diff options
Diffstat (limited to 'hlsl/ntsc.fx')
-rw-r--r-- | hlsl/ntsc.fx | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/hlsl/ntsc.fx b/hlsl/ntsc.fx index ed07e37a4cc..107be16af16 100644 --- a/hlsl/ntsc.fx +++ b/hlsl/ntsc.fx @@ -108,7 +108,7 @@ static const int HalfSampleCount = SampleCount / 2; float4 GetCompositeYIQ(float2 TexCoord) { - float2 SourceTexelDims = 1.0f / SourceDims; + float2 SourceTexelDims = 1.0f / SourceDims; float2 SourceRes = SourceDims * SourceRect; float2 PValueSourceTexel = float2(PValue, 0.0f) * SourceTexelDims; @@ -131,12 +131,13 @@ float4 GetCompositeYIQ(float2 TexCoord) float4 I = float4(dot(Texel0, IDot), dot(Texel1, IDot), dot(Texel2, IDot), dot(Texel3, IDot)); float4 Q = float4(dot(Texel0, QDot), dot(Texel1, QDot), dot(Texel2, QDot), dot(Texel3, QDot)); - float4 W = PI2 * CCValue * ScanTime; + float W = PI2 * CCValue * ScanTime; + float WoPI = W / PI; + + float HOffset = (BValue + SignalOffset) / WoPI; + float VScale = (AValue * SourceRes.y) / WoPI; - float4 T = HPosition - + (AValue / 360.0f * SourceRes.y) * VPosition - + (BValue / 360.0f) - + (SignalOffset / 360.0f); + float4 T = HPosition + HOffset + VPosition * VScale; float4 TW = T * W; float4 CompositeYIQ = Y + I * cos(TW) + Q * sin(TW); @@ -171,7 +172,11 @@ float4 ps_main(PS_INPUT Input) : COLOR float PI2Length = PI2 / SampleCount; float W = PI2 * CCValue * ScanTime; - + float WoPI = W / PI; + + float HOffset = (BValue + SignalOffset) / WoPI; + float VScale = (AValue * SourceRes.y) / WoPI; + float4 YAccum = 0.0f; float4 IAccum = 0.0f; float4 QAccum = 0.0f; @@ -190,12 +195,8 @@ float4 ps_main(PS_INPUT Input) : COLOR float4 C = GetCompositeYIQ(float2(Cx.r, Cy.r)); - float4 T = HPosition - + (AValue / 360.0f * SourceRes.y) * VPosition - + (BValue / 360.0f) - + (SignalOffset / 360.0f); - float4 WT = W * T - + OValue; + float4 T = HPosition + HOffset + VPosition * VScale; + float4 WT = W * T + OValue; float4 SincKernel = 0.54f + 0.46f * cos(PI2Length * n4); |