sij/mapnik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

TIFF I/O - use memory mapping in tiff_reader.cpp when MAPNIK_MEMORY_MAPPED_FILE is defined.

Browse source
This commit is contained in:
artemp 2017-05-22 16:29:22 +02:00
parent 34a622f48e
commit 3a475517c0
2 changed files with 39 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
src/tiff_reader.cpp
View file

@ -113,11 +113,13 @@ struct tiff_io_traits
using input_stream_type = std::istream;
};
#if defined(MAPNIK_MEMORY_MAPPED_FILE)
template <>
struct tiff_io_traits<boost::interprocess::ibufferstream>
{
using input_stream_type = boost::interprocess::ibufferstream;
};
#endif
}
template <typename T>
@ -208,8 +210,11 @@ namespace
image_reader* create_tiff_reader(std::string const& filename)
{
//return new tiff_reader<std::filebuf>(filename);
#if defined(MAPNIK_MEMORY_MAPPED_FILE)
return new tiff_reader<boost::interprocess::ibufferstream>(filename);
#else
return new tiff_reader<std::filebuf>(filename);
#endif
}
image_reader* create_tiff_reader2(char const * data, std::size_t size)
@ -224,8 +229,14 @@ const bool registered2 = register_image_reader("tiff", create_tiff_reader2);
template <typename T>
tiff_reader<T>::tiff_reader(std::string const& filename)
: source_(),
stream_(),//&source_),
:
#if defined(MAPNIK_MEMORY_MAPPED_FILE)
stream_(),
#else
source_(),
stream_(&source_),
#endif
tif_(nullptr),
read_method_(generic),
rows_per_strip_(0),

14
test/unit/imaging/tiff_io.cpp
View file

@ -14,8 +14,14 @@
#include <boost/interprocess/streams/bufferstream.hpp>
#include "../../../src/tiff_reader.cpp"
#if defined(MAPNIK_MEMORY_MAPPED_FILE)
using source_type = boost::interprocess::ibufferstream;
#else
using source_type = std::filebuf;
#endif
#define TIFF_ASSERT(filename) \
mapnik::tiff_reader<boost::interprocess::ibufferstream> tiff_reader(filename); \
mapnik::tiff_reader<source_type> tiff_reader(filename); \
REQUIRE( tiff_reader.width() == 256 ); \
REQUIRE( tiff_reader.height() == 256 ); \
REQUIRE( tiff_reader.planar_config() == PLANARCONFIG_CONTIG ); \
@ -141,7 +147,7 @@ void test_tiff_reader(std::string const& pattern)
if (boost::iends_with(path,".tif")
&& boost::istarts_with(mapnik::util::basename(path), pattern))
{
mapnik::tiff_reader< boost::interprocess::ibufferstream> tiff_reader(path);
mapnik::tiff_reader<source_type> tiff_reader(path);
auto width = tiff_reader.width();
auto height = tiff_reader.height();
{
@ -180,7 +186,7 @@ TEST_CASE("tiff io")
SECTION("scan rgb8 striped")
{
std::string filename("./test/data/tiff/scan_512x512_rgb8_striped.tif");
mapnik::tiff_reader< boost::interprocess::ibufferstream> tiff_reader(filename);
mapnik::tiff_reader<source_type> tiff_reader(filename);
REQUIRE( tiff_reader.width() == 512 );
REQUIRE( tiff_reader.height() == 512 );
REQUIRE( tiff_reader.planar_config() == PLANARCONFIG_CONTIG );
@ -210,7 +216,7 @@ TEST_CASE("tiff io")
SECTION("scan rgb8 tiled") {
std::string filename("./test/data/tiff/scan_512x512_rgb8_tiled.tif");
mapnik::tiff_reader< boost::interprocess::ibufferstream> tiff_reader(filename);
mapnik::tiff_reader<source_type> tiff_reader(filename);
REQUIRE( tiff_reader.width() == 512 );
REQUIRE( tiff_reader.height() == 512 );
REQUIRE( tiff_reader.planar_config() == PLANARCONFIG_CONTIG );