use immut. buffers for primitives

Cargo.lock

@@ -1033,8 +1033,10 @@ dependencies = [
  "glam",
  "glium",
  "hashbrown",
+ "kubi-logging",
  "log",
  "nohash-hasher",
+ "winit",
 ]
 
 [[package]]

kubi-ui/Cargo.toml

@@ -12,9 +12,11 @@ glium = { git = "https://github.com/glium/glium", rev = "968fc92378caf", optiona
 log = "0.4"
 
 [dev-dependencies]
+kubi-logging = { path = "../kubi-logging" }
 glium = { git = "https://github.com/glium/glium", rev = "968fc92378caf" }
+winit = "0.29"
 
 [features]
-default = ["backend_glium", "builtin_elements"]
+default = ["backend_glium", "builtin"]
 backend_glium = ["dep:glium"]
-builtin_elements = []
+builtin = []

kubi-ui/examples/test.rs

@@ -1,3 +1,82 @@
-pub fn main() {
-  //TODO ui demo
+use std::time::Instant;
+use glam::{Vec2, IVec2, UVec2};
+use glium::{backend::glutin::SimpleWindowBuilder, Surface};
+use winit::{
+  event::{Event, WindowEvent},
+  event_loop::{EventLoopBuilder, ControlFlow}
+};
+use kubi_ui::{
+  KubiUi,
+  backend::glium::GliumUiRenderer, element::{progress_bar::ProgressBar, container::{Container, Sides}, UiElement}, UiSize
+};
+
+fn main() {
+  kubi_logging::init();
+
+  let event_loop = EventLoopBuilder::new().build().unwrap();
+  let (window, display) = SimpleWindowBuilder::new().build(&event_loop);
+
+  let mut kui = KubiUi::new();
+  let mut backend = GliumUiRenderer::new(&display);
+
+  let instant = Instant::now();
+
+  event_loop.run(|event, window_target| {
+    window_target.set_control_flow(ControlFlow::Poll);
+    match event {
+      Event::WindowEvent { event: WindowEvent::CloseRequested, .. } => {
+        window_target.exit();
+      },
+      Event::AboutToWait => {
+        let mut frame = display.draw();
+        frame.clear_color_srgb(0.5, 0.5, 0.5, 0.);
+
+        let resolution = UVec2::from(display.get_framebuffer_dimensions()).as_vec2();
+
+        kui.begin();
+
+        kui.add(Container {
+          gap: 5.,
+          padding: Sides::all(5.),
+          elements: vec![
+            Box::new(ProgressBar {
+              value: 0.5,
+              ..Default::default()
+            }),
+            Box::new(ProgressBar {
+              value: instant.elapsed().as_secs_f32().sin().powi(2),
+              ..Default::default()
+            }),
+            Box::new(Container {
+              gap: 1.,
+              elements: {
+                let mut elements: Vec<Box<dyn UiElement>> = vec![];
+                for i in 0..10000 {
+                  elements.push(Box::new(ProgressBar {
+                    value: (instant.elapsed().as_secs_f32() + (i as f32 / 10.)).sin().powi(2),
+                    size: (UiSize::Auto, UiSize::Pixels(5.)),
+                    ..Default::default()
+                  }));
+                }
+                elements
+              },
+              ..Default::default()
+            })
+          ],
+          ..Default::default()
+        }, resolution);
+
+        kui.end();
+
+        let plan = kui.draw_plan();
+        if plan.0 {
+          backend.update(plan.1);
+        }
+        backend.draw(&mut frame, resolution);
+
+        frame.finish().unwrap();
+      }
+      _ => (),
+    }
+  }).unwrap();
 }

kubi-ui/src/backend/glium.rs

@@ -48,8 +48,9 @@ impl BufferPair {
   }
 
   pub fn ensure_buffer_size(&mut self, need_vtx: usize, need_idx: usize) {
-    let current_vtx_size = self.vertex_buffer.get_size();
-    let current_idx_size = self.index_buffer.get_size();
+    let current_vtx_size = self.vertex_buffer.get_size() / std::mem::size_of::<Vertex>();
+    let current_idx_size = self.index_buffer.get_size() / std::mem::size_of::<u32>();
+    //log::debug!("current vtx size: {}, current idx size: {}", current_vtx_size, current_idx_size);
     if current_vtx_size >= need_vtx && current_idx_size >= need_idx {
       return
     }
@@ -84,9 +85,10 @@ impl BufferPair {
       return
     }
 
-    self.ensure_buffer_size(vtx.len(), idx.len());
-    self.vertex_buffer.slice_mut(0..vtx.len()).unwrap().write(vtx);
-    self.index_buffer.slice_mut(0..idx.len()).unwrap().write(idx);
+    self.ensure_buffer_size(self.vertex_count, self.index_count);
+
+    self.vertex_buffer.slice_mut(0..self.vertex_count).unwrap().write(vtx);
+    self.index_buffer.slice_mut(0..self.index_count).unwrap().write(idx);
   }
 
   pub fn is_empty(&self) -> bool {

kubi-ui/src/element.rs

@@ -6,10 +6,16 @@ use crate::{
   state::StateRepo
 };
 
