mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-18 06:38:42 +02:00
* Keep track mapped buffers with fixed offsets * Started rewriting the memory manager * Initial support for MapPhysicalMemory and UnmapPhysicalMemory, other tweaks * MapPhysicalMemory/UnmapPhysicalMemory support, other tweaks * Rebased * Optimize the map/unmap physical memory svcs * Integrate shared font support * Fix address space reserve alignment * Some fixes related to gpu memory mapping * Some cleanup * Only try uploading const buffers that are really used * Check if memory region is contiguous * Rebased * Add missing count increment on IsRegionModified * Check for reads/writes outside of the address space, optimize translation with a tail call
67 lines
1.8 KiB
C#
67 lines
1.8 KiB
C#
using System;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace ChocolArm64.Memory
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{
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public static class AMemoryHelper
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{
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public static void FillWithZeros(AMemory Memory, long Position, int Size)
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{
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int Size8 = Size & ~(8 - 1);
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for (int Offs = 0; Offs < Size8; Offs += 8)
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{
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Memory.WriteInt64(Position + Offs, 0);
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}
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for (int Offs = Size8; Offs < (Size - Size8); Offs++)
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{
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Memory.WriteByte(Position + Offs, 0);
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}
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}
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public unsafe static T Read<T>(AMemory Memory, long Position) where T : struct
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{
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long Size = Marshal.SizeOf<T>();
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Memory.EnsureRangeIsValid(Position, Size);
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IntPtr Ptr = (IntPtr)Memory.Translate(Position);
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return Marshal.PtrToStructure<T>(Ptr);
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}
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public unsafe static void Write<T>(AMemory Memory, long Position, T Value) where T : struct
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{
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long Size = Marshal.SizeOf<T>();
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Memory.EnsureRangeIsValid(Position, Size);
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IntPtr Ptr = (IntPtr)Memory.TranslateWrite(Position);
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Marshal.StructureToPtr<T>(Value, Ptr, false);
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}
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public static string ReadAsciiString(AMemory Memory, long Position, long MaxSize = -1)
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{
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using (MemoryStream MS = new MemoryStream())
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{
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for (long Offs = 0; Offs < MaxSize || MaxSize == -1; Offs++)
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{
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byte Value = (byte)Memory.ReadByte(Position + Offs);
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if (Value == 0)
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{
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break;
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}
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MS.WriteByte(Value);
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}
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return Encoding.ASCII.GetString(MS.ToArray());
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}
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}
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}
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} |