# Copyright (c) 2001, Stanford University
# All rights reserved.
#
# See the file LICENSE.txt for information on redistributing this software.


from __future__ import print_function
import sys

import apiutil


def GenerateEntrypoints():

    #apiutil.CopyrightC()

    # Get sorted list of dispatched functions.
    # The order is very important - it must match cr_opcodes.h
    # and spu_dispatch_table.h
    print('%include "iprt/asmdefs.mac"')
    print("")
    print("%ifdef RT_ARCH_AMD64")
    print("extern glim")
    print("%else ; X86")
    print("extern glim")
    print("%endif")
    print("")

    keys = apiutil.GetDispatchedFunctions(sys.argv[1]+"/APIspec.txt")

    for index in range(len(keys)):
        func_name = keys[index]
        if apiutil.Category(func_name) == "Chromium":
            continue
        if apiutil.Category(func_name) == "VBox":
            continue

        print("BEGINPROC_EXPORTED gl%s" % func_name)
        print("%ifdef RT_ARCH_AMD64")
        print("\tmov \trax, qword glim+%d" % (8*index))
        print("\tjmp \t[rax]")
        print("%else ; X86")
        print("\tmov \teax, dword glim+%d" % (4*index))
        print("\tjmp \t[eax]")
        print("%endif")
        print("ENDPROC gl%s" % func_name)
        print("")


    print(';')
    print('; Aliases')
    print(';')

    # Now loop over all the functions and take care of any aliases
    allkeys = apiutil.GetAllFunctions(sys.argv[1]+"/APIspec.txt")
    for func_name in allkeys:
        if "omit" in apiutil.ChromiumProps(func_name):
            continue

        if func_name in keys:
            # we already processed this function earlier
            continue

        # alias is the function we're aliasing
        alias = apiutil.Alias(func_name)
        if alias:
            # this dict lookup should never fail (raise an exception)!
            index = keys.index(alias)
            print("BEGINPROC_EXPORTED gl%s" % func_name)
            print("%ifdef RT_ARCH_AMD64")
            print("\tmov \trax, qword glim+%d" % (8*index))
            print("\tjmp \t[rax]")
            print("%else ; X86")
            print("\tmov \teax, dword glim+%d" % (4*index))
            print("\tjmp \t[eax]")
            print("%endif")
            print("ENDPROC gl%s" % func_name)
            print("")


    print(';')
    print('; No-op stubs')
    print(';')

    # Now generate no-op stub functions
    for func_name in allkeys:
        if "stub" in apiutil.ChromiumProps(func_name):
            print("BEGINPROC_EXPORTED gl%s" % func_name)
            print("\tleave")
            print("\tret")
            print("ENDPROC gl%s" % func_name)
            print("")


GenerateEntrypoints()