/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2019, Google Inc. * * Signal test */ #include #include #include #include #include "test.h" using namespace std; using namespace libcamera; static int valueStatic_ = 0; static void slotStatic(int value) { valueStatic_ = value; } static int slotStaticReturn() { return 0; } class SlotObject : public Object { public: void slot() { valueStatic_ = 1; } }; class BaseClass { public: /* * A virtual function is required in the base class, otherwise the * compiler will always store Object before BaseClass in memory. */ virtual ~BaseClass() { } unsigned int data_[32]; }; class SlotMulti : public BaseClass, public Object { public: void slot() { valueStatic_ = 1; } }; class SignalTest : public Test { protected: void slotVoid() { called_ = true; } void slotDisconnect() { called_ = true; signalVoid_.disconnect(this, &SignalTest::slotDisconnect); } void slotInteger1(int value) { values_[0] = value; } void slotInteger2(int value) { values_[1] = value; } void slotMultiArgs(int value, const std::string &name) { values_[2] = value; name_ = name; } int slotReturn() { return 0; } int init() { return 0; } int run() { /* ----------------- Signal -> !Object tests ---------------- */ /* Test signal emission and reception. */ called_ = false; signalVoid_.connect(this, &SignalTest::slotVoid); signalVoid_.emit(); if (!called_) { cout << "Signal emission test failed" << endl; return TestFail; } /* Test signal with parameters. */ values_[2] = 0; name_.clear(); signalMultiArgs_.connect(this, &SignalTest::slotMultiArgs); signalMultiArgs_.emit(42, "H2G2"); if (values_[2] != 42 || name_ != "H2G2") { cout << "Signal parameters test failed" << endl; return TestFail; } /* Test signal connected to multiple slots. */ memset(values_, 0, sizeof(values_)); valueStatic_ = 0; signalInt_.connect(this, &SignalTest::slotInteger1); signalInt_.connect(this, &SignalTest::slotInteger2); signalInt_.connect(&slotStatic); signalInt_.emit(42); if (values_[0] != 42 || values_[1] != 42 || values_[2] != 0 || valueStatic_ != 42) { cout << "Signal multi slot test failed" << endl; return TestFail; } /* Test disconnection of a single slot. */ memset(values_, 0, sizeof(values_)); signalInt_.disconnect(this, &SignalTest::slotInteger2); signalInt_.emit(42); if (values_[0] != 42 || values_[1] != 0 || values_[2] != 0) { cout << "Signal slot disconnection test failed" << endl; return TestFail; } /* Test disconnection of a whole object. */ memset(values_, 0, sizeof(values_)); signalInt_.disconnect(this); signalInt_.emit(42); if (values_[0] != 0 || values_[1] != 0 || values_[2] != 0) { cout << "Signal object disconnection test failed" << endl; return TestFail; } /* Test disconnection of a whole signal. */ memset(values_, 0, sizeof(values_)); signalInt_.connect(this, &SignalTest::slotInteger1); signalInt_.connect(this, &SignalTest::slotInteger2); signalInt_.disconnect(); signalInt_.emit(42); if (values_[0] != 0 || values_[1] != 0 || values_[2] != 0) { cout << "Signal object disconnection test failed" << endl; return TestFail; } /* Test disconnection from slot. */ signalVoid_.disconnect(); signalVoid_.connect(this, &SignalTest::slotDisconnect); signalVoid_.emit(); called_ = false; signalVoid_.emit(); if (called_) { cout << "Signal disconnection from slot test failed" << endl; return TestFail; } /* * Test connecting to slots that return a value. This targets * compilation, there's no need to check runtime results. */ signalVoid_.connect(slotStaticReturn); signalVoid_.connect(this, &SignalTest::slotReturn); /* Test signal connection to a lambda. */ int value = 0; signalInt_.connect(this, [&](int v) { value = v; }); signalInt_.emit(42); if (value != 42) { cout << "Signal connection to lambda failed" << endl; return TestFail; } signalInt_.disconnect(this); signalInt_.emit(0); if (value != 42) { cout << "Signal disconnection from lambda failed" << endl; return TestFail; } /* ----------------- Signal -> Object tests ----------------- */ /* * Test automatic disconnection on object deletion. Connect two * signals to ensure all instances are disconnected. */ signalVoid_.disconnect(); signalVoid2_.disconnect(); SlotObject *slotObject = new SlotObject(); signalVoid_.connect(slotObject, &SlotObject::slot); signalVoid2_.connect(slotObject, &SlotObject::slot); delete slotObject; valueStatic_ = 0; signalVoid_.emit(); signalVoid2_.emit(); if (valueStatic_ != 0) { cout << "Signal disconnection on object deletion test failed" << endl; return TestFail; } /* * Test that signal deletion disconnects objects. This shall * not generate any valgrind warning. */ Signal<> *dynamicSignal = new Signal<>(); slotObject = new SlotObject(); dynamicSignal->connect(slotObject, &SlotObject::slot); delete dynamicSignal; delete slotObject; /* * Test that signal manual disconnection from Object removes * the signal for the object. This shall not generate any * valgrind warning. */ dynamicSignal = new Signal<>(); slotObject = new SlotObject(); dynamicSignal->connect(slotObject, &SlotObject::slot); dynamicSignal->disconnect(slotObject); delete dynamicSignal; delete slotObject; /* * Test that signal manual disconnection from all slots removes * the signal for the object. This shall not generate any * valgrind warning. */ dynamicSignal = new Signal<>(); slotObject = new SlotObject(); dynamicSignal->connect(slotObject, &SlotObject::slot); dynamicSignal->disconnect(); delete dynamicSignal; delete slotObject; /* Exercise the Object slot code paths. */ slotObject = new SlotObject(); signalVoid_.connect(slotObject, &SlotObject::slot); valueStatic_ = 0; signalVoid_.emit(); if (valueStatic_ == 0) { cout << "Signal delivery for Object test failed" << endl; return TestFail; } delete slotObject; /* Test signal connection to a lambda. */ slotObject = new SlotObject(); value = 0; signalInt_.connect(slotObject, [&](int v) { value = v; }); signalInt_.emit(42); if (value != 42) { cout << "Signal connection to Object lambda failed" << endl; return TestFail; } signalInt_.disconnect(slotObject); signalInt_.emit(0); if (value != 42) { cout << "Signal disconnection from Object lambda failed" << endl; return TestFail; } delete slotObject; /* --------- Signal -> Object (multiple inheritance) -------- */ /* * Test automatic disconnection on object deletion. Connect two * signals to ensure all instances are disconnected. */ signalVoid_.disconnect(); signalVoid2_.disconnect(); SlotMulti *slotMulti = new SlotMulti(); signalVoid_.connect(slotMulti, &SlotMulti::slot); signalVoid2_.connect(slotMulti, &SlotMulti::slot); delete slotMulti; valueStatic_ = 0; signalVoid_.emit(); signalVoid2_.emit(); if (valueStatic_ != 0) { cout << "Signal disconnection on object deletion test failed" << endl; return TestFail; } /* * Test that signal deletion disconnects objects. This shall * not generate any valgrind warning. */ dynamicSignal = new Signal<>(); slotMulti = new SlotMulti(); dynamicSignal->connect(slotMulti, &SlotMulti::slot); delete dynamicSignal; delete slotMulti; /* Exercise the Object slot code paths. */ slotMulti = new SlotMulti(); signalVoid_.connect(slotMulti, &SlotMulti::slot); valueStatic_ = 0; signalVoid_.emit(); if (valueStatic_ == 0) { cout << "Signal delivery for Object test failed" << endl; return TestFail; } delete slotMulti; return TestPass; } void cleanup() { } private: Signal<> signalVoid_; Signal<> signalVoid2_; Signal signalInt_; Signal signalMultiArgs_; bool called_; int values_[3]; std::string name_; }; TEST_REGISTER(SignalTest) href='#n94'>94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2020, Collabora Ltd.
 *     Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
 *
 * gstlibcamera-utils.c - GStreamer libcamera Utility Function
 */

