feat(pixels0rt): Add pixels0rt filter

Features:
* 4-directional sorting
* direct and reverse order
* transparency threshold for masking

Author: namikiri

src/filter/CMakeLists.txt

@@ -77,6 +77,7 @@ add_subdirectory (nosync0r)
 add_subdirectory (ntsc)
 add_subdirectory (perspective)
 add_subdirectory (pixeliz0r)
+add_subdirectory (pixels0rt)
 add_subdirectory (pixs0r)
 add_subdirectory (posterize)
 add_subdirectory (premultiply)

src/filter/pixels0rt/CMakeLists.txt

@@ -0,0 +1,11 @@
+set (SOURCES pixels0rt.c)
+set (TARGET pixels0rt)
+
+if (MSVC)
+  set (SOURCES ${SOURCES} ${FREI0R_DEF})
+endif (MSVC)
+
+add_library (${TARGET}  MODULE ${SOURCES})
+set_target_properties (${TARGET} PROPERTIES PREFIX "")
+
+install (TARGETS ${TARGET} LIBRARY DESTINATION ${LIBDIR})