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#include <mbgl/map/backend.hpp>
#include <mbgl/map/backend_scope.hpp>
#include <mbgl/gl/context.hpp>
#include <mbgl/gl/extension.hpp>
#include <mbgl/gl/debugging.hpp>
#include <cassert>
namespace mbgl {
Backend::Backend() = default;
gl::Context& Backend::getContext() {
assert(BackendScope::exists());
std::call_once(initialized, [this] {
context = std::make_unique<gl::Context>();
context->enableDebugging();
context->initializeExtensions(
std::bind(&Backend::initializeExtension, this, std::placeholders::_1));
});
return *context;
}
Backend::~Backend() = default;
} // namespace mbgl
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