#!/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 Lobodzinski import os,re,sys import xml.etree.ElementTree as etree from generator import * from collections import namedtuple from common_codegen import * # # DispatchTableHelperOutputGeneratorOptions - subclass of GeneratorOptions. class DispatchTableHelperOutputGeneratorOptions(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, apicall = '', apientry = '', apientryp = '', alignFuncParam = 0, expandEnumerants = True): GeneratorOptions.__init__(self, filename, directory, apiname, profile, versions, emitversions, defaultExtensions, addExtensions, removeExtensions, emitExtensions, sortProcedure) self.prefixText = prefixText self.genFuncPointers = genFuncPointers self.prefixText = None self.apicall = apicall self.apientry = apientry self.apientryp = apientryp self.alignFuncParam = alignFuncParam # # DispatchTableHelperOutputGenerator - subclass of OutputGenerator. # Generates dispatch table helper header files for LVL class DispatchTableHelperOutputGenerator(OutputGenerator): """Generate dispatch table helper 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.instance_dispatch_list = [] # List of entries for instance dispatch list self.device_dispatch_list = [] # List of entries for device dispatch list self.dev_ext_stub_list = [] # List of stub functions for device extension functions self.device_extension_list = [] # List of device extension functions self.extension_type = '' # # Called once at the beginning of each run def beginFile(self, genOpts): OutputGenerator.beginFile(self, genOpts) write("#pragma once", file=self.outFile) # 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 dispatch_helper_generator.py for modifications\n' write(file_comment, file=self.outFile) # Copyright Notice copyright = '/*\n' copyright += ' * Copyright (c) 2015-2017 The Khronos Group Inc.\n' copyright += ' * Copyright (c) 2015-2017 Valve Corporation\n' copyright += ' * Copyright (c) 2015-2017 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: Courtney Goeltzenleuchter \n' copyright += ' * Author: Jon Ashburn \n' copyright += ' * Author: Mark Lobodzinski \n' copyright += ' */\n' preamble = '' preamble += '#include \n' preamble += '#include \n' preamble += '#include \n' write(copyright, file=self.outFile) write(preamble, file=self.outFile) # # Write generate and write dispatch tables to output file def endFile(self): device_table = '' instance_table = '' device_table += self.OutputDispatchTableHelper('device') instance_table += self.OutputDispatchTableHelper('instance') for stub in self.dev_ext_stub_list: write(stub, file=self.outFile) write("\n\n", file=self.outFile) write(device_table, file=self.outFile); write("\n", file=self.outFile) write(instance_table, file=self.outFile); # Finish processing in superclass OutputGenerator.endFile(self) # # Processing at beginning of each feature or extension def beginFeature(self, interface, emit): OutputGenerator.beginFeature(self, interface, emit) self.featureExtraProtect = GetFeatureProtect(interface) self.extension_type = interface.get('type') # # Process commands, adding to appropriate dispatch tables def genCmd(self, cmdinfo, name, alias): OutputGenerator.genCmd(self, cmdinfo, name, alias) avoid_entries = ['vkCreateInstance', 'vkCreateDevice'] # Get first param type params = cmdinfo.elem.findall('param') info = self.getTypeNameTuple(params[0]) if name not in avoid_entries: self.AddCommandToDispatchList(name, info[0], self.featureExtraProtect, cmdinfo) # # Determine if this API should be ignored or added to the instance or device dispatch table def AddCommandToDispatchList(self, name, handle_type, protect, cmdinfo): handle = self.registry.tree.find("types/type/[name='" + handle_type + "'][@category='handle']") if handle == None: return if handle_type != 'VkInstance' and handle_type != 'VkPhysicalDevice' and name != 'vkGetInstanceProcAddr': self.device_dispatch_list.append((name, self.featureExtraProtect)) if "VK_VERSION" not in self.featureName and self.extension_type == 'device': self.device_extension_list.append(name) # Build up stub function return_type = '' decl = self.makeCDecls(cmdinfo.elem)[1] if 'typedef VkResult' in decl: return_type = 'return VK_SUCCESS;' decl = decl.split('*PFN_vk')[1] decl = decl.replace(')(', '(') if return_type == '': decl = 'static VKAPI_ATTR void VKAPI_CALL Stub' + decl else: decl = 'static VKAPI_ATTR VkResult VKAPI_CALL Stub' + decl func_body = ' { ' + return_type + ' };' decl = decl.replace (';', func_body) if self.featureExtraProtect is not None: self.dev_ext_stub_list.append('#ifdef %s' % self.featureExtraProtect) self.dev_ext_stub_list.append(decl) if self.featureExtraProtect is not None: self.dev_ext_stub_list.append('#endif // %s' % self.featureExtraProtect) else: self.instance_dispatch_list.append((name, self.featureExtraProtect)) return # # 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 dispatch table from the appropriate list and return it as a string def OutputDispatchTableHelper(self, table_type): entries = [] table = '' if table_type == 'device': entries = self.device_dispatch_list table += 'static inline void layer_init_device_dispatch_table(VkDevice device, VkLayerDispatchTable *table, PFN_vkGetDeviceProcAddr gpa) {\n' table += ' memset(table, 0, sizeof(*table));\n' table += ' // Device function pointers\n' else: entries = self.instance_dispatch_list table += 'static inline void layer_init_instance_dispatch_table(VkInstance instance, VkLayerInstanceDispatchTable *table, PFN_vkGetInstanceProcAddr gpa) {\n' table += ' memset(table, 0, sizeof(*table));\n' table += ' // Instance function pointers\n' for item in entries: # Remove 'vk' from proto name base_name = item[0][2:] if item[1] is not None: table += '#ifdef %s\n' % item[1] # If we're looking for the proc we are passing in, just point the table to it. This fixes the issue where # a layer overrides the function name for the loader. if (table_type == 'device' and base_name == 'GetDeviceProcAddr'): table += ' table->GetDeviceProcAddr = gpa;\n' elif (table_type != 'device' and base_name == 'GetInstanceProcAddr'): table += ' table->GetInstanceProcAddr = gpa;\n' else: table += ' table->%s = (PFN_%s) gpa(%s, "%s");\n' % (base_name, item[0], table_type, item[0]) if item[0] in self.device_extension_list: stub_check = ' if (table->%s == nullptr) { table->%s = (PFN_%s)Stub%s; }\n' % (base_name, base_name, item[0], base_name) table += stub_check if item[1] is not None: table += '#endif // %s\n' % item[1] table += '}' return table