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/* 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, &SimpleCapture::requestComplete);
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);
}
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