Merge pull request #1565 from bungoboingo/feat/tracing

[Feature] Profiling

4 files changed, 22 insertions, 0 deletions

diff --git a/glow/Cargo.toml b/glow/Cargo.toml
index f586d24d..c126a511 100644
--- a/glow/Cargo.toml
+++ b/glow/Cargo.toml
@@ -42,6 +42,10 @@ version = "0.5"
 path = "../graphics"
 features = ["font-fallback", "font-icons", "opengl"]
 
+[dependencies.tracing]
+version = "0.1.6"
+optional = true
+
 [package.metadata.docs.rs]
 rustdoc-args = ["--cfg", "docsrs"]
 all-features = true
diff --git a/glow/src/image.rs b/glow/src/image.rs
index 521a01e7..d3a25b5b 100644
--- a/glow/src/image.rs
+++ b/glow/src/image.rs
@@ -21,6 +21,9 @@ use glow::HasContext;
 
 use std::cell::RefCell;
 
+#[cfg(feature = "tracing")]
+use tracing::info_span;
+
 #[derive(Debug)]
 pub(crate) struct Pipeline {
     program: <glow::Context as HasContext>::Program,
@@ -148,6 +151,9 @@ impl Pipeline {
         images: &[layer::Image],
         layer_bounds: Rectangle<u32>,
     ) {
+        #[cfg(feature = "tracing")]
+        let _ = info_span!("Glow::Image", "DRAW").entered();
+
         unsafe {
             gl.use_program(Some(self.program));
             gl.bind_vertex_array(Some(self.vertex_array));
diff --git a/glow/src/quad.rs b/glow/src/quad.rs
index d9f1c6ae..67d9a098 100644
--- a/glow/src/quad.rs
+++ b/glow/src/quad.rs
@@ -7,6 +7,9 @@ use glow::HasContext;
 use iced_graphics::layer;
 use iced_native::Rectangle;
 
+#[cfg(feature = "tracing")]
+use tracing::info_span;
+
 #[derive(Debug)]
 pub enum Pipeline {
     Core(core::Pipeline),
@@ -42,6 +45,9 @@ impl Pipeline {
         scale: f32,
         bounds: Rectangle<u32>,
     ) {
+        #[cfg(feature = "tracing")]
+        let _ = info_span!("Glow::Quad", "DRAW").enter();
+
         match self {
             Pipeline::Core(pipeline) => {
                 pipeline.draw(
diff --git a/glow/src/triangle.rs b/glow/src/triangle.rs
index d0205e08..42c88455 100644
--- a/glow/src/triangle.rs
+++ b/glow/src/triangle.rs
@@ -9,6 +9,9 @@ use iced_graphics::triangle::{ColoredVertex2D, Vertex2D};
 use glow::HasContext;
 use std::marker::PhantomData;
 
+#[cfg(feature = "tracing")]
+use tracing::info_span;
+
 const DEFAULT_VERTICES: usize = 1_000;
 const DEFAULT_INDICES: usize = 1_000;
 
@@ -58,6 +61,9 @@ impl Pipeline {
         transformation: Transformation,
         scale_factor: f32,
     ) {
+        #[cfg(feature = "tracing")]
+        let _ = info_span!("Glow::Triangle", "DRAW").enter();
+
         unsafe {
             gl.enable(glow::MULTISAMPLE);
             gl.enable(glow::SCISSOR_TEST);