using Ryujinx.Graphics.Shader.IntermediateRepresentation; using Ryujinx.Graphics.Shader.StructuredIr; using static Ryujinx.Graphics.Shader.CodeGen.Glsl.TypeConversion; namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions { static class InstGenHelper { private static InstInfo[] _infoTbl; static InstGenHelper() { _infoTbl = new InstInfo[(int)Instruction.Count]; Add(Instruction.AtomicAdd, InstType.AtomicBinary, "atomicAdd"); Add(Instruction.AtomicAnd, InstType.AtomicBinary, "atomicAnd"); Add(Instruction.AtomicCompareAndSwap, InstType.AtomicTernary, "atomicCompSwap"); Add(Instruction.AtomicMaxS32, InstType.CallTernary, HelperFunctionNames.AtomicMaxS32); Add(Instruction.AtomicMaxU32, InstType.AtomicBinary, "atomicMax"); Add(Instruction.AtomicMinS32, InstType.CallTernary, HelperFunctionNames.AtomicMinS32); Add(Instruction.AtomicMinU32, InstType.AtomicBinary, "atomicMin"); Add(Instruction.AtomicOr, InstType.AtomicBinary, "atomicOr"); Add(Instruction.AtomicSwap, InstType.AtomicBinary, "atomicExchange"); Add(Instruction.AtomicXor, InstType.AtomicBinary, "atomicXor"); Add(Instruction.Absolute, InstType.CallUnary, "abs"); Add(Instruction.Add, InstType.OpBinaryCom, "+", 2); Add(Instruction.Ballot, InstType.Special); Add(Instruction.Barrier, InstType.CallNullary, "barrier"); Add(Instruction.BitCount, InstType.CallUnary, "bitCount"); Add(Instruction.BitfieldExtractS32, InstType.CallTernary, "bitfieldExtract"); Add(Instruction.BitfieldExtractU32, InstType.CallTernary, "bitfieldExtract"); Add(Instruction.BitfieldInsert, InstType.CallQuaternary, "bitfieldInsert"); Add(Instruction.BitfieldReverse, InstType.CallUnary, "bitfieldReverse"); Add(Instruction.BitwiseAnd, InstType.OpBinaryCom, "&", 6); Add(Instruction.BitwiseExclusiveOr, InstType.OpBinaryCom, "^", 7); Add(Instruction.BitwiseNot, InstType.OpUnary, "~", 0); Add(Instruction.BitwiseOr, InstType.OpBinaryCom, "|", 8); Add(Instruction.Call, InstType.Special); Add(Instruction.Ceiling, InstType.CallUnary, "ceil"); Add(Instruction.Clamp, InstType.CallTernary, "clamp"); Add(Instruction.ClampU32, InstType.CallTernary, "clamp"); Add(Instruction.CompareEqual, InstType.OpBinaryCom, "==", 5); Add(Instruction.CompareGreater, InstType.OpBinary, ">", 4); Add(Instruction.CompareGreaterOrEqual, InstType.OpBinary, ">=", 4); Add(Instruction.CompareGreaterOrEqualU32, InstType.OpBinary, ">=", 4); Add(Instruction.CompareGreaterU32, InstType.OpBinary, ">", 4); Add(Instruction.CompareLess, InstType.OpBinary, "<", 4); Add(Instruction.CompareLessOrEqual, InstType.OpBinary, "<=", 4); Add(Instruction.CompareLessOrEqualU32, InstType.OpBinary, "<=", 4); Add(Instruction.CompareLessU32, InstType.OpBinary, "<", 4); Add(Instruction.CompareNotEqual, InstType.OpBinaryCom, "!=", 5); Add(Instruction.ConditionalSelect, InstType.OpTernary, "?:", 12); Add(Instruction.ConvertFP32ToFP64, InstType.CallUnary, "double"); Add(Instruction.ConvertFP64ToFP32, InstType.CallUnary, "float"); Add(Instruction.ConvertFPToS32, InstType.CallUnary, "int"); Add(Instruction.ConvertFPToU32, InstType.CallUnary, "uint"); Add(Instruction.ConvertS32ToFP, InstType.CallUnary, "float"); Add(Instruction.ConvertU32ToFP, InstType.CallUnary, "float"); Add(Instruction.Cosine, InstType.CallUnary, "cos"); Add(Instruction.Ddx, InstType.CallUnary, "dFdx"); Add(Instruction.Ddy, InstType.CallUnary, "dFdy"); Add(Instruction.Discard, InstType.OpNullary, "discard"); Add(Instruction.Divide, InstType.OpBinary, "/", 1); Add(Instruction.EmitVertex, InstType.CallNullary, "EmitVertex"); Add(Instruction.EndPrimitive, InstType.CallNullary, "EndPrimitive"); Add(Instruction.ExponentB2, InstType.CallUnary, "exp2"); Add(Instruction.FindFirstSetS32, InstType.CallUnary, "findMSB"); Add(Instruction.FindFirstSetU32, InstType.CallUnary, "findMSB"); Add(Instruction.Floor, InstType.CallUnary, "floor"); Add(Instruction.FusedMultiplyAdd, InstType.CallTernary, "fma"); Add(Instruction.GroupMemoryBarrier, InstType.CallNullary, "groupMemoryBarrier"); Add(Instruction.ImageLoad, InstType.Special); Add(Instruction.ImageStore, InstType.Special); Add(Instruction.ImageAtomic, InstType.Special); Add(Instruction.IsNan, InstType.CallUnary, "isnan"); Add(Instruction.LoadAttribute, InstType.Special); Add(Instruction.LoadConstant, InstType.Special); Add(Instruction.LoadLocal, InstType.Special); Add(Instruction.LoadShared, InstType.Special); Add(Instruction.LoadStorage, InstType.Special); Add(Instruction.Lod, InstType.Special); Add(Instruction.LogarithmB2, InstType.CallUnary, "log2"); Add(Instruction.LogicalAnd, InstType.OpBinaryCom, "&&", 9); Add(Instruction.LogicalExclusiveOr, InstType.OpBinaryCom, "^^", 