#include "gstlibcamera-utils.h"

#include <libcamera/formats.h>

using namespace libcamera;

static struct {
	GstVideoFormat gst_format;
	PixelFormat format;
} format_map[] = {
	/* Compressed */
	{ GST_VIDEO_FORMAT_ENCODED, formats::MJPEG },

	/* RGB */
	{ GST_VIDEO_FORMAT_RGB, formats::BGR888 },
	{ GST_VIDEO_FORMAT_BGR, formats::RGB888 },
	{ GST_VIDEO_FORMAT_ARGB, formats::BGRA8888 },

	/* YUV Semiplanar */
	{ GST_VIDEO_FORMAT_NV12, formats::NV12 },
	{ GST_VIDEO_FORMAT_NV21, formats::NV21 },
	{ GST_VIDEO_FORMAT_NV16, formats::NV16 },
	{ GST_VIDEO_FORMAT_NV61, formats::NV61 },
	{ GST_VIDEO_FORMAT_NV24, formats::NV24 },

	/* YUV Planar */
	{ GST_VIDEO_FORMAT_I420, formats::YUV420 },
	{ GST_VIDEO_FORMAT_YV12, formats::YVU420 },
	{ GST_VIDEO_FORMAT_Y42B, formats::YUV422 },

	/* YUV Packed */
	{ GST_VIDEO_FORMAT_UYVY, formats::UYVY },
	{ GST_VIDEO_FORMAT_VYUY, formats::VYUY },
	{ GST_VIDEO_FORMAT_YUY2, formats::YUYV },
	{ GST_VIDEO_FORMAT_YVYU, formats::YVYU },

