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Initial tessellation shader support (#2534)

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* Initial tessellation shader support

* Nits

* Re-arrange built-in table

* This is not needed anymore

* PR feedback
This commit is contained in:
gdkchan 2021-10-18 18:38:04 -03:00 • committed by GitHub
parent 7603dbe3c8
commit d512ce122c
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GPG key ID: 4AEE18F83AFDEB23
42 changed files with 775 additions and 148 deletions
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125
Ryujinx.Graphics.Shader/CodeGen/Glsl/OperandManager.cs
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@ -29,27 +29,33 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
private static Dictionary<int, BuiltInAttribute> _builtInAttributes =
new Dictionary<int, BuiltInAttribute>()
{
{ AttributeConsts.Layer, new BuiltInAttribute("gl_Layer", VariableType.S32) },
{ AttributeConsts.PointSize, new BuiltInAttribute("gl_PointSize", VariableType.F32) },
{ AttributeConsts.PositionX, new BuiltInAttribute("gl_Position.x", VariableType.F32) },
{ AttributeConsts.PositionY, new BuiltInAttribute("gl_Position.y", VariableType.F32) },
{ AttributeConsts.PositionZ, new BuiltInAttribute("gl_Position.z", VariableType.F32) },
{ AttributeConsts.PositionW, new BuiltInAttribute("gl_Position.w", VariableType.F32) },
{ AttributeConsts.ClipDistance0, new BuiltInAttribute("gl_ClipDistance[0]", VariableType.F32) },
{ AttributeConsts.ClipDistance1, new BuiltInAttribute("gl_ClipDistance[1]", VariableType.F32) },
{ AttributeConsts.ClipDistance2, new BuiltInAttribute("gl_ClipDistance[2]", VariableType.F32) },
{ AttributeConsts.ClipDistance3, new BuiltInAttribute("gl_ClipDistance[3]", VariableType.F32) },
{ AttributeConsts.ClipDistance4, new BuiltInAttribute("gl_ClipDistance[4]", VariableType.F32) },
{ AttributeConsts.ClipDistance5, new BuiltInAttribute("gl_ClipDistance[5]", VariableType.F32) },
{ AttributeConsts.ClipDistance6, new BuiltInAttribute("gl_ClipDistance[6]", VariableType.F32) },
{ AttributeConsts.ClipDistance7, new BuiltInAttribute("gl_ClipDistance[7]", VariableType.F32) },
{ AttributeConsts.PointCoordX, new BuiltInAttribute("gl_PointCoord.x", VariableType.F32) },
{ AttributeConsts.PointCoordY, new BuiltInAttribute("gl_PointCoord.y", VariableType.F32) },
{ AttributeConsts.TessCoordX, new BuiltInAttribute("gl_TessCoord.x", VariableType.F32) },
{ AttributeConsts.TessCoordY, new BuiltInAttribute("gl_TessCoord.y", VariableType.F32) },
{ AttributeConsts.InstanceId, new BuiltInAttribute("gl_InstanceID", VariableType.S32) },
{ AttributeConsts.VertexId, new BuiltInAttribute("gl_VertexID", VariableType.S32) },
{ AttributeConsts.FrontFacing, new BuiltInAttribute("gl_FrontFacing", VariableType.Bool) },
{ AttributeConsts.TessLevelOuter0, new BuiltInAttribute("gl_TessLevelOuter[0]", VariableType.F32) },
{ AttributeConsts.TessLevelOuter1, new BuiltInAttribute("gl_TessLevelOuter[1]", VariableType.F32) },
{ AttributeConsts.TessLevelOuter2, new BuiltInAttribute("gl_TessLevelOuter[2]", VariableType.F32) },
{ AttributeConsts.TessLevelOuter3, new BuiltInAttribute("gl_TessLevelOuter[3]", VariableType.F32) },
{ AttributeConsts.TessLevelInner0, new BuiltInAttribute("gl_TessLevelInner[0]", VariableType.F32) },
{ AttributeConsts.TessLevelInner1, new BuiltInAttribute("gl_TessLevelInner[1]", VariableType.F32) },
{ AttributeConsts.Layer, new BuiltInAttribute("gl_Layer", VariableType.S32) },
{ AttributeConsts.PointSize, new BuiltInAttribute("gl_PointSize", VariableType.F32) },
{ AttributeConsts.PositionX, new BuiltInAttribute("gl_Position.x", VariableType.F32) },
