1 /* === S Y N F I G ========================================================= */
3 ** \brief bmp Target Module
6 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
8 ** This package is free software; you can redistribute it and/or
9 ** modify it under the terms of the GNU General Public License as
10 ** published by the Free Software Foundation; either version 2 of
11 ** the License, or (at your option) any later version.
13 ** This package is distributed in the hope that it will be useful,
14 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 ** General Public License for more details.
19 ** === N O T E S ===========================================================
21 ** ========================================================================= */
23 /* === H E A D E R S ======================================================= */
25 #define SYNFIG_NO_ANGLE
35 #include <synfig/general.h>
36 #include <synfig/surface.h>
42 /* === U S I N G =========================================================== */
44 using namespace synfig;
48 /* === G L O B A L S ======================================================= */
50 SYNFIG_IMPORTER_INIT(bmp_mptr);
51 SYNFIG_IMPORTER_SET_NAME(bmp_mptr,"bmp");
52 SYNFIG_IMPORTER_SET_EXT(bmp_mptr,"bmp");
53 SYNFIG_IMPORTER_SET_VERSION(bmp_mptr,"0.1");
54 SYNFIG_IMPORTER_SET_CVS_ID(bmp_mptr,"$Id: mptr_bmp.cpp,v 1.1.1.1 2005/01/04 01:23:10 darco Exp $");
56 /* === M E T H O D 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 #ifdef WORDS_BIGENDIAN
83 inline long little_endian(const long &x)
86 char *big_e=(char *)&ret;
87 char *lit_e=(char *)&x;
94 inline short little_endian_short(const short &x)
97 char *big_e=(char *)&ret;
98 char *lit_e=(char *)&x;
104 #define little_endian(x) (x)
105 #define little_endian_short(x) (x)
113 bmp_mptr::bmp_mptr(const char *file)
118 bmp_mptr::~bmp_mptr()
123 bmp_mptr::get_frame(synfig::Surface &surface,Time time, synfig::ProgressCallback *cb)
125 FILE *file=fopen(filename.c_str(),"rb");
128 if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),filename.c_str()));
129 else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),filename.c_str()));
133 BITMAPFILEHEADER fileheader;
134 BITMAPINFOHEADER infoheader;
135 char b_char=fgetc(file);
136 char m_char=fgetc(file);
138 if(b_char!='B' || m_char!='M')
140 if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),filename.c_str()));
141 else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),filename.c_str()));
145 if(fread(&fileheader.bfSize, 1, sizeof(BITMAPFILEHEADER)-4, file)!=sizeof(BITMAPFILEHEADER)-4)
147 String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAPFILEHEADER from %s"),filename.c_str()));
148 if(cb)cb->error(str);
149 else synfig::error(str);
153 if(fread(&infoheader, 1, sizeof(BITMAPINFOHEADER), file)!=sizeof(BITMAPINFOHEADER))
155 String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAPINFOHEADER from %s"),filename.c_str()));
156 if(cb)cb->error(str);
157 else synfig::error(str);
161 int offset=little_endian(fileheader.bfOffsetBits);
163 if(offset!=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)-2)
165 String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAPFILEHEADER in %s. (bfOffsetBits=%d, should be %d)"),filename.c_str(),offset,sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)-2));
166 if(cb)cb->error(str);
167 else synfig::error(str);
171 if(little_endian(infoheader.biSize)!=little_endian(40))
173 String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAPINFOHEADER in %s. (biSize=%d, should be 40)"),filename.c_str(),little_endian(infoheader.biSize)));
174 if(cb)cb->error(str);
175 else synfig::error(str);
181 w=little_endian(infoheader.biWidth);
182 h=little_endian(infoheader.biHeight);
183 bit_count=little_endian_short(infoheader.biBitCount);
185 synfig::warning("w:%d\n",w);
186 synfig::warning("h:%d\n",h);
187 synfig::warning("bit_count:%d\n",bit_count);
189 if(little_endian(infoheader.biCompression))
191 if(cb)cb->error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported")));
192 else synfig::error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported")));
196 if(bit_count!=24 && bit_count!=32)
198 if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count));
199 else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count));
206 for(y=0;y<surface.get_h();y++)
207 for(x=0;x<surface.get_w();x++)
209 // float b=(float)(unsigned char)fgetc(file)*(1.0/255.0);
210 // float g=(float)(unsigned char)fgetc(file)*(1.0/255.0);
211 // float r=(float)(unsigned char)fgetc(file)*(1.0/255.0);
212 float b=gamma().b_U8_to_F32((unsigned char)fgetc(file));
213 float g=gamma().g_U8_to_F32((unsigned char)fgetc(file));
214 float r=gamma().r_U8_to_F32((unsigned char)fgetc(file));
216 surface[h-y-1][x]=Color(