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VideoCommon: cleanup OpcodeDecoder

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This commit is contained in:
degasus 2014-11-27 23:53:11 +01:00
parent 4b22885ed8
commit 21970c4a2a
8 changed files with 197 additions and 224 deletions
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8
Source/Core/VideoCommon/Fifo.cpp
View file

@ -252,7 +252,7 @@ static void ReadDataFromFifoOnCPU(u32 readPtr)
}
}
Memory::CopyFromEmu(s_video_buffer_write_ptr, readPtr, len);
s_video_buffer_pp_read_ptr = OpcodeDecoder_Preprocess(s_video_buffer_pp_read_ptr, write_ptr + len, false);
s_video_buffer_pp_read_ptr = OpcodeDecoder_Run<true>(DataReader(s_video_buffer_pp_read_ptr, write_ptr + len), nullptr, false);
// This would have to be locked if the GPU thread didn't spin.
s_video_buffer_write_ptr = write_ptr + len;
}
@ -294,7 +294,7 @@ void RunGpuLoop()
// See comment in SyncGPU
if (write_ptr > seen_ptr)
{
s_video_buffer_read_ptr = OpcodeDecoder_Run(s_video_buffer_read_ptr, write_ptr, nullptr, false);
s_video_buffer_read_ptr = OpcodeDecoder_Run(DataReader(s_video_buffer_read_ptr, write_ptr), nullptr, false);
{
std::lock_guard<std::mutex> vblk(s_video_buffer_lock);
@ -330,7 +330,7 @@ void RunGpuLoop()
u8* write_ptr = s_video_buffer_write_ptr;
s_video_buffer_read_ptr = OpcodeDecoder_Run(s_video_buffer_read_ptr, write_ptr, &cyclesExecuted, false);
s_video_buffer_read_ptr = OpcodeDecoder_Run(DataReader(s_video_buffer_read_ptr, write_ptr), &cyclesExecuted, false);
if (SConfig::GetInstance().m_LocalCoreStartupParameter.bSyncGPU && Common::AtomicLoad(CommandProcessor::VITicks) >= cyclesExecuted)
@ -403,7 +403,7 @@ void RunGpu()
FPURoundMode::SaveSIMDState();
FPURoundMode::LoadDefaultSIMDState();
ReadDataFromFifo(fifo.CPReadPointer);
s_video_buffer_read_ptr = OpcodeDecoder_Run(s_video_buffer_read_ptr, s_video_buffer_write_ptr, nullptr, false);
s_video_buffer_read_ptr = OpcodeDecoder_Run(DataReader(s_video_buffer_read_ptr, s_video_buffer_write_ptr), nullptr, false);
FPURoundMode::LoadSIMDState();
}

