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Vulkan-Docs/scripts/genvk.py
Jon Leech 194a7f4d0d Change log for September 8, 2019 Vulkan 1.1.122 spec update: 
* Update release number to 122.

Internal Issues:

  * Add style guide language on not using standalone `+` signs (internal
    issue 736); not using leading whitespace for markup (internal issue
    747); and on keeping descriptions of a single API in a contiguous block
    of markup (internal issue 949), and apply them to the specification.
  * Add a glossary definition of "`constant integral expression`", pointing
    to the SPIR-V "`constant instruction`" definition (internal issue 1225).
  * Many minor edits to improve writing style consistency and capture
    additional style guidelines (internal issue 1553).
  * Clarify that <<fragops-depth-write, depth writes are not performed>> if
    there is no depth framebuffer attachment (internal issue 1771).
  * Allow implementations to use rectangular line style of interpolation for
    <<primsrast-lines-bresenham, wide Bresenham lines>>, though replicating
    attributes is still preferred. Clarify that code:FragCoord is not
    replicated (internal issue 1772).
  * Resolve a contradiction in valid usage statements for
    slink:VkImageCreateInfo and slink:VkImageStencilUsageCreateInfoEXT
    (internal issue 1773).
  * Add style guide discussion of markup for indented equations, and use
    markup workaround for asciidoctor 2 compatibility (internal issue 1793).
  * Deprecate the `<<VK_EXT_validation_flags>>` extension in `vk.xml` and
    the extension appendix (internal issue 1801).
  * Add a new checker script `scripts/xml_consistency.py`. This is not
    currently run as part of internal CI (internal merge request 3285).
  * Correct "`an`" -> "`a`" prepositions where needed (internal merge
    request 3334).
  * Clarify that the <<features-uniformBufferStandardLayout,
    pname:uniformBufferStandardLayout>> feature is only required when the
    extension defining it is supported (internal merge request 3341).
  * Bring scripts into closer sync with OpenXR, mainly through conversion of
    comments to docstrings where appropriate, and add gen-scripts-docs.sh
    (internal merge request 3324).
  * Correct pname:maxDrawMeshTasksCount to 2^16^-1 in the <<limits-required,
    Required Limits>> table (internal merge requests 3361).

New Extensions

  * `<<VK_IMG_format_pvrtc>>` (public issue 512).
2019-09-08 20:41:02 -07:00

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#!/usr/bin/python3
#
# Copyright (c) 2013-2019 The Khronos Group Inc.
#
# 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 argparse
import pdb
import re
import sys
import time
import xml.etree.ElementTree as etree
from cgenerator import CGeneratorOptions, COutputGenerator
from docgenerator import DocGeneratorOptions, DocOutputGenerator
from extensionmetadocgenerator import (ExtensionMetaDocGeneratorOptions,
ExtensionMetaDocOutputGenerator)
from generator import write
from hostsyncgenerator import HostSynchronizationOutputGenerator
from pygenerator import PyOutputGenerator
from reg import Registry
from validitygenerator import ValidityOutputGenerator
from vkconventions import VulkanConventions
# Simple timer functions
startTime = None
def startTimer(timeit):
global startTime
if timeit:
startTime = time.process_time()
def endTimer(timeit, msg):
global startTime
if timeit:
endTime = time.process_time()
write(msg, endTime - startTime, file=sys.stderr)
startTime = None
def makeREstring(strings, default=None, strings_are_regex=False):
"""Turn a list of strings into a regexp string matching exactly those strings."""
if strings or default is None:
if not strings_are_regex:
strings = (re.escape(s) for s in strings)
return '^(' + '|'.join(strings) + ')$'
return default
def makeGenOpts(args):
"""Returns a directory of [ generator function, generator options ] indexed
by specified short names. The generator options incorporate the following
parameters:
args is an parsed argument object; see below for the fields that are used."""
