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Texture/Vertex/Index data cache (#132)

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* Initial implementation of the texture cache

* Cache vertex and index data aswell, some cleanup

* Improve handling of the cache by storing cached ranges on a list for each page

* Delete old data from the caches automatically, ensure that the cache is cleaned when the mapping/size changes, and some general cleanup
This commit is contained in:
gdkchan 2018-06-08 21:15:56 -03:00 • committed by GitHub
parent 6fe51f9705
commit 231fae1a4c
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GPG key ID: 4AEE18F83AFDEB23
28 changed files with 837 additions and 819 deletions
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63
ChocolArm64/Memory/AMemory.cs
View file

@ -54,7 +54,14 @@ namespace ChocolArm64.Memory
ExAddrs = new HashSet<long>();
Ram = Marshal.AllocHGlobal((IntPtr)AMemoryMgr.RamSize + AMemoryMgr.PageSize);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
Ram = AMemoryWin32.Allocate((IntPtr)AMemoryMgr.RamSize + AMemoryMgr.PageSize);
}
else
{
Ram = Marshal.AllocHGlobal((IntPtr)AMemoryMgr.RamSize + AMemoryMgr.PageSize);
}
RamPtr = (byte*)Ram;
}
@ -141,6 +148,51 @@ namespace ChocolArm64.Memory
}
}
public long GetHostPageSize()
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return AMemoryMgr.PageSize;
}
IntPtr MemAddress = new IntPtr(RamPtr);
IntPtr MemSize = new IntPtr(AMemoryMgr.RamSize);
long PageSize = AMemoryWin32.IsRegionModified(MemAddress, MemSize, Reset: false);
if (PageSize < 1)
{
throw new InvalidOperationException();
}
return PageSize;
}
public bool IsRegionModified(long Position, long Size)
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return true;
}
long EndPos = Position + Size;
if ((ulong)EndPos < (ulong)Position)
{
return false;
}
if ((ulong)EndPos > AMemoryMgr.RamSize)
{
return false;
}
IntPtr MemAddress = new IntPtr(RamPtr + Position);
IntPtr MemSize = new IntPtr(Size);
return AMemoryWin32.IsRegionModified(MemAddress, MemSize, Reset: true) != 0;
}
public sbyte ReadSByte(long Position)
{
return (sbyte)ReadByte(Position);
@ -640,7 +692,14 @@ namespace ChocolArm64.Memory
{
if (Ram != IntPtr.Zero)
{
Marshal.FreeHGlobal(Ram);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
AMemoryWin32.Free(Ram);
}
else
{
Marshal.FreeHGlobal(Ram);
}
Ram = IntPtr.Zero;
}