[libcamera-devel] [PATCH v4 3/5] lc-compliance: Add Environment singleton

[Nícolas F. R. A. Prado]

Add a singleton Environment class in order to make the camera available
inside all tests. This is needed for the Googletest refactor, otherwise
the tests, which are statically declared, won't be able to access the
camera.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
---
Added in v4

 src/lc-compliance/environment.cpp | 35 +++++++++++++++++++++++++++++++
 src/lc-compliance/environment.h   | 31 +++++++++++++++++++++++++++
 src/lc-compliance/meson.build     |  1 +
 3 files changed, 67 insertions(+)
 create mode 100644 src/lc-compliance/environment.cpp
 create mode 100644 src/lc-compliance/environment.h

diff --git a/src/lc-compliance/environment.cpp b/src/lc-compliance/environment.cpp
new file mode 100644
index 000000000000..de7fa5bbadd1
--- /dev/null
+++ b/src/lc-compliance/environment.cpp
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2021, Collabora Ltd.
+ *
+ * environment.cpp - Common environment for tests
+ */
+
+#include "environment.h"
+
+Environment *Environment::instance_ = nullptr;
+std::shared_ptr<Camera> Environment::camera_ = nullptr;
+
+bool Environment::create(std::shared_ptr<Camera> camera)
+{
+	if (instance_)
+		return false;
+
+	camera_ = camera;
+	instance_ = new Environment;
+	return true;
+}
+
+void Environment::destroy()
+{
+	if (!camera_)
+		return;
+
+	camera_->release();
+	camera_.reset();
+}
+
+Environment *Environment::instance()
+{
+	return instance_;
+}
diff --git a/src/lc-compliance/environment.h b/src/lc-compliance/environment.h
new file mode 100644
index 000000000000..f4832d371b6c
--- /dev/null
+++ b/src/lc-compliance/environment.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2021, Collabora Ltd.
+ *
+ * environment.h - Common environment for tests
+ */
+#ifndef __LC_COMPLIANCE_ENVIRONMENT_H__
+#define __LC_COMPLIANCE_ENVIRONMENT_H__
+
+#include <libcamera/libcamera.h>
+
+using namespace libcamera;
+
+class Environment
+{
+public:
+	static bool create(std::shared_ptr<Camera> camera);
+	void destroy();
+
+	static Environment *instance();
+
+	std::shared_ptr<Camera> camera() const { return camera_; }
+
+private:
+	Environment() {};
+
+	static Environment *instance_;
+	static std::shared_ptr<Camera> camera_;
+};
+
+#endif /* __LC_COMPLIANCE_ENVIRONMENT_H__ */
diff --git a/src/lc-compliance/meson.build b/src/lc-compliance/meson.build
index a2bfcceb1259..c287017575bd 100644
--- a/src/lc-compliance/meson.build
+++ b/src/lc-compliance/meson.build
@@ -14,6 +14,7 @@ lc_compliance_sources = files([
     '../cam/options.cpp',
     'main.cpp',
     'results.cpp',
+    'environment.cpp',
     'simple_capture.cpp',
     'single_stream.cpp',
 ])
-- 
2.31.1