global genOpts
genOpts = {}
# Default class of extensions to include, or None
defaultExtensions = args.defaultExtensions
# Additional extensions to include (list of extensions)
extensions = args.extension
# Extensions to remove (list of extensions)
removeExtensions = args.removeExtensions
# Extensions to emit (list of extensions)
emitExtensions = args.emitExtensions
# Features to include (list of features)
features = args.feature
# Whether to disable inclusion protect in headers
protect = args.protect
# Output target directory
directory = args.directory
# Descriptive names for various regexp patterns used to select
# versions and extensions
allFeatures = allExtensions = r'.*'
# Turn lists of names/patterns into matching regular expressions
addExtensionsPat = makeREstring(extensions, None)
removeExtensionsPat = makeREstring(removeExtensions, None)
emitExtensionsPat = makeREstring(emitExtensions, allExtensions)
featuresPat = makeREstring(features, allFeatures)
# Copyright text prefixing all headers (list of strings).
prefixStrings = [
'/*',
'** Copyright (c) 2015-2019 The Khronos Group Inc.',
'**',
'** 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.',
'*/',
''
]
# Text specific to Vulkan headers
vkPrefixStrings = [
'/*',
'** This header is generated from the Khronos Vulkan XML API Registry.',
'**',
'*/',
''
]
# Defaults for generating re-inclusion protection wrappers (or not)
protectFile = protect
# An API style conventions object
conventions = VulkanConventions()
# API include files for spec and ref pages
# Overwrites include subdirectories in spec source tree
# The generated include files do not include the calling convention
# macros (apientry etc.), unlike the header files.
# Because the 1.0 core branch includes ref pages for extensions,
# all the extension interfaces need to be generated, even though
# none are used by the core spec itself.
genOpts['apiinc'] = [
DocOutputGenerator,
DocGeneratorOptions(
conventions = conventions,
filename = 'timeMarker',
directory = directory,
apiname = 'vulkan',
profile = None,
versions = featuresPat,
emitversions = featuresPat,
defaultExtensions = None,
addExtensions = addExtensionsPat,
removeExtensions = removeExtensionsPat,
emitExtensions = emitExtensionsPat,
prefixText = prefixStrings + vkPrefixStrings,
apicall = '',
apientry = '',
apientryp = '*',
alignFuncParam = 48,
expandEnumerants = False)
]
# API names to validate man/api spec includes & links
genOpts['vkapi.py'] = [
PyOutputGenerator,
DocGeneratorOptions(
conventions = conventions,
filename = 'vkapi.py',
directory = directory,
apiname = 'vulkan',
profile = None,
versions = featuresPat,
emitversions = featuresPat,
defaultExtensions = None,
addExtensions = addExtensionsPat,
removeExtensions = removeExtensionsPat,
emitExtensions = emitExtensionsPat)
]
# API validity files for spec
genOpts['validinc'] = [
ValidityOutputGenerator,
DocGeneratorOptions(
conventions = conventions,
filename = 'timeMarker',
directory = directory,
apiname = 'vulkan',
profile = None,
versions = featuresPat,
emitversions = featuresPat,
defaultExtensions = None,
addExtensions = addExtensionsPat,
removeExtensions = removeExtensionsPat,
emitExtensions = emitExtensionsPat)
]
# API host sync table files for spec
genOpts['hostsyncinc'] = [
HostSynchronizationOutputGenerator,
DocGeneratorOptions(
conventions = conventions,
filename = 'timeMarker',
directory = directory,
apiname = 'vulkan',
profile = None,
versions = featuresPat,
emitversions = featuresPat,
defaultExtensions = None,
addExtensions = addExtensionsPat,
removeExtensions = removeExtensionsPat,
emitExtensions = emitExtensionsPat)
]
# Extension metainformation for spec extension appendices
genOpts['extinc'] = [
ExtensionMetaDocOutputGenerator,
ExtensionMetaDocGeneratorOptions(
conventions = conventions,
filename = 'timeMarker',
directory = directory,
apiname = 'vulkan',
profile = None,
versions = featuresPat,
emitversions = None,
defaultExtensions = defaultExtensions,
addExtensions = None,
removeExtensions = None,
emitExtensions = emitExtensionsPat)
]
