1 /* === S Y N F I G ========================================================= */
3 ** \brief Bitmap Target
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
21 /* ========================================================================= */
23 /* === H E A D E R S ======================================================= */
25 #define SYNFIG_NO_ANGLE
35 #include <synfig/general.h>
42 /* === U S I N G =========================================================== */
44 using namespace synfig;
48 /* === I N F O ============================================================= */
50 SYNFIG_TARGET_INIT(bmp);
51 SYNFIG_TARGET_SET_NAME(bmp,"bmp");
52 SYNFIG_TARGET_SET_EXT(bmp,"bmp");
53 SYNFIG_TARGET_SET_VERSION(bmp,"0.1");
54 SYNFIG_TARGET_SET_CVS_ID(bmp,"$Id$");
56 /* === 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;
82 /* === M E T H O D S ======================================================= */
84 #ifdef WORDS_BIGENDIAN
85 inline long little_endian(const long &x)
88 char *big_e=(char *)&ret;
89 char *lit_e=(char *)&x;
96 inline short little_endian_short(const short &x)
99 char *big_e=(char *)&ret;
100 char *lit_e=(char *)&x;
106 #define little_endian(x) (x)
107 #define little_endian_short(x) (x)
110 bmp::bmp(const char *Filename)
127 delete [] color_buffer;
131 bmp::set_rend_desc(RendDesc *given_desc)
135 // Flip the image upside down,
136 // because bitmaps are upside down.
137 given_desc->set_flags(0);
138 Point tl=given_desc->get_tl();
139 Point br=given_desc->get_br();
140 Point::value_type tmp;
144 given_desc->set_tl(tl);
145 given_desc->set_br(br);
148 if(desc.get_frame_end()-desc.get_frame_start()>0)
151 imagecount=desc.get_frame_start();
164 delete [] color_buffer;
171 bmp::start_frame(synfig::ProgressCallback *callback)
173 int w=desc.get_w(),h=desc.get_h();
175 rowspan=4*((w*(channels(pf)*8)+31)/32);
178 String newfilename(filename_sans_extension(filename) +
179 etl::strprintf(".%04d",imagecount) +
180 filename_extension(filename));
181 file=fopen(newfilename.c_str(),POPEN_BINARY_WRITE_TYPE);
182 if(callback)callback->task(newfilename+_(" (animated)"));
186 file=fopen(filename.c_str(),POPEN_BINARY_WRITE_TYPE);
187 if(callback)callback->task(filename);
192 if(callback)callback->error(_("Unable to open file"));
193 else synfig::error(_("Unable to open file"));
197 BITMAPFILEHEADER fileheader;
198 BITMAPINFOHEADER infoheader;
200 fileheader.bfType[0]='B';
201 fileheader.bfType[1]='M';
202 fileheader.bfSize=little_endian(sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+rowspan*h);
203 fileheader.bfReserved1=0;
204 fileheader.bfReserved2=0;
205 fileheader.bfOffsetBits=little_endian(sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)-2);
207 infoheader.biSize=little_endian(40);
208 infoheader.biWidth=little_endian(w);
209 infoheader.biHeight=little_endian(h);
210 infoheader.biPlanes=little_endian_short((short)1);
211 infoheader.biBitCount=little_endian_short((short)(channels(pf)*8));
212 infoheader.biCompression=little_endian(0);
213 infoheader.biSizeImage=little_endian(0);
214 infoheader.biXPelsPerMeter=little_endian((int)rend_desc().get_x_res());
215 infoheader.biYPelsPerMeter=little_endian((int)rend_desc().get_y_res()); // pels per meter...?
216 infoheader.biClrUsed=little_endian(0);
217 infoheader.biClrImportant=little_endian(0);
221 if(!fwrite(&fileheader.bfSize,sizeof(BITMAPFILEHEADER)-4,1,file))
223 if(callback)callback->error(_("Unable to write file header to file"));
224 else synfig::error(_("Unable to write file header to file"));
228 if(!fwrite(&infoheader,sizeof(BITMAPINFOHEADER),1,file))
230 if(callback)callback->error(_("Unable to write info header"));
231 else synfig::error(_("Unable to write info header"));
236 buffer=new unsigned char[rowspan];
238 delete [] color_buffer;
239 color_buffer=new Color[desc.get_w()];
245 bmp::start_scanline(int /*scanline*/)
256 convert_color_format(buffer, color_buffer, desc.get_w(), pf, gamma());
258 if(!fwrite(buffer,1,rowspan,file))