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authorTSR Berry <20988865+TSRBerry@users.noreply.github.com>2023-04-08 01:22:00 +0200
committerMary <thog@protonmail.com>2023-04-27 23:51:14 +0200
commitcee712105850ac3385cd0091a923438167433f9f (patch)
tree4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs
parentcd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff)
Move solution and projects to src
Diffstat (limited to 'src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs')
-rw-r--r--src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs492
1 files changed, 492 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs b/src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs
new file mode 100644
index 00000000..112baccf
--- /dev/null
+++ b/src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs
@@ -0,0 +1,492 @@
+using Ryujinx.Graphics.Shader.Decoders;
+using Ryujinx.Graphics.Shader.IntermediateRepresentation;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Numerics;
+using System.Runtime.CompilerServices;
+
+using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
+
+namespace Ryujinx.Graphics.Shader.Translation
+{
+ class EmitterContext
+ {
+ public DecodedProgram Program { get; }
+ public ShaderConfig Config { get; }
+
+ public bool IsNonMain { get; }
+
+ public Block CurrBlock { get; set; }
+ public InstOp CurrOp { get; set; }
+
+ public int OperationsCount => _operations.Count;
+
+ private readonly struct BrxTarget
+ {
+ public readonly Operand Selector;
+ public readonly int ExpectedValue;
+ public readonly ulong NextTargetAddress;
+
+ public BrxTarget(Operand selector, int expectedValue, ulong nextTargetAddress)
+ {
+ Selector = selector;
+ ExpectedValue = expectedValue;
+ NextTargetAddress = nextTargetAddress;
+ }
+ }
+
+ private class BlockLabel
+ {
+ public readonly Operand Label;
+ public BrxTarget BrxTarget;
+
+ public BlockLabel(Operand label)
+ {
+ Label = label;
+ }
+ }
+
+ private readonly List<Operation> _operations;
+ private readonly Dictionary<ulong, BlockLabel> _labels;
+
+ public EmitterContext(DecodedProgram program, ShaderConfig config, bool isNonMain)
+ {
+ Program = program;
+ Config = config;
+ IsNonMain = isNonMain;
+ _operations = new List<Operation>();
+ _labels = new Dictionary<ulong, BlockLabel>();
+
+ EmitStart();
+ }
+
+ private void EmitStart()
+ {
+ if (Config.Stage == ShaderStage.Vertex &&
+ Config.Options.TargetApi == TargetApi.Vulkan &&
+ (Config.Options.Flags & TranslationFlags.VertexA) == 0)
+ {
+ // Vulkan requires the point size to be always written on the shader if the primitive topology is points.
+ this.Store(StorageKind.Output, IoVariable.PointSize, null, ConstF(Config.GpuAccessor.QueryPointSize()));
+ }
+ }
+
+ public T GetOp<T>() where T : unmanaged
+ {
+ Debug.Assert(Unsafe.SizeOf<T>() == sizeof(ulong));
+ ulong op = CurrOp.RawOpCode;
+ return Unsafe.As<ulong, T>(ref op);
+ }
+
+ public Operand Add(Instruction inst, Operand dest = null, params Operand[] sources)
+ {
+ Operation operation = new Operation(inst, dest, sources);
+
+ _operations.Add(operation);
+
+ return dest;
+ }
+
+ public Operand Add(Instruction inst, StorageKind storageKind, Operand dest = null, params Operand[] sources)
+ {
+ Operation operation = new Operation(inst, storageKind, dest, sources);
+
+ _operations.Add(operation);
+
+ return dest;
+ }
+