377
Source/Core/VideoCommon/OpcodeDecoding.cpp
View file

@ -34,12 +34,8 @@
bool g_bRecordFifoData = false;
u8* g_video_buffer_read_ptr;
static u8* s_video_buffer_pp_read_ptr;
static u32 InterpretDisplayList(u32 address, u32 size)
{
u8* old_pVideoData = g_video_buffer_read_ptr;
u8* startAddress;
if (g_use_deterministic_gpu_thread)
@ -55,32 +51,26 @@ static u32 InterpretDisplayList(u32 address, u32 size)
// temporarily swap dl and non-dl (small "hack" for the stats)
Statistics::SwapDL();
OpcodeDecoder_Run(startAddress, startAddress + size, &cycles, true);
OpcodeDecoder_Run(DataReader(startAddress, startAddress + size), &cycles, true);
INCSTAT(stats.thisFrame.numDListsCalled);
// un-swap
Statistics::SwapDL();
}
// reset to the old pointer
g_video_buffer_read_ptr = old_pVideoData;
return cycles;
}
static void InterpretDisplayListPreprocess(u32 address, u32 size)
{
u8* old_read_ptr = s_video_buffer_pp_read_ptr;
u8* startAddress = Memory::GetPointer(address);
PushFifoAuxBuffer(startAddress, size);
if (startAddress != nullptr)
{
OpcodeDecoder_Preprocess(startAddress, startAddress + size, true);
OpcodeDecoder_Run<true>(DataReader(startAddress, startAddress + size), nullptr, true);
}
s_video_buffer_pp_read_ptr = old_read_ptr;
}
static void UnknownOpcode(u8 cmd_byte, void *buffer, bool preprocess)
@ -131,180 +121,8 @@ static void UnknownOpcode(u8 cmd_byte, void *buffer, bool preprocess)
}
}
template <bool is_preprocess, u8** bufp>
static u32 Decode(u8* end, bool in_display_list)
{
u8 *opcodeStart = *bufp;
if (*bufp == end)
return 0;
u8 cmd_byte = DataRead<u8>(bufp);
u32 cycles;
int refarray;
switch (cmd_byte)
{
case GX_NOP:
cycles = 6; // Hm, this means that we scan over nop streams pretty slowly...
break;
case GX_LOAD_CP_REG: //0x08
{
if (end - *bufp < 1 + 4)
return 0;
cycles = 12;
u8 sub_cmd = DataRead<u8>(bufp);
u32 value = DataRead<u32>(bufp);
LoadCPReg(sub_cmd, value, is_preprocess);
if (!is_preprocess)
INCSTAT(stats.thisFrame.numCPLoads);
}
break;
case GX_LOAD_XF_REG:
{
if (end - *bufp < 4)
return 0;
u32 Cmd2 = DataRead<u32>(bufp);
int transfer_size = ((Cmd2 >> 16) & 15) + 1;
if ((size_t) (end - *bufp) < transfer_size * sizeof(u32))
return 0;
cycles = 18 + 6 * transfer_size;
if (!is_preprocess)
{
u32 xf_address = Cmd2 & 0xFFFF;
LoadXFReg(transfer_size, xf_address);
INCSTAT(stats.thisFrame.numXFLoads);
}
else
{
*bufp += transfer_size * sizeof(u32);
}
}
break;
case GX_LOAD_INDX_A: //used for position matrices
refarray = 0xC;
goto load_indx;
case GX_LOAD_INDX_B: //used for normal matrices
refarray = 0xD;
goto load_indx;
case GX_LOAD_INDX_C: //used for postmatrices
refarray = 0xE;
goto load_indx;
case GX_LOAD_INDX_D: //used for lights
refarray = 0xF;
goto load_indx;
load_indx:
if (end - *bufp < 4)
return 0;
cycles = 6;
if (is_preprocess)
PreprocessIndexedXF(DataRead<u32>(bufp), refarray);
else
LoadIndexedXF(DataRead<u32>(bufp), refarray);
break;
case GX_CMD_CALL_DL:
{
if (end - *bufp < 8)
return 0;
u32 address = DataRead<u32>(bufp);
u32 count = DataRead<u32>(bufp);
if (in_display_list)
{
cycles = 6;
WARN_LOG(VIDEO,"recursive display list detected");
}
else
{
if (is_preprocess)
InterpretDisplayListPreprocess(address, count);
else
cycles = 6 + InterpretDisplayList(address, count);
}
}
break;
case GX_CMD_UNKNOWN_METRICS: // zelda 4 swords calls it and checks the metrics registers after that
cycles = 6;
DEBUG_LOG(VIDEO, "GX 0x44: %08x", cmd_byte);
break;
case GX_CMD_INVL_VC: // Invalidate Vertex Cache
cycles = 6;
DEBUG_LOG(VIDEO, "Invalidate (vertex cache?)");
break;
case GX_LOAD_BP_REG: //0x61
// In skipped_frame case: We have to let BP writes through because they set
// tokens and stuff. TODO: Call a much simplified LoadBPReg instead.
{
if (end - *bufp < 4)
return 0;
cycles = 12;
u32 bp_cmd = DataRead<u32>(bufp);
if (is_preprocess)
{
LoadBPRegPreprocess(bp_cmd);
}
else
{
LoadBPReg(bp_cmd);
INCSTAT(stats.thisFrame.numBPLoads);
}
}
break;
// draw primitives
default:
if ((cmd_byte & 0xC0) == 0x80)
{
cycles = 1600;
// load vertices
if (end - *bufp < 2)
return 0;
u16 num_vertices = DataRead<u16>(bufp);
if (is_preprocess)
{
size_t size = num_vertices * VertexLoaderManager::GetVertexSize(cmd_byte & GX_VAT_MASK, is_preprocess);
if ((size_t) (end - *bufp) < size)
return 0;
*bufp += size;
}
else
{
if (!VertexLoaderManager::RunVertices(
cmd_byte & GX_VAT_MASK, // Vertex loader index (0 - 7)
(cmd_byte & GX_PRIMITIVE_MASK) >> GX_PRIMITIVE_SHIFT,
num_vertices,
end - *bufp,
g_bSkipCurrentFrame))
return 0;
}
}
else
{
UnknownOpcode(cmd_byte, opcodeStart, is_preprocess);
cycles = 1;
}
break;
}
// Display lists get added directly into the FIFO stream
if (!is_preprocess && g_bRecordFifoData && cmd_byte != GX_CMD_CALL_DL)
FifoRecorder::GetInstance().WriteGPCommand(opcodeStart, u32(*bufp - opcodeStart));
