[util] Log level can now be controlled manually

src/util/log/log.cpp

@@ -1,39 +1,73 @@
 #include "log.h"
 
-#include "../../dxvk/dxvk_main.h"
+#include "../util_env.h"
 
 namespace dxvk {
   
   Logger::Logger(const std::string& file_name)
-  : m_fileStream(file_name) { }
+  : m_minLevel(getMinLogLevel()),
+    m_fileStream(file_name) { }
+  
+  
   Logger::~Logger() { }
   
   
   void Logger::trace(const std::string& message) {
-    s_instance.log(std::string("trace:  ") + message);
+    s_instance.log(LogLevel::Trace, message);
+  }
+  
+  
+  void Logger::debug(const std::string& message) {
+    s_instance.log(LogLevel::Debug, message);
   }
   
   
   void Logger::info(const std::string& message) {
-    s_instance.log(std::string("info:   ") + message);
+    s_instance.log(LogLevel::Info, message);
   }
   
   
   void Logger::warn(const std::string& message) {
-    s_instance.log(std::string("warn:   ") + message);
+    s_instance.log(LogLevel::Warn, message);
   }
   
   
   void Logger::err(const std::string& message) {
-    s_instance.log(std::string("err:    ") + message);
+    s_instance.log(LogLevel::Error, message);
   }
   
   
-  void Logger::log(const std::string& message) {
+  void Logger::log(LogLevel level, const std::string& message) {
+    if (level >= m_minLevel) {
       std::lock_guard<std::mutex> lock(m_mutex);
-    std::cerr << message << std::endl;
+      
+      static std::array<const char*, 5> s_prefixes
+        = {{ "trace: ", "debug: ", "info:  ", "warn:  ", "err:   " }};
+      
+      std::cerr << s_prefixes.at(static_cast<uint32_t>(level)) << message << std::endl;
       m_fileStream << message << std::endl;
       m_fileStream.flush();
     }
+  }
+  
+  
+  LogLevel Logger::getMinLogLevel() {
+    const std::array<std::pair<const char*, LogLevel>, 5> logLevels = {{
+      { "trace", LogLevel::Trace },
+      { "debug", LogLevel::Debug },
+      { "info",  LogLevel::Info  },
+      { "warn",  LogLevel::Warn  },
+      { "error", LogLevel::Error },
+    }};
+    
+    const std::string logLevelStr = env::getEnvVar(L"DXVK_LOG_LEVEL");
+    
+    for (const auto& pair : logLevels) {
+      if (logLevelStr == pair.first)
+        return pair.second;
+    }
+    
+    return LogLevel::Info;
+  }
   
 }

src/util/log/log.h

@@ -5,10 +5,16 @@
 #include <mutex>
 #include <string>
 
-#include "../rc/util_rc.h"
-
 namespace dxvk {
   
+  enum class LogLevel : uint32_t {
+    Trace = 0,
+    Debug = 1,
+    Info  = 2,
+    Warn  = 3,
+    Error = 4,
+  };
+  
   /**
    * \brief Logger
    * 
@@ -23,6 +29,7 @@ namespace dxvk {
     ~Logger();
     
     static void trace(const std::string& message);
+    static void debug(const std::string& message);
     static void info (const std::string& message);
     static void warn (const std::string& message);
     static void err  (const std::string& message);
@@ -31,10 +38,14 @@ namespace dxvk {
     
     static Logger s_instance;
     
+    const LogLevel m_minLevel;
+    
     std::mutex    m_mutex;
     std::ofstream m_fileStream;
     
-    void log(const std::string& message);
+    void log(LogLevel level, const std::string& message);
+    
+    static LogLevel getMinLogLevel();
 
   };