142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* V4L2 device controls handling test
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*/
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#include <algorithm>
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#include <array>
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#include <iostream>
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#include <limits.h>
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#include "libcamera/internal/v4l2_videodevice.h"
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#include "v4l2_videodevice_test.h"
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/* These come from the vivid driver. */
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#define VIVID_CID_CUSTOM_BASE (V4L2_CID_USER_BASE | 0xf000)
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#define VIVID_CID_INTEGER64 (VIVID_CID_CUSTOM_BASE + 3)
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#define VIVID_CID_U8_4D_ARRAY (VIVID_CID_CUSTOM_BASE + 10)
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/* Helper for VIVID_CID_U8_4D_ARRAY control array size: not from kernel. */
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#define VIVID_CID_U8_ARRAY_SIZE (2 * 3 * 4 * 5)
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using namespace std;
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using namespace libcamera;
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class V4L2ControlTest : public V4L2VideoDeviceTest
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{
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public:
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V4L2ControlTest()
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: V4L2VideoDeviceTest("vivid", "vivid-000-vid-cap")
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{
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}
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protected:
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int run()
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{
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const ControlInfoMap &infoMap = capture_->controls();
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/* Test control enumeration. */
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if (infoMap.empty()) {
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cerr << "Failed to enumerate controls" << endl;
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return TestFail;
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}
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if (infoMap.find(V4L2_CID_BRIGHTNESS) == infoMap.end() ||
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infoMap.find(V4L2_CID_CONTRAST) == infoMap.end() ||
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infoMap.find(V4L2_CID_SATURATION) == infoMap.end() ||
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infoMap.find(VIVID_CID_INTEGER64) == infoMap.end() ||
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infoMap.find(VIVID_CID_U8_4D_ARRAY) == infoMap.end()) {
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cerr << "Missing controls" << endl;
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return TestFail;
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}
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const ControlInfo &brightness = infoMap.find(V4L2_CID_BRIGHTNESS)->second;
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const ControlInfo &contrast = infoMap.find(V4L2_CID_CONTRAST)->second;
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const ControlInfo &saturation = infoMap.find(V4L2_CID_SATURATION)->second;
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const ControlInfo &int64 = infoMap.find(VIVID_CID_INTEGER64)->second;
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const ControlInfo &u8 = infoMap.find(VIVID_CID_U8_4D_ARRAY)->second;
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/* Test getting controls. */
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ControlList ctrls = capture_->getControls({ V4L2_CID_BRIGHTNESS,
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V4L2_CID_CONTRAST,
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V4L2_CID_SATURATION,
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VIVID_CID_INTEGER64,
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VIVID_CID_U8_4D_ARRAY });
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if (ctrls.empty()) {
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cerr << "Failed to get controls" << endl;
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return TestFail;
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}
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if (ctrls.infoMap() != &infoMap) {
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cerr << "Incorrect infoMap for retrieved controls" << endl;
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return TestFail;
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}
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if (ctrls.get(V4L2_CID_BRIGHTNESS).get<int32_t>() == -1 ||
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ctrls.get(V4L2_CID_CONTRAST).get<int32_t>() == -1 ||
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ctrls.get(V4L2_CID_SATURATION).get<int32_t>() == -1) {
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cerr << "Incorrect value for retrieved controls" << endl;
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return TestFail;
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}
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/*
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* The VIVID_CID_INTEGER64 control can take any value, just test
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* that its value can be retrieved and has the right type.
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*/
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ctrls.get(VIVID_CID_INTEGER64).get<int64_t>();
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uint8_t u8Min = u8.min().get<uint8_t>();
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uint8_t u8Max = u8.max().get<uint8_t>();
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Span<const uint8_t> u8Span = ctrls.get(VIVID_CID_U8_4D_ARRAY).get<Span<const uint8_t>>();
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bool valid = std::all_of(u8Span.begin(), u8Span.end(),
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[&](uint8_t v) { return v >= u8Min && v <= u8Max; });
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if (!valid) {
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cerr << "Incorrect value for retrieved array control"
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<< endl;
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return TestFail;
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}
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/* Test setting controls. */
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ctrls.set(V4L2_CID_BRIGHTNESS, brightness.min());
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ctrls.set(V4L2_CID_CONTRAST, contrast.max());
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ctrls.set(V4L2_CID_SATURATION, saturation.min());
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ctrls.set(VIVID_CID_INTEGER64, int64.min());
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std::array<uint8_t, VIVID_CID_U8_ARRAY_SIZE> u8Values;
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std::fill(u8Values.begin(), u8Values.end(), u8.min().get<uint8_t>());
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ctrls.set(VIVID_CID_U8_4D_ARRAY, Span<const uint8_t>(u8Values));
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int ret = capture_->setControls(&ctrls);
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if (ret) {
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cerr << "Failed to set controls" << endl;
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return TestFail;
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}
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/* Test setting controls outside of range. */
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ctrls.set(V4L2_CID_BRIGHTNESS, brightness.min().get<int32_t>() - 1);
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ctrls.set(V4L2_CID_CONTRAST, contrast.max().get<int32_t>() + 1);
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ctrls.set(V4L2_CID_SATURATION, saturation.min().get<int32_t>() + 1);
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ret = capture_->setControls(&ctrls);
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if (ret) {
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cerr << "Failed to set controls (out of range)" << endl;
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return TestFail;
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}
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if (ctrls.get(V4L2_CID_BRIGHTNESS) != brightness.min() ||
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ctrls.get(V4L2_CID_CONTRAST) != contrast.max() ||
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ctrls.get(V4L2_CID_SATURATION) != saturation.min().get<int32_t>() + 1) {
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cerr << "Controls not updated when set" << endl;
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return TestFail;
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}
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return TestPass;
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}
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};
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TEST_REGISTER(V4L2ControlTest)
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