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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* controls.cpp - V4L2 device controls handling test
*/
#include <iostream>
#include <limits.h>
#include "v4l2_videodevice.h"
#include "v4l2_videodevice_test.h"
using namespace std;
using namespace libcamera;
class V4L2ControlTest : public V4L2VideoDeviceTest
{
public:
V4L2ControlTest()
: V4L2VideoDeviceTest("vivid", "vivid-000-vid-cap")
{
}
protected:
int run()
{
const ControlInfoMap &infoMap = capture_->controls();
/* Test control enumeration. */
if (infoMap.empty()) {
cerr << "Failed to enumerate controls" << endl;
return TestFail;
}
if (infoMap.find(V4L2_CID_BRIGHTNESS) == infoMap.end() ||
infoMap.find(V4L2_CID_CONTRAST) == infoMap.end() ||
infoMap.find(V4L2_CID_SATURATION) == infoMap.end()) {
cerr << "Missing controls" << endl;
return TestFail;
}
const ControlInfo &brightness = infoMap.find(V4L2_CID_BRIGHTNESS)->second;
const ControlInfo &contrast = infoMap.find(V4L2_CID_CONTRAST)->second;
const ControlInfo &saturation = infoMap.find(V4L2_CID_SATURATION)->second;
/* Test getting controls. */
ControlList ctrls(infoMap);
ctrls.set(V4L2_CID_BRIGHTNESS, -1);
ctrls.set(V4L2_CID_CONTRAST, -1);
ctrls.set(V4L2_CID_SATURATION, -1);
int ret = capture_->getControls(&ctrls);
if (ret) {
cerr << "Failed to get controls" << endl;
return TestFail;
}
if (ctrls.get(V4L2_CID_BRIGHTNESS).get<int32_t>() == -1 ||
ctrls.get(V4L2_CID_CONTRAST).get<int32_t>() == -1 ||
ctrls.get(V4L2_CID_SATURATION).get<int32_t>() == -1) {
cerr << "Incorrect value for retrieved controls" << endl;
return TestFail;
}
/* Test setting controls. */
ctrls.set(V4L2_CID_BRIGHTNESS, brightness.min());
ctrls.set(V4L2_CID_CONTRAST, contrast.max());
ctrls.set(V4L2_CID_SATURATION, saturation.min());
ret = capture_->setControls(&ctrls);
if (ret) {
cerr << "Failed to set controls" << endl;
return TestFail;
}
/* Test setting controls outside of range. */
ctrls.set(V4L2_CID_BRIGHTNESS, brightness.min().get<int32_t>() - 1);
ctrls.set(V4L2_CID_CONTRAST, contrast.max().get<int32_t>() + 1);
ctrls.set(V4L2_CID_SATURATION, saturation.min().get<int32_t>() + 1);
ret = capture_->setControls(&ctrls);
if (ret) {
cerr << "Failed to set controls (out of range)" << endl;
return TestFail;
}
if (ctrls.get(V4L2_CID_BRIGHTNESS) != brightness.min() ||
ctrls.get(V4L2_CID_CONTRAST) != contrast.max() ||
ctrls.get(V4L2_CID_SATURATION) != saturation.min().get<int32_t>() + 1) {
cerr << "Controls not updated when set" << endl;
return TestFail;
}
return TestPass;
}
};
TEST_REGISTER(V4L2ControlTest);
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