/*-------------------------------------------------------------------------
* Vulkan Conformance Tests
* ------------------------
*
* Copyright (c) 2018 Advanced Micro Devices, Inc.
* Copyright (c) 2018 The Khronos Group Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*//*!
* \file
* \brief VK_KHR_driver_properties tests
*//*--------------------------------------------------------------------*/

#include "vktApiDriverPropertiesTests.hpp"
#include "vktTestGroupUtil.hpp"
#include "vktTestCaseUtil.hpp"
#include "vkQueryUtil.hpp"
#include "vkTypeUtil.hpp"
#include "vkKnownDriverIds.inl"

using namespace vk;

namespace vkt
{
namespace api
{
namespace
{

enum TestType
{
	TEST_TYPE_DRIVER_ID_MATCH			= 0,
	TEST_TYPE_NAME_IS_NOT_EMPTY,
	TEST_TYPE_NAME_ZERO_TERMINATED,
	TEST_TYPE_INFO_ZERO_TERMINATED,
	TEST_TYPE_VERSION,
};

static const VkConformanceVersion knownConformanceVersions[] =
{
#ifndef CTS_USES_VULKANSC
	makeConformanceVersion(1, 2, 7, 1),
	makeConformanceVersion(1, 2, 7, 0),
	makeConformanceVersion(1, 2, 6, 2),
	makeConformanceVersion(1, 2, 6, 1),
	makeConformanceVersion(1, 2, 6, 0),
	makeConformanceVersion(1, 2, 5, 2),
	makeConformanceVersion(1, 2, 5, 1),
	makeConformanceVersion(1, 2, 5, 0),
	makeConformanceVersion(1, 2, 4, 1),
	makeConformanceVersion(1, 2, 4, 0),
	makeConformanceVersion(1, 2, 3, 3),
	makeConformanceVersion(1, 2, 3, 2),
	makeConformanceVersion(1, 2, 3, 1),
	makeConformanceVersion(1, 2, 3, 0),
	makeConformanceVersion(1, 2, 2, 2),
	makeConformanceVersion(1, 2, 2, 1),
	makeConformanceVersion(1, 2, 2, 0),
	makeConformanceVersion(1, 2, 1, 2),
	makeConformanceVersion(1, 2, 1, 1),
	makeConformanceVersion(1, 2, 1, 0),
	makeConformanceVersion(1, 2, 0, 2),
	makeConformanceVersion(1, 2, 0, 1),
	makeConformanceVersion(1, 2, 0, 0),
	makeConformanceVersion(1, 1, 6, 3),
	makeConformanceVersion(1, 1, 6, 2),
	makeConformanceVersion(1, 1, 6, 1),
	makeConformanceVersion(1, 1, 6, 0),
	makeConformanceVersion(1, 1, 5, 2),
	makeConformanceVersion(1, 1, 5, 1),
	makeConformanceVersion(1, 1, 5, 0),
	makeConformanceVersion(1, 1, 4, 3),
	makeConformanceVersion(1, 1, 4, 2),
	makeConformanceVersion(1, 1, 4, 1),
	makeConformanceVersion(1, 1, 4, 0),
	makeConformanceVersion(1, 1, 3, 3),
	makeConformanceVersion(1, 1, 3, 2),
	makeConformanceVersion(1, 1, 3, 1),
	makeConformanceVersion(1, 1, 3, 0),
#else
	makeConformanceVersion(1, 0, 0, 0),
#endif // CTS_USES_VULKANSC
};

DE_INLINE bool isNullTerminated(const char* str, const deUint32 maxSize)
{
	return deStrnlen(str, maxSize) < maxSize;
}

DE_INLINE bool operator==(const VkConformanceVersion& a, const VkConformanceVersion& b)
{
	return ((a.major == b.major)		&&
			(a.minor == b.minor)		&&
			(a.subminor == b.subminor)	&&
			(a.patch == b.patch));
}

void checkSupport (Context& context, const TestType config)
{
	DE_UNREF(config);
	context.requireDeviceFunctionality("VK_KHR_driver_properties");
}

void testDriverMatch (const VkPhysicalDeviceDriverProperties& deviceDriverProperties)
{
	for (deUint32 driverNdx = 0; driverNdx < DE_LENGTH_OF_ARRAY(driverIds); driverNdx++)
	{
		if (deviceDriverProperties.driverID == driverIds[driverNdx].id)
			return;
	}

