/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2020, Google Inc. * * simple_capture.cpp - Simple capture helper */ #include "simple_capture.h" using namespace libcamera; SimpleCapture::SimpleCapture(std::shared_ptr camera) : loop_(nullptr), camera_(camera), allocator_(std::make_unique(camera)) { } SimpleCapture::~SimpleCapture() { } Results::Result SimpleCapture::configure(StreamRole role) { config_ = camera_->generateConfiguration({ role }); if (!config_) return { Results::Skip, "Role not supported by camera" }; if (config_->validate() != CameraConfiguration::Valid) { config_.reset(); return { Results::Fail, "Configuration not valid" }; } if (camera_->configure(config_.get())) { config_.reset(); return { Results::Fail, "Failed to configure camera" }; } return { Results::Pass, "Configure camera" }; } Results::Result SimpleCapture::start() { Stream *stream = config_->at(0).stream(); if (allocator_->allocate(stream) < 0) return { Results::Fail, "Failed to allocate buffers" }; if (camera_->start()) return { Results::Fail, "Failed to start camera" }; camera_->requestCompleted.connect(this, &SimpleCapture::requestComplete); return { Results::Pass, "Started camera" }; } void SimpleCapture::stop() { Stream *stream = config_->at(0).stream(); camera_->stop(); camera_->requestCompleted.disconnect(this, &SimpleCapture::requestComplete); allocator_->free(stream); } /* SimpleCaptureBalanced */ SimpleCaptureBalanced::SimpleCaptureBalanced(std::shared_ptr camera) : SimpleCapture(camera) { } Results::Result SimpleCaptureBalanced::capture(unsigned int numRequests) { Results::Result ret = start(); if (ret.first != Results::Pass) return ret; Stream *stream = config_->at(0).stream(); const std::vector> &buffers = allocator_->buffers(stream); /* No point in testing less requests then the camera depth. */ if (buffers.size() > numRequests) { /* Cache buffers.size() before we destroy it in stop() */ int buffers_size = buffers.size(); stop(); return { Results::Skip, "Camera needs " + std::to_string(buffers_size) + " requests, can't test only " + std::to_string(numRequests) }; } queueCount_ = 0; captureCount_ = 0; captureLimit_ = numRequests; /* Queue the recommended number of reqeuests. */ std::vector> requests; for (const std::unique_ptr &buffer : buffers) { std::unique_ptr request = camera_->createRequest(); if (!request) { stop(); return { Results::Fail, "Can't create request" }; } if (request->addBuffer(stream, buffer.get())) { stop(); return { Results::Fail, "Can't set buffer for request" }; } if (queueRequest(request.get()) < 0) { stop(); return { Results::Fail, "Failed to queue request" }; } requests.push_back(std::move(request)); } /* Run capture session. */ loop_ = new EventLoop(); loop_->exec(); stop(); delete loop_; if (captureCount_ != captureLimit_) return { Results::Fail, "Got " + std::to_string(captureCount_) + " request, wanted " + std::to_string(captureLimit_) }; return { Results::Pass, "Balanced capture of " + std::to_string(numRequests) + " requests" }; } int SimpleCaptureBalanced::queueRequest(Request *request) { queueCount_++; if (queueCount_ > captureLimit_) return 0; return camera_->queueRequest(request); } void SimpleCaptureBalanced::requestComplete(Request *request) { captureCount_++; if (captureCount_ >= captureLimit_) { loop_->exit(0); return; } request->reuse(Request::ReuseBuffers); if (queueRequest(request)) loop_->exit(-EINVAL); } /* SimpleCaptureUnbalanced */ SimpleCaptureUnbalanced::SimpleCaptureUnbalanced(std::shared_ptr camera) : SimpleCapture(camera) { } Results::Result SimpleCaptureUnbalanced::capture(unsigned int numRequests) { Results::Result ret = start(); if (ret.first != Results::Pass) return ret; Stream *stream = config_->at(0).stream(); const std::vector> &buffers = allocator_->buffers(stream); captureCount_ = 0; captureLimit_ = numRequests; /* Queue the recommended number of reqeuests. */ std::vector> requests; for (const std::unique_ptr &buffer : buffers) { std::unique_ptr request = camera_->createRequest(); if (!request) { stop(); return { Results::Fail, "Can't create request" }; } if (request->addBuffer(stream, buffer.get())) { stop(); return { Results::Fail, "Can't set buffer for request" }; } if (camera_->queueRequest(request.get()) < 0) { stop(); return { Results::Fail, "Failed to queue request" }; } requests.push_back(std::move(request)); } /* Run capture session. */ loop_ = new EventLoop(); int status = loop_->exec(); stop(); delete loop_; return { status ? Results::Fail : Results::Pass, "Unbalanced capture of " + std::to_string(numRequests) + " requests" }; } void SimpleCaptureUnbalanced::requestComplete(Request *request) { captureCount_++; if (captureCount_ >= captureLimit_) { loop_->exit(0); return; } request->reuse(Request::ReuseBuffers); if (camera_->queueRequest(request)) loop_->exit(-EINVAL); } > 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218