551 lines
22 KiB
Python
551 lines
22 KiB
Python
import sys, re, os.path
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from string import Template
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try:
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from cStringIO import StringIO
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except:
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from StringIO import StringIO
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# c_type : { java/jni correspondence }
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type_dict = {
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# "simple" : { j_type : "?", jn_type : "?", jni_type : "?", suffix : "?" },
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"" : { "j_type" : "", "jn_type" : "long", "jni_type" : "jlong" }, # c-tor ret_type
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"void" : { "j_type" : "void", "jn_type" : "void", "jni_type" : "void" },
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"env" : { "j_type" : "", "jn_type" : "", "jni_type" : "JNIEnv*"},
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"cls" : { "j_type" : "", "jn_type" : "", "jni_type" : "jclass"},
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"bool" : { "j_type" : "boolean", "jn_type" : "boolean", "jni_type" : "jboolean", "suffix" : "Z" },
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"int" : { "j_type" : "int", "jn_type" : "int", "jni_type" : "int", "suffix" : "I" },
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"long" : { "j_type" : "int", "jn_type" : "int", "jni_type" : "int", "suffix" : "I" },
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"float" : { "j_type" : "float", "jn_type" : "float", "jni_type" : "jfloat", "suffix" : "F" },
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"double" : { "j_type" : "double", "jn_type" : "double", "jni_type" : "jdouble", "suffix" : "D" },
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"size_t" : { "j_type" : "long", "jn_type" : "long", "jni_type" : "jlong", "suffix" : "J" },
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"__int64" : { "j_type" : "long", "jn_type" : "long", "jni_type" : "jlong", "suffix" : "J" },
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# "complex" : { j_type : "?", jn_args : (("", ""),), jn_name : "", jni_var : "", jni_name : "", "suffix" : "?" },
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"Mat" : { "j_type" : "Mat", "jn_type" : "long", "jn_args" : (("__int64", ".nativeObj"),),
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"jni_var" : "cv::Mat& %(n)s = *((cv::Mat*)%(n)s_nativeObj); //cv::Mat& %(n)s = (%(n)s_nativeObj ? *((cv::Mat*)%(n)s_nativeObj) : cv::Mat())",
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"jni_type" : "jlong", #"jni_name" : "*%(n)s",
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"suffix" : "J" },
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"Point" : { "j_type" : "Point", "jn_args" : (("double", ".x"), ("double", ".y")),
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"jni_var" : "cv::Point %(n)s((int)%(n)s_x, (int)%(n)s_y)",
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"suffix" : "DD"},
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"Point2f" : { "j_type" : "Point", "jn_args" : (("double", ".x"), ("double", ".y")),
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"jni_var" : "cv::Point2f %(n)s((float)%(n)s_x, (float)%(n)s_y)",
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"suffix" : "DD"},
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"Point2d" : { "j_type" : "Point", "jn_args" : (("double", ".x"), ("double", ".y")),
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"jni_var" : "cv::Point2d %(n)s(%(n)s_x, %(n)s_y)",
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"suffix" : "DD"},
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"Point3i" : { "j_type" : "Point", "jn_args" : (("double", ".x"), ("double", ".y"), ("double", ".z")),
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"jni_var" : "cv::Point3i %(n)s((int)%(n)s_x, (int)%(n)s_y, (int)%(n)s_z)",
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"suffix" : "DDD"},
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"Point3f" : { "j_type" : "Point", "jn_args" : (("double", ".x"), ("double", ".y"), ("double", ".z")),
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"jni_var" : "cv::Point3f %(n)s((float)%(n)s_x, (float)%(n)s_y, (float)%(n)s_z)",
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"suffix" : "DDD"},
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"Point3d" : { "j_type" : "Point", "jn_args" : (("double", ".x"), ("double", ".y"), ("double", ".z")),
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"jni_var" : "cv::Point3d %(n)s(%(n)s_x, %(n)s_y, %(n)s_z)",
