libcamera/vivid.git - libcamera pipeline handler for VIVID

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author	Show Liu <show.liu@linaro.org>	2020-09-11 16:55:13 +0800
committer	Laurent Pinchart <laurent.pinchart@ideasonboard.com>	2020-09-15 05:10:35 +0300
commit	9db6ce0ba499eba53db236558d783a4ff7aa3896 (patch)
tree	711ddd446328023e38b2b1a751b2780a3510ba61 /test/event-dispatcher.cpp
parent	2daa704c968c8aa7a4b209450f228b41e9d42d85 (diff)

qcam: Add ViewFinderGL class to accelerate the format conversion

The viewfinderGL accelerates the format conversion by using OpenGL ES shader. The minimum Qt version is bumped to v5.4, as QOpenGLWidget wasn't available before that. Signed-off-by: Show Liu <show.liu@linaro.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Diffstat (limited to 'test/event-dispatcher.cpp')

0 files changed, 0 insertions, 0 deletions

/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2021, Ideas on Board Oy * * DRM/KMS Helpers */ #include "drm.h" #include <algorithm> #include <dirent.h> #include <errno.h> #include <fcntl.h> #include <iostream> #include <set> #include <string.h> #include <sys/ioctl.h> #include <sys/stat.h> #include <sys/types.h> #include <libcamera/framebuffer.h> #include <libcamera/geometry.h> #include <libcamera/pixel_format.h> #include <libdrm/drm_mode.h> #include "../common/event_loop.h" namespace DRM { Object::Object(Device *dev, uint32_t id, Type type) : id_(id), dev_(dev), type_(type) { /* Retrieve properties from the objects that support them. */ if (type != TypeConnector && type != TypeCrtc && type != TypeEncoder && type != TypePlane) return; /* * We can't distinguish between failures due to the object having no * property and failures due to other conditions. Assume we use the API * correctly and consider the object has no property. */ drmModeObjectProperties *properties = drmModeObjectGetProperties(dev->fd(), id, type); if (!properties) return; properties_.reserve(properties->count_props); for (uint32_t i = 0; i < properties->count_props; ++i) properties_.emplace_back(properties->props[i], properties->prop_values[i]); drmModeFreeObjectProperties(properties); } Object::~Object() { } const Property *Object::property(const std::string &name) const { for (const PropertyValue &pv : properties_) { const Property *property = static_cast<const Property *>(dev_->object(pv.id())); if (property && property->name() == name) return property; } return nullptr; } const PropertyValue *Object::propertyValue(const std::string &name) const { for (const PropertyValue &pv : properties_) { const Property *property = static_cast<const Property *>(dev_->object(pv.id())); if (property && property->name() == name) return &pv; } return nullptr; } Property::Property(Device *dev, drmModePropertyRes *property) : Object(dev, property->prop_id, TypeProperty), name_(property->name), flags_(property->flags), values_(property->values, property->values + property->count_values), blobs_(property->blob_ids, property->blob_ids + property->count_blobs) { if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) type_ = TypeRange; else if (drm_property_type_is(property, DRM_MODE_PROP_ENUM)) type_ = TypeEnum; else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) type_ = TypeBlob; else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) type_ = TypeBitmask; else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) type_ = TypeObject; else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) type_ = TypeSignedRange; else type_ = TypeUnknown; for (int i = 0; i < property->count_enums; ++i) enums_[property->enums[i].value] = property->enums[i].name; } Blob::Blob(Device *dev, const libcamera::Span<const uint8_t> &data) : Object(dev, 0, Object::TypeBlob) { drmModeCreatePropertyBlob(dev->fd(), data.data(), data.size(), &id_); } Blob::~Blob() { if (isValid()) drmModeDestroyPropertyBlob(device()->fd(), id()); } Mode::Mode(const drmModeModeInfo &mode) : drmModeModeInfo(mode) { } std::unique_ptr<Blob> Mode::toBlob(Device *dev) const { libcamera::Span<const uint8_t> data{ reinterpret_cast<const uint8_t *>(this), sizeof(*this) }; return std::make_unique<Blob>(dev, data); } Crtc::Crtc(Device *dev, const