Core/FifoAnalyzer: Use std::array where applicable

This lets us convert CalculateVertexElementSizes() from a function using
an out pointer into one that simply returns the array data as a return
value.

It also lets us dehardcode some values, as we can just query
std::array's size() member function instead.

Source/Core/Core/FifoPlayer/FifoAnalyzer.cpp

@@ -4,10 +4,10 @@
 
 #include "Core/FifoPlayer/FifoAnalyzer.h"
 
-#include <algorithm>
 #include <numeric>
 
 #include "Common/Assert.h"
+#include "Common/MsgHandler.h"
 #include "Common/Swap.h"
 
 #include "Core/FifoPlayer/FifoRecordAnalyzer.h"
@@ -43,24 +43,33 @@ u32 ReadFifo32(const u8*& data)
   return value;
 }
 
-void CalculateVertexElementSizes(int sizes[], int vatIndex, const CPMemory& cpMem)
+std::array<int, 21> CalculateVertexElementSizes(int vatIndex, const CPMemory& cpMem)
 {
   const TVtxDesc& vtxDesc = cpMem.vtxDesc;
   const VAT& vtxAttr = cpMem.vtxAttr[vatIndex];
 
   // Colors
-  const u64 colDesc[2] = {vtxDesc.Color0, vtxDesc.Color1};
-  const u32 colComp[2] = {vtxAttr.g0.Color0Comp, vtxAttr.g0.Color1Comp};
+  const std::array<u64, 2> colDesc{
+      vtxDesc.Color0,
+      vtxDesc.Color1,
+  };
+  const std::array<u32, 2> colComp{
+      vtxAttr.g0.Color0Comp,
+      vtxAttr.g0.Color1Comp,
+  };
 
-  const u32 tcElements[8] = {vtxAttr.g0.Tex0CoordElements, vtxAttr.g1.Tex1CoordElements,
-                             vtxAttr.g1.Tex2CoordElements, vtxAttr.g1.Tex3CoordElements,
-                             vtxAttr.g1.Tex4CoordElements, vtxAttr.g2.Tex5CoordElements,
-                             vtxAttr.g2.Tex6CoordElements, vtxAttr.g2.Tex7CoordElements};
+  const std::array<u32, 8> tcElements{
+      vtxAttr.g0.Tex0CoordElements, vtxAttr.g1.Tex1CoordElements, vtxAttr.g1.Tex2CoordElements,
+      vtxAttr.g1.Tex3CoordElements, vtxAttr.g1.Tex4CoordElements, vtxAttr.g2.Tex5CoordElements,
+      vtxAttr.g2.Tex6CoordElements, vtxAttr.g2.Tex7CoordElements,
+  };
+  const std::array<u32, 8> tcFormat{
+      vtxAttr.g0.Tex0CoordFormat, vtxAttr.g1.Tex1CoordFormat, vtxAttr.g1.Tex2CoordFormat,
+      vtxAttr.g1.Tex3CoordFormat, vtxAttr.g1.Tex4CoordFormat, vtxAttr.g2.Tex5CoordFormat,
+      vtxAttr.g2.Tex6CoordFormat, vtxAttr.g2.Tex7CoordFormat,
+  };
 
-  const u32 tcFormat[8] = {vtxAttr.g0.Tex0CoordFormat, vtxAttr.g1.Tex1CoordFormat,
-                           vtxAttr.g1.Tex2CoordFormat, vtxAttr.g1.Tex3CoordFormat,
-                           vtxAttr.g1.Tex4CoordFormat, vtxAttr.g2.Tex5CoordFormat,
-                           vtxAttr.g2.Tex6CoordFormat, vtxAttr.g2.Tex7CoordFormat};
+  std::array<int, 21> sizes{};
 
   // Add position and texture matrix indices
   u64 vtxDescHex = cpMem.vtxDesc.Hex;
@@ -86,7 +95,7 @@ void CalculateVertexElementSizes(int sizes[], int vatIndex, const CPMemory& cpMe
   }
 
   // Colors
-  for (int i = 0; i < 2; i++)
+  for (size_t i = 0; i < colDesc.size(); i++)
   {
     int size = 0;
 
@@ -133,11 +142,13 @@ void CalculateVertexElementSizes(int sizes[], int vatIndex, const CPMemory& cpMe
 
