int, char **, unsigned char **, int *, int *);
fmt_codec::fmt_codec() : fmt_codec_base()
{}
fmt_codec::~fmt_codec()
{}
void fmt_codec::options(codec_options *o)
{
o->version = "0.9.0";
o->name = "Windows Metafile";
o->filter = "*.wmf ";
o->config = "";
o->mime = "";
o->mimetype = "image/x-wmf";
o->pixmap = codec_wmf;
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;
frs.close();
currentImage = -1;
finfo.animated = false;
const char * argv[] =
{
"wmf2gd",
file.c_str()
};
buf = NULL;
call(2, (char **)argv, &buf, &w, &h);
if(!buf)
return SQE_R_NOMEMORY;
return SQE_OK;
}
s32 fmt_codec::read_next()
{
currentImage++;
if(currentImage)
return SQE_NOTOK;
fmt_image image;
image.bpp = 32;
image.w = w;
image.h = h;
image.compression = "-";
image.colorspace = "Vectorized RGB";
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)
{
fmt_image *im = image(currentImage);
fmt_utils::fillAlpha(scan, im->w);
line++;
memcpy(scan, buf + line * im->w * sizeof(RGBA), im->w * sizeof(RGBA));
return SQE_OK;
}
void fmt_codec::read_close()
{
finfo.meta.clear();
finfo.image.clear();
delete [] buf;
buf = NULL;
}
#include "fmt_codec_cd_func.h"