add cocktail-cab and bob shaders

misc/bob-and-ghost-deinterlacing.slang

@@ -0,0 +1,63 @@
+#version 450
+
+/*
+   Bob-and-ghost Deinterlacing
+   Author: hunterk
+   License: Public domain
+   
+   Note: This shader is designed to work with the typical interlaced output from an emulator, which displays both even and odd fields twice.
+   As such, it is inappropriate for general video use unless the video has already been similarly woven beforehand.
+*/
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+} params;
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} global;
+
+#pragma stage vertex
+layout(location = 0) in vec4 Position;
+layout(location = 1) in vec2 TexCoord;
+layout(location = 0) out vec2 vTexCoord;
+
+void main()
+{
+   gl_Position = global.MVP * Position;
+   vTexCoord = TexCoord;
+}
+
+#pragma stage fragment
+layout(location = 0) in vec2 vTexCoord;
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+void main()
+{
+	vec4 current = pow(texture(Source, vTexCoord.xy), vec4(2.2));
+	vec4 prev  = vec4(0.0);
+	float y = 0.0;
+	// assume anything with a vertical resolution greater than 400 lines is interlaced
+	if (params.SourceSize.y > 400.0){
+		y = params.SourceSize.y * vTexCoord.y + params.FrameCount;
+		current = pow(vec4(texture(Source, vTexCoord + vec2(0.0, params.SourceSize.w))), vec4(2.2));
+		vec4 evens = pow(vec4(texture(Source, vTexCoord - vec2(0.0, 0.5 * params.SourceSize.w))), vec4(2.2));
+		vec4 odds = pow(vec4(texture(Source, vTexCoord + vec2(0.0, 0.5 * params.SourceSize.w))), vec4(2.2));
+		prev = (evens + odds) / 2.0;
+	}
+	else
+	{
+		y = 2.0 * params.SourceSize.y * vTexCoord.y;
+		prev = current;
+	}
+
+	if (mod(y, 2.0) > 0.99999) current = current;
+	else current = vec4(pow(texture(Source, vTexCoord), vec4(2.2)));
+	FragColor = vec4(pow((current + prev) / vec4(2.0), vec4(1.0 / 2.2)));
+}

misc/bob-deinterlacing.slang

@@ -0,0 +1,51 @@
+#version 450
+
+/*
+   Bob-Deinterlacing
+   Author: hunterk
+   License: Public domain
+   
+   Note: This shader is designed to work with the typical interlaced output from an emulator, which displays both even and odd fields twice.
+   As such, it is inappropriate for general video use unless the video has already been similarly woven beforehand.
+*/
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+} params;
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} global;
+
+#pragma stage vertex
+layout(location = 0) in vec4 Position;
+layout(location = 1) in vec2 TexCoord;
+layout(location = 0) out vec2 vTexCoord;
+
+void main()
+{
+   gl_Position = global.MVP * Position;
+   vTexCoord = TexCoord;
+}
+
+#pragma stage fragment
+layout(location = 0) in vec2 vTexCoord;
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+void main()
+{
+	float y = 0.0;
+	// assume anything with a vertical resolution greater than 400 lines is interlaced
+	if (params.SourceSize.y > 400.0) y = params.SourceSize.y * vTexCoord.y + float(params.FrameCount);
+	else	y = 2.0 * params.SourceSize.y * vTexCoord.y;
+
+	if (mod(y, 2.0) > 0.99999) FragColor = vec4(texture(Source, vTexCoord + vec2(0.0, params.SourceSize.w)));
+	else
+	FragColor = vec4(texture(Source, vTexCoord).rgb, 1.0);
+}

misc/cocktail-cabinet.slang

@@ -0,0 +1,45 @@
+#version 450
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+	float height;
+	float width;
+	float location;
+} params;
+
+#pragma parameter height "CocktailTable Image Height" 1.0 -3.0 3.0 0.01
+#pragma parameter width "CocktailTable Image Width" 1.0 -3.0 3.0 0.05
+#pragma parameter location "CocktailTable Image Separation" 0.0001 -2.0 2.0 0.001
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} global;
+
+#pragma stage vertex
+layout(location = 0) in vec4 Position;
+layout(location = 1) in vec2 TexCoord;
+layout(location = 0) out vec2 vTexCoord;
+layout(location = 1) out vec2 vTexCoord1;
+
+void main()
+{
+   gl_Position = global.MVP * Position;
+   vTexCoord  = ((TexCoord.xy - vec2(0.5 - (params.location), 0.5)) * mat2x2(0.0,  1.0001 * (params.width), -2.0001 * (params.height), 0.0)) + vec2(0.5, 0. );
+   vTexCoord1 = ((TexCoord.xy - vec2(0.5 + (params.location), 0.5)) * mat2x2(0.0, -1.0001 * (params.width),  2.0001 * (params.height), 0.0)) + vec2(0.5, 0. );
+}
+
+#pragma stage fragment
+layout(location = 0) in vec2 vTexCoord;
+layout(location = 1) in vec2 vTexCoord1;
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+void main()
+{
+   FragColor = vec4(texture(Source, vTexCoord).rgb, 1.0) + vec4(texture(Source, vTexCoord1).rgb, 1.0);
+}