mirror of https://github.com/PCSX2/pcsx2.git
105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
|
|
* Copyright (C) 2002-2010 PCSX2 Dev Team
|
|
*
|
|
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU Lesser General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
|
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with PCSX2.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
#include "System/SysThreads.h"
|
|
#include "Vif.h"
|
|
#include "Vif_Dma.h"
|
|
#include "VUmicro.h"
|
|
|
|
#define MTVU_LOG(...) do{} while(0)
|
|
//#define MTVU_LOG DevCon.WriteLn
|
|
|
|
// Notes:
|
|
// - This class should only be accessed from the EE thread...
|
|
// - buffer_size must be power of 2
|
|
// - ring-buffer has no complete pending packets when read_pos==write_pos
|
|
class VU_Thread : public pxThread {
|
|
static const u32 buffer_size = (_1mb * 16) / sizeof(u32);
|
|
static const u32 buffer_mask = buffer_size - 1;
|
|
__aligned(4) u32 buffer[buffer_size];
|
|
__aligned(4) volatile s32 read_pos; // Only modified by VU thread
|
|
__aligned(4) volatile bool isBusy; // Is thread processing data?
|
|
__aligned(4) s32 write_pos; // Only modified by EE thread
|
|
__aligned(4) s32 write_offset; // Only modified by EE thread
|
|
__aligned(4) Mutex mtxBusy;
|
|
__aligned(4) Semaphore semaEvent;
|
|
__aligned(4) BaseVUmicroCPU*& vuCPU;
|
|
__aligned(4) VURegs& vuRegs;
|
|
|
|
public:
|
|
__aligned16 vifStruct vif;
|
|
__aligned16 VIFregisters vifRegs;
|
|
__aligned(4) Semaphore semaXGkick;
|
|
__aligned(4) u32 vuCycles[4]; // Used for VU cycle stealing hack
|
|
__aligned(4) u32 vuCycleIdx; // Used for VU cycle stealing hack
|
|
|
|
VU_Thread(BaseVUmicroCPU*& _vuCPU, VURegs& _vuRegs);
|
|
virtual ~VU_Thread() throw();
|
|
|
|
void Reset();
|
|
|
|
// Get MTVU to start processing its packets if it isn't already
|
|
void KickStart(bool forceKick = false);
|
|
|
|
// Used for assertions...
|
|
bool IsDone();
|
|
|
|
// Waits till MTVU is done processing
|
|
void WaitVU();
|
|
|
|
void ExecuteVU(u32 vu_addr, u32 vif_top, u32 vif_itop);
|
|
|
|
void VifUnpack(vifStruct& _vif, VIFregisters& _vifRegs, u8* data, u32 size);
|
|
|
|
// Writes to VU's Micro Memory (size in bytes)
|
|
void WriteMicroMem(u32 vu_micro_addr, void* data, u32 size);
|
|
|
|
// Writes to VU's Data Memory (size in bytes)
|
|
void WriteDataMem(u32 vu_data_addr, void* data, u32 size);
|
|
|
|
void WriteCol(vifStruct& _vif);
|
|
|
|
void WriteRow(vifStruct& _vif);
|
|
|
|
protected:
|
|
void ExecuteTaskInThread();
|
|
|
|
private:
|
|
void ExecuteRingBuffer();
|
|
|
|
void WaitOnSize(s32 size);
|
|
void ReserveSpace(s32 size);
|
|
|
|
volatile s32 GetReadPos();
|
|
volatile s32 GetWritePos();
|
|
u32* GetWritePtr();
|
|
|
|
void incReadPos(s32 offset);
|
|
void incWritePos();
|
|
|
|
u32 Read();
|
|
void Read(void* dest, u32 size);
|
|
void ReadRegs(VIFregisters* dest);
|
|
|
|
void Write(u32 val);
|
|
void Write(void* src, u32 size);
|
|
void WriteRegs(VIFregisters* src);
|
|
|
|
u32 Get_vuCycles();
|
|
};
|
|
|
|
extern __aligned16 VU_Thread vu1Thread;
|