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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2020, Google Inc.
*
* libcamera internal MappedBuffer tests
*/
#include <iostream>
#include "libcamera/internal/buffer.h"
#include "camera_test.h"
#include "test.h"
using namespace std;
namespace {
class MappedBufferTest : public CameraTest, public Test
{
public:
MappedBufferTest()
: CameraTest("platform/vimc.0 Sensor B")
{
}
protected:
int init() override
{
if (status_ != TestPass)
return status_;
config_ = camera_->generateConfiguration({ StreamRole::VideoRecording });
if (!config_ || config_->size() != 1) {
cout << "Failed to generate default configuration" << endl;
return TestFail;
}
allocator_ = new FrameBufferAllocator(camera_);
StreamConfiguration &cfg = config_->at(0);
if (camera_->acquire()) {
cout << "Failed to acquire the camera" << endl;
return TestFail;
}
if (camera_->configure(config_.get())) {
cout << "Failed to set default configuration" << endl;
return TestFail;
}
stream_ = cfg.stream();
int ret = allocator_->allocate(stream_);
if (ret < 0)
return TestFail;
return TestPass;
}
void cleanup() override
{
delete allocator_;
}
int run() override
{
const std::unique_ptr<FrameBuffer> &buffer = allocator_->buffers(stream_).front();
std::vector<MappedBuffer> maps;
MappedFrameBuffer map(buffer.get(), PROT_READ);
if (!map.isValid()) {
cout << "Failed to successfully map buffer" << endl;
return TestFail;
}
/* Make sure we can move it. */
maps.emplace_back(std::move(map));
/* But copying is prevented, it would cause double-unmap. */
// MappedFrameBuffer map_copy = map;
/* Local map should be invalid (after move). */
if (map.isValid()) {
cout << "Post-move map should not be valid" << endl;
return TestFail;
}
/* Test for multiple successful maps on the same buffer. */
MappedFrameBuffer write_map(buffer.get(), PROT_WRITE);
if (!write_map.isValid()) {
cout << "Failed to map write buffer" << endl;
return TestFail;
}
MappedFrameBuffer rw_map(buffer.get(), PROT_READ | PROT_WRITE);
if (!rw_map.isValid()) {
cout << "Failed to map RW buffer" << endl;
return TestFail;
}
return TestPass;
}
private:
std::unique_ptr<CameraConfiguration> config_;
FrameBufferAllocator *allocator_;
Stream *stream_;
};
} /* namespace */
TEST_REGISTER(MappedBufferTest);
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