////---------------//
 ///**Depth Cues**///
 //---------------////

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Depth Based Unsharp Mask haloing
// For Reshade 3.0+
//  ---------------------------------
//                                                       Depth Cues
//                                Extra Information for where I got the Idea for Depth Cues.
//                             https://www.uni-konstanz.de/mmsp/pubsys/publishedFiles/LuCoDe06.pdf
//
// LICENSE
// ============
// Overwatch & Depth Cues is licenses under: Attribution-NoDerivatives 4.0 International
//
// You are free to:
// Share - copy and redistribute the material in any medium or format
// for any purpose, even commercially.
// The licensor cannot revoke these freedoms as long as you follow the license terms.
// Under the following terms:
// Attribution - You must give appropriate credit, provide a link to the license, and indicate if changes were made.
// You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
//
// NoDerivatives - If you remix, transform, or build upon the material, you may not distribute the modified material.
//
// No additional restrictions - You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
//
// https://creativecommons.org/licenses/by-nd/4.0/
//
// Have fun,
// Jose Negrete AKA BlueSkyDefender
//
// https://github.com/BlueSkyDefender/Depth3D
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#if exists "Overwatch.fxh"                                           //Overwatch Intercepter//
	#include "Overwatch.fxh"
#else //DA_W Depth_Linearization | DB_X Depth_Flip
	static const float DA_W = 0.0, DB_X = 0;
	#define NC 0
	#define NP 0
#endif

//Automatic Blur Adjustment based on Resolutionsup to 8k considered.
#if (BUFFER_HEIGHT <= 720)
	#define Multi 0.5
#elif (BUFFER_HEIGHT <= 1080)
	#define Multi 1.0
#elif (BUFFER_HEIGHT <= 1440)
	#define Multi 1.5
#elif (BUFFER_HEIGHT <= 2160)
	#define Multi 2
#else
	#define Quality 2.5
#endif

// It is best to run Smart Sharp after tonemapping.

#if !defined(__RESHADE__) || __RESHADE__ < 40000
	#define Compatibility 1
#else
	#define Compatibility 0
#endif

uniform int Depth_Map <
	ui_type = "combo";
	ui_items = "Normal\0Reverse\0";
	ui_label = "Custom Depth Map";
	ui_tooltip = "Pick your Depth Map.";
	ui_category = "Depth Buffer";
> = DA_W;

uniform float Depth_Map_Adjust <
	#if Compatibility
	ui_type = "drag";
	#else
	ui_type = "slider";
	#endif
	ui_min = 1.0; ui_max = 1000.0; ui_step = 0.125;
	ui_label = "Depth Map Adjustment";
	ui_tooltip = "Adjust the depth map and sharpness distance.";
	ui_category = "Depth Buffer";
> = 250.0;

uniform bool Depth_Map_Flip <
	ui_label = "Depth Map Flip";
	ui_tooltip = "Flip the depth map if it is upside down.";
	ui_category = "Depth Buffer";
> = DB_X;

uniform bool DEPTH_DEBUG <
	ui_label = "View Depth";
	ui_tooltip = "Shows depth, you want close objects to be black and far objects to be white for things to work properly.";
	ui_category = "Depth Buffer";
> = false;

uniform bool No_Depth_Map <
	ui_label = "No Depth Map";
	ui_tooltip = "If you have No Depth Buffer turn this On.";
	ui_category = "Depth Buffer";
> = true;

uniform float Shade_Power <
	#if Compatibility
	ui_type = "drag";
	#else
	ui_type = "slider";
	#endif
	ui_min = 0.25; ui_max = 1.0;
	ui_label = "Shade Power";
	ui_tooltip = "Adjust the Shade Power This improves AO, Shadows, & Darker Areas in game.\n"
				 "Number 0.5 is default.";
	ui_category = "Depth Cues";
> = 0.5;

