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#pragma once
namespace mbgl {
class RendererBackend;
namespace gfx {
class BackendScope {
public:
// There are two types of scopes: Creating an "Implicit" scope tells Mapbox GL that the
// supporting windowing system has already activated the GL Backend and that no further actions
// are required. Creating an "Explicit" scope actually enables the GL Backend, and disables it
// when the BackendScope is destroyed.
enum class ScopeType : bool {
Implicit,
Explicit,
};
BackendScope(RendererBackend&, ScopeType = ScopeType::Explicit);
~BackendScope();
// Returns true when there is currently a BackendScope active in this thread.
static bool exists();
private:
void activate();
void deactivate();
BackendScope* priorScope;
BackendScope* nextScope;
RendererBackend& backend;
const ScopeType scopeType;
bool activated = false;
};
} // namespace gfx
} // namespace mbgl
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