libcamera/vivid.git - libcamera pipeline handler for VIVID

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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 <algorithm> #include <array> #include <iostream> #include <limits.h> #include "libcamera/internal/v4l2_videodevice.h" #include "v4l2_videodevice_test.h" /* These come from the vivid driver. */ #define VIVID_CID_CUSTOM_BASE (V4L2_CID_USER_BASE | 0xf000) #define VIVID_CID_INTEGER64 (VIVID_CID_CUSTOM_BASE + 3) #define VIVID_CID_U8_4D_ARRAY (VIVID_CID_CUSTOM_BASE + 10) /* Helper for VIVID_CID_U8_4D_ARRAY control array size: not from kernel. */ #define VIVID_CID_U8_ARRAY_SIZE (2 * 3 * 4 * 5) 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() || infoMap.find(VIVID_CID_INTEGER64) == infoMap.end() || infoMap.find(VIVID_CID_U8_4D_ARRAY) == 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; const ControlInfo &int64 = infoMap.find(VIVID_CID_INTEGER64)->second; const ControlInfo &u8 = infoMap.find(VIVID_CID_U8_4D_ARRAY)->second; /* Test getting controls. */ ControlList ctrls = capture_->getControls({ V4L2_CID_BRIGHTNESS, V4L2_CID_CONTRAST, V4L2_CID_SATURATION, VIVID_CID_INTEGER64, VIVID_CID_U8_4D_ARRAY }); if (ctrls.empty()) { cerr << "Failed to get controls" << endl; return TestFail; } if (ctrls.infoMap() != &infoMap) { cerr << "Incorrect infoMap for retrieved 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; } /* * The VIVID_CID_INTEGER64 control can take any value, just test * that its value can be retrieved and has the right type. */ ctrls.get(VIVID_CID_INTEGER64).get<int64_t>(); uint8_t u8Min = u8.min().get<uint8_t>(); uint8_t u8Max = u8.max().get<uint8_t>(); Span<const uint8_t> u8Span = ctrls.get(VIVID_CID_U8_4D_ARRAY).get<Span<const uint8_t>>(); bool valid = std::all_of(u8Span.begin(), u8Span.end(), [&](uint8_t v) { return v >= u8Min && v <= u8Max; }); if (!valid) { cerr << "Incorrect value for retrieved array control" << 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()); ctrls.set(VIVID_CID_INTEGER64, int64.min()); std::array<uint8_t, VIVID_CID_U8_ARRAY_SIZE> u8Values; std::fill(u8Values.begin(), u8Values.end(), u8.min().get<uint8_t>()); ctrls.set(VIVID_CID_U8_4D_ARRAY, Span<const uint8_t>(u8Values)); int 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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