video: add support for camera modules

Issue: #910

1 files changed, 66 insertions, 0 deletions

diff --git a/video/camera.cpp b/video/camera.cpp
new file mode 100644
index 00000000..c33ab13a
--- /dev/null
+++ b/video/camera.cpp
@@ -0,0 +1,66 @@
+#include "camera.hpp"
+
+#include <algorithm>
+#include <utility>
+#include <QMutex>
+
+static std::vector<std::unique_ptr<video::impl::camera_>> metadata;
+static QMutex mtx;
+
+namespace video::impl {
+
+camera_::camera_() = default;
+camera_::~camera_() = default;
+
+camera::camera() = default;
+camera::~camera() = default;
+
+void register_camera(std::unique_ptr<impl::camera_> camera)
+{
+    QMutexLocker l(&mtx);
+    metadata.push_back(std::move(camera));
+}
+
+} // ns video::impl
+
+namespace video {
+
+bool show_dialog(const QString& camera_name)
+{
+    QMutexLocker l(&mtx);
+
+    for (auto& camera : metadata)
+        for (const QString& name : camera->camera_names())
+            if (name == camera_name)
+                return camera->show_dialog(camera_name);
+
+    return false;
+}
+
+std::unique_ptr<camera_impl> make_camera(const QString& name)
+{
+    QMutexLocker l(&mtx);
+
+    for (auto& camera : metadata)
+        for (const QString& name_ : camera->camera_names())
+            if (name_ == name)
+                return camera->make_camera(name);
+
+    return nullptr;
+}
+
+std::vector<QString> camera_names()
+{
+    QMutexLocker l(&mtx);
+    std::vector<QString> names; names.reserve(32);
+
+    for (auto& camera : metadata)
+        for (const QString& name : camera->camera_names())
+            if (std::find(names.cbegin(), names.cend(), name) == names.cend())
+                names.push_back(name);
+
+    std::sort(names.begin(), names.end());
+    return names;
+}
+
+} // ns video