// In is_preprocess mode, we don't actually care about cycles, at least for
// now... make sure the compiler realizes that.
return is_preprocess ? 1 : cycles;
}
void OpcodeDecoder_Init()
{
g_video_buffer_read_ptr = GetVideoBufferStartPtr();
}
@ -312,40 +130,185 @@ void OpcodeDecoder_Shutdown()
{
}
u8* OpcodeDecoder_Run(u8* start, u8* end, u32* cycles, bool in_display_list)
template <bool is_preprocess>
u8* OpcodeDecoder_Run(DataReader src, u32* cycles, bool in_display_list)
{
g_video_buffer_read_ptr = start;
u32 totalCycles = 0;
u8* opcodeStart;
while (true)
{
u8* old = g_video_buffer_read_ptr;
u32 cycles_op = Decode</*is_preprocess*/ false, &g_video_buffer_read_ptr>(end, in_display_list);
if (cycles_op == 0)
src.WritePointer(&opcodeStart);
if (!src.size())
goto end;
u8 cmd_byte = src.Read<u8>();
int refarray;
switch (cmd_byte)
{
g_video_buffer_read_ptr = old;
case GX_NOP:
totalCycles += 6; // Hm, this means that we scan over nop streams pretty slowly...
break;
case GX_LOAD_CP_REG: //0x08
{
if (src.size() < 1 + 4)
goto end;
totalCycles += 12;
u8 sub_cmd = src.Read<u8>();
u32 value = src.Read<u32>();
LoadCPReg(sub_cmd, value, is_preprocess);
if (!is_preprocess)
INCSTAT(stats.thisFrame.numCPLoads);
}
break;
case GX_LOAD_XF_REG:
{
if (src.size() < 4)
goto end;
u32 Cmd2 = src.Read<u32>();
int transfer_size = ((Cmd2 >> 16) & 15) + 1;
if (src.size() < transfer_size * sizeof(u32))
goto end;
totalCycles += 18 + 6 * transfer_size;
if (!is_preprocess)
{
u32 xf_address = Cmd2 & 0xFFFF;
LoadXFReg(transfer_size, xf_address, src);
INCSTAT(stats.thisFrame.numXFLoads);
}
src.Skip<u32>(transfer_size);
}
break;
case GX_LOAD_INDX_A: //used for position matrices
refarray = 0xC;
goto load_indx;
case GX_LOAD_INDX_B: //used for normal matrices
refarray = 0xD;
goto load_indx;
case GX_LOAD_INDX_C: //used for postmatrices
refarray = 0xE;
goto load_indx;
case GX_LOAD_INDX_D: //used for lights
refarray = 0xF;
goto load_indx;
load_indx:
if (src.size() < 4)
goto end;
totalCycles += 6;
if (is_preprocess)
PreprocessIndexedXF(src.Read<u32>(), refarray);
else
LoadIndexedXF(src.Read<u32>(), refarray);
break;
case GX_CMD_CALL_DL:
{
if (src.size() < 8)
goto end;
u32 address = src.Read<u32>();
u32 count = src.Read<u32>();
if (in_display_list)
{
totalCycles += 6;
WARN_LOG(VIDEO,"recursive display list detected");
}
else
{
if (is_preprocess)
InterpretDisplayListPreprocess(address, count);
else
totalCycles += 6 + InterpretDisplayList(address, count);
}
}
break;
case GX_CMD_UNKNOWN_METRICS: // zelda 4 swords calls it and checks the metrics registers after that
totalCycles += 6;
DEBUG_LOG(VIDEO, "GX 0x44: %08x", cmd_byte);
break;
case GX_CMD_INVL_VC: // Invalidate Vertex Cache
totalCycles += 6;
DEBUG_LOG(VIDEO, "Invalidate (vertex cache?)");
break;
case GX_LOAD_BP_REG: //0x61
// In skipped_frame case: We have to let BP writes through because they set
// tokens and stuff. TODO: Call a much simplified LoadBPReg instead.
{
if (src.size() < 4)
goto end;
totalCycles += 12;
u32 bp_cmd = src.Read<u32>();
if (is_preprocess)
{
LoadBPRegPreprocess(bp_cmd);
}
else
{
LoadBPReg(bp_cmd);
INCSTAT(stats.thisFrame.numBPLoads);
}
}
break;
// draw primitives
default:
if ((cmd_byte & 0xC0) == 0x80)
{
// load vertices
if (src.size() < 2)
goto end;
u16 num_vertices = src.Read<u16>();
if (is_preprocess)
{
size_t size = num_vertices * VertexLoaderManager::GetVertexSize(cmd_byte & GX_VAT_MASK, is_preprocess);
if (src.size() < size)
goto end;
src.Skip(size);
}
else
{
if (!VertexLoaderManager::RunVertices(
cmd_byte & GX_VAT_MASK, // Vertex loader index (0 - 7)
(cmd_byte & GX_PRIMITIVE_MASK) >> GX_PRIMITIVE_SHIFT,
num_vertices,
src,
g_bSkipCurrentFrame))
goto end;
}
totalCycles += 1600;
}
else
{
UnknownOpcode(cmd_byte, opcodeStart, is_preprocess);
totalCycles += 1;
}
break;
}
totalCycles += cycles_op;
// Display lists get added directly into the FIFO stream
if (!is_preprocess && g_bRecordFifoData && cmd_byte != GX_CMD_CALL_DL)
{
u8* opcodeEnd;
src.WritePointer(&opcodeEnd);
FifoRecorder::GetInstance().WriteGPCommand(opcodeStart, u32(opcodeEnd - opcodeStart));
}
}
end:
if (cycles)
{
*cycles = totalCycles;
}
return g_video_buffer_read_ptr;
return opcodeStart;
}
u8* OpcodeDecoder_Preprocess(u8* start, u8 *end, bool in_display_list)
{
s_video_buffer_pp_read_ptr = start;
while (true)
{
u8* old = s_video_buffer_pp_read_ptr;
u32 cycles = Decode</*is_preprocess*/ true, &s_video_buffer_pp_read_ptr>(end, in_display_list);
if (cycles == 0)
{
s_video_buffer_pp_read_ptr = old;
break;
}
}
return s_video_buffer_pp_read_ptr;
}
template u8* OpcodeDecoder_Run<true>(DataReader src, u32* cycles, bool in_display_list);
template u8* OpcodeDecoder_Run<false>(DataReader src, u32* cycles, bool in_display_list);

