Ryujinx/Ryujinx.Graphics.Gpu/Shader/Cache/CacheHelper.cs
2020-12-02 00:13:27 +01:00

500 lines
21 KiB
C#

using Ryujinx.Common;
using Ryujinx.Common.Configuration;
using Ryujinx.Common.Logging;
using Ryujinx.Graphics.GAL;
using Ryujinx.Graphics.Gpu.Memory;
using Ryujinx.Graphics.Gpu.Shader.Cache.Definition;
using Ryujinx.Graphics.Shader;
using Ryujinx.Graphics.Shader.Translation;
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace Ryujinx.Graphics.Gpu.Shader.Cache
{
/// <summary>
/// Helper to manipulate the disk shader cache.
/// </summary>
static class CacheHelper
{
/// <summary>
/// Try to read the manifest header from a given file path.
/// </summary>
/// <param name="manifestPath">The path to the manifest file</param>
/// <param name="header">The manifest header read</param>
/// <returns>Return true if the manifest header was read</returns>
public static bool TryReadManifestHeader(string manifestPath, out CacheManifestHeader header)
{
header = default;
if (File.Exists(manifestPath))
{
Memory<byte> rawManifest = File.ReadAllBytes(manifestPath);
if (MemoryMarshal.TryRead(rawManifest.Span, out header))
{
return true;
}
}
return false;
}
/// <summary>
/// Try to read the manifest from a given file path.
/// </summary>
/// <param name="manifestPath">The path to the manifest file</param>
/// <param name="graphicsApi">The graphics api used by the cache</param>
/// <param name="hashType">The hash type of the cache</param>
/// <param name="header">The manifest header read</param>
/// <param name="entries">The entries read from the cache manifest</param>
/// <returns>Return true if the manifest was read</returns>
public static bool TryReadManifestFile(string manifestPath, CacheGraphicsApi graphicsApi, CacheHashType hashType, out CacheManifestHeader header, out HashSet<Hash128> entries)
{
header = default;
entries = new HashSet<Hash128>();
if (File.Exists(manifestPath))
{
Memory<byte> rawManifest = File.ReadAllBytes(manifestPath);
if (MemoryMarshal.TryRead(rawManifest.Span, out header))
{
Memory<byte> hashTableRaw = rawManifest.Slice(Unsafe.SizeOf<CacheManifestHeader>());
bool isValid = header.IsValid(graphicsApi, hashType, hashTableRaw.Span);
if (isValid)
{
ReadOnlySpan<Hash128> hashTable = MemoryMarshal.Cast<byte, Hash128>(hashTableRaw.Span);
foreach (Hash128 hash in hashTable)
{
entries.Add(hash);
}
}
return isValid;
}
}
return false;
}
/// <summary>
/// Compute a cache manifest from runtime data.
/// </summary>
/// <param name="version">The version of the cache</param>
/// <param name="graphicsApi">The graphics api used by the cache</param>
/// <param name="hashType">The hash type of the cache</param>
/// <param name="entries">The entries in the cache</param>
/// <returns>The cache manifest from runtime data</returns>
public static byte[] ComputeManifest(ulong version, CacheGraphicsApi graphicsApi, CacheHashType hashType, HashSet<Hash128> entries)
{
if (hashType != CacheHashType.XxHash128)
{
throw new NotImplementedException($"{hashType}");
}
CacheManifestHeader manifestHeader = new CacheManifestHeader(version, graphicsApi, hashType);
byte[] data = new byte[Unsafe.SizeOf<CacheManifestHeader>() + entries.Count * Unsafe.SizeOf<Hash128>()];
// CacheManifestHeader has the same size as a Hash128.
Span<Hash128> dataSpan = MemoryMarshal.Cast<byte, Hash128>(data.AsSpan()).Slice(1);
int i = 0;
foreach (Hash128 hash in entries)
{
dataSpan[i++] = hash;
}
manifestHeader.UpdateChecksum(data.AsSpan().Slice(Unsafe.SizeOf<CacheManifestHeader>()));
MemoryMarshal.Write(data, ref manifestHeader);
return data;
}
/// <summary>
/// Get the base directory of the shader cache for a given title id.
/// </summary>
/// <param name="titleId">The title id of the target application</param>
/// <returns>The base directory of the shader cache for a given title id</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string GetBaseCacheDirectory(string titleId) => Path.Combine(AppDataManager.GamesDirPath, titleId, "cache", "shader");
/// <summary>
/// Get the temp path to the cache data directory.