# Platform extensions, in their own header files
# Each element of the platforms[] array defines information for
# generating a single platform:
# [0] is the generated header file name
# [1] is the set of platform extensions to generate
# [2] is additional extensions whose interfaces should be considered,
# but suppressed in the output, to avoid duplicate definitions of
# dependent types like VkDisplayKHR and VkSurfaceKHR which come from
# non-platform extensions.
# Track all platform extensions, for exclusion from vulkan_core.h
allPlatformExtensions = []
# Extensions suppressed for all platforms.
# Covers common WSI extension types.
commonSuppressExtensions = [ 'VK_KHR_display', 'VK_KHR_swapchain' ]
platforms = [
[ 'vulkan_android.h', [ 'VK_KHR_android_surface',
'VK_ANDROID_external_memory_android_hardware_buffer'
], commonSuppressExtensions ],
[ 'vulkan_fuchsia.h', [ 'VK_FUCHSIA_imagepipe_surface'], commonSuppressExtensions ],
[ 'vulkan_ggp.h', [ 'VK_GGP_stream_descriptor_surface',
'VK_GGP_frame_token' ], commonSuppressExtensions ],
[ 'vulkan_ios.h', [ 'VK_MVK_ios_surface' ], commonSuppressExtensions ],
[ 'vulkan_macos.h', [ 'VK_MVK_macos_surface' ], commonSuppressExtensions ],
[ 'vulkan_vi.h', [ 'VK_NN_vi_surface' ], commonSuppressExtensions ],
[ 'vulkan_wayland.h', [ 'VK_KHR_wayland_surface' ], commonSuppressExtensions ],
[ 'vulkan_win32.h', [ 'VK_.*_win32(|_.*)', 'VK_EXT_full_screen_exclusive' ],
commonSuppressExtensions +
[ 'VK_KHR_external_semaphore',
'VK_KHR_external_memory_capabilities',
'VK_KHR_external_fence',
'VK_KHR_external_fence_capabilities',
'VK_KHR_get_surface_capabilities2',
'VK_NV_external_memory_capabilities',
] ],
[ 'vulkan_xcb.h', [ 'VK_KHR_xcb_surface' ], commonSuppressExtensions ],
[ 'vulkan_xlib.h', [ 'VK_KHR_xlib_surface' ], commonSuppressExtensions ],
[ 'vulkan_xlib_xrandr.h', [ 'VK_EXT_acquire_xlib_display' ], commonSuppressExtensions ],
[ 'vulkan_metal.h', [ 'VK_EXT_metal_surface' ], commonSuppressExtensions ],
]
for platform in platforms:
headername = platform[0]
allPlatformExtensions += platform[1]
addPlatformExtensionsRE = makeREstring(
platform[1] + platform[2], strings_are_regex=True)
emitPlatformExtensionsRE = makeREstring(
platform[1], strings_are_regex=True)
opts = CGeneratorOptions(
conventions = conventions,
filename = headername,
directory = directory,
apiname = 'vulkan',
profile = None,
versions = featuresPat,
emitversions = None,
defaultExtensions = None,
addExtensions = addPlatformExtensionsRE,
removeExtensions = None,
emitExtensions = emitPlatformExtensionsRE,
prefixText = prefixStrings + vkPrefixStrings,
genFuncPointers = True,
protectFile = protectFile,
protectFeature = False,
protectProto = '#ifndef',
protectProtoStr = 'VK_NO_PROTOTYPES',
apicall = 'VKAPI_ATTR ',
apientry = 'VKAPI_CALL ',
apientryp = 'VKAPI_PTR *',
alignFuncParam = 48,
genEnumBeginEndRange = True)
genOpts[headername] = [ COutputGenerator, opts ]