+ public (Operand, Operand) Add(Instruction inst, (Operand, Operand) dest, params Operand[] sources)
+ {
+ Operand[] dests = new[] { dest.Item1, dest.Item2 };
+
+ Operation operation = new Operation(inst, 0, dests, sources);
+
+ Add(operation);
+
+ return dest;
+ }
+
+ public void Add(Operation operation)
+ {
+ _operations.Add(operation);
+ }
+
+ public TextureOperation CreateTextureOperation(
+ Instruction inst,
+ SamplerType type,
+ TextureFlags flags,
+ int handle,
+ int compIndex,
+ Operand[] dests,
+ params Operand[] sources)
+ {
+ return CreateTextureOperation(inst, type, TextureFormat.Unknown, flags, handle, compIndex, dests, sources);
+ }
+
+ public TextureOperation CreateTextureOperation(
+ Instruction inst,
+ SamplerType type,
+ TextureFormat format,
+ TextureFlags flags,
+ int handle,
+ int compIndex,
+ Operand[] dests,
+ params Operand[] sources)
+ {
+ if (!flags.HasFlag(TextureFlags.Bindless))
+ {
+ Config.SetUsedTexture(inst, type, format, flags, TextureOperation.DefaultCbufSlot, handle);
+ }
+
+ return new TextureOperation(inst, type, format, flags, handle, compIndex, dests, sources);
+ }
+
+ public void FlagAttributeRead(int attribute)
+ {
+ if (Config.Stage == ShaderStage.Vertex && attribute == AttributeConsts.InstanceId)
+ {
+ Config.SetUsedFeature(FeatureFlags.InstanceId);
+ }
+ else if (Config.Stage == ShaderStage.Fragment)
+ {
+ switch (attribute)
+ {
+ case AttributeConsts.PositionX:
+ case AttributeConsts.PositionY:
+ Config.SetUsedFeature(FeatureFlags.FragCoordXY);
+ break;
+ }
+ }
+ }
+
+ public void FlagAttributeWritten(int attribute)
+ {
+ if (Config.Stage == ShaderStage.Vertex)
+ {
+ switch (attribute)
+ {
+ case AttributeConsts.ClipDistance0:
+ case AttributeConsts.ClipDistance1:
+ case AttributeConsts.ClipDistance2:
+ case AttributeConsts.ClipDistance3:
+ case AttributeConsts.ClipDistance4:
+ case AttributeConsts.ClipDistance5:
+ case AttributeConsts.ClipDistance6:
+ case AttributeConsts.ClipDistance7:
+ Config.SetClipDistanceWritten((attribute - AttributeConsts.ClipDistance0) / 4);
+ break;
+ }
+ }
+
+ if (Config.Stage != ShaderStage.Fragment && attribute == AttributeConsts.Layer)
+ {
+ Config.SetUsedFeature(FeatureFlags.RtLayer);
+ }
+ }
+
+ public void MarkLabel(Operand label)
+ {
+ Add(Instruction.MarkLabel, label);
+ }
+
+ public Operand GetLabel(ulong address)
+ {
+ return EnsureBlockLabel(address).Label;
+ }
+
+ public void SetBrxTarget(ulong address, Operand selector, int targetValue, ulong nextTargetAddress)
+ {
+ BlockLabel blockLabel = EnsureBlockLabel(address);
+ Debug.Assert(blockLabel.BrxTarget.Selector == null);
+ blockLabel.BrxTarget = new BrxTarget(selector, targetValue, nextTargetAddress);
+ }
+
+ public void EnterBlock(ulong address)
+ {
+ BlockLabel blockLabel = EnsureBlockLabel(address);
+
+ MarkLabel(blockLabel.Label);
+
+ BrxTarget brxTarget = blockLabel.BrxTarget;
+
+ if (brxTarget.Selector != null)
+ {
+ this.BranchIfFalse(GetLabel(brxTarget.NextTargetAddress), this.ICompareEqual(brxTarget.Selector, Const(brxTarget.ExpectedValue)));
+ }
+ }
+
+ private BlockLabel EnsureBlockLabel(ulong address)
+ {
+ if (!_labels.TryGetValue(address, out BlockLabel blockLabel))
+ {
+ blockLabel = new BlockLabel(Label());
+
+ _labels.Add(address, blockLabel);
+ }
+
+ return blockLabel;
+ }
+
+ public void PrepareForVertexReturn()
+ {
+ if (Config.GpuAccessor.QueryViewportTransformDisable())
+ {
