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import pickle
from parseTables import *
from pathlib import Path
def writeLicense(writer):
writer.write(
"""/* This file is part of YUView - The YUV player with advanced analytics toolset
* <https://github.com/IENT/YUView>
* Copyright (C) 2015 Institut für Nachrichtentechnik, RWTH Aachen University, GERMANY
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations including
* the two.
*
* You must obey the GNU General Public License in all respects for all
* of the code used other than OpenSSL. If you modify file(s) with this
* exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do
* so, delete this exception statement from your version. If you delete
* this exception statement from all source files in the program, then
* also delete it here.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/\n\n""")
class HeaderFile:
def __init__ (self, path, name, namespace):
self.f = open(f"{path}/{name}.h", "w")
writeLicense(self.f)
self.f.write("#pragma once\n\n")
self.f.write("#include \"NalUnitVVC.h\"\n")
self.f.write("#include \"parser/common/SubByteReaderLogging.h\"\n\n")
self.f.write(f"""namespace {namespace}""")
self.f.write("\n{\n\n")
self.namespace = namespace
self.spaces = 0
def __del__(self):
self.f.write(f"""}} // namespace {self.namespace}""")
self.f.write("\n")
def write(self, s):
for i in range(self.spaces):
self.f.write(" ")
self.f.write(s)
class CppFile:
def __init__ (self, path, name, namespace):
self.f = open(f"{path}/{name}.cpp", "w")
writeLicense(self.f)
self.f.write(f"""#include "{name}.h"\n""")
self.f.write("""\n""")
self.f.write(f"""namespace {namespace}""")
self.f.write("\n{\n\n")
self.namespace = namespace
self.spaces = 0
def __del__(self):
self.f.write(f"""}} // namespace {self.namespace}""")
self.f.write("\n")
def write(self, s):
for i in range(self.spaces):
self.f.write(" ")
self.f.write(s)
def argumentsToString(arguments, variableType = ""):
s = ""
if (variableType != ""):
variableType += " "
newList = [x for x in arguments if x.strip() != ""]
for i, arg in enumerate(newList):
s += f", {variableType}{arg}"
return s
def writeBeginningToHeader(table, file):
file.write(f"class {table.name} : public NalRBSP\n")
file.write("{\n")
file.write(f"public:\n")
file.write(f" {table.name}() = default;\n")
file.write(f" ~{table.name}() = default;\n")
file.write(f" void parse(SubByteReaderLogging &reader{argumentsToString(table.arguments, 'int')});\n\n")
def writeEndToHeader(file):
file.spaces = 0
file.write("};\n")
file.write("\n")
def writeBeginnginToSource(table, file):
file.write(f"void {table.name}::parse(SubByteReaderLogging &reader)\n")
file.write("{\n")
def writeEndToSource(file):
file.write("}\n")
file.write("\n")
def writeItemsInContainer(container, files):
if (files[0].spaces == 0):
files[0].spaces = 2
files[1].spaces += 2
for item in container.children:
writeItemToFiles(item, files)
files[1].spaces -= 2
def writeItemToFiles(item, files):
header = files[0]
cpp = files[1]
if (type(item) == Variable):
typeString = "unsigned"
arguments = ""
if (item.coding.codingType == Coding.UNSIGNED_VARIABLE and item.coding.length == 0):
# Length for code should be known. Write the info and something that will not compile
header.write(f"int {item.name} {{}};\n")
cpp.write(f"""this->{item.name} = reader.readBits("{item.name}", unknown)\n""")
return
if (item.coding.codingType in [Coding.FIXED_CODE, Coding.UNSIGNED_VARIABLE, Coding.UNSIGNED_FIXED]):
if (item.coding.length == 1):
typeString = "bool"
parseFunction = "readFlag"
else:
parseFunction = "readBits"
arguments = f", {item.coding.length}"
elif (item.coding.codingType == Coding.UNSIGNED_EXP):
parseFunction = "readUEV"
elif (item.coding.codingType == Coding.SIGNED_EXP):
parseFunction = "readSEV"
typeString = "int"
name = item.name
if (item.arrayIndex != None):
for index in item.arrayIndex:
name += f"[{index}]"
typeString = f"std::vector<{typeString}>"
cpp.write(f"""this->{item.name}.push_back(reader.{parseFunction}("{item.name}"{arguments}));\n""")
else:
cpp.write(f"""this->{name} = reader.{parseFunction}("{item.name}"{arguments});\n""")
header.write(f"{typeString} {item.name} {{}};\n")
elif (type(item) == CommentEntry):
header.write(f"//{item.text}\n")
elif (type(item) == FunctionCall):
header.write(f"{item.functionName} {item.functionName}_instance;\n")
cpp.write(f"this->{item.functionName}_instance.parse(reader{argumentsToString(item.arguments)});\n")
elif (type(item) == ContainerIf):
cpp.write(f"if ({item.condition})\n")
cpp.write("{\n")
writeItemsInContainer(item, files)
cpp.write("}\n")
elif (type(item) == ContainerWhile):
cpp.write(f"while ({item.condition})\n")
cpp.write("{\n")
writeItemsInContainer(item, files)
cpp.write("}\n")
elif (type(item) == ContainerDo):
cpp.write("do\n")
cpp.write("{\n")
writeItemsInContainer(item, files)
cpp.write("} ")
cpp.write(f"while({item.condition})\n")
elif (type(item) == ContainerFor):
variableType = "unsigned"
if ("--" in item.increment):
variableType = "int"
cpp.write(f"for ({variableType} {item.variableName} = {item.initialValue}; {item.breakCondition}; {item.increment})\n")
cpp.write("{\n")
writeItemsInContainer(item, files)
cpp.write("}\n")
def writeTableToFiles(table, files):
writeBeginningToHeader(table, files[0])
writeBeginnginToSource(table, files[1])
writeItemsInContainer(table, files)
writeEndToSource(files[1])
writeEndToHeader(files[0])
def writeTablesToCpp(parsedTables, path):
Path(path).mkdir(parents=True, exist_ok=True)
namespace = "parser::vvc"
for table in parsedTables:
assert(type(table) == ContainerTable)
print(f"Writing {table.name}")
files = (HeaderFile(path, table.name, namespace), CppFile(path, table.name, namespace))
writeTableToFiles(table, files)
def main():
parsedTables = pickle.load(open("tempPiclkle.p", "rb"))
writeTablesToCpp(parsedTables, "cpp")
if __name__ == "__main__":
main()
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