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/**************************************************************************
*
* Copyright 2014-2019 Valve Software
* Copyright 2015-2019 Google Inc.
* Copyright 2019 LunarG, Inc.
* All Rights Reserved.
*
* 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: Jon Ashburn <jon@lunarg.com>
* Author: Courtney Goeltzenleuchter <courtney@LunarG.com>
* Author: Tobin Ehlis <tobin@lunarg.com>
* Author: Mark Lobodzinski <mark@lunarg.com>
**************************************************************************/
#include "vk_layer_config.h"
#include "vulkan/vk_sdk_platform.h"
#include <fstream>
#include <iostream>
#include <map>
#include <sstream>
#include <string.h>
#include <string>
#include <sys/stat.h>
#include <vulkan/vk_layer.h>
#if defined(_WIN32)
#include <windows.h>
#endif
#define MAX_CHARS_PER_LINE 4096
class ConfigFile {
public:
ConfigFile();
~ConfigFile();
const char *getOption(const std::string &_option);
void setOption(const std::string &_option, const std::string &_val);
std::string vk_layer_disables_env_var{};
private:
bool m_fileIsParsed;
std::map<std::string, std::string> m_valueMap;
std::string FindSettings();
void parseFile(const char *filename);
};
static ConfigFile g_configFileObj;
std::string getEnvironment(const char *variable) {
#if !defined(__ANDROID__) && !defined(_WIN32)
const char *output = getenv(variable);
return output == NULL ? "" : output;
#elif defined(_WIN32)
int size = GetEnvironmentVariable(variable, NULL, 0);
if (size == 0) {
return "";
}
char *buffer = new char[size];
GetEnvironmentVariable(variable, buffer, size);
std::string output = buffer;
delete[] buffer;
return output;
#else
return "";
#endif
}
VK_LAYER_EXPORT const char *getLayerOption(const char *_option) { return g_configFileObj.getOption(_option); }
VK_LAYER_EXPORT const char *GetLayerEnvVar(const char *_option) {
g_configFileObj.vk_layer_disables_env_var = getEnvironment(_option);
return g_configFileObj.vk_layer_disables_env_var.c_str();
}
// If option is NULL or stdout, return stdout, otherwise try to open option
// as a filename. If successful, return file handle, otherwise stdout
VK_LAYER_EXPORT FILE *getLayerLogOutput(const char *_option, const char *layerName) {
FILE *log_output = NULL;
if (!_option || !strcmp("stdout", _option))
log_output = stdout;
else {
log_output = fopen(_option, "w");
if (log_output == NULL) {
if (_option)
std::cout << std::endl
<< layerName << " ERROR: Bad output filename specified: " << _option << ". Writing to STDOUT instead"
<< std::endl
<< std::endl;
log_output = stdout;
}
}
return log_output;
}
// Map option strings to flag enum values
VK_LAYER_EXPORT VkFlags GetLayerOptionFlags(std::string _option, std::unordered_map<std::string, VkFlags> const &enum_data,
uint32_t option_default) {
VkDebugReportFlagsEXT flags = option_default;
std::string option_list = g_configFileObj.getOption(_option.c_str());
while (option_list.length() != 0) {
// Find length of option string
std::size_t option_length = option_list.find(",");
if (option_length == option_list.npos) {
option_length = option_list.size();
}
// Get first option in list
const std::string option = option_list.substr(0, option_length);
auto enum_value = enum_data.find(option);
if (enum_value != enum_data.end()) {
flags |= enum_value->second;
}
// Remove first option from option_list
option_list.erase(0, option_length);
// Remove possible comma separator
std::size_t char_position = option_list.find(",");
if (char_position == 0) {
option_list.erase(char_position, 1);
}
// Remove possible space
char_position = option_list.find(" ");
if (char_position == 0) {
option_list.erase(char_position, 1);
}
}
return flags;
}
VK_LAYER_EXPORT void setLayerOption(const char *_option, const char *_val) { g_configFileObj.setOption(_option, _val); }
// Constructor for ConfigFile. Initialize layers to log error messages to stdout by default. If a vk_layer_settings file is present,
// its settings will override the defaults.
