add manual GTU-v50 conversion

crt/gtuv50.glslp

+shaders = 3
+
+shader0 = shaders/gtu-v050/pass1.glsl
+scale_type0 = source
+scale0 = 1.0
+float_framebuffer0 = true
+
+shader1 = shaders/gtu-v050/pass2.glsl
+scale_type_x1 = viewport
+scale_x1 = 1.0
+scale_type_y1 = source
+scale_y1 = 1.0
+filter_linear1 = false
+float_framebuffer1 = true
+
+shader2 = shaders/gtu-v050/pass3.glsl
+scale_type2 = viewport
+scale_2 = 1.0
+filter_linear2 = false
\ No newline at end of file

crt/shaders/gtu-v050/pass1.glsl

+////////////////////////////////////////////////////////
+// GTU version 0.50
+// Author: aliaspider - aliaspider@gmail.com
+// License: GPLv3
+////////////////////////////////////////////////////////
+
+// Compatibility #ifdefs needed for parameters
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+// Parameter lines go here:
+#pragma parameter compositeConnection1 "Composite Connection Enable 1" 0.0 0.0 1.0 1.0
+#ifdef PARAMETER_UNIFORM
+// All parameter floats need to have COMPAT_PRECISION in front of them
+uniform COMPAT_PRECISION float compositeConnection1;
+#else
+#define compositeConnection1 0.0
+#endif
+
+#define RGB_to_YIQ 	mat3x3( 0.299 , 0.595716 , 0.211456 ,	0.587    , -0.274453 , -0.522591 ,		0.114    , -0.321263 , 0.311135 )
+
+#if defined(VERTEX)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING out
+#define COMPAT_ATTRIBUTE in
+#define COMPAT_TEXTURE texture
+#else
+#define COMPAT_VARYING varying 
+#define COMPAT_ATTRIBUTE attribute 
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+COMPAT_ATTRIBUTE vec4 VertexCoord;
+COMPAT_ATTRIBUTE vec4 COLOR;
+COMPAT_ATTRIBUTE vec4 TexCoord;
+COMPAT_VARYING vec4 COL0;
+COMPAT_VARYING vec4 TEX0;
+
+uniform mat4 MVPMatrix;
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+void main()
+{
+    gl_Position = MVPMatrix * VertexCoord;
+    COL0 = COLOR;
+    TEX0.xy = TexCoord.xy;
+}
+
+#elif defined(FRAGMENT)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING in
+#define COMPAT_TEXTURE texture
+out vec4 FragColor;
+#else
+#define COMPAT_VARYING varying
+#define FragColor gl_FragColor
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#ifdef GL_ES
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+COMPAT_VARYING vec4 TEX0;
+
+// compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+#define texture(c, d) COMPAT_TEXTURE(c, d)
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define OutputSize vec4(OutputSize, 1.0 / OutputSize)
+
+void main()
+{
+	vec4	c	=	texture(Source, vTexCoord);
+	if(compositeConnection1 > 0.0)
+		c.rgb	=	c.rgb * RGB_to_YIQ;
+   FragColor = c;
+} 
+#endif

