mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-11-15 13:57:57 -07:00
477 lines
12 KiB
C++
477 lines
12 KiB
C++
// Copyright (C) 2003 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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//DL facts:
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// Ikaruga uses (nearly) NO display lists!
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// Zelda WW uses TONS of display lists
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// Zelda TP uses almost 100% display lists except menus (we like this!)
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// Super Mario Galaxy has nearly all geometry and more than half of the state in DLs (great!)
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// Note that it IS NOT GENERALLY POSSIBLE to precompile display lists! You can compile them as they are
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// while interpreting them, and hope that the vertex format doesn't change, though, if you do it right
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// when they are called. The reason is that the vertex format affects the sizes of the vertices.
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#include "Common.h"
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#include "VideoCommon.h"
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#include "OpcodeDecoding.h"
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#include "CommandProcessor.h"
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#include "CPUDetect.h"
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#include "Core.h"
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#include "Host.h"
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#include "HW/Memmap.h"
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#include "FifoPlayer/FifoRecorder.h"
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#include "VertexLoaderManager.h"
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#include "Statistics.h"
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#include "XFMemory.h"
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#include "CPMemory.h"
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#include "BPMemory.h"
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#include "Fifo.h"
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#include "DataReader.h"
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#include "OpenCL.h"
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#include "OpenCL/OCLTextureDecoder.h"
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#include "VideoConfig.h"
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u8* g_pVideoData = 0;
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bool g_bRecordFifoData = false;
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#if _M_SSE >= 0x301
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DataReadU32xNfunc DataReadU32xFuncs_SSSE3[16] = {
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DataReadU32xN_SSSE3<1>,
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DataReadU32xN_SSSE3<2>,
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DataReadU32xN_SSSE3<3>,
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DataReadU32xN_SSSE3<4>,
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DataReadU32xN_SSSE3<5>,
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DataReadU32xN_SSSE3<6>,
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DataReadU32xN_SSSE3<7>,
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DataReadU32xN_SSSE3<8>,
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DataReadU32xN_SSSE3<9>,
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DataReadU32xN_SSSE3<10>,
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DataReadU32xN_SSSE3<11>,
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DataReadU32xN_SSSE3<12>,
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DataReadU32xN_SSSE3<13>,
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DataReadU32xN_SSSE3<14>,
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DataReadU32xN_SSSE3<15>,
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DataReadU32xN_SSSE3<16>
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};
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#endif
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DataReadU32xNfunc DataReadU32xFuncs[16] = {
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DataReadU32xN<1>,
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DataReadU32xN<2>,
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DataReadU32xN<3>,
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DataReadU32xN<4>,
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DataReadU32xN<5>,
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DataReadU32xN<6>,
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DataReadU32xN<7>,
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DataReadU32xN<8>,
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DataReadU32xN<9>,
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DataReadU32xN<10>,
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DataReadU32xN<11>,
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DataReadU32xN<12>,
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DataReadU32xN<13>,
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DataReadU32xN<14>,
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DataReadU32xN<15>,
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DataReadU32xN<16>
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};
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extern u8* GetVideoBufferStartPtr();
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extern u8* GetVideoBufferEndPtr();
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static void Decode();
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void InterpretDisplayList(u32 address, u32 size)
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{
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u8* old_pVideoData = g_pVideoData;
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u8* startAddress = Memory::GetPointer(address);
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// Avoid the crash if Memory::GetPointer failed ..
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if (startAddress != 0)
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{
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g_pVideoData = startAddress;
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// temporarily swap dl and non-dl (small "hack" for the stats)
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Statistics::SwapDL();
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u8 *end = g_pVideoData + size;
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while (g_pVideoData < end)
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{
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Decode();
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}
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INCSTAT(stats.numDListsCalled);
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INCSTAT(stats.thisFrame.numDListsCalled);
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// un-swap
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Statistics::SwapDL();
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}
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// reset to the old pointer
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g_pVideoData = old_pVideoData;
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}
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// Defer to backend-specific DL cache.
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extern bool HandleDisplayList(u32 address, u32 size);
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void ExecuteDisplayList(u32 address, u32 size)
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{
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if (!HandleDisplayList(address, size))
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InterpretDisplayList(address, size);
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}
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bool FifoCommandRunnable()
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{
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u32 buffer_size = (u32)(GetVideoBufferEndPtr() - g_pVideoData);
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if (buffer_size == 0)
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return false; // can't peek
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u8 cmd_byte = DataPeek8(0);
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u32 command_size = 0;
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switch (cmd_byte)
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{
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case GX_NOP: // Hm, this means that we scan over nop streams pretty slowly...