6
Source/Core/VideoCommon/OpcodeDecoding.h
View file

@ -5,6 +5,7 @@
#pragma once
#include "Common/CommonTypes.h"
#include "VideoCommon/DataReader.h"
#define GX_NOP 0x00
@ -40,5 +41,6 @@ extern bool g_bRecordFifoData;
void OpcodeDecoder_Init();
void OpcodeDecoder_Shutdown();
u8* OpcodeDecoder_Run(u8* start, u8* end, u32* cycles, bool in_display_list);
u8* OpcodeDecoder_Preprocess(u8* start, u8* end, bool in_display_list);
template <bool is_preprocess = false>
u8* OpcodeDecoder_Run(DataReader src, u32* cycles, bool in_display_list);

3
Source/Core/VideoCommon/VertexLoader.cpp
View file

@ -45,6 +45,9 @@ int colElements[2];
GC_ALIGNED128(float posScale[4]);
GC_ALIGNED64(float tcScale[8][2]);
// This pointer is used as the source for all fixed function loader calls
u8* g_video_buffer_read_ptr;
static const float fractionTable[32] = {
1.0f / (1U << 0), 1.0f / (1U << 1), 1.0f / (1U << 2), 1.0f / (1U << 3),
1.0f / (1U << 4), 1.0f / (1U << 5), 1.0f / (1U << 6), 1.0f / (1U << 7),

