xref: /aosp_15_r20/external/deqp/scripts/opengl/gen_wrapper.py (revision 35238bce31c2a825756842865a792f8cf7f89930)

# -*- coding: utf-8 -*-

#-------------------------------------------------------------------------
# drawElements Quality Program utilities
# --------------------------------------
#
# Copyright 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#-------------------------------------------------------------------------

import os
from src_util import *
from itertools import chain

try:
    from itertools import imap
except ImportError:
    imap=map

def getMangledName (funcName):
    assert funcName[:2] == "gl"
    return "glw" + funcName[2:]

def commandAliasDefinition (command):
    return "#define\t%s\t%s" % (command.name, getMangledName(command.name))

def commandWrapperDeclaration (command):
    return "%s\t%s\t(%s);" % (
        command.type,
        getMangledName(command.name),
        ", ".join([param.declaration for param in command.params]))

def genWrapperHeader (iface):
    defines = imap(commandAliasDefinition, iface.commands)
    prototypes = imap(commandWrapperDeclaration, iface.commands)
    src = indentLines(chain(defines, prototypes))
    writeInlFile(os.path.join(OPENGL_INC_DIR, "glwApi.inl"), src)

def getDefaultReturn (command):
    if command.name == "glGetError":
        return "GL_INVALID_OPERATION"
    else:
        assert command.type != 'void'
        return "(%s)0" % command.type

def commandWrapperDefinition (command):
    template = """
{returnType} {mangledName} ({paramDecls})
{{
    const glw::Functions* gl = glw::getCurrentThreadFunctions();
    if (!gl)
        return{defaultReturn};
    {maybeReturn}gl->{memberName}({arguments});
}}"""
    return template.format(
        returnType = command.type,
        mangledName = getMangledName(command.name),
        paramDecls = commandParams(command),
        defaultReturn = " " + getDefaultReturn(command) if command.type != 'void' else "",
        maybeReturn = "return " if command.type != 'void' else "",
        memberName = getFunctionMemberName(command.name),
        arguments = commandArgs(command))

def genWrapperImplementation (iface):
    genCommandList(iface, commandWrapperDefinition, OPENGL_INC_DIR, "glwImpl.inl")

def genWrapper (iface):
    genWrapperHeader(iface)
    genWrapperImplementation(iface)

if __name__ == "__main__":
    genWrapper(getHybridInterface())