   // Texture coordinates
   vtxDescHex = vtxDesc.Hex >> 17;
-  for (int i = 0; i < 8; i++)
+  for (size_t i = 0; i < tcFormat.size(); i++)
   {
     sizes[13 + i] = VertexLoader_TextCoord::GetSize(vtxDescHex & 3, tcFormat[i], tcElements[i]);
     vtxDescHex >>= 2;
   }
+
+  return sizes;
 }
 }  // Anonymous namespace
 
@@ -213,27 +224,28 @@ u32 AnalyzeCommand(const u8* data, DecodeMode mode)
     {
       s_DrawingObject = true;
 
-      int sizes[21];
-      CalculateVertexElementSizes(sizes, cmd & OpcodeDecoder::GX_VAT_MASK, s_CpMem);
+      const std::array<int, 21> sizes =
+          CalculateVertexElementSizes(cmd & OpcodeDecoder::GX_VAT_MASK, s_CpMem);
 
       // Determine offset of each element that might be a vertex array
       // The first 9 elements are never vertex arrays so we just accumulate their sizes.
-      int offsets[12];
-      int offset = std::accumulate(&sizes[0], &sizes[9], 0u);
-      for (int i = 0; i < 12; ++i)
+      int offset = std::accumulate(sizes.begin(), sizes.begin() + 9, 0u);
+      std::array<int, 12> offsets;
+      for (size_t i = 0; i < offsets.size(); ++i)
       {
         offsets[i] = offset;
         offset += sizes[i + 9];
       }
 
-      int vertexSize = offset;
-      int numVertices = ReadFifo16(data);
+      const int vertexSize = offset;
+      const int numVertices = ReadFifo16(data);
 
       if (mode == DecodeMode::Record && numVertices > 0)
       {
-        for (int i = 0; i < 12; ++i)
+        for (size_t i = 0; i < offsets.size(); ++i)
         {
-          FifoRecordAnalyzer::WriteVertexArray(i, data + offsets[i], vertexSize, numVertices);
+          FifoRecordAnalyzer::WriteVertexArray(static_cast<int>(i), data + offsets[i], vertexSize,
+                                               numVertices);
         }
       }
 

Source/Core/Core/FifoPlayer/FifoAnalyzer.h

@@ -4,8 +4,9 @@
 
 #pragma once
 
-#include "Common/CommonTypes.h"
+#include <array>
 
+#include "Common/CommonTypes.h"
 #include "VideoCommon/CPMemory.h"
 
 namespace FifoAnalyzer
@@ -21,9 +22,9 @@ u32 AnalyzeCommand(const u8* data, DecodeMode mode);
 struct CPMemory
 {
   TVtxDesc vtxDesc;
-  VAT vtxAttr[8];
-  u32 arrayBases[16];
-  u32 arrayStrides[16];
+  std::array<VAT, 8> vtxAttr;
+  std::array<u32, 16> arrayBases;
+  std::array<u32, 16> arrayStrides;
 };
 
 void LoadCPReg(u32 subCmd, u32 value, CPMemory& cpMem);

Source/Core/Core/FifoPlayer/FifoRecordAnalyzer.cpp

@@ -5,7 +5,6 @@
 #include "Core/FifoPlayer/FifoRecordAnalyzer.h"
 
 #include <algorithm>
-#include <cstring>
 
 #include "Core/FifoPlayer/FifoAnalyzer.h"
 #include "Core/FifoPlayer/FifoRecorder.h"
@@ -22,8 +21,13 @@ void FifoRecordAnalyzer::Initialize(const u32* cpMem)
   for (int i = 0; i < 8; ++i)
     FifoAnalyzer::LoadCPReg(0x70 + i, *(cpMem + 0x70 + i), s_CpMem);
 
-  memcpy(s_CpMem.arrayBases, cpMem + 0xA0, 16 * 4);
-  memcpy(s_CpMem.arrayStrides, cpMem + 0xB0, 16 * 4);
+  const u32* const bases_start = cpMem + 0xA0;
+  const u32* const bases_end = bases_start + s_CpMem.arrayBases.size();
+  std::copy(bases_start, bases_end, s_CpMem.arrayBases.begin());
+
+  const u32* const strides_start = cpMem + 0xB0;
+  const u32* const strides_end = strides_start + s_CpMem.arrayStrides.size();
+  std::copy(strides_start, strides_end, s_CpMem.arrayStrides.begin());
 }
 
 void FifoRecordAnalyzer::ProcessLoadIndexedXf(u32 val, int array)