#!/usr/bin/python3 -i
#
# Copyright (c) 2015-2017 The Khronos Group Inc.
# Copyright (c) 2015-2017 Valve Corporation
# Copyright (c) 2015-2017 LunarG, Inc.
# Copyright (c) 2015-2017 Google 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.
#
# Author: Mark Young <marky@lunarg.com>
# Author: Mark Lobodzinski <mark@lunarg.com>
import os,re,sys
import xml.etree.ElementTree as etree
from generator import *
from collections import namedtuple
from common_codegen import *
ADD_INST_CMDS = ['vkCreateInstance',
'vkEnumerateInstanceExtensionProperties',
'vkEnumerateInstanceLayerProperties',
'vkEnumerateInstanceVersion']
#
# LayerDispatchTableGeneratorOptions - subclass of GeneratorOptions.
class LayerDispatchTableGeneratorOptions(GeneratorOptions):
def __init__(self,
filename = None,
directory = '.',
apiname = None,
profile = None,
versions = '.*',
emitversions = '.*',
defaultExtensions = None,
addExtensions = None,
removeExtensions = None,
emitExtensions = None,
sortProcedure = regSortFeatures,
prefixText = "",
genFuncPointers = True,
protectFile = True,
protectFeature = True,
apicall = '',
apientry = '',
apientryp = '',
indentFuncProto = True,
indentFuncPointer = False,
alignFuncParam = 0,
expandEnumerants = True):
GeneratorOptions.__init__(self, filename, directory, apiname, profile,
versions, emitversions, defaultExtensions,
addExtensions, removeExtensions, emitExtensions, sortProcedure)
self.prefixText = prefixText
self.prefixText = None
self.apicall = apicall
self.apientry = apientry
self.apientryp = apientryp
self.alignFuncParam = alignFuncParam
self.expandEnumerants = expandEnumerants
#
# LayerDispatchTableOutputGenerator - subclass of OutputGenerator.
# Generates dispatch table helper header files for LVL
class LayerDispatchTableOutputGenerator(OutputGenerator):
"""Generate dispatch tables header based on XML element attributes"""
def __init__(self,
errFile = sys.stderr,
warnFile = sys.stderr,
diagFile = sys.stdout):
OutputGenerator.__init__(self, errFile, warnFile, diagFile)
# Internal state - accumulators for different inner block text
self.ext_instance_dispatch_list = [] # List of extension entries for instance dispatch list
self.ext_device_dispatch_list = [] # List of extension entries for device dispatch list
self.core_commands = [] # List of CommandData records for core Vulkan commands
self.ext_commands = [] # List of CommandData records for extension Vulkan commands
self.CommandParam = namedtuple('CommandParam', ['type', 'name', 'cdecl'])
self.CommandData = namedtuple('CommandData', ['name', 'ext_name', 'ext_type', 'protect', 'return_type', 'handle_type', 'params', 'cdecl'])
#
# Called once at the beginning of each run
def beginFile(self, genOpts):
OutputGenerator.beginFile(self, genOpts)
# User-supplied prefix text, if any (list of strings)
if (genOpts.prefixText):
for s in genOpts.prefixText:
write(s, file=self.outFile)
# File Comment
file_comment = '// *** THIS FILE IS GENERATED - DO NOT EDIT ***\n'
file_comment += '// See layer_dispatch_table_generator.py for modifications\n'
write(file_comment, file=self.outFile)
# Copyright Notice
copyright = '/*\n'
copyright += ' * Copyright (c) 2015-2018 The Khronos Group Inc.\n'
copyright += ' * Copyright (c) 2015-2018 Valve Corporation\n'
copyright += ' * Copyright (c) 2015-2018 LunarG, Inc.\n'
copyright += ' *\n'
copyright += ' * Licensed under the Apache License, Version 2.0 (the "License");\n'
copyright += ' * you may not use this file except in compliance with the License.\n'
copyright += ' * You may obtain a copy of the License at\n'
copyright += ' *\n'
copyright += ' * http://www.apache.org/licenses/LICENSE-2.0\n'
copyright += ' *\n'
copyright += ' * Unless required by applicable law or agreed to in writing, software\n'
copyright += ' * distributed under the License is distributed on an "AS IS" BASIS,\n'
