very, very simple WP with midi CC out

2024-10-09 02:01:23 +02:00
commit 3d6fc151f1
126 changed files with 19539 additions and 0 deletions
@@ -0,0 +1,87 @@
+#pragma once
+#include <libremidi/api.hpp>
+#include <libremidi/config.hpp>
+#include <libremidi/error.hpp>
+#include <libremidi/observer_configuration.hpp>
+
+#include <iostream>
+#include <string_view>
+
+namespace libremidi
+{
+struct error_handler
+{
+  //! Error reporting function for libremidi classes. Throws.
+  template <typename Error_T>
+  void error(auto& configuration, std::string_view errorString) const
+  {
+    if (configuration.on_error)
+    {
+      if (first_error)
+        return;
+
+      first_error = true;
+      configuration.on_error(Error_T::code, errorString);
+      first_error = false;
+    }
+    else
+    {
+#if defined(__LIBREMIDI_DEBUG__)
+      std::cerr << '\n' << errorString << "\n\n";
+#endif
+      throw Error_T{errorString.data()};
+    }
+  }
+
+  //! Warning reporting function for libremidi classes.
+  void warning(auto& configuration, std::string_view errorString) const
+  {
+    if (configuration.on_warning)
+    {
+      if (first_warning)
+        return;
+
+      first_warning = true;
+      configuration.on_warning(midi_error::WARNING, errorString);
+      first_warning = false;
+      return;
+    }
+
+#if defined(__LIBREMIDI_DEBUG__)
+    std::cerr << '\n' << errorString << "\n\n";
+#endif
+  }
+
+  // To prevent infinite error loops
+  mutable bool first_error{};
+  mutable bool first_warning{};
+};
+
+class midi_api
+{
+public:
+  midi_api() = default;
+  virtual ~midi_api() = default;
+  midi_api(const midi_api&) = delete;
+  midi_api(midi_api&&) = delete;
+  midi_api& operator=(const midi_api&) = delete;
+  midi_api& operator=(midi_api&&) = delete;
+
+  [[nodiscard]] virtual libremidi::API get_current_api() const noexcept = 0;
+
+  [[nodiscard]] virtual bool open_virtual_port(std::string_view) = 0;
+
+  virtual void close_port() = 0;
+  virtual void set_client_name(std::string_view) = 0;
+  virtual void set_port_name(std::string_view) = 0;
+
+  bool is_port_open() const noexcept { return bool(port_open_); }
+  bool is_port_connected() const noexcept { return bool(connected_); }
+
+protected:
+  friend class midi_in;
+  friend class midi_out;
+  bool port_open_{};
+  bool connected_{};
+};
+}