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Merge branch 'stdio'
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@artemp
artemp committed Jun 24, 2014
2 parents ebde535 + 11c2aad commit bfac024
Showing 1 changed file with 46 additions and 44 deletions.
90 changes: 46 additions & 44 deletions src/font_engine_freetype.cpp
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Expand Up @@ -102,17 +102,17 @@ bool freetype_engine::is_font_file(std::string const& file_name)
boost::algorithm::ends_with(fn,std::string(".dfont"));
}

unsigned long ft_read_cb(FT_Stream stream, unsigned long offset, unsigned char *buffer, unsigned long count) {
if (count <= 0) return count;
std::ifstream * file = static_cast<std::ifstream *>(stream->descriptor.pointer);
file->seekg(offset, std::ios::beg);
file->read((char*)buffer, count);
return file->gcount();
unsigned long ft_read_cb(FT_Stream stream, unsigned long offset, unsigned char *buffer, unsigned long count)
{
if (count <= 0) return 0;
FILE * file = static_cast<FILE *>(stream->descriptor.pointer);
std::fseek (file , offset , SEEK_SET);
return std::fread ((char*)buffer, 1, count, file);
}

void ft_close_cb(FT_Stream stream) {
std::ifstream * file = static_cast<std::ifstream *>(stream->descriptor.pointer);
file->close();
void ft_close_cb(FT_Stream stream)
{
std::fclose (static_cast<std::FILE *>(stream->descriptor.pointer));
}

bool freetype_engine::register_font(std::string const& file_name)
Expand All @@ -133,29 +133,25 @@ bool freetype_engine::register_font_impl(std::string const& file_name, FT_Librar
{
char buffer[512];
#ifdef _WINDOWS
std::ifstream file(mapnik::utf8_to_utf16(file_name), std::ios::binary);
FILE * file = _wfopen(mapnik::utf8_to_utf16(file_name).c_str(),"rb");
#else
std::ifstream file(file_name.c_str(), std::ios::binary);
FILE * file = std::fopen(file_name.c_str(),"rb");
#endif
if (!file.good()) return false;
file.rdbuf()->pubsetbuf(buffer, 512);

if (file == nullptr) return false;

FT_Face face = 0;
FT_Open_Args args;
FT_StreamRec streamRec;
memset(&args, 0, sizeof(args));
memset(&streamRec, 0, sizeof(streamRec));

std::streampos beg = file.tellg();
file.seekg (0, std::ios::end);
std::streampos end = file.tellg();
std::size_t file_size = end - beg;
file.seekg (0, std::ios::beg);

fseek(file, 0, SEEK_END);
std::size_t file_size = std::ftell(file);
fseek(file, 0, SEEK_SET);
streamRec.base = 0;
streamRec.pos = 0;
streamRec.size = file_size;
streamRec.descriptor.pointer = &file;
streamRec.descriptor.pointer = file;
streamRec.read = ft_read_cb;
streamRec.close = ft_close_cb;
args.flags = FT_OPEN_STREAM;
Expand All @@ -165,15 +161,13 @@ bool freetype_engine::register_font_impl(std::string const& file_name, FT_Librar
// some font files have multiple fonts in a file
// the count is in the 'root' face library[0]
// see the FT_FaceRec in freetype.h
for ( int i = 0; face == 0 || i < num_faces; i++ ) {
for ( int i = 0; face == 0 || i < num_faces; ++i )
{
// if face is null then this is the first face
FT_Error error = FT_Open_Face(library, &args, i, &face);
if (error)
{
break;
}
if (error) break;
// store num_faces locally, after FT_Done_Face it can not be accessed any more
if (!num_faces)
if (num_faces == 0)
num_faces = face->num_faces;
// some fonts can lack names, skip them
// http://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#FT_FaceRec
Expand All @@ -200,10 +194,8 @@ bool freetype_engine::register_font_impl(std::string const& file_name, FT_Librar

MAPNIK_LOG_ERROR(font_engine_freetype) << "register_font: " << s.str();
}
if (face) FT_Done_Face(face);
}

if (face) FT_Done_Face(face);

return success;
}

Expand Down Expand Up @@ -327,21 +319,31 @@ face_ptr freetype_engine::create_face(std::string const& family_name)
#ifdef MAPNIK_THREADSAFE
mapnik::scoped_lock lock(mutex_);
#endif
std::ifstream is(itr->second.second.c_str() , std::ios::binary);
std::string buffer((std::istreambuf_iterator<char>(is)),
std::istreambuf_iterator<char>());
auto result = memory_fonts_.insert(std::make_pair(itr->second.second, buffer));

FT_Error error = FT_New_Memory_Face (library_,
reinterpret_cast<FT_Byte const*>(result.first->second.c_str()),
static_cast<FT_Long>(buffer.size()),
itr->second.first,
&face);
if (!error) return std::make_shared<font_face>(face);
else

#ifdef _WINDOWS
std::unique_ptr<std::FILE, int (*)(std::FILE *)> file(_wfopen(mapnik::utf8_to_utf16(itr->second.second).c_str(),"rb"), fclose);
#else
std::unique_ptr<std::FILE, int (*)(std::FILE *)> file(std::fopen(itr->second.second.c_str(),"rb"), std::fclose);
#endif
if (file != nullptr)
{
// we can't load font, erase it.
memory_fonts_.erase(result.first);
std::fseek(file.get(), 0, SEEK_END);
std::size_t file_size = std::ftell(file.get());
std::fseek(file.get(), 0, SEEK_SET);
std::unique_ptr<char[]> buffer(new char[file_size]);
std::fread(buffer.get(), file_size, 1, file.get());
auto result = memory_fonts_.insert(std::make_pair(itr->second.second, std::string(buffer.get(),file_size)));
FT_Error error = FT_New_Memory_Face (library_,
reinterpret_cast<FT_Byte const*>(result.first->second.c_str()),
static_cast<FT_Long>(result.first->second.size()),
itr->second.first,
&face);
if (!error) return std::make_shared<font_face>(face);
else
{
// we can't load font, erase it.
memory_fonts_.erase(result.first);
}
}
}
}
Expand Down

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