Ryujinx/Ryujinx.Common
riperiperi bf77d1cab9
GPU: Pass SpanOrArray for Texture SetData to avoid copy (#3745)
* GPU: Pass SpanOrArray for Texture SetData to avoid copy

Texture data is often converted before upload, meaning that an array was allocated to perform the conversion into. However, the backend SetData methods were being passed a Span of that data, and the Multithreaded layer does `ToArray()` on it so that it can be stored for later! This method can't extract the original array, so it creates a copy.

This PR changes the type passed for textures to a new ref struct called SpanOrArray, which is backed by either a ReadOnlySpan or an array. The benefit here is that we can have a ToArray method that doesn't copy if it is originally backed by an array.

This will also avoid a copy when running the ASTC decoder.

On NieR this was taking 38% of texture upload time, which it does a _lot_ of when you move between areas, so there should be a 1.6x performance boost when strictly uploading textures. No doubt this will also improve texture streaming performance in UE4 games, and maybe a small reduction with video playback.

From the numbers, it's probably possible to improve the upload rate by a further 1.6x by performing layout conversion on GPU. I'm not sure if we could improve it further than that - multithreading conversion on CPU would probably result in memory bottleneck.

This doesn't extend to buffers, since we don't convert their data on the GPU emulator side.

* Remove implicit cast to array.
2022-10-08 12:04:47 -03:00
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Collections Make RBTree node fields internal again 2022-09-10 16:23:49 +02:00
Configuration Volume Hotkeys (#3500) 2022-10-02 09:38:37 +00:00
Extensions Use Enum and Delegate.CreateDelegate generic overloads (#3111) 2022-02-13 10:50:07 -03:00
GraphicsDriver Removed unused usings. (#3593) 2022-08-18 18:04:54 +02:00
Logging fatal: Implement Service (#3573) 2022-10-02 10:30:46 +02:00
Memory GPU: Pass SpanOrArray for Texture SetData to avoid copy (#3745) 2022-10-08 12:04:47 -03:00
Pools Add a Multithreading layer for the GAL, multi-thread shader compilation at runtime (#2501) 2021-08-27 00:31:29 +02:00
System Removed unused usings. (#3593) 2022-08-18 18:04:54 +02:00
SystemInfo Removed unused usings. (#3593) 2022-08-18 18:04:54 +02:00
Utilities Removed unused usings. (#3593) 2022-08-18 18:04:54 +02:00
AsyncWorkQueue.cs New NVDEC and VIC implementation (#1384) 2020-07-12 05:07:01 +02:00
Hash128.cs Add support for HLE macros and accelerate MultiDrawElementsIndirectCount #2 (#2557) 2021-08-26 23:50:28 +02:00
PerformanceCounter.cs Rewrite scheduler context switch code (#1786) 2020-12-09 19:20:05 -03:00
ReactiveObject.cs ReactiveObject: Handle case when oldValue is null (#3268) 2022-04-15 12:58:27 +02:00
ReferenceEqualityComparer.cs Only enumerate cached textures that are modified when flushing. (#918) 2020-02-07 08:49:26 +11:00
ReleaseInformations.cs Preparation for initial Flatpack and FlatHub integration (#3173) 2022-03-04 18:03:16 +01:00
Ryujinx.Common.csproj infra: Migrate to .NET 6 (#2829) 2021-11-28 21:24:17 +01:00
XXHash128.cs Use ReadOnlySpan<byte> compiler optimization for static data (#3130) 2022-02-17 21:38:50 +01:00