From 9b5d364add330fc18100491bf3c57316a27183f5 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Fri, 27 Aug 2021 16:07:38 -0400
Subject: graphics: path: Separate fill/stroke into different shaders.

---
 data/shaders/path-frag.glsl | 93 ---------------------------------------------
 1 file changed, 93 deletions(-)
 delete mode 100644 data/shaders/path-frag.glsl

(limited to 'data/shaders/path-frag.glsl')

diff --git a/data/shaders/path-frag.glsl b/data/shaders/path-frag.glsl
deleted file mode 100644
index 0288ae1..0000000
--- a/data/shaders/path-frag.glsl
+++ /dev/null
@@ -1,93 +0,0 @@
-// -*- mode: c -*-
-
-#ifdef GLSL330
-out vec4 fragColor;
-#endif
-
-#ifdef GLSL120
-varying vec2 fragTex;
-varying float fragStrokeLength;
-#else
-in vec2 fragTex;
-in float fragStrokeLength;
-#endif
-
-uniform int mode;
-uniform vec4 color;
-uniform float feather;
-uniform int strokeClosed;
-uniform float strokeWidth;
-uniform int strokeCap;
-uniform int strokeMiterStyle;
-uniform float strokeMiterLimit;
-
-float infinity = 1.0 / 0.0;
-
-void main(void) {
-  if (color.a <= 0.0) {
-    discard;
-  }
-
-  // fill mode
-  if(mode == 0) {
-#ifdef GLSL330
-    fragColor = color;
-#else
-    gl_FragColor = color;
-#endif
-  } else if(mode == 1) { // stroke mode
-    float hw = strokeWidth / 2.0;
-    float u = fragTex.x;
-    float v = fragTex.y;
-    float dx;
-    float dy;
-    float d;
-
-    // Stroke caps.
-    if (u < 0 || u > fragStrokeLength) {
-      if (u < 0) {
-        dx = abs(u);
-      } else {
-        dx = u - fragStrokeLength;
-      }
-      dy = abs(v);
-
-      if (strokeCap == 0) { // none
-        d = infinity;
-      } else if (strokeCap == 1) { // butt
-        d = max(dx + hw - 2 * feather, dy);
-      } else if (strokeCap == 2) { // square
-        d = max(dx, dy);
-      } else if (strokeCap == 3) { // round
-        d = sqrt(dx * dx + dy * dy);
-      } else if (strokeCap == 4) { // triangle out
-        d = dx + dy;
-      } else if (strokeCap == 5) { // triangle in
-        d = max(dy, hw - feather + dx - dy);
-      }
-    // Stroke inner/join
-    } else {
-      d = abs(v);
-    }
-
-    if(d <= hw) {
-#ifdef GLSL330
-      fragColor = color;
-#else
-      gl_FragColor = color;
-#endif
-    } else {
-      vec4 c = vec4(color.rgb, color.a * (1.0 - ((d - hw) / feather)));
-
-      if (c.a <= 0.0) {
-        discard;
-      }
-
-#ifdef GLSL330
-      fragColor = c;
-#else
-      gl_FragColor = c;
-#endif
-    }
-  }
-}
-- 
cgit v1.2.3