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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
// http://developer.nvidia.com/object/General_FAQ.html#t6 !!!!!
#include "Common.h"
#include "ChunkFile.h"
#include "CoreTiming.h"
#include "ConfigManager.h"
#include "HW/ProcessorInterface.h"
#include "SWPixelEngine.h"
#include "SWCommandProcessor.h"
namespace SWPixelEngine
{
enum
{
INT_CAUSE_PE_TOKEN = 0x200, // GP Token
INT_CAUSE_PE_FINISH = 0x400, // GP Finished
};
// STATE_TO_SAVE
PEReg pereg;
static bool g_bSignalTokenInterrupt;
static bool g_bSignalFinishInterrupt;
static int et_SetTokenOnMainThread;
static int et_SetFinishOnMainThread;
void DoState(PointerWrap &p)
{
p.DoPOD(pereg);
p.Do(g_bSignalTokenInterrupt);
p.Do(g_bSignalFinishInterrupt);
p.Do(et_SetTokenOnMainThread);
p.Do(et_SetFinishOnMainThread);
}
void UpdateInterrupts();
void SetToken_OnMainThread(u64 userdata, int cyclesLate);
void SetFinish_OnMainThread(u64 userdata, int cyclesLate);
void Init()
{
memset(&pereg, 0, sizeof(pereg));
et_SetTokenOnMainThread = false;
g_bSignalFinishInterrupt = false;
et_SetTokenOnMainThread = CoreTiming::RegisterEvent("SetToken", SetToken_OnMainThread);
et_SetFinishOnMainThread = CoreTiming::RegisterEvent("SetFinish", SetFinish_OnMainThread);
}
void Read16(u16& _uReturnValue, const u32 _iAddress)
{
DEBUG_LOG(PIXELENGINE, "(r16): 0x%08x", _iAddress);
u16 address = _iAddress & 0xFFF;
if (address <= 0x2e)
_uReturnValue = ((u16*)&pereg)[address >> 1];
}
void Write32(const u32 _iValue, const u32 _iAddress)
{
WARN_LOG(PIXELENGINE, "(w32): 0x%08x @ 0x%08x",_iValue,_iAddress);
}
void Write16(const u16 _iValue, const u32 _iAddress)
{
u16 address = _iAddress & 0xFFF;
switch (address)
{
case PE_CTRL_REGISTER:
{
UPECtrlReg tmpCtrl(_iValue);
if (tmpCtrl.PEToken) g_bSignalTokenInterrupt = false;
if (tmpCtrl.PEFinish) g_bSignalFinishInterrupt = false;
pereg.ctrl.PETokenEnable = tmpCtrl.PETokenEnable;
pereg.ctrl.PEFinishEnable = tmpCtrl.PEFinishEnable;
pereg.ctrl.PEToken = 0; // this flag is write only
pereg.ctrl.PEFinish = 0; // this flag is write only
DEBUG_LOG(PIXELENGINE, "(w16): PE_CTRL_REGISTER: 0x%04x", _iValue);
UpdateInterrupts();
}
break;
default:
if (address <= 0x2e)
((u16*)&pereg)[address >> 1] = _iValue;
break;
}
}
bool AllowIdleSkipping()
{
return !SConfig::GetInstance().m_LocalCoreStartupParameter.bCPUThread || (!pereg.ctrl.PETokenEnable && !pereg.ctrl.PEFinishEnable);
}
void UpdateInterrupts()
{
// check if there is a token-interrupt
if (g_bSignalTokenInterrupt & pereg.ctrl.PETokenEnable)
ProcessorInterface::SetInterrupt(INT_CAUSE_PE_TOKEN, true);
else
ProcessorInterface::SetInterrupt(INT_CAUSE_PE_TOKEN, false);
// check if there is a finish-interrupt
if (g_bSignalFinishInterrupt & pereg.ctrl.PEFinishEnable)
ProcessorInterface::SetInterrupt(INT_CAUSE_PE_FINISH, true);
else
ProcessorInterface::SetInterrupt(INT_CAUSE_PE_FINISH, false);
}
// Called only if BPMEM_PE_TOKEN_INT_ID is ack by GP
void SetToken_OnMainThread(u64 userdata, int cyclesLate)
{
g_bSignalTokenInterrupt = true;
INFO_LOG(PIXELENGINE, "VIDEO Backend raises INT_CAUSE_PE_TOKEN (btw, token: %04x)", pereg.token);
UpdateInterrupts();
}
void SetFinish_OnMainThread(u64 userdata, int cyclesLate)
{
g_bSignalFinishInterrupt = true;
UpdateInterrupts();
}
// SetToken
// THIS IS EXECUTED FROM VIDEO THREAD
void SetToken(const u16 _token, const int _bSetTokenAcknowledge)
{
pereg.token = _token;
if (_bSetTokenAcknowledge) // set token INT
{
CoreTiming::ScheduleEvent_Threadsafe(0, et_SetTokenOnMainThread,
_token | (_bSetTokenAcknowledge << 16));
}
}
// SetFinish
// THIS IS EXECUTED FROM VIDEO THREAD
void SetFinish()
{
CoreTiming::ScheduleEvent_Threadsafe(0, et_SetFinishOnMainThread, 0);
INFO_LOG(PIXELENGINE, "VIDEO Set Finish");
}
} // end of namespace SWPixelEngine
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