+ Operand x = this.Load(StorageKind.Output, IoVariable.Position, null, Const(0));
+ Operand y = this.Load(StorageKind.Output, IoVariable.Position, null, Const(1));
+ Operand xScale = this.Load(StorageKind.Input, IoVariable.SupportBlockViewInverse, null, Const(0));
+ Operand yScale = this.Load(StorageKind.Input, IoVariable.SupportBlockViewInverse, null, Const(1));
+ Operand negativeOne = ConstF(-1.0f);
+
+ this.Store(StorageKind.Output, IoVariable.Position, null, Const(0), this.FPFusedMultiplyAdd(x, xScale, negativeOne));
+ this.Store(StorageKind.Output, IoVariable.Position, null, Const(1), this.FPFusedMultiplyAdd(y, yScale, negativeOne));
+ }
+
+ if (Config.Options.TargetApi == TargetApi.Vulkan && Config.GpuAccessor.QueryTransformDepthMinusOneToOne())
+ {
+ Operand z = this.Load(StorageKind.Output, IoVariable.Position, null, Const(2));
+ Operand w = this.Load(StorageKind.Output, IoVariable.Position, null, Const(3));
+ Operand halfW = this.FPMultiply(w, ConstF(0.5f));
+
+ this.Store(StorageKind.Output, IoVariable.Position, null, Const(2), this.FPFusedMultiplyAdd(z, ConstF(0.5f), halfW));
+ }
+
+ if (Config.Stage != ShaderStage.Geometry && Config.HasLayerInputAttribute)
+ {
+ Config.SetUsedFeature(FeatureFlags.RtLayer);
+
+ int attrVecIndex = Config.GpLayerInputAttribute >> 2;
+ int attrComponentIndex = Config.GpLayerInputAttribute & 3;
+
+ Operand layer = this.Load(StorageKind.Output, IoVariable.UserDefined, null, Const(attrVecIndex), Const(attrComponentIndex));
+
+ this.Store(StorageKind.Output, IoVariable.Layer, null, layer);
+ }
+ }
+
+ public void PrepareForVertexReturn(out Operand oldXLocal, out Operand oldYLocal, out Operand oldZLocal)
+ {
+ if (Config.GpuAccessor.QueryViewportTransformDisable())
+ {
+ oldXLocal = Local();
+ this.Copy(oldXLocal, this.Load(StorageKind.Output, IoVariable.Position, null, Const(0)));
+ oldYLocal = Local();
+ this.Copy(oldYLocal, this.Load(StorageKind.Output, IoVariable.Position, null, Const(1)));
+ }
+ else
+ {
+ oldXLocal = null;
+ oldYLocal = null;
+ }
+
+ if (Config.Options.TargetApi == TargetApi.Vulkan && Config.GpuAccessor.QueryTransformDepthMinusOneToOne())
+ {
+ oldZLocal = Local();
+ this.Copy(oldZLocal, this.Load(StorageKind.Output, IoVariable.Position, null, Const(2)));
+ }
+ else
+ {
+ oldZLocal = null;
+ }
+
+ PrepareForVertexReturn();
+ }
+
+ public void PrepareForReturn()
+ {
+ if (IsNonMain)
+ {
+ return;
+ }
+
+ if (Config.LastInVertexPipeline &&
+ (Config.Stage == ShaderStage.Vertex || Config.Stage == ShaderStage.TessellationEvaluation) &&
+ (Config.Options.Flags & TranslationFlags.VertexA) == 0)
+ {
+ PrepareForVertexReturn();
+ }
+ else if (Config.Stage == ShaderStage.Geometry)
+ {
+ void WritePositionOutput(int primIndex)
+ {
+ Operand x = this.Load(StorageKind.Input, IoVariable.Position, Const(primIndex), Const(0));
+ Operand y = this.Load(StorageKind.Input, IoVariable.Position, Const(primIndex), Const(1));
+ Operand z = this.Load(StorageKind.Input, IoVariable.Position, Const(primIndex), Const(2));
+ Operand w = this.Load(StorageKind.Input, IoVariable.Position, Const(primIndex), Const(3));
+
+ this.Store(StorageKind.Output, IoVariable.Position, null, Const(0), x);
+ this.Store(StorageKind.Output, IoVariable.Position, null, Const(1), y);
+ this.Store(StorageKind.Output, IoVariable.Position, null, Const(2), z);
+ this.Store(StorageKind.Output, IoVariable.Position, null, Const(3), w);
