blob: 1992cab2fa8583ebb34f4a82ee43826edb7cf0bb (
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
|
#include <mbgl/gl/headless_backend.hpp>
#include <QApplication>
#include <QGLContext>
#include <QGLWidget>
#if QT_VERSION >= 0x050000
#include <QOpenGLContext>
#endif
#include <cassert>
namespace mbgl {
struct QtImpl : public HeadlessBackend::Impl {
void activateContext() final {
widget.makeCurrent();
}
void deactivateContext() final {
widget.doneCurrent();
}
QGLWidget widget;
};
gl::glProc HeadlessBackend::initializeExtension(const char* name) {
#if QT_VERSION >= 0x050000
QOpenGLContext* thisContext = QOpenGLContext::currentContext();
return thisContext->getProcAddress(name);
#else
const QGLContext* thisContext = QGLContext::currentContext();
return reinterpret_cast<mbgl::gl::glProc>(thisContext->getProcAddress(name));
#endif
}
bool HeadlessBackend::hasDisplay() {
return true;
};
void HeadlessBackend::createContext() {
assert(!hasContext());
static const char* argv[] = { "mbgl" };
static int argc = 1;
static auto* app = new QApplication(argc, const_cast<char**>(argv));
Q_UNUSED(app);
impl.reset(new QtImpl);
}
} // namespace mbgl
|
