blob: 2fef321d85eadc64eaa57e0e2aa92d8851c3feb7 (
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
|
#pragma once
#include <mbgl/gl/implementation.hpp>
#include <mbgl/gl/extension.hpp>
#include <mbgl/map/backend.hpp>
#include <memory>
#include <functional>
namespace mbgl {
class HeadlessDisplay;
class HeadlessBackend : public Backend {
public:
HeadlessBackend();
HeadlessBackend(std::shared_ptr<HeadlessDisplay>);
~HeadlessBackend() override;
void invalidate() override;
void activate() override;
void deactivate() override;
void notifyMapChange(MapChange) override;
void setMapChangeCallback(std::function<void(MapChange)>&& cb) { mapChangeCallback = std::move(cb); }
struct Impl {
virtual ~Impl() {}
virtual void activateContext() = 0;
virtual void deactivateContext() {}
};
private:
// Implementation specific functions
static gl::glProc initializeExtension(const char*);
bool hasContext() const { return bool(impl); }
bool hasDisplay();
void createContext();
private:
void destroyContext();
void activateContext();
void deactivateContext();
std::unique_ptr<Impl> impl;
std::shared_ptr<HeadlessDisplay> display;
bool extensionsLoaded = false;
bool active = false;
std::function<void(MapChange)> mapChangeCallback;
};
} // namespace mbgl
|