/* === S Y N F I G ========================================================= */
/*! \file trgt_bmp.cpp
** \brief Bitmap Target
**
** $Id$
**
** \legal
** 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
*/
/* ========================================================================= */
/* === H E A D E R S ======================================================= */
#ifdef USING_PCH
# include "pch.h"
#else
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "trgt_bmp.h"
#include <synfig/general.h>
#include <synfig/localization.h>
#include <cstdio>
#include <algorithm>
#include <functional>
#endif
/* === U S I N G =========================================================== */
using namespace synfig;
using namespace std;
using namespace etl;
/* === I N F O ============================================================= */
SYNFIG_TARGET_INIT(bmp);
SYNFIG_TARGET_SET_NAME(bmp,"bmp");
SYNFIG_TARGET_SET_EXT(bmp,"bmp");
SYNFIG_TARGET_SET_VERSION(bmp,"0.1");
SYNFIG_TARGET_SET_CVS_ID(bmp,"$Id$");
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig {
/*struct BITMAPFILEHEADER
{
unsigned char bfType[2];
unsigned long bfSize;
unsigned short bfReserved1;
unsigned short bfReserved2;
unsigned long bfOffsetBits;
};
struct BITMAPINFOHEADER
{
unsigned long biSize;
long biWidth;
long biHeight;
unsigned short biPlanes;
unsigned short biBitCount;
unsigned long biCompression;
unsigned long biSizeImage;
long biXPelsPerMeter;
long biYPelsPerMeter;
unsigned long biClrUsed;
unsigned long biClrImportant;
};*/
#pragma pack(push,1)
namespace BITMAP
{
typedef unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef int int32_t;
typedef unsigned int uint32_t;
struct FILEHEADER
{
uint8_t bfType[2];
uint32_t bfSize;
uint16_t bfReserved1;
uint16_t bfReserved2;
uint32_t bfOffsetBits;
};
struct INFOHEADER
{
uint32_t biSize;
int32_t biWidth;
int32_t biHeight;
uint16_t biPlanes;
uint16_t biBitCount;
uint32_t biCompression;
uint32_t biSizeImage;
int32_t biXPelsPerMeter;
int32_t biYPelsPerMeter;
uint32_t biClrUsed;
uint32_t biClrImportant;
};
}
#pragma pack(pop)
}
/* === M E T H O D S ======================================================= */
#ifdef WORDS_BIGENDIAN
inline long little_endian(const long &x)
{
long ret;
char *big_e=(char *)&ret;
char *lit_e=(char *)&x;
big_e[0]=lit_e[3];
big_e[1]=lit_e[2];
big_e[2]=lit_e[1];
big_e[3]=lit_e[0];
return ret;
}
inline short little_endian_short(const short &x)
{
short ret;
char *big_e=(char *)&ret;
char *lit_e=(char *)&x;
big_e[0]=lit_e[1];
big_e[1]=lit_e[0];
return ret;
}
#else
#define little_endian(x) (x)
#define little_endian_short(x) (x)
#endif
bmp::bmp(const char *Filename, const synfig::TargetParam& params):
rowspan(),
imagecount(),
multi_image(false),
file(NULL),
filename(Filename),
buffer(NULL),
color_buffer(NULL),
pf()
{
set_alpha_mode(TARGET_ALPHA_MODE_FILL);
sequence_separator=params.sequence_separator;
}
bmp::~bmp()
{
if(file)
fclose(file);
file=NULL;
delete [] buffer;
delete [] color_buffer;
}
bool
bmp::set_rend_desc(RendDesc *given_desc)
{
pf=PF_BGR;
// Flip the image upside down,
// because bitmaps are upside down.
given_desc->set_flags(0);
Point tl=given_desc->get_tl();
Point br=given_desc->get_br();
Point::value_type tmp;
tmp=tl[1];
tl[1]=br[1];
br[1]=tmp;
given_desc->set_tl(tl);
given_desc->set_br(br);
desc=*given_desc;
if(desc.get_frame_end()-desc.get_frame_start()>0)
{
multi_image=true;
imagecount=desc.get_frame_start();
}
else
multi_image=false;
return true;
}
void
bmp::end_frame()
{
if(file)
fclose(file);
delete [] color_buffer;
color_buffer=0;
file=NULL;
imagecount++;
}
bool
bmp::start_frame(synfig::ProgressCallback *callback)
{
int w=desc.get_w(),h=desc.get_h();
rowspan=4*((w*(pixel_size(pf)*8)+31)/32);
if(multi_image)
{
String newfilename(filename_sans_extension(filename) +
sequence_separator +
etl::strprintf("%04d",imagecount) +
filename_extension(filename));
file=fopen(newfilename.c_str(),POPEN_BINARY_WRITE_TYPE);
if(callback)callback->task(newfilename+_(" (animated)"));
}
else
{
file=fopen(filename.c_str(),POPEN_BINARY_WRITE_TYPE);
if(callback)callback->task(filename);
}
if(!file)
{
if(callback)callback->error(_("Unable to open file"));
else synfig::error(_("Unable to open file"));
return false;
}
synfig::BITMAP::FILEHEADER fileheader;
synfig::BITMAP::INFOHEADER infoheader;
fileheader.bfType[0]='B';
fileheader.bfType[1]='M';
fileheader.bfSize=little_endian(sizeof(synfig::BITMAP::FILEHEADER)+sizeof(synfig::BITMAP::INFOHEADER)+rowspan*h);
fileheader.bfReserved1=0;
fileheader.bfReserved2=0;
fileheader.bfOffsetBits=little_endian(sizeof(synfig::BITMAP::FILEHEADER)+sizeof(synfig::BITMAP::INFOHEADER));
infoheader.biSize=little_endian(sizeof(synfig::BITMAP::INFOHEADER));
infoheader.biWidth=little_endian(w);
infoheader.biHeight=little_endian(h);
infoheader.biPlanes=little_endian_short((short)1);
infoheader.biBitCount=little_endian_short((short)(pixel_size(pf)*8));
infoheader.biCompression=little_endian(0);
infoheader.biSizeImage=little_endian(0);
infoheader.biXPelsPerMeter=little_endian((int)rend_desc().get_x_res());
infoheader.biYPelsPerMeter=little_endian((int)rend_desc().get_y_res()); // pels per meter...?
infoheader.biClrUsed=little_endian(0);
infoheader.biClrImportant=little_endian(0);
//fprintf(file,"BM");
//if (!fwrite(&fileheader.bfSize,sizeof(synfig::BITMAPFILEHEADER)-4,1,file))
if (!fwrite(&fileheader, sizeof(synfig::BITMAP::FILEHEADER), 1, file))
{
if(callback)callback->error(_("Unable to write file header to file"));
else synfig::error(_("Unable to write file header to file"));
return false;
}
if (!fwrite(&infoheader, sizeof(synfig::BITMAP::INFOHEADER), 1, file))
{
if(callback)callback->error(_("Unable to write info header"));
else synfig::error(_("Unable to write info header"));
return false;
}
delete [] buffer;
buffer=new unsigned char[rowspan];
delete [] color_buffer;
color_buffer=new Color[desc.get_w()];
return true;
}
Color *
bmp::start_scanline(int /*scanline*/)
{
return color_buffer;
}
bool
bmp::end_scanline()
{
if(!file)
return false;
color_to_pixelformat(buffer, color_buffer, pf, 0, desc.get_w());
if(!fwrite(buffer,1,rowspan,file))
return false;
return true;
}