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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2020-2021, Google Inc.
*
* Simple capture helper
*/
#include "capture.h"
#include <assert.h>
#include <gtest/gtest.h>
using namespace libcamera;
Capture::Capture(std::shared_ptr<Camera> camera)
: camera_(std::move(camera)), allocator_(camera_)
{
}
Capture::~Capture()
{
stop();
}
void Capture::configure(StreamRole role)
{
config_ = camera_->generateConfiguration({ role });
if (!config_)
GTEST_SKIP() << "Role not supported by camera";
if (config_->validate() != CameraConfiguration::Valid) {
config_.reset();
FAIL() << "Configuration not valid";
}
if (camera_->configure(config_.get())) {
config_.reset();
FAIL() << "Failed to configure camera";
}
}
void Capture::run(unsigned int captureLimit, std::optional<unsigned int> queueLimit)
{
assert(!queueLimit || captureLimit <= *queueLimit);
captureLimit_ = captureLimit;
queueLimit_ = queueLimit;
captureCount_ = queueCount_ = 0;
EventLoop loop;
loop_ = &loop;
start();
for (const auto &request : requests_)
queueRequest(request.get());
EXPECT_EQ(loop_->exec(), 0);
stop();
EXPECT_LE(captureLimit_, captureCount_);
EXPECT_LE(captureCount_, queueCount_);
EXPECT_TRUE(!queueLimit_ || queueCount_ <= *queueLimit_);
}
int Capture::queueRequest(libcamera::Request *request)
{
if (queueLimit_ && queueCount_ >= *queueLimit_)
return 0;
int ret = camera_->queueRequest(request);
if (ret < 0)
return ret;
queueCount_ += 1;
return 0;
}
void Capture::requestComplete(Request *request)
{
captureCount_++;
if (captureCount_ >= captureLimit_) {
loop_->exit(0);
return;
}
EXPECT_EQ(request->status(), Request::Status::RequestComplete)
<< "Request didn't complete successfully";
request->reuse(Request::ReuseBuffers);
if (queueRequest(request))
loop_->exit(-EINVAL);
}
void Capture::start()
{
assert(config_);
assert(!config_->empty());
assert(!allocator_.allocated());
assert(requests_.empty());
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";
const std::vector<std::unique_ptr<FrameBuffer>> &buffers = allocator_.buffers(stream);
/* No point in testing less requests then the camera depth. */
if (queueLimit_ && *queueLimit_ < buffers.size()) {
GTEST_SKIP() << "Camera needs " << buffers.size()
<< " requests, can't test only " << *queueLimit_;
}
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";
requests_.push_back(std::move(request));
}
camera_->requestCompleted.connect(this, &Capture::requestComplete);
ASSERT_EQ(camera_->start(), 0) << "Failed to start camera";
}
void Capture::stop()
{
if (!config_ || !allocator_.allocated())
return;
camera_->stop();
camera_->requestCompleted.disconnect(this);
Stream *stream = config_->at(0).stream();
requests_.clear();
allocator_.free(stream);
}
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