drmModeCrtc *crtc, unsigned int index) : Object(dev, crtc->crtc_id, Object::TypeCrtc), index_(index) { } Encoder::Encoder(Device *dev, const drmModeEncoder *encoder) : Object(dev, encoder->encoder_id, Object::TypeEncoder), type_(encoder->encoder_type) { const std::list<Crtc> &crtcs = dev->crtcs(); possibleCrtcs_.reserve(crtcs.size()); for (const Crtc &crtc : crtcs) { if (encoder->possible_crtcs & (1 << crtc.index())) possibleCrtcs_.push_back(&crtc); } possibleCrtcs_.shrink_to_fit(); } namespace { const std::map<uint32_t, const char *> connectorTypeNames{ { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, { DRM_MODE_CONNECTOR_VGA, "VGA" }, { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, { DRM_MODE_CONNECTOR_Composite, "Composite" }, { DRM_MODE_CONNECTOR_SVIDEO, "S-Video" }, { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, { DRM_MODE_CONNECTOR_Component, "Component" }, { DRM_MODE_CONNECTOR_9PinDIN, "9-Pin-DIN" }, { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, { DRM_MODE_CONNECTOR_TV, "TV" }, { DRM_MODE_CONNECTOR_eDP, "eDP" }, { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, { DRM_MODE_CONNECTOR_DSI, "DSI" }, { DRM_MODE_CONNECTOR_DPI, "DPI" }, }; } /* namespace */ Connector::Connector(Device *dev, const drmModeConnector *connector) : Object(dev, connector->connector_id, Object::TypeConnector), type_(connector->connector_type) { auto typeName = connectorTypeNames.find(connector->connector_type); if (typeName == connectorTypeNames.end()) { std::cerr << "Invalid connector type " << connector->connector_type << std::endl; typeName = connectorTypeNames.find(DRM_MODE_CONNECTOR_Unknown); } name_ = std::string(typeName->second) + "-" + std::to_string(connector->connector_type_id); switch (connector->connection) { case DRM_MODE_CONNECTED: status_ = Status::Connected; break; case DRM_MODE_DISCONNECTED: status_ = Status::Disconnected; break; case DRM_MODE_UNKNOWNCONNECTION: default: status_ = Status::Unknown; break; } const std::list<Encoder> &encoders = dev->encoders(); encoders_.reserve(connector->count_encoders); for (int i = 0; i < connector->count_encoders; ++i) { uint32_t encoderId = connector->encoders[i]; auto encoder = std::find_if(encoders.begin(), encoders.end(), [=](const Encoder &e) { return e.id() == encoderId; }); if (encoder == encoders.end()) { std::cerr << "Encoder " << encoderId << " not found" << std::endl; continue; } encoders_.push_back(&*encoder); } encoders_.shrink_to_fit(); modes_ = { connector->modes, connector->modes + connector->count_modes }; } Plane::Plane(Device *dev, const drmModePlane *plane) : Object(dev, plane->plane_id, Object::TypePlane), possibleCrtcsMask_(plane->possible_crtcs) { formats_ = { plane->formats, plane->formats + plane->count_formats }; const std::list<Crtc> &crtcs = dev->crtcs(); possibleCrtcs_.reserve(crtcs.size()); for (const Crtc &crtc : crtcs) { if (plane->possible_crtcs & (1 << crtc.index())) possibleCrtcs_.push_back(&crtc); } possibleCrtcs_.shrink_to_fit(); } bool Plane::supportsFormat(const libcamera::PixelFormat &format) const { return std::find(formats_.begin(), formats_.end(), format.fourcc()) != formats_.end(); } int Plane::setup() { const PropertyValue *pv = propertyValue("type"); if (!pv) return -EINVAL; switch (pv->value()) { case DRM_PLANE_TYPE_OVERLAY: type_ = TypeOverlay; break; case DRM_PLANE_TYPE_PRIMARY: type_ = TypePrimary; break; case DRM_PLANE_TYPE_CURSOR: type_ = TypeCursor; break; default: return -EINVAL; } return 0; } FrameBuffer::FrameBuffer(Device *dev) : Object(dev, 0, Object::TypeFb) { } FrameBuffer::~FrameBuffer() { for (const auto &plane : planes_) { struct drm_gem_close gem_close = { .handle = plane.second.handle, .pad = 0, }; int ret; do { ret = ioctl(device()->fd(), DRM_IOCTL_GEM_CLOSE, &gem_close); } while (ret == -1 && (errno == EINTR || errno == EAGAIN)); if (ret == -1) { ret = -errno; std::cerr << "Failed to close GEM object: " << strerror(-ret) << std::endl; } } drmModeRmFB(device()->fd(), id()); } AtomicRequest::AtomicRequest(Device *dev) : dev_(dev), valid_(true) { request_ = drmModeAtomicAlloc(); if (!request_) valid_ = false; } AtomicRequest::~AtomicRequest() { if (request_) drmModeAtomicFree(request_); } int