mirror of
https://github.com/italicsjenga/slang-shaders.git
synced 2024-10-18 07:41:31 +11:00
380 lines
13 KiB
HLSL
380 lines
13 KiB
HLSL
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cbuffer global : register(b0)
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{
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row_major float4x4 global_MVP : packoffset(c0);
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};
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cbuffer params : register(b1)
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{
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float4 params_SourceSize : packoffset(c0);
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float4 params_OriginalSize : packoffset(c1);
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float4 params_OutputSize : packoffset(c2);
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uint params_FrameCount : packoffset(c3);
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float params_avalue : packoffset(c3.y);
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float params_bvalue : packoffset(c3.z);
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float params_ccvalue : packoffset(c3.w);
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float params_ovalue : packoffset(c4);
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float params_pvalue : packoffset(c4.y);
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float params_scantime : packoffset(c4.z);
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float params_notchhalfwidth : packoffset(c4.w);
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float params_yfreqresponse : packoffset(c5);
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float params_ifreqresponse : packoffset(c5.y);
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float params_qfreqresponse : packoffset(c5.z);
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float params_signaloffset : packoffset(c5.w);
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float params_ntscsignal : packoffset(c6);
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};
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Texture2D<float4> Source : register(t2);
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SamplerState _Source_sampler : register(s2);
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static float4 FragColor;
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static float2 vTexCoord;
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struct SPIRV_Cross_Input
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{
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float2 vTexCoord : TEXCOORD0;
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};
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struct SPIRV_Cross_Output
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{
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float4 FragColor : SV_Target0;
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};
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static bool NTSCSignal;
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static float AValue;
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static float BValue;
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static float CCValue;
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static float OValue;
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static float PValue;
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static float ScanTime;
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static float NotchHalfWidth;
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static float YFreqResponse;
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static float IFreqResponse;
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static float QFreqResponse;
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static float SignalOffset;
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float4 GetCompositeYIQ(float2 coord)
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{
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float2 PValueSourceTexel = float2(PValue / params_SourceSize.x, 0.0f);
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float2 C0 = coord + (PValueSourceTexel * 0.0f);
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float2 C1 = coord + (PValueSourceTexel * 0.25f);
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float2 C2 = coord + (PValueSourceTexel * 0.5f);
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float2 C3 = coord + (PValueSourceTexel * 0.75f);
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float4 Cx = float4(C0.x, C1.x, C2.x, C3.x);
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float4 Cy = float4(C0.y, C1.y, C2.y, C3.y);
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float4 Texel0 = Source.Sample(_Source_sampler, C0);
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float4 Texel1 = Source.Sample(_Source_sampler, C1);
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float4 Texel2 = Source.Sample(_Source_sampler, C2);
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float4 Texel3 = Source.Sample(_Source_sampler, C3);
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float4 HPosition = Cx;
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float4 VPosition = Cy;
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float4 Y = float4(dot(Texel0, float4(0.2989999949932098388671875f, 0.58700001239776611328125f, 0.114000000059604644775390625f, 0.0f)), dot(Texel1, float4(0.2989999949932098388671875f, 0.58700001239776611328125f, 0.114000000059604644775390625f, 0.0f)), dot(Texel2, float4(0.2989999949932098388671875f, 0.58700001239776611328125f, 0.114000000059604644775390625f, 0.0f)), dot(Texel3, float4(0.2989999949932098388671875f, 0.58700001239776611328125f, 0.114000000059604644775390625f, 0.0f)));
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float4 I = float4(dot(Texel0, float4(0.595715999603271484375f, -0.2744530141353607177734375f, -0.3212629854679107666015625f, 0.0f)), dot(Texel1, float4(0.595715999603271484375f, -0.2744530141353607177734375f, -0.3212629854679107666015625f, 0.0f)), dot(Texel2, float4(0.595715999603271484375f, -0.2744530141353607177734375f, -0.3212629854679107666015625f, 0.0f)), dot(Texel3, float4(0.595715999603271484375f, -0.2744530141353607177734375f, -0.3212629854679107666015625f, 0.0f)));
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float4 Q = float4(dot(Texel0, float4(0.211456000804901123046875f, -0.52259099483489990234375f, 0.311134994029998779296875f, 0.0f)), dot(Texel1, float4(0.211456000804901123046875f, -0.52259099483489990234375f, 0.311134994029998779296875f, 0.0f)), dot(Texel2, float4(0.211456000804901123046875f, -0.52259099483489990234375f, 0.311134994029998779296875f, 0.0f)), dot(Texel3, float4(0.211456000804901123046875f, -0.52259099483489990234375f, 0.311134994029998779296875f, 0.0f)));
