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 FileContainerTemporary::open_temporary(const std::string &filename_base)
{
if (is_opened()) return false;
FileSystem::ReadStreamHandle stream =
file_system_->get_read_stream(
get_temporary_directory()
+ filename_base);
if (!stream) return false;
stream = new ZReadStream(stream);
xmlpp::DomParser parser;
parser.parse_stream(*stream);
stream.reset();
if (!parser) return false;
xmlpp::Element *root = parser.get_document()->get_root_node();
if (root->get_name() != "temporary-container") return false;
xmlpp::Element::NodeList list = root->get_children();
for(xmlpp::Element::NodeList::iterator i = list.begin(); i != list.end(); i++)
{
if ((*i)->get_name() == "container-filename")
container_filename_ = get_xml_node_text(*i);
if ((*i)->get_name() == "files")
{
xmlpp::Element::NodeList files_list = (*i)->get_children();
for(xmlpp::Element::NodeList::iterator j = files_list.begin(); j != files_list.end(); j++)
{
if ((*j)->get_name() == "entry")
{
FileInfo info;
xmlpp::Element::NodeList fields_list = (*j)->get_children();
for(xmlpp::Element::NodeList::iterator k = fields_list.begin(); k != fields_list.end(); k++)
{
if ((*k)->get_name() == "name")
info.name = get_xml_node_text(*k);
if ((*k)->get_name() == "tmp-basename")
info.tmp_filename = get_xml_node_text(*k);
if ((*k)->get_name() == "is-directory")
info.is_directory = get_xml_node_text(*k) == "true";
if ((*k)->get_name() == "is-removed")
info.is_removed = get_xml_node_text(*k) == "true";
}
if (!info.tmp_filename.empty())
info.tmp_filename = get_temporary_directory() + info.tmp_filename;
info.split_name();
files_[info.name] = info;
}
}
}
}
if (!container_filename_.empty() && !container_->open(container_filename_))
{
container_filename_.clear();
files_.clear();
return false;
}
temporary_filename_base_ = filename_base;
is_opened_ = true;
return true;
}