{ AttributeConsts.PositionY, new BuiltInAttribute("gl_Position.y", VariableType.F32) },
{ AttributeConsts.PositionZ, new BuiltInAttribute("gl_Position.z", VariableType.F32) },
{ AttributeConsts.PositionW, new BuiltInAttribute("gl_Position.w", VariableType.F32) },
{ AttributeConsts.ClipDistance0, new BuiltInAttribute("gl_ClipDistance[0]", VariableType.F32) },
{ AttributeConsts.ClipDistance1, new BuiltInAttribute("gl_ClipDistance[1]", VariableType.F32) },
{ AttributeConsts.ClipDistance2, new BuiltInAttribute("gl_ClipDistance[2]", VariableType.F32) },
{ AttributeConsts.ClipDistance3, new BuiltInAttribute("gl_ClipDistance[3]", VariableType.F32) },
{ AttributeConsts.ClipDistance4, new BuiltInAttribute("gl_ClipDistance[4]", VariableType.F32) },
{ AttributeConsts.ClipDistance5, new BuiltInAttribute("gl_ClipDistance[5]", VariableType.F32) },
{ AttributeConsts.ClipDistance6, new BuiltInAttribute("gl_ClipDistance[6]", VariableType.F32) },
{ AttributeConsts.ClipDistance7, new BuiltInAttribute("gl_ClipDistance[7]", VariableType.F32) },
{ AttributeConsts.PointCoordX, new BuiltInAttribute("gl_PointCoord.x", VariableType.F32) },
{ AttributeConsts.PointCoordY, new BuiltInAttribute("gl_PointCoord.y", VariableType.F32) },
{ AttributeConsts.TessCoordX, new BuiltInAttribute("gl_TessCoord.x", VariableType.F32) },
{ AttributeConsts.TessCoordY, new BuiltInAttribute("gl_TessCoord.y", VariableType.F32) },
{ AttributeConsts.InstanceId, new BuiltInAttribute("gl_InstanceID", VariableType.S32) },
{ AttributeConsts.VertexId, new BuiltInAttribute("gl_VertexID", VariableType.S32) },
{ AttributeConsts.FrontFacing, new BuiltInAttribute("gl_FrontFacing", VariableType.Bool) },
// Special.
{ AttributeConsts.FragmentOutputDepth, new BuiltInAttribute("gl_FragDepth", VariableType.F32) },
@ -61,6 +67,9 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
{ AttributeConsts.CtaIdY, new BuiltInAttribute("gl_WorkGroupID.y", VariableType.U32) },
{ AttributeConsts.CtaIdZ, new BuiltInAttribute("gl_WorkGroupID.z", VariableType.U32) },
{ AttributeConsts.LaneId, new BuiltInAttribute(null, VariableType.U32) },
{ AttributeConsts.InvocationId, new BuiltInAttribute("gl_InvocationID", VariableType.S32) },
{ AttributeConsts.PrimitiveId, new BuiltInAttribute("gl_PrimitiveID", VariableType.S32) },
{ AttributeConsts.PatchVerticesIn, new BuiltInAttribute("gl_PatchVerticesIn", VariableType.S32) },
{ AttributeConsts.EqMask, new BuiltInAttribute(null, VariableType.U32) },
{ AttributeConsts.GeMask, new BuiltInAttribute(null, VariableType.U32) },
{ AttributeConsts.GtMask, new BuiltInAttribute(null, VariableType.U32) },
@ -99,19 +108,21 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
return operand.Type switch
{
OperandType.Argument => GetArgumentName(operand.Value),
OperandType.Attribute => GetAttributeName(operand.Value, config),
OperandType.Attribute => GetAttributeName(operand.Value, config, perPatch: false),
OperandType.AttributePerPatch => GetAttributeName(operand.Value, config, perPatch: true),
OperandType.Constant => NumberFormatter.FormatInt(operand.Value),
OperandType.ConstantBuffer => GetConstantBufferName(
operand.CbufSlot,
operand.CbufOffset,
config.Stage,
config.UsedFeatures.HasFlag(FeatureFlags.CbIndexing)),
OperandType.ConstantBuffer => GetConstantBufferName(operand, config),
OperandType.LocalVariable => _locals[operand],
OperandType.Undefined => DefaultNames.UndefinedName,
_ => throw new ArgumentException($"Invalid operand type \"{operand.Type}\".")
};
}
private static string GetConstantBufferName(AstOperand operand, ShaderConfig config)
{
