Move test applications to src/apps/

The cam and qcam test application share code, currently through a crude
hack that references the cam source files directly from the qcam
meson.build file. To prepare for the introduction of hosting that code
in a static library, move all applications to src/apps/.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/apps/lc-compliance/simple_capture.cpp

@@ -0,0 +1,191 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2020-2021, Google Inc.
+ *
+ * simple_capture.cpp - Simple capture helper
+ */
+
+#include <gtest/gtest.h>
+
+#include "simple_capture.h"
+
+using namespace libcamera;
+
+SimpleCapture::SimpleCapture(std::shared_ptr<Camera> camera)
+	: loop_(nullptr), camera_(camera),
+	  allocator_(std::make_unique<FrameBufferAllocator>(camera))
+{
+}
+
+SimpleCapture::~SimpleCapture()
+{
+	stop();
+}
+
+void SimpleCapture::configure(StreamRole role)
+{
+	config_ = camera_->generateConfiguration({ role });
+
+	if (!config_) {
+		std::cout << "Role not supported by camera" << std::endl;
+		GTEST_SKIP();
+	}
+
+	if (config_->validate() != CameraConfiguration::Valid) {
+		config_.reset();
+		FAIL() << "Configuration not valid";
+	}
+
+	if (camera_->configure(config_.get())) {
+		config_.reset();
+		FAIL() << "Failed to configure camera";
+	}
+}
+
+void SimpleCapture::start()
+{
+	Stream *stream = config_->at(0).stream();
+	int count = allocator_->allocate(stream);
+
+	ASSERT_GE(count, 0) << "Failed to allocate buffers";
+	EXPECT_EQ(count, config_->at(0).bufferCount) << "Allocated less buffers than expected";
+
+	camera_->requestCompleted.connect(this, &SimpleCapture::requestComplete);
+
+	ASSERT_EQ(camera_->start(), 0) << "Failed to start camera";
+}
+
+void SimpleCapture::stop()
+{
+	if (!config_ || !allocator_->allocated())
+		return;
+
+	camera_->stop();
+
+	camera_->requestCompleted.disconnect(this);
+
+	Stream *stream = config_->at(0).stream();
+	allocator_->free(stream);
+}
+
+/* SimpleCaptureBalanced */
+
+SimpleCaptureBalanced::SimpleCaptureBalanced(std::shared_ptr<Camera> camera)
+	: SimpleCapture(camera)
+{
+}
+
+void SimpleCaptureBalanced::capture(unsigned int numRequests)
+{
+	start();
+
+	Stream *stream = config_->at(0).stream();
+	const std::vector<std::unique_ptr<FrameBuffer>> &buffers = allocator_->buffers(stream);
+
+	/* No point in testing less requests then the camera depth. */
+	if (buffers.size() > numRequests) {
+		std::cout << "Camera needs " + std::to_string(buffers.size())
+			+ " requests, can't test only "
+			+ std::to_string(numRequests) << std::endl;
+		GTEST_SKIP();
+	}
+
+	queueCount_ = 0;
+	captureCount_ = 0;
+	captureLimit_ = numRequests;
+
+	/* Queue the recommended number of reqeuests. */
+	std::vector<std::unique_ptr<libcamera::Request>> requests;
+	for (const std::unique_ptr<FrameBuffer> &buffer : buffers) {
+		std::unique_ptr<Request> request = camera_->createRequest();
+		ASSERT_TRUE(request) << "Can't create request";
+
+		ASSERT_EQ(request->addBuffer(stream, buffer.get()), 0) << "Can't set buffer for request";
+
+		ASSERT_EQ(queueRequest(request.get()), 0) << "Failed to queue request";
+
+		requests.push_back(std::move(request));
+	}
+
+	/* Run capture session. */
+	loop_ = new EventLoop();
+	loop_->exec();
+	stop();
+	delete loop_;
+
+	ASSERT_EQ(captureCount_, captureLimit_);
+}
+
+int SimpleCaptureBalanced::queueRequest(Request *request)
+{
+	queueCount_++;
+	if (queueCount_ > captureLimit_)
+		return 0;
+
+	return camera_->queueRequest(request);
+}
+
+void SimpleCaptureBalanced::requestComplete(Request *request)
+{
+	captureCount_++;
+	if (captureCount_ >= captureLimit_) {
+		loop_->exit(0);
+		return;
+	}
+
+	request->reuse(Request::ReuseBuffers);
+	if (queueRequest(request))
+		loop_->exit(-EINVAL);
+}
+
+/* SimpleCaptureUnbalanced */
+
+SimpleCaptureUnbalanced::SimpleCaptureUnbalanced(std::shared_ptr<Camera> camera)
+	: SimpleCapture(camera)
+{
+}
+
+void SimpleCaptureUnbalanced::capture(unsigned int numRequests)
+{
+	start();
+
+	Stream *stream = config_->at(0).stream();
+	const std::vector<std::unique_ptr<FrameBuffer>> &buffers = allocator_->buffers(stream);
+
+	captureCount_ = 0;
+	captureLimit_ = numRequests;
+
+	/* Queue the recommended number of reqeuests. */
+	std::vector<std::unique_ptr<libcamera::Request>> requests;
+	for (const std::unique_ptr<FrameBuffer> &buffer : buffers) {
+		std::unique_ptr<Request> request = camera_->createRequest();
+		ASSERT_TRUE(request) << "Can't create request";
+
+		ASSERT_EQ(request->addBuffer(stream, buffer.get()), 0) << "Can't set buffer for request";
+
+		ASSERT_EQ(camera_->queueRequest(request.get()), 0) << "Failed to queue request";
+
+		requests.push_back(std::move(request));
+	}
+
+	/* Run capture session. */
+	loop_ = new EventLoop();
+	int status = loop_->exec();
+	stop();
+	delete loop_;
+
+	ASSERT_EQ(status, 0);
+}
+
+void SimpleCaptureUnbalanced::requestComplete(Request *request)
+{
+	captureCount_++;
+	if (captureCount_ >= captureLimit_) {
+		loop_->exit(0);
+		return;
+	}
+
+	request->reuse(Request::ReuseBuffers);
+	if (camera_->queueRequest(request))
+		loop_->exit(-EINVAL);
+}