/* === S Y N F I G ========================================================= */
/*! \file trgt_imagemagick.cpp
** \brief ppm Target Module
**
** \legal
** $Id$
**
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2007 Chris Moore
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package 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
** General Public License for more details.
** \endlegal
**
** === N O T E S ===========================================================
**
** ========================================================================= */
/* === H E A D E R S ======================================================= */
#ifdef USING_PCH
# include "pch.h"
#else
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <synfig/localization.h>
#include <synfig/general.h>
#include <ETL/stringf>
#include "trgt_imagemagick.h"
#include <cstdio>
#include <sys/types.h>
#if HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#if HAVE_IO_H
#include <io.h>
#endif
#if HAVE_PROCESS_H
#include <process.h>
#endif
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include <unistd.h>
#include <algorithm>
#include <functional>
#include <ETL/clock>
#include <ETL/misc>
#endif
/* === M A C R O S ========================================================= */
using namespace synfig;
using namespace std;
using namespace etl;
#if defined(HAVE_FORK) && defined(HAVE_PIPE) && defined(HAVE_WAITPID)
#define UNIX_PIPE_TO_PROCESSES
#else
#define WIN32_PIPE_TO_PROCESSES
#endif
/* === G L O B A L S ======================================================= */
SYNFIG_TARGET_INIT(imagemagick_trgt);
SYNFIG_TARGET_SET_NAME(imagemagick_trgt,"imagemagick");
SYNFIG_TARGET_SET_EXT(imagemagick_trgt,"miff");
SYNFIG_TARGET_SET_VERSION(imagemagick_trgt,"0.1");
SYNFIG_TARGET_SET_CVS_ID(imagemagick_trgt,"$Id$");
/* === M E T H O D S ======================================================= */
imagemagick_trgt::imagemagick_trgt(const char *Filename, const synfig::TargetParam ¶ms):
pid(-1),
imagecount(),
multi_image(false),
file(NULL),
filename(Filename),
buffer(NULL),
color_buffer(NULL),
pf(),
sequence_separator(params.sequence_separator)
{ }
imagemagick_trgt::~imagemagick_trgt()
{
if(file){
#if defined(WIN32_PIPE_TO_PROCESSES)
pclose(file);
#elif defined(UNIX_PIPE_TO_PROCESSES)
fclose(file);
int status;
waitpid(pid,&status,0);
#endif
}
file=NULL;
delete [] buffer;
delete [] color_buffer;
}
bool
imagemagick_trgt::set_rend_desc(RendDesc *given_desc)
{
if(filename_extension(filename) == ".xpm")
pf=PF_RGB;
else
pf=PF_RGB|PF_A;
desc=*given_desc;
return true;
}
bool
imagemagick_trgt::init(synfig::ProgressCallback * /* cb */)
{
imagecount=desc.get_frame_start();
if(desc.get_frame_end()-desc.get_frame_start()>0)
multi_image=true;
delete [] buffer;
buffer=new unsigned char[pixel_size(pf)*desc.get_w()];
delete [] color_buffer;
color_buffer=new Color[desc.get_w()];
return true;
}
void
imagemagick_trgt::end_frame()
{
if(file)
{
fputc(0,file);
fflush(file);
#if defined(WIN32_PIPE_TO_PROCESSES)
pclose(file);
#elif defined(UNIX_PIPE_TO_PROCESSES)
fclose(file);
int status;
waitpid(pid,&status,0);
#endif
}
file=NULL;
imagecount++;
}
bool
imagemagick_trgt::start_frame(synfig::ProgressCallback *cb)
{
const char *msg=_("Unable to open pipe to imagemagick's convert utility");
string newfilename;
if (multi_image)
newfilename = (filename_sans_extension(filename) +
sequence_separator +
etl::strprintf("%04d",imagecount) +
filename_extension(filename));
else
newfilename = filename;
#if defined(WIN32_PIPE_TO_PROCESSES)
string command;
command=strprintf("convert -depth 8 -size %dx%d rgb%s:-[0] -density %dx%d \"%s\"\n",
desc.get_w(), desc.get_h(), // size
((pixel_size(pf) == 4) ? "a" : ""), // rgba or rgb?
round_to_int(desc.get_x_res()/39.3700787402), // density
round_to_int(desc.get_y_res()/39.3700787402),
newfilename.c_str());
file=popen(command.c_str(),POPEN_BINARY_WRITE_TYPE);
#elif defined(UNIX_PIPE_TO_PROCESSES)
int p[2];
if (pipe(p)) {
if(cb) cb->error(N_(msg));
else synfig::error(N_(msg));
return false;
};
pid = fork();
if (pid == -1) {
if(cb) cb->error(N_(msg));
else synfig::error(N_(msg));
return false;
}
if (pid == 0){
// Child process
// Close pipeout, not needed
close(p[1]);
// Dup pipeout to stdin
if( dup2( p[0], STDIN_FILENO ) == -1 ){
if(cb) cb->error(N_(msg));
else synfig::error(N_(msg));
return false;
}
// Close the unneeded pipeout
close(p[0]);
execlp("convert", "convert",
"-depth", "8",
"-size", strprintf("%dx%d", desc.get_w(), desc.get_h()).c_str(),
((pixel_size(pf) == 4) ? "rgba:-[0]" : "rgb:-[0]"),
"-density", strprintf("%dx%d", round_to_int(desc.get_x_res()/39.3700787402), round_to_int(desc.get_y_res()/39.3700787402)).c_str(),
newfilename.c_str(),
(const char *)NULL);
// We should never reach here unless the exec failed
if(cb) cb->error(N_(msg));
else synfig::error(N_(msg));
return false;
} else {
// Parent process
// Close pipein, not needed
close(p[0]);
// Save pipeout to file handle, will write to it later
file = fdopen(p[1], "wb");
}
#else
#error There are no known APIs for creating child processes
#endif
if(!file)
{
if(cb)cb->error(N_(msg));
else synfig::error(N_(msg));
return false;
}
//etl::yield();
return true;
}
Color *
imagemagick_trgt::start_scanline(int /*scanline*/)
{
return color_buffer;
}
bool
imagemagick_trgt::end_scanline(void)
{
if(!file)
return false;
color_to_pixelformat(buffer, color_buffer, pf, 0, desc.get_w());
if(!fwrite(buffer,pixel_size(pf),desc.get_w(),file))
return false;
return true;
}