Merge pull request #107 from yo6snap/master

New shader based on Sony CRT TV KV-M1420B

crt/crt-yo6-KV-M1420B-sharp.slangp

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+shaders = 3
+
+shader0 = "shaders/crt-yo6/crt-yo6-native-resolution.slang"
+filter_linear0 = true
+wrap_mode0 = "clamp_to_edge"
+scale_type0 = "absolute"
+scale_x0 = 439
+scale_y0 = 233
+
+shader1 = "shaders/crt-yo6/crt-yo6-warp.slang"
+filter_linear1 = true
+wrap_mode1 = "clamp_to_edge"
+scale_type1 = "absolute"
+scale_x1 = 1684
+scale_y1 = 1329
+
+shader2 = "../windowed/shaders/jinc2.slang"
+filter_linear2 = false
+
+textures = TEX_CRT
+TEX_CRT = "shaders/crt-yo6/KV-M1420B.png"
+TEX_CRT_linear = false
+
+parameters = "JINC2_WINDOW_SINC;JINC2_SINC;JINC2_AR_STRENGTH"
+JINC2_WINDOW_SINC = 0.44
+JINC2_SINC = 0.82
+JINC2_AR_STRENGTH = 0.5

crt/crt-yo6-KV-M1420B.slangp

@@ -0,0 +1,27 @@
+shaders = 3
+
+shader0 = "shaders/crt-yo6/crt-yo6-native-resolution.slang"
+filter_linear0 = true
+wrap_mode0 = "clamp_to_edge"
+scale_type0 = "absolute"
+scale_x0 = 439
+scale_y0 = 233
+
+shader1 = "shaders/crt-yo6/crt-yo6-warp.slang"
+filter_linear1 = true
+wrap_mode1 = "clamp_to_edge"
+scale_type1 = "absolute"
+scale_x1 = 1684
+scale_y1 = 1329
+
+shader2 = "../windowed/shaders/jinc2.slang"
+filter_linear2 = false
+
+textures = TEX_CRT
+TEX_CRT = "shaders/crt-yo6/KV-M1420B.png"
+TEX_CRT_linear = false
+
+parameters = "JINC2_WINDOW_SINC;JINC2_SINC;JINC2_AR_STRENGTH"
+JINC2_WINDOW_SINC = 0.44
+JINC2_SINC = 0.40
+JINC2_AR_STRENGTH = 0.0

crt/shaders/crt-yo6/crt-yo6-native-resolution.slang

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+#version 450
+
+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 float vU;
+layout(location = 1) out float vY;
+
+void main()
+{
+  gl_Position = global.MVP * Position;
+  vU = TexCoord.x;
+  vY = (TexCoord.y * params.OutputSize.y) - 
+       round((params.OutputSize.y - params.SourceSize.y) / 2.0);
+}
+
+#pragma stage fragment
+layout(location = 0) in float vU;
+layout(location = 1) in float vY;
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+void main()
+{
+  float clip0 = (sign(vY) + 1.0) / 2.0;
+  float clipH = (sign(params.SourceSize.y - vY) + 1.0) / 2.0;
+  vec3 col = texture(Source, vec2(vU, vY / params.SourceSize.y)).rgb;
+  FragColor = vec4(clip0 * clipH * col, 1.0); 
+}

crt/shaders/crt-yo6/crt-yo6-warp.slang

@@ -0,0 +1,43 @@
+#version 450
+
+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;
+layout(set = 0, binding = 3) uniform sampler2D TEX_CRT;
+
+
+void main()
+{
+  const vec3 packed = texture(TEX_CRT, vTexCoord).rgb; 
+
+  const vec2 dudv = ((packed.rg * 255.0) / 16.0) - 7.0;
+  const vec2 uv0 = vTexCoord * params.SourceSize.xy;
+  const vec2 uv = (uv0 + dudv) / params.SourceSize.xy;
+
+  FragColor = vec4(packed.b * texture(Source, uv).rgb, 1.0);
+}