1 files changed, 152 insertions, 0 deletions
diff --git a/src/libs/dxvk-native-1.9.2a/src/util/config/config.h b/src/libs/dxvk-native-1.9.2a/src/util/config/config.h
new file mode 100644
index 00000000..5951a27c
--- /dev/null
+++ b/src/libs/dxvk-native-1.9.2a/src/util/config/config.h
@@ -0,0 +1,152 @@
+#pragma once
+
+#include <string>
+#include <unordered_map>
+
+namespace dxvk {
+
+  /**
+   * \brief Tri-state
+   * 
+   * Used to conditionally override
+   * booleans if desired.
+   */
+  enum class Tristate : int32_t {
+    Auto  = -1,
+    False =  0,
+    True  =  1,
+  };
+
+  /**
+   * \brief Config option set
+   * 
+   * Stores configuration options
+   * as a set of key-value pairs.
+   */
+  class Config {
+    using OptionMap = std::unordered_map<std::string, std::string>;
+  public:
+
+    Config();
+    Config(OptionMap&& options);
+    ~Config();
+
+    /**
+     * \brief Merges two configuration sets
+     * 
+     * Options specified in this config object will
+     * not be overridden if they are specified in
+     * the second config object.
+     * \param [in] other Config set to merge.
+     */
+    void merge(const Config& other);
+
+    /**
+     * \brief Sets an option
+     * 
+     * \param [in] key Option name
+     * \param [in] value Option value
+     */
+    void setOption(
+      const std::string& key,
+      const std::string& value);
+
+    /**
+     * \brief Parses an option value
+     *
+     * Retrieves the option value as a string, and then
+     * tries to convert that string to the given type.
+     * If parsing the string fails because it is either
+     * invalid or if the option is not defined, this
+     * method will return a fallback value.
+     * 
+     * Currently, this supports the types \c bool,
+     * \c int32_t, and \c std::string.
+     * \tparam T Return value type
+     * \param [in] option Option name
+     * \param [in] fallback Fallback value
+     * \returns Parsed option value
+     * \returns The parsed option value
+     */
+    template<typename T>
+    T getOption(const char* option, T fallback = T()) const {
+      const std::string& value = getOptionValue(option);
+
+      T result = fallback;
+      parseOptionValue(value, result);
+      return result;
+    }
+
+    /**
+     * \brief Logs option values
+     * 
+     * Prints the effective configuration
+     * to the log for debugging purposes. 
+     */
+    void logOptions() const;
+
+    /**
+     * \brief Retrieves default options for an app
+     * 
+     * \param [in] appName Name of the application
+     * \returns Default options for the application
+     */
+    static Config getAppConfig(const std::string& appName);
+
+    /**
+     * \brief Retrieves user configuration
+     * 
+     * Reads options from the configuration file,
+     * if it can be found, or an empty option set.
+     * \returns User-defined configuration options
+     */
+    static Config getUserConfig();
+
+  private:
+
+    OptionMap m_options;
+
+    std::string getOptionValue(
+      const char*         option) const;
+
+    static bool parseOptionValue(
+      const std::string&  value,
+            std::string&  result);
+
+    static bool parseOptionValue(
+      const std::string&  value,
+            bool&         result);
+
+    static bool parseOptionValue(
+      const std::string&  value,
+            int32_t&      result);
+    
+    static bool parseOptionValue(
+      const std::string&  value,
+            Tristate&     result);
+
+    template<typename I, typename V>
+    static bool parseStringOption(
+            std::string   str,
+            I             begin,
+            I             end,
+            V&            value);
+
+  };
+
+
+  /**
+   * \brief Applies tristate option
+   * 
+   * Overrides the given value if \c state is
+   * \c True or \c False, and leaves it intact
+   * otherwise.
+   * \param [out] option The value to override
+   * \param [in] state Tristate to apply
+   */
+  inline void applyTristate(bool& option, Tristate state) {
+    option &= state != Tristate::False;
+    option |= state == Tristate::True;
+  }
+
+}
+\ No newline at end of file