/// </summary>
/// <param name="cacheDirectory">The cache directory</param>
/// <returns>The temp path to the cache data directory</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string GetCacheTempDataPath(string cacheDirectory) => Path.Combine(cacheDirectory, "temp");
/// <summary>
/// The path to the cache archive file.
/// </summary>
/// <param name="cacheDirectory">The cache directory</param>
/// <returns>The path to the cache archive file</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string GetArchivePath(string cacheDirectory) => Path.Combine(cacheDirectory, "cache.zip");
/// <summary>
/// The path to the cache manifest file.
/// </summary>
/// <param name="cacheDirectory">The cache directory</param>
/// <returns>The path to the cache manifest file</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string GetManifestPath(string cacheDirectory) => Path.Combine(cacheDirectory, "cache.info");
/// <summary>
/// Create a new temp path to the given cached file via its hash.
/// </summary>
/// <param name="cacheDirectory">The cache directory</param>
/// <param name="key">The hash of the cached data</param>
/// <returns>New path to the given cached file</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string GenCacheTempFilePath(string cacheDirectory, Hash128 key) => Path.Combine(GetCacheTempDataPath(cacheDirectory), key.ToString());
/// <summary>
/// Generate the path to the cache directory.
/// </summary>
/// <param name="baseCacheDirectory">The base of the cache directory</param>
/// <param name="graphicsApi">The graphics api in use</param>
/// <param name="shaderProvider">The name of the shader provider in use</param>
/// <param name="cacheName">The name of the cache</param>
/// <returns>The path to the cache directory</returns>
public static string GenerateCachePath(string baseCacheDirectory, CacheGraphicsApi graphicsApi, string shaderProvider, string cacheName)
{
string graphicsApiName = graphicsApi switch
{
CacheGraphicsApi.OpenGL => "opengl",
CacheGraphicsApi.OpenGLES => "opengles",
CacheGraphicsApi.Vulkan => "vulkan",
CacheGraphicsApi.DirectX => "directx",
CacheGraphicsApi.Metal => "metal",
CacheGraphicsApi.Guest => "guest",
_ => throw new NotImplementedException(graphicsApi.ToString()),
};
return Path.Combine(baseCacheDirectory, graphicsApiName, shaderProvider, cacheName);
}
/// <summary>
/// Read a cached file with the given hash that is present in the archive.
/// </summary>
/// <param name="archive">The archive in use</param>
/// <param name="entry">The given hash</param>
/// <returns>The cached file if present or null</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static byte[] ReadFromArchive(ZipArchive archive, Hash128 entry)
{
if (archive != null)
{
ZipArchiveEntry archiveEntry = archive.GetEntry($"{entry}");
if (archiveEntry != null)
{
try
{
byte[] result = new byte[archiveEntry.Length];
using (Stream archiveStream = archiveEntry.Open())
{
archiveStream.Read(result);
return result;
}
}
catch (Exception e)
{
Logger.Error?.Print(LogClass.Gpu, $"Cannot load cache file {entry} from archive");
Logger.Error?.Print(LogClass.Gpu, e.ToString());
}
}
}
return null;
}
/// <summary>
/// Read a cached file with the given hash that is not present in the archive.
/// </summary>
/// <param name="cacheDirectory">The cache directory</param>
/// <param name="entry">The given hash</param>
/// <returns>The cached file if present or null</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static byte[] ReadFromFile(string cacheDirectory, Hash128 entry)
{
string cacheTempFilePath = GenCacheTempFilePath(cacheDirectory, entry);
try
{
return File.ReadAllBytes(cacheTempFilePath);
}
catch (Exception e)
{
Logger.Error?.Print(LogClass.Gpu, $"Cannot load cache file at {cacheTempFilePath}");
Logger.Error?.Print(LogClass.Gpu, e.ToString());
}
return null;
}
/// <summary>
/// Compute the guest program code for usage while dumping to disk or hash.
