//-----------------------------------------------------------------------------
// HQ2x Effect
//-----------------------------------------------------------------------------

texture Diffuse;

sampler DiffuseSampler = sampler_state
{
	Texture   = <Diffuse>;
	MipFilter = LINEAR;
	MinFilter = LINEAR;
	MagFilter = LINEAR;
	AddressU = CLAMP;
	AddressV = CLAMP;
	AddressW = CLAMP;
};

//-----------------------------------------------------------------------------
// Vertex Definitions
//-----------------------------------------------------------------------------

struct VS_OUTPUT
{
	float4 Position : POSITION;
	float2 TexCoord : TEXCOORD0;
	float4 TexPair0 : TEXCOORD1;
	float4 TexPair1 : TEXCOORD2;
	float4 TexPair2 : TEXCOORD3;
	float4 TexPair3 : TEXCOORD4;
};

struct VS_INPUT
{
	float4 Position : POSITION;
	float4 Color : COLOR0;
	float2 TexCoord : TEXCOORD0;
};

struct PS_INPUT
{
	float2 TexCoord : TEXCOORD0;
	float4 TexPair0 : TEXCOORD1;
	float4 TexPair1 : TEXCOORD2;
	float4 TexPair2 : TEXCOORD3;
	float4 TexPair3 : TEXCOORD4;
};

//-----------------------------------------------------------------------------
// HQ2x Vertex Shader
//-----------------------------------------------------------------------------

float TargetWidth;
float TargetHeight;

float RawWidth;
float RawHeight;

VS_OUTPUT vs_main(VS_INPUT Input)
{
	VS_OUTPUT Output = (VS_OUTPUT)0;
	
	Output.Position = float4(Input.Position.xyz, 1.0f);
	Output.Position.x /= TargetWidth;
	Output.Position.y /= TargetHeight;
	Output.Position.y = 1.0f - Output.Position.y;
	Output.Position.x -= 0.5f;
	Output.Position.y -= 0.5f;
	Output.Position *= float4(2.0f, 2.0f, 1.0f, 1.0f);

	float2 DownRight = float2(0.5f / RawWidth, 0.5f / RawHeight);
	float2 DownLeft = DownRight * float2(-1.0f, 1.0f);
	float2 PixWidth = float2(DownRight.x, 0.0f);
	float2 PixHeight = float2(0.0f, DownRight.y);

	Output.TexCoord = Input.TexCoord;
	Output.TexPair0.xy = Input.TexCoord - DownRight;
	Output.TexPair0.zw = Input.TexCoord - PixHeight;
	Output.TexPair1.xy = Input.TexCoord - DownLeft;
	Output.TexPair1.zw = Input.TexCoord + PixWidth;
	Output.TexPair2.xy = Input.TexCoord + DownRight;
	Output.TexPair2.zw = Input.TexCoord + PixHeight;
	Output.TexPair3.xy = Input.TexCoord + DownLeft;
	Output.TexPair3.zw = Input.TexCoord - PixWidth;
	
	return Output;
}

//-----------------------------------------------------------------------------
// Deconvergence Pixel Shader
//-----------------------------------------------------------------------------

const float SmoothWeight = 0.325f;
const float MaxWeight = 0.25f;
const float MinWeight = -0.05f;

const float WeightDelta = -0.25f;

const float LumaOffset = 0.25f;

float4 ps_main(PS_INPUT Input) : COLOR
{
	float3 UL = tex2D(DiffuseSampler, Input.TexPair0.xy);
	float3 UU = tex2D(DiffuseSampler, Input.TexPair0.zw);
	float3 UR = tex2D(DiffuseSampler, Input.TexPair1.xy);
	float3 LL = tex2D(DiffuseSampler, Input.TexPair3.zw);
	float3 CC = tex2D(DiffuseSampler, Input.TexCoord);
	float3 RR = tex2D(DiffuseSampler, Input.TexPair1.zw);
	float3 BL = tex2D(DiffuseSampler, Input.TexPair3.xy);
	float3 BB = tex2D(DiffuseSampler, Input.TexPair2.zw);
	float3 BR = tex2D(DiffuseSampler, Input.TexPair2.xy);
	
	float3 DotSummer = float3(1.0f, 1.0f, 1.0f);
	