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"suffix" : "DDD"},
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"Rect" : { "j_type" : "Rect", "jn_args" : (("int", ".x"), ("int", ".y"), ("int", ".width"), ("int", ".height")),
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"jni_var" : "cv::Rect %(n)s(%(n)s_x, %(n)s_y, %(n)s_width, %(n)s_height)",
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"suffix" : "IIII"},
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"Size" : { "j_type" : "Size", "jn_args" : (("int", ".width"), ("int", ".height")),
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"jni_var" : "cv::Size %(n)s(%(n)s_width, %(n)s_height)",
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"suffix" : "II"},
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"Scalar" : { "j_type" : "Scalar", "jn_args" : (("double", ".v0"), ("double", ".v1"), ("double", ".v2"), ("double", ".v3")),
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"jni_var" : "cv::Scalar %(n)s(%(n)s_v0, %(n)s_v1, %(n)s_v2, %(n)s_v3)",
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"suffix" : "DDDD"},
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"string" : { "j_type" : "java.lang.String", "jn_type" : "java.lang.String",
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"jni_type" : "jstring", "jni_name" : "n_%(n)s",
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"jni_var" : 'const char* utf_%(n)s = env->GetStringUTFChars(%(n)s, 0); std::string n_%(n)s( utf_%(n)s ? utf_%(n)s : "" ); env->ReleaseStringUTFChars(%(n)s, utf_%(n)s);',
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"suffix" : "Ljava_lang_String_2"},
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}
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class ConstInfo(object):
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def __init__(self, cname, name, val):
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## self.name = re.sub(r"^cv\.", "", name).replace(".", "_")
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self.cname = cname
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self.name = re.sub(r"^Cv", "", name)
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#self.name = re.sub(r"([a-z])([A-Z])", r"\1_\2", name)
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#self.name = self.name.upper()
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self.value = val
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class ClassInfo(object):
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def __init__(self, decl): # [ 'class/struct cname', [bases], [modlist] ]
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name = decl[0]
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name = name[name.find(" ")+1:].strip()
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self.cname = self.name = self.jname = re.sub(r"^cv\.", "", name)
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self.cname =self.cname.replace(".", "::")
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self.jname = re.sub(r"^Cv", "", self.jname)
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self.methods = {}
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self.consts = [] # using a list to save the occurence order
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for m in decl[2]:
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if m.startswith("="):
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self.jname = m[1:]
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class ArgInfo(object):
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def __init__(self, arg_tuple): # [ ctype, name, def val, [mod], argno ]
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self.ctype = arg_tuple[0]
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self.name = arg_tuple[1]
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self.defval = arg_tuple[2]
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self.out = "/O" in arg_tuple[3] or "/IO" in arg_tuple[3]
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## def isbig(self):
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## return self.ctype == "Mat" or self.ctype == "vector_Mat"
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class FuncInfo(object):
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def __init__(self, decl): # [ funcname, return_ctype, [modifiers], [args] ]
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name = re.sub(r"^cv\.", "", decl[0])
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self.cname = name.replace(".", "::")
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classname = ""
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dpos = name.rfind(".")
