NekoCWD/libcamera
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libcamera: buffer: Remove copyFrom()

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There are no user left of the copyFrom() operation, remove it.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Niklas Söderlund 2020-09-21 20:24:36 +02:00
parent 39798e8777
commit f999ee85fa
2 changed files with 0 additions and 61 deletions
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2
include/libcamera/buffer.h
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@ -57,8 +57,6 @@ public:
unsigned int cookie() const { return cookie_; }
void setCookie(unsigned int cookie) { cookie_ = cookie; }
int copyFrom(const FrameBuffer *src);
private:
friend class Request; /* Needed to update request_. */
friend class V4L2VideoDevice; /* Needed to update metadata_. */

59
src/libcamera/buffer.cpp
View file

@ -226,65 +226,6 @@ FrameBuffer::FrameBuffer(const std::vector<Plane> &planes, unsigned int cookie)
* core never modifies the buffer cookie.
*/
/**
* \brief Copy the contents from another buffer
* \param[in] src FrameBuffer to copy
*
* Copy the buffer contents and metadata from \a src to this buffer. The
* destination FrameBuffer shall have the same number of planes as the source
* buffer, and each destination plane shall be larger than or equal to the
* corresponding source plane.
*
* The complete metadata of the source buffer is copied to the destination
* buffer. If an error occurs during the copy, the destination buffer's metadata
* status is set to FrameMetadata::FrameError, and other metadata fields are not
* modified.
*
* The operation is performed using memcpy() so is very slow, users needs to
* consider this before copying buffers.
*
* \return 0 on success or a negative error code otherwise
*/
int FrameBuffer::copyFrom(const FrameBuffer *src)
{
if (planes_.size() != src->planes_.size()) {
LOG(Buffer, Error) << "Different number of planes";
metadata_.status = FrameMetadata::FrameError;
return -EINVAL;
}
for (unsigned int i = 0; i < planes_.size(); i++) {
if (planes_[i].length < src->planes_[i].length) {
LOG(Buffer, Error) << "Plane " << i << " is too small";
metadata_.status = FrameMetadata::FrameError;
return -EINVAL;
}
}
MappedFrameBuffer source(src, PROT_READ);
MappedFrameBuffer destination(this, PROT_WRITE);
if (!source.isValid()) {
LOG(Buffer, Error) << "Failed to map source planes";
return -EINVAL;
}
if (!destination.isValid()) {
LOG(Buffer, Error) << "Failed to map destination planes";
return -EINVAL;
}
for (unsigned int i = 0; i < planes_.size(); i++) {
memcpy(destination.maps()[i].data(),
source.maps()[i].data(),
source.maps()[i].size());
}
metadata_ = src->metadata_;
return 0;
}
/**
* \class MappedBuffer
* \brief Provide an interface to support managing memory mapped buffers