From 1155dd6e21ab74ac4bc654bc3587a88dd2fb6842 Mon Sep 17 00:00:00 2001
From: "ramapcsx2.code" <ramapcsx2.code@96395faa-99c1-11dd-bbfe-3dabce05a288>
Date: Sun, 12 Jan 2014 19:47:49 +0000
Subject: [PATCH] GSdx: Add another scanline algorithm, made by pseudonym. This
 one is pretty fancy, using a cosinus function for generating the dark lines.
 It only works on unscaled output, so use software rendering or native
 resolution for hardware. It's an effect that works best on 240p converted
 games (like the SNES titles in Mega Man Collection).

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5812 96395faa-99c1-11dd-bbfe-3dabce05a288
---
 plugins/GSdx/GSDevice.cpp   |  2 +-
 plugins/GSdx/GSDevice11.h   |  2 +-
 plugins/GSdx/GSDevice9.h    |  2 +-
 plugins/GSdx/GSRenderer.cpp |  2 +-
 plugins/GSdx/res/convert.fx | 30 ++++++++++++++++++++++++++++++
 5 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/plugins/GSdx/GSDevice.cpp b/plugins/GSdx/GSDevice.cpp
index ce11e433df..174bea9799 100644
--- a/plugins/GSdx/GSDevice.cpp
+++ b/plugins/GSdx/GSDevice.cpp
@@ -106,7 +106,7 @@ void GSDevice::Present(const GSVector4i& r, int shader)
 
 	if(m_current)
 	{
-		static int s_shader[4] = {0, 5, 6, 8}; // FIXME
+		static int s_shader[5] = {0, 5, 6, 8, 9}; // FIXME
 
 		Present(m_current, m_backbuffer, GSVector4(r), s_shader[shader]);
 	}
diff --git a/plugins/GSdx/GSDevice11.h b/plugins/GSdx/GSDevice11.h
index 8f5e7d3fe7..1e4e4240a4 100644
--- a/plugins/GSdx/GSDevice11.h
+++ b/plugins/GSdx/GSDevice11.h
@@ -90,7 +90,7 @@ public: // TODO
 	{
 		CComPtr<ID3D11InputLayout> il;
 		CComPtr<ID3D11VertexShader> vs;
-		CComPtr<ID3D11PixelShader> ps[9];
+		CComPtr<ID3D11PixelShader> ps[10];
 		CComPtr<ID3D11SamplerState> ln;
 		CComPtr<ID3D11SamplerState> pt;
 		CComPtr<ID3D11DepthStencilState> dss;
diff --git a/plugins/GSdx/GSDevice9.h b/plugins/GSdx/GSDevice9.h
index 7db4f2cc98..31a18d8401 100644
--- a/plugins/GSdx/GSDevice9.h
+++ b/plugins/GSdx/GSDevice9.h
@@ -119,7 +119,7 @@ public: // TODO
 	{
 		CComPtr<IDirect3DVertexDeclaration9> il;
 		CComPtr<IDirect3DVertexShader9> vs;
-		CComPtr<IDirect3DPixelShader9> ps[9];
+		CComPtr<IDirect3DPixelShader9> ps[10];
 		Direct3DSamplerState9 ln;
 		Direct3DSamplerState9 pt;
 		Direct3DDepthStencilState9 dss;
diff --git a/plugins/GSdx/GSRenderer.cpp b/plugins/GSdx/GSRenderer.cpp
index 356cfeb747..a9f7afee56 100644
--- a/plugins/GSdx/GSRenderer.cpp
+++ b/plugins/GSdx/GSRenderer.cpp
@@ -534,7 +534,7 @@ void GSRenderer::EndCapture()
 void GSRenderer::KeyEvent(GSKeyEventData* e)
 {
 	const unsigned int interlace_nb = 8;
-	const unsigned int post_shader_nb = 4;
+	const unsigned int post_shader_nb = 5;
 	const unsigned int aspect_ratio_nb = 3;
 #ifdef _WINDOWS
 	if(e->type == KEYPRESS)
diff --git a/plugins/GSdx/res/convert.fx b/plugins/GSdx/res/convert.fx
index 042214702e..7ce10cd6d8 100644
--- a/plugins/GSdx/res/convert.fx
+++ b/plugins/GSdx/res/convert.fx
@@ -204,6 +204,21 @@ PS_OUTPUT ps_main8(PS_INPUT input) // triangular
 	return output;
 }
 
+static const float PI = 3.14159265359f;
+PS_OUTPUT ps_main9(PS_INPUT input) // triangular
+{
+	PS_OUTPUT output;
+
+	float2 texdim, halfpixel; 
+	Texture.GetDimensions(texdim.x, texdim.y); 
+	if (ddy(input.t.y) * texdim.y > 0.5) 
+		output.c = sample_c(input.t); 
+	else
+		output.c = (0.5 - 0.5 * cos(2 * PI * input.t.y * texdim.y)) * sample_c(float2(input.t.x, (floor(input.t.y * texdim.y) + 0.5) / texdim.y));
+
+	return output;
+}
+
 #elif SHADER_MODEL <= 0x300
 
 PS_OUTPUT ps_main1(PS_INPUT input)
@@ -284,5 +299,20 @@ PS_OUTPUT ps_main8(PS_INPUT input) // triangular
 	return output;
 }
 
+static const float PI = 3.14159265359f;
+PS_OUTPUT ps_main9(PS_INPUT input) // triangular
+{
+	PS_OUTPUT output;
+
+	float2 texdim, halfpixel; 
+	Texture.GetDimensions(texdim.x, texdim.y); 
+	if (ddy(input.t.y) * texdim.y > 0.5) 
+		output.c = sample_c(input.t); 
+	else
+		output.c = (0.5 - 0.5 * cos(2 * PI * input.t.y * texdim.y)) * sample_c(float2(input.t.x, (floor(input.t.y * texdim.y) + 0.5) / texdim.y));
+
+	return output;
+}
+
 #endif
 #endif