285 lines
9.4 KiB
C++
285 lines
9.4 KiB
C++
#include "..\Plugin.h"
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#include <windows.h>
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void FixUPXIssue ( BYTE * ProgramLocation );
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CAudioPlugin::CAudioPlugin ( const char * FileName) {
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//Make sure all parts of the class are initialized
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m_Initilized = false;
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m_RomOpen = false;
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hDll = NULL;
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m_hAudioThread = NULL;
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UnloadPlugin();
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//Try to load the DLL library
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UINT LastErrorMode = SetErrorMode( SEM_FAILCRITICALERRORS );
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hDll = LoadLibrary(FileName);
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SetErrorMode(LastErrorMode);
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if (hDll == NULL) {
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UnloadPlugin();
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return;
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}
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FixUPXIssue((BYTE *)hDll);
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//Get DLL information
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void (__cdecl *GetDllInfo) ( PLUGIN_INFO * PluginInfo );
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GetDllInfo = (void (__cdecl *)(PLUGIN_INFO *))GetProcAddress( (HMODULE)hDll, "GetDllInfo" );
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if (GetDllInfo == NULL) { UnloadPlugin(); return; }
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GetDllInfo(&m_PluginInfo);
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if (!ValidPluginVersion(&m_PluginInfo)) { UnloadPlugin(); return; }
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//Find entries for functions in DLL
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void (__cdecl *InitFunc) ( void );
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m_DacrateChanged = (void (__cdecl *)(SystemType)) GetProcAddress( (HMODULE)hDll, "AiDacrateChanged" );
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LenChanged = (void (__cdecl *)(void)) GetProcAddress( (HMODULE)hDll, "AiLenChanged" );
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Config = (void (__cdecl *)(DWORD))GetProcAddress( (HMODULE)hDll, "DllConfig" );
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ReadLength = (DWORD (__cdecl *)(void))GetProcAddress( (HMODULE)hDll, "AiReadLength" );
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InitFunc = (void (__cdecl *)(void)) GetProcAddress( (HMODULE)hDll, "InitiateAudio" );
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RomOpen = (void (__cdecl *)(void)) GetProcAddress( (HMODULE)hDll, "RomOpen" );
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RomClosed = (void (__cdecl *)(void)) GetProcAddress( (HMODULE)hDll, "RomClosed" );
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CloseDLL = (void (__cdecl *)(void)) GetProcAddress( (HMODULE)hDll, "CloseDLL" );
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ProcessAList = (void (__cdecl *)(void)) GetProcAddress( (HMODULE)hDll, "ProcessAList" );
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Update = (void (__cdecl *)(BOOL))GetProcAddress( (HMODULE)hDll, "AiUpdate" );
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//version 102 functions
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PluginOpened = (void (__cdecl *)(void))GetProcAddress( (HMODULE)hDll, "PluginLoaded" );
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//Make sure dll had all needed functions
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if (m_DacrateChanged == NULL) { UnloadPlugin(); return; }
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if (LenChanged == NULL) { UnloadPlugin(); return; }
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if (ReadLength == NULL) { UnloadPlugin(); return; }
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if (InitFunc == NULL) { UnloadPlugin(); return; }
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if (RomClosed == NULL) { UnloadPlugin(); return; }
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if (ProcessAList == NULL) { UnloadPlugin(); return; }
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SetSettingInfo2 = (void (__cdecl *)(PLUGIN_SETTINGS2 *))GetProcAddress( (HMODULE)hDll, "SetSettingInfo2" );
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if (SetSettingInfo2)
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{
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PLUGIN_SETTINGS2 info;
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info.FindSystemSettingId = (unsigned int (*)( void * handle, const char * ))CSettings::FindGameSetting;
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SetSettingInfo2(&info);
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}
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SetSettingInfo = (void (__cdecl *)(PLUGIN_SETTINGS *))GetProcAddress( (HMODULE)hDll, "SetSettingInfo" );
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if (SetSettingInfo)
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{
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PLUGIN_SETTINGS info;
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info.dwSize = sizeof(PLUGIN_SETTINGS);
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info.DefaultStartRange = FirstAudioDefaultSet;
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info.SettingStartRange = FirstAudioSettings;
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info.MaximumSettings = MaxPluginSetting;
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info.NoDefault = Default_None;
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info.DefaultLocation = _Settings->LoadDword(Setting_UseFromRegistry) ? SettingType_Registry : SettingType_CfgFile;
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info.handle = _Settings;
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info.RegisterSetting = (void (*)(void *,int,int,SettingDataType,SettingType,const char *,const char *, DWORD))CSettings::RegisterSetting;
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info.GetSetting = (unsigned int (*)( void * handle, int ID ))CSettings::GetSetting;
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info.GetSettingSz = (const char * (*)( void *, int, char *, int ))CSettings::GetSettingSz;
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info.SetSetting = (void (*)(void *,int,unsigned int))CSettings::SetSetting;
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info.SetSettingSz = (void (*)(void *,int,const char *))CSettings::SetSettingSz;
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info.UseUnregisteredSetting = NULL;
