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121fccd2ab
- removed dummy UClasses (no longer needed) - removed file header comments (not used) - removed duplicated function documentation in cpp files - documentation cleanup, punctuation, spelling etc. - pragma once include guards (now work on all platforms) - relative public includes (are auto-discovered by UBT) - fixed too many/too few line breaks - deleted empty files - missing override - NULL to nullptr [CL 2305058 by Max Preussner in Main branch]
149 lines
2.8 KiB
C++
149 lines
2.8 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Core.h"
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namespace VectorVM
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{
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/** Constants. */
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enum
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{
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NumTempRegisters = 100,
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MaxInputRegisters = 100,
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MaxOutputRegisters = MaxInputRegisters,
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MaxConstants = 256,
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FirstInputRegister = NumTempRegisters,
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FirstOutputRegister = FirstInputRegister + MaxInputRegisters,
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FirstConstantRegister = FirstOutputRegister + MaxOutputRegisters,
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MaxRegisters = NumTempRegisters + MaxInputRegisters + MaxOutputRegisters + MaxConstants
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};
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/** List of opcodes supported by the VM. */
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namespace EOp
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{
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enum Type
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{
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done = 0,
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add = 1,
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sub = 3,
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mul = 5,
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mad = 7,
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lerp = 13,
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rcp = 18,
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rsq = 19,
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sqrt = 20,
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neg = 21,
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abs = 22,
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exp = 23,
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exp2 = 24,
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log = 25,
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log2 = 26,
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sin = 27,
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cos = 29,
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tan = 30,
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asin = 31,
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acos = 32,
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atan = 33,
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atan2 = 34,
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ceil = 35,
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floor = 36,
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fmod = 37,
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frac = 38,
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trunc = 39,
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clamp = 40,
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min = 44,
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max = 46,
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pow = 48,
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sign = 50,
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step = 51,
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dot = 54,
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cross = 55,
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normalize = 57,
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random = 58,
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length = 59,
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sin4 = 61,
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noise = 66,
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NumOpcodes
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};
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} // namespace EOp
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/** Operand sources. */
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namespace EOpSrc
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{
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enum Type
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{
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Invalid,
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Register,
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Const
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};
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}
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namespace EOpFlags
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{
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enum
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{
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None = 0x0,
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Implemented = 0x1,
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Commutative = 0x2
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};
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}
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/** Struct used to give info on particular op codes */
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struct VECTORVM_API FVectorVMOpInfo
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{
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/** Base opcode. */
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EOp::Type BaseOpcode;
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/** Flags. */
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uint8 Flags;
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/** Source operands. */
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EOpSrc::Type SrcTypes[3];
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/** Friendly name of op-code */
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FString FriendlyName;
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/** Constructor */
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FVectorVMOpInfo(
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EOp::Type InBaseOpcode = EOp::done,
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uint8 InFlags = EOpFlags::None,
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EOpSrc::Type Src0 = EOpSrc::Type::Invalid,
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EOpSrc::Type Src1 = EOpSrc::Type::Invalid,
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EOpSrc::Type Src2 = EOpSrc::Type::Invalid,
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const FString& InFriendlyName = TEXT("Undefined Opcode")
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)
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: BaseOpcode(InBaseOpcode)
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, Flags(InFlags)
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, FriendlyName(InFriendlyName)
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{
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SrcTypes[0] = Src0;
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SrcTypes[1] = Src1;
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SrcTypes[2] = Src2;
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}
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FORCEINLINE bool IsImplemented() const { return (Flags & EOpFlags::Implemented) != 0; }
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FORCEINLINE bool IsCommutative() const { return (Flags & EOpFlags::Commutative) != 0; }
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};
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/** Get info on a particular op-code */
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VECTORVM_API FVectorVMOpInfo const& GetOpCodeInfo(uint8 OpCodeIndex);
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/** Get total number of op-codes */
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VECTORVM_API uint8 GetNumOpCodes();
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/**
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* Execute VectorVM bytecode.
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*/
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VECTORVM_API void Exec(
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uint8 const* Code,
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VectorRegister** InputRegisters,
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int32 NumInputRegisters,
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VectorRegister** OutputRegisters,
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int32 NumOutputRegisters,
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FVector4 const* ConstantTable,
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int32 NumVectors
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);
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VECTORVM_API void Init();
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} // namespace VectorVM
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