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Added FGBufferBinding to GBuffer info to store pertinent GBuffer binding information in a much smaller footprint.

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#rb none

[CL 14984229 by zach bethel in ue5-main branch]
This commit is contained in:
zach bethel
2021-01-04 16:46:15 -04:00
parent dbf5a25c85
commit 849e110f2a
2 changed files with 74 additions and 7 deletions
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Engine/Source/Runtime/RenderCore/Private/GBufferInfo.cpp
+43 -1
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@@ -117,7 +117,7 @@ TArray < EGBufferSlot > FetchGBufferSlots(bool bHasVelocity, bool bHasTangent, b
// finds the target by searching for the name. returns -1 if not found.
int32 RENDERCORE_API FindGBufferTargetByName(const FGBufferInfo& GBufferInfo, const FString& Name)
int32 FindGBufferTargetByName(const FGBufferInfo& GBufferInfo, const FString& Name)
{
for (int32 I = 0; I < GBufferInfo.NumTargets; I++)
{
@@ -130,6 +130,48 @@ int32 RENDERCORE_API FindGBufferTargetByName(const FGBufferInfo& GBufferInfo, co
return -1;
}
FGBufferBinding FindGBufferBindingByName(const FGBufferInfo& GBufferInfo, const FString& Name)
{
const int32 Index = FindGBufferTargetByName(GBufferInfo, Name);
FGBufferBinding Binding;
if (Index >= 0)
{
const FGBufferTarget& Target = GBufferInfo.Targets[Index];
EPixelFormat PixelFormat = PF_Unknown;
switch (Target.TargetType)
{
case GBT_Unorm_8_8_8_8:
PixelFormat = PF_B8G8R8A8;
break;
case GBT_Unorm_11_11_10:
PixelFormat = PF_FloatR11G11B10;
break;
case GBT_Unorm_10_10_10_2:
PixelFormat = PF_A2B10G10R10;
break;
case GBT_Float_16_16:
PixelFormat = PF_G16R16;
break;
case GBT_Float_16_16_16_16:
PixelFormat = PF_A16B16G16R16;
break;
case GBT_Invalid:
default:
check(0);
break;
}
Binding.Index = Index;
Binding.Format = PixelFormat;
Binding.Flags = TexCreate_ShaderResource | TexCreate_RenderTargetable | (Target.bIsSrgb ? TexCreate_SRGB : TexCreate_None);
}
return Binding;
}
/*
* 4.25 Logic: