add lcd3x and tweak ds-hybrid-view

handheld/lcd3x.slangp

@@ -0,0 +1,4 @@
+shaders = 1
+
+shader0 = shaders/lcd3x.slang
+filter_linear0 = false

handheld/shaders/ds-hybrid-view.slang

@@ -14,9 +14,11 @@ layout(push_constant) uniform Push
 	vec4 OutputSize;
 	uint FrameCount;
 	float screen_toggle;
+	float scale_correction;
 } params;
 
 #pragma parameter screen_toggle "Screen Toggle" 0.0 0.0 0.5 0.5
+#pragma parameter aspect_correction "Aspect Correction" 1.0 0.5 5.0 0.01
 
 layout(std140, set = 0, binding = 0) uniform UBO
 {
@@ -34,7 +36,7 @@ void main()
 	video_scale = floor(params.SourceSize.w * params.OutputSize.y);
 	vec2 integer_scale = video_scale * params.SourceSize.xy;
    gl_Position = (global.MVP * Position);
-   vTexCoord = TexCoord * (params.OutputSize.xy / vec2(integer_scale));
+   vTexCoord = TexCoord * (params.OutputSize.xy / vec2(integer_scale)) * vec2(params.aspect_correction, 1.0);
 }
 
 #pragma stage fragment
@@ -46,6 +48,6 @@ layout(set = 0, binding = 2) uniform sampler2D Source;
 void main()
 {
 vec2 bigCoord = vTexCoord * vec2(0.3570) + vec2(0.0, 0.0 + params.screen_toggle);
-vec2 smallCoord = vTexCoord * vec2(1.05) + vec2(-2.942, -0.275);
+vec2 smallCoord = vTexCoord * vec2(1.05,1.00) + vec2(-2.94, -0.2);
 FragColor = texture(Source, bigCoord) + texture(Source, smallCoord);
 }

handheld/shaders/lcd3x.slang

@@ -0,0 +1,59 @@
+#version 450
+
+/*
+   Author: Gigaherz
+   License: Public domain
+*/
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+	float brighten_scanlines;
+	float brighten_lcd;
+} params;
+
+#pragma parameter brighten_scanlines "Brighten Scanlines" 16.0 1.0 32.0 0.5
+#define brighten_scanlines params.brighten_scanlines
+#pragma parameter brighten_lcd "Brighten LCD" 4.0 1.0 12.0 0.1
+#define brighten_lcd params.brighten_lcd
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} global;
+
+vec2 omega = vec2(3.141592654) * vec2(2.0) * params.SourceSize.xy;
+const vec3 offsets = vec3(3.141592654) * vec3(1.0/2,1.0/2 - 2.0/3,1.0/2-4.0/3);
+
+#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()
+{
+    vec3 res = texture(Source, vTexCoord).xyz;
+
+    vec2 angle = vTexCoord * omega;
+	
+    float yfactor = (brighten_scanlines + sin(angle.y)) / (brighten_scanlines + 1);
+    vec3 xfactors = (brighten_lcd + sin(angle.x + offsets)) / (brighten_lcd + 1);
+   
+    vec3 color = yfactor * xfactors * res;
+   
+   FragColor = vec4(color.x, color.y, color.z, 1.0);
+}