	float Mid1 = dot(abs(UL - BR), DotSummer);
	float Mid2 = dot(abs(UR - BL), DotSummer);
	
	float Weight1 = dot(abs(BR - CC), DotSummer) * Mid2;
	float Weight2 = dot(abs(BL - CC), DotSummer) * Mid1;
	float Weight3 = dot(abs(UL - CC), DotSummer) * Mid2;
	float Weight4 = dot(abs(UR - CC), DotSummer) * Mid1;
	
	float Cross1 = Weight1 + Weight3;
	float Cross2 = Weight2 + Weight4;
	
	float Weight = max(Cross1, Cross2) + 0.0001f;
	
	CC = (Weight1 * UL + Weight2 * UR + Weight3 * BR + Weight4 * BL + Weight * CC) / (Cross1 + Cross2 + Weight);
	
	float RecipCenter1 = WeightDelta / (0.12f * dot(UU + CC + BB, DotSummer) + LumaOffset);
	float RecipCenter2 = WeightDelta / (0.12f * dot(LL + CC + RR, DotSummer) + LumaOffset);
	
	Weight1 = clamp(RecipCenter1 * dot(abs(CC - UU), DotSummer) + SmoothWeight, MinWeight, MaxWeight);
	Weight2 = clamp(RecipCenter2 * dot(abs(CC - RR), DotSummer) + SmoothWeight, MinWeight, MaxWeight);
	Weight3 = clamp(RecipCenter1 * dot(abs(CC - BB), DotSummer) + SmoothWeight, MinWeight, MaxWeight);
	Weight4 = clamp(RecipCenter2 * dot(abs(CC - LL), DotSummer) + SmoothWeight, MinWeight, MaxWeight);
	
	float3 OutColor = Weight1 * UU + Weight2 * RR + Weight3 * BB + Weight4 * LL + (1.0f - Weight1 - Weight2 - Weight3 - Weight4) * CC;

	return float4(OutColor, 1.0f);
}

//-----------------------------------------------------------------------------
// HQ2x Effect
//-----------------------------------------------------------------------------

technique DeconvergeTechnique
{
	pass Pass0
	{
		Lighting = FALSE;

		VertexShader = compile vs_3_0 vs_main();
		PixelShader  = compile ps_3_0 ps_main();
	}
}

//-----------------------------------------------------------------------------
// Scale2x Effect
//-----------------------------------------------------------------------------

texture Diffuse;

sampler DiffuseSampler = sampler_state
{
	Texture   = <Diffuse>;
	MipFilter = POINT;
	MinFilter = POINT;
	MagFilter = POINT;
	AddressU = CLAMP;
	AddressV = CLAMP;
	AddressW = CLAMP;
};

//-----------------------------------------------------------------------------
// Vertex Definitions
//-----------------------------------------------------------------------------

struct VS_OUTPUT
{
	float4 Position : POSITION;
	float2 TexCoord : TEXCOORD0;
	float2 LeftCoord : TEXCOORD1;
	float2 RightCoord : TEXCOORD2;
	float2 TopCoord : TEXCOORD3;
	float2 BottomCoord : TEXCOORD4;
};

struct VS_INPUT
{
	float4 Position : POSITION;
	float4 Color : COLOR0;
	float2 TexCoord : TEXCOORD0;
};

struct PS_INPUT
{
	float2 TexCoord : TEXCOORD0;
	float2 LeftCoord : TEXCOORD1;
	float2 RightCoord : TEXCOORD2;
	float2 TopCoord : TEXCOORD3;
	float2 BottomCoord : TEXCOORD4;
};

//-----------------------------------------------------------------------------
// Scale2x Vertex Shader
//-----------------------------------------------------------------------------

float TargetWidth;
float TargetHeight;

float RawWidth;
float RawHeight;

VS_OUTPUT vs_main(VS_INPUT Input)
{
	VS_OUTPUT Output = (VS_OUTPUT)0;
	
	Output.Position = float4(Input.Position.xyz, 1.0f);
	Output.Position.x /= TargetWidth;
	Output.Position.y /= TargetHeight;
	Output.Position.y = 1.0f - Output.Position.y;
	Output.Position.x -= 0.5f;
	Output.Position.y -= 0.5f;
	Output.Position *= float4(2.0f, 2.0f, 1.0f, 1.0f);

	float2 PixWidth = float2(1.0f / RawWidth, 0.0f);
	float2 PixHeight = float2(0.0f, 1.0f / RawHeight);