+ }
+
+ void WriteUserDefinedOutput(int index, int primIndex)
+ {
+ Operand x = this.Load(StorageKind.Input, IoVariable.UserDefined, Const(index), Const(primIndex), Const(0));
+ Operand y = this.Load(StorageKind.Input, IoVariable.UserDefined, Const(index), Const(primIndex), Const(1));
+ Operand z = this.Load(StorageKind.Input, IoVariable.UserDefined, Const(index), Const(primIndex), Const(2));
+ Operand w = this.Load(StorageKind.Input, IoVariable.UserDefined, Const(index), Const(primIndex), Const(3));
+
+ this.Store(StorageKind.Output, IoVariable.UserDefined, null, Const(index), Const(0), x);
+ this.Store(StorageKind.Output, IoVariable.UserDefined, null, Const(index), Const(1), y);
+ this.Store(StorageKind.Output, IoVariable.UserDefined, null, Const(index), Const(2), z);
+ this.Store(StorageKind.Output, IoVariable.UserDefined, null, Const(index), Const(3), w);
+ }
+
+ if (Config.GpPassthrough && !Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
+ {
+ int inputVertices = Config.GpuAccessor.QueryPrimitiveTopology().ToInputVertices();
+
+ for (int primIndex = 0; primIndex < inputVertices; primIndex++)
+ {
+ WritePositionOutput(primIndex);
+
+ int passthroughAttributes = Config.PassthroughAttributes;
+ while (passthroughAttributes != 0)
+ {
+ int index = BitOperations.TrailingZeroCount(passthroughAttributes);
+ WriteUserDefinedOutput(index, primIndex);
+ Config.SetOutputUserAttribute(index);
+ passthroughAttributes &= ~(1 << index);
+ }
+
+ this.EmitVertex();
+ }
+
+ this.EndPrimitive();
+ }
+ }
+ else if (Config.Stage == ShaderStage.Fragment)
+ {
+ GenerateAlphaToCoverageDitherDiscard();
+
+ bool supportsBgra = Config.GpuAccessor.QueryHostSupportsBgraFormat();
+
+ if (Config.OmapDepth)
+ {
+ Operand src = Register(Config.GetDepthRegister(), RegisterType.Gpr);
+
+ this.Store(StorageKind.Output, IoVariable.FragmentOutputDepth, null, src);
+ }
+
+ AlphaTestOp alphaTestOp = Config.GpuAccessor.QueryAlphaTestCompare();
+
+ if (alphaTestOp != AlphaTestOp.Always && (Config.OmapTargets & 8) != 0)
+ {
+ if (alphaTestOp == AlphaTestOp.Never)
+ {
+ this.Discard();
+ }
+ else
+ {
+ Instruction comparator = alphaTestOp switch
+ {
+ AlphaTestOp.Equal => Instruction.CompareEqual,
+ AlphaTestOp.Greater => Instruction.CompareGreater,
+ AlphaTestOp.GreaterOrEqual => Instruction.CompareGreaterOrEqual,
+ AlphaTestOp.Less => Instruction.CompareLess,
+ AlphaTestOp.LessOrEqual => Instruction.CompareLessOrEqual,
+ AlphaTestOp.NotEqual => Instruction.CompareNotEqual,
+ _ => 0
+ };
+
+ Debug.Assert(comparator != 0, $"Invalid alpha test operation \"{alphaTestOp}\".");
+
+ Operand alpha = Register(3, RegisterType.Gpr);
+ Operand alphaRef = ConstF(Config.GpuAccessor.QueryAlphaTestReference());
+ Operand alphaPass = Add(Instruction.FP32 | comparator, Local(), alpha, alphaRef);
+ Operand alphaPassLabel = Label();
+
+ this.BranchIfTrue(alphaPassLabel, alphaPass);
+ this.Discard();
+ this.MarkLabel(alphaPassLabel);
+ }
+ }
+
+ int regIndexBase = 0;
+
+ for (int rtIndex = 0; rtIndex < 8; rtIndex++)
+ {
+ for (int component = 0; component < 4; component++)
+ {
+ bool componentEnabled = (Config.OmapTargets & (1 << (rtIndex * 4 + component))) != 0;
+ if (!componentEnabled)
+ {
+ continue;
+ }
+
+ Operand src = Register(regIndexBase + component, RegisterType.Gpr);
+
+ // Perform B <-> R swap if needed, for BGRA formats (not supported on OpenGL).
