cairo_png_mptr::cairo_png_mptr(const synfig::FileSystem::Identifier &identifier): CairoImporter(identifier) { FileSystem::ReadStreamHandle stream = identifier.get_read_stream(); csurface_=cairo_image_surface_create_from_png_stream(read_callback, stream.get()); stream.reset(); if(cairo_surface_status(csurface_)) { throw strprintf("Unable to physically open %s",identifier.filename.c_str()); cairo_surface_destroy(csurface_); csurface_=NULL; return; } CairoSurface cairo_s; cairo_s.set_cairo_surface(csurface_); if(!cairo_s.map_cairo_image()) return; int w=cairo_s.get_w(); int h=cairo_s.get_h(); for(int y=0; y<h; y++) for(int x=0; x<w; x++) { CairoColor c=cairo_s[y][x]; float a=c.get_alpha(); unsigned char r=(unsigned char)(a*gamma().r_F32_to_F32(c.get_r()/a)); unsigned char g=(unsigned char)(a*gamma().g_F32_to_F32(c.get_g()/a)); unsigned char b=(unsigned char)(a*gamma().b_F32_to_F32(c.get_b()/a)); c.set_r(r); c.set_g(g); c.set_b(b); cairo_s[y][x]=c; } cairo_s.unmap_cairo_image(); }
bool bmp_mptr::get_frame(synfig::Surface &surface, const synfig::RendDesc &/*renddesc*/, Time /*time*/, synfig::ProgressCallback *cb) { FileSystem::ReadStreamHandle stream = identifier.get_read_stream(); if(!stream) { if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),identifier.filename.c_str())); else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),identifier.filename.c_str())); return false; } synfig::BITMAP::FILEHEADER fileheader; synfig::BITMAP::INFOHEADER infoheader; if (!stream->read_variable(fileheader.bfType) || fileheader.bfType[0] != 'B' || fileheader.bfType[1] != 'M') { if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),identifier.filename.c_str())); else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),identifier.filename.c_str())); return false; } if(!stream->read_whole_block(&fileheader.bfSize, sizeof(synfig::BITMAP::FILEHEADER)-2)) { String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAP::FILEHEADER from %s"),identifier.filename.c_str())); if(cb)cb->error(str); else synfig::error(str); return false; } if(!stream->read_whole_block(&infoheader, sizeof(synfig::BITMAP::INFOHEADER))) { String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAP::INFOHEADER from %s"),identifier.filename.c_str())); if(cb)cb->error(str); else synfig::error(str); return false; } int offset=little_endian(fileheader.bfOffsetBits); if(offset!=sizeof(synfig::BITMAP::FILEHEADER)+sizeof(synfig::BITMAP::INFOHEADER)) { String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAP::FILEHEADER in %s. (bfOffsetBits=%d, should be %d)"),identifier.filename.c_str(),offset,sizeof(synfig::BITMAP::FILEHEADER)+sizeof(synfig::BITMAP::INFOHEADER))); if(cb)cb->error(str); else synfig::error(str); return false; } if(little_endian(infoheader.biSize)!=sizeof(synfig::BITMAP::INFOHEADER)) { String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAP::INFOHEADER in %s. (biSize=%d, should be %d)"),identifier.filename.c_str(),little_endian(infoheader.biSize),sizeof(synfig::BITMAP::INFOHEADER))); if(cb)cb->error(str); else synfig::error(str); return false; } int w,h,bit_count; w=little_endian(infoheader.biWidth); h=little_endian(infoheader.biHeight); bit_count=little_endian_short(infoheader.biBitCount); synfig::warning("w:%d\n",w); synfig::warning("h:%d\n",h); synfig::warning("bit_count:%d\n",bit_count); if(little_endian(infoheader.biCompression)) { if(cb)cb->error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported"))); else synfig::error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported"))); return false; } if(bit_count!=24 && bit_count!=32) { if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count)); else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count)); return false; } int x; int y; surface.set_wh(w,h); for(y=0;y<surface.get_h();y++) for(x=0;x<surface.get_w();x++) { // float b=(float)(unsigned char)stream->getc()*(1.0/255.0); // float g=(float)(unsigned char)stream->getc()*(1.0/255.0); // float r=(float)(unsigned char)stream->getc()*(1.0/255.0); float b=gamma().b_U8_to_F32((unsigned char)stream->get()); float g=gamma().g_U8_to_F32((unsigned char)stream->get()); float r=gamma().r_U8_to_F32((unsigned char)stream->get()); surface[h-y-1][x]=Color( r, g, b, 1.0 ); if(bit_count==32) stream->get(); } return true; }