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295 lines
7.0 KiB
C++
295 lines
7.0 KiB
C++
// Copyright 2011 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "Core/FifoPlayer/FifoAnalyzer.h"
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#include <numeric>
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#include "Common/Assert.h"
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#include "Common/MsgHandler.h"
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#include "Common/Swap.h"
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#include "Core/FifoPlayer/FifoRecordAnalyzer.h"
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#include "VideoCommon/OpcodeDecoding.h"
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#include "VideoCommon/VertexLoader.h"
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#include "VideoCommon/VertexLoader_Normal.h"
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#include "VideoCommon/VertexLoader_Position.h"
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#include "VideoCommon/VertexLoader_TextCoord.h"
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namespace FifoAnalyzer
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{
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namespace
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{
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u8 ReadFifo8(const u8*& data)
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{
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const u8 value = data[0];
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data += 1;
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return value;
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}
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u16 ReadFifo16(const u8*& data)
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{
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const u16 value = Common::swap16(data);
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data += 2;
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return value;
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}
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u32 ReadFifo32(const u8*& data)
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{
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const u32 value = Common::swap32(data);
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data += 4;
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return value;
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}
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std::array<int, 21> CalculateVertexElementSizes(int vatIndex, const CPMemory& cpMem)
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{
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const TVtxDesc& vtxDesc = cpMem.vtxDesc;
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const VAT& vtxAttr = cpMem.vtxAttr[vatIndex];
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// Colors
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const std::array<ColorFormat, 2> colComp{
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vtxAttr.g0.Color0Comp,
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vtxAttr.g0.Color1Comp,
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};
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const std::array<TexComponentCount, 8> tcElements{
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vtxAttr.g0.Tex0CoordElements, vtxAttr.g1.Tex1CoordElements, vtxAttr.g1.Tex2CoordElements,
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vtxAttr.g1.Tex3CoordElements, vtxAttr.g1.Tex4CoordElements, vtxAttr.g2.Tex5CoordElements,
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vtxAttr.g2.Tex6CoordElements, vtxAttr.g2.Tex7CoordElements,
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};
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const std::array<ComponentFormat, 8> tcFormat{
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vtxAttr.g0.Tex0CoordFormat, vtxAttr.g1.Tex1CoordFormat, vtxAttr.g1.Tex2CoordFormat,
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vtxAttr.g1.Tex3CoordFormat, vtxAttr.g1.Tex4CoordFormat, vtxAttr.g2.Tex5CoordFormat,
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vtxAttr.g2.Tex6CoordFormat, vtxAttr.g2.Tex7CoordFormat,
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};
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std::array<int, 21> sizes{};
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// Add position and texture matrix indices
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sizes[0] = vtxDesc.low.PosMatIdx;
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for (size_t i = 0; i < vtxDesc.low.TexMatIdx.Size(); ++i)
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{
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sizes[i + 1] = vtxDesc.low.TexMatIdx[i];
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}
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// Position
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sizes[9] = VertexLoader_Position::GetSize(vtxDesc.low.Position, vtxAttr.g0.PosFormat,
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vtxAttr.g0.PosElements);
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// Normals
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if (vtxDesc.low.Normal != VertexComponentFormat::NotPresent)
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{
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sizes[10] = VertexLoader_Normal::GetSize(vtxDesc.low.Normal, vtxAttr.g0.NormalFormat,
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vtxAttr.g0.NormalElements, vtxAttr.g0.NormalIndex3);
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}
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else
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{
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sizes[10] = 0;
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}
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// Colors
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for (size_t i = 0; i < vtxDesc.low.Color.Size(); i++)
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{
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int size = 0;
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switch (vtxDesc.low.Color[i])
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{
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case VertexComponentFormat::NotPresent:
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break;
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case VertexComponentFormat::Direct:
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switch (colComp[i])
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{
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case ColorFormat::RGB565:
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size = 2;
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break;
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case ColorFormat::RGB888:
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size = 3;
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break;
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case ColorFormat::RGB888x:
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size = 4;
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break;
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case ColorFormat::RGBA4444:
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size = 2;
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break;
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case ColorFormat::RGBA6666:
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size = 3;
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break;
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case ColorFormat::RGBA8888:
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size = 4;
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break;
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default:
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ASSERT(0);
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break;
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}
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break;
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case VertexComponentFormat::Index8:
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size = 1;
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break;
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case VertexComponentFormat::Index16:
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size = 2;
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break;
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}
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sizes[11 + i] = size;
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}
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// Texture coordinates
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for (size_t i = 0; i < tcFormat.size(); i++)
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{
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sizes[13 + i] =
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VertexLoader_TextCoord::GetSize(vtxDesc.high.TexCoord[i], tcFormat[i], tcElements[i]);
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}
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return sizes;