uniform float Blur_Cues <
	#if Compatibility
	ui_type = "drag";
	#else
	ui_type = "slider";
	#endif
	ui_min = 0.0; ui_max = 1.0;
	ui_label = "Blur Shade";
	ui_tooltip = "Adjust the to make Shade Softer in the Image.\n"
				 "Number 0.5 is default.";
	ui_category = "Depth Cues";
> = 0.5;

uniform float Spread <
	#if Compatibility
	ui_type = "drag";
	#else
	ui_type = "slider";
	#endif
	ui_min = 1.0; ui_max = 25.0; ui_step = 0.25;
	ui_label = "Shade Fill";
	ui_tooltip = "Adjust This to have the shade effect to fill in areas gives fakeAO effect.\n"
				 "This is used for gap filling.\n"
				 "Number 10.0 is default.";
	ui_category = "Depth Cues";
> = 10.0;

uniform bool Debug_View <
	ui_label = "Depth Cues Debug";
	ui_tooltip = "Depth Cues Debug output the shadeded output.";
	ui_category = "Depth Cues";
> = false;

//uniform bool Fake_AO <
//	ui_label = "Fake AO";
//	ui_tooltip = "Fake AO only works when you Have Depth Buffer Access.";
//	ui_category = "Fake AO";
//> = false;

/////////////////////////////////////////////////////D3D Starts Here/////////////////////////////////////////////////////////////////
#define pix float2(BUFFER_RCP_WIDTH, BUFFER_RCP_HEIGHT)
#define BlurSamples 10 //BlurSamples = # * 2
//#define Fake_AO_Adjust 0.001
#define S_Power Spread * Multi
#define M_Power Blur_Cues * Multi
uniform float timer < source = "timer"; >;

texture DepthBufferTex : DEPTH;

sampler DepthBuffer_DC
	{
		Texture = DepthBufferTex;
	};

texture BackBufferTex : COLOR;

sampler BackBuffer_DC
	{
		Texture = BackBufferTex;
	};

texture texHB_DC { Width = BUFFER_WIDTH  * 0.5 ; Height = BUFFER_HEIGHT * 0.5 ; Format = R8; MipLevels = 1;};

sampler SamplerHB_DC
	{
			Texture = texHB_DC;
	};

texture texDC { Width = BUFFER_WIDTH; Height = BUFFER_HEIGHT; Format = R8; MipLevels = 3;};

sampler SamplerDC
	{
			Texture = texDC;
	};

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
float Depth_DC(in float2 texcoord : TEXCOORD0)
{
	if (Depth_Map_Flip)
		texcoord.y =  1 - texcoord.y;

	float zBuffer = tex2D(DepthBuffer_DC, texcoord).x; //Depth Buffer

	//Conversions to linear space.....
	//Near & Far Adjustment
	float Far = 1.0, Near = 0.125/Depth_Map_Adjust; //Division Depth Map Adjust - Near

	float2 Z = float2( zBuffer, 1-zBuffer );

	if (Depth_Map == 0)//DM0. Normal
		zBuffer = Far * Near / (Far + Z.x * (Near - Far));
	else if (Depth_Map == 1)//DM1. Reverse
		zBuffer = Far * Near / (Far + Z.y * (Near - Far));

	return saturate(zBuffer);
}

float lum(float3 RGB)
{
	return dot(RGB, float3(0.2126, 0.7152, 0.0722) );
}

float BB(in float2 texcoord, float2 AD)
{
	
	//if(Fake_AO)
	//	return lerp(1-(1 - Fake_AO_Adjust/Depth_DC(texcoord + AD).x) , lum(tex2Dlod(BackBuffer_DC, float4(texcoord + AD,0,0)).rgb) , 0.125);
	//else
		return lum(tex2Dlod(BackBuffer_DC, float4(texcoord + AD,0,0)).rgb);
		