ConfigFile::ConfigFile() : m_fileIsParsed(false) {
m_valueMap["khronos_validation.report_flags"] = "error";
m_valueMap["lunarg_core_validation.report_flags"] = "error";
m_valueMap["lunarg_object_tracker.report_flags"] = "error";
m_valueMap["lunarg_parameter_validation.report_flags"] = "error";
m_valueMap["google_threading.report_flags"] = "error";
m_valueMap["google_unique_objects.report_flags"] = "error";
#ifdef WIN32
// For Windows, enable message logging AND OutputDebugString
m_valueMap["khronos_validation.debug_action"] =
"VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG,VK_DBG_LAYER_ACTION_DEBUG_OUTPUT";
m_valueMap["lunarg_core_validation.debug_action"] =
"VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG,VK_DBG_LAYER_ACTION_DEBUG_OUTPUT";
m_valueMap["lunarg_object_tracker.debug_action"] =
"VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG,VK_DBG_LAYER_ACTION_DEBUG_OUTPUT";
m_valueMap["lunarg_parameter_validation.debug_action"] =
"VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG,VK_DBG_LAYER_ACTION_DEBUG_OUTPUT";
m_valueMap["google_threading.debug_action"] =
"VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG,VK_DBG_LAYER_ACTION_DEBUG_OUTPUT";
m_valueMap["google_unique_objects.debug_action"] =
"VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG,VK_DBG_LAYER_ACTION_DEBUG_OUTPUT";
#else // WIN32
m_valueMap["khronos_validation.debug_action"] = "VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG";
m_valueMap["lunarg_core_validation.debug_action"] = "VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG";
m_valueMap["lunarg_object_tracker.debug_action"] = "VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG";
m_valueMap["lunarg_parameter_validation.debug_action"] = "VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG";
m_valueMap["google_threading.debug_action"] = "VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG";
m_valueMap["google_unique_objects.debug_action"] = "VK_DBG_LAYER_ACTION_DEFAULT,VK_DBG_LAYER_ACTION_LOG_MSG";
#endif // WIN32
m_valueMap["khronos_validation.log_filename"] = "stdout";
m_valueMap["lunarg_core_validation.log_filename"] = "stdout";
m_valueMap["lunarg_object_tracker.log_filename"] = "stdout";
m_valueMap["lunarg_parameter_validation.log_filename"] = "stdout";
m_valueMap["google_threading.log_filename"] = "stdout";
m_valueMap["google_unique_objects.log_filename"] = "stdout";
}
ConfigFile::~ConfigFile() {}
const char *ConfigFile::getOption(const std::string &_option) {
std::map<std::string, std::string>::const_iterator it;
if (!m_fileIsParsed) {
std::string settings_file = FindSettings();
parseFile(settings_file.c_str());
}
if ((it = m_valueMap.find(_option)) == m_valueMap.end())
return "";
else
return it->second.c_str();
}
void ConfigFile::setOption(const std::string &_option, const std::string &_val) {
if (!m_fileIsParsed) {
std::string settings_file = FindSettings();
parseFile(settings_file.c_str());
}
m_valueMap[_option] = _val;
}
std::string ConfigFile::FindSettings() {
struct stat info;
#if defined(WIN32)
HKEY hive;
LSTATUS err = RegOpenKeyEx(HKEY_CURRENT_USER, "Software\\Khronos\\Vulkan\\Settings", 0, KEY_READ, &hive);
if (err == ERROR_SUCCESS) {
char name[2048];
DWORD i = 0, name_size = sizeof(name), type, value, value_size = sizeof(value);
while (ERROR_SUCCESS ==
RegEnumValue(hive, i++, name, &name_size, nullptr, &type, reinterpret_cast<LPBYTE>(&value), &value_size)) {
// Check if the registry entry is a dword with a value of zero
if (type != REG_DWORD || value != 0) {
continue;
}
// Check if this actually points to a file
if ((stat(name, &info) != 0) || !(info.st_mode & S_IFREG)) {
