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+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * ipa_wrappers_test.cpp - Test the IPA interface and context wrappers
+ */
+
+#include <fcntl.h>
+#include <iostream>
+#include <memory>
+#include <linux/videodev2.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <libcamera/controls.h>
+#include <libipa/ipa_interface_wrapper.h>
+
+#include "device_enumerator.h"
+#include "ipa_context_wrapper.h"
+#include "media_device.h"
+#include "utils.h"
+#include "v4l2_subdevice.h"
+
+#include "test.h"
+
+using namespace libcamera;
+using namespace std;
+
+enum Operation {
+ Op_init,
+ Op_configure,
+ Op_mapBuffers,
+ Op_unmapBuffers,
+ Op_processEvent,
+};
+
+class TestIPAInterface : public IPAInterface
+{
+public:
+ TestIPAInterface()
+ : sequence_(0)
+ {
+ }
+
+ int init() override
+ {
+ report(Op_init, TestPass);
+ return 0;
+ }
+
+ void configure(const std::map<unsigned int, IPAStream> &streamConfig,
+ const std::map<unsigned int, const ControlInfoMap &> &entityControls) override
+ {
+ /* Verify streamConfig. */
+ if (streamConfig.size() != 2) {
+ cerr << "configure(): Invalid number of streams "
+ << streamConfig.size() << endl;
+ return report(Op_configure, TestFail);
+ }
+
+ auto iter = streamConfig.find(1);
+ if (iter == streamConfig.end()) {
+ cerr << "configure(): No configuration for stream 1" << endl;
+ return report(Op_configure, TestFail);
+ }
+ const IPAStream *stream = &iter->second;
+ if (stream->pixelFormat != V4L2_PIX_FMT_YUYV ||
+ stream->size != Size{ 1024, 768 }) {
+ cerr << "configure(): Invalid configuration for stream 1" << endl;
+ return report(Op_configure, TestFail);
+ }
+
+ iter = streamConfig.find(2);
+ if (iter == streamConfig.end()) {
+ cerr << "configure(): No configuration for stream 2" << endl;
+ return report(Op_configure, TestFail);
+ }
+ stream = &iter->second;
+ if (stream->pixelFormat != V4L2_PIX_FMT_NV12 ||
+ stream->size != Size{ 800, 600 }) {
+ cerr << "configure(): Invalid configuration for stream 2" << endl;
+ return report(Op_configure, TestFail);
+ }
+
+ /* Verify entityControls. */
+ auto ctrlIter = entityControls.find(42);
+ if (ctrlIter == entityControls.end()) {
+ cerr << "configure(): Controls not found" << endl;
+ return report(Op_configure, TestFail);
+ }
+
+ const ControlInfoMap &infoMap = ctrlIter->second;
+
+ if (infoMap.count(V4L2_CID_BRIGHTNESS) != 1 ||
+ infoMap.count(V4L2_CID_CONTRAST) != 1 ||
+ infoMap.count(V4L2_CID_SATURATION) != 1) {
+ cerr << "configure(): Invalid control IDs" << endl;
+ return report(Op_configure, TestFail);
+ }
+
+ report(Op_configure, TestPass);
+ }
+
+ void mapBuffers(const std::vector<IPABuffer> &buffers) override
+ {
+ if (buffers.size() != 2) {
+ cerr << "mapBuffers(): Invalid number of buffers "
+ << buffers.size() << endl;
+ return report(Op_mapBuffers, TestFail);
+ }
+
+ if (buffers[0].id != 10 ||
+ buffers[1].id != 11) {
+ cerr << "mapBuffers(): Invalid buffer IDs" << endl;
+ return report(Op_mapBuffers, TestFail);
+ }
+
+ if (buffers[0].memory.planes().size() != 3 ||
+ buffers[1].memory.planes().size() != 3) {
+ cerr << "mapBuffers(): Invalid number of planes" << endl;
+ return report(Op_mapBuffers, TestFail);
+ }
+
+ if (buffers[0].memory.planes()[0].length() != 4096 ||
+ buffers[0].memory.planes()[1].length() != 0 ||
+ buffers[0].memory.planes()[2].length() != 0 ||
+ buffers[0].memory.planes()[0].length() != 4096 ||
