1 /* === S Y N F I G ========================================================= */
3 ** \brief Bitmap Target
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2007 Chris Moore
11 ** This package is free software; you can redistribute it and/or
12 ** modify it under the terms of the GNU General Public License as
13 ** published by the Free Software Foundation; either version 2 of
14 ** the License, or (at your option) any later version.
16 ** This package is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ** General Public License for more details.
22 /* ========================================================================= */
24 /* === H E A D E R S ======================================================= */
34 #include <synfig/general.h>
41 /* === U S I N G =========================================================== */
43 using namespace synfig;
47 /* === I N F O ============================================================= */
49 SYNFIG_TARGET_INIT(bmp);
50 SYNFIG_TARGET_SET_NAME(bmp,"bmp");
51 SYNFIG_TARGET_SET_EXT(bmp,"bmp");
52 SYNFIG_TARGET_SET_VERSION(bmp,"0.1");
53 SYNFIG_TARGET_SET_CVS_ID(bmp,"$Id$");
55 /* === C L A S S E S & S T R U C T S ======================================= */
58 struct BITMAPFILEHEADER
60 unsigned char bfType[2];
62 unsigned short bfReserved1;
63 unsigned short bfReserved2;
64 unsigned long bfOffsetBits;
67 struct BITMAPINFOHEADER
72 unsigned short biPlanes;
73 unsigned short biBitCount;
74 unsigned long biCompression;
75 unsigned long biSizeImage;
78 unsigned long biClrUsed;
79 unsigned long biClrImportant;
83 /* === M E T H O D S ======================================================= */
85 #ifdef WORDS_BIGENDIAN
86 inline long little_endian(const long &x)
89 char *big_e=(char *)&ret;
90 char *lit_e=(char *)&x;
97 inline short little_endian_short(const short &x)
100 char *big_e=(char *)&ret;
101 char *lit_e=(char *)&x;
107 #define little_endian(x) (x)
108 #define little_endian_short(x) (x)
111 bmp::bmp(const char *Filename, const synfig::TargetParam& /* params */)
128 delete [] color_buffer;
132 bmp::set_rend_desc(RendDesc *given_desc)
136 // Flip the image upside down,
137 // because bitmaps are upside down.
138 given_desc->set_flags(0);
139 Point tl=given_desc->get_tl();
140 Point br=given_desc->get_br();
141 Point::value_type tmp;
145 given_desc->set_tl(tl);
146 given_desc->set_br(br);
149 if(desc.get_frame_end()-desc.get_frame_start()>0)
152 imagecount=desc.get_frame_start();
165 delete [] color_buffer;
172 bmp::start_frame(synfig::ProgressCallback *callback)
174 int w=desc.get_w(),h=desc.get_h();
176 rowspan=4*((w*(channels(pf)*8)+31)/32);
179 String newfilename(filename_sans_extension(filename) +
180 etl::strprintf(".%04d",imagecount) +
181 filename_extension(filename));
182 file=fopen(newfilename.c_str(),POPEN_BINARY_WRITE_TYPE);
183 if(callback)callback->task(newfilename+_(" (animated)"));
187 file=fopen(filename.c_str(),POPEN_BINARY_WRITE_TYPE);
188 if(callback)callback->task(filename);
193 if(callback)callback->error(_("Unable to open file"));
194 else synfig::error(_("Unable to open file"));
198 synfig::BITMAPFILEHEADER fileheader;
199 synfig::BITMAPINFOHEADER infoheader;
201 fileheader.bfType[0]='B';
202 fileheader.bfType[1]='M';
203 fileheader.bfSize=little_endian(sizeof(synfig::BITMAPFILEHEADER)+sizeof(synfig::BITMAPINFOHEADER)+rowspan*h);
204 fileheader.bfReserved1=0;
205 fileheader.bfReserved2=0;
206 fileheader.bfOffsetBits=little_endian(sizeof(synfig::BITMAPFILEHEADER)+sizeof(synfig::BITMAPINFOHEADER)-2);
208 infoheader.biSize=little_endian(40);
209 infoheader.biWidth=little_endian(w);
210 infoheader.biHeight=little_endian(h);
211 infoheader.biPlanes=little_endian_short((short)1);
212 infoheader.biBitCount=little_endian_short((short)(channels(pf)*8));
213 infoheader.biCompression=little_endian(0);
214 infoheader.biSizeImage=little_endian(0);
215 infoheader.biXPelsPerMeter=little_endian((int)rend_desc().get_x_res());
216 infoheader.biYPelsPerMeter=little_endian((int)rend_desc().get_y_res()); // pels per meter...?
217 infoheader.biClrUsed=little_endian(0);
218 infoheader.biClrImportant=little_endian(0);
222 if(!fwrite(&fileheader.bfSize,sizeof(synfig::BITMAPFILEHEADER)-4,1,file))
224 if(callback)callback->error(_("Unable to write file header to file"));
225 else synfig::error(_("Unable to write file header to file"));
229 if(!fwrite(&infoheader,sizeof(synfig::BITMAPINFOHEADER),1,file))
231 if(callback)callback->error(_("Unable to write info header"));
232 else synfig::error(_("Unable to write info header"));
237 buffer=new unsigned char[rowspan];
239 delete [] color_buffer;
240 color_buffer=new Color[desc.get_w()];
246 bmp::start_scanline(int /*scanline*/)
257 convert_color_format(buffer, color_buffer, desc.get_w(), pf, gamma());
259 if(!fwrite(buffer,1,rowspan,file))