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float W = (6.283185482025146484375f * CCValue) * ScanTime;
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float WoPI = W / 3.1415927410125732421875f;
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float HOffset = (BValue + SignalOffset) / WoPI;
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float VScale = (AValue * params_SourceSize.y) / WoPI;
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float4 T = (HPosition + HOffset.xxxx) + (VPosition * VScale);
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float4 TW = T * W;
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float4 CompositeYIQ = (Y + (I * cos(TW))) + (Q * sin(TW));
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return CompositeYIQ;
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}
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void frag_main()
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{
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NTSCSignal = params_ntscsignal != 0.0f;
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AValue = params_avalue;
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BValue = params_bvalue;
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CCValue = params_ccvalue;
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OValue = params_ovalue;
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PValue = params_pvalue;
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ScanTime = params_scantime;
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NotchHalfWidth = params_notchhalfwidth;
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YFreqResponse = params_yfreqresponse;
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IFreqResponse = params_ifreqresponse;
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QFreqResponse = params_qfreqresponse;
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SignalOffset = params_signaloffset;
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if (!NTSCSignal)
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{
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FragColor = Source.Sample(_Source_sampler, vTexCoord);
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return;
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}
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else
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{
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float4 BaseTexel = Source.Sample(_Source_sampler, vTexCoord);
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float TimePerSample = ScanTime / (params_SourceSize.x * 4.0f);
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float Fc_y1 = (CCValue - NotchHalfWidth) * TimePerSample;
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float Fc_y2 = (CCValue + NotchHalfWidth) * TimePerSample;
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float Fc_y3 = YFreqResponse * TimePerSample;
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float Fc_i = IFreqResponse * TimePerSample;
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float Fc_q = QFreqResponse * TimePerSample;
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float Fc_i_2 = Fc_i * 2.0f;
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float Fc_q_2 = Fc_q * 2.0f;
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float Fc_y1_2 = Fc_y1 * 2.0f;
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float Fc_y2_2 = Fc_y2 * 2.0f;
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float Fc_y3_2 = Fc_y3 * 2.0f;
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float Fc_i_pi2 = Fc_i * 6.283185482025146484375f;
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float Fc_q_pi2 = Fc_q * 6.283185482025146484375f;
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float Fc_y1_pi2 = Fc_y1 * 6.283185482025146484375f;
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float Fc_y2_pi2 = Fc_y2 * 6.283185482025146484375f;
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float Fc_y3_pi2 = Fc_y3 * 6.283185482025146484375f;
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float PI2Length = 0.098174773156642913818359375f;
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float W = (6.283185482025146484375f * CCValue) * ScanTime;
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float WoPI = W / 3.1415927410125732421875f;
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float HOffset = (BValue + SignalOffset) / WoPI;
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float VScale = (AValue * params_SourceSize.y) / WoPI;
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float4 YAccum = 0.0f.xxxx;
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float4 IAccum = 0.0f.xxxx;
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float4 QAccum = 0.0f.xxxx;
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float4 Cy = vTexCoord.yyyy;
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float4 VPosition = Cy;
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for (float i = 0.0f; i < 64.0f; i += 4.0f)
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{
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float n = i - 32.0f;
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float4 n4 = n.xxxx + float4(0.0f, 1.0f, 2.0f, 3.0f);
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float4 Cx = vTexCoord.x.xxxx + ((n4 * 0.25f) / params_SourceSize.x.xxxx);
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float4 HPosition = Cx;
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float2 param = float2(Cx.x, Cy.x);
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float4 C = GetCompositeYIQ(param);
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float4 T = (HPosition + HOffset.xxxx) + (VPosition * VScale);
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float4 WT = (T * W) + OValue.xxxx;
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float4 SincKernel = 0.540000021457672119140625f.xxxx + (cos(n4 * PI2Length) * 0.4600000083446502685546875f);
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float4 SincYIn1 = n4 * Fc_y1_pi2;
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float4 SincYIn2 = n4 * Fc_y2_pi2;
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float4 SincYIn3 = n4 * Fc_y3_pi2;
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float4 SincIIn = n4 * Fc_i_pi2;
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float4 SincQIn = n4 * Fc_q_pi2;
