/// <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)
{
int startIndex = shaderContexts.Length > 1 ? 1 : 0;
GuestShaderCacheEntry[] entries = new GuestShaderCacheEntry[shaderContexts.Length - startIndex];
for (int i = startIndex; i < shaderContexts.Length; i++)
{
TranslatorContext context = shaderContexts[i];
if (context == null)
{
continue;
}
TranslatorContext translatorContext2 = i == 1 ? shaderContexts[0] : null;
int sizeA = translatorContext2 != null ? translatorContext2.Size : 0;
byte[] code = new byte[context.Size + sizeA];
memoryManager.GetSpan(context.Address, context.Size).CopyTo(code);
if (translatorContext2 != null)
{
memoryManager.GetSpan(translatorContext2.Address, sizeA).CopyTo(code.AsSpan().Slice(context.Size, 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, -1)).ToCache();
textureDescriptor.Handle = (uint)textureHandle;
entry.TextureDescriptors.Add(textureHandle, textureDescriptor);
}
}
entries[i - startIndex] = entry;
}
return(entries);
}
/// <summary>
/// Get the shader program information for use on the shader cache.
/// </summary>
/// <param name="tfd">The current transform feedback descriptors used</param>
/// <param name="shaderContexts">The shader translators context in use</param>
/// <param name="programCode">The resulting raw shader program code</param>
/// <param name="programCodeHash">The resulting raw shader program code hash</param>
/// <param name="entries">The resulting guest shader entries header</param>
private void GetProgramInformations(TransformFeedbackDescriptor[] tfd, ReadOnlySpan <TranslatorContext> shaderContexts, out byte[] programCode, out Hash128 programCodeHash, out GuestShaderCacheEntryHeader[] entries)
{
GuestShaderCacheEntryHeader ComputeStage(Stream stream, TranslatorContext context)
{
if (context == null)
{
return(new GuestShaderCacheEntryHeader());
}
ReadOnlySpan <byte> data = _context.MemoryManager.GetSpan(context.Address, context.Size);
stream.Write(data);
int size = data.Length;
int sizeA = 0;
if (context.AddressA != 0)
{
data = _context.MemoryManager.GetSpan(context.AddressA, context.SizeA);
sizeA = data.Length;
stream.Write(data);
}
GuestGpuAccessorHeader gpuAccessorHeader = WriteGuestGpuAccessorCache(stream, context);
return(new GuestShaderCacheEntryHeader(context.Stage, size, sizeA, gpuAccessorHeader));
}
entries = new GuestShaderCacheEntryHeader[shaderContexts.Length];
using (MemoryStream stream = new MemoryStream())
{
for (int i = 0; i < shaderContexts.Length; i++)
{
entries[i] = ComputeStage(stream, shaderContexts[i]);
}
WriteTransformationFeedbackInformation(stream, tfd);
programCode = stream.ToArray();
programCodeHash = _cacheManager.ComputeHash(programCode);
}
}
/// <summary>
/// Create guest shader cache entries from the runtime contexts.
/// </summary>
/// <param name="channel">The GPU channel in use</param>
/// <param name="shaderContexts">The runtime contexts</param>
/// <returns>Guest shader cahe entries from the runtime contexts</returns>
public static GuestShaderCacheEntry[] CreateShaderCacheEntries(GpuChannel channel, ReadOnlySpan <TranslatorContext> shaderContexts)
{
MemoryManager memoryManager = channel.MemoryManager;
int startIndex = shaderContexts.Length > 1 ? 1 : 0;
GuestShaderCacheEntry[] entries = new GuestShaderCacheEntry[shaderContexts.Length - startIndex];
for (int i = startIndex; i < shaderContexts.Length; i++)
{
TranslatorContext context = shaderContexts[i];
if (context == null)
{
continue;
}
GpuAccessor gpuAccessor = context.GpuAccessor as GpuAccessor;
ulong cb1DataAddress;
int cb1DataSize = gpuAccessor?.Cb1DataSize ?? 0;
if (context.Stage == ShaderStage.Compute)
{
cb1DataAddress = channel.BufferManager.GetComputeUniformBufferAddress(1);
}
else
{
int stageIndex = context.Stage switch
{
ShaderStage.TessellationControl => 1,
ShaderStage.TessellationEvaluation => 2,
ShaderStage.Geometry => 3,
ShaderStage.Fragment => 4,
_ => 0
};
cb1DataAddress = channel.BufferManager.GetGraphicsUniformBufferAddress(stageIndex, 1);
}
int size = context.Size;
TranslatorContext translatorContext2 = i == 1 ? shaderContexts[0] : null;
int sizeA = translatorContext2 != null ? translatorContext2.Size : 0;
byte[] code = new byte[size + cb1DataSize + sizeA];
memoryManager.GetSpan(context.Address, size).CopyTo(code);
if (cb1DataAddress != 0 && cb1DataSize != 0)
{
memoryManager.Physical.GetSpan(cb1DataAddress, cb1DataSize).CopyTo(code.AsSpan(size, cb1DataSize));
}
if (translatorContext2 != null)
{
memoryManager.GetSpan(translatorContext2.Address, sizeA).CopyTo(code.AsSpan(size + cb1DataSize, sizeA));
}
GuestGpuAccessorHeader gpuAccessorHeader = CreateGuestGpuAccessorCache(context.GpuAccessor);
if (gpuAccessor != null)
{
gpuAccessorHeader.TextureDescriptorCount = context.TextureHandlesForCache.Count;
}
GuestShaderCacheEntryHeader header = new GuestShaderCacheEntryHeader(
context.Stage,
size + cb1DataSize,
sizeA,
cb1DataSize,
gpuAccessorHeader);
GuestShaderCacheEntry entry = new GuestShaderCacheEntry(header, code);
if (gpuAccessor != null)
{
foreach (int textureHandle in context.TextureHandlesForCache)
{
GuestTextureDescriptor textureDescriptor = ((Image.TextureDescriptor)gpuAccessor.GetTextureDescriptor(textureHandle, -1)).ToCache();
textureDescriptor.Handle = (uint)textureHandle;
entry.TextureDescriptors.Add(textureHandle, textureDescriptor);
}
}
entries[i - startIndex] = entry;
}
return(entries);
}