return GetConstantBufferName(operand.CbufSlot, operand.CbufOffset, config.Stage, config.UsedFeatures.HasFlag(FeatureFlags.CbIndexing));
}
public static string GetConstantBufferName(int slot, int offset, ShaderStage stage, bool cbIndexable)
{
return $"{GetUbName(stage, slot, cbIndexable)}[{offset >> 2}].{GetSwizzleMask(offset & 3)}";
@ -142,14 +153,19 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
return GetVec4Indexed(GetUbName(stage, slotExpr) + $"[{offsetExpr} >> 2]", offsetExpr + " & 3", indexElement);
}
public static string GetOutAttributeName(int value, ShaderConfig config)
public static string GetOutAttributeName(int value, ShaderConfig config, bool perPatch)
{
return GetAttributeName(value, config, isOutAttr: true);
return GetAttributeName(value, config, perPatch, isOutAttr: true);
}
public static string GetAttributeName(int value, ShaderConfig config, bool isOutAttr = false, string indexExpr = "0")
public static string GetAttributeName(int value, ShaderConfig config, bool perPatch, bool isOutAttr = false, string indexExpr = "0")
{
value &= ~3;
if ((value & AttributeConsts.LoadOutputMask) != 0)
{
isOutAttr = true;
}
value &= AttributeConsts.Mask & ~3;
char swzMask = GetSwizzleMask((value >> 2) & 3);
if (value >= AttributeConsts.UserAttributeBase && value < AttributeConsts.UserAttributeEnd)
@ -160,7 +176,14 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
? DefaultNames.OAttributePrefix
: DefaultNames.IAttributePrefix;
if (config.UsedFeatures.HasFlag(isOutAttr ? FeatureFlags.OaIndexing : FeatureFlags.IaIndexing))
bool indexable = config.UsedFeatures.HasFlag(isOutAttr ? FeatureFlags.OaIndexing : FeatureFlags.IaIndexing);
if (!indexable && perPatch)
{
prefix = DefaultNames.PerPatchAttributePrefix;
}
if (indexable)
{
string name = prefix;
@ -175,9 +198,9 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
{
string name = $"{prefix}{(value >> 4)}_{swzMask}";
if (config.Stage == ShaderStage.Geometry && !isOutAttr)
if (!perPatch && IsArrayAttribute(config.Stage, isOutAttr))
{
name += $"[{indexExpr}]";
name += isOutAttr ? "[gl_InvocationID]" : $"[{indexExpr}]";
}
return name;
@ -186,9 +209,9 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
{
string name = $"{prefix}{(value >> 4)}";
if (config.Stage == ShaderStage.Geometry && !isOutAttr)
if (!perPatch && IsArrayAttribute(config.Stage, isOutAttr))
{
name += $"[{indexExpr}]";
name += isOutAttr ? "[gl_InvocationID]" : $"[{indexExpr}]";
}
return name + '.' + swzMask;
@ -250,9 +273,9 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
string name = builtInAttr.Name;
if (config.Stage == ShaderStage.Geometry && (value & AttributeConsts.SpecialMask) == 0 && !isOutAttr)
if (!perPatch && IsArrayAttribute(config.Stage, isOutAttr) && IsArrayBuiltIn(value))
{
name = $"gl_in[{indexExpr}].{name}";
name = isOutAttr ? $"gl_out[gl_InvocationID].{name}" : $"gl_in[{indexExpr}].{name}";
}
return name;
@ -278,6 +301,32 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
return $"{name}[{attrExpr} >> 2][{attrExpr} & 3]";
}
public static bool IsArrayAttribute(ShaderStage stage, bool isOutAttr)
{
if (isOutAttr)
{
return stage == ShaderStage.TessellationControl;
}
else
{
return stage == ShaderStage.TessellationControl ||
stage == ShaderStage.TessellationEvaluation ||
stage == ShaderStage.Geometry;
}
}
private static bool IsArrayBuiltIn(int attr)
{
if (attr <= AttributeConsts.TessLevelInner1 ||
attr == AttributeConsts.TessCoordX ||
attr == AttributeConsts.TessCoordY)
{
return false;
}
return (attr & AttributeConsts.SpecialMask) == 0;
}
public static string GetUbName(ShaderStage stage, int slot, bool cbIndexable)
{
if (cbIndexable)