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float _447;
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if (SincYIn1.x != 0.0f)
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{
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_447 = sin(SincYIn1.x) / SincYIn1.x;
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}
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else
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{
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_447 = 1.0f;
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}
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float4 SincY1;
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SincY1.x = _447;
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float _462;
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if (SincYIn1.y != 0.0f)
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{
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_462 = sin(SincYIn1.y) / SincYIn1.y;
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}
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else
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{
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_462 = 1.0f;
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}
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SincY1.y = _462;
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float _478;
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if (SincYIn1.z != 0.0f)
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{
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_478 = sin(SincYIn1.z) / SincYIn1.z;
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}
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else
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{
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_478 = 1.0f;
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}
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SincY1.z = _478;
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float _494;
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if (SincYIn1.w != 0.0f)
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{
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_494 = sin(SincYIn1.w) / SincYIn1.w;
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}
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else
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{
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_494 = 1.0f;
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}
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SincY1.w = _494;
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float _510;
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if (SincYIn2.x != 0.0f)
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{
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_510 = sin(SincYIn2.x) / SincYIn2.x;
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}
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else
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{
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_510 = 1.0f;
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}
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float4 SincY2;
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SincY2.x = _510;
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float _525;
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if (SincYIn2.y != 0.0f)
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{
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_525 = sin(SincYIn2.y) / SincYIn2.y;
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}
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else
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{
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_525 = 1.0f;
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}
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SincY2.y = _525;
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float _540;
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if (SincYIn2.z != 0.0f)
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{
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_540 = sin(SincYIn2.z) / SincYIn2.z;
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}
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else
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{
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_540 = 1.0f;
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}
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SincY2.z = _540;
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float _555;
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if (SincYIn2.w != 0.0f)
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{
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_555 = sin(SincYIn2.w) / SincYIn2.w;
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}
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else
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{
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_555 = 1.0f;
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}
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SincY2.w = _555;
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float _571;
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if (SincYIn3.x != 0.0f)
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{
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_571 = sin(SincYIn3.x) / SincYIn3.x;
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}
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else
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{
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_571 = 1.0f;
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}
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float4 SincY3;
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SincY3.x = _571;
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float _586;
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if (SincYIn3.y != 0.0f)
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{
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_586 = sin(SincYIn3.y) / SincYIn3.y;
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}
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else
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{
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_586 = 1.0f;
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}
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SincY3.y = _586;
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float _601;
