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Implement transform feedback emulation for hardware without native support (#5080)

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* Implement transform feedback emulation for hardware without native support

* Stop doing some useless buffer updates and account for non-zero base instance

* Reduce redundant updates even more

* Update descriptor init logic to account for ResourceLayout

* Fix transform feedback and storage buffers not being updated in some cases

* Shader cache version bump

* PR feedback

* SetInstancedDrawVertexCount must be always called after UpdateState

* Minor typo
This commit is contained in:
gdkchan 2023-06-10 18:31:38 -03:00 • committed by GitHub
parent 0e95a8271a
commit eb0bb36bbf
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GPG key ID: 4AEE18F83AFDEB23
21 changed files with 375 additions and 68 deletions
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32
src/Ryujinx.Graphics.Shader/Translation/ShaderConfig.cs
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@ -132,6 +132,11 @@ namespace Ryujinx.Graphics.Shader.Translation
_transformFeedbackDefinitions = new Dictionary<TransformFeedbackVariable, TransformFeedbackOutput>();
TransformFeedbackEnabled =
stage != ShaderStage.Compute &&
gpuAccessor.QueryTransformFeedbackEnabled() &&
gpuAccessor.QueryHostSupportsTransformFeedback();
UsedInputAttributesPerPatch = new HashSet<int>();
UsedOutputAttributesPerPatch = new HashSet<int>();
@ -139,6 +144,31 @@ namespace Ryujinx.Graphics.Shader.Translation
_usedImages = new Dictionary<TextureInfo, TextureMeta>();
ResourceManager = new ResourceManager(stage, gpuAccessor, new ShaderProperties());
if (!gpuAccessor.QueryHostSupportsTransformFeedback() && gpuAccessor.QueryTransformFeedbackEnabled())
{
StructureType tfeInfoStruct = new StructureType(new StructureField[]
{
new StructureField(AggregateType.Array | AggregateType.U32, "base_offset", 4),
new StructureField(AggregateType.U32, "vertex_count")
});
BufferDefinition tfeInfoBuffer = new BufferDefinition(BufferLayout.Std430, 1, Constants.TfeInfoBinding, "tfe_info", tfeInfoStruct);
Properties.AddStorageBuffer(Constants.TfeInfoBinding, tfeInfoBuffer);
StructureType tfeDataStruct = new StructureType(new StructureField[]
{
new StructureField(AggregateType.Array | AggregateType.U32, "data", 0)
});
for (int i = 0; i < Constants.TfeBuffersCount; i++)
{
int binding = Constants.TfeBufferBaseBinding + i;
BufferDefinition tfeDataBuffer = new BufferDefinition(BufferLayout.Std430, 1, binding, $"tfe_data{i}", tfeDataStruct);
Properties.AddStorageBuffer(binding, tfeDataBuffer);
}
}
}
public ShaderConfig(
@ -151,7 +181,6 @@ namespace Ryujinx.Graphics.Shader.Translation
ThreadsPerInputPrimitive = 1;
OutputTopology = outputTopology;
MaxOutputVertices = maxOutputVertices;
TransformFeedbackEnabled = gpuAccessor.QueryTransformFeedbackEnabled();
}
public ShaderConfig(ShaderHeader header, IGpuAccessor gpuAccessor, TranslationOptions options) : this(header.Stage, gpuAccessor, options)
@ -165,7 +194,6 @@ namespace Ryujinx.Graphics.Shader.Translation
OmapTargets = header.OmapTargets;
OmapSampleMask = header.OmapSampleMask;
OmapDepth = header.OmapDepth;
TransformFeedbackEnabled = gpuAccessor.QueryTransformFeedbackEnabled();
LastInVertexPipeline = header.Stage < ShaderStage.Fragment;
}