| COPYRIGHT=u""" |
| /* Copyright © 2021 Intel Corporation |
| * |
| * 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 (including the next |
| * paragraph) 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 |
| from collections import OrderedDict, namedtuple |
| import xml.etree.ElementTree as et |
| |
| from mako.template import Template |
| |
| TEMPLATE_C = Template(COPYRIGHT + """ |
| /* This file generated from ${filename}, don't edit directly. */ |
| |
| #include "vk_log.h" |
| #include "vk_physical_device.h" |
| #include "vk_util.h" |
| |
| static VkResult |
| check_physical_device_features(struct vk_physical_device *physical_device, |
| const VkPhysicalDeviceFeatures *supported, |
| const VkPhysicalDeviceFeatures *enabled, |
| const char *struct_name) |
| { |
| % for flag in pdev_features: |
| if (enabled->${flag} && !supported->${flag}) |
| return vk_errorf(physical_device, VK_ERROR_FEATURE_NOT_PRESENT, |
| "%s.%s not supported", struct_name, "${flag}"); |
| % endfor |
| |
| return VK_SUCCESS; |
| } |
| |
| VkResult |
| vk_physical_device_check_device_features(struct vk_physical_device *physical_device, |
| const VkDeviceCreateInfo *pCreateInfo) |
| { |
| VkPhysicalDevice vk_physical_device = |
| vk_physical_device_to_handle(physical_device); |
| |
| /* Query the device what kind of features are supported. */ |
| VkPhysicalDeviceFeatures2 supported_features2 = { |
| .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2, |
| }; |
| |
| % for f in features: |
| ${f.name} supported_${f.name} = { .pNext = NULL }; |
| % endfor |
| |
| vk_foreach_struct_const(feat, pCreateInfo->pNext) { |
| VkBaseOutStructure *supported = NULL; |
| switch (feat->sType) { |
| % for f in features: |
| case ${f.vk_type}: |
| supported = (VkBaseOutStructure *) &supported_${f.name}; |
| break; |
| % endfor |
| default: |
| break; |
| } |
| |
| /* Not a feature struct. */ |
| if (!supported) |
| continue; |
| |
| /* Check for cycles in the list */ |
| if (supported->pNext != NULL || supported->sType != 0) |
| return VK_ERROR_UNKNOWN; |
| |
| supported->sType = feat->sType; |
| __vk_append_struct(&supported_features2, supported); |
| } |
| |
| physical_device->dispatch_table.GetPhysicalDeviceFeatures2( |
| vk_physical_device, &supported_features2); |
| |
| if (pCreateInfo->pEnabledFeatures) { |
| VkResult result = |
| check_physical_device_features(physical_device, |
| &supported_features2.features, |
| pCreateInfo->pEnabledFeatures, |
| "VkPhysicalDeviceFeatures"); |
| if (result != VK_SUCCESS) |
| return result; |
| } |
| |
| /* Iterate through additional feature structs */ |
| vk_foreach_struct_const(feat, pCreateInfo->pNext) { |
| /* Check each feature boolean for given structure. */ |
| switch (feat->sType) { |
| case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2: { |
| const VkPhysicalDeviceFeatures2 *features2 = (const void *)feat; |
| VkResult result = |
| check_physical_device_features(physical_device, |
| &supported_features2.features, |
| &features2->features, |
| "VkPhysicalDeviceFeatures2.features"); |
| if (result != VK_SUCCESS) |
| return result; |
| break; |
| } |
| % for f in features: |
| case ${f.vk_type} : { |
| ${f.name} *a = &supported_${f.name}; |
| ${f.name} *b = (${f.name} *) feat; |
| % for flag in f.vk_flags: |
| if (b->${flag} && !a->${flag}) |
| return vk_errorf(physical_device, VK_ERROR_FEATURE_NOT_PRESENT, |
| "%s.%s not supported", "${f.name}", "${flag}"); |
| % endfor |
| break; |
| } |
| % endfor |
| default: |
| break; |
| } |
| } // for each extension structure |
| return VK_SUCCESS; |
| } |
| |
| """, output_encoding='utf-8') |
| |
| Feature = namedtuple('Feature', 'name vk_type vk_flags') |
| |
| def get_pdev_features(doc): |
| for _type in doc.findall('./types/type'): |
| if _type.attrib.get('name') != 'VkPhysicalDeviceFeatures': |
| continue |
| |
| flags = [] |
| |
| for p in _type.findall('./member'): |
| assert p.find('./type').text == 'VkBool32' |
| flags.append(p.find('./name').text) |
| |
| return flags |
| |
| return None |
| |
| def get_features(doc): |
| features = OrderedDict() |
| |
| provisional_structs = set() |
| |
| # we want to ignore struct types that are part of provisional extensions |
| for _extension in doc.findall('./extensions/extension'): |
| if _extension.attrib.get('provisional') != 'true': |
| continue |
| for p in _extension.findall('./require/type'): |
| provisional_structs.add(p.attrib.get('name')) |
| |
| # parse all struct types where structextends VkPhysicalDeviceFeatures2 |
| for _type in doc.findall('./types/type'): |
| if _type.attrib.get('category') != 'struct': |
| continue |
| if _type.attrib.get('structextends') != 'VkPhysicalDeviceFeatures2,VkDeviceCreateInfo': |
| continue |
| if _type.attrib.get('name') in provisional_structs: |
| continue |
| |
| # find Vulkan structure type |
| for elem in _type: |
| if "STRUCTURE_TYPE" in str(elem.attrib): |
| s_type = elem.attrib.get('values') |
| |
| # collect a list of feature flags |
| flags = [] |
| |
| for p in _type.findall('./member'): |
| m_name = p.find('./name').text |
| if m_name == 'pNext': |
| pass |
| elif m_name == 'sType': |
| s_type = p.attrib.get('values') |
| else: |
| assert p.find('./type').text == 'VkBool32' |
| flags.append(m_name) |
| |
| feat = Feature(name=_type.attrib.get('name'), vk_type=s_type, vk_flags=flags) |
| features[_type.attrib.get('name')] = feat |
| |
| return features.values() |
| |
| def get_features_from_xml(xml_files): |
| pdev_features = None |
| features = [] |
| |
| for filename in xml_files: |
| doc = et.parse(filename) |
| features += get_features(doc) |
| if not pdev_features: |
| pdev_features = get_pdev_features(doc) |
| |
| return pdev_features, features |
| |
| |
| def main(): |
| parser = argparse.ArgumentParser() |
| parser.add_argument('--out-c', required=True, help='Output C file.') |
| parser.add_argument('--xml', |
| help='Vulkan API XML file.', |
| required=True, action='append', dest='xml_files') |
| args = parser.parse_args() |
| |
| pdev_features, features = get_features_from_xml(args.xml_files) |
| |
| environment = { |
| 'filename': os.path.basename(__file__), |
| 'pdev_features': pdev_features, |
| 'features': features, |
| } |
| |
| try: |
| with open(args.out_c, 'wb') as f: |
| f.write(TEMPLATE_C.render(**environment)) |
| except Exception: |
| # In the event there's an error, this imports some helpers from mako |
| # to print a useful stack trace and prints it, then exits with |
| # status 1, if python is run with debug; otherwise it just raises |
| # the exception |
| import sys |
| from mako import exceptions |
| print(exceptions.text_error_template().render(), file=sys.stderr) |
| sys.exit(1) |
| |
| if __name__ == '__main__': |
| main() |