From c380095b089e7ef6197b1d962f28b37a2cc3b5dd Mon Sep 17 00:00:00 2001
From: John Tsiombikas <nuclear@mutantstargoat.com>
Date: Sun, 7 Aug 2016 01:13:33 +0300
Subject: [PATCH] forgot to add the new shaders

---
 sdr/dfont.p.glsl |   23 +++++++++++++++++++++++
 sdr/dfont.v.glsl |    5 +++++
 2 files changed, 28 insertions(+)
 create mode 100644 sdr/dfont.p.glsl
 create mode 100644 sdr/dfont.v.glsl

diff --git a/sdr/dfont.p.glsl b/sdr/dfont.p.glsl
new file mode 100644
index 0000000..890b4ef
--- /dev/null
+++ b/sdr/dfont.p.glsl
@@ -0,0 +1,23 @@
+uniform sampler2D tex;
+uniform float smoothness;
+
+void main()
+{
+	const vec2 pix_sz = vec2(1.0 / 512.0, 1.0 / 256.0);	// TODO: uniform
+
+	vec2 uv = gl_TexCoord[0].st;
+	float dist = texture2D(tex, uv).a;
+
+	float dfdu = texture2D(tex, uv + vec2(pix_sz.x, 0.0)).a - dist;
+	float dfdv = texture2D(tex, uv + vec2(0.0, pix_sz.y)).a - dist;
+	vec2 grad = normalize(vec2(dfdu, dfdv));
+
+	float glyph = smoothstep(0.47 - smoothness, 0.47 + smoothness, dist);
+	float outline = smoothstep(0.54 - smoothness, 0.54 + smoothness, dist);
+
+	float beveldot = max(dot(grad, normalize(vec2(1.0, 1.0))), 0.0);
+	vec3 bevelcol = mix(vec3(0.05, 0.1, 0.6), vec3(1.0, 0.2, 0.8), beveldot);
+
+	gl_FragColor.rgb = mix(bevelcol, vec3(1.0), outline);
+	gl_FragColor.a = glyph;
+}
diff --git a/sdr/dfont.v.glsl b/sdr/dfont.v.glsl
new file mode 100644
index 0000000..b446ef6
--- /dev/null
+++ b/sdr/dfont.v.glsl
@@ -0,0 +1,5 @@
+void main()
+{
+	gl_Position = ftransform();
+	gl_TexCoord[0] = gl_MultiTexCoord0;
+}
-- 
1.7.10.4