continue;
}
// Use this file
RegCloseKey(hive);
return name;
}
RegCloseKey(hive);
}
#else
std::string search_path = getEnvironment("XDG_DATA_HOME");
if (search_path == "") {
search_path = getEnvironment("HOME");
if (search_path != "") {
search_path += "/.local/share";
}
}
// Use the vk_layer_settings.txt file from here, if it is present
if (search_path != "") {
std::string home_file = search_path + "/vulkan/settings.d/vk_layer_settings.txt";
if (stat(home_file.c_str(), &info) == 0) {
if (info.st_mode & S_IFREG) {
return home_file;
}
}
}
#endif
std::string env_path = getEnvironment("VK_LAYER_SETTINGS_PATH");
// If the path exists use it, else use vk_layer_settings
if (stat(env_path.c_str(), &info) == 0) {
// If this is a directory, look for vk_layer_settings within the directory
if (info.st_mode & S_IFDIR) {
return env_path + "/vk_layer_settings.txt";
}
return env_path;
}
return "vk_layer_settings.txt";
}
void ConfigFile::parseFile(const char *filename) {
std::ifstream file;
char buf[MAX_CHARS_PER_LINE];
m_fileIsParsed = true;
file.open(filename);
if (!file.good()) {
return;
}
// read tokens from the file and form option, value pairs
file.getline(buf, MAX_CHARS_PER_LINE);
while (!file.eof()) {
char option[512];
char value[512];
char *pComment;
// discard any comments delimited by '#' in the line
pComment = strchr(buf, '#');
if (pComment) *pComment = '\0';
if (sscanf(buf, " %511[^\n\t =] = %511[^\n \t]", option, value) == 2) {
std::string optStr(option);
std::string valStr(value);
m_valueMap[optStr] = valStr;
}
file.getline(buf, MAX_CHARS_PER_LINE);
}
}
VK_LAYER_EXPORT void PrintMessageFlags(VkFlags vk_flags, char *msg_flags) {
bool separator = false;
msg_flags[0] = 0;
if (vk_flags & VK_DEBUG_REPORT_DEBUG_BIT_EXT) {
strcat(msg_flags, "DEBUG");
separator = true;
}
if (vk_flags & VK_DEBUG_REPORT_INFORMATION_BIT_EXT) {
if (separator) strcat(msg_flags, ",");
strcat(msg_flags, "INFO");
separator = true;
}
if (vk_flags & VK_DEBUG_REPORT_WARNING_BIT_EXT) {
if (separator) strcat(msg_flags, ",");
strcat(msg_flags, "WARN");
separator = true;
}
if (vk_flags & VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT) {
if (separator) strcat(msg_flags, ",");
strcat(msg_flags, "PERF");
separator = true;
}
if (vk_flags & VK_DEBUG_REPORT_ERROR_BIT_EXT) {
if (separator) strcat(msg_flags, ",");
strcat(msg_flags, "ERROR");
}
}
VK_LAYER_EXPORT void PrintMessageSeverity(VkFlags vk_flags, char *msg_flags) {
bool separator = false;
msg_flags[0] = 0;
if (vk_flags & VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT) {
strcat(msg_flags, "VERBOSE");
separator = true;
}
if (vk_flags & VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT) {
if (separator) strcat(msg_flags, ",");
strcat(msg_flags, "INFO");
separator = true;
}
if (vk_flags & VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT) {
if (separator) strcat(msg_flags, ",");
strcat(msg_flags, "WARN");
separator = true;
}
if (vk_flags & VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT) {
if (separator) strcat(msg_flags, ",");
strcat(msg_flags, "ERROR");
}
}
VK_LAYER_EXPORT void PrintMessageType(VkFlags vk_flags, char *msg_flags) {
bool separator = false;
msg_flags[0] = 0;
if (vk_flags & VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT) {
strcat(msg_flags, "GEN");
separator = true;
}
if (vk_flags & VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT) {
strcat(msg_flags, "SPEC");
separator = true;
}
if (vk_flags & VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT) {
if (separator) strcat(msg_flags, ",");
strcat(msg_flags, "PERF");
separator = true;
}
}