105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
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/*
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* Bridge.h
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* --------
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* Purpose: VST plugin bridge (plugin side)
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* Notes : (currently none)
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#pragma once
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#include "openmpt/all/BuildSettings.hpp"
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#include <atomic>
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#include "BridgeCommon.h"
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OPENMPT_NAMESPACE_BEGIN
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class PluginBridge : private BridgeCommon
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{
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public:
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static bool m_fullMemDump;
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protected:
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enum TimerID : UINT
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{
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TIMER_IDLE = 1,
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};
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static PluginBridge *m_latestInstance;
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static ATOM m_editorClassAtom;
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// Plugin
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Vst::AEffect *m_nativeEffect = nullptr;
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HMODULE m_library = nullptr;
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HWND m_window = nullptr;
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int m_windowWidth = 0, m_windowHeight = 0;
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std::atomic<bool> m_isProcessing = false;
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// Static memory for host-to-plugin pointers
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union
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{
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Vst::VstSpeakerArrangement speakerArrangement;
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char name[256];
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} m_host2PlugMem;
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std::vector<char> m_eventCache; // Cached VST (MIDI) events
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std::vector<char> m_fileSelectCache; // Cached VstFileSelect data
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// Pointers to sample data
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std::vector<void *> m_sampleBuffers;
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uint32 m_mixBufSize = 0;
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HANDLE m_audioThread = nullptr;
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Event m_sigThreadExit; // Signal to kill audio thread
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bool m_needIdle = false; // Plugin needs idle time
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public:
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PluginBridge(const wchar_t *memName, HANDLE otherProcess);
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~PluginBridge();
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PluginBridge(const PluginBridge&) = delete;
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PluginBridge &operator=(const PluginBridge&) = delete;
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static void MainLoop(TCHAR *argv[]);
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protected:
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void RequestDelete();
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bool SendToHost(BridgeMessage &sendMsg);
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void UpdateEffectStruct();
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void CreateProcessingFile(std::vector<char> &dispatchData);
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void ParseNextMessage(int msgID);
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void NewInstance(NewInstanceMsg &msg);
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void InitBridge(InitMsg &msg);
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void DispatchToPlugin(DispatchMsg &msg);
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void SetParameter(ParameterMsg &msg);
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void GetParameter(ParameterMsg &msg);
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void AutomateParameters();
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void Process();
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void ProcessReplacing();
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void ProcessDoubleReplacing();
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intptr_t DispatchToHost(Vst::VstOpcodeToHost opcode, int32 index, intptr_t value, void *ptr, float opt);
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void SendErrorMessage(const wchar_t *str);
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intptr_t Dispatch(Vst::VstOpcodeToPlugin opcode, int32 index, intptr_t value, void *ptr, float opt);
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template<typename buf_t>
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int32 BuildProcessPointers(buf_t **(&inPointers), buf_t **(&outPointers));
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static DWORD WINAPI AudioThread(LPVOID param);
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void AudioThread();
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static LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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static void CALLBACK IdleTimerProc(HWND hwnd, UINT message, UINT_PTR idTimer, DWORD dwTime);
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static intptr_t VSTCALLBACK MasterCallback(Vst::AEffect *effect, Vst::VstOpcodeToHost, int32 index, intptr_t value, void *ptr, float opt);
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};
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OPENMPT_NAMESPACE_END
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