-#[cfg(feature = "builtin_elements")] pub mod rect;
-#[cfg(feature = "builtin_elements")] pub mod container;
-#[cfg(feature = "builtin_elements")] pub mod spacer;
-#[cfg(feature = "builtin_elements")] pub mod progress_bar;
+#[cfg(feature = "builtin")]
+mod builtin {
+  pub mod rect;
+  pub mod container;
+  pub mod spacer;
+  pub mod progress_bar;
+}
+
+#[cfg(feature = "builtin")]
+pub use builtin::*;
 
 pub trait UiElement {
   fn name(&self) -> &'static str { "UiElement" }

kubi-ui/src/element/builtin/container.rs

@@ -1,6 +1,13 @@
 use glam::{Vec2, vec2, Vec4};
-use crate::{UiDirection, LayoutInfo, draw::UiDrawCommand, measure::Response, state::StateRepo, UiSize};
-use super::UiElement;
+use crate::{
+  UiDirection,
+  UiSize,
+  LayoutInfo,
+  draw::UiDrawCommand,
+  measure::Response,
+  state::StateRepo,
+  element::UiElement
+};
 
 pub enum Alignment {
   Begin,
@@ -75,6 +82,15 @@ impl Default for Container {
   }
 }
 
+impl Container {
+  pub fn measure_max_size(&self, layout: &LayoutInfo) -> Vec2 {
+    layout.max_size - vec2(
+      self.padding.left + self.padding.right,
+      self.padding.top + self.padding.bottom,
+    )
+  }
+}
+
 impl UiElement for Container {
   fn measure(&self, state: &StateRepo, layout: &LayoutInfo) -> Response {
     let mut size = Vec2::ZERO;
@@ -82,7 +98,7 @@ impl UiElement for Container {
     for element in &self.elements {
       let measure = element.measure(state, &LayoutInfo {
         position: layout.position + size,
-        max_size: layout.max_size, // - size, //TODO
+        max_size: self.measure_max_size(layout), // - size TODO
         direction: self.direction,
       });
       match self.direction {
@@ -141,19 +157,17 @@ impl UiElement for Container {
     for element in &self.elements {
       //(passing max size from layout rather than actual bounds for the sake of consistency with measure() above)
 
-      //measure
-      let el_measure = element.measure(state, &LayoutInfo {
+      let layout = LayoutInfo {
         position,
-        max_size: layout.max_size,
+        max_size: self.measure_max_size(layout),
         direction: self.direction,
-      });
+      };
+
+      //measure
+      let el_measure = element.measure(state, &layout);
 
       //process
-      element.process(&el_measure, state, &LayoutInfo {
-        position,
-        max_size: layout.max_size,
-        direction: self.direction,
-      }, draw);
+      element.process(&el_measure, state, &layout, draw);
 
       //layout
       match self.direction {

kubi-ui/src/element/builtin/progress_bar.rs

@@ -3,10 +3,11 @@ use crate::{
   UiSize, LayoutInfo,
   draw::UiDrawCommand,
   measure::Response,
-  state::StateRepo
+  state::StateRepo,
+  element::UiElement
 };
-use super::UiElement;
 
+#[derive(Debug, Clone, Copy)]
 pub struct ProgressBar {
   pub size: (UiSize, UiSize),
   pub value: f32,

kubi-ui/src/element/builtin/rect.rs

@@ -1,6 +1,12 @@
 use glam::{vec2, Vec4};
-use crate::{state::StateRepo, LayoutInfo, measure::Response, draw::UiDrawCommand, UiSize};
-use super::UiElement;
+use crate::{
+  LayoutInfo,
+  UiSize,
+  element::UiElement,
+  state::StateRepo,
+  measure::Response,
+  draw::UiDrawCommand
+};
 
 pub struct Rect {
   pub size: (UiSize, UiSize),

kubi-ui/src/element/builtin/spacer.rs

@@ -1,6 +1,12 @@
 use glam::vec2;
-use crate::{state::StateRepo, LayoutInfo, measure::Response, draw::UiDrawCommand, UiDirection};
-use super::UiElement;
+use crate::{
+  LayoutInfo,
+  UiDirection,
+  element::UiElement,
+  state::StateRepo,
+  measure::Response,
+  draw::UiDrawCommand
+};
 
 pub struct Spacer(f32);
 

kubi-ui/src/lib.rs

@@ -72,7 +72,7 @@ impl Default for KubiUi {
   }
 }
 
-#[derive(Default)]
+#[derive(Default, Debug, Clone, Copy)]
 pub enum UiSize {
   #[default]
   Auto,

kubi/src/rendering/primitives/cube.rs

@@ -59,11 +59,11 @@ pub(super) fn init_cube_primitive(
   display: NonSendSync<UniqueView<Renderer>>
 ) {
   {
-    let vert = VertexBuffer::new(
+    let vert = VertexBuffer::immutable(
       &display.display,
       CUBE_VERTICES
     ).unwrap();
-    let index = IndexBuffer::new(
+    let index = IndexBuffer::immutable(
       &display.display,
       PrimitiveType::TrianglesList,
       CUBE_INDICES
@@ -71,11 +71,11 @@ pub(super) fn init_cube_primitive(
     storages.add_unique_non_send_sync(CubePrimitive(vert, index));
   }
   {
-    let vert = VertexBuffer::new(
+    let vert = VertexBuffer::immutable(
       &display.display,
       CENTERED_CUBE_VERTICES
     ).unwrap();
-    let index = IndexBuffer::new(
+    let index = IndexBuffer::immutable(
       &display.display,
       PrimitiveType::TrianglesList,
       CUBE_INDICES

kubi/src/rendering/primitives/rect.rs

@@ -18,11 +18,11 @@ pub(super) fn init_rect_primitive(
   storages: AllStoragesView,
   display: NonSendSync<UniqueView<Renderer>>
 ) {
-  let vert = VertexBuffer::new(
+  let vert = VertexBuffer::immutable(
     &display.display,
     RECT_VERTEX
   ).unwrap();
-  let index = IndexBuffer::new(
+  let index = IndexBuffer::immutable(
     &display.display,
     PrimitiveType::TrianglesList,
     RECT_INDEX