зеркало из https://github.com/mozilla/gecko-dev.git
173 строки
4.2 KiB
Python
Executable File
173 строки
4.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
'''
|
|
This script will regenerate and update GLConsts.h.
|
|
|
|
Step 1:
|
|
Download the last gl.xml, egl.xml, glx.xml and wgl.xml from
|
|
http://www.opengl.org/registry/#specfiles into some XML_DIR:
|
|
wget https://www.khronos.org/registry/OpenGL/xml/gl.xml
|
|
wget https://www.khronos.org/registry/OpenGL/xml/glx.xml
|
|
wget https://www.khronos.org/registry/OpenGL/xml/wgl.xml
|
|
wget https://www.khronos.org/registry/EGL/api/egl.xml
|
|
|
|
Step 2:
|
|
`py ./GLConsts.py <XML_DIR>`
|
|
|
|
Step 3:
|
|
Do not add the downloaded XML in the patch
|
|
|
|
Step 4:
|
|
Enjoy =)
|
|
'''
|
|
|
|
# includes
|
|
from typing import List # mypy!
|
|
|
|
import pathlib
|
|
import sys
|
|
import xml.etree.ElementTree
|
|
|
|
# -
|
|
|
|
(_, XML_DIR_STR) = sys.argv
|
|
XML_DIR = pathlib.Path(XML_DIR_STR)
|
|
|
|
# -
|
|
|
|
HEADER = b'''
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
// clang-format off
|
|
|
|
#ifndef GLCONSTS_H_
|
|
#define GLCONSTS_H_
|
|
|
|
/**
|
|
* GENERATED FILE, DO NOT MODIFY DIRECTLY.
|
|
* This is a file generated directly from the official OpenGL registry
|
|
* xml available http://www.opengl.org/registry/#specfiles.
|
|
*
|
|
* To generate this file, see tutorial in \'GLParseRegistryXML.py\'.
|
|
*/
|
|
'''[1:]
|
|
|
|
FOOTER = b'''
|
|
#endif // GLCONSTS_H_
|
|
|
|
// clang-format on
|
|
'''[1:]
|
|
|
|
# -
|
|
|
|
|
|
def format_lib_constant(lib, name, value):
|
|
# lib would be 'GL', 'EGL', 'GLX' or 'WGL'
|
|
# name is the name of the const (example: MAX_TEXTURE_SIZE)
|
|
# value is the value of the const (example: 0xABCD)
|
|
|
|
define = '#define LOCAL_' + lib + '_' + name
|
|
whitespace = 60 - len(define)
|
|
if whitespace < 0:
|
|
whitespace = whitespace % 8
|
|
|
|
return define + ' ' * whitespace + ' ' + value
|
|
|
|
|
|
class GLConst:
|
|
def __init__(self, lib, name, value, type):
|
|
self.lib = lib
|
|
self.name = name
|
|
self.value = value
|
|
self.type = type
|
|
|
|
|
|
class GLDatabase:
|
|
LIBS = ['GL', 'EGL', 'GLX', 'WGL']
|
|
|
|
def __init__(self):
|
|
self.consts = {}
|
|
self.libs = set(GLDatabase.LIBS)
|
|
self.vendors = set(['EXT', 'ATI'])
|
|
# there is no vendor="EXT" and vendor="ATI" in gl.xml,
|
|
# so we manualy declare them
|
|
|
|
def load_xml(self, xml_path):
|
|
tree = xml.etree.ElementTree.parse(xml_path)
|
|
root = tree.getroot()
|
|
|
|
for enums in root.iter('enums'):
|
|
vendor = enums.get('vendor')
|
|
if not vendor:
|
|
# there some standart enums that do have the vendor attribute,
|
|
# so we fake them as ARB's enums
|
|
vendor = 'ARB'
|
|
|
|
if vendor not in self.vendors:
|
|
# we map this new vendor in the vendors set.
|
|
self.vendors.add(vendor)
|
|
|
|
namespaceType = enums.get('type')
|
|
|
|
for enum in enums:
|
|
if enum.tag != 'enum':
|
|
# this is not an enum => we skip it
|
|
continue
|
|
|
|
lib = enum.get('name').split('_')[0]
|
|
|
|
if lib not in self.libs:
|
|
# unknown library => we skip it
|
|
continue
|
|
|
|
name = enum.get('name')[len(lib) + 1:]
|
|
value = enum.get('value')
|
|
type = enum.get('type')
|
|
|
|
if not type:
|
|
# if no type specified, we get the namespace's default type
|
|
type = namespaceType
|
|
|
|
self.consts[lib + '_' + name] = GLConst(lib, name, value, type)
|
|
|
|
|
|
# -
|
|
|
|
db = GLDatabase()
|
|
db.load_xml(XML_DIR / 'gl.xml')
|
|
db.load_xml(XML_DIR / 'glx.xml')
|
|
db.load_xml(XML_DIR / 'wgl.xml')
|
|
db.load_xml(XML_DIR / 'egl.xml')
|
|
|
|
# -
|
|
|
|
lines: List[str] = [] # noqa: E999 (bug 1573737)
|
|
|
|
keys = sorted(db.consts.keys())
|
|
|
|
for lib in db.LIBS:
|
|
lines.append('// ' + lib)
|
|
|
|
for k in keys:
|
|
const = db.consts[k]
|
|
|
|
if const.lib != lib:
|
|
continue
|
|
|
|
const_str = format_lib_constant(lib, const.name, const.value)
|
|
lines.append(const_str)
|
|
|
|
lines.append('')
|
|
|
|
# -
|
|
|
|
b_lines: List[bytes] = [HEADER] + [x.encode() for x in lines] + [FOOTER]
|
|
b_data: bytes = b'\n'.join(b_lines)
|
|
|
|
dest = pathlib.Path('GLConsts.h')
|
|
dest.write_bytes(b_data)
|
|
|
|
print(f'Wrote {len(b_data)} bytes.') # Some indication that we're successful.
|