+ buffers[1].memory.planes()[1].length() != 4096 ||
+ buffers[1].memory.planes()[2].length() != 0) {
+ cerr << "mapBuffers(): Invalid length" << endl;
+ return report(Op_mapBuffers, TestFail);
+ }
+
+ if (buffers[0].memory.planes()[0].dmabuf() == -1 ||
+ buffers[0].memory.planes()[1].dmabuf() != -1 ||
+ buffers[0].memory.planes()[2].dmabuf() != -1 ||
+ buffers[0].memory.planes()[0].dmabuf() == -1 ||
+ buffers[1].memory.planes()[1].dmabuf() == -1 ||
+ buffers[1].memory.planes()[2].dmabuf() != -1) {
+ cerr << "mapBuffers(): Invalid dmabuf" << endl;
+ return report(Op_mapBuffers, TestFail);
+ }
+
+ report(Op_mapBuffers, TestPass);
+ }
+
+ void unmapBuffers(const std::vector<unsigned int> &ids) override
+ {
+ if (ids.size() != 2) {
+ cerr << "unmapBuffers(): Invalid number of ids "
+ << ids.size() << endl;
+ return report(Op_unmapBuffers, TestFail);
+ }
+
+ if (ids[0] != 10 || ids[1] != 11) {
+ cerr << "unmapBuffers(): Invalid buffer IDs" << endl;
+ return report(Op_unmapBuffers, TestFail);
+ }
+
+ report(Op_unmapBuffers, TestPass);
+ }
+
+ void processEvent(const IPAOperationData &data) override
+ {
+ /* Verify operation and data. */
+ if (data.operation != Op_processEvent) {
+ cerr << "processEvent(): Invalid operation "
+ << data.operation << endl;
+ return report(Op_processEvent, TestFail);
+ }
+
+ if (data.data != std::vector<unsigned int>{ 1, 2, 3, 4 }) {
+ cerr << "processEvent(): Invalid data" << endl;
+ return report(Op_processEvent, TestFail);
+ }
+
+ /* Verify controls. */
+ if (data.controls.size() != 1) {
+ cerr << "processEvent(): Controls not found" << endl;
+ return report(Op_processEvent, TestFail);
+ }
+
+ const ControlList &controls = data.controls[0];
+ if (controls.get(V4L2_CID_BRIGHTNESS).get<int32_t>() != 10 ||
+ controls.get(V4L2_CID_CONTRAST).get<int32_t>() != 20 ||
+ controls.get(V4L2_CID_SATURATION).get<int32_t>() != 30) {
+ cerr << "processEvent(): Invalid controls" << endl;
+ return report(Op_processEvent, TestFail);
+ }
+
+ report(Op_processEvent, TestPass);
+ }
+
+private:
+ void report(Operation op, int status)
+ {
+ IPAOperationData data;
+ data.operation = op;
+ data.data.resize(1);
+ data.data[0] = status;
+ queueFrameAction.emit(sequence_++, data);
+ }
+
+ unsigned int sequence_;
+};
+
+#define INVOKE(method, ...) \
+ invoke(&IPAInterface::method, Op_##method, #method, ##__VA_ARGS__)
+
+class IPAWrappersTest : public Test
+{
+public:
+ IPAWrappersTest()
+ : subdev_(nullptr), wrapper_(nullptr), sequence_(0), fd_(-1)
+ {
+ }
+
+protected:
+ int init() override
+ {
+ /* Locate the VIMC Sensor B subdevice. */
+ enumerator_ = unique_ptr<DeviceEnumerator>(DeviceEnumerator::create());
+ if (!enumerator_) {
+ cerr << "Failed to create device enumerator" << endl;
+ return TestFail;
+ }
+
+ if (enumerator_->enumerate()) {
+ cerr << "Failed to enumerate media devices" << endl;
+ return TestFail;
+ }
+
+ DeviceMatch dm("vimc");
+ media_ = enumerator_->search(dm);
+ if (!media_) {
+ cerr << "No VIMC media device found: skip test" << endl;
+ return TestSkip;
+ }
+
+ MediaEntity *entity = media_->getEntityByName("Sensor A");
+ if (!entity) {
+ cerr << "Unable to find media entity 'Sensor A'" << endl;
+ return TestFail;
+ }
+
+ subdev_ = new V4L2Subdevice(entity);
+ if (subdev_->open() < 0) {
+ cerr << "Unable to open 'Sensor A' subdevice" << endl;
+ return TestFail;
+ }
+
+ /* Force usage of the C API as that's what we want to test. */
+ int ret = setenv("LIBCAMERA_IPA_FORCE_C_API", "", 1);