	Output.TexCoord = Input.TexCoord;
	Output.LeftCoord = Input.TexCoord - PixWidth;
	Output.RightCoord = Input.TexCoord + PixWidth;
	Output.TopCoord = Input.TexCoord - PixHeight;
	Output.BottomCoord = Input.TexCoord + PixHeight;

	return Output;
}

//-----------------------------------------------------------------------------
// Scale2x Pixel Shader
//-----------------------------------------------------------------------------

float4 ps_main(PS_INPUT Input) : COLOR
{
	float4 Center = tex2D(DiffuseSampler, Input.TexCoord);
	float4 Left = tex2D(DiffuseSampler, Input.LeftCoord);
	float4 Right = tex2D(DiffuseSampler, Input.RightCoord);
	float4 Up = tex2D(DiffuseSampler, Input.TopCoord);
	float4 Bottom = tex2D(DiffuseSampler, Input.BottomCoord);

	float2 PixelSize = frac(Input.TexCoord * float2(RawWidth, RawHeight));
	
	// Split along the texel centerpoint
	if(PixelSize.y >= 0.5f)
	{
		float4 swap = Up;
		Up = Bottom;
		Bottom = swap;
	}
	
	if(PixelSize.x >= 0.5f)
	{
		float4 swap = Left;
		Left = Right;
		Right = swap;
	}
	
	float Match1 = Up == Left;
	float Match2 = Up != Right;
	float Match3 = Left != Bottom;
	
	if(Match1 && Match2 && Match3)
	{
		Center = Left;
	}

	return Center;
}

//-----------------------------------------------------------------------------
// Scale2x Effect
//-----------------------------------------------------------------------------

technique DeconvergeTechnique
{
	pass Pass0
	{
		Lighting = FALSE;

		VertexShader = compile vs_3_0 vs_main();
		PixelShader  = compile ps_3_0 ps_main();
	}
}

 #
# DIRECT3D POST-PROCESSING OPTIONS
#
hlsl_enable 			  	1
hlslpath 					hlsl
shadow_mask_alpha 			0.1
shadow_mask_texture 		aperture.png
shadow_mask_x_count 		1440
shadow_mask_y_count 		900
shadow_mask_usize 			0.125
shadow_mask_vsize 			0.125
oversample_x 				1.0
oversample_y 				1.0
curvature 					0.05
screen_scale_top 			1.0
screen_scale_bottom 		1.0
pincushion 					0.0
scanline_alpha 				0.5
scanline_size 				1.6
scanline_bright_scale 		1.1
scanline_bright_offset 		0.7
scanline_jitter 			0.0
defocus_x 					0.15
defocus_y 					0.15
red_converge_x 				0.0
red_converge_y 				0.0
green_converge_x 			0.0
green_converge_y 			0.0
blue_converge_x 			0.0
blue_converge_y 			0.0
red_radial_converge_x 		0.0
red_radial_converge_y 		0.0
green_radial_converge_x 	0.0
green_radial_converge_y 	0.0
blue_radial_converge_x 		0.0
blue_radial_converge_y 		0.0
red_from_r 					1.0
red_from_g 					0.0
red_from_b 					0.0
green_from_r 				0.0
green_from_g 				1.0
green_from_b 				0.0
blue_from_r 				0.0
blue_from_g 				0.0
blue_from_b 				1.0
saturation 					0.70
red_offset 					0.0
green_offset 				0.0
blue_offset 				0.0
red_scale 					1.0
green_scale					1.0
blue_scale 					1.0
red_power 					1.6
green_power 				1.6
blue_power 					1.6
red_floor 					0.05
green_floor 				0.05
blue_floor 					0.05
red_phosphor_life 			0.50
green_phosphor_life 		0.50
blue_phosphor_life 			0.50
yiq_enable 					0
yiq_w 						4.1887902047863909846168578443727
yiq_a 						0.5
yiq_b 						0.5
yiq_fsc 					1.5
yiq_fsc_scale 				0.5
yiq_phase_count 			2