10); Add(Instruction.LogicalNot, InstType.OpUnary, "!", 0); Add(Instruction.LogicalOr, InstType.OpBinaryCom, "||", 11); Add(Instruction.LoopBreak, InstType.OpNullary, "break"); Add(Instruction.LoopContinue, InstType.OpNullary, "continue"); Add(Instruction.PackDouble2x32, InstType.Special); Add(Instruction.PackHalf2x16, InstType.Special); Add(Instruction.Maximum, InstType.CallBinary, "max"); Add(Instruction.MaximumU32, InstType.CallBinary, "max"); Add(Instruction.MemoryBarrier, InstType.CallNullary, "memoryBarrier"); Add(Instruction.Minimum, InstType.CallBinary, "min"); Add(Instruction.MinimumU32, InstType.CallBinary, "min"); Add(Instruction.Multiply, InstType.OpBinaryCom, "*", 1); Add(Instruction.MultiplyHighS32, InstType.CallBinary, HelperFunctionNames.MultiplyHighS32); Add(Instruction.MultiplyHighU32, InstType.CallBinary, HelperFunctionNames.MultiplyHighU32); Add(Instruction.Negate, InstType.Special); Add(Instruction.ReciprocalSquareRoot, InstType.CallUnary, "inversesqrt"); Add(Instruction.Return, InstType.OpNullary, "return"); Add(Instruction.Round, InstType.CallUnary, "roundEven"); Add(Instruction.ShiftLeft, InstType.OpBinary, "<<", 3); Add(Instruction.ShiftRightS32, InstType.OpBinary, ">>", 3); Add(Instruction.ShiftRightU32, InstType.OpBinary, ">>", 3); Add(Instruction.Shuffle, InstType.CallQuaternary, HelperFunctionNames.Shuffle); Add(Instruction.ShuffleDown, InstType.CallQuaternary, HelperFunctionNames.ShuffleDown); Add(Instruction.ShuffleUp, InstType.CallQuaternary, HelperFunctionNames.ShuffleUp); Add(Instruction.ShuffleXor, InstType.CallQuaternary, HelperFunctionNames.ShuffleXor); Add(Instruction.Sine, InstType.CallUnary, "sin"); Add(Instruction.SquareRoot, InstType.CallUnary, "sqrt"); Add(Instruction.StoreAttribute, InstType.Special); Add(Instruction.StoreLocal, InstType.Special); Add(Instruction.StoreShared, InstType.Special); Add(Instruction.StoreStorage, InstType.Special); Add(Instruction.Subtract, InstType.OpBinary, "-", 2); Add(Instruction.SwizzleAdd, InstType.CallTernary, HelperFunctionNames.SwizzleAdd); Add(Instruction.TextureSample, InstType.Special); Add(Instruction.TextureSize, InstType.Special); Add(Instruction.Truncate, InstType.CallUnary, "trunc"); Add(Instruction.UnpackDouble2x32, InstType.Special); Add(Instruction.UnpackHalf2x16, InstType.Special); Add(Instruction.VoteAll, InstType.CallUnary, "allInvocationsARB"); Add(Instruction.VoteAllEqual, InstType.CallUnary, "allInvocationsEqualARB"); Add(Instruction.VoteAny, InstType.CallUnary, "anyInvocationARB"); } private static void Add(Instruction inst, InstType flags, string opName = null, int precedence = 0) { _infoTbl[(int)inst] = new InstInfo(flags, opName, precedence); } public static InstInfo GetInstructionInfo(Instruction inst) { return _infoTbl[(int)(inst & Instruction.Mask)]; } public static string GetSoureExpr(CodeGenContext context, IAstNode node, VariableType dstType) { return ReinterpretCast(context, node, OperandManager.GetNodeDestType(context, node), dstType); } public static string Enclose(string expr, IAstNode node, Instruction pInst, bool isLhs) { InstInfo pInfo = GetInstructionInfo(pInst); return Enclose(expr, node, pInst, pInfo, isLhs); } public static string Enclose(string expr, IAstNode node, Instruction pInst, InstInfo pInfo, bool isLhs = false) { if (NeedsParenthesis(node, pInst, pInfo, isLhs)) { expr = "(" + expr + ")"; } return expr; } public static bool NeedsParenthesis(IAstNode node, Instruction pInst, InstInfo pInfo, bool isLhs) { // If the node isn't a operation, then it can only be a operand, // and those never needs to be surrounded in parenthesis. if (!(node is AstOperation operation)) { // This is sort of a special case, if this is a negative constant, // and it is consumed by a unary operation, we need to put on the parenthesis, // as in GLSL a sequence like --2 or ~-1 is not valid. if (IsNegativeConst(node) && pInfo.Type == InstType.OpUnary) { return true; } return false; } if ((pInfo.Type & (InstType.Call | InstType.Special)) != 0) { return false; } InstInfo info = _infoTbl[(int)(operation.Inst & Instruction.Mask)]; if ((info.Type & (InstType.Call | InstType.Special)) != 0) { return false; } if (info.Precedence < pInfo.Precedence) { return false; } if (info.Precedence == pInfo.Precedence && isLhs) { return false; } if (pInst == operation.Inst && info.Type == InstType.OpBinaryCom) { return false; } return true; } private static bool IsNegativeConst(IAstNode node) { if (!(node is AstOperand operand)) { return false; } return operand.Type == OperandType.Constant && operand.Value < 0; } } }