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case GX_CMD_INVL_VC: // Invalidate Vertex Cache - no parameters
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case GX_CMD_UNKNOWN_METRICS: // zelda 4 swords calls it and checks the metrics registers after that
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command_size = 1;
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break;
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case GX_LOAD_BP_REG:
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command_size = 5;
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break;
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case GX_LOAD_CP_REG:
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command_size = 6;
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break;
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case GX_LOAD_INDX_A:
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case GX_LOAD_INDX_B:
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case GX_LOAD_INDX_C:
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case GX_LOAD_INDX_D:
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command_size = 5;
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break;
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case GX_CMD_CALL_DL:
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command_size = 9;
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break;
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case GX_LOAD_XF_REG:
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{
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// check if we can read the header
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if (buffer_size >= 5)
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{
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command_size = 1 + 4;
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u32 Cmd2 = DataPeek32(1);
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int transfer_size = ((Cmd2 >> 16) & 15) + 1;
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command_size += transfer_size * 4;
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}
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else
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{
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return false;
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}
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}
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break;
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default:
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if (cmd_byte & 0x80)
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{
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// check if we can read the header
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if (buffer_size >= 3)
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{
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command_size = 1 + 2;
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u16 numVertices = DataPeek16(1);
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command_size += numVertices * VertexLoaderManager::GetVertexSize(cmd_byte & GX_VAT_MASK);
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}
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else
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{
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return false;
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}
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}
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else
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{
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// TODO(Omega): Maybe dump FIFO to file on this error
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char szTemp[1024];
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sprintf(szTemp, "GFX FIFO: Unknown Opcode (0x%x).\n"
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"This means one of the following:\n"
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"* The emulated GPU got desynced, disabling dual core can help\n"
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"* Command stream corrupted by some spurious memory bug\n"
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"* This really is an unknown opcode (unlikely)\n"
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"* Some other sort of bug\n\n"
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"Dolphin will now likely crash or hang. Enjoy." , cmd_byte);
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Host_SysMessage(szTemp);
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INFO_LOG(VIDEO, "%s", szTemp);
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{
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SCPFifoStruct &fifo = CommandProcessor::fifo;
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char szTmp[512];
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// sprintf(szTmp, "Illegal command %02x (at %08x)",cmd_byte,g_pDataReader->GetPtr());
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sprintf(szTmp, "Illegal command %02x\n"
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"CPBase: 0x%08x\n"
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"CPEnd: 0x%08x\n"
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"CPHiWatermark: 0x%08x\n"
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"CPLoWatermark: 0x%08x\n"
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"CPReadWriteDistance: 0x%08x\n"
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"CPWritePointer: 0x%08x\n"
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"CPReadPointer: 0x%08x\n"
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"CPBreakpoint: 0x%08x\n"
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"bFF_GPReadEnable: %s\n"
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"bFF_BPEnable: %s\n"
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"bFF_BPInt: %s\n"
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"bFF_Breakpoint: %s\n"
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,cmd_byte, fifo.CPBase, fifo.CPEnd, fifo.CPHiWatermark, fifo.CPLoWatermark, fifo.CPReadWriteDistance
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,fifo.CPWritePointer, fifo.CPReadPointer, fifo.CPBreakpoint, fifo.bFF_GPReadEnable ? "true" : "false"
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,fifo.bFF_BPEnable ? "true" : "false" ,fifo.bFF_BPInt ? "true" : "false"
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,fifo.bFF_Breakpoint ? "true" : "false");
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Host_SysMessage(szTmp);
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INFO_LOG(VIDEO, "%s", szTmp);
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}
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}
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break;
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}
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if (command_size > buffer_size)
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return false;
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// INFO_LOG("OP detected: cmd_byte 0x%x size %i buffer %i",cmd_byte, command_size, buffer_size);
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return true;
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}
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static void Decode()
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{
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u8 *opcodeStart = g_pVideoData;
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int cmd_byte = DataReadU8();
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switch (cmd_byte)
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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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u8 sub_cmd = DataReadU8();
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u32 value = DataReadU32();
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LoadCPReg(sub_cmd, value);
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INCSTAT(stats.thisFrame.numCPLoads);
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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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int transfer_size = ((Cmd2 >> 16) & 15) + 1;
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u32 xf_address = Cmd2 & 0xFFFF;
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GC_ALIGNED128(u32 data_buffer[16]);
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DataReadU32xFuncs[transfer_size-1](data_buffer);
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LoadXFReg(transfer_size, xf_address, data_buffer);
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INCSTAT(stats.thisFrame.numXFLoads);
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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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LoadIndexedXF(DataReadU32(), 0xC);
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break;
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case GX_LOAD_INDX_B: //used for normal matrices
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LoadIndexedXF(DataReadU32(), 0xD);
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break;
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case GX_LOAD_INDX_C: //used for postmatrices
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LoadIndexedXF(DataReadU32(), 0xE);
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break;
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case GX_LOAD_INDX_D: //used for lights
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LoadIndexedXF(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 address = DataReadU32();
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u32 count = DataReadU32();
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ExecuteDisplayList(address, count);
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}