crt/shaders/gtu-v050/pass2.glsl

+////////////////////////////////////////////////////////
+// GTU version 0.50
+// Author: aliaspider - aliaspider@gmail.com
+// License: GPLv3
+////////////////////////////////////////////////////////
+
+// Compatibility #ifdefs needed for parameters
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+// Parameter lines go here:
+#pragma parameter compositeConnection2 "Composite Connection Enable 2" 0.0 0.0 1.0 1.0
+#pragma parameter signalResolution "Signal Resolution Y" 256.0 16.0 1024.0 16.0
+#pragma parameter signalResolutionI "Signal Resolution I" 83.0 1.0 350.0 2.0
+#pragma parameter signalResolutionQ "Signal Resolution Q" 25.0 1.0 350.0 2.0
+#ifdef PARAMETER_UNIFORM
+// All parameter floats need to have COMPAT_PRECISION in front of them
+uniform COMPAT_PRECISION float compositeConnection2;
+uniform COMPAT_PRECISION float signalResolution;
+uniform COMPAT_PRECISION float signalResolutionI;
+uniform COMPAT_PRECISION float signalResolutionQ;
+#else
+#define compositeConnection2 0.0
+#define RETRO_PIXEL_SIZE 256.0
+#define RETRO_PIXEL_SIZE 83.0
+#define RETRO_PIXEL_SIZE 25.0
+#endif
+
+#if defined(VERTEX)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING out
+#define COMPAT_ATTRIBUTE in
+#define COMPAT_TEXTURE texture
+#else
+#define COMPAT_VARYING varying 
+#define COMPAT_ATTRIBUTE attribute 
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+COMPAT_ATTRIBUTE vec4 VertexCoord;
+COMPAT_ATTRIBUTE vec4 COLOR;
+COMPAT_ATTRIBUTE vec4 TexCoord;
+COMPAT_VARYING vec4 COL0;
+COMPAT_VARYING vec4 TEX0;
+
+uniform mat4 MVPMatrix;
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+void main()
+{
+    gl_Position = MVPMatrix * VertexCoord;
+    COL0 = COLOR;
+    TEX0.xy = TexCoord.xy;
+}
+
+#elif defined(FRAGMENT)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING in
+#define COMPAT_TEXTURE texture
+out vec4 FragColor;
+#else
+#define COMPAT_VARYING varying
+#define FragColor gl_FragColor
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#ifdef GL_ES
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+COMPAT_VARYING vec4 TEX0;
+
+// compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+#define texture(c, d) COMPAT_TEXTURE(c, d)
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define OutputSize vec4(OutputSize, 1.0 / OutputSize)
+
+#define YIQ_to_RGB 	mat3x3( 1.0   , 1.0      , 1.0      ,	0.9563   , -0.2721   , -1.1070   ,		0.6210   , -0.6474   , 1.7046   )
+#define pi        3.14159265358
+#define a(x) abs(x)
+#define d(x,b) (pi*b*min(a(x)+0.5,1.0/b))
+#define e(x,b) (pi*b*min(max(a(x)-0.5,-1.0/b),1.0/b))
+#define STU(x,b) ((d(x,b)+sin(d(x,b))-e(x,b)-sin(e(x,b)))/(2.0*pi))
+#define X(i) (offset-(i))
+#define GETC (texture(Source, vec2(vTexCoord.x - X * SourceSize.z, vTexCoord.y)).rgb)
+
+#define VAL_composite vec3((c.x*STU(X,(signalResolution  / InputSize.x))),(c.y*STU(X,(signalResolutionI / InputSize.x))),(c.z*STU(X,(signalResolutionQ / InputSize.x))))
+#define VAL (c*STU(X,(signalResolution / InputSize.x)))
+
+#define PROCESS(i) X=(i);c=GETC;tempColor+=VAL;
+#define PROCESS_composite(i) X=(i);c=GETC;tempColor+=VAL_composite;
+
+void main()
+{
+	float offset   = fract((vTexCoord.x * SourceSize.x) - 0.5);
+	vec3	tempColor = vec3(0.0);
+	float	X;
+	vec3	c;
+	float range;
+	if (compositeConnection2 > 0.0)
+      range=ceil(0.5+InputSize.x/min(min(signalResolution,signalResolutionI),signalResolutionQ));
+   else
+      range=ceil(0.5+InputSize.x/signalResolution);
+	  
+	float i;
+   if(compositeConnection2 > 0.0){
+      for (i=-range;i<range+2.0;i++){
+         PROCESS_composite((offset-(i)))
+      }
+   }
+   else{
+      for (i=-range;i<range+2.0;i++){
+         PROCESS((offset-(i)))
+      }
+   }
+   if(compositeConnection2 > 0.0)
+      tempColor=clamp(tempColor * YIQ_to_RGB,0.0,1.0);
+   else
+      tempColor=clamp(tempColor,0.0,1.0);
+
+   // tempColor=clamp(tempColor,0.0,1.0);
+   FragColor = vec4(tempColor, 1.0);
+
+} 
+#endif