+ if (!supportsBgra && (component == 0 || component == 2))
+ {
+ Operand isBgra = this.Load(StorageKind.Input, IoVariable.FragmentOutputIsBgra, null, Const(rtIndex));
+
+ Operand lblIsBgra = Label();
+ Operand lblEnd = Label();
+
+ this.BranchIfTrue(lblIsBgra, isBgra);
+
+ this.Store(StorageKind.Output, IoVariable.FragmentOutputColor, null, Const(rtIndex), Const(component), src);
+ this.Branch(lblEnd);
+
+ MarkLabel(lblIsBgra);
+
+ this.Store(StorageKind.Output, IoVariable.FragmentOutputColor, null, Const(rtIndex), Const(2 - component), src);
+
+ MarkLabel(lblEnd);
+ }
+ else
+ {
+ this.Store(StorageKind.Output, IoVariable.FragmentOutputColor, null, Const(rtIndex), Const(component), src);
+ }
+ }
+
+ bool targetEnabled = (Config.OmapTargets & (0xf << (rtIndex * 4))) != 0;
+ if (targetEnabled)
+ {
+ Config.SetOutputUserAttribute(rtIndex);
+ regIndexBase += 4;
+ }
+ }
+ }
+ }
+
+ private void GenerateAlphaToCoverageDitherDiscard()
+ {
+ // If the feature is disabled, or alpha is not written, then we're done.
+ if (!Config.GpuAccessor.QueryAlphaToCoverageDitherEnable() || (Config.OmapTargets & 8) == 0)
+ {
+ return;
+ }
+
+ // 11 11 11 10 10 10 10 00
+ // 11 01 01 01 01 00 00 00
+ Operand ditherMask = Const(unchecked((int)0xfbb99110u));
+
+ Operand fragCoordX = this.Load(StorageKind.Input, IoVariable.FragmentCoord, null, Const(0));
+ Operand fragCoordY = this.Load(StorageKind.Input, IoVariable.FragmentCoord, null, Const(1));
+
+ Operand x = this.BitwiseAnd(this.FP32ConvertToU32(fragCoordX), Const(1));
+ Operand y = this.BitwiseAnd(this.FP32ConvertToU32(fragCoordY), Const(1));
+ Operand xy = this.BitwiseOr(x, this.ShiftLeft(y, Const(1)));
+
+ Operand alpha = Register(3, RegisterType.Gpr);
+ Operand scaledAlpha = this.FPMultiply(this.FPSaturate(alpha), ConstF(8));
+ Operand quantizedAlpha = this.IMinimumU32(this.FP32ConvertToU32(scaledAlpha), Const(7));
+ Operand shift = this.BitwiseOr(this.ShiftLeft(quantizedAlpha, Const(2)), xy);
+ Operand opaque = this.BitwiseAnd(this.ShiftRightU32(ditherMask, shift), Const(1));
+
+ Operand a2cDitherEndLabel = Label();
+
+ this.BranchIfTrue(a2cDitherEndLabel, opaque);
+ this.Discard();
+ this.MarkLabel(a2cDitherEndLabel);
+ }
+
+ public Operation[] GetOperations()
+ {
+ return _operations.ToArray();
+ }
+ }
+} \ No newline at end of file
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