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break;
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case GX_CMD_UNKNOWN_METRICS: // zelda 4 swords calls it and checks the metrics registers after that
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DEBUG_LOG(VIDEO, "GX 0x44: %08x", cmd_byte);
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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 bp_cmd = DataReadU32();
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LoadBPReg(bp_cmd);
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INCSTAT(stats.thisFrame.numBPLoads);
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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_byte & 0x80)
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{
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// load vertices (use computed vertex size from FifoCommandRunnable above)
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u16 numVertices = DataReadU16();
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VertexLoaderManager::RunVertices(
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cmd_byte & GX_VAT_MASK, // Vertex loader index (0 - 7)
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(cmd_byte & GX_PRIMITIVE_MASK) >> GX_PRIMITIVE_SHIFT,
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numVertices);
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}
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else
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{
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ERROR_LOG(VIDEO, "OpcodeDecoding::Decode: Illegal command %02x", cmd_byte);
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break;
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}
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break;
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}
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// Display lists get added directly into the FIFO stream
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if (g_bRecordFifoData && cmd_byte != GX_CMD_CALL_DL)
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FifoRecorder::GetInstance().WriteGPCommand(opcodeStart, g_pVideoData - opcodeStart);
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}
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static void DecodeSemiNop()
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{
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u8 *opcodeStart = g_pVideoData;
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int cmd_byte = DataReadU8();
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switch (cmd_byte)
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{
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case GX_CMD_UNKNOWN_METRICS: // zelda 4 swords calls it and checks the metrics registers after that
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case GX_CMD_INVL_VC: // Invalidate Vertex Cache
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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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// We have to let CP writes through because they determine the size of vertices.
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{
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u8 sub_cmd = DataReadU8();
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u32 value = DataReadU32();
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LoadCPReg(sub_cmd, value);
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INCSTAT(stats.thisFrame.numCPLoads);
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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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int transfer_size = ((Cmd2 >> 16) & 15) + 1;
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u32 address = Cmd2 & 0xFFFF;
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GC_ALIGNED128(u32 data_buffer[16]);
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DataReadU32xFuncs[transfer_size-1](data_buffer);
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LoadXFReg(transfer_size, address, data_buffer);
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INCSTAT(stats.thisFrame.numXFLoads);
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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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LoadIndexedXF(DataReadU32(), 0xC);
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break;
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case GX_LOAD_INDX_B: //used for normal matrices
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LoadIndexedXF(DataReadU32(), 0xD);
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break;
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case GX_LOAD_INDX_C: //used for postmatrices
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LoadIndexedXF(DataReadU32(), 0xE);
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break;
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case GX_LOAD_INDX_D: //used for lights
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LoadIndexedXF(DataReadU32(), 0xF);
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break;
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case GX_CMD_CALL_DL:
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// Hm, wonder if any games put tokens in display lists - in that case,
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// we'll have to parse them too.
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DataSkip(8);
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break;
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case GX_LOAD_BP_REG: //0x61
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// We have to let BP writes through because they set tokens and stuff.
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// TODO: Call a much simplified LoadBPReg instead.
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{
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u32 bp_cmd = DataReadU32();
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LoadBPReg(bp_cmd);
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INCSTAT(stats.thisFrame.numBPLoads);
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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_byte & 0x80)
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{
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// load vertices (use computed vertex size from FifoCommandRunnable above)
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u16 numVertices = DataReadU16();
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DataSkip(numVertices * VertexLoaderManager::GetVertexSize(cmd_byte & GX_VAT_MASK));
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}
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else
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{
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ERROR_LOG(VIDEO, "OpcodeDecoding::Decode: Illegal command %02x", cmd_byte);
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break;
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}
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break;
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}
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if (g_bRecordFifoData && cmd_byte != GX_CMD_CALL_DL)
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FifoRecorder::GetInstance().WriteGPCommand(opcodeStart, g_pVideoData - opcodeStart);
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}
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void OpcodeDecoder_Init()
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{
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g_pVideoData = GetVideoBufferStartPtr();
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#if _M_SSE >= 0x301
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if (cpu_info.bSSSE3)
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{
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for (int i = 0; i < 16; ++i)
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DataReadU32xFuncs[i] = DataReadU32xFuncs_SSSE3[i];
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}
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#endif
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if (g_Config.bEnableOpenCL)
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{
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OpenCL::Initialize();
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TexDecoder_OpenCL_Initialize();
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}
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}
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void OpcodeDecoder_Shutdown()
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{
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if (g_Config.bEnableOpenCL)
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{
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TexDecoder_OpenCL_Shutdown();
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OpenCL::Destroy();
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}
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}
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void OpcodeDecoder_Run(bool skipped_frame)
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{
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if (!skipped_frame)
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{
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while (FifoCommandRunnable())
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Decode();
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}
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else
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{
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while (FifoCommandRunnable())
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DecodeSemiNop();
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}
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}
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