| /* Copyright (c) 2015-2017 The Khronos Group Inc. |
| * Copyright (c) 2015-2017 Valve Corporation |
| * Copyright (c) 2015-2017 LunarG, 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 <mark@lunarg.com> |
| * Author: Courtney Goeltzenleuchter <courtney@LunarG.com> |
| * Author: Dave Houlton <daveh@lunarg.com> |
| */ |
| |
| #pragma once |
| #include <stdbool.h> |
| #include <string> |
| #include <vector> |
| #include <set> |
| #include "vk_format_utils.h" |
| #include "vk_layer_logging.h" |
| |
| #ifndef WIN32 |
| #include <strings.h> // For ffs() |
| #else |
| #include <intrin.h> // For __lzcnt() |
| #endif |
| |
| #ifdef __cplusplus |
| // Traits objects to allow string_join to operate on collections of const char * |
| template <typename String> |
| struct StringJoinSizeTrait { |
| static size_t size(const String &str) { return str.size(); } |
| }; |
| |
| template <> |
| struct StringJoinSizeTrait<const char *> { |
| static size_t size(const char *str) { |
| if (!str) return 0; |
| return strlen(str); |
| } |
| }; |
| // Similar to perl/python join |
| // * String must support size, reserve, append, and be default constructable |
| // * StringCollection must support size, const forward iteration, and store |
| // strings compatible with String::append |
| // * Accessor trait can be set if default accessors (compatible with string |
| // and const char *) don't support size(StringCollection::value_type &) |
| // |
| // Return type based on sep type |
| template <typename String = std::string, typename StringCollection = std::vector<String>, |
| typename Accessor = StringJoinSizeTrait<typename StringCollection::value_type>> |
| static inline String string_join(const String &sep, const StringCollection &strings) { |
| String joined; |
| const size_t count = strings.size(); |
| if (!count) return joined; |
| |
| // Prereserved storage, s.t. we will execute in linear time (avoids reallocation copies) |
| size_t reserve = (count - 1) * sep.size(); |
| for (const auto &str : strings) { |
| reserve += Accessor::size(str); // abstracted to allow const char * type in StringCollection |
| } |
| joined.reserve(reserve + 1); |
| |
| // Seps only occur *between* strings entries, so first is special |
| auto current = strings.cbegin(); |
| joined.append(*current); |
| ++current; |
| for (; current != strings.cend(); ++current) { |
| joined.append(sep); |
| joined.append(*current); |
| } |
| return joined; |
| } |
| |
| // Requires StringCollection::value_type has a const char * constructor and is compatible the string_join::String above |
| template <typename StringCollection = std::vector<std::string>, typename SepString = std::string> |
| static inline SepString string_join(const char *sep, const StringCollection &strings) { |
| return string_join<SepString, StringCollection>(SepString(sep), strings); |
| } |
| |
| // Perl/Python style join operation for general types using stream semantics |
| // Note: won't be as fast as string_join above, but simpler to use (and code) |
| // Note: Modifiable reference doesn't match the google style but does match std style for stream handling and algorithms |
| template <typename Stream, typename String, typename ForwardIt> |
| Stream &stream_join(Stream &stream, const String &sep, ForwardIt first, ForwardIt last) { |
| if (first != last) { |
| stream << *first; |
| ++first; |
| while (first != last) { |
| stream << sep << *first; |
| ++first; |
| } |
| } |
| return stream; |
| } |
| |
| // stream_join For whole collections with forward iterators |
| template <typename Stream, typename String, typename Collection> |
| Stream &stream_join(Stream &stream, const String &sep, const Collection &values) { |
| return stream_join(stream, sep, values.cbegin(), values.cend()); |
| } |
| |
| typedef void *dispatch_key; |
| static inline dispatch_key get_dispatch_key(const void *object) { return (dispatch_key) * (VkLayerDispatchTable **)object; } |
| |
| VK_LAYER_EXPORT VkLayerInstanceCreateInfo *get_chain_info(const VkInstanceCreateInfo *pCreateInfo, VkLayerFunction func); |
| VK_LAYER_EXPORT VkLayerDeviceCreateInfo *get_chain_info(const VkDeviceCreateInfo *pCreateInfo, VkLayerFunction func); |
| |
| static inline bool IsPowerOfTwo(unsigned x) { return x && !(x & (x - 1)); } |
| |
| extern "C" { |
| #endif |
| |
| #define VK_LAYER_API_VERSION VK_MAKE_VERSION(1, 0, VK_HEADER_VERSION) |
| |
| typedef enum VkStringErrorFlagBits { |
| VK_STRING_ERROR_NONE = 0x00000000, |
| VK_STRING_ERROR_LENGTH = 0x00000001, |
| VK_STRING_ERROR_BAD_DATA = 0x00000002, |
| } VkStringErrorFlagBits; |
| typedef VkFlags VkStringErrorFlags; |
| |
| VK_LAYER_EXPORT void layer_debug_report_actions(debug_report_data *report_data, |
| std::vector<VkDebugReportCallbackEXT> &logging_callback, |
| const VkAllocationCallbacks *pAllocator, const char *layer_identifier); |
| |
| VK_LAYER_EXPORT void layer_debug_messenger_actions(debug_report_data *report_data, |
| std::vector<VkDebugUtilsMessengerEXT> &logging_messenger, |
| const VkAllocationCallbacks *pAllocator, const char *layer_identifier); |
| |
| VK_LAYER_EXPORT VkStringErrorFlags vk_string_validate(const int max_length, const char *char_array); |
| VK_LAYER_EXPORT bool white_list(const char *item, const std::set<std::string> &whitelist); |
| |
| static inline int u_ffs(int val) { |
| #ifdef WIN32 |
| unsigned long bit_pos = 0; |
| if (_BitScanForward(&bit_pos, val) != 0) { |
| bit_pos += 1; |
| } |
| return bit_pos; |
| #else |
| return ffs(val); |
| #endif |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |