| #!/usr/bin/env python3 |
| # |
| # VK |
| # |
| # Copyright (C) 2015 LunarG, Inc. |
| # |
| # Permission is hereby granted, free of charge, to any person obtaining a |
| # copy of this software and associated documentation files (the "Software"), |
| # to deal in the Software without restriction, including without limitation |
| # the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| # and/or sell copies of the Software, and to permit persons to whom the |
| # Software is furnished to do so, subject to the following conditions: |
| # |
| # The above copyright notice and this permission notice shall be included |
| # in all copies or substantial portions of the Software. |
| # |
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| # DEALINGS IN THE SOFTWARE. |
| |
| import argparse |
| import os |
| import sys |
| import vulkan |
| import platform |
| |
| # vk_layer_documentation_generate.py overview |
| # This script is intended to generate documentation based on vulkan layers |
| # It parses known validation layer headers for details of the validation checks |
| # It parses validation layer source files for specific code where checks are implemented |
| # structs in a human-readable txt format, as well as utility functions |
| # to print enum values as strings |
| |
| # NOTE : Initially the script is performing validation of a hand-written document |
| # Right now it does 3 checks: |
| # 1. Verify ENUM codes declared in source are documented |
| # 2. Verify ENUM codes in document are declared in source |
| # 3. Verify API function names in document are in the actual API header (vulkan.py) |
| # Currently script will flag errors in all of these cases |
| |
| # TODO : Need a formal specification of the syntax for doc generation |
| # Initially, these are the basics: |
| # 1. Validation checks have unique ENUM values defined in validation layer header |
| # 2. ENUM includes comments for 1-line overview of check and more detailed description |
| # 3. Actual code implementing checks includes ENUM value in callback |
| # 4. Code to test checks should include reference to ENUM |
| |
| |
| # TODO : Need list of known validation layers to use as default input |
| # Just a couple of flat lists right now, but may need to make this input file |
| # or at least a more dynamic data structure |
| layer_inputs = { 'draw_state' : {'header' : 'layers/draw_state.h', |
| 'source' : 'layers/draw_state.cpp', |
| 'generated' : False, |
| 'error_enum' : 'DRAW_STATE_ERROR'}, |
| 'mem_tracker' : {'header' : 'layers/mem_tracker.h', |
| 'source' : 'layers/mem_tracker.cpp', |
| 'generated' : False, |
| 'error_enum' : 'MEM_TRACK_ERROR'}, |
| 'shader_checker' : {'header' : 'layers/shader_checker.h', |
| 'source' : 'layers/shader_checker.cpp', |
| 'generated' : False, |
| 'error_enum' : 'SHADER_CHECKER_ERROR'}, |
| 'threading' : {'header' : 'layers/threading.h', |
| 'source' : 'dbuild/layers/threading.cpp', |
| 'generated' : True, |
| 'error_enum' : 'THREADING_CHECKER_ERROR'}, |
| 'object_track' : {'header' : 'layers/object_track.h', |
| 'source' : 'dbuild/layers/object_track.cpp', |
| 'generated' : True, |
| 'error_enum' : 'OBJECT_TRACK_ERROR',}, |
| 'device_limits' : {'header' : 'layers/device_limits.h', |
| 'source' : 'layers/device_limits.cpp', |
| 'generated' : False, |
| 'error_enum' : 'DEV_LIMITS_ERROR',}, |
| 'image' : {'header' : 'layers/image.h', |
| 'source' : 'layers/image.cpp', |
| 'generated' : False, |
| 'error_enum' : 'IMAGE_ERROR',}, |
| 'swapchain' : {'header' : 'layers/swapchain.h', |
| 'source' : 'layers/swapchain.cpp', |
| 'generated' : False, |
| 'error_enum' : 'SWAPCHAIN_ERROR',}, |
| } |
| |
| builtin_headers = [layer_inputs[ln]['header'] for ln in layer_inputs] |
