project64/Source/Project64/Plugins/RSP Plugin.cpp

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2012-12-19 09:30:18 +00:00
/****************************************************************************
* *
* Project 64 - A Nintendo 64 emulator. *
* http://www.pj64-emu.com/ *
* Copyright (C) 2012 Project64. All rights reserved. *
* *
* License: *
* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
* *
****************************************************************************/
#include "stdafx.h"
void DummyFunc1(BOOL /*a*/) {}
CRSP_Plugin::CRSP_Plugin(void) :
DoRspCycles(NULL),
EnableDebugging(NULL),
GetDebugInfo(NULL),
InitiateDebugger(NULL),
m_CycleCount(0)
{
memset(&m_RSPDebug, 0, sizeof(m_RSPDebug));
}
CRSP_Plugin::~CRSP_Plugin()
{
Close();
UnloadPlugin();
}
bool CRSP_Plugin::LoadFunctions ( void )
{
// Find entries for functions in DLL
void (__cdecl *InitiateRSP)( void );
LoadFunction(InitiateRSP);
LoadFunction(DoRspCycles);
_LoadFunction("GetRspDebugInfo", GetDebugInfo);
_LoadFunction("InitiateRSPDebugger", InitiateDebugger);
LoadFunction(EnableDebugging);
if (EnableDebugging == NULL) { EnableDebugging = DummyFunc1; }
//Make sure dll had all needed functions
if (DoRspCycles == NULL) { UnloadPlugin(); return false; }
if (InitiateRSP == NULL) { UnloadPlugin(); return false; }
if (RomClosed == NULL) { UnloadPlugin(); return false; }
if (CloseDLL == NULL) { UnloadPlugin(); return false; }
if (m_PluginInfo.Version >= 0x0102)
{
if (PluginOpened == NULL) { UnloadPlugin(); return false; }
}
// Get debug info if able
if (GetDebugInfo != NULL)
GetDebugInfo(&m_RSPDebug);
return true;
}
bool CRSP_Plugin::Initiate(CPlugins * Plugins, CN64System * System)
{
if (m_PluginInfo.Version == 1 || m_PluginInfo.Version == 0x100)
{
return false;
}
typedef struct
{
HINSTANCE hInst;
BOOL MemoryBswaped; /* If this is set to TRUE, then the memory has been pre
bswap on a dword (32 bits) boundry */
BYTE * RDRAM;
BYTE * DMEM;
BYTE * IMEM;
DWORD * MI__INTR_REG;
DWORD * SP__MEM_ADDR_REG;
DWORD * SP__DRAM_ADDR_REG;
DWORD * SP__RD_LEN_REG;
DWORD * SP__WR_LEN_REG;
DWORD * SP__STATUS_REG;
DWORD * SP__DMA_FULL_REG;
DWORD * SP__DMA_BUSY_REG;
DWORD * SP__PC_REG;
DWORD * SP__SEMAPHORE_REG;
DWORD * DPC__START_REG;
DWORD * DPC__END_REG;
DWORD * DPC__CURRENT_REG;
DWORD * DPC__STATUS_REG;
DWORD * DPC__CLOCK_REG;
DWORD * DPC__BUFBUSY_REG;
DWORD * DPC__PIPEBUSY_REG;
DWORD * DPC__TMEM_REG;
void ( __cdecl *CheckInterrupts)( void );
void (__cdecl *ProcessDlist)( void );
void (__cdecl *ProcessAlist)( void );
void (__cdecl *ProcessRdpList)( void );
void (__cdecl *ShowCFB)( void );
} RSP_INFO_1_1;
RSP_INFO_1_1 Info = { 0 };
Info.hInst = GetModuleHandle(NULL);
Info.CheckInterrupts = DummyCheckInterrupts;
Info.MemoryBswaped = (System == NULL); // only true when the system's not yet loaded
//Get Function from DLL
void (__cdecl *InitiateRSP) ( RSP_INFO_1_1 Audio_Info,DWORD * Cycles );
LoadFunction(InitiateRSP);
if (InitiateRSP == NULL) { return false; }
// We are initializing the plugin before any rom is loaded so we do not have any correct
// parameters here.. just needed to we can config the DLL.
