316 lines
No EOL
12 KiB
C#
316 lines
No EOL
12 KiB
C#
using Ryujinx.Graphics.Shader.Decoders;
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using Ryujinx.Graphics.Shader.IntermediateRepresentation;
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using Ryujinx.Graphics.Shader.Translation;
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using static Ryujinx.Graphics.Shader.Instructions.InstEmitHelper;
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using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
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namespace Ryujinx.Graphics.Shader.Instructions
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{
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static partial class InstEmit
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{
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public static void Al2p(EmitterContext context)
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{
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InstAl2p op = context.GetOp<InstAl2p>();
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context.Copy(GetDest(op.Dest), context.IAdd(GetSrcReg(context, op.SrcA), Const(op.Imm11)));
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}
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public static void Ald(EmitterContext context)
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{
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InstAld op = context.GetOp<InstAld>();
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Operand primVertex = context.Copy(GetSrcReg(context, op.SrcB));
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for (int index = 0; index < (int)op.AlSize + 1; index++)
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{
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Register rd = new Register(op.Dest + index, RegisterType.Gpr);
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if (rd.IsRZ)
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{
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break;
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}
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if (op.Phys)
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{
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Operand userAttrOffset = context.ISubtract(GetSrcReg(context, op.SrcA), Const(AttributeConsts.UserAttributeBase));
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Operand userAttrIndex = context.ShiftRightU32(userAttrOffset, Const(2));
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context.Copy(Register(rd), context.LoadAttribute(Const(AttributeConsts.UserAttributeBase), userAttrIndex, primVertex));
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context.Config.SetUsedFeature(FeatureFlags.IaIndexing);
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}
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else if (op.SrcB == RegisterConsts.RegisterZeroIndex || op.P)
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{
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int offset = FixedFuncToUserAttribute(context.Config, op.Imm11 + index * 4, op.O);
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context.FlagAttributeRead(offset);
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if (op.O && CanLoadOutput(offset))
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{
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offset |= AttributeConsts.LoadOutputMask;
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}
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Operand src = op.P ? AttributePerPatch(offset) : Attribute(offset);
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context.Copy(Register(rd), src);
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}
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else
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{
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int offset = FixedFuncToUserAttribute(context.Config, op.Imm11 + index * 4, op.O);
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context.FlagAttributeRead(offset);
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if (op.O && CanLoadOutput(offset))
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{
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offset |= AttributeConsts.LoadOutputMask;
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}
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Operand src = Const(offset);
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context.Copy(Register(rd), context.LoadAttribute(src, Const(0), primVertex));
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}
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}
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}
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public static void Ast(EmitterContext context)
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{
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InstAst op = context.GetOp<InstAst>();
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for (int index = 0; index < (int)op.AlSize + 1; index++)
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{
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if (op.SrcB + index > RegisterConsts.RegisterZeroIndex)
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{
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break;
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}
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Register rd = new Register(op.SrcB + index, RegisterType.Gpr);
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if (op.Phys)
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{
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Operand userAttrOffset = context.ISubtract(GetSrcReg(context, op.SrcA), Const(AttributeConsts.UserAttributeBase));
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Operand userAttrIndex = context.ShiftRightU32(userAttrOffset, Const(2));
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context.StoreAttribute(Const(AttributeConsts.UserAttributeBase), userAttrIndex, Register(rd));
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context.Config.SetUsedFeature(FeatureFlags.OaIndexing);
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}
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else
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{
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// TODO: Support indirect stores using Ra.
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int offset = op.Imm11 + index * 4;
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if (!context.Config.IsUsedOutputAttribute(offset))
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{
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return;
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}
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offset = FixedFuncToUserAttribute(context.Config, offset, isOutput: true);
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context.FlagAttributeWritten(offset);
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Operand dest = op.P ? AttributePerPatch(offset) : Attribute(offset);
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context.Copy(dest, Register(rd));
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}
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}
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}
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public static void Ipa(EmitterContext context)
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{
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InstIpa op = context.GetOp<InstIpa>();
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context.FlagAttributeRead(op.Imm10);
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Operand res;
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bool isFixedFunc = false;
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if (op.Idx)
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{
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Operand userAttrOffset = context.ISubtract(GetSrcReg(context, op.SrcA), Const(AttributeConsts.UserAttributeBase));
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Operand userAttrIndex = context.ShiftRightU32(userAttrOffset, Const(2));
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res = context.LoadAttribute(Const(AttributeConsts.UserAttributeBase), userAttrIndex, Const(0));
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res = context.FPMultiply(res, Attribute(AttributeConsts.PositionW));
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context.Config.SetUsedFeature(FeatureFlags.IaIndexing);
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}
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else
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{
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isFixedFunc = TryFixedFuncToUserAttributeIpa(context, op.Imm10, out res);
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if (op.Imm10 >= AttributeConsts.UserAttributeBase && op.Imm10 < AttributeConsts.UserAttributeEnd)
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{
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int index = (op.Imm10 - AttributeConsts.UserAttributeBase) >> 4;
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if (context.Config.ImapTypes[index].GetFirstUsedType() == PixelImap.Perspective)
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{
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res = context.FPMultiply(res, Attribute(AttributeConsts.PositionW));
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}
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}
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}
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if (op.IpaOp == IpaOp.Multiply && !isFixedFunc)
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{
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Operand srcB = GetSrcReg(context, op.SrcB);
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res = context.FPMultiply(res, srcB);
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}
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res = context.FPSaturate(res, op.Sat);
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context.Copy(GetDest(op.Dest), res);
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}
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public static void Isberd(EmitterContext context)
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{
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InstIsberd op = context.GetOp<InstIsberd>();
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// This instruction performs a load from ISBE (Internal Stage Buffer Entry) memory.