| builtin_source = [layer_inputs[ln]['source'] for ln in layer_inputs] |
| |
| # List of extensions in layers that are included in documentation, but not in vulkan.py API set |
| layer_extension_functions = ['objTrackGetObjects', 'objTrackGetObjectsOfType'] |
| |
| def handle_args(): |
| parser = argparse.ArgumentParser(description='Generate layer documenation from source.') |
| parser.add_argument('--in_headers', required=False, default=builtin_headers, help='The input layer header files from which code will be generated.') |
| parser.add_argument('--in_source', required=False, default=builtin_source, help='The input layer source files from which code will be generated.') |
| parser.add_argument('--layer_doc', required=False, default='layers/vk_validation_layer_details.md', help='Existing layer document to be validated against actual layers.') |
| parser.add_argument('--validate', action='store_true', default=False, help='Validate that there are no mismatches between layer documentation and source. This includes cross-checking the validation checks, and making sure documented Vulkan API calls exist.') |
| parser.add_argument('--print_structs', action='store_true', default=False, help='Primarily a debug option that prints out internal data structs used to generate layer docs.') |
| parser.add_argument('--print_doc_checks', action='store_true', default=False, help='Primarily a debug option that prints out all of the checks that are documented.') |
| return parser.parse_args() |
| |
| # Little helper class for coloring cmd line output |
| class bcolors: |
| |
| def __init__(self): |
| self.GREEN = '\033[0;32m' |
| self.RED = '\033[0;31m' |
| self.ENDC = '\033[0m' |
| if 'Linux' != platform.system(): |
| self.GREEN = '' |
| self.RED = '' |
| self.ENDC = '' |
| |
| def green(self): |
| return self.GREEN |
| |
| def red(self): |
| return self.RED |
| |
| def endc(self): |
| return self.ENDC |
| |
| # Class to parse the layer source code and store details in internal data structs |
| class LayerParser: |
| def __init__(self, header_file_list, source_file_list): |
| self.header_files = header_file_list |
| self.source_files = source_file_list |
| self.layer_dict = {} |
| self.api_dict = {} |
| |
| # Parse layer header files into internal dict data structs |
| def parse(self): |
| # For each header file, parse details into dicts |
| # TODO : Should have a global dict element to track overall list of checks |
| store_enum = False |
| for hf in self.header_files: |
| layer_name = os.path.basename(hf).split('.')[0] |
| self.layer_dict[layer_name] = {} # initialize a new dict for this layer |
| self.layer_dict[layer_name]['CHECKS'] = [] # enum of checks is stored in a list |
| #print('Parsing header file %s as layer name %s' % (hf, layer_name)) |
| with open(hf) as f: |
| for line in f: |
| if True in [line.strip().startswith(comment) for comment in ['//', '/*']]: |
| #print("Skipping comment line: %s" % line) |
| # For now skipping lines starting w/ comment, may use these to capture |
| # documentation in the future |
| continue |
| |
| # Find enums |
| if store_enum: |
| if '}' in line: # we're done with enum definition |
| store_enum = False |
| continue |
| # grab the enum name as a unique check |
| if ',' in line: |
| # TODO : When documentation for a check is contained in the source, |
| # this is where we should also capture that documentation so that |
| # it can then be transformed into desired doc format |
| enum_name = line.split(',')[0].strip() |
| # Flag an error if we have already seen this enum |
| if enum_name in self.layer_dict[layer_name]['CHECKS']: |
| print('ERROR : % layer has duplicate error enum: %s' % (layer_name, enum_name)) |
