diff options
author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2022-10-20 00:44:55 +0300 |
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committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2022-10-20 13:36:25 +0300 |
commit | 84ad104499d9efc0253dae1a60ee070ed375ad95 (patch) | |
tree | d10fd53eb79cebb28fa3f72b18b46dddb6382b83 /src/cam/image.cpp | |
parent | daf3f4b59f4ea0ecb42c6a39fe909f071d3a2842 (diff) |
Move test applications to src/apps/
The cam and qcam test application share code, currently through a crude
hack that references the cam source files directly from the qcam
meson.build file. To prepare for the introduction of hosting that code
in a static library, move all applications to src/apps/.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'src/cam/image.cpp')
-rw-r--r-- | src/cam/image.cpp | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/src/cam/image.cpp b/src/cam/image.cpp deleted file mode 100644 index fe2cc6da..00000000 --- a/src/cam/image.cpp +++ /dev/null @@ -1,109 +0,0 @@ -/* SPDX-License-Identifier: LGPL-2.1-or-later */ -/* - * Copyright (C) 2021, Ideas on Board Oy - * - * image.cpp - Multi-planar image with access to pixel data - */ - -#include "image.h" - -#include <assert.h> -#include <errno.h> -#include <iostream> -#include <map> -#include <string.h> -#include <sys/mman.h> -#include <unistd.h> - -using namespace libcamera; - -std::unique_ptr<Image> Image::fromFrameBuffer(const FrameBuffer *buffer, MapMode mode) -{ - std::unique_ptr<Image> image{ new Image() }; - - assert(!buffer->planes().empty()); - - int mmapFlags = 0; - - if (mode & MapMode::ReadOnly) - mmapFlags |= PROT_READ; - - if (mode & MapMode::WriteOnly) - mmapFlags |= PROT_WRITE; - - struct MappedBufferInfo { - uint8_t *address = nullptr; - size_t mapLength = 0; - size_t dmabufLength = 0; - }; - std::map<int, MappedBufferInfo> mappedBuffers; - - for (const FrameBuffer::Plane &plane : buffer->planes()) { - const int fd = plane.fd.get(); - if (mappedBuffers.find(fd) == mappedBuffers.end()) { - const size_t length = lseek(fd, 0, SEEK_END); - mappedBuffers[fd] = MappedBufferInfo{ nullptr, 0, length }; - } - - const size_t length = mappedBuffers[fd].dmabufLength; - - if (plane.offset > length || - plane.offset + plane.length > length) { - std::cerr << "plane is out of buffer: buffer length=" - << length << ", plane offset=" << plane.offset - << ", plane length=" << plane.length - << std::endl; - return nullptr; - } - size_t &mapLength = mappedBuffers[fd].mapLength; - mapLength = std::max(mapLength, - static_cast<size_t>(plane.offset + plane.length)); - } - - for (const FrameBuffer::Plane &plane : buffer->planes()) { - const int fd = plane.fd.get(); - auto &info = mappedBuffers[fd]; - if (!info.address) { - void *address = mmap(nullptr, info.mapLength, mmapFlags, - MAP_SHARED, fd, 0); - if (address == MAP_FAILED) { - int error = -errno; - std::cerr << "Failed to mmap plane: " - << strerror(-error) << std::endl; - return nullptr; - } - - info.address = static_cast<uint8_t *>(address); - image->maps_.emplace_back(info.address, info.mapLength); - } - - image->planes_.emplace_back(info.address + plane.offset, plane.length); - } - - return image; -} - -Image::Image() = default; - -Image::~Image() -{ - for (Span<uint8_t> &map : maps_) - munmap(map.data(), map.size()); -} - -unsigned int Image::numPlanes() const -{ - return planes_.size(); -} - -Span<uint8_t> Image::data(unsigned int plane) -{ - assert(plane <= planes_.size()); - return planes_[plane]; -} - -Span<const uint8_t> Image::data(unsigned int plane) const -{ - assert(plane <= planes_.size()); - return planes_[plane]; -} |