libremidi update to v5.4.3 and added virtual midi out as default

2026-06-23 00:05:41 +02:00
parent dc0003232a
commit 51cd271b6f
166 changed files with 8135 additions and 2009 deletions
@@ -0,0 +1,178 @@
+#pragma once
+// clang-format off
+#define NOMINMAX 1
+#define WIN32_LEAN_AND_MEAN 1
+
+#include <windows.h>
+#include <mmsystem.h>
+// clang-format on
+
+#include <libremidi/detail/midi_api.hpp>
+
+#include <atomic>
+#include <mutex>
+
+namespace libremidi::kdmapi
+{
+
+using IsKDMAPIAvailable_t = BOOL(WINAPI*)();
+using InitializeKDMAPIStream_t = BOOL(WINAPI*)();
+using TerminateKDMAPIStream_t = BOOL(WINAPI*)();
+using ResetKDMAPIStream_t = VOID(WINAPI*)();
+using SendDirectData_t = VOID(WINAPI*)(DWORD);
+using SendDirectDataNoBuf_t = VOID(WINAPI*)(DWORD);
+using SendDirectLongData_t = UINT(WINAPI*)(MIDIHDR*, UINT);
+using SendDirectLongDataNoBuf_t = UINT(WINAPI*)(LPSTR, DWORD);
+using PrepareLongData_t = UINT(WINAPI*)(MIDIHDR*, UINT);
+using UnprepareLongData_t = UINT(WINAPI*)(MIDIHDR*, UINT);
+using ReturnKDMAPIVer_t = BOOL(WINAPI*)(LPDWORD, LPDWORD, LPDWORD, LPDWORD);
+
+class kdmapi_loader
+{
+public:
+  static kdmapi_loader& instance()
+  {
+    static kdmapi_loader loader;
+    return loader;
+  }
+
+  bool is_available() const noexcept { return m_available; }
+
+  HMODULE handle() const noexcept { return m_handle; }
+
+  // KDMAPI function pointers
+  IsKDMAPIAvailable_t IsKDMAPIAvailable{};
+  InitializeKDMAPIStream_t InitializeKDMAPIStream{};
+  TerminateKDMAPIStream_t TerminateKDMAPIStream{};
+  ResetKDMAPIStream_t ResetKDMAPIStream{};
+  SendDirectData_t SendDirectData{};
+  SendDirectDataNoBuf_t SendDirectDataNoBuf{};
+  SendDirectLongData_t SendDirectLongData{};
+  SendDirectLongDataNoBuf_t SendDirectLongDataNoBuf{};
+  PrepareLongData_t PrepareLongData{};
+  UnprepareLongData_t UnprepareLongData{};
+  ReturnKDMAPIVer_t ReturnKDMAPIVer{};
+
+private:
+  kdmapi_loader()
+  {
+    // Try to get OmniMIDI if it's already loaded
+    m_handle = GetModuleHandleW(L"OmniMIDI");
+    if (!m_handle)
+    {
+      // Try to load it explicitly
+      m_handle = LoadLibraryW(L"OmniMIDI.dll");
+    }
+
+    if (!m_handle)
+    {
+      m_available = false;
+      return;
+    }
+
+#if !defined(_MSC_VER)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-function-type"
+#endif
+
+    // Load all function pointers
+    IsKDMAPIAvailable
+        = reinterpret_cast<IsKDMAPIAvailable_t>(GetProcAddress(m_handle, "IsKDMAPIAvailable"));
+    InitializeKDMAPIStream = reinterpret_cast<InitializeKDMAPIStream_t>(
+        GetProcAddress(m_handle, "InitializeKDMAPIStream"));
+    TerminateKDMAPIStream = reinterpret_cast<TerminateKDMAPIStream_t>(
+        GetProcAddress(m_handle, "TerminateKDMAPIStream"));
+    ResetKDMAPIStream
+        = reinterpret_cast<ResetKDMAPIStream_t>(GetProcAddress(m_handle, "ResetKDMAPIStream"));
+    SendDirectData
+        = reinterpret_cast<SendDirectData_t>(GetProcAddress(m_handle, "SendDirectData"));
+    SendDirectDataNoBuf
+        = reinterpret_cast<SendDirectDataNoBuf_t>(GetProcAddress(m_handle, "SendDirectDataNoBuf"));
+    SendDirectLongData
+        = reinterpret_cast<SendDirectLongData_t>(GetProcAddress(m_handle, "SendDirectLongData"));
+    SendDirectLongDataNoBuf = reinterpret_cast<SendDirectLongDataNoBuf_t>(
+        GetProcAddress(m_handle, "SendDirectLongDataNoBuf"));
+    PrepareLongData
+        = reinterpret_cast<PrepareLongData_t>(GetProcAddress(m_handle, "PrepareLongData"));
+    UnprepareLongData
+        = reinterpret_cast<UnprepareLongData_t>(GetProcAddress(m_handle, "UnprepareLongData"));
+    ReturnKDMAPIVer
+        = reinterpret_cast<ReturnKDMAPIVer_t>(GetProcAddress(m_handle, "ReturnKDMAPIVer"));
+
+#if !defined(_MSC_VER)
+#pragma GCC diagnostic pop
+#endif
+
+    // Check if the minimum required functions are available
+    if (!IsKDMAPIAvailable || !InitializeKDMAPIStream || !TerminateKDMAPIStream || !SendDirectData)
+    {
+      m_available = false;
+      return;
+    }
+
+    // Call IsKDMAPIAvailable to activate KDMAPI mode in OmniMIDI
+    m_available = IsKDMAPIAvailable() != FALSE;
+  }
+
+  ~kdmapi_loader()
+  {
+  }
+
+  kdmapi_loader(const kdmapi_loader&) = delete;
+  kdmapi_loader& operator=(const kdmapi_loader&) = delete;
+
+  HMODULE m_handle{};
+  bool m_available{false};
+};
+
+class kdmapi_stream_manager
+{
+public:
+  static kdmapi_stream_manager& instance()
+  {
+    static kdmapi_stream_manager mgr;
+    return mgr;
+  }
+
+  bool acquire()
+  {
+    std::lock_guard lock{m_mutex};
+    auto& loader = kdmapi_loader::instance();
+    if (!loader.is_available())
+      return false;
+
+    if (m_rc == 0)
+    {
+      if (!loader.InitializeKDMAPIStream())
+        return false;
+    }
+    ++m_rc;
+    return true;
+  }
+
+  void release()
+  {
+    std::lock_guard lock{m_mutex};
+    if (m_rc == 0)
+      return;
+
+    --m_rc;
+    if (m_rc == 0)
+    {
+      auto& loader = kdmapi_loader::instance();
+      if (loader.TerminateKDMAPIStream)
+        loader.TerminateKDMAPIStream();
+    }
+  }
+
+private:
+  kdmapi_stream_manager() = default;
+  ~kdmapi_stream_manager() = default;
+  kdmapi_stream_manager(const kdmapi_stream_manager&) = delete;
+  kdmapi_stream_manager& operator=(const kdmapi_stream_manager&) = delete;
+
+  std::mutex m_mutex;
+  std::size_t m_rc{0};
+};
+
+}