test/camera/statemachine.cpp


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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * libcamera Camera API tests
 */

#include <iostream>

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

using namespace std;

namespace {

class Statemachine : public CameraTest, public Test
{
public:
	Statemachine()
		: CameraTest("VIMC Sensor B")
	{
	}

protected:
	int testAvailable()
	{
		/* Test operations which should fail. */
		if (camera_->configure(defconf_.get()) != -EACCES)
			return TestFail;

		if (camera_->createRequest())
			return TestFail;

		if (camera_->start() != -EACCES)
			return TestFail;

		Request request(camera_.get());
		if (camera_->queueRequest(&request) != -EACCES)
			return TestFail;

		if (camera_->stop() != -EACCES)
			return TestFail;

		/* Test operations which should pass. */
		if (camera_->release())
			return TestFail;

		/* Test valid state transitions, end in Acquired state. */
		if (camera_->acquire())
			return TestFail;

		return TestPass;
	}

	int testAcquired()
	{
		/* Test operations which should fail. */
		if (camera_->acquire() != -EBUSY)
			return TestFail;

		if (camera_->createRequest())
			return TestFail;

		if (camera_->start() != -EACCES)
			return TestFail;

		Request request(camera_.get());
		if (camera_->queueRequest(&request) != -EACCES)
			return TestFail;

		if (camera_->stop() != -EACCES)
			return TestFail;

		/* Test valid state transitions, end in Configured state. */
		if (camera_->release())
			return TestFail;

		if (camera_->acquire())
			return TestFail;

		if (camera_->configure(defconf_.get()))
			return TestFail;

		return TestPass;
	}

	int testConfigured()
	{
		/* Test operations which should fail. */
		if (camera_->acquire() != -EBUSY)
			return TestFail;

		Request request1(camera_.get());
		if (camera_->queueRequest(&request1) != -EACCES)
			return TestFail;

		if (camera_->stop() != -EACCES)
			return TestFail;

		/* Test operations which should pass. */
		Request *request2 = camera_->createRequest();
		if (!request2)
			return TestFail;

		/* Never handed to hardware so need to manually delete it. */
		delete request2;

		/* Test valid state transitions, end in Running state. */
		if (camera_->release())
			return TestFail;

		if (camera_->acquire())
			return TestFail;

		if (camera_->configure(defconf_.get()))
			return TestFail;

		/* Use internally allocated buffers. */
		allocator_ = new FrameBufferAllocator(camera_);
		Stream *stream = *camera_->streams().begin();
		if (allocator_->allocate(stream) < 0)
			return TestFail;

		if (camera_->start())
			return TestFail;

		return TestPass;
	}

	int testRuning()
	{
		/* Test operations which should fail. */
		if (camera_->acquire() != -EBUSY)
			return TestFail;

		if (camera_->release() != -EBUSY)
			return TestFail;

		if (camera_->configure(defconf_.get()) != -EACCES)
			return TestFail;

		if (camera_->start() != -EACCES)
			return TestFail;

		/* Test operations which should pass. */
		Request *request = camera_->createRequest();
		if (!request)
			return TestFail;

		Stream *stream = *camera_->streams().begin();
		if (request->addBuffer(stream, allocator_->buffers(stream)[0].get()))
			return TestFail;

		if (camera_->queueRequest(request))
			return TestFail;

		/* Test valid state transitions, end in Available state. */
		if (camera_->stop())
			return TestFail;

		delete allocator_;

		if (camera_->release())
			return TestFail;

		return TestPass;
	}

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

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

		return TestPass;
	}

	int run() override
	{
		if (testAvailable() != TestPass) {
			cout << "State machine in Available state failed" << endl;
			return TestFail;
		}

		if (testAcquired() != TestPass) {
			cout << "State machine in Acquired state failed" << endl;
			return TestFail;
		}

		if (testConfigured() != TestPass) {
			cout << "State machine in Configured state failed" << endl;
			return TestFail;
		}

		if (testRuning() != TestPass) {
			cout << "State machine in Running state failed" << endl;
			return TestFail;
		}

		return TestPass;
	}

	std::unique_ptr<CameraConfiguration> defconf_;
	FrameBufferAllocator *allocator_;
};

} /* namespace */

TEST_REGISTER(Statemachine);
/*
 * Copyright 2011 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef DRM_FOURCC_H
#define DRM_FOURCC_H

#include "drm.h"

#if defined(__cplusplus)
extern "C" {
#endif

/**
 * DOC: overview
 *
 * In the DRM subsystem, framebuffer pixel formats are described using the
 * fourcc codes defined in `include/uapi/drm/drm_fourcc.h`. In addition to the
 * fourcc code, a Format Modifier may optionally be provided, in order to
 * further describe the buffer's format - for example tiling or compression.
 *
 * Format Modifiers
 * ----------------
 *
 * Format modifiers are used in conjunction with a fourcc code, forming a
 * unique fourcc:modifier pair. This format:modifier pair must fully define the
 * format and data layout of the buffer, and should be the only way to describe
 * that particular buffer.
 *
 * Having multiple fourcc:modifier pairs which describe the same layout should
 * be avoided, as such aliases run the risk of different drivers exposing
 * different names for the same data format, forcing userspace to understand
 * that they are aliases.
 *
 * Format modifiers may change any property of the buffer, including the number
 * of planes and/or the required allocation size. Format modifiers are
 * vendor-namespaced, and as such the relationship between a fourcc code and a
 * modifier is specific to the modifer being used. For example, some modifiers
 * may preserve meaning - such as number of planes - from the fourcc code,
 * whereas others may not.
 *
 * Vendors should document their modifier usage in as much detail as
 * possible, to ensure maximum compatibility across devices, drivers and
 * applications.
 *
 * The authoritative list of format modifier codes is found in
 * `include/uapi/drm/drm_fourcc.h`
 */

#define fourcc_code(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | \
				 ((__u32)(c) << 16) | ((__u32)(d) << 24))

#define DRM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */

/* Reserve 0 for the invalid format specifier */
#define DRM_FORMAT_INVALID	0

/* color index */
#define DRM_FORMAT_C8		fourcc_code('C', '8', ' ', ' ') /* [7:0] C */

/* 8 bpp Red */
#define DRM_FORMAT_R8		fourcc_code('R', '8', ' ', ' ') /* [7:0] R */

/* 16 bpp Red */
#define DRM_FORMAT_R16		fourcc_code('R', '1', '6', ' ') /* [15:0] R little endian */

/* 16 bpp RG */
#define DRM_FORMAT_RG88		fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
#define DRM_FORMAT_GR88		fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */

/* 32 bpp RG */
#define DRM_FORMAT_RG1616	fourcc_code('R', 'G', '3', '2') /* [31:0] R:G 16:16 little endian */
#define DRM_FORMAT_GR1616	fourcc_code('G', 'R', '3', '2') /* [31:0] G:R 16:16 little endian */

/* 8 bpp RGB */
#define DRM_FORMAT_RGB332	fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
#define DRM_FORMAT_BGR233	fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */

/* 16 bpp RGB */
#define DRM_FORMAT_XRGB4444	fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */
#define DRM_FORMAT_XBGR4444	fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */
#define DRM_FORMAT_RGBX4444	fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */
#define DRM_FORMAT_BGRX4444	fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */

#define DRM_FORMAT_ARGB4444	fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */
#define DRM_FORMAT_ABGR4444	fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */
#define DRM_FORMAT_RGBA4444	fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */
#define DRM_FORMAT_BGRA4444	fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */

#define DRM_FORMAT_XRGB1555	fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */
#define DRM_FORMAT_XBGR1555	fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */
#define DRM_FORMAT_RGBX5551	fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */
#define DRM_FORMAT_BGRX5551	fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */

#define DRM_FORMAT_ARGB1555	fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */
#define DRM_FORMAT_ABGR1555	fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */
#define DRM_FORMAT_RGBA5551	fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */
#define DRM_FORMAT_BGRA5551	fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */

#define DRM_FORMAT_RGB565	fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */
#define DRM_FORMAT_BGR565	fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */

/* 24 bpp RGB */
#define DRM_FORMAT_RGB888	fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */
#define DRM_FORMAT_BGR888	fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */

/* 32 bpp RGB */
#define DRM_FORMAT_XRGB8888	fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */
#define DRM_FORMAT_XBGR8888	fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */
#define DRM_FORMAT_RGBX8888	fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */
#define DRM_FORMAT_BGRX8888	fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */

#define DRM_FORMAT_ARGB8888	fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */
#define DRM_FORMAT_ABGR8888	fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */
#define DRM_FORMAT_RGBA8888	fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */
#define DRM_FORMAT_BGRA8888	fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */

#define DRM_FORMAT_XRGB2101010	fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */
#define DRM_FORMAT_XBGR2101010	fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */
#define DRM_FORMAT_RGBX1010102	fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */
#define DRM_FORMAT_BGRX1010102	fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */

#define DRM_FORMAT_ARGB2101010	fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */
#define DRM_FORMAT_ABGR2101010	fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */
#define DRM_FORMAT_RGBA1010102	fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
#define DRM_FORMAT_BGRA1010102	fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */

/*
 * Floating point 64bpp RGB
 * IEEE 754-2008 binary16 half-precision float
 * [15:0] sign:exponent:mantissa 1:5:10
 */
#define DRM_FORMAT_XRGB16161616F fourcc_code('X', 'R', '4', 'H') /* [63:0] x:R:G:B 16:16:16:16 little endian */
#define DRM_FORMAT_XBGR16161616F fourcc_code('X', 'B', '4', 'H') /* [63:0] x:B:G:R 16:16:16:16 little endian */

#define DRM_FORMAT_ARGB16161616F fourcc_code('A', 'R', '4', 'H') /* [63:0] A:R:G:B 16:16:16:16 little endian */
#define DRM_FORMAT_ABGR16161616F fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */

/* packed YCbCr */