# Header for core API + extensions.
# To generate just the core API,
# change to 'defaultExtensions = None' below.
#
# By default this adds all enabled, non-platform extensions.
# It removes all platform extensions (from the platform headers options
# constructed above) as well as any explicitly specified removals.
removeExtensionsPat = makeREstring(
allPlatformExtensions + removeExtensions, None, strings_are_regex=True)
genOpts['vulkan_core.h'] = [
COutputGenerator,
CGeneratorOptions(
conventions = conventions,
filename = 'vulkan_core.h',
directory = directory,
apiname = 'vulkan',
profile = None,
versions = featuresPat,
emitversions = featuresPat,
defaultExtensions = defaultExtensions,
addExtensions = None,
removeExtensions = removeExtensionsPat,
emitExtensions = emitExtensionsPat,
prefixText = prefixStrings + vkPrefixStrings,
genFuncPointers = True,
protectFile = protectFile,
protectFeature = False,
protectProto = '#ifndef',
protectProtoStr = 'VK_NO_PROTOTYPES',
apicall = 'VKAPI_ATTR ',
apientry = 'VKAPI_CALL ',
apientryp = 'VKAPI_PTR *',
alignFuncParam = 48,
genEnumBeginEndRange = True)
]
# Unused - vulkan10.h target.
# It is possible to generate a header with just the Vulkan 1.0 +
# extension interfaces defined, but since the promoted KHR extensions
# are now defined in terms of the 1.1 interfaces, such a header is very
# similar to vulkan_core.h.
genOpts['vulkan10.h'] = [
COutputGenerator,
CGeneratorOptions(
conventions = conventions,
filename = 'vulkan10.h',
directory = directory,
apiname = 'vulkan',
profile = None,
versions = 'VK_VERSION_1_0',
emitversions = 'VK_VERSION_1_0',
defaultExtensions = defaultExtensions,
addExtensions = None,
removeExtensions = removeExtensionsPat,
emitExtensions = emitExtensionsPat,
prefixText = prefixStrings + vkPrefixStrings,
genFuncPointers = True,
protectFile = protectFile,
protectFeature = False,
protectProto = '#ifndef',
protectProtoStr = 'VK_NO_PROTOTYPES',
apicall = 'VKAPI_ATTR ',
apientry = 'VKAPI_CALL ',
apientryp = 'VKAPI_PTR *',
alignFuncParam = 48)
]
genOpts['alias.h'] = [
COutputGenerator,
CGeneratorOptions(
conventions = conventions,
filename = 'alias.h',
directory = directory,
apiname = 'vulkan',
profile = None,
versions = featuresPat,
emitversions = featuresPat,
defaultExtensions = defaultExtensions,
addExtensions = None,
removeExtensions = removeExtensionsPat,
emitExtensions = emitExtensionsPat,
prefixText = None,
genFuncPointers = False,
protectFile = False,
protectFeature = False,
protectProto = '',
protectProtoStr = '',
apicall = '',
apientry = '',
apientryp = '',
alignFuncParam = 36)
]
def genTarget(args):
"""Generate a target based on the options in the matching genOpts{} object.
This is encapsulated in a function so it can be profiled and/or timed.