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// Here, we just propagate the offset, as the result from this instruction is usually
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// used with ALD to perform vertex load on geometry or tessellation shaders.
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// The offset is calculated as (PrimitiveIndex * VerticesPerPrimitive) + VertexIndex.
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// Since we hardcode PrimitiveIndex to zero, then the offset will be just VertexIndex.
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context.Copy(GetDest(op.Dest), GetSrcReg(context, op.SrcA));
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}
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public static void OutR(EmitterContext context)
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{
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InstOutR op = context.GetOp<InstOutR>();
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EmitOut(context, op.OutType.HasFlag(OutType.Emit), op.OutType.HasFlag(OutType.Cut));
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}
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public static void OutI(EmitterContext context)
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{
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InstOutI op = context.GetOp<InstOutI>();
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EmitOut(context, op.OutType.HasFlag(OutType.Emit), op.OutType.HasFlag(OutType.Cut));
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}
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public static void OutC(EmitterContext context)
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{
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InstOutC op = context.GetOp<InstOutC>();
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EmitOut(context, op.OutType.HasFlag(OutType.Emit), op.OutType.HasFlag(OutType.Cut));
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}
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private static void EmitOut(EmitterContext context, bool emit, bool cut)
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{
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if (!(emit || cut))
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{
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context.Config.GpuAccessor.Log("Invalid OUT encoding.");
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}
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if (emit)
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{
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if (context.Config.LastInVertexPipeline)
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{
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context.PrepareForVertexReturn(out var tempXLocal, out var tempYLocal, out var tempZLocal);
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context.EmitVertex();
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// Restore output position value before transformation.
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if (tempXLocal != null)
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{
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context.Copy(Attribute(AttributeConsts.PositionX), tempXLocal);
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}
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if (tempYLocal != null)
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{
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context.Copy(Attribute(AttributeConsts.PositionY), tempYLocal);
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}
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if (tempZLocal != null)
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{
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context.Copy(Attribute(AttributeConsts.PositionZ), tempZLocal);
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}
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}
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else
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{
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context.EmitVertex();
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}
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}
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if (cut)
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{
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context.EndPrimitive();
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}
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}
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private static bool CanLoadOutput(int attr)
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{
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return attr != AttributeConsts.TessCoordX && attr != AttributeConsts.TessCoordY;
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}
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private static bool TryFixedFuncToUserAttributeIpa(EmitterContext context, int attr, out Operand selectedAttr)
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{
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if (attr >= AttributeConsts.FrontColorDiffuseR && attr < AttributeConsts.BackColorDiffuseR)
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{
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// TODO: If two sided rendering is enabled, then this should return
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// FrontColor if the fragment is front facing, and back color otherwise.
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int index = (attr - AttributeConsts.FrontColorDiffuseR) >> 4;
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int userAttrIndex = context.Config.GetFreeUserAttribute(isOutput: false, index);
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Operand frontAttr = Attribute(AttributeConsts.UserAttributeBase + userAttrIndex * 16 + (attr & 0xf));
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context.Config.SetInputUserAttributeFixedFunc(userAttrIndex);
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selectedAttr = frontAttr;
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return true;
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}
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else if (attr >= AttributeConsts.BackColorDiffuseR && attr < AttributeConsts.ClipDistance0)
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{
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selectedAttr = ConstF(((attr >> 2) & 3) == 3 ? 1f : 0f);
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return true;
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}
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else if (attr >= AttributeConsts.TexCoordBase && attr < AttributeConsts.TexCoordEnd)
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{
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selectedAttr = Attribute(FixedFuncToUserAttribute(context.Config, attr, AttributeConsts.TexCoordBase, 4, isOutput: false));
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return true;
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}
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selectedAttr = Attribute(attr);
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return false;
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}
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private static int FixedFuncToUserAttribute(ShaderConfig config, int attr, bool isOutput)
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{
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if (attr >= AttributeConsts.FrontColorDiffuseR && attr < AttributeConsts.ClipDistance0)
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{
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attr = FixedFuncToUserAttribute(config, attr, AttributeConsts.FrontColorDiffuseR, 0, isOutput);
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}
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else if (attr >= AttributeConsts.TexCoordBase && attr < AttributeConsts.TexCoordEnd)
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{
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attr = FixedFuncToUserAttribute(config, attr, AttributeConsts.TexCoordBase, 4, isOutput);
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}
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return attr;
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}
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private static int FixedFuncToUserAttribute(ShaderConfig config, int attr, int baseAttr, int baseIndex, bool isOutput)
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{
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int index = (attr - baseAttr) >> 4;
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int userAttrIndex = config.GetFreeUserAttribute(isOutput, index);
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if ((uint)userAttrIndex < Constants.MaxAttributes)
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{
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userAttrIndex += baseIndex;
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attr = AttributeConsts.UserAttributeBase + userAttrIndex * 16 + (attr & 0xf);
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if (isOutput)
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{
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config.SetOutputUserAttributeFixedFunc(userAttrIndex);
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}
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else
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{
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config.SetInputUserAttributeFixedFunc(userAttrIndex);
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}
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}
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return attr;
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}
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}
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} |