copyright += ' * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n'
copyright += ' * See the License for the specific language governing permissions and\n'
copyright += ' * limitations under the License.\n'
copyright += ' *\n'
copyright += ' * Author: Mark Lobodzinski <mark@lunarg.com>\n'
copyright += ' * Author: Mark Young <marky@lunarg.com>\n'
copyright += ' */\n'
preamble = ''
if self.genOpts.filename == 'vk_layer_dispatch_table.h':
preamble += '#pragma once\n'
preamble += '\n'
preamble += 'typedef PFN_vkVoidFunction (VKAPI_PTR *PFN_GetPhysicalDeviceProcAddr)(VkInstance instance, const char* pName);\n'
write(copyright, file=self.outFile)
write(preamble, file=self.outFile)
#
# Write generate and write dispatch tables to output file
def endFile(self):
file_data = ''
if self.genOpts.filename == 'vk_layer_dispatch_table.h':
file_data += self.OutputLayerInstanceDispatchTable()
file_data += self.OutputLayerDeviceDispatchTable()
write(file_data, file=self.outFile);
# Finish processing in superclass
OutputGenerator.endFile(self)
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
self.featureExtraProtect = GetFeatureProtect(interface)
enums = interface[0].findall('enum')
self.currentExtension = ''
self.type = interface.get('type')
self.num_commands = 0
name = interface.get('name')
self.currentExtension = name
#
# Process commands, adding to appropriate dispatch tables
def genCmd(self, cmdinfo, name, alias):
OutputGenerator.genCmd(self, cmdinfo, name, alias)
# Get first param type
params = cmdinfo.elem.findall('param')
info = self.getTypeNameTuple(params[0])
self.num_commands += 1
if 'android' not in name:
self.AddCommandToDispatchList(self.currentExtension, self.type, name, cmdinfo, info[0])
def endFeature(self):
# Finish processing in superclass
OutputGenerator.endFeature(self)
#
# Retrieve the value of the len tag
def getLen(self, param):
result = None
len = param.attrib.get('len')
if len and len != 'null-terminated':
# For string arrays, 'len' can look like 'count,null-terminated',
# indicating that we have a null terminated array of strings. We
# strip the null-terminated from the 'len' field and only return
# the parameter specifying the string count
if 'null-terminated' in len:
result = len.split(',')[0]
else:
result = len
result = str(result).replace('::', '->')
return result
#
# Determine if this API should be ignored or added to the instance or device dispatch table
def AddCommandToDispatchList(self, extension_name, extension_type, name, cmdinfo, handle_type):
handle = self.registry.tree.find("types/type/[name='" + handle_type + "'][@category='handle']")
return_type = cmdinfo.elem.find('proto/type')
if (return_type is not None and return_type.text == 'void'):
return_type = None
cmd_params = []
# Generate a list of commands for use in printing the necessary
# core instance terminator prototypes
params = cmdinfo.elem.findall('param')
lens = set()
for param in params:
len = self.getLen(param)
if len:
lens.add(len)
paramsInfo = []
for param in params:
paramInfo = self.getTypeNameTuple(param)
param_type = paramInfo[0]
param_name = paramInfo[1]
param_cdecl = self.makeCParamDecl(param, 0)
cmd_params.append(self.CommandParam(type=param_type, name=param_name,
cdecl=param_cdecl))
if handle is not None and handle_type != 'VkInstance' and handle_type != 'VkPhysicalDevice':
# The Core Vulkan code will be wrapped in a feature called VK_VERSION_#_#
# For example: VK_VERSION_1_0 wraps the core 1.0 Vulkan functionality
if 'VK_VERSION_' in extension_name:
self.core_commands.append(
self.CommandData(name=name, ext_name=extension_name,
ext_type='device',
protect=self.featureExtraProtect,
return_type = return_type,
handle_type = handle_type,
params = cmd_params,
cdecl=self.makeCDecls(cmdinfo.elem)[0]))
else:
self.ext_device_dispatch_list.append((name, self.featureExtraProtect))