	/* \todo NV42 is used in libcamera but is not mapped in GStreamer yet. */
};

static GstVideoFormat
pixel_format_to_gst_format(const PixelFormat &format)
{
	for (const auto &item : format_map) {
		if (item.format == format)
			return item.gst_format;
	}
	return GST_VIDEO_FORMAT_UNKNOWN;
}

static PixelFormat
gst_format_to_pixel_format(GstVideoFormat gst_format)
{
	if (gst_format == GST_VIDEO_FORMAT_ENCODED)
		return PixelFormat{};

	for (const auto &item : format_map)
		if (item.gst_format == gst_format)
			return item.format;
	return PixelFormat{};
}

static GstStructure *
bare_structure_from_format(const PixelFormat &format)
{
	GstVideoFormat gst_format = pixel_format_to_gst_format(format);

	if (gst_format == GST_VIDEO_FORMAT_UNKNOWN)
		return nullptr;

	if (gst_format != GST_VIDEO_FORMAT_ENCODED)
		return gst_structure_new("video/x-raw", "format", G_TYPE_STRING,
					 gst_video_format_to_string(gst_format), nullptr);

	switch (format) {
	case formats::MJPEG:
		return gst_structure_new_empty("image/jpeg");
	default:
		return nullptr;
	}
}

GstCaps *
gst_libcamera_stream_formats_to_caps(const StreamFormats &formats)
{
	GstCaps *caps = gst_caps_new_empty();

	for (PixelFormat pixelformat : formats.pixelformats()) {
		g_autoptr(GstStructure) bare_s = bare_structure_from_format(pixelformat);

		if (!bare_s) {
			GST_WARNING("Unsupported DRM format %" GST_FOURCC_FORMAT,
				    GST_FOURCC_ARGS(pixelformat));
			continue;
		}

		for (const Size &size : formats.sizes(pixelformat)) {
			GstStructure *s = gst_structure_copy(bare_s);
			gst_structure_set(s,
					  "width", G_TYPE_INT, size.width,
					  "height", G_TYPE_INT, size.height,
					  nullptr);
			gst_caps_append_structure(caps, s);
		}

		const SizeRange &range = formats.range(pixelformat);
		if (range.hStep && range.vStep) {
			GstStructure *s = gst_structure_copy(bare_s);
			GValue val = G_VALUE_INIT;

			g_value_init(&val, GST_TYPE_INT_RANGE);
			gst_value_set_int_range_step(&val, range.min.width, range.max.width, range.hStep);
			gst_structure_set_value(s, "width", &val);
			gst_value_set_int_range_step(&val, range.min.height, range.max.height, range.vStep);
			gst_structure_set_value(s, "height", &val);
			g_value_unset(&val);

			gst_caps_append_structure(caps, s);
		}
	}

	return caps;
}

GstCaps *
gst_libcamera_stream_configuration_to_caps(const StreamConfiguration &stream_cfg)
{
	GstCaps *caps = gst_caps_new_empty();
	GstStructure *s = bare_structure_from_format(stream_cfg.pixelFormat);

	gst_structure_set(s,
			  "width", G_TYPE_INT, stream_cfg.size.width,
			  "height", G_TYPE_INT, stream_cfg.size.height,
			  nullptr);
	gst_caps_append_structure(caps, s);

	return caps;
}

void
gst_libcamera_configure_stream_from_caps(StreamConfiguration &stream_cfg,
					 GstCaps *caps)
{
	GstVideoFormat gst_format = pixel_format_to_gst_format(stream_cfg.pixelFormat);
	guint i;
	gint best_fixed = -1, best_in_range = -1;
	GstStructure *s;

	/*
	 * These are delta weight computed from:
	 *   ABS(width - stream_cfg.size.width) * ABS(height - stream_cfg.size.height)
	 */
	guint best_fixed_delta = G_MAXUINT;
	guint best_in_range_delta = G_MAXUINT;

	/* First fixate the caps using default configuration value. */
	g_assert(gst_caps_is_writable(caps));

	/* Lookup the structure for a close match to the stream_cfg.size */
	for (i = 0; i < gst_caps_get_size(caps); i++) {
		s = gst_caps_get_structure(caps, i);
		gint width, height;
		guint delta;

		if (gst_structure_has_field_typed(s, "width", G_TYPE_INT) &&
		    gst_structure_has_field_typed(s, "height", G_TYPE_INT)) {
			gst_structure_get_int(s, "width", &width);
			gst_structure_get_int(s, "height", &height);

			delta = ABS(width - (gint)stream_cfg.size.width) * ABS(height - (gint)stream_cfg.size.height);

			if (delta < best_fixed_delta) {
				best_fixed_delta = delta;
				best_fixed = i;
			}
		} else {
			gst_structure_fixate_field_nearest_int(s, "width", stream_cfg.size.width);