}

float H_Blur_DC(float4 position : SV_Position, float2 texcoord : TEXCOORD) : SV_Target
{
	float S = S_Power * 0.125;

	float sum = BB(texcoord,0) * BlurSamples;

    float total = BlurSamples;

    for ( int j = -BlurSamples; j <= BlurSamples; ++j)
    {
        float W = BlurSamples;

		sum += BB(texcoord , + float2(pix.x * S,0) * j ) * W;

        total += W;
    }
	return saturate(sum / total); // Get it  Total sum..... :D
}

// Spread the blur a bit more.
float DepthCues(float4 position : SV_Position, float2 texcoord : TEXCOORD) : SV_Target
{
		float2 S = S_Power * 0.75f * pix;

		float M_Cues = 1, result = tex2Dlod(SamplerHB_DC,float4(texcoord,0,M_Cues)).x;
		result += tex2Dlod(SamplerHB_DC,float4(texcoord + float2( 1, 0) * S ,0,M_Cues)).x;
		result += tex2Dlod(SamplerHB_DC,float4(texcoord + float2( 0, 1) * S ,0,M_Cues)).x;
		result += tex2Dlod(SamplerHB_DC,float4(texcoord + float2(-1, 0) * S ,0,M_Cues)).x;
		result += tex2Dlod(SamplerHB_DC,float4(texcoord + float2( 0,-1) * S ,0,M_Cues)).x;
		S *= 0.5;
		result += tex2Dlod(SamplerHB_DC,float4(texcoord + float2( 1, 0) * S ,0,M_Cues)).x;
		result += tex2Dlod(SamplerHB_DC,float4(texcoord + float2( 0, 1) * S ,0,M_Cues)).x;
		result += tex2Dlod(SamplerHB_DC,float4(texcoord + float2(-1, 0) * S ,0,M_Cues)).x;
		result += tex2Dlod(SamplerHB_DC,float4(texcoord + float2( 0,-1) * S ,0,M_Cues)).x;
		result *= rcp(9);

	// Formula for Image Pop = Original + (Original / Blurred).
	//float DC = BB(texcoord,0) / result;
return saturate(lerp(1.0f,BB(texcoord,0) / result,Shade_Power));
}

float3 ShaderOut_DC(float2 texcoord : TEXCOORD0)
{
	float DCB = tex2Dlod(SamplerDC,float4(texcoord,0,M_Power)).x,DB = Depth_DC(texcoord).x;
	float3 Out, BBN = tex2D(BackBuffer_DC,texcoord).rgb;

	if(No_Depth_Map)
		DB = 0.0;
		
	Out.rgb = BBN * lerp(DCB,1., DB);

	if (Debug_View)
		Out = lerp(DCB,1., DB);

	if (DEPTH_DEBUG)
		Out = DB;

	return Out;
}
////////////////////////////////////////////////////////Logo/////////////////////////////////////////////////////////////////////////
float3 Out_DC(float4 position : SV_Position, float2 texcoord : TEXCOORD) : SV_Target
{   //Overwatch integration
	float PosX = 0.9525f*BUFFER_WIDTH*pix.x,PosY = 0.975f*BUFFER_HEIGHT*pix.y, Text_Timer = 12500, BT = smoothstep(0,1,sin(timer*(3.75/1000)));
	float D,E,P,T,H,Three,DD,Dot,I,N,F,O,R,EE,A,DDD,HH,EEE,L,PP,NN,PPP,C,Not,No;
	float3 Color = ShaderOut_DC(texcoord).rgb;

	if(NC || NP)
		Text_Timer = 18750;

