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parameterize ntsc-tate as ntsc-adaptive was

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Tatsuya79 2021-06-10 01:23:03 +02:00 committed by GitHub
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commit 6f17bbcef5
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1 changed files with 29 additions and 16 deletions
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39
ntsc/shaders/ntsc-adaptive-tate/ntsc-tate-pass1.slang
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@ -10,35 +10,54 @@ layout(std140, set = 0, binding = 0) uniform UBO
vec4 OriginalSize;
vec4 SourceSize;
uint FrameCount;
float quality, bw;
float quality, ntsc_sat, cust_fringing, cust_artifacting, ntsc_bright;
} global;
#pragma parameter quality "Quality (Composite = 0, Svideo = 1)" 0.0 0.0 1.0 1.0
#pragma parameter bw "Black and White" 0.0 0.0 1.0 1.0
#pragma parameter quality "Presets (Svideo=0 Composite=1 RF=2 Custom=-1)" 0.0 -1.0 2.0 1.0
#pragma parameter ntsc_sat "Color Saturation" 1.0 0.0 2.0 0.01
#pragma parameter ntsc_bright "Brightness" 1.0 0.0 1.5 0.01
#pragma parameter cust_fringing "Custom Fringing Value" 0.0 0.0 5.0 0.1
#pragma parameter cust_artifacting "Custom Artifacting Value" 0.0 0.0 5.0 0.1
#define PI 3.14159265
#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 pix_no;
layout(location = 2) out float phase;
layout(location = 3) out float BRIGHTNESS;
layout(location = 4) out float SATURATION;
layout(location = 5) out float FRINGING;
layout(location = 6) out float ARTIFACTING;
layout(location = 7) out float CHROMA_MOD_FREQ;
void main()
{
gl_Position = global.MVP * Position;
vTexCoord = TexCoord;
pix_no = TexCoord * global.SourceSize.xy * (global.OutputSize.xy / global.SourceSize.xy);
phase = (global.OriginalSize.x > 300.0) ? 2.0 : 3.0;
CHROMA_MOD_FREQ = (phase < 2.5) ? (4.0 * PI / 15.0) : (PI / 3.0);
ARTIFACTING = (global.quality > -0.5) ? global.quality : global.cust_artifacting;
FRINGING = (global.quality > -0.5) ? global.quality : global.cust_fringing;
SATURATION = global.ntsc_sat;
BRIGHTNESS = global.ntsc_bright;
}
#pragma stage fragment
layout(location = 0) in vec2 vTexCoord;
layout(location = 1) in vec2 pix_no;
layout(location = 2) in float phase;
layout(location = 3) in float BRIGHTNESS;
layout(location = 4) in float SATURATION;
layout(location = 5) in float FRINGING;
layout(location = 6) in float ARTIFACTING;
layout(location = 7) in float CHROMA_MOD_FREQ;
layout(location = 0) out vec4 FragColor;
layout(set = 0, binding = 2) uniform sampler2D Source;
#define PI 3.14159265
float phase = (global.OriginalSize.y > 300.0) ? 2.0 : 3.0;
#define mix_mat mat3(BRIGHTNESS, FRINGING, FRINGING, ARTIFACTING, 2.0 * SATURATION, 0.0, ARTIFACTING, 0.0, 2.0 * SATURATION)
const mat3 yiq2rgb_mat = mat3(
@ -64,12 +83,6 @@ vec3 rgb2yiq(vec3 col)
void main()
{
float CHROMA_MOD_FREQ = (phase < 2.5) ? (4.0 * PI / 15.0) : (PI / 3.0);
float ARTIFACTING = 1.0 - global.quality;
float FRINGING = 1.0 - global.quality;
float SATURATION = 1.0 - global.bw;
// prevent some very slight clipping that happens at 1.0
const float BRIGHTNESS = 0.95;
vec3 col = texture(Source, vTexCoord).rgb;
vec3 yiq = rgb2yiq(col);