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}
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} // Anonymous namespace
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bool s_DrawingObject;
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FifoAnalyzer::CPMemory s_CpMem;
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u32 AnalyzeCommand(const u8* data, DecodeMode mode)
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{
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const u8* dataStart = data;
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int cmd = ReadFifo8(data);
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switch (cmd)
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{
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case OpcodeDecoder::GX_NOP:
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case OpcodeDecoder::GX_CMD_UNKNOWN_METRICS:
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case OpcodeDecoder::GX_CMD_INVL_VC:
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break;
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case OpcodeDecoder::GX_LOAD_CP_REG:
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{
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s_DrawingObject = false;
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u32 cmd2 = ReadFifo8(data);
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u32 value = ReadFifo32(data);
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LoadCPReg(cmd2, value, s_CpMem);
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break;
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}
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case OpcodeDecoder::GX_LOAD_XF_REG:
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{
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s_DrawingObject = false;
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u32 cmd2 = ReadFifo32(data);
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u8 streamSize = ((cmd2 >> 16) & 15) + 1;
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data += streamSize * 4;
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break;
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}
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case OpcodeDecoder::GX_LOAD_INDX_A:
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case OpcodeDecoder::GX_LOAD_INDX_B:
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case OpcodeDecoder::GX_LOAD_INDX_C:
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case OpcodeDecoder::GX_LOAD_INDX_D:
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{
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s_DrawingObject = false;
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int array = 0xc + (cmd - OpcodeDecoder::GX_LOAD_INDX_A) / 8;
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u32 value = ReadFifo32(data);
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if (mode == DecodeMode::Record)
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FifoRecordAnalyzer::ProcessLoadIndexedXf(value, array);
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break;
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}
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case OpcodeDecoder::GX_CMD_CALL_DL:
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// The recorder should have expanded display lists into the fifo stream and skipped the call to
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// start them
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// That is done to make it easier to track where memory is updated
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ASSERT(false);
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data += 8;
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break;
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case OpcodeDecoder::GX_LOAD_BP_REG:
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{
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s_DrawingObject = false;
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ReadFifo32(data);
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break;
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}
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default:
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if (cmd & 0x80)
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{
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s_DrawingObject = true;
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const std::array<int, 21> sizes =
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CalculateVertexElementSizes(cmd & OpcodeDecoder::GX_VAT_MASK, s_CpMem);
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// Determine offset of each element that might be a vertex array
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// The first 9 elements are never vertex arrays so we just accumulate their sizes.
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int offset = std::accumulate(sizes.begin(), sizes.begin() + 9, 0u);
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std::array<int, NUM_VERTEX_COMPONENT_ARRAYS> offsets;
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for (size_t i = 0; i < offsets.size(); ++i)
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{
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offsets[i] = offset;
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offset += sizes[i + 9];
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}
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const int vertexSize = offset;
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const int numVertices = ReadFifo16(data);
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if (mode == DecodeMode::Record && numVertices > 0)
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{
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for (size_t i = 0; i < offsets.size(); ++i)
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{
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FifoRecordAnalyzer::WriteVertexArray(static_cast<int>(i), data + offsets[i], vertexSize,
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numVertices);
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}
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}
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data += numVertices * vertexSize;
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}
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else
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{
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PanicAlertFmt("FifoPlayer: Unknown Opcode ({:#x}).\n", cmd);
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return 0;
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}
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break;
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}
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return (u32)(data - dataStart);
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}
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void LoadCPReg(u32 subCmd, u32 value, CPMemory& cpMem)
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{
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switch (subCmd & CP_COMMAND_MASK)
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{
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case VCD_LO:
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cpMem.vtxDesc.low.Hex = value;
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break;
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case VCD_HI:
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cpMem.vtxDesc.high.Hex = value;
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break;
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case CP_VAT_REG_A:
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ASSERT(subCmd - CP_VAT_REG_A < CP_NUM_VAT_REG);
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cpMem.vtxAttr[subCmd & CP_VAT_MASK].g0.Hex = value;
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break;
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case CP_VAT_REG_B:
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ASSERT(subCmd - CP_VAT_REG_B < CP_NUM_VAT_REG);
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cpMem.vtxAttr[subCmd & CP_VAT_MASK].g1.Hex = value;
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break;
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case CP_VAT_REG_C:
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ASSERT(subCmd - CP_VAT_REG_C < CP_NUM_VAT_REG);
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cpMem.vtxAttr[subCmd & CP_VAT_MASK].g2.Hex = value;
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break;
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case ARRAY_BASE:
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cpMem.arrayBases[subCmd & CP_ARRAY_MASK] = value;
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break;
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case ARRAY_STRIDE:
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cpMem.arrayStrides[subCmd & CP_ARRAY_MASK] = value & 0xFF;
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break;
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}
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}
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} // namespace FifoAnalyzer
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