1 /* === S Y N F I G ========================================================= */
3 ** \brief bmp Target Module
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 ** === N O T E S ===========================================================
23 ** ========================================================================= */
25 /* === H E A D E R S ======================================================= */
27 #define SYNFIG_NO_ANGLE
37 #include <synfig/general.h>
38 #include <synfig/surface.h>
44 /* === U S I N G =========================================================== */
46 using namespace synfig;
50 /* === G L O B A L S ======================================================= */
52 SYNFIG_IMPORTER_INIT(bmp_mptr);
53 SYNFIG_IMPORTER_SET_NAME(bmp_mptr,"bmp");
54 SYNFIG_IMPORTER_SET_EXT(bmp_mptr,"bmp");
55 SYNFIG_IMPORTER_SET_VERSION(bmp_mptr,"0.1");
56 SYNFIG_IMPORTER_SET_CVS_ID(bmp_mptr,"$Id$");
58 /* === M E T H O D S ======================================================= */
61 struct BITMAPFILEHEADER
63 unsigned char bfType[2];
65 unsigned short bfReserved1;
66 unsigned short bfReserved2;
67 unsigned long bfOffsetBits;
70 struct BITMAPINFOHEADER
75 unsigned short biPlanes;
76 unsigned short biBitCount;
77 unsigned long biCompression;
78 unsigned long biSizeImage;
81 unsigned long biClrUsed;
82 unsigned long biClrImportant;
87 #ifdef WORDS_BIGENDIAN
88 inline long little_endian(const long &x)
91 char *big_e=(char *)&ret;
92 char *lit_e=(char *)&x;
99 inline short little_endian_short(const short &x)
102 char *big_e=(char *)&ret;
103 char *lit_e=(char *)&x;
109 #define little_endian(x) (x)
110 #define little_endian_short(x) (x)
118 bmp_mptr::bmp_mptr(const char *file)
123 bmp_mptr::~bmp_mptr()
128 bmp_mptr::get_frame(synfig::Surface &surface,Time /*time*/, synfig::ProgressCallback *cb)
130 FILE *file=fopen(filename.c_str(),"rb");
133 if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),filename.c_str()));
134 else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),filename.c_str()));
138 synfig::BITMAPFILEHEADER fileheader;
139 synfig::BITMAPINFOHEADER infoheader;
140 char b_char=fgetc(file);
141 char m_char=fgetc(file);
143 if(b_char!='B' || m_char!='M')
145 if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),filename.c_str()));
146 else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),filename.c_str()));
150 if(fread(&fileheader.bfSize, 1, sizeof(synfig::BITMAPFILEHEADER)-4, file)!=sizeof(synfig::BITMAPFILEHEADER)-4)
152 String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAPFILEHEADER from %s"),filename.c_str()));
153 if(cb)cb->error(str);
154 else synfig::error(str);
158 if(fread(&infoheader, 1, sizeof(synfig::BITMAPINFOHEADER), file)!=sizeof(synfig::BITMAPINFOHEADER))
160 String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAPINFOHEADER from %s"),filename.c_str()));
161 if(cb)cb->error(str);
162 else synfig::error(str);
166 int offset=little_endian(fileheader.bfOffsetBits);
168 if(offset!=sizeof(synfig::BITMAPFILEHEADER)+sizeof(synfig::BITMAPINFOHEADER)-2)
170 String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAPFILEHEADER in %s. (bfOffsetBits=%d, should be %d)"),filename.c_str(),offset,sizeof(synfig::BITMAPFILEHEADER)+sizeof(synfig::BITMAPINFOHEADER)-2));
171 if(cb)cb->error(str);
172 else synfig::error(str);
176 if(little_endian(infoheader.biSize)!=little_endian(40))
178 String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAPINFOHEADER in %s. (biSize=%d, should be 40)"),filename.c_str(),little_endian(infoheader.biSize)));
179 if(cb)cb->error(str);
180 else synfig::error(str);
186 w=little_endian(infoheader.biWidth);
187 h=little_endian(infoheader.biHeight);
188 bit_count=little_endian_short(infoheader.biBitCount);
190 synfig::warning("w:%d\n",w);
191 synfig::warning("h:%d\n",h);
192 synfig::warning("bit_count:%d\n",bit_count);
194 if(little_endian(infoheader.biCompression))
196 if(cb)cb->error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported")));
197 else synfig::error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported")));
201 if(bit_count!=24 && bit_count!=32)
203 if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count));
204 else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count));
211 for(y=0;y<surface.get_h();y++)
212 for(x=0;x<surface.get_w();x++)
214 // float b=(float)(unsigned char)fgetc(file)*(1.0/255.0);
215 // float g=(float)(unsigned char)fgetc(file)*(1.0/255.0);
216 // float r=(float)(unsigned char)fgetc(file)*(1.0/255.0);
217 float b=gamma().b_U8_to_F32((unsigned char)fgetc(file));
218 float g=gamma().g_U8_to_F32((unsigned char)fgetc(file));
219 float r=gamma().r_U8_to_F32((unsigned char)fgetc(file));
221 surface[h-y-1][x]=Color(