	TCU_FAIL("Driver ID did not match any known driver");
}

void testNameIsNotEmpty (const VkPhysicalDeviceDriverProperties& deviceDriverProperties)
{
	if (deviceDriverProperties.driverName[0] == 0)
		TCU_FAIL("Driver name is empty");
}

void testNameZeroTerminated (const VkPhysicalDeviceDriverProperties& deviceDriverProperties)
{
	if (!isNullTerminated(deviceDriverProperties.driverName, VK_MAX_DRIVER_NAME_SIZE))
		TCU_FAIL("Driver name is not a null-terminated string");
}

void testInfoZeroTerminated (const VkPhysicalDeviceDriverProperties& deviceDriverProperties)
{
	if (!isNullTerminated(deviceDriverProperties.driverInfo, VK_MAX_DRIVER_INFO_SIZE))
		TCU_FAIL("Driver info is not a null-terminated string");
}

void testVersion (const VkPhysicalDeviceDriverProperties& deviceDriverProperties, deUint32 usedApiVersion)
{
	const deUint32 apiMajorVersion = VK_API_VERSION_MAJOR(usedApiVersion);
	const deUint32 apiMinorVersion = VK_API_VERSION_MINOR(usedApiVersion);

	if (deviceDriverProperties.conformanceVersion.major < apiMajorVersion ||
		(deviceDriverProperties.conformanceVersion.major == apiMajorVersion &&
		 deviceDriverProperties.conformanceVersion.minor < apiMinorVersion))
	{
		TCU_FAIL("Wrong driver conformance version (older than used API version)");
	}

	for (const VkConformanceVersion*	pConformanceVersion  = knownConformanceVersions;
										pConformanceVersion != DE_ARRAY_END(knownConformanceVersions);
									  ++pConformanceVersion)
	{
		if (deviceDriverProperties.conformanceVersion == *pConformanceVersion)
			return;
	}

	TCU_FAIL("Wrong driver conformance version (not known)");
}

tcu::TestStatus testQueryProperties (Context& context, const TestType testType)
{
	// Query the driver properties
	const VkPhysicalDevice				physDevice			= context.getPhysicalDevice();
	const int							memsetPattern		= 0xaa;
	VkPhysicalDeviceProperties2			deviceProperties2;
	VkPhysicalDeviceDriverProperties	deviceDriverProperties;

	deMemset(&deviceDriverProperties, memsetPattern, sizeof(deviceDriverProperties));
	deviceDriverProperties.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DRIVER_PROPERTIES;
	deviceDriverProperties.pNext = DE_NULL;

	deMemset(&deviceProperties2, memsetPattern, sizeof(deviceProperties2));
	deviceProperties2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
	deviceProperties2.pNext = &deviceDriverProperties;

	context.getInstanceInterface().getPhysicalDeviceProperties2(physDevice, &deviceProperties2);

	// Verify the returned values
	switch (testType)
	{
		case TEST_TYPE_DRIVER_ID_MATCH:			testDriverMatch			(deviceDriverProperties);								break;
		case TEST_TYPE_NAME_IS_NOT_EMPTY:		testNameIsNotEmpty		(deviceDriverProperties);								break;
		case TEST_TYPE_NAME_ZERO_TERMINATED:	testNameZeroTerminated	(deviceDriverProperties);								break;
		case TEST_TYPE_INFO_ZERO_TERMINATED:	testInfoZeroTerminated	(deviceDriverProperties);								break;
		case TEST_TYPE_VERSION:					testVersion				(deviceDriverProperties, context.getUsedApiVersion());	break;
		default:								TCU_THROW(InternalError, "Unknown test type specified");
	}

	return tcu::TestStatus::pass("Pass");
}

void createTestCases (tcu::TestCaseGroup* group)
{
	addFunctionCase(group, "driver_id_match",		"Check driverID is supported",					checkSupport,	testQueryProperties,	TEST_TYPE_DRIVER_ID_MATCH);
	addFunctionCase(group, "name_is_not_empty",		"Check name field is not empty",				checkSupport,	testQueryProperties,	TEST_TYPE_NAME_IS_NOT_EMPTY);
	addFunctionCase(group, "name_zero_terminated",	"Check name field is zero-terminated",			checkSupport,	testQueryProperties,	TEST_TYPE_NAME_ZERO_TERMINATED);
	addFunctionCase(group, "info_zero_terminated",	"Check info field is zero-terminated",			checkSupport,	testQueryProperties,	TEST_TYPE_INFO_ZERO_TERMINATED);
	addFunctionCase(group, "conformance_version",	"Check conformanceVersion reported by driver",	checkSupport,	testQueryProperties,	TEST_TYPE_VERSION);
}

} // anonymous

tcu::TestCaseGroup*	createDriverPropertiesTests(tcu::TestContext& testCtx)
{
	return createTestGroup(testCtx, "driver_properties", "VK_KHR_driver_properties tests", createTestCases);
}

} // api
} // vkt