9
Source/Core/VideoCommon/VertexLoaderManager.cpp
View file

@ -130,7 +130,7 @@ static VertexLoader* RefreshLoader(int vtx_attr_group, CPState* state)
return loader;
}
bool RunVertices(int vtx_attr_group, int primitive, int count, size_t buf_size, bool skip_drawing)
bool RunVertices(int vtx_attr_group, int primitive, int count, DataReader& src, bool skip_drawing)
{
if (!count)
return true;
@ -140,13 +140,13 @@ bool RunVertices(int vtx_attr_group, int primitive, int count, size_t buf_size,
VertexLoader* loader = RefreshLoader(vtx_attr_group, state);
size_t size = count * loader->GetVertexSize();
if (buf_size < size)
if (src.size() < size)
return false;
if (skip_drawing || (bpmem.genMode.cullmode == GenMode::CULL_ALL && primitive < 5))
{
// if cull mode is CULL_ALL, ignore triangles and quads
DataSkip((u32)size);
src.Skip(size);
return true;
}
@ -160,7 +160,10 @@ bool RunVertices(int vtx_attr_group, int primitive, int count, size_t buf_size,
VertexManager::PrepareForAdditionalData(primitive, count,
loader->GetNativeVertexDeclaration().stride);
src.WritePointer(&g_video_buffer_read_ptr);
loader->RunVertices(state->vtx_attr[vtx_attr_group], primitive, count);
src = g_video_buffer_read_ptr;
IndexGenerator::AddIndices(primitive, count);

3
Source/Core/VideoCommon/VertexLoaderManager.h
View file

@ -7,6 +7,7 @@
#include <string>
#include "Common/CommonTypes.h"
#include "VideoCommon/DataReader.h"
#include "VideoCommon/NativeVertexFormat.h"
namespace VertexLoaderManager
@ -18,7 +19,7 @@ namespace VertexLoaderManager
int GetVertexSize(int vtx_attr_group, bool preprocess);
// Returns false if buf_size is insufficient.
bool RunVertices(int vtx_attr_group, int primitive, int count, size_t buf_size, bool skip_drawing = false);
bool RunVertices(int vtx_attr_group, int primitive, int count, DataReader& src, bool skip_drawing = false);
// For debugging
void AppendListToString(std::string *dest);

3
Source/Core/VideoCommon/XFMemory.h
View file

@ -6,6 +6,7 @@
#include "Common/CommonTypes.h"
#include "VideoCommon/CPMemory.h"
#include "VideoCommon/DataReader.h"
// Lighting
@ -273,6 +274,6 @@ struct XFMemory
extern XFMemory xfmem;
void LoadXFReg(u32 transferSize, u32 address);
void LoadXFReg(u32 transferSize, u32 address, DataReader src);
void LoadIndexedXF(u32 val, int array);
void PreprocessIndexedXF(u32 val, int refarray);

12
Source/Core/VideoCommon/XFStructs.cpp
View file

@ -19,14 +19,14 @@ static void XFMemWritten(u32 transferSize, u32 baseAddress)
VertexShaderManager::InvalidateXFRange(baseAddress, baseAddress + transferSize);
}
static void XFRegWritten(int transferSize, u32 baseAddress)
static void XFRegWritten(int transferSize, u32 baseAddress, DataReader src)
{
u32 address = baseAddress;
u32 dataIndex = 0;
while (transferSize > 0 && address < 0x1058)
{
u32 newValue = DataPeek<u32>(dataIndex * sizeof(u32));
u32 newValue = src.Peek<u32>(dataIndex * sizeof(u32));
u32 nextAddress = address + 1;
switch (address)
@ -193,7 +193,7 @@ static void XFRegWritten(int transferSize, u32 baseAddress)
}
}
void LoadXFReg(u32 transferSize, u32 baseAddress)
void LoadXFReg(u32 transferSize, u32 baseAddress, DataReader src)
{
// do not allow writes past registers
if (baseAddress + transferSize > 0x1058)
@ -229,17 +229,17 @@ void LoadXFReg(u32 transferSize, u32 baseAddress)
XFMemWritten(xfMemTransferSize, xfMemBase);
for (u32 i = 0; i < xfMemTransferSize; i++)
{
((u32*)&xfmem)[xfMemBase + i] = DataRead<u32>();
((u32*)&xfmem)[xfMemBase + i] = src.Read<u32>();
}
}
// write to XF regs
if (transferSize > 0)
{
XFRegWritten(transferSize, baseAddress);
XFRegWritten(transferSize, baseAddress, src);
for (u32 i = 0; i < transferSize; i++)
{
((u32*)&xfmem)[baseAddress + i] = DataRead<u32>();
((u32*)&xfmem)[baseAddress + i] = src.Read<u32>();
}
}
}