self.ext_commands.append(
self.CommandData(name=name, ext_name=extension_name,
ext_type=extension_type,
protect=self.featureExtraProtect,
return_type = return_type,
handle_type = handle_type,
params = cmd_params,
cdecl=self.makeCDecls(cmdinfo.elem)[0]))
else:
# The Core Vulkan code will be wrapped in a feature called VK_VERSION_#_#
# For example: VK_VERSION_1_0 wraps the core 1.0 Vulkan functionality
if 'VK_VERSION_' in extension_name:
self.core_commands.append(
self.CommandData(name=name, ext_name=extension_name,
ext_type='instance',
protect=self.featureExtraProtect,
return_type = return_type,
handle_type = handle_type,
params = cmd_params,
cdecl=self.makeCDecls(cmdinfo.elem)[0]))
else:
self.ext_instance_dispatch_list.append((name, self.featureExtraProtect))
self.ext_commands.append(
self.CommandData(name=name, ext_name=extension_name,
ext_type=extension_type,
protect=self.featureExtraProtect,
return_type = return_type,
handle_type = handle_type,
params = cmd_params,
cdecl=self.makeCDecls(cmdinfo.elem)[0]))
#
# Retrieve the type and name for a parameter
def getTypeNameTuple(self, param):
type = ''
name = ''
for elem in param:
if elem.tag == 'type':
type = noneStr(elem.text)
elif elem.tag == 'name':
name = noneStr(elem.text)
return (type, name)
#
# Create a layer instance dispatch table from the appropriate list and return it as a string
def OutputLayerInstanceDispatchTable(self):
commands = []
table = ''
cur_extension_name = ''
table += '// Instance function pointer dispatch table\n'
table += 'typedef struct VkLayerInstanceDispatchTable_ {\n'
# First add in an entry for GetPhysicalDeviceProcAddr. This will not
# ever show up in the XML or header, so we have to manually add it.
table += ' // Manually add in GetPhysicalDeviceProcAddr entry\n'
table += ' PFN_GetPhysicalDeviceProcAddr GetPhysicalDeviceProcAddr;\n'
for x in range(0, 2):
if x == 0:
commands = self.core_commands
else:
commands = self.ext_commands
for cur_cmd in commands:
is_inst_handle_type = cur_cmd.name in ADD_INST_CMDS or cur_cmd.handle_type == 'VkInstance' or cur_cmd.handle_type == 'VkPhysicalDevice'
if is_inst_handle_type:
if cur_cmd.ext_name != cur_extension_name:
if 'VK_VERSION_' in cur_cmd.ext_name:
table += '\n // ---- Core %s commands\n' % cur_cmd.ext_name[11:]
else:
table += '\n // ---- %s extension commands\n' % cur_cmd.ext_name
cur_extension_name = cur_cmd.ext_name
# Remove 'vk' from proto name
base_name = cur_cmd.name[2:]
if cur_cmd.protect is not None:
table += '#ifdef %s\n' % cur_cmd.protect
table += ' PFN_%s %s;\n' % (cur_cmd.name, base_name)
if cur_cmd.protect is not None:
table += '#endif // %s\n' % cur_cmd.protect
table += '} VkLayerInstanceDispatchTable;\n\n'
return table
#
# Create a layer device dispatch table from the appropriate list and return it as a string
def OutputLayerDeviceDispatchTable(self):
commands = []
table = ''
cur_extension_name = ''
table += '// Device function pointer dispatch table\n'
table += 'typedef struct VkLayerDispatchTable_ {\n'
for x in range(0, 2):
if x == 0:
commands = self.core_commands
else:
commands = self.ext_commands
for cur_cmd in commands:
is_inst_handle_type = cur_cmd.name in ADD_INST_CMDS or cur_cmd.handle_type == 'VkInstance' or cur_cmd.handle_type == 'VkPhysicalDevice'
if not is_inst_handle_type:
if cur_cmd.ext_name != cur_extension_name:
if 'VK_VERSION_' in cur_cmd.ext_name:
table += '\n // ---- Core %s commands\n' % cur_cmd.ext_name[11:]
else:
table += '\n // ---- %s extension commands\n' % cur_cmd.ext_name
cur_extension_name = cur_cmd.ext_name
# Remove 'vk' from proto name
base_name = cur_cmd.name[2:]
if cur_cmd.protect is not None:
table += '#ifdef %s\n' % cur_cmd.protect
table += ' PFN_%s %s;\n' % (cur_cmd.name, base_name)
if cur_cmd.protect is not None:
table += '#endif // %s\n' % cur_cmd.protect
table += '} VkLayerDispatchTable;\n\n'
return table