src/cam/sdl_texture_mjpg.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2020, Google Inc.
 *
 * libcamera internal MappedBuffer tests
 */

#include <iostream>

#include <libcamera/framebuffer_allocator.h>

#include "libcamera/internal/mapped_framebuffer.h"

#include "camera_test.h"
#include "test.h"

using namespace libcamera;
using namespace std;

namespace {

class MappedBufferTest : public CameraTest, public Test
{
public:
	MappedBufferTest()
		: CameraTest("platform/vimc.0 Sensor B")
	{
	}

protected:
	int init() override
	{
		if (status_ != TestPass)
			return status_;

		config_ = camera_->generateConfiguration({ StreamRole::VideoRecording });
		if (!config_ || config_->size() != 1) {
			cout << "Failed to generate default configuration" << endl;
			return TestFail;
		}

		allocator_ = new FrameBufferAllocator(camera_);

		StreamConfiguration &cfg = config_->at(0);

		if (camera_->acquire()) {
			cout << "Failed to acquire the camera" << endl;
			return TestFail;
		}

		if (camera_->configure(config_.get())) {
			cout << "Failed to set default configuration" << endl;
			return TestFail;
		}

		stream_ = cfg.stream();

		int ret = allocator_->allocate(stream_);
		if (ret < 0)
			return TestFail;

		return TestPass;
	}

	void cleanup() override
	{
		delete allocator_;
	}

	int run() override
	{
		const std::unique_ptr<FrameBuffer> &buffer = allocator_->buffers(stream_).front();
		std::vector<MappedBuffer> maps;

		MappedFrameBuffer map(buffer.get(), MappedFrameBuffer::MapFlag::Read);
		if (!map.isValid()) {
			cout << "Failed to successfully map buffer" << endl;
			return TestFail;
		}

		/* Make sure we can move it. */
		maps.emplace_back(std::move(map));

		/* But copying is prevented, it would cause double-unmap. */
		// MappedFrameBuffer map_copy = map;

		/* Local map should be invalid (after move). */
		if (map.isValid()) {
			cout << "Post-move map should not be valid" << endl;
			return TestFail;
		}

		/* Test for multiple successful maps on the same buffer. */
		MappedFrameBuffer write_map(buffer.get(), MappedFrameBuffer::MapFlag::Write);
		if (!write_map.isValid()) {
			cout << "Failed to map write buffer" << endl;
			return TestFail;
		}

		MappedFrameBuffer rw_map(buffer.get(), MappedFrameBuffer::MapFlag::ReadWrite);
		if (!rw_map.isValid()) {
			cout << "Failed to map RW buffer" << endl;
			return TestFail;
		}

		return TestPass;
	}

private:
	std::unique_ptr<CameraConfiguration> config_;
	FrameBufferAllocator *allocator_;
	Stream *stream_;
};

} /* namespace */

TEST_REGISTER(MappedBufferTest)
Age	Commit message (Collapse)	Author
2022-05-23	cam: sdl_sink: Add MJPG support to SDL sink	Eric Curtin
	So we have at least two supported capturing pixel formats (although many possible output pixel formats thanks to SDL conversion). MJPG support only built in if SDL2_image is available, provides decompression. Signed-off-by: Eric Curtin <ecurtin@redhat.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>