/// </summary>
/// <param name="cachedShaderEntries">The guest shader entries to use</param>
/// <param name="tfd">The transform feedback descriptors</param>
/// <param name="forHashCompute">Used to determine if the guest program code is generated for hashing</param>
/// <returns>The guest program code for usage while dumping to disk or hash</returns>
private static byte[] ComputeGuestProgramCode(ReadOnlySpan<GuestShaderCacheEntry> cachedShaderEntries, TransformFeedbackDescriptor[] tfd, bool forHashCompute = false)
{
using (MemoryStream stream = new MemoryStream())
{
BinaryWriter writer = new BinaryWriter(stream);
foreach (GuestShaderCacheEntry cachedShaderEntry in cachedShaderEntries)
{
if (cachedShaderEntry != null)
{
// Code (and Code A if present)
stream.Write(cachedShaderEntry.Code);
if (forHashCompute)
{
// Guest GPU accessor header (only write this for hashes, already present in the header for dumps)
writer.WriteStruct(cachedShaderEntry.Header.GpuAccessorHeader);
}
// Texture descriptors
foreach (GuestTextureDescriptor textureDescriptor in cachedShaderEntry.TextureDescriptors.Values)
{
writer.WriteStruct(textureDescriptor);
}
}
}
// Transformation feedback
if (tfd != null)
{
foreach (TransformFeedbackDescriptor transform in tfd)
{
writer.WriteStruct(new GuestShaderCacheTransformFeedbackHeader(transform.BufferIndex, transform.Stride, transform.VaryingLocations.Length));
writer.Write(transform.VaryingLocations);
}
}
return stream.ToArray();
}
}
/// <summary>
/// Compute a guest hash from shader entries.
/// </summary>
/// <param name="cachedShaderEntries">The guest shader entries to use</param>
/// <param name="tfd">The optional transform feedback descriptors</param>
/// <returns>A guest hash from shader entries</returns>
public static Hash128 ComputeGuestHashFromCache(ReadOnlySpan<GuestShaderCacheEntry> cachedShaderEntries, TransformFeedbackDescriptor[] tfd = null)
{
return XXHash128.ComputeHash(ComputeGuestProgramCode(cachedShaderEntries, tfd, true));
}
/// <summary>
/// Read transform feedback descriptors from guest.
/// </summary>
/// <param name="data">The raw guest transform feedback descriptors</param>
/// <param name="header">The guest shader program header</param>
/// <returns>The transform feedback descriptors read from guest</returns>
public static TransformFeedbackDescriptor[] ReadTransformationFeedbackInformations(ref ReadOnlySpan<byte> data, GuestShaderCacheHeader header)
{
if (header.TransformFeedbackCount != 0)
{
TransformFeedbackDescriptor[] result = new TransformFeedbackDescriptor[header.TransformFeedbackCount];
for (int i = 0; i < result.Length; i++)
{
GuestShaderCacheTransformFeedbackHeader feedbackHeader = MemoryMarshal.Read<GuestShaderCacheTransformFeedbackHeader>(data);
result[i] = new TransformFeedbackDescriptor(feedbackHeader.BufferIndex, feedbackHeader.Stride, data.Slice(Unsafe.SizeOf<GuestShaderCacheTransformFeedbackHeader>(), feedbackHeader.VaryingLocationsLength).ToArray());
data = data.Slice(Unsafe.SizeOf<GuestShaderCacheTransformFeedbackHeader>() + feedbackHeader.VaryingLocationsLength);
}
return result;
}
return null;
}
/// <summary>
/// Builds gpu state flags using information from the given gpu accessor.
/// </summary>
/// <param name="gpuAccessor">The gpu accessor</param>
/// <returns>The gpu state flags</returns>
private static GuestGpuStateFlags GetGpuStateFlags(IGpuAccessor gpuAccessor)
{
GuestGpuStateFlags flags = 0;
if (gpuAccessor.QueryEarlyZForce())
{
flags |= GuestGpuStateFlags.EarlyZForce;
}
return flags;
}
/// <summary>
/// Create a new instance of <see cref="GuestGpuAccessorHeader"/> from an gpu accessor.
/// </summary>
/// <param name="gpuAccessor">The gpu accessor</param>
/// <returns>A new instance of <see cref="GuestGpuAccessorHeader"/></returns>
public static GuestGpuAccessorHeader CreateGuestGpuAccessorCache(IGpuAccessor gpuAccessor)
{
return new GuestGpuAccessorHeader
{
ComputeLocalSizeX = gpuAccessor.QueryComputeLocalSizeX(),
ComputeLocalSizeY = gpuAccessor.QueryComputeLocalSizeY(),
ComputeLocalSizeZ = gpuAccessor.QueryComputeLocalSizeZ(),
ComputeLocalMemorySize = gpuAccessor.QueryComputeLocalMemorySize(),
ComputeSharedMemorySize = gpuAccessor.QueryComputeSharedMemorySize(),
PrimitiveTopology = gpuAccessor.QueryPrimitiveTopology(),
StateFlags = GetGpuStateFlags(gpuAccessor)
};
}
/// <summary>
/// Create guest shader cache entries from the runtime contexts.