	[branch] if(timer <= Text_Timer)
	{
		//DEPTH
		//D
		float PosXD = -0.035+PosX, offsetD = 0.001;
		float OneD = all( abs(float2( texcoord.x -PosXD, texcoord.y-PosY)) < float2(0.0025,0.009));
		float TwoD = all( abs(float2( texcoord.x -PosXD-offsetD, texcoord.y-PosY)) < float2(0.0025,0.007));
		D = OneD-TwoD;
		//E
		float PosXE = -0.028+PosX, offsetE = 0.0005;
		float OneE = all( abs(float2( texcoord.x -PosXE, texcoord.y-PosY)) < float2(0.003,0.009));
		float TwoE = all( abs(float2( texcoord.x -PosXE-offsetE, texcoord.y-PosY)) < float2(0.0025,0.007));
		float ThreeE = all( abs(float2( texcoord.x -PosXE, texcoord.y-PosY)) < float2(0.003,0.001));
		E = (OneE-TwoE)+ThreeE;
		//P
		float PosXP = -0.0215+PosX, PosYP = -0.0025+PosY, offsetP = 0.001, offsetP1 = 0.002;
		float OneP = all( abs(float2( texcoord.x -PosXP, texcoord.y-PosYP)) < float2(0.0025,0.009*0.775));
		float TwoP = all( abs(float2( texcoord.x -PosXP-offsetP, texcoord.y-PosYP)) < float2(0.0025,0.007*0.680));
		float ThreeP = all( abs(float2( texcoord.x -PosXP+offsetP1, texcoord.y-PosY)) < float2(0.0005,0.009));
		P = (OneP-TwoP) + ThreeP;
		//T
		float PosXT = -0.014+PosX, PosYT = -0.008+PosY;
		float OneT = all( abs(float2( texcoord.x -PosXT, texcoord.y-PosYT)) < float2(0.003,0.001));
		float TwoT = all( abs(float2( texcoord.x -PosXT, texcoord.y-PosY)) < float2(0.000625,0.009));
		T = OneT+TwoT;
		//H
		float PosXH = -0.0072+PosX;
		float OneH = all( abs(float2( texcoord.x -PosXH, texcoord.y-PosY)) < float2(0.002,0.001));
		float TwoH = all( abs(float2( texcoord.x -PosXH, texcoord.y-PosY)) < float2(0.002,0.009));
		float ThreeH = all( abs(float2( texcoord.x -PosXH, texcoord.y-PosY)) < float2(0.00325,0.009));
		H = (OneH-TwoH)+ThreeH;
		//Three
		float offsetFive = 0.001, PosX3 = -0.001+PosX;
		float OneThree = all( abs(float2( texcoord.x -PosX3, texcoord.y-PosY)) < float2(0.002,0.009));
		float TwoThree = all( abs(float2( texcoord.x -PosX3 - offsetFive, texcoord.y-PosY)) < float2(0.003,0.007));
		float ThreeThree = all( abs(float2( texcoord.x -PosX3, texcoord.y-PosY)) < float2(0.002,0.001));
		Three = (OneThree-TwoThree)+ThreeThree;
		//DD
		float PosXDD = 0.006+PosX, offsetDD = 0.001;
		float OneDD = all( abs(float2( texcoord.x -PosXDD, texcoord.y-PosY)) < float2(0.0025,0.009));
		float TwoDD = all( abs(float2( texcoord.x -PosXDD-offsetDD, texcoord.y-PosY)) < float2(0.0025,0.007));
		DD = OneDD-TwoDD;
		//Dot
		float PosXDot = 0.011+PosX, PosYDot = 0.008+PosY;
		float OneDot = all( abs(float2( texcoord.x -PosXDot, texcoord.y-PosYDot)) < float2(0.00075,0.0015));
		Dot = OneDot;
		//INFO
		//I
		float PosXI = 0.0155+PosX, PosYI = 0.004+PosY, PosYII = 0.008+PosY;
		float OneI = all( abs(float2( texcoord.x - PosXI, texcoord.y - PosY)) < float2(0.003,0.001));
		float TwoI = all( abs(float2( texcoord.x - PosXI, texcoord.y - PosYI)) < float2(0.000625,0.005));
		float ThreeI = all( abs(float2( texcoord.x - PosXI, texcoord.y - PosYII)) < float2(0.003,0.001));
		I = OneI+TwoI+ThreeI;
		//N
		float PosXN = 0.0225+PosX, PosYN = 0.005+PosY,offsetN = -0.001;