| self.layer_dict[layer_name]['CHECKS'].append(enum_name) |
| # If the line includes 'typedef', 'enum', and the expected enum name, start capturing enums |
| if False not in [ex in line for ex in ['typedef', 'enum', layer_inputs[layer_name]['error_enum']]]: |
| store_enum = True |
| |
| # For each source file, parse into dicts |
| for sf in self.source_files: |
| #print('Parsing source file %s' % sf) |
| pass |
| # TODO : In the source file we want to see where checks actually occur |
| # Need to build function tree of checks so that we know all of the |
| # checks that occur under a top-level Vulkan API call |
| # Eventually in the validation we can flag ENUMs that aren't being |
| # used in the source, and we can document source code lines as well |
| # as Vulkan API calls where each specific ENUM check is made |
| |
| def print_structs(self): |
| print('This is where I print the data structs') |
| for layer in self.layer_dict: |
| print('Layer %s has %i checks:\n%s' % (layer, len(self.layer_dict[layer]['CHECKS'])-1, "\n\t".join(self.layer_dict[layer]['CHECKS']))) |
| |
| # Class to parse hand-written md layer documentation into a dict and then validate its contents |
| class LayerDoc: |
| def __init__(self, source_file): |
| self.layer_doc_filename = source_file |
| self.txt_color = bcolors() |
| # Main data struct to store info from layer doc |
| self.layer_doc_dict = {} |
| # Comprehensive list of all validation checks recorded in doc |
| self.enum_list = [] |
| |
| # Parse the contents of doc into data struct |
| def parse(self): |
| layer_name = 'INIT' |
| parse_layer_details = False |
| detail_trigger = '| Check | ' |
| parse_pending_work = False |
| pending_trigger = ' Pending Work' |
| parse_overview = False |
| overview_trigger = ' Overview' |
| enum_prefix = '' |
| |
| with open(self.layer_doc_filename) as f: |
| for line in f: |
| if parse_pending_work: |
| if '.' in line and line.strip()[0].isdigit(): |
| todo_item = line.split('.')[1].strip() |
| self.layer_doc_dict[layer_name]['pending'].append(todo_item) |
| if pending_trigger in line and '##' in line: |
| parse_layer_details = False |
| parse_pending_work = True |
| parse_overview = False |
| self.layer_doc_dict[layer_name]['pending'] = [] |
| if parse_layer_details: |
| # Grab details but skip the fomat line with a bunch of '-' chars |
| if '|' in line and line.count('-') < 20: |
| detail_sections = line.split('|') |
| #print("Details elements from line %s: %s" % (line, detail_sections)) |
| check_name = '%s%s' % (enum_prefix, detail_sections[3].strip()) |
| if '_NA' in check_name: |
| # TODO : Should clean up these NA checks in the doc, skipping them for now |
| continue |
| self.enum_list.append(check_name) |
| self.layer_doc_dict[layer_name][check_name] = {} |
| self.layer_doc_dict[layer_name][check_name]['summary_txt'] = detail_sections[1].strip() |
| self.layer_doc_dict[layer_name][check_name]['details_txt'] = detail_sections[2].strip() |
| self.layer_doc_dict[layer_name][check_name]['api_list'] = detail_sections[4].split() |
| self.layer_doc_dict[layer_name][check_name]['tests'] = detail_sections[5].split() |
| self.layer_doc_dict[layer_name][check_name]['notes'] = detail_sections[6].strip() |
| # strip any unwanted commas from api and test names |
| self.layer_doc_dict[layer_name][check_name]['api_list'] = [a.strip(',') for a in self.layer_doc_dict[layer_name][check_name]['api_list']] |
| self.layer_doc_dict[layer_name][check_name]['tests'] = [a.strip(',') for a in self.layer_doc_dict[layer_name][check_name]['tests']] |
| # Trigger details parsing when we have table header |
| if detail_trigger in line: |
| parse_layer_details = True |
| parse_pending_work = False |