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if dpos >= 0:
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classname = name[:dpos]
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name = name[dpos+1:]
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self.classname = classname
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self.jname = self.name = name
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if "[" in name:
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self.jname = "getelem"
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for m in decl[2]:
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if m.startswith("="):
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self.jname = m[1:]
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self.jn_name = "n_" + self.jname
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self.jni_name= re.sub(r"_", "_1", self.jn_name)
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if self.classname:
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self.jni_name = "00024" + self.classname + "_" + self.jni_name
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self.static = ["","static"][ "/S" in decl[2] ]
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self.ctype = decl[1] or ""
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self.args = []
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#self.jni_suffix = "__"
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#if self.classname and self.ctype and not self.static: # non-static class methods except c-tors
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# self.jni_suffix += "J" # artifical 'self'
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for a in decl[3]:
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ai = ArgInfo(a)
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self.args.append(ai)
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# self.jni_suffix += ctype2j.get(ai.ctype, ["","","",""])[3]
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class FuncFamilyInfo(object):
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def __init__(self, decl): # [ funcname, return_ctype, [modifiers], [args] ]
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self.funcs = []
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self.funcs.append( FuncInfo(decl) )
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self.jname = self.funcs[0].jname
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self.isconstructor = self.funcs[0].name == self.funcs[0].classname
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def add_func(self, fi):
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self.funcs.append( fi )
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class JavaWrapperGenerator(object):
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def __init__(self):
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self.clear()
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def clear(self):
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self.classes = { "Mat" : ClassInfo([ 'class Mat', [], [] ]) }
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self.funcs = {}
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self.consts = [] # using a list to save the occurence order
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self.module = ""
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self.java_code = StringIO()
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self.cpp_code = StringIO()
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self.ported_func_counter = 0
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self.func_counter = 0
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def add_class(self, decl):
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classinfo = ClassInfo(decl)
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if classinfo.name in self.classes:
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print "Generator error: class %s (%s) is duplicated" % \
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(classinfo.name, classinfo.cname)
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sys.exit(-1)
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self.classes[classinfo.name] = classinfo
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if classinfo.name in type_dict:
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print "Duplicated class: " + classinfo.name
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sys.exit(-1)
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type_dict[classinfo.name] = \
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{ "j_type" : classinfo.name, "jn_args" : (("__int64", ".nativeObj"),),
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"jni_name" : "(*((cv::"+classinfo.name+"*)%(n)s_nativeObj))",
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"suffix" : "J" }
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def add_const(self, decl): # [ "const cname", val, [], [] ]
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consts = self.consts
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name = decl[0].replace("const ", "").strip()
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name = re.sub(r"^cv\.", "", name)
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cname = name.replace(".", "::")
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# check if it's a class member
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dpos = name.rfind(".")
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if dpos >= 0:
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classname = name[:dpos]
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name = name[dpos+1:]
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if classname in self.classes:
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consts = self.classes[classname].consts
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else:
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# this class isn't wrapped
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# skipping this const
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return
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constinfo = ConstInfo(cname, name, decl[1])
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# checking duplication
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for c in consts:
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if c.name == constinfo.name:
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print "Generator error: constant %s (%s) is duplicated" \
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% (constinfo.name, constinfo.cname)
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sys.exit(-1)
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consts.append(constinfo)
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def add_func(self, decl):
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ffi = FuncFamilyInfo(decl)
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func_map = self.funcs
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classname = ffi.funcs[0].classname
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if classname:
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if classname in self.classes:
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func_map = self.classes[classname].methods
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else:
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print "Generator error: the class %s for method %s is missing" % \
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(classname, ffi.jname)
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sys.exit(-1)
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if ffi.jname in func_map:
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func_map[ffi.jname].add_func(ffi.funcs[0])
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else:
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func_map[ffi.jname] = ffi
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def save(self, path, name, buf):
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f = open(path + "/" + name, "wt")
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f.write(buf.getvalue())
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f.close()
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def gen(self, srcfiles, module, output_path):
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self.clear()
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self.module = module
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parser = hdr_parser.CppHeaderParser()
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# step 1: scan the headers and build more descriptive maps of classes, consts, functions
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for hdr in srcfiles:
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decls = parser.parse(hdr)
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for decl in decls:
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name = decl[0]
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if name.startswith("struct") or name.startswith("class"):
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self.add_class(decl)
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pass
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elif name.startswith("const"):
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self.add_const(decl)
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else: # function
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self.add_func(decl)
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pass
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# java module header
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self.java_code.write(\
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"""package org.opencv;
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public class %(module)s {
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//Load the native jni library
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static {
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System.loadLibrary("opencv_java");
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}
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public static final int
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CV_8U = 0,
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CV_8S = 1,
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CV_16U = 2,
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CV_16S = 3,
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CV_32S = 4,
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CV_32F = 5,
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CV_64F = 6,
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CV_USRTYPE1 = 7,
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IPL_BORDER_CONSTANT = 0,
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IPL_BORDER_REPLICATE = 1,
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IPL_BORDER_REFLECT = 2,
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IPL_BORDER_WRAP = 3,
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IPL_BORDER_REFLECT_101 = 4,
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IPL_BORDER_TRANSPARENT = 5;
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""" % {"module" : module} )
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# cpp module header
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self.cpp_code.write(\
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"""// This file is auto-generated, please don't edit!