The args parameter is an parsed argument object containing the following
fields that are used:
- target - target to generate
- directory - directory to generate it in
- protect - True if re-inclusion wrappers should be created
- extensions - list of additional extensions to include in generated interfaces"""
# Create generator options with specified parameters
makeGenOpts(args)
if args.target in genOpts:
createGenerator = genOpts[args.target][0]
options = genOpts[args.target][1]
if not args.quiet:
write('* Building', options.filename, file=sys.stderr)
write('* options.versions =', options.versions, file=sys.stderr)
write('* options.emitversions =', options.emitversions, file=sys.stderr)
write('* options.defaultExtensions =', options.defaultExtensions, file=sys.stderr)
write('* options.addExtensions =', options.addExtensions, file=sys.stderr)
write('* options.removeExtensions =', options.removeExtensions, file=sys.stderr)
write('* options.emitExtensions =', options.emitExtensions, file=sys.stderr)
startTimer(args.time)
gen = createGenerator(errFile=errWarn,
warnFile=errWarn,
diagFile=diag)
reg.setGenerator(gen)
reg.apiGen(options)
if not args.quiet:
write('* Generated', options.filename, file=sys.stderr)
endTimer(args.time, '* Time to generate ' + options.filename + ' =')
else:
write('No generator options for unknown target:',
args.target, file=sys.stderr)
# -feature name
# -extension name
# For both, "name" may be a single name, or a space-separated list
# of names, or a regular expression.
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('-defaultExtensions', action='store',
default='vulkan',
help='Specify a single class of extensions to add to targets')
parser.add_argument('-extension', action='append',
default=[],
help='Specify an extension or extensions to add to targets')
parser.add_argument('-removeExtensions', action='append',
default=[],
help='Specify an extension or extensions to remove from targets')
parser.add_argument('-emitExtensions', action='append',
default=[],
help='Specify an extension or extensions to emit in targets')
parser.add_argument('-feature', action='append',
default=[],
help='Specify a core API feature name or names to add to targets')
parser.add_argument('-debug', action='store_true',
help='Enable debugging')
parser.add_argument('-dump', action='store_true',
help='Enable dump to stderr')
parser.add_argument('-diagfile', action='store',
default=None,
help='Write diagnostics to specified file')
parser.add_argument('-errfile', action='store',
default=None,
help='Write errors and warnings to specified file instead of stderr')
parser.add_argument('-noprotect', dest='protect', action='store_false',
help='Disable inclusion protection in output headers')
parser.add_argument('-profile', action='store_true',
help='Enable profiling')
parser.add_argument('-registry', action='store',
default='vk.xml',
help='Use specified registry file instead of vk.xml')
parser.add_argument('-time', action='store_true',
help='Enable timing')
parser.add_argument('-validate', action='store_true',
help='Enable group validation')
parser.add_argument('-o', action='store', dest='directory',
default='.',
help='Create target and related files in specified directory')
parser.add_argument('target', metavar='target', nargs='?',
help='Specify target')
parser.add_argument('-quiet', action='store_true', default=True,
help='Suppress script output during normal execution.')
parser.add_argument('-verbose', action='store_false', dest='quiet', default=True,
help='Enable script output during normal execution.')
args = parser.parse_args()
# This splits arguments which are space-separated lists
args.feature = [name for arg in args.feature for name in arg.split()]
args.extension = [name for arg in args.extension for name in arg.split()]
# Load & parse registry
reg = Registry()
startTimer(args.time)
tree = etree.parse(args.registry)
endTimer(args.time, '* Time to make ElementTree =')
if args.debug:
pdb.run('reg.loadElementTree(tree)')
else:
startTimer(args.time)
reg.loadElementTree(tree)
endTimer(args.time, '* Time to parse ElementTree =')
if args.validate:
reg.validateGroups()
if args.dump:
write('* Dumping registry to regdump.txt', file=sys.stderr)
reg.dumpReg(filehandle=open('regdump.txt', 'w', encoding='utf-8'))
# create error/warning & diagnostic files
if args.errfile:
errWarn = open(args.errfile, 'w', encoding='utf-8')
else:
errWarn = sys.stderr
if args.diagfile:
diag = open(args.diagfile, 'w', encoding='utf-8')
else:
diag = None
if args.debug:
pdb.run('genTarget(args)')
elif args.profile:
import cProfile
import pstats
cProfile.run('genTarget(args)', 'profile.txt')
p = pstats.Stats('profile.txt')
p.strip_dirs().sort_stats('time').print_stats(50)
else:
genTarget(args)
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