mirror of
https://github.com/opencv/opencv.git
synced 2024-11-25 19:50:38 +08:00
559 lines
21 KiB
Python
559 lines
21 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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ctype2j = {
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# c : (j, jn, jni, jni code)
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"" : ("", "long", "jlong", ""), # c-tor
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"void" : ("void", "void", "void", ""),
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"bool" : ("boolean", "boolean","jboolean", "Z"),
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"int" : ("int", "int", "jint", "I"),
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"long" : ("int", "int", "jint", "I"),
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"float" : ("float", "float", "jfloat", "F"),
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"double" : ("double", "double", "jdouble", "D"),
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"size_t" : ("long", "long", "jlong", "J"),
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"env" : ("", "", "JNIEnv*", ""), # dummy 'env'
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"cls" : ("", "", "jclass", ""), # dummy 'cls'
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#
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"Mat" : ("Mat", (("size_t", ".nativeObj"),), "*%(n)s", "J"),
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"Point" : ("Point", (("double", ".x"), ("double", ".y")), "cv::Point((int)%(n)s_x, (int)%(n)s_y)", "DD"),
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"Point2f" : ("Point", (("double", ".x"), ("double", ".y")), "cv::Point2f((float)%(n)s_x, (float)%(n)s_y)", "DD"),
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"Point2d" : ("Point", (("double", ".x"), ("double", ".y")), "cv::Point2d(%(n)s_x, %(n)s_y)", "DD"),
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"Point3i" : ("Point", (("double", ".x"), ("double", ".y"), ("double", ".z")),\
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"cv::Point3i((int)%(n)s_x, (int)%(n)s_y, (int)%(n)s_z)", "DDD"),
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"Point3f" : ("Point", (("double", ".x"), ("double", ".y"), ("double", ".z")),\
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"cv::Point3f((float)%(n)s_x, (float)%(n)s_y, (float)%(n)s_z)", "DDD"),
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"Point3d" : ("Point", (("double", ".x"), ("double", ".y"), ("double", ".z")),\
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"cv::Point3d(%(n)s_x, %(n)s_y, %(n)s_z)", "DDD"),
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"Rect" : ("Rect", (("int", ".x"), ("int", ".y"), ("int", ".width"), ("int", ".height")), \
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"cv::Rect(%(n)s_x, %(n)s_y, %(n)s_width, %(n)s_height)", "IIII"),
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"Size" : ("Size", (("int", ".width"), ("int", ".height")), "cv::Size(%(n)s_width, %(n)s_height)", "II"),
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"Scalar" : ("Scalar", (("double", ".v0"), ("double", ".v1"), ("double", ".v2"), ("double", ".v3")),\
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"cv::Scalar(%(n)s_v0, %(n)s_v1, %(n)s_v2, %(n)s_v3)", "DDDD"),
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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 ctype2j:
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print "Duplicated class: " + classinfo.name
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sys.exit(-1)
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ctype2j[classinfo.name] = (classinfo.jname, (("size_t", ".nativeObj"),), "*%(n)s", "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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""" % {"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\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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# java module tail
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self.java_code.write("}\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 = ""
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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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if fi.ctype and fi.ctype!="Mat" and fi.ctype[0].isupper(): # ret val is class, NYI (TODO!)
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self.java_code.write( " %s// Return type '%s' is not yet supported, skipping the function\n\n"\
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% (indent, fi.ctype) )
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print "SKIP:", c_decl, "\n\tdue to RET type", fi.ctype
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return
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types = [fi.ctype]
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types.extend([a.ctype for a in fi.args])
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for t in types:
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if t not in ctype2j:
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self.java_code.write( " %s// Unknown type '%s', skipping the function\n\n" % (indent, t) )
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print "SKIP:", c_decl, "\n\tdue to ARG type", t
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return
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for a in fi.args:
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if a.ctype[0].isupper() and a.ctype != "Mat" and a.out: # C++ reference to a class (gcc disallows temp obj reference)
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self.java_code.write( " %s// Unknown type '%s&', skipping the function\n\n" % (indent, t) )
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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 fi.cname == "minEnclosingCircle":
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self.java_code.write( " %s// Temporary skipping the function %s\n\n" % (indent, fi.cname) )
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print "SKIP:", c_decl, "\n\tdue to Temporary filtering"
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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[:]
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if args and args[-1].defval:
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isoverload = True
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suffix = fi.jni_suffix
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while True:
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# java native method args
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jn_args = []
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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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jn_args.append(ArgInfo([ "size_t", "nativeObj", "", [], "" ])) # adding 'this'
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for a in args:
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if a.ctype[0].isupper(): # Point/Rect/...
