From 4d02a2d2c0451b4de1f6de3bbce54c457cacebe2 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Sun, 12 Jul 2020 00:07:01 -0300
Subject: New NVDEC and VIC implementation (#1384)
* Initial NVDEC and VIC implementation
* Update FFmpeg.AutoGen to 4.3.0
* Add nvdec dependencies for Windows
* Unify some VP9 structures
* Rename VP9 structure fields
* Improvements to Video API
* XML docs for Common.Memory
* Remove now unused or redundant overloads from MemoryAccessor
* NVDEC UV surface read/write scalar paths
* Add FIXME comments about hacky things/stuff that will need to be fixed in the future
* Cleaned up VP9 memory allocation
* Remove some debug logs
* Rename some VP9 structs
* Remove unused struct
* No need to compile Ryujinx.Graphics.Host1x with unsafe anymore
* Name AsyncWorkQueue threads to make debugging easier
* Make Vp9PictureInfo a ref struct
* LayoutConverter no longer needs the depth argument (broken by rebase)
* Pooling of VP9 buffers, plus fix a memory leak on VP9
* Really wish VS could rename projects properly...
* Address feedback
* Remove using
* Catch OperationCanceledException
* Add licensing informations
* Add THIRDPARTY.md to release too
Co-authored-by: Thog <me@thog.eu>
---
Ryujinx.Cpu/MemoryManager.cs | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
(limited to 'Ryujinx.Cpu/MemoryManager.cs')
diff --git a/Ryujinx.Cpu/MemoryManager.cs b/Ryujinx.Cpu/MemoryManager.cs
index 001c41f8..211a8c0d 100644
--- a/Ryujinx.Cpu/MemoryManager.cs
+++ b/Ryujinx.Cpu/MemoryManager.cs
@@ -193,6 +193,38 @@ namespace Ryujinx.Cpu
}
}
+ /// <summary>
+ /// Gets a region of memory that can be written to.
+ /// </summary>
+ /// <remarks>
+ /// If the requested region is not contiguous in physical memory,
+ /// this will perform an allocation, and flush the data (writing it
+ /// back to guest memory) on disposal.
+ /// </remarks>
+ /// <param name="va">Virtual address of the data</param>
+ /// <param name="size">Size of the data</param>
+ /// <returns>A writable region of memory containing the data</returns>
+ public WritableRegion GetWritableRegion(ulong va, int size)
+ {
+ if (size == 0)
+ {
+ return new WritableRegion(null, va, Memory<byte>.Empty);
+ }
+
+ if (IsContiguous(va, size))
+ {
+ return new WritableRegion(null, va, _backingMemory.GetMemory(GetPhysicalAddressInternal(va), size));
+ }
+ else
+ {
+ Memory<byte> memory = new byte[size];
+
+ GetSpan(va, size).CopyTo(memory.Span);
+
+ return new WritableRegion(this, va, memory);
+ }
+ }
+
/// <summary>
/// Gets a reference for the given type at the specified virtual memory address.
/// </summary>
--
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