+ if (ret)
+ return TestFail;
+
+ std::unique_ptr<IPAInterface> intf = utils::make_unique<TestIPAInterface>();
+ wrapper_ = new IPAContextWrapper(new IPAInterfaceWrapper(std::move(intf)));
+ wrapper_->queueFrameAction.connect(this, &IPAWrappersTest::queueFrameAction);
+
+ /* Create a file descriptor for the buffer-related operations. */
+ fd_ = open("/tmp", O_TMPFILE | O_RDWR, 0600);
+ if (fd_ == -1)
+ return TestFail;
+
+ ret = ftruncate(fd_, 4096);
+ if (ret < 0)
+ return TestFail;
+
+ return TestPass;
+ }
+
+ int run() override
+ {
+ int ret;
+
+ /* Test configure(). */
+ std::map<unsigned int, IPAStream> config{
+ { 1, { V4L2_PIX_FMT_YUYV, { 1024, 768 } } },
+ { 2, { V4L2_PIX_FMT_NV12, { 800, 600 } } },
+ };
+ std::map<unsigned int, const ControlInfoMap &> controlInfo;
+ controlInfo.emplace(42, subdev_->controls());
+ ret = INVOKE(configure, config, controlInfo);
+ if (ret == TestFail)
+ return TestFail;
+
+ /* Test mapBuffers(). */
+ std::vector<IPABuffer> buffers(2);
+ buffers[0].memory.planes().resize(3);
+ buffers[0].id = 10;
+ buffers[0].memory.planes()[0].setDmabuf(fd_, 4096);
+ buffers[1].id = 11;
+ buffers[1].memory.planes().resize(3);
+ buffers[1].memory.planes()[0].setDmabuf(fd_, 4096);
+ buffers[1].memory.planes()[1].setDmabuf(fd_, 4096);
+
+ ret = INVOKE(mapBuffers, buffers);
+ if (ret == TestFail)
+ return TestFail;
+
+ /* Test unmapBuffers(). */
+ std::vector<unsigned int> bufferIds = { 10, 11 };
+ ret = INVOKE(unmapBuffers, bufferIds);
+ if (ret == TestFail)
+ return TestFail;
+
+ /* Test processEvent(). */
+ IPAOperationData data;
+ data.operation = Op_processEvent;
+ data.data = { 1, 2, 3, 4 };
+ data.controls.emplace_back(subdev_->controls());
+
+ ControlList &controls = data.controls.back();
+ controls.set(V4L2_CID_BRIGHTNESS, static_cast<int32_t>(10));
+ controls.set(V4L2_CID_CONTRAST, static_cast<int32_t>(20));
+ controls.set(V4L2_CID_SATURATION, static_cast<int32_t>(30));
+
+ ret = INVOKE(processEvent, data);
+ if (ret == TestFail)
+ return TestFail;
+
+ /*
+ * Test init() last to ensure nothing in the wrappers or
+ * serializer depends on init() being called first.
+ */
+ ret = INVOKE(init);
+ if (ret == TestFail)
+ return TestFail;
+
+ return TestPass;
+ }
+
+ void cleanup() override
+ {
+ delete wrapper_;
+ delete subdev_;
+
+ if (fd_ != -1)
+ close(fd_);
+ }
+
+private:
+ template<typename T, typename... Args1, typename... Args2>
+ int invoke(T (IPAInterface::*func)(Args1...), Operation op,
+ const char *name, Args2... args)
+ {
+ data_ = IPAOperationData();
+ (wrapper_->*func)(args...);
+
+ if (frame_ != sequence_) {
+ cerr << "IPAInterface::" << name
+ << "(): invalid frame number " << frame_
+ << ", expected " << sequence_;
+ return TestFail;
+ }
+
+ sequence_++;
+
+ if (data_.operation != op) {
+ cerr << "IPAInterface::" << name
+ << "(): failed to propagate" << endl;
+ return TestFail;
+ }
+
+ if (data_.data[0] != TestPass) {
+ cerr << "IPAInterface::" << name
+ << "(): reported an error" << endl;
+ return TestFail;
+ }
+
+ return TestPass;
+ }
+
+ void queueFrameAction(unsigned int frame, const IPAOperationData &data)
+ {
+ frame_ = frame;
+ data_ = data;
+ }
+
+ std::shared_ptr<MediaDevice> media_;
+ std::unique_ptr<DeviceEnumerator> enumerator_;
+ V4L2Subdevice *subdev_;
+
+ IPAContextWrapper *wrapper_;
+ IPAOperationData data_;
+ unsigned int sequence_;
+ unsigned int frame_;
+ int fd_;
+};
+
+TEST_REGISTER(IPAWrappersTest)