115 lines
4.5 KiB
C++
115 lines
4.5 KiB
C++
|
/*
|
||
|
|
Copyright (C) 2024 Vizrt NDI AB. All rights reserved.
|
||
|
|
|
||
|
|
This file and its use within a Product is bound by the terms of NDI SDK license that was provided
|
||
|
|
as part of the NDI SDK. For more information, please review the license and the NDI SDK documentation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "NDIShaders.h"
|
||
|
|
|
||
|
|
#include "Modules/ModuleManager.h"
|
||
|
|
#include "Interfaces/IPluginManager.h"
|
||
|
|
|
||
|
|
#include "Misc/Paths.h"
|
||
|
|
#include "Misc/EngineVersionComparison.h"
|
||
|
|
|
||
|
|
#include "Engine/TextureRenderTarget2D.h"
|
||
|
|
#include "Engine/World.h"
|
||
|
|
#include "PipelineStateCache.h"
|
||
|
|
#include "SceneUtils.h"
|
||
|
|
#include "SceneInterface.h"
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
BEGIN_GLOBAL_SHADER_PARAMETER_STRUCT(FNDIIOShaderUB, )
|
||
|
|
SHADER_PARAMETER(uint32, InputWidth)
|
||
|
|
SHADER_PARAMETER(uint32, InputHeight)
|
||
|
|
SHADER_PARAMETER(uint32, OutputWidth)
|
||
|
|
SHADER_PARAMETER(uint32, OutputHeight)
|
||
|
|
SHADER_PARAMETER(FVector2f, UVOffset)
|
||
|
|
SHADER_PARAMETER(FVector2f, UVScale)
|
||
|
|
SHADER_PARAMETER(uint32, ColorCorrection)
|
||
|
|
SHADER_PARAMETER(float, AlphaScale)
|
||
|
|
SHADER_PARAMETER(float, AlphaOffset)
|
||
|
|
SHADER_PARAMETER_TEXTURE(Texture2D, InputTarget)
|
||
|
|
SHADER_PARAMETER_TEXTURE(Texture2D, InputAlphaTarget)
|
||
|
|
SHADER_PARAMETER_SAMPLER(SamplerState, SamplerP)
|
||
|
|
SHADER_PARAMETER_SAMPLER(SamplerState, SamplerB)
|
||
|
|
SHADER_PARAMETER_SAMPLER(SamplerState, SamplerT)
|
||
|
|
END_GLOBAL_SHADER_PARAMETER_STRUCT()
|
||
|
|
|
||
|
|
IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT(FNDIIOShaderUB, "NDIIOShaderUB");
|
||
|
|
|
||
|
|
IMPLEMENT_GLOBAL_SHADER(FNDIIOShaderVS, "/Plugin/NDIIOPlugin/Private/NDIIOShaders.usf", "NDIIOMainVS", SF_Vertex);
|
||
|
|
IMPLEMENT_GLOBAL_SHADER(FNDIIOShaderBGRAtoUYVYPS, "/Plugin/NDIIOPlugin/Private/NDIIOShaders.usf", "NDIIOBGRAtoUYVYPS", SF_Pixel);
|
||
|
|
IMPLEMENT_GLOBAL_SHADER(FNDIIOShaderBGRAtoAlphaEvenPS, "/Plugin/NDIIOPlugin/Private/NDIIOShaders.usf", "NDIIOBGRAtoAlphaEvenPS", SF_Pixel);
|
||
|
|
IMPLEMENT_GLOBAL_SHADER(FNDIIOShaderBGRAtoAlphaOddPS, "/Plugin/NDIIOPlugin/Private/NDIIOShaders.usf", "NDIIOBGRAtoAlphaOddPS", SF_Pixel);
|
||
|
|
IMPLEMENT_GLOBAL_SHADER(FNDIIOShaderUYVYtoBGRAPS, "/Plugin/NDIIOPlugin/Private/NDIIOShaders.usf", "NDIIOUYVYtoBGRAPS", SF_Pixel);
|
||
|
|
IMPLEMENT_GLOBAL_SHADER(FNDIIOShaderUYVAtoBGRAPS, "/Plugin/NDIIOPlugin/Private/NDIIOShaders.usf", "NDIIOUYVAtoBGRAPS", SF_Pixel);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
void FNDIIOShaderPS::SetParameters(FRHICommandList& CommandList, const Params& params)
|
||
|
|
{
|
||
|
|
FNDIIOShaderUB UB;
|
||
