blob: eed63dfcbacb58294af267fb7dca63dad0662223 (
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
|
#pragma once
#include <cstdint>
#include <cstdlib>
#include <memory>
namespace mbgl {
namespace gfx {
class Backend {
public:
enum class Type : uint8_t {
OpenGL,
};
static constexpr Type DefaultType = Type::OpenGL;
static void SetType(const Type value) {
if (Value(value) != value) {
abort(); // SetType must be called prior to any GetType calls.
}
}
static Type GetType() {
return Value(DefaultType);
}
template <typename T, typename... Args>
static std::unique_ptr<T> Create(Args... args) {
return Create<Type::OpenGL, T, Args...>(std::forward<Args>(args)...);
}
private:
template <Type, typename T, typename... Args>
static std::unique_ptr<T> Create(Args...);
static Type Value(Type value) {
static const Type type = value;
return type;
}
};
} // namespace gfx
} // namespace mbgl
|