blob: 4c3080ff25940210d64e154043924a907b7cbffa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_WRITER_SPIRV_OPERAND_H_
#define SRC_TINT_WRITER_SPIRV_OPERAND_H_
#include <cstdint>
#include <string>
#include <vector>
namespace tint::writer::spirv {
/// A single SPIR-V instruction operand
class Operand {
public:
/// The kind of the operand
// Note, the `kInt` will cover most cases as things like IDs in SPIR-V are
// just ints for the purpose of converting to binary.
enum class Kind { kInt = 0, kFloat, kString };
/// Creates a float operand
/// @param val the float value
/// @returns the operand
static Operand Float(float val);
/// Creates an int operand
/// @param val the int value
/// @returns the operand
static Operand Int(uint32_t val);
/// Creates a string operand
/// @param val the string value
/// @returns the operand
static Operand String(const std::string& val);
/// Constructor
/// @param kind the type of operand
explicit Operand(Kind kind);
/// Copy Constructor
Operand(const Operand&) = default;
~Operand();
/// Copy assignment
/// @param b the operand to copy
/// @returns a copy of this operand
Operand& operator=(const Operand& b) = default;
/// Sets the float value
/// @param val the value to set
void set_float(float val) { float_val_ = val; }
/// Sets the int value
/// @param val the value to set
void set_int(uint32_t val) { int_val_ = val; }
/// Sets the string value
/// @param val the value to set
void set_string(const std::string& val) { str_val_ = val; }
/// @returns true if this is a float operand
bool IsFloat() const { return kind_ == Kind::kFloat; }
/// @returns true if this is an integer operand
bool IsInt() const { return kind_ == Kind::kInt; }
/// @returns true if this is a string operand
bool IsString() const { return kind_ == Kind::kString; }
/// @returns the number of uint32_t's needed for this operand
uint32_t length() const;
/// @returns the float value
float to_f() const { return float_val_; }
/// @returns the int value
uint32_t to_i() const { return int_val_; }
/// @returns the string value
const std::string& to_s() const { return str_val_; }
private:
Kind kind_ = Kind::kInt;
float float_val_ = 0.0;
uint32_t int_val_ = 0;
std::string str_val_;
};
/// A list of operands
using OperandList = std::vector<Operand>;
} // namespace tint::writer::spirv
#endif // SRC_TINT_WRITER_SPIRV_OPERAND_H_
|
