From 7d1fcb9735295a0ea63f1fe05124b8a9be56fcc0 Mon Sep 17 00:00:00 2001
From: hunterk <hunter_kaller@yahoo.com>
Date: Fri, 26 Nov 2021 13:24:24 -0600
Subject: [PATCH 1/2] fix some paths in old mame_hlsl

---
 crt/shaders/mame_hlsl/shaders/old/mame_hlsl.slangp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crt/shaders/mame_hlsl/shaders/old/mame_hlsl.slangp b/crt/shaders/mame_hlsl/shaders/old/mame_hlsl.slangp
index efec10b..c7e703c 100644
--- a/crt/shaders/mame_hlsl/shaders/old/mame_hlsl.slangp
+++ b/crt/shaders/mame_hlsl/shaders/old/mame_hlsl.slangp
@@ -13,7 +13,7 @@ scale_type1 = source
 scale1 = 1.0
 filter_linear1 = true
 
-shader2 = ../interpolation/shaders/sharp-bilinear.slang
+shader2 = ../../../../../interpolation/shaders/sharp-bilinear.slang
 alias2 = PrescalePass
 scale_type2 = source
 filter_linear2 = true
@@ -70,7 +70,7 @@ filter_linear11 = true
 
 # mame's textures are available here: https://github.com/mamedev/mame/tree/master/artwork
 textures = "MaskTexture"
-MaskTexture = shaders/mame_hlsl/resources/aperture-grille.png
+MaskTexture = ../../resources/aperture-grille.png
 
 parameters = "AUTO_PRESCALE;chromaa_x;chromaa_y;chromab_x;chromab_y;chromac_x;chromac_y;ygain_r;ygain_g;ygain_b"
 chromaa_x = "0.630"

From 425c3692b0a833f26c1d42cf787783324aa3b928 Mon Sep 17 00:00:00 2001
From: hunterk <hunter_kaller@yahoo.com>
Date: Sat, 27 Nov 2021 16:06:39 -0600
Subject: [PATCH 2/2] add dannyld's rainbow preset

---
 ntsc/ntsc-md-rainbows.slangp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 ntsc/ntsc-md-rainbows.slangp

diff --git a/ntsc/ntsc-md-rainbows.slangp b/ntsc/ntsc-md-rainbows.slangp
new file mode 100644
index 0000000..d644023
--- /dev/null
+++ b/ntsc/ntsc-md-rainbows.slangp
@@ -0,0 +1,28 @@
+# Based on dannyld's rainbow settings
+
+shaders = 2
+
+shader0 = "../crt/shaders/mame_hlsl/shaders/mame_ntsc_encode.slang"
+filter_linear0 = "true"
+scale_type0 = "source"
+scale0 = "1.000000"
+
+shader1 = "../crt/shaders/mame_hlsl/shaders/mame_ntsc_decode.slang"
+filter_linear1 = "true"
+scale_type1 = "source"
+scale_1 = "1.000000"
+
+# ntsc parameters
+ntscsignal = "1.000000"
+avalue = "0.000000"
+bvalue = "0.000000"
+scantime = "47.900070"
+
+# optional blur
+shadowalpha = "0.100000"
+notch_width = "3.450001"
+ifreqresponse = "1.750000"
+qfreqresponse = "1.450000"
+
+# uncomment for jailbars in blue
+#pvalue = "1.100000"