1 files changed, 11 insertions, 0 deletions
diff --git a/video/gtk4/src/sink/paintable/premult.glsl b/video/gtk4/src/sink/paintable/premult.glsl
new file mode 100644
index 000000000..f2ab7ec55
--- /dev/null
+++ b/video/gtk4/src/sink/paintable/premult.glsl
@@ -0,0 +1,11 @@
+uniform sampler2D u_texture1;
+
+void mainImage(
+    out vec4 fragColor,
+    in vec2 fragCoord,
+    in vec2 resolution,
+    in vec2 uv
+) {
+  fragColor = GskTexture(u_texture1, uv);
+  fragColor.rgb = fragColor.rgb * fragColor.a;
+}