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#include <jni.h>
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/*
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#include <android/log.h>
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#define TEGRA_LOG_TAG "OpenCV_for_Android"
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#define LOGD(...) ((void)__android_log_print(ANDROID_LOG_DEBUG, TEGRA_LOG_TAG, __VA_ARGS__))
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*/
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""" % {"module" : module})
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self.cpp_code.write( "\n".join(['#include "opencv2/%s/%s"' % (module, os.path.basename(f)) \
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for f in srcfiles]) )
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self.cpp_code.write('\n\nextern "C" {\n\n')
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# step 2: generate the code for global constants
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self.gen_consts()
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# step 3: generate the code for all the global functions
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self.gen_funcs()
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# step 4: generate code for the classes
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#self.gen_classes() # !!! tempory disabled !!!
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# module tail
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self.java_code.write("}\n")
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self.cpp_code.write('} // extern "C"\n')
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self.save(output_path, module+".java", self.java_code)
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self.save(output_path, module+".cpp", self.cpp_code)
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print "Done %i of %i funcs." % (self.ported_func_counter, self.func_counter)
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def gen_consts(self):
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# generate the code for global constants
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if self.consts:
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self.java_code.write("""
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public static final int
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""" + """,
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""".join(["%s = %s" % (c.name, c.value) for c in self.consts]) + \
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";\n\n")
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def gen_func(self, fi, isoverload):
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self.func_counter += 1
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# java part & cpp part:
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# // c_decl
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# e.g:
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# // void add(Mat src1, Mat src2, Mat dst, Mat mask = Mat(), int dtype = -1)
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c_decl = "%s %s %s(%s)" % \
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( fi.static, fi.ctype, fi.cname, \
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", ".join(a.ctype + " " + a.name + [""," = "+a.defval][bool(a.defval)] for a in fi.args) )
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indent = " " * 4
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if fi.classname:
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indent += " " * 4
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self.java_code.write( "\n%s// %s\n" % (indent, c_decl) )
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self.cpp_code.write( "\n//\n//%s\n//\n" % c_decl )
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# check if we 'know' all the types
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type_info = type_dict.get(fi.ctype)
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if not (type_info and type_info.get("jn_type")): # unsupported ret type
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msg = "// Return type '%s' is not supported, skipping the function\n\n" % fi.ctype
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self.java_code.write( indent + msg )
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self.cpp_code.write( msg )
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print "SKIP:", c_decl, "\n\tdue to RET type", fi.ctype
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return
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for a in fi.args:
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if a.ctype not in type_dict:
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msg = "// Unknown type '%s', skipping the function\n\n" % a.ctype
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self.java_code.write( indent + msg )
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self.cpp_code.write( msg )
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print "SKIP:", c_decl, "\n\tdue to ARG type", a.ctype
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return
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if a.ctype != "Mat" and "jn_args" in type_dict[a.ctype] and a.out: # complex out args not yet supported
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msg = "// Unsupported type '%s&', skipping the function\n\n" % a.ctype
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self.java_code.write( indent + msg )
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self.cpp_code.write( msg )
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print "SKIP:", c_decl, "\n\tdue to OUT ARG of type", a.ctype
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return
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self.ported_func_counter += 1
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# java args
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args = fi.args[:] # copy
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if args and args[-1].defval:
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isoverload = True
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while True:
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# java native method args
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jn_args = []
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# jni (cpp) function args
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jni_args = [ArgInfo([ "env", "env", "", [], "" ]), ArgInfo([ "cls", "cls", "", [], "" ])]
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suffix = "__"
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if fi.classname and fi.ctype and not fi.static: # non-static class method except c-tor
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# adding 'self'
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jn_args.append ( ArgInfo([ "__int64", "nativeObj", "", [], "" ]) )
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jni_args.append( ArgInfo([ "__int64", "self", "", [], "" ]) )
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suffix += "J"
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for a in args:
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suffix += type_dict[a.ctype].get("suffix") or ""
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fields = type_dict[a.ctype].get("jn_args") or []
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if fields: # complex type
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for f in fields:
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jn_args.append ( ArgInfo([ f[0], a.name + f[1], "", [], "" ]) )
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jni_args.append( ArgInfo([ f[0], a.name + f[1].replace(".","_"), "", [], "" ]) )
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else:
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jn_args.append(a)
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jni_args.append(a)
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# java part:
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# private java NATIVE method decl
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# e.g.