|
|
{
|
||
|
|
UB.InputWidth = params.InputTarget->GetSizeX();
|
||
|
|
UB.InputHeight = params.InputTarget->GetSizeY();
|
||
|
|
UB.OutputWidth = params.OutputSize.X;
|
||
|
|
UB.OutputHeight = params.OutputSize.Y;
|
||
|
|
UB.UVOffset = static_cast<FVector2f>(params.UVOffset);
|
||
|
|
UB.UVScale = static_cast<FVector2f>(params.UVScale);
|
||
|
|
UB.ColorCorrection = static_cast<uint32>(params.ColorCorrection);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Alpha' = Alpha * AlphaScale + AlphaOffset
|
||
|
|
* = (Alpha - AlphaMin) / (AlphaMax - AlphaMin)
|
||
|
|
* = Alpha / (AlphaMax - AlphaMin) - AlphaMin / (AlphaMax - AlphaMin)
|
||
|
|
* AlphaScale = 1 / (AlphaMax - AlphaMin)
|
||
|
|
* AlphaOffset = - AlphaMin / (AlphaMax - AlphaMin)
|
||
|
|
*/
|
||
|
|
float AlphaRange = params.AlphaMinMax[1] - params.AlphaMinMax[0];
|
||
|
|
if (AlphaRange != 0.f)
|
||
|
|
{
|
||
|
|
UB.AlphaScale = 1.f / AlphaRange;
|
||
|
|
UB.AlphaOffset = - params.AlphaMinMax[0] / AlphaRange;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
UB.AlphaScale = 0.f;
|
||
|
|
UB.AlphaOffset = -params.AlphaMinMax[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
UB.InputTarget = params.InputTarget;
|
||
|
|
UB.InputAlphaTarget = params.InputAlphaTarget;
|
||
|
|
UB.SamplerP = TStaticSamplerState<SF_Point>::GetRHI();
|
||
|
|
UB.SamplerB = TStaticSamplerState<SF_Bilinear>::GetRHI();
|
||
|
|
UB.SamplerT = TStaticSamplerState<SF_Trilinear>::GetRHI();
|
||
|
|
}
|
||
|
|
|
||
|
|
TUniformBufferRef<FNDIIOShaderUB> Data = TUniformBufferRef<FNDIIOShaderUB>::CreateUniformBufferImmediate(UB, UniformBuffer_SingleFrame);
|
||
|
|
#if (ENGINE_MAJOR_VERSION > 5) || ((ENGINE_MAJOR_VERSION == 5) && (ENGINE_MINOR_VERSION >= 3)) // 5.3 or later
|
||
|
|
FRHIBatchedShaderParameters& BatchedParameters = CommandList.GetScratchShaderParameters();
|
||
|
|
SetUniformBufferParameter(BatchedParameters, GetUniformBufferParameter<FNDIIOShaderUB>(), Data);
|
||
|
|
CommandList.SetBatchedShaderParameters(CommandList.GetBoundPixelShader(), BatchedParameters);
|
||
|
|
#else
|
||
|
|
SetUniformBufferParameter(CommandList, CommandList.GetBoundPixelShader(), GetUniformBufferParameter<FNDIIOShaderUB>(), Data);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
class FNDIIOShaders : public INDIIOShaders
|
||
|
|
{
|
||
|
|
/** IModuleInterface implementation */
|
||
|
|
virtual void StartupModule() override
|
||
|
|
{
|
||
|
|
FString PluginShaderDir = FPaths::Combine(IPluginManager::Get().FindPlugin(TEXT("NDIIOPlugin"))->GetBaseDir(), TEXT("Shaders"));
|
||
|
|
AddShaderSourceDirectoryMapping(TEXT("/Plugin/NDIIOPlugin"), PluginShaderDir);
|
||
|
|
}
|
||
|
|
virtual void ShutdownModule() override
|
||
|
|
{
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
IMPLEMENT_MODULE( FNDIIOShaders, NDIIOShaders )
|