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SetSettingInfo(&info);
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//_Settings->UnknownSetting_AUDIO = info.UseUnregisteredSetting;
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}
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if (m_PluginInfo.Version >= 0x0102)
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{
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if (PluginOpened == NULL) { UnloadPlugin(); return; }
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PluginOpened();
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}
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}
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CAudioPlugin::~CAudioPlugin (void) {
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Close();
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UnloadPlugin();
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}
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bool CAudioPlugin::Initiate ( CN64System * System, CMainGui * RenderWindow ) {
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typedef struct {
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HWND hwnd;
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HINSTANCE hinst;
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BOOL MemoryBswaped; // If this is set to TRUE, then the memory has been pre
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// bswap on a dword (32 bits) boundry
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// eg. the first 8 bytes are stored like this:
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// 4 3 2 1 8 7 6 5
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BYTE * HEADER; // This is the rom header (first 40h bytes of the rom
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// This will be in the same memory format as the rest of the memory.
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BYTE * RDRAM;
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BYTE * DMEM;
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BYTE * IMEM;
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DWORD * MI__INTR_REG;
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DWORD * AI__DRAM_ADDR_REG;
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DWORD * AI__LEN_REG;
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DWORD * AI__CONTROL_REG;
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DWORD * AI__STATUS_REG;
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DWORD * AI__DACRATE_REG;
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DWORD * AI__BITRATE_REG;
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void (__cdecl *CheckInterrupts)( void );
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} AUDIO_INFO;
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//Get Function from DLL
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BOOL (__cdecl *InitiateAudio) ( AUDIO_INFO Audio_Info );
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InitiateAudio = (BOOL (__cdecl *)(AUDIO_INFO))GetProcAddress( (HMODULE)hDll, "InitiateAudio" );
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if (InitiateAudio == NULL) { return false; }
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AUDIO_INFO Info;
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memset(&Info,0,sizeof(Info));
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//We are initilizing the plugin before any rom is loaded so we do not have any correct
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//paramaters here .. just needed to we can config the DLL
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if (System == NULL) {
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BYTE Buffer[100];
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DWORD Value = 0;
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Info.hwnd = (HWND)RenderWindow->m_hMainWindow;;
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Info.hinst = GetModuleHandle(NULL);
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Info.MemoryBswaped = TRUE;
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Info.HEADER = Buffer;
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Info.RDRAM = Buffer;
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Info.DMEM = Buffer;
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Info.IMEM = Buffer;
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Info.MI__INTR_REG = &Value;
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Info.AI__DRAM_ADDR_REG = &Value;
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Info.AI__LEN_REG = &Value;
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Info.AI__CONTROL_REG = &Value;
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Info.AI__STATUS_REG = &Value;
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Info.AI__DACRATE_REG = &Value;
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Info.AI__BITRATE_REG = &Value;
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Info.CheckInterrupts = DummyCheckInterrupts;
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m_Initilized = InitiateAudio(Info) != 0;
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//jabo had a bug so I call CreateThread so his dllmain gets called again
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DWORD ThreadID;
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HANDLE hthread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)DummyFunction,NULL,0, &ThreadID);
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CloseHandle(hthread);
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Sleep(100);
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return m_Initilized;
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}
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_System = System;
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_Reg = System->_MMU->_Reg;
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m_StatusReg = 0;
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//Send Initilization information to the DLL
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Info.hwnd = (HWND)RenderWindow->m_hMainWindow;
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Info.hinst = GetModuleHandle(NULL);
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Info.MemoryBswaped = TRUE;
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Info.HEADER = System->_MMU->ROM;
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Info.RDRAM = System->_MMU->RDRAM;
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Info.DMEM = System->_MMU->DMEM;
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Info.IMEM = System->_MMU->IMEM;
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Info.MI__INTR_REG = &_Reg->AudioIntrReg;
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Info.AI__DRAM_ADDR_REG = &_Reg->AI_DRAM_ADDR_REG;
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Info.AI__LEN_REG = &_Reg->AI_LEN_REG;
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Info.AI__CONTROL_REG = &_Reg->AI_CONTROL_REG;
