enable hidpi

linux-hidpi/glava/wave/1.frag

@@ -0,0 +1,39 @@
+
+layout(pixel_center_integer) in vec4 gl_FragCoord;
+
+#request uniform "screen" screen
+uniform ivec2     screen; /* screen dimensions */
+
+#request uniform "audio_l" audio_l
+#request transform audio_l "window"
+#request transform audio_l "wrange"
+uniform sampler1D audio_l;
+
+out vec4 fragment;
+
+#include "@wave.glsl"
+#include ":wave.glsl"
+
+#define index(offset) ((texture(audio_l, (gl_FragCoord.x + offset) / screen.x).r - 0.5) * AMPLIFY) + 0.5F
+
+void main() {
+    float
+        os   = index(0),
+        adj0 = index(-1),
+        adj1 = index(1);
+    float
+        s0 = adj0 - os,
+        s1 = adj1 - os;
+    float
+        dmax = max(s0, s1),
+        dmin = min(s0, s1);
+    
+    float s = (os + (screen.y * 0.5F) - 0.5F); /* center to screen coords */
+    float diff = gl_FragCoord.y - s;
+    if (abs(diff) < clamp(abs(s - (screen.y * 0.5)) * 6, MIN_THICKNESS, MAX_THICKNESS)
+        || (diff <= dmax && diff >= dmin)) {
+        fragment = BASE_COLOR + (abs((screen.y * 0.5F) - s) * 0.02);
+    } else {
+        fragment = vec4(0, 0, 0, 0);
+    }
+}