From 67b55ec3c1579c388c179e55ee5b14016cdc76b7 Mon Sep 17 00:00:00 2001
From: griffi-gh <prasol258@gmail.com>
Date: Thu, 7 Mar 2024 23:03:13 +0100
Subject: [PATCH] stuff

---
 hui-glium/shaders/fragment.frag | 6 ------
 hui/src/draw.rs                 | 1 +
 hui/src/draw/atlas.rs           | 8 ++++++++
 hui/src/instance.rs             | 3 +--
 4 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/hui-glium/shaders/fragment.frag b/hui-glium/shaders/fragment.frag
index fd190b6..a0e632e 100644
--- a/hui-glium/shaders/fragment.frag
+++ b/hui-glium/shaders/fragment.frag
@@ -9,11 +9,5 @@ in vec2 vtx_uv;
 uniform sampler2D tex;
 
 void main() {
-  //HACK: if vtx_uv is (0, 0) then the texture is not used
-  //disabling this will cause blinking
-  if (vtx_uv.x == 0.0 && vtx_uv.y == 0.0) {
-    out_color = vtx_color;
-    return;
-  }
   out_color = texture(tex, vtx_uv) * vtx_color;
 }
diff --git a/hui/src/draw.rs b/hui/src/draw.rs
index 3772d74..cf0b9f8 100644
--- a/hui/src/draw.rs
+++ b/hui/src/draw.rs
@@ -165,6 +165,7 @@ impl UiDrawCall {
             .map(|x| atlas.get_uv(x))
             .flatten()
             .unwrap_or(Corners::all(Vec2::ZERO));
+
           let vidx = draw_call.vertices.len() as u32;
           if let Some(corner) = rounded_corners.filter(|x| x.radius.max_f32() > 0.0) {
             //this code is stupid as fuck
diff --git a/hui/src/draw/atlas.rs b/hui/src/draw/atlas.rs
index a283b02..3d49e67 100644
--- a/hui/src/draw/atlas.rs
+++ b/hui/src/draw/atlas.rs
@@ -219,6 +219,14 @@ impl TextureAtlasManager {
     }
   }
 
+  pub(crate) fn add_dummy(&mut self) {
+    let handle = self.allocate((1, 1).into());
+    assert!(handle.index == 0, "Dummy texture handle is not 0");
+    assert!(self.get(handle).unwrap().position == (0, 0).into(), "Dummy texture position is not (0, 0)");
+    self.data[0..4].copy_from_slice(&[255, 255, 255, 255]);
+    self.modified = true;
+  }
+
   pub fn modify(&mut self, handle: ImageHandle) {
     todo!()
   }
diff --git a/hui/src/instance.rs b/hui/src/instance.rs
index 62511cc..ece8299 100644
--- a/hui/src/instance.rs
+++ b/hui/src/instance.rs
@@ -43,8 +43,7 @@ impl UiInstance {
       text_renderer: TextRenderer::new(),
       atlas: {
         let mut atlas = TextureAtlasManager::default();
-        //HACK: Ensure that vec(0, 0) uv is white square
-        atlas.add_rgba(1, &[255, 255, 255, 255]);
+        atlas.add_dummy();
         atlas
       },
       events: EventQueue::new(),