/// </summary>
/// <param name="memoryManager">The GPU memory manager in use</param>
/// <param name="shaderContexts">The runtime contexts</param>
/// <returns>Guest shader cahe entries from the runtime contexts</returns>
public static GuestShaderCacheEntry[] CreateShaderCacheEntries(MemoryManager memoryManager, ReadOnlySpan<TranslatorContext> shaderContexts)
{
GuestShaderCacheEntry[] entries = new GuestShaderCacheEntry[shaderContexts.Length];
for (int i = 0; i < shaderContexts.Length; i++)
{
TranslatorContext context = shaderContexts[i];
if (context == null)
{
continue;
}
int sizeA = context.AddressA == 0 ? 0 : context.SizeA;
byte[] code = new byte[context.Size + sizeA];
memoryManager.GetSpan(context.Address, context.Size).CopyTo(code);
if (context.AddressA != 0)
{
memoryManager.GetSpan(context.AddressA, context.SizeA).CopyTo(code.AsSpan().Slice(context.Size, context.SizeA));
}
GuestGpuAccessorHeader gpuAccessorHeader = CreateGuestGpuAccessorCache(context.GpuAccessor);
if (context.GpuAccessor is GpuAccessor)
{
gpuAccessorHeader.TextureDescriptorCount = context.TextureHandlesForCache.Count;
}
GuestShaderCacheEntryHeader header = new GuestShaderCacheEntryHeader(context.Stage, context.Size, sizeA, gpuAccessorHeader);
GuestShaderCacheEntry entry = new GuestShaderCacheEntry(header, code);
if (context.GpuAccessor is GpuAccessor gpuAccessor)
{
foreach (int textureHandle in context.TextureHandlesForCache)
{
GuestTextureDescriptor textureDescriptor = ((Image.TextureDescriptor)gpuAccessor.GetTextureDescriptor(textureHandle)).ToCache();
textureDescriptor.Handle = (uint)textureHandle;
entry.TextureDescriptors.Add(textureHandle, textureDescriptor);
}
}
entries[i] = entry;
}
return entries;
}
/// <summary>
/// Create a guest shader program.
/// </summary>
/// <param name="shaderCacheEntries">The entries composing the guest program dump</param>
/// <param name="tfd">The transform feedback descriptors in use</param>
/// <returns>The resulting guest shader program</returns>
public static byte[] CreateGuestProgramDump(GuestShaderCacheEntry[] shaderCacheEntries, TransformFeedbackDescriptor[] tfd = null)
{
using (MemoryStream resultStream = new MemoryStream())
{
BinaryWriter resultStreamWriter = new BinaryWriter(resultStream);
byte transformFeedbackCount = 0;
if (tfd != null)
{
transformFeedbackCount = (byte)tfd.Length;
}
// Header
resultStreamWriter.WriteStruct(new GuestShaderCacheHeader((byte)shaderCacheEntries.Length, transformFeedbackCount));
// Write all entries header
foreach (GuestShaderCacheEntry entry in shaderCacheEntries)
{
if (entry == null)
{
resultStreamWriter.WriteStruct(new GuestShaderCacheEntryHeader());
}
else
{
resultStreamWriter.WriteStruct(entry.Header);
}
}
// Finally, write all program code and all transform feedback information.
resultStreamWriter.Write(ComputeGuestProgramCode(shaderCacheEntries, tfd));
return resultStream.ToArray();
}
}
/// <summary>
/// Save temporary files not in archive.
/// </summary>
/// <param name="baseCacheDirectory">The base of the cache directory</param>
/// <param name="archive">The archive to use</param>
/// <param name="entries">The entries in the cache</param>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void EnsureArchiveUpToDate(string baseCacheDirectory, ZipArchive archive, HashSet<Hash128> entries)
{
foreach (Hash128 hash in entries)
{
string cacheTempFilePath = GenCacheTempFilePath(baseCacheDirectory, hash);
if (File.Exists(cacheTempFilePath))
{
string cacheHash = $"{hash}";
ZipArchiveEntry entry = archive.GetEntry(cacheHash);
entry?.Delete();
archive.CreateEntryFromFile(cacheTempFilePath, cacheHash);
File.Delete(cacheTempFilePath);
}
}
}
}
}