122 lines
5.4 KiB
C++
122 lines
5.4 KiB
C++
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// @lint-ignore-every LICENSELINT
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "OculusXRHMD_SpectatorScreenController.h"
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#if OCULUS_HMD_SUPPORTED_PLATFORMS
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#include "OculusXRHMD.h"
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#include "TextureResource.h"
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#include "Engine/TextureRenderTarget2D.h"
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namespace OculusXRHMD
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{
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//-------------------------------------------------------------------------------------------------
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// FSpectatorScreenController
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//-------------------------------------------------------------------------------------------------
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FSpectatorScreenController::FSpectatorScreenController(FOculusXRHMD* InOculusXRHMD)
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: FDefaultSpectatorScreenController(InOculusXRHMD)
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, OculusXRHMD(InOculusXRHMD)
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, SpectatorMode(EMRSpectatorScreenMode::Default)
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, ForegroundRenderTexture(nullptr)
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, BackgroundRenderTexture(nullptr)
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{
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}
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void FSpectatorScreenController::RenderSpectatorScreen_RenderThread(FRHICommandListImmediate& RHICmdList, FRHITexture2D* BackBuffer, FTexture2DRHIRef RenderTexture, FVector2D WindowSize)
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{
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CheckInRenderThread();
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if (OculusXRHMD->GetCustomPresent_Internal())
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{
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if (SpectatorMode == EMRSpectatorScreenMode::ExternalComposition)
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{
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auto ForegroundResource = ForegroundRenderTexture->GetRenderTargetResource();
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auto BackgroundResource = BackgroundRenderTexture->GetRenderTargetResource();
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if (ForegroundResource && BackgroundResource)
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{
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RenderSpectatorModeExternalComposition(
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RHICmdList,
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FTexture2DRHIRef(BackBuffer),
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ForegroundResource->GetRenderTargetTexture(),
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BackgroundResource->GetRenderTargetTexture());
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return;
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}
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}
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else if (SpectatorMode == EMRSpectatorScreenMode::DirectComposition)
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{
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auto BackgroundResource = BackgroundRenderTexture->GetRenderTargetResource();
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if (BackgroundResource)
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{
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RenderSpectatorModeDirectComposition(
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RHICmdList,
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FTexture2DRHIRef(BackBuffer),
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BackgroundRenderTexture->GetRenderTargetResource()->GetRenderTargetTexture());
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return;
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}
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}
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FDefaultSpectatorScreenController::RenderSpectatorScreen_RenderThread(RHICmdList, BackBuffer, RenderTexture, WindowSize);
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}
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}
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void FSpectatorScreenController::RenderSpectatorModeUndistorted(FRHICommandListImmediate& RHICmdList, FTexture2DRHIRef TargetTexture, FTexture2DRHIRef EyeTexture, FTexture2DRHIRef OtherTexture, FVector2D WindowSize)
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{
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CheckInRenderThread();
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FSettings* Settings = OculusXRHMD->GetSettings_RenderThread();
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FIntRect DestRect(0, 0, TargetTexture->GetSizeX() / 2, TargetTexture->GetSizeY());
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for (int i = 0; i < 2; ++i)
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{
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OculusXRHMD->CopyTexture_RenderThread(RHICmdList, EyeTexture, Settings->EyeRenderViewport[i], TargetTexture, DestRect, false, true);
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DestRect.Min.X += TargetTexture->GetSizeX() / 2;
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DestRect.Max.X += TargetTexture->GetSizeX() / 2;
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}
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}
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void FSpectatorScreenController::RenderSpectatorModeDistorted(FRHICommandListImmediate& RHICmdList, FTexture2DRHIRef TargetTexture, FTexture2DRHIRef EyeTexture, FTexture2DRHIRef OtherTexture, FVector2D WindowSize)
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{
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CheckInRenderThread();
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FCustomPresent* CustomPresent = OculusXRHMD->GetCustomPresent_Internal();
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FTexture2DRHIRef MirrorTexture = CustomPresent->GetMirrorTexture();
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if (MirrorTexture)
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{
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FIntRect SrcRect(0, 0, MirrorTexture->GetSizeX(), MirrorTexture->GetSizeY());
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FIntRect DestRect(0, 0, TargetTexture->GetSizeX(), TargetTexture->GetSizeY());
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OculusXRHMD->CopyTexture_RenderThread(RHICmdList, MirrorTexture, SrcRect, TargetTexture, DestRect, false, true);
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}
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}
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void FSpectatorScreenController::RenderSpectatorModeSingleEye(FRHICommandListImmediate& RHICmdList, FTexture2DRHIRef TargetTexture, FTexture2DRHIRef EyeTexture, FTexture2DRHIRef OtherTexture, FVector2D WindowSize)
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{
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CheckInRenderThread();
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FSettings* Settings = OculusXRHMD->GetSettings_RenderThread();
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const FIntRect SrcRect = Settings->EyeRenderViewport[0];
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const FIntRect DstRect(0, 0, TargetTexture->GetSizeX(), TargetTexture->GetSizeY());
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OculusXRHMD->CopyTexture_RenderThread(RHICmdList, EyeTexture, SrcRect, TargetTexture, DstRect, false, true);
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}
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void FSpectatorScreenController::RenderSpectatorModeDirectComposition(FRHICommandListImmediate& RHICmdList, FTexture2DRHIRef TargetTexture, const FTexture2DRHIRef SrcTexture) const
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{
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CheckInRenderThread();
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const FIntRect SrcRect(0, 0, SrcTexture->GetSizeX(), SrcTexture->GetSizeY());
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const FIntRect DstRect(0, 0, TargetTexture->GetSizeX(), TargetTexture->GetSizeY());
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OculusXRHMD->CopyTexture_RenderThread(RHICmdList, SrcTexture, SrcRect, TargetTexture, DstRect, false, true);
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}
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void FSpectatorScreenController::RenderSpectatorModeExternalComposition(FRHICommandListImmediate& RHICmdList, FTexture2DRHIRef TargetTexture, const FTexture2DRHIRef FrontTexture, const FTexture2DRHIRef BackTexture) const
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{
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CheckInRenderThread();
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const FIntRect FrontSrcRect(0, 0, FrontTexture->GetSizeX(), FrontTexture->GetSizeY());
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const FIntRect FrontDstRect(0, 0, TargetTexture->GetSizeX() / 2, TargetTexture->GetSizeY());
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const FIntRect BackSrcRect(0, 0, BackTexture->GetSizeX(), BackTexture->GetSizeY());
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const FIntRect BackDstRect(TargetTexture->GetSizeX() / 2, 0, TargetTexture->GetSizeX(), TargetTexture->GetSizeY());
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OculusXRHMD->CopyTexture_RenderThread(RHICmdList, FrontTexture, FrontSrcRect, TargetTexture, FrontDstRect, false, true);
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OculusXRHMD->CopyTexture_RenderThread(RHICmdList, BackTexture, BackSrcRect, TargetTexture, BackDstRect, false, true);
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}
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} // namespace OculusXRHMD
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#endif // OCULUS_HMD_SUPPORTED_PLATFORMS
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