if (System == NULL)
{
BYTE Buffer[100];
DWORD Value = 0;
Info.ProcessDlist = DummyCheckInterrupts;
Info.ProcessRdpList = DummyCheckInterrupts;
Info.ShowCFB = DummyCheckInterrupts;
Info.ProcessAlist = DummyCheckInterrupts;
Info.RDRAM = Buffer;
Info.DMEM = Buffer;
Info.IMEM = Buffer;
Info.MI__INTR_REG = &Value;
Info.SP__MEM_ADDR_REG = &Value;
Info.SP__DRAM_ADDR_REG = &Value;
Info.SP__RD_LEN_REG = &Value;
Info.SP__WR_LEN_REG = &Value;
Info.SP__STATUS_REG = &Value;
Info.SP__DMA_FULL_REG = &Value;
Info.SP__DMA_BUSY_REG = &Value;
Info.SP__PC_REG = &Value;
Info.SP__SEMAPHORE_REG = &Value;
Info.DPC__START_REG = &Value;
Info.DPC__END_REG = &Value;
Info.DPC__CURRENT_REG = &Value;
Info.DPC__STATUS_REG = &Value;
Info.DPC__CLOCK_REG = &Value;
Info.DPC__BUFBUSY_REG = &Value;
Info.DPC__PIPEBUSY_REG = &Value;
Info.DPC__TMEM_REG = &Value;
}
// Send initialization information to the DLL
else
{
Info.ProcessDlist = Plugins->Gfx()->ProcessDList;
Info.ProcessRdpList = Plugins->Gfx()->ProcessRDPList;
Info.ShowCFB = Plugins->Gfx()->ShowCFB;
Info.ProcessAlist = Plugins->Audio()->ProcessAList;
Info.RDRAM = g_MMU->Rdram();
Info.DMEM = g_MMU->Dmem();
Info.IMEM = g_MMU->Imem();
Info.MI__INTR_REG = &g_Reg->m_RspIntrReg;
Info.SP__MEM_ADDR_REG = &g_Reg->SP_MEM_ADDR_REG;
Info.SP__DRAM_ADDR_REG = &g_Reg->SP_DRAM_ADDR_REG;
Info.SP__RD_LEN_REG = &g_Reg->SP_RD_LEN_REG;
Info.SP__WR_LEN_REG = &g_Reg->SP_WR_LEN_REG;
Info.SP__STATUS_REG = &g_Reg->SP_STATUS_REG;
Info.SP__DMA_FULL_REG = &g_Reg->SP_DMA_FULL_REG;
Info.SP__DMA_BUSY_REG = &g_Reg->SP_DMA_BUSY_REG;
Info.SP__PC_REG = &g_Reg->SP_PC_REG;
Info.SP__SEMAPHORE_REG = &g_Reg->SP_SEMAPHORE_REG;
Info.DPC__START_REG = &g_Reg->DPC_START_REG;
Info.DPC__END_REG = &g_Reg->DPC_END_REG;
Info.DPC__CURRENT_REG = &g_Reg->DPC_CURRENT_REG;
Info.DPC__STATUS_REG = &g_Reg->DPC_STATUS_REG;
Info.DPC__CLOCK_REG = &g_Reg->DPC_CLOCK_REG;
Info.DPC__BUFBUSY_REG = &g_Reg->DPC_BUFBUSY_REG;
Info.DPC__PIPEBUSY_REG = &g_Reg->DPC_PIPEBUSY_REG;
Info.DPC__TMEM_REG = &g_Reg->DPC_TMEM_REG;
}
InitiateRSP(Info, &m_CycleCount);
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m_Initialized = true;
//jabo had a bug so I call CreateThread so his dllmain gets called again
DWORD ThreadID;
HANDLE hthread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)DummyFunction, NULL, 0, &ThreadID);
CloseHandle(hthread);
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return m_Initialized;
}
void CRSP_Plugin::UnloadPluginDetails(void)
{
memset(&m_RSPDebug, 0, sizeof(m_RSPDebug));
DoRspCycles = NULL;
EnableDebugging = NULL;
GetDebugInfo = NULL;
InitiateDebugger = NULL;
}
void CRSP_Plugin::ProcessMenuItem(int id)
{
if (m_RSPDebug.ProcessMenuItem)
{
m_RSPDebug.ProcessMenuItem(id);
}
}