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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2018, Google Inc.
 *
 * utils.cpp - Miscellaneous utility tests
 */

#include <iostream>
#include <sstream>
#include <string>
#include <vector>

#include <libcamera/geometry.h>

#include "test.h"
#include "utils.h"

using namespace std;
using namespace libcamera;

class UtilsTest : public Test
{
protected:
	int testDirname()
	{
		static const std::vector<std::string> paths = {
			"",
			"///",
			"/bin",
			"/usr/bin",
			"//etc////",
			"//tmp//d//",
			"current_file",
			"./current_file",
			"./current_dir/",
			"current_dir/",
		};

		static const std::vector<std::string> expected = {
			".",
			"/",
			"/",
			"/usr",
			"/",
			"//tmp",
			".",
			".",
			".",
			".",
		};

		std::vector<std::string> results;

		for (const auto &path : paths)
			results.push_back(utils::dirname(path));

		if (results != expected) {
			cerr << "utils::dirname() tests failed" << endl;

			cerr << "expected: " << endl;
			for (const auto &path : expected)
				cerr << "\t" << path << endl;

			cerr << "results: " << endl;
			for (const auto &path : results)
				cerr << "\t" << path << endl;

			return TestFail;
		}

		return TestPass;
	}

	int run()
	{
		/* utils::hex() test. */
		std::ostringstream os;
		std::string ref;

		os << utils::hex(static_cast<int32_t>(0x42)) << " ";
		ref += "0x00000042 ";
		os << utils::hex(static_cast<uint32_t>(0x42)) << " ";
		ref += "0x00000042 ";
		os << utils::hex(static_cast<int64_t>(0x42)) << " ";
		ref += "0x0000000000000042 ";
		os << utils::hex(static_cast<uint64_t>(0x42)) << " ";
		ref += "0x0000000000000042 ";
		os << utils::hex(static_cast<int32_t>(0x42), 4) << " ";
		ref += "0x0042 ";
		os << utils::hex(static_cast<uint32_t>(0x42), 1) << " ";
		ref += "0x42 ";
		os << utils::hex(static_cast<int64_t>(0x42), 4) << " ";
		ref += "0x0042 ";
		os << utils::hex(static_cast<uint64_t>(0x42), 1) << " ";
		ref += "0x42 ";

		std::string s = os.str();
		if (s != ref) {
			cerr << "utils::hex() test failed, expected '" << ref
			     << "', got '" << s << "'";
			return TestFail;
		}

		/* utils::join() and utils::split() test. */
		std::vector<std::string> elements = {
			"/bin",
			"/usr/bin",
			"",
			"",
		};

		std::string path;
		for (const auto &element : elements)
			path += (path.empty() ? "" : ":") + element;

		if (path != utils::join(elements, ":")) {
			cerr << "utils::join() test failed" << endl;
			return TestFail;
		}

		std::vector<std::string> dirs;

		for (const auto &dir : utils::split(path, ":"))
			dirs.push_back(dir);

		if (dirs != elements) {
			cerr << "utils::split() test failed" << endl;
			return TestFail;
		}

		/* utils::join() with conversion function test. */
		std::vector<Size> sizes = { { 0, 0 }, { 100, 100 } };
		s = utils::join(sizes, "/", [](const Size &size) {
					return size.toString();
				});

		if (s != "0x0/100x100") {
			cerr << "utils::join() with conversion test failed" << endl;
			return TestFail;
		}

		/* utils::dirname() tests. */
		if (TestPass != testDirname())
			return TestFail;

		return TestPass;
	}
};