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# private static native void n_add(long src1, long src2, long dst, long mask, int dtype);
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self.java_code.write( Template(\
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"${indent}private static native $jn_type $jn_name($jn_args);\n").substitute(\
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indent = indent, \
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jn_type = type_dict[fi.ctype]["jn_type"], \
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jn_name = fi.jn_name, \
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jn_args = ", ".join(["%s %s" % (type_dict[a.ctype]["jn_type"], a.name.replace(".","_")) for a in jn_args])
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) );
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# java part:
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# public java wrapper method impl (calling native one above)
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# e.g.
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# public static void add( Mat src1, Mat src2, Mat dst, Mat mask, int dtype )
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# { n_add( src1.nativeObj, src2.nativeObj, dst.nativeObj, mask.nativeObj, dtype ); }
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impl_code = "return $jn_name($jn_args_call);"
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if fi.ctype == "void":
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impl_code = "$jn_name($jn_args_call);"
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elif fi.ctype == "": # c-tor
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impl_code = "nativeObj = $jn_name($jn_args_call);"
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elif fi.ctype in self.classes: # wrapped class
|
|
impl_code = " return new %s( $jn_name($jn_args_call) ); " % \
|
|
self.classes[fi.ctype].jname
|
|
|
|
static = "static"
|
|
if fi.classname:
|
|
static = fi.static
|
|
|
|
self.java_code.write( Template(\
|
|
"${indent}public $static $j_type $j_name($j_args)").substitute(\
|
|
indent = indent, \
|
|
static=static, \
|
|
j_type=type_dict[fi.ctype]["j_type"], \
|
|
j_name=fi.jname, \
|
|
j_args=", ".join(["%s %s" % (type_dict[a.ctype]["j_type"], a.name) for a in args]) \
|
|
) )
|
|
|
|
self.java_code.write( Template("\n$indent{ " + impl_code + " }\n").substitute(\
|
|
indent = indent, \
|
|
jn_name=fi.jn_name, \
|
|
jn_args_call=", ".join( [a.name for a in jn_args] )\
|
|
) )
|
|
|
|
# cpp part:
|
|
# jni_func(..) { return cv_func(..); }
|
|
ret = "return "
|
|
if fi.ctype == "void":
|
|
ret = ""
|
|
elif fi.ctype in self.classes: # wrapped class:
|
|
ret = "return (jlong) new cv::" + self.classes[fi.ctype].jname
|
|
|
|
cvname = "cv::" + fi.name
|
|
j2cvargs = []
|
|
if fi.classname:
|
|
if not fi.ctype: # c-tor
|
|
cvname = "(jlong) new cv::" + fi.classname
|
|
elif fi.static:
|
|
cvname = "cv::%s::%s" % (fi.classname, fi.name)
|
|
else:
|
|
cvname = "me->" + fi.name
|
|
j2cvargs.append(\
|
|
"cv::%(cls)s* me = (cv::%(cls)s*) self; //TODO: check for NULL" \
|
|
% { "cls" : fi.classname} \
|
|
)
|
|
cvargs = []
|
|
for a in args:
|
|
