Laurent Pinchart
d6d4710d04
Implement the D-Pointer design pattern in the FrameBuffer class to allow changing internal data without affecting the public ABI. Move the request_ field and the setRequest() function to the FrameBuffer::Private class. This allows hiding the setRequest() function from the public API, removing one todo item. More fields may be moved later. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
144 lines
3.1 KiB
C++
144 lines
3.1 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2020, Google Inc.
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*
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* frames.cpp - Intel IPU3 Frames helper
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*/
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#include "frames.h"
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#include <libcamera/framebuffer.h>
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#include <libcamera/request.h>
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#include "libcamera/internal/framebuffer.h"
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#include "libcamera/internal/pipeline_handler.h"
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#include "libcamera/internal/v4l2_videodevice.h"
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namespace libcamera {
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LOG_DECLARE_CATEGORY(IPU3)
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IPU3Frames::IPU3Frames()
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{
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}
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void IPU3Frames::init(const std::vector<std::unique_ptr<FrameBuffer>> ¶mBuffers,
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const std::vector<std::unique_ptr<FrameBuffer>> &statBuffers)
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{
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for (const std::unique_ptr<FrameBuffer> &buffer : paramBuffers)
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availableParamBuffers_.push(buffer.get());
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for (const std::unique_ptr<FrameBuffer> &buffer : statBuffers)
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availableStatBuffers_.push(buffer.get());
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frameInfo_.clear();
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}
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void IPU3Frames::clear()
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{
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availableParamBuffers_ = {};
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availableStatBuffers_ = {};
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}
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IPU3Frames::Info *IPU3Frames::create(Request *request)
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{
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unsigned int id = request->sequence();
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if (availableParamBuffers_.empty()) {
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LOG(IPU3, Debug) << "Parameters buffer underrun";
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return nullptr;
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}
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if (availableStatBuffers_.empty()) {
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LOG(IPU3, Debug) << "Statistics buffer underrun";
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return nullptr;
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}
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FrameBuffer *paramBuffer = availableParamBuffers_.front();
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FrameBuffer *statBuffer = availableStatBuffers_.front();
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paramBuffer->_d()->setRequest(request);
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statBuffer->_d()->setRequest(request);
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availableParamBuffers_.pop();
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availableStatBuffers_.pop();
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/* \todo Remove the dynamic allocation of Info */
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std::unique_ptr<Info> info = std::make_unique<Info>();
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info->id = id;
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info->request = request;
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info->rawBuffer = nullptr;
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info->paramBuffer = paramBuffer;
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info->statBuffer = statBuffer;
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info->paramDequeued = false;
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info->metadataProcessed = false;
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frameInfo_[id] = std::move(info);
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return frameInfo_[id].get();
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}
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void IPU3Frames::remove(IPU3Frames::Info *info)
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{
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/* Return params and stat buffer for reuse. */
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availableParamBuffers_.push(info->paramBuffer);
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availableStatBuffers_.push(info->statBuffer);
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/* Delete the extended frame information. */
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frameInfo_.erase(info->id);
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}
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bool IPU3Frames::tryComplete(IPU3Frames::Info *info)
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{
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Request *request = info->request;
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if (request->hasPendingBuffers())
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return false;
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if (!info->metadataProcessed)
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return false;
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if (!info->paramDequeued)
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return false;
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remove(info);
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bufferAvailable.emit();
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return true;
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}
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IPU3Frames::Info *IPU3Frames::find(unsigned int id)
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{
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const auto &itInfo = frameInfo_.find(id);
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if (itInfo != frameInfo_.end())
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return itInfo->second.get();
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LOG(IPU3, Fatal) << "Can't find tracking information for frame " << id;
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return nullptr;
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}
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IPU3Frames::Info *IPU3Frames::find(FrameBuffer *buffer)
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{
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for (auto const &itInfo : frameInfo_) {
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Info *info = itInfo.second.get();
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for (auto const itBuffers : info->request->buffers())
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if (itBuffers.second == buffer)
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return info;
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if (info->rawBuffer == buffer || info->paramBuffer == buffer ||
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info->statBuffer == buffer)
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return info;
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}
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LOG(IPU3, Fatal) << "Can't find tracking information from buffer";
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return nullptr;
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}
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} /* namespace libcamera */
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