TEST_REGISTER(UtilsTest)
eraLocation(cam.get()) == properties::CameraLocationExternal) { isCameraExternal = true; id = nextExternalCameraId_; } else { id = numInternalCameras_; } } /* * The configuration file must be valid, and contain a corresponding * entry for internal cameras. External cameras can be initialized * without configuration file. */ if (!isCameraExternal && !halConfig_.exists()) { LOG(HAL, Error) << "HAL configuration file is mandatory for internal cameras"; return; } const CameraConfigData *cameraConfigData = halConfig_.cameraConfigData(cam->id()); /* * Some cameras whose location is reported by libcamera as external may * actually be internal to the device. This is common with UVC cameras * that are integrated in a laptop. In that case the real location * should be specified in the configuration file. * * If the camera location is external and a configuration entry exists * for it, override its location. */ if (isCameraNew && isCameraExternal) { if (cameraConfigData && cameraConfigData->facing != -1) { isCameraExternal = false; id = numInternalCameras_; } } if (!isCameraExternal && !cameraConfigData) { LOG(HAL, Error) << "HAL configuration entry for internal camera " << cam->id() << " is missing"; return; } /* Create a CameraDevice instance to wrap the libcamera Camera. */ std::unique_ptr<CameraDevice> camera = CameraDevice::create(id, cam); int ret = camera->initialize(cameraConfigData); if (ret) { LOG(HAL, Error) << "Failed to initialize camera: " << cam->id(); return; } if (isCameraNew) { cameraIdsMap_.emplace(cam->id(), id); if (isCameraExternal) nextExternalCameraId_++; else numInternalCameras_++; } cameras_.emplace_back(std::move(camera)); if (callbacks_) callbacks_->camera_device_status_change(callbacks_, id, CAMERA_DEVICE_STATUS_PRESENT); LOG(HAL, Debug) << "Camera ID: " << id << " added successfully."; } void CameraHalManager::cameraRemoved(std::shared_ptr<Camera> cam) { MutexLocker locker(mutex_); auto iter = std::find_if(cameras_.begin(), cameras_.end(), [&cam](const std::unique_ptr<CameraDevice> &camera) { return cam == camera->camera(); }); if (iter == cameras_.end()) return; /* * CAMERA_DEVICE_STATUS_NOT_PRESENT should be set for external cameras * only. */ unsigned int id = (*iter)->id(); if (id >= firstExternalCameraId_) callbacks_->camera_device_status_change(callbacks_, id, CAMERA_DEVICE_STATUS_NOT_PRESENT); /* * \todo Check if the camera is already open and running. * Inform the framework about its absence before deleting its * reference here. */ cameras_.erase(iter); LOG(HAL, Debug) << "Camera ID: " << id << " removed successfully."; } int32_t CameraHalManager::cameraLocation(const Camera *cam) { const ControlList &properties = cam->properties(); if (!properties.contains(properties::Location)) return -1; return properties.get(properties::Location); } CameraDevice *CameraHalManager::cameraDeviceFromHalId(unsigned int id) { auto iter = std::find_if(cameras_.begin(), cameras_.end(), [id](const std::unique_ptr<CameraDevice> &camera) { return camera->id() == id; }); if (iter == cameras_.end()) return nullptr; return iter->get(); } unsigned int CameraHalManager::numCameras() const { return numInternalCameras_; } int CameraHalManager::getCameraInfo(unsigned int id, struct camera_info *info) { if (!info) return -EINVAL; MutexLocker locker(mutex_); CameraDevice *camera = cameraDeviceFromHalId(id); if (!camera) { LOG(HAL, Error) << "Invalid camera id '" << id << "'"; return -EINVAL; } info->facing = camera->facing(); info->orientation = camera->orientation(); info->device_version = CAMERA_DEVICE_API_VERSION_3_3; info->resource_cost = 0; info->static_camera_characteristics = camera->getStaticMetadata(); info->conflicting_devices = nullptr; info->conflicting_devices_length = 0; return 0; } void CameraHalManager::setCallbacks(const camera_module_callbacks_t *callbacks) { callbacks_ = callbacks; MutexLocker locker(mutex_); /* * Some external cameras may have been identified before the callbacks_ * were set. Iterate all existing external cameras and mark them as * CAMERA_DEVICE_STATUS_PRESENT explicitly. * * Internal cameras are already assumed to be present at module load * time by the Android framework. */ for (const std::unique_ptr<CameraDevice> &camera : cameras_) { unsigned int id = camera->id(); if (id >= firstExternalCameraId_) callbacks_->camera_device_status_change(callbacks_, id, CAMERA_DEVICE_STATUS_PRESENT); } }