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if (SincYIn3.z != 0.0f)
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{
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_601 = sin(SincYIn3.z) / SincYIn3.z;
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}
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else
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{
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_601 = 1.0f;
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}
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SincY3.z = _601;
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float _616;
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if (SincYIn3.w != 0.0f)
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{
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_616 = sin(SincYIn3.w) / SincYIn3.w;
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}
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else
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{
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_616 = 1.0f;
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}
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SincY3.w = _616;
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float4 IdealY = ((SincY1 * Fc_y1_2) - (SincY2 * Fc_y2_2)) + (SincY3 * Fc_y3_2);
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float _641 = Fc_i_2;
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float _645;
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if (SincIIn.x != 0.0f)
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{
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_645 = sin(SincIIn.x) / SincIIn.x;
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}
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else
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{
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_645 = 1.0f;
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}
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float4 IdealI;
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IdealI.x = _641 * _645;
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float _658 = Fc_i_2;
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float _662;
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if (SincIIn.y != 0.0f)
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{
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_662 = sin(SincIIn.y) / SincIIn.y;
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}
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else
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{
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_662 = 1.0f;
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}
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IdealI.y = _658 * _662;
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float _675 = Fc_i_2;
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float _679;
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if (SincIIn.z != 0.0f)
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{
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_679 = sin(SincIIn.z) / SincIIn.z;
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}
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else
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{
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_679 = 1.0f;
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}
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IdealI.z = _675 * _679;
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float _692 = Fc_i_2;
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float _696;
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if (SincIIn.w != 0.0f)
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{
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_696 = sin(SincIIn.w) / SincIIn.w;
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}
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else
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{
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_696 = 1.0f;
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}
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IdealI.w = _692 * _696;
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float _710 = Fc_q_2;
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float _714;
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if (SincQIn.x != 0.0f)
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{
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_714 = sin(SincQIn.x) / SincQIn.x;
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}
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else
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{
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|
_714 = 1.0f;
|
||
|
|
}
|
||
|
|
float4 IdealQ;
|
||
|
|
IdealQ.x = _710 * _714;
|
||
|
|
float _727 = Fc_q_2;
|
||
|
|
float _731;
|
||
|
|
if (SincQIn.y != 0.0f)
|
||
|
|
{
|
||
|
|
_731 = sin(SincQIn.y) / SincQIn.y;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
_731 = 1.0f;
|
||
|
|
}
|
||
|
|
IdealQ.y = _727 * _731;
|
||
|
|
float _744 = Fc_q_2;
|
||
|
|
float _748;
|
||
|
|
if (SincQIn.z != 0.0f)
|
||
|
|
{
|
||
|
|
_748 = sin(SincQIn.z) / SincQIn.z;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
_748 = 1.0f;
|
||
|
|
}
|
||
|
|
IdealQ.z = _744 * _748;
|
||
|
|
float _761 = Fc_q_2;
|
||
|
|
float _765;
|
||
|
|
if (SincQIn.w != 0.0f)
|
||
|
|
{
|
||
|
|
_765 = sin(SincQIn.w) / SincQIn.w;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
_765 = 1.0f;
|
||
|
|
}
|
||
|
|
IdealQ.w = _761 * _765;
|
||
|
|
float4 FilterY = SincKernel * IdealY;
|
||
|
|
float4 FilterI = SincKernel * IdealI;
|
||
|
|
float4 FilterQ = SincKernel * IdealQ;
|
||
|
|
YAccum += (C * FilterY);
|
||
|
|
IAccum += ((C * cos(WT)) * FilterI);
|
||
|
|
QAccum += ((C * sin(WT)) * FilterQ);
|
||
|
|
}
|
||
|
|
float3 YIQ = float3(((YAccum.x + YAccum.y) + YAccum.z) + YAccum.w, (((IAccum.x + IAccum.y) + IAccum.z) + IAccum.w) * 2.0f, (((QAccum.x + QAccum.y) + QAccum.z) + QAccum.w) * 2.0f);
|
||
|
|
float3 RGB = float3(dot(YIQ, float3(1.0f, 0.95599997043609619140625f, 0.620999991893768310546875f)), dot(YIQ, float3(1.0f, -0.272000014781951904296875f, -0.647000014781951904296875f)), dot(YIQ, float3(1.0f, -1.10599994659423828125f, 1.70299994945526123046875f)));
|
||
|
|
FragColor = float4(RGB, BaseTexel.w);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
|
||
|
|
{
|
||
|
|
vTexCoord = stage_input.vTexCoord;
|
||
|
|
frag_main();
|
||
|
|
SPIRV_Cross_Output stage_output;
|
||
|
|
stage_output.FragColor = FragColor;
|
||
|
|
return stage_output;
|
||
|
|
}
|