using NUnit.Framework; using UnityEngine.Experimental.Rendering.Universal; namespace UnityEngine.Rendering.Universal.Tests { internal class PixelPerfectCameraTests { internal class PixelPerfectCameraTestComponent : IPixelPerfectCamera { public int assetsPPU { get; set; } public int refResolutionX { get; set; } public int refResolutionY { get; set; } public bool upscaleRT { get; set; } public bool pixelSnapping { get; set; } public bool cropFrameX { get; set; } public bool cropFrameY { get; set; } public bool stretchFill { get; set; } } internal class CalculateCameraPropertiesResult { public int zoom; public bool useOffscreenRT; public int offscreenRTWidth; public int offscreenRTHeight; public Rect pixelRect; public float orthoSize; public float unitsPerPixel; } private static object[] GetCalculateCameraPropertiesTestCases() { object[] testCaseArray = new object[9]; for (int i = 0; i < testCaseArray.Length; ++i) { PixelPerfectCameraTestComponent testComponent = new PixelPerfectCameraTestComponent(); int screenWidth = 0; int screenHeight = 0; CalculateCameraPropertiesResult expected = new CalculateCameraPropertiesResult(); switch (i) { case 0: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = false; testComponent.pixelSnapping = true; testComponent.cropFrameX = true; testComponent.cropFrameY = true; testComponent.stretchFill = true; screenWidth = 800; screenHeight = 500; expected.zoom = 1; expected.useOffscreenRT = true; expected.offscreenRTWidth = 400; expected.offscreenRTHeight = 300; expected.pixelRect = new Rect(0.0f, 0.0f, 400, 300); expected.orthoSize = 1.5f; expected.unitsPerPixel = 0.01f; break; case 1: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = true; testComponent.pixelSnapping = true; testComponent.cropFrameX = true; testComponent.cropFrameY = true; testComponent.stretchFill = true; screenWidth = 1100; screenHeight = 900; expected.zoom = 2; expected.useOffscreenRT = true; expected.offscreenRTWidth = 400; expected.offscreenRTHeight = 300; expected.pixelRect = new Rect(0.0f, 0.0f, 400, 300); expected.orthoSize = 1.5f; expected.unitsPerPixel = 0.01f; break; case 2: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = true; testComponent.pixelSnapping = true; testComponent.cropFrameX = false; testComponent.cropFrameY = true; testComponent.stretchFill = false; screenWidth = 400; screenHeight = 250; expected.zoom = 1; expected.useOffscreenRT = true; expected.offscreenRTWidth = 400; expected.offscreenRTHeight = 300; expected.pixelRect = new Rect(0.0f, 0.0f, 400, 300); expected.orthoSize = 1.5f; expected.unitsPerPixel = 0.01f; break; case 3: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = true; testComponent.pixelSnapping = true; testComponent.cropFrameX = true; testComponent.cropFrameY = false; testComponent.stretchFill = false; screenWidth = 1600; screenHeight = 1200; expected.zoom = 4; expected.useOffscreenRT = true; expected.offscreenRTWidth = 400; expected.offscreenRTHeight = 300; expected.pixelRect = new Rect(0.0f, 0.0f, 400, 300); expected.orthoSize = 1.5f; expected.unitsPerPixel = 0.01f; break; case 4: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = true; testComponent.pixelSnapping = true; testComponent.cropFrameX = false; testComponent.cropFrameY = false; testComponent.stretchFill = false; screenWidth = 1600; screenHeight = 1100; expected.zoom = 3; expected.useOffscreenRT = true; expected.offscreenRTWidth = 532; expected.offscreenRTHeight = 366; expected.pixelRect = new Rect(0.0f, 0.0f, 532, 366); expected.orthoSize = 1.83f; expected.unitsPerPixel = 0.01f; break; case 5: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = false; testComponent.pixelSnapping = false; testComponent.cropFrameX = false; testComponent.cropFrameY = false; testComponent.stretchFill = true; screenWidth = 800; screenHeight = 600; expected.zoom = 2; expected.useOffscreenRT = false; expected.offscreenRTWidth = 0; expected.offscreenRTHeight = 0; expected.pixelRect = Rect.zero; expected.orthoSize = 1.5f; expected.unitsPerPixel = 0.005f; break; case 6: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = false; testComponent.pixelSnapping = false; testComponent.cropFrameX = true; testComponent.cropFrameY = true; testComponent.stretchFill = false; screenWidth = 800; screenHeight = 700; expected.zoom = 2; expected.useOffscreenRT = true; expected.offscreenRTWidth = 800; expected.offscreenRTHeight = 600; expected.pixelRect = new Rect(0.0f, 0.0f, 800, 600); expected.orthoSize = 1.5f; expected.unitsPerPixel = 0.005f; break; case 7: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = false; testComponent.pixelSnapping = true; testComponent.cropFrameX = false; testComponent.cropFrameY = true; testComponent.stretchFill = false; screenWidth = 900; screenHeight = 600; expected.zoom = 2; expected.useOffscreenRT = true; expected.offscreenRTWidth = 900; expected.offscreenRTHeight = 600; expected.pixelRect = new Rect(0.0f, 0.0f, 900, 600); expected.orthoSize = 1.5f; expected.unitsPerPixel = 0.01f; break; case 8: testComponent.assetsPPU = 100; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; testComponent.upscaleRT = false; testComponent.pixelSnapping = true; testComponent.cropFrameX = true; testComponent.cropFrameY = false; testComponent.stretchFill = false; screenWidth = 900; screenHeight = 600; expected.zoom = 2; expected.useOffscreenRT = true; expected.offscreenRTWidth = 800; expected.offscreenRTHeight = 600; expected.pixelRect = new Rect(0.0f, 0.0f, 800, 600); expected.orthoSize = 1.5f; expected.unitsPerPixel = 0.01f; break; } testCaseArray[i] = new object[] { testComponent, screenWidth, screenHeight, expected }; } return testCaseArray; } [Test, TestCaseSource("GetCalculateCameraPropertiesTestCases")] public void CalculateCameraPropertiesProvidesCorrectResultsWithVariousInputs(PixelPerfectCameraTestComponent testComponent, int screenWidth, int screenHeight, CalculateCameraPropertiesResult expected) { PixelPerfectCameraInternal internals = new PixelPerfectCameraInternal(testComponent); internals.CalculateCameraProperties(screenWidth, screenHeight); Assert.AreEqual(expected.zoom, internals.zoom); Assert.AreEqual(expected.useOffscreenRT, internals.useOffscreenRT); Assert.AreEqual(expected.offscreenRTWidth, internals.offscreenRTWidth); Assert.AreEqual(expected.offscreenRTHeight, internals.offscreenRTHeight); Assert.AreEqual(expected.pixelRect, internals.pixelRect); Assert.AreEqual(expected.orthoSize, internals.orthoSize); Assert.AreEqual(expected.unitsPerPixel, internals.unitsPerPixel); } [Test] public void CalculateFinalBlitPixelRectStretchToFitHeightWorks() { PixelPerfectCameraTestComponent testComponent = new PixelPerfectCameraTestComponent(); testComponent.refResolutionX = 200; testComponent.refResolutionY = 100; PixelPerfectCameraInternal internals = new PixelPerfectCameraInternal(testComponent); internals.useStretchFill = true; Rect pixelRect = internals.CalculateFinalBlitPixelRect(400, 100); Rect expected = new Rect(100.0f, 0.0f, 200.0f, 100.0f); Assert.AreEqual(expected, pixelRect); } [Test] public void CalculateFinalBlitPixelRectStretchToFitWidthWorks() { PixelPerfectCameraTestComponent testComponent = new PixelPerfectCameraTestComponent(); testComponent.refResolutionX = 200; testComponent.refResolutionY = 100; PixelPerfectCameraInternal internals = new PixelPerfectCameraInternal(testComponent); internals.useStretchFill = true; Rect pixelRect = internals.CalculateFinalBlitPixelRect(200, 200); Rect expected = new Rect(0.0f, 50.0f, 200.0f, 100.0f); Assert.AreEqual(expected, pixelRect); } [Test] public void CalculateFinalBlitPixelRectCenteredWorksWithUpscaleRT() { PixelPerfectCameraTestComponent testComponent = new PixelPerfectCameraTestComponent(); testComponent.upscaleRT = true; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; PixelPerfectCameraInternal internals = new PixelPerfectCameraInternal(testComponent); internals.useStretchFill = false; internals.zoom = 2; internals.offscreenRTWidth = 400; internals.offscreenRTHeight = 300; Rect pixelRect = internals.CalculateFinalBlitPixelRect(1600, 1200); Rect expected = new Rect(400.0f, 300.0f, 800.0f, 600.0f); Assert.AreEqual(expected, pixelRect); } [Test] public void CalculateFinalBlitPixelRectCenteredWorksWithoutUpscaleRT() { PixelPerfectCameraTestComponent testComponent = new PixelPerfectCameraTestComponent(); testComponent.upscaleRT = false; testComponent.refResolutionX = 400; testComponent.refResolutionY = 300; PixelPerfectCameraInternal internals = new PixelPerfectCameraInternal(testComponent); internals.useStretchFill = false; internals.zoom = 2; internals.offscreenRTWidth = 400; internals.offscreenRTHeight = 300; Rect pixelRect = internals.CalculateFinalBlitPixelRect(1600, 1200); Rect expected = new Rect(600.0f, 450.0f, 400.0f, 300.0f); Assert.AreEqual(expected, pixelRect); } } }