From a24fd351db5303479a35b743c86ab7f879edca2a Mon Sep 17 00:00:00 2001
From: hunterk <hunter_kaller@yahoo.com>
Date: Mon, 17 Feb 2020 11:44:18 -0600
Subject: [PATCH] update phase in main function

---
 ntsc/shaders/ntsc-adaptive/ntsc-pass1.slang | 21 +++++++++------------
 ntsc/shaders/ntsc-adaptive/ntsc-pass2.slang |  5 ++---
 2 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/ntsc/shaders/ntsc-adaptive/ntsc-pass1.slang b/ntsc/shaders/ntsc-adaptive/ntsc-pass1.slang
index 2b4b0975..a28e5cd6 100644
--- a/ntsc/shaders/ntsc-adaptive/ntsc-pass1.slang
+++ b/ntsc/shaders/ntsc-adaptive/ntsc-pass1.slang
@@ -37,18 +37,9 @@ layout(set = 0, binding = 2) uniform sampler2D Source;
 
 #define PI 3.14159265
 float phase = (global.OriginalSize.x > 300.0) ? 2.0 : 3.0;
-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;
 
-mat3 mix_mat = mat3(
-	BRIGHTNESS, FRINGING, FRINGING,
-	ARTIFACTING, 2.0 * SATURATION, 0.0,
-	ARTIFACTING, 0.0, 2.0 * SATURATION
-);
+
+#define mix_mat mat3(BRIGHTNESS, FRINGING, FRINGING, ARTIFACTING, 2.0 * SATURATION, 0.0, ARTIFACTING, 0.0, 2.0 * SATURATION)
 
 const mat3 yiq2rgb_mat = mat3(
    1.0, 0.956, 0.6210,
@@ -73,6 +64,12 @@ 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);
 
@@ -87,4 +84,4 @@ void main()
    yiq *= mix_mat; // Cross-talk.
    yiq.yz *= vec2(i_mod, q_mod); // Demodulate.
    FragColor = vec4(yiq, 1.0);
-}
+} 
diff --git a/ntsc/shaders/ntsc-adaptive/ntsc-pass2.slang b/ntsc/shaders/ntsc-adaptive/ntsc-pass2.slang
index 458ae3a3..928da6fe 100644
--- a/ntsc/shaders/ntsc-adaptive/ntsc-pass2.slang
+++ b/ntsc/shaders/ntsc-adaptive/ntsc-pass2.slang
@@ -33,8 +33,6 @@ layout(location = 0) in vec2 vTexCoord;
 layout(location = 0) out vec4 FragColor;
 layout(set = 0, binding = 2) uniform sampler2D Source;
 
-float phase = (global.OriginalSize.x > 300.0) ? 2.0 : 3.0;
-
 const mat3 yiq2rgb_mat = mat3(
    1.0, 0.956, 0.6210,
    1.0, -0.2720, -0.6474,
@@ -184,6 +182,7 @@ const float chroma_filter_3_phase[25] = float[25](
 
 void main()
 {
+   float phase = (global.OriginalSize.x > 300.0) ? 2.0 : 3.0;
    float one_x = global.SourceSize.z;
    vec3 signal = vec3(0.0);
 
@@ -218,4 +217,4 @@ void main()
    FragColor = vec4(rgb, 1.0);
    if(global.linearize < 0.5) return;
    else FragColor = pow(FragColor, vec4(2.2));
-}
+}