AtomicRequest::addProperty(const Object *object, const std::string &property, uint64_t value) { if (!valid_) return -EINVAL; const Property *prop = object->property(property); if (!prop) { valid_ = false; return -EINVAL; } return addProperty(object->id(), prop->id(), value); } int AtomicRequest::addProperty(const Object *object, const std::string &property, std::unique_ptr<Blob> blob) { if (!valid_) return -EINVAL; const Property *prop = object->property(property); if (!prop) { valid_ = false; return -EINVAL; } int ret = addProperty(object->id(), prop->id(), blob->id()); if (ret < 0) return ret; blobs_.emplace_back(std::move(blob)); return 0; } int AtomicRequest::addProperty(uint32_t object, uint32_t property, uint64_t value) { int ret = drmModeAtomicAddProperty(request_, object, property, value); if (ret < 0) { valid_ = false; return ret; } return 0; } int AtomicRequest::commit(unsigned int flags) { if (!valid_) return -EINVAL; uint32_t drmFlags = 0; if (flags & FlagAllowModeset) drmFlags |= DRM_MODE_ATOMIC_ALLOW_MODESET; if (flags & FlagAsync) drmFlags |= DRM_MODE_PAGE_FLIP_EVENT | DRM_MODE_ATOMIC_NONBLOCK; if (flags & FlagTestOnly) drmFlags |= DRM_MODE_ATOMIC_TEST_ONLY; return drmModeAtomicCommit(dev_->fd(), request_, drmFlags, this); } Device::Device() : fd_(-1) { } Device::~Device() { if (fd_ != -1) drmClose(fd_); } int Device::init() { int ret = openCard(); if (ret < 0) { std::cerr << "Failed to open any DRM/KMS device: " << strerror(-ret) << std::endl; return ret; } /* * Enable the atomic APIs. This also automatically enables the * universal planes API. */ ret = drmSetClientCap(fd_, DRM_CLIENT_CAP_ATOMIC, 1); if (ret < 0) { ret = -errno; std::cerr << "Failed to enable atomic capability: " << strerror(-ret) << std::endl; return ret; } /* List all the resources. */ ret = getResources(); if (ret < 0) return ret; EventLoop::instance()->addFdEvent(fd_, EventLoop::Read, std::bind(&Device::drmEvent, this)); return 0; } int Device::openCard() { const std::string dirName = "/dev/dri/"; bool found = false; int ret; /* * Open the first DRM/KMS device beginning with /dev/dri/card. The * libdrm drmOpen*() functions require either a module name or a bus ID, * which we don't have, so bypass them. The automatic module loading and * device node creation from drmOpen() is of no practical use as any * modern system will handle that through udev or an equivalent * component. */ DIR *folder = opendir(dirName.c_str()); if (!folder) { ret = -errno; std::cerr << "Failed to open " << dirName << " directory: " << strerror(-ret) << std::endl; return ret; } for (struct dirent *res; (res = readdir(folder));) { uint64_t cap; if (strncmp(res->d_name, "card", 4)) continue; const std::string devName = dirName + res->d_name; fd_ = open(devName.c_str(), O_RDWR | O_CLOEXEC); if (fd_ < 0) { ret = -errno; std::cerr << "Failed to open DRM/KMS device " << devName << ": " << strerror(-ret) << std::endl; continue; } /* * Skip devices that don't support the modeset API, to avoid * selecting a DRM device corresponding to a GPU. There is no * modeset capability, but the kernel returns an error for most * caps if mode setting isn't support by the driver. The * DRM_CAP_DUMB_BUFFER capability is one of those, other would * do as well. The capability value itself isn't relevant. */ ret = drmGetCap(fd_, DRM_CAP_DUMB_BUFFER, &cap); if (ret < 0) { drmClose(fd_); fd_ = -1; continue; } found = true; break; } closedir(folder); return found ? 0 : -ENOENT; } int Device::getResources() { int ret; std::unique_ptr<drmModeRes, decltype(&drmModeFreeResources)> resources{ drmModeGetResources(fd_), &drmModeFreeResources }; if (!resources) { ret = -errno; std::cerr << "Failed to get DRM/KMS resources: " << strerror(-ret) << std::endl; return ret; } for (int i = 0; i < resources->count_crtcs; ++i) { drmModeCrtc *crtc = drmModeGetCrtc(fd_, resources->crtcs[i]); if (!crtc) { ret = -errno; std::cerr << "Failed to get CRTC: " << strerror(-ret) << std::endl; return ret; } crtcs_.emplace_back(this, crtc, i); drmModeFreeCrtc(crtc); Crtc &obj = crtcs_.back(); objects_[obj.id()] = &obj; } for (int i = 0; i < resources->count_encoders; ++i) { drmModeEncoder *encoder = drmModeGetEncoder(fd_, resources->encoders[i]); if (!encoder) { ret = -errno; std::cerr << "Failed to get encoder: " << strerror(-ret) << std::endl; return ret; } encoders_.emplace_back(this, encoder); drmModeFreeEncoder(encoder); Encoder &obj = encoders_.back(); objects_[obj.id()] = &obj; } for (int i = 0; i < resources->count_connectors; ++i) { drmModeConnector *connector = drmModeGetConnector(fd_, resources->connectors[i]); if (!connector) { ret = -errno; std::cerr << "Failed to get connector: " << strerror(-ret) << std::endl; return ret; } connectors_.emplace_back(this, connector); drmModeFreeConnector(connector); Connector &obj = connectors_.back(); objects_[obj.id()] = &obj; } std::unique_ptr<drmModePlaneRes, decltype(&drmModeFreePlaneResources)> planes{ drmModeGetPlaneResources(fd_), &drmModeFreePlaneResources }; if (!planes) { ret = -errno; std::cerr << "Failed to get DRM/KMS planes: " << strerror(-ret) << std::endl; return ret; } for (uint32_t i = 0; i < planes->count_planes; ++i) { drmModePlane *plane = drmModeGetPlane(fd_, planes->planes[i]); if (!plane) { ret = -errno; std::cerr << "Failed to get plane: " << strerror(-ret) << std::endl; return ret; } planes_.emplace_back(this, plane); drmModeFreePlane(plane); Plane &obj = planes_.back(); objects_[obj.id()] = &obj; } /* Set the possible planes for each CRTC. */ for (Crtc &crtc : crtcs_) { for (const Plane &plane : planes_) { if (plane.possibleCrtcsMask_ & (1 << crtc.index())) crtc.planes_.push_back(&plane); } } /* Collect all property IDs and create Property instances. */ std::set<uint32_t> properties; for (const auto &object : objects_) { for (const PropertyValue &value : object.second->properties()) properties.insert(value.id()); } for (uint32_t id : properties) { drmModePropertyRes *property = drmModeGetProperty(fd_, id); if (!property) { ret = -errno; std::cerr << "Failed to get property: " << strerror(-ret) << std::endl; continue; } properties_.emplace_back(this, property); drmModeFreeProperty(property); Property &obj = properties_.back(); objects_[obj.id()] = &obj; } /* Finally, perform all delayed setup of mode objects. */ for (auto &object : objects_) { ret = object.second->setup(); if (ret < 0) { std::cerr << "Failed to setup object " << object.second->id() << ": " << strerror(-ret) << std::endl; return ret; } } return 0; } const Object *Device::object(uint32_t id) { const auto iter = objects_.find(id); if (iter == objects_.end()) return nullptr; return iter->second; } std::unique_ptr<FrameBuffer> Device::createFrameBuffer( const libcamera::FrameBuffer &buffer, const libcamera::PixelFormat &format, const libcamera::Size &size, const std::array<uint32_t, 4> &strides) { std::unique_ptr<FrameBuffer> fb{ new FrameBuffer(this) }; uint32_t handles[4] = {}; uint32_t offsets[4] = {}; int ret; const std::vector<libcamera::FrameBuffer::Plane> &planes = buffer.planes(); unsigned int i = 0; for (const libcamera::FrameBuffer::Plane &plane : planes) { int fd = plane.fd.get(); uint32_t handle; auto iter = fb->planes_.find(fd); if (iter == fb->planes_.end()) { ret = drmPrimeFDToHandle(fd_, plane.fd.get(), &handle); if (ret < 0) { ret = -errno; std::cerr << "Unable to import framebuffer dmabuf: " << strerror(-ret) << std::endl; return nullptr; } fb->planes_[fd] = { handle }; } else { handle = iter->second.handle; } handles[i] = handle; offsets[i] = plane.offset; ++i; } ret = drmModeAddFB2(fd_, size.width, size.height, format.fourcc(), handles, strides.data(), offsets, &fb->id_, 0); if (ret < 0) { ret = -errno; std::cerr << "Failed to add framebuffer: " << strerror(-ret) << std::endl; return nullptr; } return fb; } void Device::drmEvent() { drmEventContext ctx{}; ctx.version = DRM_EVENT_CONTEXT_VERSION; ctx.page_flip_handler = &Device::pageFlipComplete; drmHandleEvent(fd_, &ctx); } void Device::pageFlipComplete([[maybe_unused]] int fd, [[maybe_unused]] unsigned int sequence, [[maybe_unused]] unsigned int tv_sec, [[maybe_unused]] unsigned int tv_usec, void *user_data) { AtomicRequest *request = static_cast<AtomicRequest *>(user_data); request->device()->requestComplete.emit(request); } } /* namespace DRM */


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