ObjFW  Artifact [5e35103519]

Artifact 5e35103519b6c5b4ffb11872faf000394107d43284b201ea4901f4edfc72e1a4:

• File tests/OFMatrix4x4Tests.m — part of check-in [1af54eb2c2] at 2024-04-02 03:21:12 on branch trunk — Only align OFVector4D where necessary

  Changing the alignment of OFVector4D globally (as was done previously)
  would have technically been an ABI break in extremely rare cases.
  However, since we only need the alignment for the methods added after
  1.0, it's better to only have the alignment there and get back to full
  ABI compatibility with 1.0. (user: js, size: 3736) [annotate] [blame] [check-ins using]

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "ObjFW.h"
#import "ObjFWTest.h"

@interface OFMatrix4x4Tests: OTTestCase
{
	OFMatrix4x4 *_matrix;
}
@end

@implementation OFMatrix4x4Tests
- (void)setUp
{
	[super setUp];

	_matrix = [[OFMatrix4x4 alloc] initWithValues: (const float [4][4]){
		{  1,  2,  3,  4 },
		{  5,  6,  7,  8 },
		{  9, 10, 11, 12 },
		{ 13, 14, 15, 16 }
	}];
}

- (void)dealloc
{
	[_matrix release];

	[super dealloc];
}

- (void)testIdentityMatrix
{
	OTAssertEqual(memcmp([[OFMatrix4x4 identityMatrix] values],
	    (const float [4][4]){
		{ 1, 0, 0, 0 },
		{ 0, 1, 0, 0 },
		{ 0, 0, 1, 0 },
		{ 0, 0, 0, 1 }
	    }, 16 * sizeof(float)),
	    0);
}

- (void)testDescription
{
	OTAssertEqualObjects(_matrix.description,
	    @"<OFMatrix4x4: {\n"
	    @"\t1 2 3 4\n"
	    @"\t5 6 7 8\n"
	    @"\t9 10 11 12\n"
	    @"\t13 14 15 16\n"
	    @"}>");
}

- (void)testIsEqual
{
	OTAssertEqualObjects([OFMatrix4x4 identityMatrix],
	    ([OFMatrix4x4 matrixWithValues: (const float [4][4]){
		{ 1, 0, 0, 0 },
		{ 0, 1, 0, 0 },
		{ 0, 0, 1, 0 },
		{ 0, 0, 0, 1 }
	    }]));
}

- (void)testHash
{
	OTAssertEqual([[OFMatrix4x4 identityMatrix] hash],
	    [([OFMatrix4x4 matrixWithValues: (const float [4][4]){
		{ 1, 0, 0, 0 },
		{ 0, 1, 0, 0 },
		{ 0, 0, 1, 0 },
		{ 0, 0, 0, 1 }
	    }]) hash]);
}

- (void)testCopy
{
	OTAssertEqualObjects([[_matrix copy] autorelease], _matrix);
}

- (void)testMultiplyWithMatrix
{
	OFMatrix4x4 *matrix;

	matrix = [[_matrix copy] autorelease];
	[matrix multiplyWithMatrix: [OFMatrix4x4 identityMatrix]];
	OTAssertEqualObjects(matrix, _matrix);

	matrix = [OFMatrix4x4 matrixWithValues: (const float [4][4]){
		{  100,  200,  300,  400 },
		{  500,  600,  700,  800 },
		{  900, 1000, 1100, 1200 },
		{ 1300, 1400, 1500, 1600 }
	}];
	[matrix multiplyWithMatrix: _matrix];
	OTAssertEqualObjects(matrix,
	    ([OFMatrix4x4 matrixWithValues: (const float [4][4]){
		{  9000, 10000, 11000, 12000 },
		{ 20200, 22800, 25400, 28000 },
		{ 31400, 35600, 39800, 44000 },
		{ 42600, 48400, 54200, 60000 }
	    }]));
}

- (void)testTranslateWithVector
{
	OFMatrix4x4 *matrix = [OFMatrix4x4 identityMatrix];
	OFVector4D point;

	[matrix translateWithVector: OFMakeVector3D(1, 2, 3)];

	point = [matrix transformedVector: OFMakeVector4D(2, 3, 4, 1)];
	OTAssertEqual(point.x, 3);
	OTAssertEqual(point.y, 5);
	OTAssertEqual(point.z, 7);
	OTAssertEqual(point.w, 1);
}

- (void)testScaleWithVector
{
	OFMatrix4x4 *matrix = [OFMatrix4x4 identityMatrix];
	OFVector4D point;

	[matrix translateWithVector: OFMakeVector3D(1, 2, 3)];
	[matrix scaleWithVector: OFMakeVector3D(-1, 0.5f, 2)];

	point = [matrix transformedVector: OFMakeVector4D(2, 3, 4, 1)];
	OTAssertEqual(point.x, -3);
	OTAssertEqual(point.y, 2.5);
	OTAssertEqual(point.z, 14);
	OTAssertEqual(point.w, 1);
}

- (void)testTransformVectorsCount
{
	OF_ALIGN(16) OFVector4D points[2] = {{ 1, 2, 3, 1 }, { 7, 8, 9, 2 }};

	[_matrix transformVectors: points count: 2];

	OTAssertEqual(points[0].x, 18);
	OTAssertEqual(points[0].y, 46);
	OTAssertEqual(points[0].z, 74);
	OTAssertEqual(points[0].w, 102);
	OTAssertEqual(points[1].x, 58);
	OTAssertEqual(points[1].y, 162);
	OTAssertEqual(points[1].z, 266);
	OTAssertEqual(points[1].w, 370);
}
@end