crt/shaders/gtu-v050/pass3.glsl

+////////////////////////////////////////////////////////
+// GTU version 0.50
+// Author: aliaspider - aliaspider@gmail.com
+// License: GPLv3
+////////////////////////////////////////////////////////
+
+// Compatibility #ifdefs needed for parameters
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+// Parameter lines go here:
+#pragma parameter noScanlines "No Scanlines" 0.0 0.0 1.0 1.0
+#pragma parameter tvVerticalResolution "TV Vertical Resolution" 250.0 20.0 1000.0 10.0
+#pragma parameter blackLevel "Black Level" 0.07 -0.30 0.30 0.01
+#pragma parameter contrast "Contrast" 1.0 0.0 2.0 0.1
+#ifdef PARAMETER_UNIFORM
+// All parameter floats need to have COMPAT_PRECISION in front of them
+uniform COMPAT_PRECISION float noScanlines;
+uniform COMPAT_PRECISION float tvVerticalResolution;
+uniform COMPAT_PRECISION float blackLevel;
+uniform COMPAT_PRECISION float contrast;
+#else
+#define noScanlines 0.0
+#define tvVerticalResolution 250.0
+#define blackLevel 0.07
+#define contrast 1.0
+#endif
+
+#define pi        3.14159265358
+#define normalGauss(x) ((exp(-(x)*(x)*0.5))/sqrt(2.0*pi))
+
+#if defined(VERTEX)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING out
+#define COMPAT_ATTRIBUTE in
+#define COMPAT_TEXTURE texture
+#else
+#define COMPAT_VARYING varying 
+#define COMPAT_ATTRIBUTE attribute 
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+COMPAT_ATTRIBUTE vec4 VertexCoord;
+COMPAT_ATTRIBUTE vec4 COLOR;
+COMPAT_ATTRIBUTE vec4 TexCoord;
+COMPAT_VARYING vec4 COL0;
+COMPAT_VARYING vec4 TEX0;
+// out variables go here as COMPAT_VARYING whatever
+
+vec4 _oPosition1; 
+uniform mat4 MVPMatrix;
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+void main()
+{
+    gl_Position = MVPMatrix * VertexCoord;
+    COL0 = COLOR;
+    TEX0.xy = TexCoord.xy;
+// Paste vertex contents here:
+
+}
+
+#elif defined(FRAGMENT)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING in
+#define COMPAT_TEXTURE texture
+out vec4 FragColor;
+#else
+#define COMPAT_VARYING varying
+#define FragColor gl_FragColor
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#ifdef GL_ES
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+COMPAT_VARYING vec4 TEX0;
+// in variables go here as COMPAT_VARYING whatever
+
+// compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+#define texture(c, d) COMPAT_TEXTURE(c, d)
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define OutputSize vec4(OutputSize, 1.0 / OutputSize)
+
+COMPAT_PRECISION float normalGaussIntegral(float x)
+{
+   float a1 = 0.4361836;
+   float a2 = -0.1201676;
+   float a3 = 0.9372980;
+   float p = 0.3326700;
+   float t = 1.0 / (1.0 + p*abs(x));
+   return (0.5-normalGauss(x) * (t*(a1 + t*(a2 + a3*t))))*sign(x);
+}
+
+vec3 scanlines( float x , vec3 c){
+   float temp=sqrt(2*pi)*(tvVerticalResolution / InputSize.y);
+
+   float rrr=0.5*(InputSize.y * OutputSize.w);
+   float x1=(x+rrr)*temp;
+   float x2=(x-rrr)*temp;
+   c.r=(c.r*(normalGaussIntegral(x1)-normalGaussIntegral(x2)));
+   c.g=(c.g*(normalGaussIntegral(x1)-normalGaussIntegral(x2)));
+   c.b=(c.b*(normalGaussIntegral(x1)-normalGaussIntegral(x2)));
+   c*=(OutputSize.y / InputSize.y);
+   return c;
+}
+
+#define Y(j) (offset.y-(j))
+#define a(x) abs(x)
+#define d(x,b) (pi*b*min(a(x)+0.5,1.0/b))
+#define e(x,b) (pi*b*min(max(a(x)-0.5,-1.0/b),1.0/b))
+#define STU(x,b) ((d(x,b)+sin(d(x,b))-e(x,b)-sin(e(x,b)))/(2.0*pi))
+
+#define SOURCE(j) vec2(vTexCoord.x,vTexCoord.y - Y(j) * SourceSize.w)
+#define C(j) (texture(Source, SOURCE(j)).xyz)
+
+
+#define VAL(j) (C(j)*STU(Y(j),(tvVerticalResolution / InputSize.y)))
+
+#define VAL_scanlines(j) (scanlines(Y(j),C(j)))
+
+void main()
+{
+	vec2	offset	=	fract((vTexCoord.xy * SourceSize.xy) - 0.5);
+	vec3	tempColor	=	vec3(0.0);
+
+   float range=ceil(0.5+InputSize.y/tvVerticalResolution);
+
+   float i;
+   
+   if (noScanlines > 0.0)
+      for (i=-range;i<range+2.0;i++){
+         tempColor+=VAL(i);
+      }
+   else
+      for (i=-range;i<range+2.0;i++){
+         tempColor+=VAL_scanlines(i);
+      }
+	tempColor-=vec3(blackLevel);
+	tempColor*=(contrast/vec3(1.0-blackLevel));
+   FragColor = vec4(tempColor, 1.0);
+} 
+#endif