cvargs.append( type_dict[a.ctype].get("jni_name", "%(n)s") % {"n" : a.name})
|
|
if "jni_var" in type_dict[a.ctype]: # complex type
|
|
j2cvargs.append(type_dict[a.ctype]["jni_var"] % {"n" : a.name} + ";")
|
|
|
|
rtype = type_dict[fi.ctype]["jni_type"]
|
|
self.cpp_code.write ( Template( \
|
|
"""
|
|
|
|
JNIEXPORT $rtype JNICALL Java_org_opencv_${module}_$fname
|
|
($args)
|
|
{
|
|
$j2cv
|
|
//LOGD("$module :: $fname");
|
|
$ret( $cvname( $cvargs ) );
|
|
}
|
|
|
|
|
|
""" ).substitute( \
|
|
rtype = rtype, \
|
|
module = self.module, \
|
|
fname = fi.jni_name + ["",suffix][isoverload], \
|
|
args = ", ".join(["%s %s" % (type_dict[a.ctype].get("jni_type"), a.name) for a in jni_args]), \
|
|
j2cv = "\n ".join([a for a in j2cvargs]), \
|
|
ret = ret, \
|
|
cvname = cvname, \
|
|
cvargs = ", ".join([a for a in cvargs]), \
|
|
) )
|
|
|
|
# processing args with default values
|
|
if args and args[-1].defval:
|
|
a = args.pop()
|
|
else:
|
|
break
|
|
|
|
|
|
|
|
def gen_funcs(self):
|
|
# generate the code for all the global functions
|
|
indent = "\t"
|
|
fflist = self.funcs.items()
|
|
fflist.sort()
|
|
for name, ffi in fflist:
|
|
assert not ffi.funcs[0].classname, "Error: global func is a class member - "+name
|
|
for fi in ffi.funcs:
|
|
self.gen_func(fi, len(ffi.funcs)>1)
|
|
|
|
|
|
def gen_classes(self):
|
|
# generate code for the classes (their methods and consts)
|
|
indent = "\t"
|
|
indent_m = indent + "\t"
|
|
classlist = self.classes.items()
|
|
classlist.sort()
|
|
for name, ci in classlist:
|
|
self.java_code.write( "\n" + indent + "// class %s" % (ci.cname) + "\n" )
|
|
self.java_code.write( indent + "public static class %s {\n\n" % (ci.jname) )
|
|
|
|
# self
|
|
self.java_code.write( indent_m + "protected final long nativeObj;\n" )
|
|
self.java_code.write( indent_m + "protected %s(long addr) { nativeObj = addr; }\n\n" \
|
|
% name );
|
|
# constants
|
|
if ci.consts:
|
|
prefix = "\n" + indent_m + "\t\t"
|
|
s = indent_m + "public static final int" + prefix +\
|
|
("," + prefix).join(["%s = %s" % (c.name, c.value) for c in ci.consts]) + ";\n\n"
|
|
self.java_code.write( s )
|
|
# c-tors
|
|
fflist = ci.methods.items()
|
|
fflist.sort()
|
|
for n, ffi in fflist:
|
|
if ffi.isconstructor:
|
|
for fi in ffi.funcs:
|
|
self.gen_func(fi, len(ffi.funcs)>1)
|
|
self.java_code.write( "\n" )
|
|
for n, ffi in fflist:
|
|
if not ffi.isconstructor:
|
|
for fi in ffi.funcs:
|
|
self.gen_func(fi, len(ffi.funcs)>1)
|
|
|
|
self.java_code.write( "\n" + indent + "}\n\n" )
|
|
|
|
|
|
if __name__ == "__main__":
|
|
if len(sys.argv) < 4:
|
|
print "Usage:\n", \
|
|
os.path.basename(sys.argv[0]), \
|
|
"<full path to hdr_parser.py> <module name> <C++ header> [<C++ header>...]"
|
|
print "Current args are: ", ", ".join(["'"+a+"'" for a in sys.argv])
|
|
exit(0)
|
|
|
|
dstdir = "."
|
|
hdr_parser_path = os.path.abspath(sys.argv[1])
|
|
if hdr_parser_path.endswith(".py"):
|
|
hdr_parser_path = os.path.dirname(hdr_parser_path)
|
|
sys.path.append(hdr_parser_path)
|
|
import hdr_parser
|
|
module = sys.argv[2]
|
|
srcfiles = sys.argv[3:]
|
|
print "Generating module '" + module + "' from headers:\n\t" + "\n\t".join(srcfiles)
|
|
generator = JavaWrapperGenerator()
|
|
generator.gen(srcfiles, module, dstdir)
|
|
|
|
|
|
|