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#"Point" : ("Point", [["int", ".x"], ["int", ".y"]], ...)
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fields = ctype2j[a.ctype][1]
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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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else:
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jn_args.append(a)
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# jni (cpp) function args
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jni_args = [ArgInfo([ "env", "env", "", [], "" ]), ArgInfo([ "cls", "cls", "", [], "" ])]
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if fi.classname and fi.ctype and not fi.static:
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jni_args.append(ArgInfo([ "size_t", "self", "", [], "" ]))
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for a in args:
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if a.ctype[0].isupper(): # Point/Rect/...
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#"Point" : ("Point", [["int", ".x"], ["int", ".y"]], ...)
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fields = ctype2j[a.ctype][1]
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for f in fields:
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jni_args.append( ArgInfo([ f[0], a.name + f[1].replace(".","_"), "", [], "" ]) )
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else:
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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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jn_type = ""
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if fi.ctype == "Mat":
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jn_type = "long"
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elif fi.ctype[0].isupper():
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jn_type = "NYI" # TODO: NYI
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else:
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jn_type = ctype2j[fi.ctype][1]
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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=jn_type, \
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jn_name=fi.jn_name, \
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jn_args=", ".join(["%s %s" % (ctype2j[a.ctype][1], 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
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impl_code = " return new %s( $jn_name($jn_args_call) ); " % \
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self.classes[fi.ctype].jname
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static = "static"
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if fi.classname:
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static = fi.static
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self.java_code.write( Template(\
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" ${indent}public $static $j_type $j_name($j_args)").substitute(\
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indent = indent, \
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static=static, \
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j_type=ctype2j[fi.ctype][0], \
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j_name=fi.jname, \
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j_args=", ".join(["%s %s" % (ctype2j[a.ctype][0], a.name) for a in args]) \
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) )
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self.java_code.write( Template("\n $indent{ " + impl_code + " }\n").substitute(\
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indent = indent, \
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jn_name=fi.jn_name, \
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jn_args_call=", ".join([a.name + ["",".nativeObj"][ctype2j[a.ctype][0]=="Mat"] for a in jn_args])\
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) )
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# cpp part:
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# jni_func(..) { return cv_func(..); }
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ret = "return "
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if fi.ctype == "void":
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ret = ""
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elif fi.ctype == "Mat":
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ret = "return (jlong) new cv::Mat"
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elif fi.ctype[0].isupper():
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ret = NYI # NYI
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cvname = "cv::" + fi.name
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j2cvargs = []
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if fi.classname:
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if not fi.ctype: # c-tor
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cvname = "(jlong) new cv::" + fi.classname
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elif fi.static:
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cvname = "cv::%s::%s" % (fi.classname, fi.name)
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else:
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cvname = "%s->%s" % ("me", fi.name)
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j2cvargs.append(\
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"cv::%s* me = (cv::%s*) self; //TODO: check for NULL" % \
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(fi.classname, fi.classname) \
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)
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cvargs = []
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for a in args:
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cva = a.name
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if a.ctype[0].isupper(): # Point/Rect/...
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# "Point" : ("Point", (("int", ".x"), ("int", ".y")), "Point(%(n)s_x, %(n)s_y)", "II")
|
|
# Point(p_x, p_y)
|
|
cva = ctype2j[a.ctype][2] % {"n" : a.name}
|
|
if a.ctype == "Mat":
|
|
j2cvargs.append("cv::Mat* %s = (cv::Mat*) %s_nativeObj; //TODO: check for NULL"\
|
|
% (a.name, a.name))
|
|
pass
|
|
cvargs.append(cva)
|
|
|
|
rtype = "NYI"
|
|
if fi.ctype == "Mat":
|
|
rtype = "jlong"
|
|
elif fi.ctype[0].isupper():
|
|
rtype = "NYI" # TODO: NYI
|
|
else:
|
|
rtype = ctype2j[fi.ctype][2]
|
|
|
|
self.cpp_code.write ( Template( \
|
|
"""
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
JNIEXPORT $rtype JNICALL Java_org_opencv_${module}_$fname
|
|
($args);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
JNIEXPORT $rtype JNICALL Java_org_opencv_${module}_$fname
|
|
($args)
|
|
{
|
|
$j2cv
|
|
$ret( $cvname( $cvargs ) );
|
|
}
|
|
|
|
""" ).substitute( \
|
|
rtype = rtype, \
|
|
module = self.module, \
|
|
fname = fi.jni_name + ["",suffix][isoverload], \
|
|
args = ", ".join(["%s %s" % (ctype2j[a.ctype][2], 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()
|
|
suffix = suffix[0:-len(ctype2j[a.ctype][3])]
|
|
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)
|
|
|
|
|
|
|