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author | John Firebaugh <john.firebaugh@gmail.com> | 2017-02-17 10:57:21 -0800 |
---|---|---|
committer | John Firebaugh <john.firebaugh@gmail.com> | 2017-02-20 12:04:21 -0800 |
commit | 694159c49ebc15e0d6e92addc31f65b623dbe1f9 (patch) | |
tree | a98305c85769b4ff16fdf441adeb337e91780bc0 | |
parent | 3ef9e26593bfda1f32bc15d29016d9bb83acb67c (diff) | |
download | qtlocation-mapboxgl-694159c49ebc15e0d6e92addc31f65b623dbe1f9.tar.gz |
[core] Nestable BackendScope
-rw-r--r-- | cmake/core-files.cmake | 2 | ||||
-rw-r--r-- | include/mbgl/map/backend.hpp | 14 | ||||
-rw-r--r-- | include/mbgl/map/backend_scope.hpp | 17 | ||||
-rwxr-xr-x | platform/android/src/native_map_view.cpp | 1 | ||||
-rw-r--r-- | src/mbgl/map/backend_scope.cpp | 26 | ||||
-rw-r--r-- | src/mbgl/map/map.cpp | 1 |
6 files changed, 47 insertions, 14 deletions
diff --git a/cmake/core-files.cmake b/cmake/core-files.cmake index 2696d2bf3e..5173b92c05 100644 --- a/cmake/core-files.cmake +++ b/cmake/core-files.cmake @@ -104,11 +104,13 @@ set(MBGL_CORE_FILES # map include/mbgl/map/backend.hpp + include/mbgl/map/backend_scope.hpp include/mbgl/map/camera.hpp include/mbgl/map/map.hpp include/mbgl/map/mode.hpp include/mbgl/map/view.hpp src/mbgl/map/backend.cpp + src/mbgl/map/backend_scope.cpp src/mbgl/map/change.hpp src/mbgl/map/map.cpp src/mbgl/map/transform.cpp diff --git a/include/mbgl/map/backend.hpp b/include/mbgl/map/backend.hpp index 0468449155..a7c78cf03d 100644 --- a/include/mbgl/map/backend.hpp +++ b/include/mbgl/map/backend.hpp @@ -47,18 +47,4 @@ private: friend class BackendScope; }; -class BackendScope { -public: - BackendScope(Backend& backend_) : backend(backend_) { - backend.activate(); - } - - ~BackendScope() { - backend.deactivate(); - } - -private: - Backend& backend; -}; - } // namespace mbgl diff --git a/include/mbgl/map/backend_scope.hpp b/include/mbgl/map/backend_scope.hpp new file mode 100644 index 0000000000..c13fb88ded --- /dev/null +++ b/include/mbgl/map/backend_scope.hpp @@ -0,0 +1,17 @@ +#pragma once + +namespace mbgl { + +class Backend; + +class BackendScope { +public: + BackendScope(Backend&); + ~BackendScope(); + +private: + Backend* priorBackend; + Backend& backend; +}; + +} // namespace mbgl diff --git a/platform/android/src/native_map_view.cpp b/platform/android/src/native_map_view.cpp index 22711f1547..b36b477f2f 100755 --- a/platform/android/src/native_map_view.cpp +++ b/platform/android/src/native_map_view.cpp @@ -16,6 +16,7 @@ #include <mbgl/util/logging.hpp> #include <mbgl/gl/extension.hpp> #include <mbgl/gl/context.hpp> +#include <mbgl/map/backend_scope.hpp> #include <mbgl/util/constants.hpp> #include <mbgl/util/image.hpp> #include <mbgl/util/shared_thread_pool.hpp> diff --git a/src/mbgl/map/backend_scope.cpp b/src/mbgl/map/backend_scope.cpp new file mode 100644 index 0000000000..302dfd70cf --- /dev/null +++ b/src/mbgl/map/backend_scope.cpp @@ -0,0 +1,26 @@ +#include <mbgl/map/backend_scope.hpp> +#include <mbgl/map/backend.hpp> +#include <mbgl/util/thread_local.hpp> + +namespace mbgl { + +static util::ThreadLocal<Backend> currentBackend; + +BackendScope::BackendScope(Backend& backend_) + : priorBackend(currentBackend.get()), + backend(backend_) { + backend.activate(); + currentBackend.set(&backend); +} + +BackendScope::~BackendScope() { + if (priorBackend) { + priorBackend->activate(); + currentBackend.set(priorBackend); + } else { + backend.deactivate(); + currentBackend.set(nullptr); + } +} + +} // namespace mbgl diff --git a/src/mbgl/map/map.cpp b/src/mbgl/map/map.cpp index 2837a95bc5..82c0a5f901 100644 --- a/src/mbgl/map/map.cpp +++ b/src/mbgl/map/map.cpp @@ -2,6 +2,7 @@ #include <mbgl/map/camera.hpp> #include <mbgl/map/view.hpp> #include <mbgl/map/backend.hpp> +#include <mbgl/map/backend_scope.hpp> #include <mbgl/map/transform.hpp> #include <mbgl/map/transform_state.hpp> #include <mbgl/annotation/annotation_manager.hpp> |