		float OneN = all( abs(float2( texcoord.x - PosXN, texcoord.y - PosYN)) < float2(0.002,0.004));
		float TwoN = all( abs(float2( texcoord.x - PosXN, texcoord.y - PosYN - offsetN)) < float2(0.003,0.005));
		N = OneN-TwoN;
		//F
		float PosXF = 0.029+PosX, PosYF = 0.004+PosY, offsetF = 0.0005, offsetF1 = 0.001;
		float OneF = all( abs(float2( texcoord.x -PosXF-offsetF, texcoord.y-PosYF-offsetF1)) < float2(0.002,0.004));
		float TwoF = all( abs(float2( texcoord.x -PosXF, texcoord.y-PosYF)) < float2(0.0025,0.005));
		float ThreeF = all( abs(float2( texcoord.x -PosXF, texcoord.y-PosYF)) < float2(0.0015,0.00075));
		F = (OneF-TwoF)+ThreeF;
		//O
		float PosXO = 0.035+PosX, PosYO = 0.004+PosY;
		float OneO = all( abs(float2( texcoord.x -PosXO, texcoord.y-PosYO)) < float2(0.003,0.005));
		float TwoO = all( abs(float2( texcoord.x -PosXO, texcoord.y-PosYO)) < float2(0.002,0.003));
		O = OneO-TwoO;
		//Text Warnings: No Profile / Not Compatible
		//PosY += 0.953;
		PosX -= 0.483;
		float PosXNN = -0.458+PosX, offsetNN = 0.0015;
		float OneNN = all( abs(float2( texcoord.x -PosXNN, texcoord.y-PosY)) < float2(0.00325,0.009));
		float TwoNN = all( abs(float2( texcoord.x -PosXNN, texcoord.y-PosY-offsetNN)) < float2(0.002,0.008));
		NN = OneNN-TwoNN;
		//PPP
		float PosXPPP = -0.451+PosX, PosYPPP = -0.0025+PosY, offsetPPP = 0.001, offsetPPP1 = 0.002;
		float OnePPP = all( abs(float2( texcoord.x -PosXPPP, texcoord.y-PosYPPP)) < float2(0.0025,0.009*0.775));
		float TwoPPP = all( abs(float2( texcoord.x -PosXPPP-offsetPPP, texcoord.y-PosYPPP)) < float2(0.0025,0.007*0.680));
		float ThreePPP = all( abs(float2( texcoord.x -PosXPPP+offsetPPP1, texcoord.y-PosY)) < float2(0.0005,0.009));
		PPP = (OnePPP-TwoPPP) + ThreePPP;
		//C
		float PosXC = -0.450+PosX, offsetC = 0.001;
		float OneC = all( abs(float2( texcoord.x -PosXC, texcoord.y-PosY)) < float2(0.0035,0.009));
		float TwoC = all( abs(float2( texcoord.x -PosXC-offsetC, texcoord.y-PosY)) < float2(0.0025,0.007));
		C = OneC-TwoC;
		if(NP)
			No = (NN + PPP) * BT; //Blinking Text
		if(NC)
			Not = (NN + C) * BT; //Blinking Text
		//Website
		return D+E+P+T+H+Three+DD+Dot+I+N+F+O+No+Not ? (1-texcoord.y*50.0+48.85)*texcoord.y-0.500: Color;
	}
	else
		return Color;
}
///////////////////////////////////////////////////////////ReShade.fxh/////////////////////////////////////////////////////////////

// Vertex shader generating a triangle covering the entire screen
void PostProcessVS(in uint id : SV_VertexID, out float4 position : SV_Position, out float2 texcoord : TEXCOORD)
{
	texcoord.x = (id == 2) ? 2.0 : 0.0;
	texcoord.y = (id == 1) ? 2.0 : 0.0;
	position = float4(texcoord * float2(2.0, -2.0) + float2(-1.0, 1.0), 0.0, 1.0);
}

//*Rendering passes*//
technique Monocular_Cues
{

			pass Blur
		{
			VertexShader = PostProcessVS;
			PixelShader = H_Blur_DC;
			RenderTarget = texHB_DC;
		}
			pass BlurDC
		{
			VertexShader = PostProcessVS;
			PixelShader = DepthCues;
			RenderTarget = texDC;
		}
			pass UnsharpMask
		{
			VertexShader = PostProcessVS;
			PixelShader = Out_DC;
		}
}