| parse_overview = False |
| enum_txt = line.split('|')[3] |
| if '*' in enum_txt: |
| enum_prefix = enum_txt.split()[-1].strip('*').strip() |
| #print('prefix: %s' % enum_prefix) |
| if parse_overview: |
| self.layer_doc_dict[layer_name]['overview'] += line |
| if overview_trigger in line and '##' in line: |
| parse_layer_details = False |
| parse_pending_work = False |
| parse_overview = True |
| layer_name = line.split()[1] |
| self.layer_doc_dict[layer_name] = {} |
| self.layer_doc_dict[layer_name]['overview'] = '' |
| |
| # Verify that checks and api references in layer doc match reality |
| # Report API calls from doc that are not found in API |
| # Report checks from doc that are not in actual layers |
| # Report checks from layers that are not captured in doc |
| def validate(self, layer_dict): |
| # Count number of errors found and return it |
| errors_found = 0 |
| # First we'll go through the doc datastructures and flag any issues |
| for chk in self.enum_list: |
| doc_layer_found = False |
| for real_layer in layer_dict: |
| if chk in layer_dict[real_layer]['CHECKS']: |
| #print('Found actual layer check %s in doc' % (chk)) |
| doc_layer_found = True |
| continue |
| if not doc_layer_found: |
| print(self.txt_color.red() + 'Actual layers do not contain documented check: %s' % (chk) + self.txt_color.endc()) |
| errors_found += 1 |
| # Now go through API names in doc and verify they're real |
| # First we're going to transform proto names from vulkan.py into single list |
| core_api_names = [p.name for p in vulkan.core.protos] |
| wsi_s_names = [p.name for p in vulkan.ext_khr_swapchain.protos] |
| wsi_ds_names = [p.name for p in vulkan.ext_khr_device_swapchain.protos] |
| dbg_rpt_names = [p.name for p in vulkan.debug_report_lunarg.protos] |
| dbg_mrk_names = [p.name for p in vulkan.debug_marker_lunarg.protos] |
| api_names = core_api_names + wsi_s_names + wsi_ds_names + dbg_rpt_names + dbg_mrk_names |
| for ln in self.layer_doc_dict: |
| for chk in self.layer_doc_dict[ln]: |
| if chk in ['overview', 'pending']: |
| continue |
| for api in self.layer_doc_dict[ln][chk]['api_list']: |
| if api[2:] not in api_names and api not in layer_extension_functions: |
| print(self.txt_color.red() + 'Doc references invalid function: %s' % (api) + self.txt_color.endc()) |
| errors_found += 1 |
| # Now go through all of the actual checks in the layers and make sure they're covered in the doc |
| for ln in layer_dict: |
| for chk in layer_dict[ln]['CHECKS']: |
| if chk not in self.enum_list: |
| print(self.txt_color.red() + 'Doc is missing check: %s' % (chk) + self.txt_color.endc()) |
| errors_found += 1 |
| |
| return errors_found |
| |
| # Print all of the checks captured in the doc |
| def print_checks(self): |
| print('Checks captured in doc:\n%s' % ('\n\t'.join(self.enum_list))) |
| |
| def main(argv=None): |
| # Parse args |
| opts = handle_args() |
| # Create parser for layer files |
| layer_parser = LayerParser(opts.in_headers, opts.in_source) |
| # Parse files into internal data structs |
| layer_parser.parse() |
| |
| # Generate requested types of output |
| if opts.print_structs: # Print details of internal data structs |
| layer_parser.print_structs() |
| |
| layer_doc = LayerDoc(opts.layer_doc) |
| layer_doc.parse() |
| if opts.print_doc_checks: |
| layer_doc.print_checks() |
| |
| if opts.validate: |
| num_errors = layer_doc.validate(layer_parser.layer_dict) |
| if (0 == num_errors): |
| txt_color = bcolors() |
| print(txt_color.green() + 'No mismatches found between %s and implementation' % (os.path.basename(opts.layer_doc)) + txt_color.endc()) |
| else: |
| return num_errors |
| return 0 |
| |
| if __name__ == "__main__": |
| sys.exit(main()) |
| |