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0592ae3dda
- Disable texture streaming - AScreenshotFunctionalTest now reads back from game viewport directly when taking screenshot - AFunctionalUIScreenshotTest now render into a custom render target using FWidgetRenderer so that UI screenshot can be captured at fixed size - Add a new class, AScreenshotFunctionalTestBase, that handles screenshot common functions. AScreenshotFunctionalTest and AFunctionalUIScreenshotTest now derive from it #rb Chris.Bunner #codereview Chris.Bunner #lockdown nick.penwarden [CL 3647910 by Jian Ru in Main branch]
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
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#include "ScreenshotFunctionalTest.h"
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#include "Engine/GameViewportClient.h"
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#include "AutomationBlueprintFunctionLibrary.h"
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#include "Camera/CameraComponent.h"
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#include "Camera/PlayerCameraManager.h"
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#include "Kismet/GameplayStatics.h"
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#include "Engine/Engine.h"
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#include "EngineGlobals.h"
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#include "Misc/AutomationTest.h"
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AScreenshotFunctionalTest::AScreenshotFunctionalTest( const FObjectInitializer& ObjectInitializer )
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: AScreenshotFunctionalTestBase(ObjectInitializer)
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, bCameraCutOnScreenshotPrep(false)
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{
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}
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void AScreenshotFunctionalTest::PrepareTest()
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{
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Super::PrepareTest();
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// Apply a camera cut if requested
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if (bCameraCutOnScreenshotPrep)
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{
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APlayerController* PlayerController = UGameplayStatics::GetPlayerController(GetWorld(), 0);
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if (PlayerController && PlayerController->PlayerCameraManager)
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{
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PlayerController->PlayerCameraManager->bGameCameraCutThisFrame = true;
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if (ScreenshotCamera)
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{
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ScreenshotCamera->NotifyCameraCut();
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}
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}
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}
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UAutomationBlueprintFunctionLibrary::FinishLoadingBeforeScreenshot();
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}
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void AScreenshotFunctionalTest::RequestScreenshot()
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{
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Super::RequestScreenshot();
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// Screenshots in UE4 work in this way:
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// 1. Call FScreenshotRequest::RequestScreenshot to ask the system to take a screenshot. The screenshot
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// will have the same resolution as the current viewport;
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// 2. Register a callback to UGameViewportClient::OnScreenshotCaptured() delegate. The call back will be
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// called with screenshot pixel data when the shot is taken;
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// 3. Wait till the next frame or call FSceneViewport::Invalidate to force a redraw. Screenshot is not
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// taken until next draw where UGameViewportClient::ProcessScreenshots or
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// FEditorViewportClient::ProcessScreenshots is called to read pixels back from the viewport. It also
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// trigger the callback function registered in step 2.
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bool bShowUI = false;
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FScreenshotRequest::RequestScreenshot(bShowUI);
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}
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