mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2025-07-29 17:19:44 -06:00
Move some code out of the plugins into VideoCommon. No functional change.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@255 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard
167
Source/Core/VideoCommon/Src/Fifo.cpp
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167
Source/Core/VideoCommon/Src/Fifo.cpp
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@ -0,0 +1,167 @@
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// Copyright (C) 2003-2008 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include <string.h>
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#include "MemoryUtil.h"
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#include "Thread.h"
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#include "OpcodeDecoding.h"
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#include "pluginspecs_video.h"
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#include "Fifo.h"
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#define FIFO_SIZE (1024*1024)
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FifoReader fifo;
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static u8 *videoBuffer;
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static int size = 0;
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static int readptr = 0;
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void Fifo_Init()
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{
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videoBuffer = (u8*)AllocateMemoryPages(FIFO_SIZE);
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fifo.Init(videoBuffer, videoBuffer); //zero length. there is no data yet.
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}
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void Fifo_Shutdown()
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{
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FreeMemoryPages(videoBuffer, FIFO_SIZE);
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}
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int FAKE_GetFifoSize()
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{
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if (size < readptr)
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{
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PanicAlert("GFX Fifo underrun encountered (size = %i, readptr = %i)", size, readptr);
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}
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return (size - readptr);
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}
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u8 FAKE_PeekFifo8(u32 _uOffset)
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{
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return videoBuffer[readptr + _uOffset];
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}
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u16 FAKE_PeekFifo16(u32 _uOffset)
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{
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return Common::swap16(*(u16*)&videoBuffer[readptr + _uOffset]);
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}
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u32 FAKE_PeekFifo32(u32 _uOffset)
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{
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return Common::swap32(*(u32*)&videoBuffer[readptr + _uOffset]);
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}
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u8 FAKE_ReadFifo8()
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{
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return videoBuffer[readptr++];
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}
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u16 FAKE_ReadFifo16()
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{
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u16 val = Common::swap16(*(u16*)(videoBuffer+readptr));
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readptr += 2;
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return val;
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}
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u32 FAKE_ReadFifo32()
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{
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u32 val = Common::swap32(*(u32*)(videoBuffer+readptr));
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readptr += 4;
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return val;
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}
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void FAKE_SkipFifo(u32 skip)
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{
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readptr += skip;
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}
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void Video_SendFifoData(BYTE *_uData)
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{
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memcpy(videoBuffer + size, _uData, 32);
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size += 32;
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if (size + 32 >= FIFO_SIZE)
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{
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if (FAKE_GetFifoSize() > readptr)
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{
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PanicAlert("FIFO out of bounds (sz = %i, at %08x)", FAKE_GetFifoSize(), readptr);
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}
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// DebugLog("FAKE BUFFER LOOPS");
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memmove(&videoBuffer[0], &videoBuffer[readptr], FAKE_GetFifoSize());
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// memset(&videoBuffer[FAKE_GetFifoSize()], 0, FIFO_SIZE - FAKE_GetFifoSize());
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size = FAKE_GetFifoSize();
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readptr = 0;
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}
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OpcodeDecoder_Run();
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}
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//TODO - turn inside out, have the "reader" ask for bytes instead
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// See Core.cpp for threading idea
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void Fifo_EnterLoop(const SVideoInitialize &video_initialize)
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{
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SCPFifoStruct &fifo = *video_initialize.pCPFifo;
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// TODO(ector): Don't peek so often!
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while (video_initialize.pPeekMessages())
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{
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if (fifo.CPReadWriteDistance < 1) //fifo.CPLoWatermark)
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Common::SleepCurrentThread(1);
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//etc...
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// check if we are able to run this buffer
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if ((fifo.bFF_GPReadEnable) && !(fifo.bFF_BPEnable && fifo.bFF_Breakpoint))
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{
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int count = 200;
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while(fifo.CPReadWriteDistance > 0 && count)
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{
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// check if we are on a breakpoint
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if (fifo.bFF_BPEnable)
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{
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if (fifo.CPReadPointer == fifo.CPBreakpoint)
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{
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fifo.bFF_Breakpoint = 1;
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video_initialize.pUpdateInterrupts();
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break;
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}
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}
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// read the data and send it to the VideoPlugin
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u8 *uData = video_initialize.pGetMemoryPointer(fifo.CPReadPointer);
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#ifdef _WIN32
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EnterCriticalSection(&fifo.sync);
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#endif
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fifo.CPReadPointer += 32;
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Video_SendFifoData(uData);
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#ifdef _WIN32
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InterlockedExchangeAdd((LONG*)&fifo.CPReadWriteDistance, -32);
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LeaveCriticalSection(&fifo.sync);
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#endif
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// increase the ReadPtr
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if (fifo.CPReadPointer >= fifo.CPEnd)
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{
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fifo.CPReadPointer = fifo.CPBase;
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//LOG(COMMANDPROCESSOR, "BUFFER LOOP");
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}
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count--;
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}
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}
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}
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}
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58
Source/Core/VideoCommon/Src/Fifo.h
Normal file
58
Source/Core/VideoCommon/Src/Fifo.h
Normal file
@ -0,0 +1,58 @@
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// Copyright (C) 2003-2008 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _FIFO_H
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#define _FIFO_H
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#include "Common.h"
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// inline for speed!
