Ejemplo n.º 1
0
 public ExpressionHLSLWriter(ShaderModel shader, string expressionName)
 {
     Shader         = shader;
     ExpressionName = expressionName;
     Ctab           = shader.ConstantTable;
     Cli            = shader.Cli;
 }
Ejemplo n.º 2
0
        private string FormatOperand(ConstantTable ctab, CliToken cli, FxlcOperandType type, uint index)
        {
            var elementIndex   = index / 4;
            var componentIndex = index % 4;
            var component      = FormatComponent(componentIndex, ComponentCount);

            switch (type)
            {
            case FxlcOperandType.Literal:
                var literal = string.Join(", ",
                                          Enumerable.Repeat(cli.GetLiteral(index), (int)ComponentCount));
                return(string.Format("({0})", literal));

            case FxlcOperandType.Temp:
                return(string.Format("r{0}{1}", elementIndex, component));

            case FxlcOperandType.Variable:
                return(string.Format("c{0}{1}", elementIndex, component));

            case FxlcOperandType.Expr:
                return(string.Format("c{0}{1}", elementIndex, component));

            default:
                return(string.Format("unknown{0}{1}", elementIndex, component));
            }
        }
Ejemplo n.º 3
0
        public string ToString(ConstantTable ctab, CliToken cli)
        {
            var operands = string.Join(", ", Operands.Select(o => o.FormatOperand(ctab, cli)));

            return(string.Format("{0} {1}",
                                 Opcode.ToString().ToLowerInvariant(),
                                 operands));
        }
Ejemplo n.º 4
0
 /// <summary>
 /// Format operand for FX9 preshaders
 /// </summary>
 /// <param name="ctab"></param>
 /// <param name="cli"></param>
 /// <returns></returns>
 public string FormatOperand(ConstantTable ctab, CliToken cli)
 {
     if (IsArray == 0)
     {
         return(FormatOperand(ctab, cli, OpType, OpIndex));
     }
     else
     {
         return(string.Format("{0}[{1}]",
                              FormatOperand(ctab, cli, ArrayType, ArrayIndex),
                              FormatOperand(ctab, cli, OpType, OpIndex)));
     }
 }
Ejemplo n.º 5
0
        Token ReadInstruction(BytecodeReader reader)
        {
            uint   instructionToken = reader.ReadUInt32();
            Opcode opcode           = (Opcode)(instructionToken & 0xffff);
            int    size;

            if (opcode == Opcode.Comment)
            {
                size = (int)((instructionToken >> 16) & 0x7FFF);
            }
            else
            {
                size = (int)((instructionToken >> 24) & 0x0f);
            }
            Token token = null;

            if (opcode == Opcode.Comment)
            {
                var fourCC = reader.ReadUInt32();
                if (KnownCommentTypes.ContainsKey(fourCC))
                {
                    var commentReader = reader.CopyAtCurrentPosition();
                    reader.ReadBytes(size * 4 - 4);
                    switch (KnownCommentTypes[fourCC])
                    {
                    case CommentType.CTAB:
                        ConstantTable = ConstantTable.Parse(commentReader);
                        return(null);

                    case CommentType.C**T:
                        Cli = CliToken.Parse(commentReader);
                        return(null);

                    case CommentType.FXLC:
                        Fxlc = FxlcBlock.Parse(commentReader);
                        return(null);

                    case CommentType.PRES:
                        Preshader = Preshader.Parse(commentReader);
                        return(null);

                    case CommentType.PRSI:
                        Prsi = PrsiToken.Parse(commentReader);
                        return(null);
                    }
                }
                token         = new CommentToken(opcode, size, this);
                token.Data[0] = fourCC;
                for (int i = 1; i < size; i++)
                {
                    token.Data[i] = reader.ReadUInt32();
                }
            }
            else
            {
                token = new InstructionToken(opcode, size, this);
                var inst = token as InstructionToken;

                for (int i = 0; i < size; i++)
                {
                    token.Data[i] = reader.ReadUInt32();
                    if (opcode == Opcode.Def || opcode == Opcode.DefB || opcode == Opcode.DefI)
                    {
                        if (i == 0)
                        {
                            inst.Operands.Add(new DestinationOperand(token.Data[i]));
                        }
                    }
                    else if (opcode == Opcode.Dcl)
                    {
                        if (i == 0)
                        {
                            inst.Operands.Add(new DeclarationOperand(token.Data[i]));
                        }
                        else
                        {
                            inst.Operands.Add(new DestinationOperand(token.Data[i]));
                        }
                    }
                    else if (i == 0 && opcode.HasDestination())
                    {
                        if ((token.Data[i] & (1 << 13)) != 0)
                        {
                            //Relative Address mode
                            token.Data[i + 1] = reader.ReadUInt32();
                            inst.Operands.Add(new DestinationOperand(token.Data[i], token.Data[i + 1]));
                            i++;
                        }
                        else
                        {
                            inst.Operands.Add(new DestinationOperand(token.Data[i]));
                        }
                    }
                    else if ((token.Data[i] & (1 << 13)) != 0)
                    {
                        //Relative Address mode
                        token.Data[i + 1] = reader.ReadUInt32();
                        inst.Operands.Add(new SourceOperand(token.Data[i], token.Data[i + 1]));
                        i++;
                    }
                    else
                    {
                        inst.Operands.Add(new SourceOperand(token.Data[i]));
                    }
                }
                if (opcode != Opcode.Comment)
                {
                    token.Modifier   = (int)((instructionToken >> 16) & 0xff);
                    token.Predicated = (instructionToken & 0x10000000) != 0;
                    token.CoIssue    = (instructionToken & 0x40000000) != 0;
                    Debug.Assert((instructionToken & 0xA0000000) == 0, $"Instruction has unexpected bits set {instructionToken & 0xE0000000}");
                }
            }
            return(token);
        }