summaryrefslogtreecommitdiff
path: root/platform/default/include/mbgl/gl/headless_frontend.hpp
blob: d32c2e77688c39da0211832c3bc4bf6df6a87884 (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
#pragma once

#include <mbgl/map/camera.hpp>
#include <mbgl/renderer/mode.hpp>
#include <mbgl/renderer/renderer_frontend.hpp>
#include <mbgl/gl/headless_backend.hpp>
#include <mbgl/util/async_task.hpp>
#include <mbgl/util/optional.hpp>

#include <memory>

namespace mbgl {

class FileSource;
class Renderer;
class RendererBackend;
class Map;
class TransformState;

class HeadlessFrontend : public RendererFrontend {
public:
    HeadlessFrontend(float pixelRatio_, FileSource&, const optional<std::string> programCacheDir = {}, GLContextMode mode = GLContextMode::Unique, const optional<std::string> localFontFamily = {});
    HeadlessFrontend(Size, float pixelRatio_, FileSource&, const optional<std::string> programCacheDir = {}, GLContextMode mode = GLContextMode::Unique, const optional<std::string> localFontFamily = {});
    ~HeadlessFrontend() override;

    void reset() override;
    void update(std::shared_ptr<UpdateParameters>) override;
    void setObserver(RendererObserver&) override;

    Size getSize() const;
    void setSize(Size);

    Renderer* getRenderer();
    RendererBackend* getBackend();
    CameraOptions getCameraOptions();

    bool hasImage(const std::string&);
    bool hasLayer(const std::string&);
    bool hasSource(const std::string&);

    ScreenCoordinate pixelForLatLng(const LatLng&);
    LatLng latLngForPixel(const ScreenCoordinate&);

    PremultipliedImage readStillImage();
    PremultipliedImage render(Map&);

    optional<TransformState> getTransformState() const;

private:
    Size size;
    float pixelRatio;

    HeadlessBackend backend;
    util::AsyncTask asyncInvalidate;

    std::unique_ptr<Renderer> renderer;
    std::shared_ptr<UpdateParameters> updateParameters;
};

} // namespace mbgl