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Remove unnecessary Src/ folders
This commit is contained in:
Jasper St. Pierre
305
Source/Core/VideoBackends/Software/OpcodeDecoder.cpp
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305
Source/Core/VideoBackends/Software/OpcodeDecoder.cpp
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// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include "Common.h"
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#include "DataReader.h"
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#include "OpcodeDecoder.h"
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#include "BPMemLoader.h"
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#include "CPMemLoader.h"
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#include "XFMemLoader.h"
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#include "SWVertexLoader.h"
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#include "SWStatistics.h"
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#include "DebugUtil.h"
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#include "SWCommandProcessor.h"
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#include "CPMemLoader.h"
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#include "SWVideoConfig.h"
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#include "HW/Memmap.h"
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typedef void (*DecodingFunction)(u32);
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namespace OpcodeDecoder
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{
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static DecodingFunction currentFunction = NULL;
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static u32 minCommandSize;
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static u16 streamSize;
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static u16 streamAddress;
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static bool readOpcode;
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static SWVertexLoader vertexLoader;
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static bool inObjectStream;
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static u8 lastPrimCmd;
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void DoState(PointerWrap &p)
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{
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p.Do(minCommandSize);
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// Not sure what is wrong with this. Something(s) in here is causing dolphin to crash/hang when loading states saved from another run of dolphin. Doesn't seem too important anyway...
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//vertexLoader.DoState(p);
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p.Do(readOpcode);
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p.Do(inObjectStream);
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p.Do(lastPrimCmd);
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p.Do(streamSize);
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p.Do(streamAddress);
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if (p.GetMode() == PointerWrap::MODE_READ)
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ResetDecoding();
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}
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void DecodePrimitiveStream(u32 iBufferSize)
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{
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u32 vertexSize = vertexLoader.GetVertexSize();
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bool skipPrimitives = g_bSkipCurrentFrame ||
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swstats.thisFrame.numDrawnObjects < g_SWVideoConfig.drawStart ||
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swstats.thisFrame.numDrawnObjects >= g_SWVideoConfig.drawEnd;
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if (skipPrimitives)
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{
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while (streamSize > 0 && iBufferSize >= vertexSize)
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{
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g_pVideoData += vertexSize;
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iBufferSize -= vertexSize;
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streamSize--;
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}
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}
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else
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{
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while (streamSize > 0 && iBufferSize >= vertexSize)
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{
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vertexLoader.LoadVertex();
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iBufferSize -= vertexSize;
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streamSize--;
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}
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}
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if (streamSize == 0)
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{
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// return to normal command processing
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ResetDecoding();
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}
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}
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void ReadXFData(u32 iBufferSize)
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{
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_assert_msg_(VIDEO, iBufferSize >= (u32)(streamSize * 4), "Underflow during standard opcode decoding");
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u32 pData[16];
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for (int i = 0; i < streamSize; i++)
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pData[i] = DataReadU32();
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SWLoadXFReg(streamSize, streamAddress, pData);
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// return to normal command processing
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ResetDecoding();
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}
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void ExecuteDisplayList(u32 addr, u32 count)
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{
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u8 *videoDataSave = g_pVideoData;
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u8 *dlStart = Memory::GetPointer(addr);
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g_pVideoData = dlStart;
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while (OpcodeDecoder::CommandRunnable(count))
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{
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OpcodeDecoder::Run(count);
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// if data was read by the opcode decoder then the video data pointer changed
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u32 readCount = (u32)(g_pVideoData - dlStart);
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dlStart = g_pVideoData;
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_assert_msg_(VIDEO, count >= readCount, "Display list underrun");
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count -= readCount;
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}
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g_pVideoData = videoDataSave;
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}
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void DecodeStandard(u32 bufferSize)
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{
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_assert_msg_(VIDEO, CommandRunnable(bufferSize), "Underflow during standard opcode decoding");
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int Cmd = DataReadU8();
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if (Cmd == GX_NOP)
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return;
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// Causes a SIGBUS error on Android
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// XXX: Investigate
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#ifndef ANDROID
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// check if switching in or out of an object
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// only used for debugging
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if (inObjectStream && (Cmd & 0x87) != lastPrimCmd)
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{
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inObjectStream = false;
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DebugUtil::OnObjectEnd();
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}
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if (Cmd & 0x80 && !inObjectStream)
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{
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inObjectStream = true;
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lastPrimCmd = Cmd & 0x87;
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DebugUtil::OnObjectBegin();
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}
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#endif
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switch(Cmd)
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{
