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ipa: vimc: Map and unmap buffers

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VIMC pipeline handler has dmabuf-backed mock FrameBuffers which are
specifically targetted mimicking IPA buffers (parameter and statistics).
Map these mock buffers to the VIMC IPA that would enable exercising IPA
IPC code paths. This will provide leverage to our test suite to test
IPA IPC code paths, which are common to various platforms.

Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Umang Jain
2021-08-14 10:39:11 +05:30
parent aad68099e5
commit 3c5732d04a
3 changed files with 44 additions and 0 deletions
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src/libcamera/pipeline/vimc/vimc.cpp
+14
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@@ -334,6 +334,14 @@ int PipelineHandlerVimc::start(Camera *camera, [[maybe_unused]] const ControlLis
if (ret < 0)
return ret;
/* Map the mock IPA buffers to VIMC IPA to exercise IPC code paths. */
std::vector<IPABuffer> ipaBuffers;
for (auto [i, buffer] : utils::enumerate(data->mockIPABufs_)) {
buffer->setCookie(i + 1);
ipaBuffers.emplace_back(buffer->cookie(), buffer->planes());
}
data->ipa_->mapBuffers(ipaBuffers);
ret = data->ipa_->start();
if (ret) {
data->video_->releaseBuffers();
@@ -354,7 +362,13 @@ void PipelineHandlerVimc::stop(Camera *camera)
{
VimcCameraData *data = cameraData(camera);
data->video_->streamOff();
std::vector<unsigned int> ids;
for (const std::unique_ptr<FrameBuffer> &buffer : data->mockIPABufs_)
ids.push_back(buffer->cookie());
data->ipa_->unmapBuffers(ids);
data->ipa_->stop();
data->video_->releaseBuffers();
}