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Info.AI__STATUS_REG = &m_StatusReg;
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Info.AI__DACRATE_REG = &_Reg->AI_DACRATE_REG;
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Info.AI__BITRATE_REG = &_Reg->AI_BITRATE_REG;
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Info.CheckInterrupts = DummyCheckInterrupts;
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m_Initilized = InitiateAudio(Info) != 0;
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//jabo had a bug so I call CreateThread so his dllmain gets called again
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DWORD ThreadID;
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HANDLE hthread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)DummyFunction,NULL,0, &ThreadID);
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CloseHandle(hthread);
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if (Update) {
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m_hAudioThread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)AudioThread, (LPVOID)this,0, &ThreadID);
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}
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if (_Reg->AI_DACRATE_REG != 0) {
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DacrateChanged(SYSTEM_NTSC);
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}
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return m_Initilized;
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}
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void CAudioPlugin::RomOpened ( void )
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{
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//Real system ... then make the file as open
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if (!m_RomOpen && RomOpen)
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{
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RomOpen();
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m_RomOpen = true;
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}
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}
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void CAudioPlugin::Close(void) {
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if (m_RomOpen) {
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RomClosed();
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m_RomOpen = false;
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}
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if (m_Initilized) {
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CloseDLL();
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m_Initilized = false;
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}
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}
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void CAudioPlugin::GameReset(void)
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{
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if (m_RomOpen)
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{
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RomClosed();
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if (RomOpen)
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{
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RomOpen();
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}
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}
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}
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bool CAudioPlugin::ValidPluginVersion(PLUGIN_INFO * PluginInfo) {
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switch (PluginInfo->Type) {
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case PLUGIN_TYPE_AUDIO:
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if (PluginInfo->MemoryBswaped == FALSE) { return FALSE; }
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if (PluginInfo->Version == 0x0101) { return TRUE; }
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if (PluginInfo->Version == 0x0102) { return TRUE; }
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break;
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}
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return FALSE;
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}
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void CAudioPlugin::UnloadPlugin(void) {
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if (m_hAudioThread) {
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TerminateThread(m_hAudioThread,0);
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m_hAudioThread = NULL;
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}
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memset(&m_PluginInfo,0,sizeof(m_PluginInfo));
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if (hDll != NULL ) {
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FreeLibrary((HMODULE)hDll);
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hDll = NULL;
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}
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m_DacrateChanged = NULL;
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LenChanged = NULL;
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Config = NULL;
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ReadLength = NULL;
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Update = NULL;
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ProcessAList = NULL;
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RomClosed = NULL;
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CloseDLL = NULL;
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m_CountsPerByte = 100;
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_System = NULL;
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_Reg = NULL;
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}
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void CAudioPlugin::DacrateChanged (SystemType Type) {
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if (!Initilized()) { return; }
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DWORD Frequency = _Reg->AI_DACRATE_REG * 66;
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DWORD CountsPerSecond = (_Reg->VI_V_SYNC_REG != 0 ? (_Reg->VI_V_SYNC_REG + 1) * _Settings->LoadDword(Game_ViRefreshRate) : 500000) * 60;
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m_CountsPerByte = (double)CountsPerSecond / (double)Frequency;
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m_DacrateChanged(Type);
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}
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void CAudioPlugin::AudioThread (CAudioPlugin * _this) {
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SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL );
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for (;;) {
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_this->Update(true);
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}
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}
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