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case GX_NOP:
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break;
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case GX_LOAD_CP_REG: //0x08
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{
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u32 SubCmd = DataReadU8();
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u32 Value = DataReadU32();
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SWLoadCPReg(SubCmd, Value);
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}
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break;
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case GX_LOAD_XF_REG:
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{
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u32 Cmd2 = DataReadU32();
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streamSize = ((Cmd2 >> 16) & 15) + 1;
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streamAddress = Cmd2 & 0xFFFF;
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currentFunction = ReadXFData;
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minCommandSize = streamSize * 4;
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readOpcode = false;
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}
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break;
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case GX_LOAD_INDX_A: //used for position matrices
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SWLoadIndexedXF(DataReadU32(), 0xC);
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break;
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case GX_LOAD_INDX_B: //used for normal matrices
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SWLoadIndexedXF(DataReadU32(), 0xD);
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break;
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case GX_LOAD_INDX_C: //used for postmatrices
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SWLoadIndexedXF(DataReadU32(), 0xE);
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break;
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case GX_LOAD_INDX_D: //used for lights
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SWLoadIndexedXF(DataReadU32(), 0xF);
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break;
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case GX_CMD_CALL_DL:
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{
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u32 dwAddr = DataReadU32();
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u32 dwCount = DataReadU32();
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ExecuteDisplayList(dwAddr, dwCount);
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}
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break;
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case 0x44:
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// zelda 4 swords calls it and checks the metrics registers after that
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break;
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case GX_CMD_INVL_VC:// Invalidate (vertex cache?)
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DEBUG_LOG(VIDEO, "Invalidate (vertex cache?)");
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break;
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case GX_LOAD_BP_REG: //0x61
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{
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u32 cmd = DataReadU32();
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SWLoadBPReg(cmd);
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}
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break;
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// draw primitives
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default:
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if (Cmd & 0x80)
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{
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u8 vatIndex = Cmd & GX_VAT_MASK;
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u8 primitiveType = (Cmd & GX_PRIMITIVE_MASK) >> GX_PRIMITIVE_SHIFT;
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vertexLoader.SetFormat(vatIndex, primitiveType);
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// switch to primitive processing
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streamSize = DataReadU16();
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currentFunction = DecodePrimitiveStream;
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minCommandSize = vertexLoader.GetVertexSize();
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readOpcode = false;
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INCSTAT(swstats.thisFrame.numPrimatives);
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DEBUG_LOG(VIDEO, "Draw begin");
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}
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else
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{
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PanicAlert("GFX: Unknown Opcode (0x%x).\n", Cmd);
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break;
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}
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break;
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}
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}
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void Init()
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{
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inObjectStream = false;
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lastPrimCmd = 0;
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ResetDecoding();
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}
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void ResetDecoding()
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{
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currentFunction = DecodeStandard;
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minCommandSize = 1;
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readOpcode = true;
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}
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bool CommandRunnable(u32 iBufferSize)
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{
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if (iBufferSize < minCommandSize)
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return false;
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if (readOpcode)
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{
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u8 Cmd = DataPeek8(0);
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u32 minSize = 1;
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switch(Cmd)
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{
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case GX_LOAD_CP_REG: //0x08
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minSize = 6;
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break;
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case GX_LOAD_XF_REG:
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minSize = 5;
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break;
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case GX_LOAD_INDX_A: //used for position matrices
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minSize = 5;
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break;
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case GX_LOAD_INDX_B: //used for normal matrices
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minSize = 5;
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break;
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case GX_LOAD_INDX_C: //used for postmatrices
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minSize = 5;
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break;
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case GX_LOAD_INDX_D: //used for lights
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minSize = 5;
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break;
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case GX_CMD_CALL_DL:
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minSize = 9;
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break;
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case GX_LOAD_BP_REG: //0x61
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minSize = 5;
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break;
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// draw primitives
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default:
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if (Cmd & 0x80)
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minSize = 3;
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break;
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}
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return (iBufferSize >= minSize);
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}
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return true;
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}
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void Run(u32 iBufferSize)
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{
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currentFunction(iBufferSize);
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}
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}
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