diff options
Diffstat (limited to 'src/Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs')
| -rw-r--r-- | src/Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs b/src/Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs index bd33383e..b976667c 100644 --- a/src/Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs +++ b/src/Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs @@ -8,6 +8,7 @@ using Ryujinx.Memory.Tracking; using System; using System.Collections.Generic; using System.Runtime.InteropServices; +using System.Linq; using System.Threading; namespace Ryujinx.Graphics.Gpu.Memory @@ -83,6 +84,34 @@ namespace Ryujinx.Graphics.Gpu.Memory } /// <summary> + /// Gets a host pointer for a given range of application memory. + /// If the memory region is not a single contiguous block, this method returns 0. + /// </summary> + /// <remarks> + /// Getting a host pointer is unsafe. It should be considered invalid immediately if the GPU memory is unmapped. + /// </remarks> + /// <param name="range">Ranges of physical memory where the target data is located</param> + /// <returns>Pointer to the range of memory</returns> + public nint GetHostPointer(MultiRange range) + { + if (range.Count == 1) + { + var singleRange = range.GetSubRange(0); + if (singleRange.Address != MemoryManager.PteUnmapped) + { + var regions = _cpuMemory.GetHostRegions(singleRange.Address, singleRange.Size); + + if (regions != null && regions.Count() == 1) + { + return (nint)regions.First().Address; + } + } + } + + return 0; + } + + /// <summary> /// Gets a span of data from the application process. /// </summary> /// <param name="address">Start address of the range</param> |