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class FifoReader
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{
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u8 *ptr;
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u8 *end;
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u8 *tempPtr; //single element stack :P
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u8 *tempEnd;
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bool pushed;
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public:
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void Init(u8 *_ptr, u8 *_end)
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{
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ptr = _ptr; end = _end; pushed = false;
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}
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bool IsPushed() {return pushed;}
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void Push(u8 *_ptr, u8 *_end) {pushed = true; tempPtr = ptr; tempEnd = end; ptr = _ptr; end = _end;}
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void Pop() {pushed = false; ptr = tempPtr; end = tempEnd;}
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u8 Peek8 (int offset) const { return ptr[offset]; }
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u16 Peek16(int offset) const { return Common::swap16(*(u16*)(ptr+offset)); }
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u32 Peek32(int offset) const { return Common::swap32(*(u32*)(ptr+offset)); }
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u8 Read8 () {return *ptr++;}
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u16 Read16() {const u16 value = Common::swap16(*((u16*)ptr)); ptr+=2; return value;}
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u32 Read32() {const u32 value = Common::swap32(*((u32*)ptr)); ptr+=4; return value;}
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float Read32F() {const u32 value = Common::swap32(*((u32*)ptr)); ptr+=4; return *(float*)&value;}
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int GetRemainSize() const { return (int)(end - ptr); }
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u8 *GetPtr() const { return ptr; }
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void MoveEndForward() { end += 32; }
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u8 *GetEnd() const { return end; }
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};
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extern FifoReader fifo;
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void Fifo_Init();
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void Fifo_Shutdown();
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void Fifo_EnterLoop(const SVideoInitialize &video_initialize);
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#endif
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42
Source/Core/VideoCommon/Src/OpcodeDecoding.h
Normal file
42
Source/Core/VideoCommon/Src/OpcodeDecoding.h
Normal file
@ -0,0 +1,42 @@
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// Copyright (C) 2003-2008 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _OPCODE_DECODING_H
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#define _OPCODE_DECODING_H
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#define GX_NOP 0x00
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#define GX_LOAD_BP_REG 0x61
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#define GX_LOAD_CP_REG 0x08
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#define GX_LOAD_XF_REG 0x10
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#define GX_LOAD_INDX_A 0x20
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#define GX_LOAD_INDX_B 0x28
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#define GX_LOAD_INDX_C 0x30
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#define GX_LOAD_INDX_D 0x38
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#define GX_CMD_CALL_DL 0x40
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#define GX_CMD_INVL_VC 0x48
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#define GX_PRIMITIVE_MASK 0x78
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#define GX_PRIMITIVE_SHIFT 3
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#define GX_VAT_MASK 0x07
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void OpcodeDecoder_Init();
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void OpcodeDecoder_Shutdown();
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void OpcodeDecoder_Run();
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#endif
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@ -6,6 +6,7 @@ files = ["BPMemory.cpp",
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"TextureDecoder.cpp",
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"XFMemory.cpp",
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"XFBConvert.cpp",
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"Fifo.cpp",
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]
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env_common = env.Copy(CXXFLAGS = " -fPIC ")
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@ -43,7 +43,7 @@
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<Tool
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Name="VCCLCompilerTool"
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Optimization="0"
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AdditionalIncludeDirectories="../../Core/Common/Src;"
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AdditionalIncludeDirectories="../../Core/Common/Src;../../PluginSpecs"
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PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
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MinimalRebuild="true"
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BasicRuntimeChecks="3"
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@ -106,7 +106,7 @@
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<Tool
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Name="VCCLCompilerTool"
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Optimization="0"
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AdditionalIncludeDirectories="../../Core/Common/Src;"
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AdditionalIncludeDirectories="../../Core/Common/Src;../../PluginSpecs"
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PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
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MinimalRebuild="true"
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BasicRuntimeChecks="3"
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@ -168,7 +168,7 @@
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/>
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<Tool
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Name="VCCLCompilerTool"
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AdditionalIncludeDirectories="../../Core/Common/Src;"
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AdditionalIncludeDirectories="../../Core/Common/Src;../../PluginSpecs"
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PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
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RuntimeLibrary="0"
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UsePrecompiledHeader="0"
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@ -229,7 +229,7 @@
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/>
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<Tool
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Name="VCCLCompilerTool"
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AdditionalIncludeDirectories="../../Core/Common/Src;"
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AdditionalIncludeDirectories="../../Core/Common/Src;../../PluginSpecs"
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PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
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RuntimeLibrary="0"
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UsePrecompiledHeader="0"
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@ -289,7 +289,7 @@
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/>
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<Tool
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Name="VCCLCompilerTool"
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AdditionalIncludeDirectories="../../Core/Common/Src;"
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AdditionalIncludeDirectories="../../Core/Common/Src;../../PluginSpecs"
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PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
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RuntimeLibrary="0"
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UsePrecompiledHeader="0"
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@ -350,7 +350,7 @@
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/>
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<Tool
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Name="VCCLCompilerTool"
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AdditionalIncludeDirectories="../../Core/Common/Src;"
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AdditionalIncludeDirectories="../../Core/Common/Src;../../PluginSpecs"
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PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
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RuntimeLibrary="0"
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UsePrecompiledHeader="0"
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@ -405,6 +405,14 @@
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RelativePath=".\Src\CPMemory.h"
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>
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</File>
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<File
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RelativePath=".\Src\Fifo.cpp"
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>
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</File>
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<File
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RelativePath=".\Src\Fifo.h"
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>
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</File>
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<File
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RelativePath=".\Src\LookUpTables.cpp"
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>
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@ -413,6 +421,10 @@
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RelativePath=".\Src\LookUpTables.h"
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>
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</File>
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<File
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RelativePath=".\Src\OpcodeDecoding.h"
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>
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</File>
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<File
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RelativePath=".\Src\SConscript"
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>
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