From 92a432415eaeb09aa5ad16304bcbba33e11ee222 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Fri, 17 Apr 2026 17:25:31 +0200
Subject: feat(engine): add mesh usage option to renderer::Command::CreateMesh

---
 engine/src/renderer/opengl/graphics_mesh.rs | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

(limited to 'engine/src/renderer/opengl')

diff --git a/engine/src/renderer/opengl/graphics_mesh.rs b/engine/src/renderer/opengl/graphics_mesh.rs
index 7c7412c..3cf9181 100644
--- a/engine/src/renderer/opengl/graphics_mesh.rs
+++ b/engine/src/renderer/opengl/graphics_mesh.rs
@@ -9,6 +9,7 @@ use opengl_bindings::vertex_array::{
 };
 
 use crate::mesh::{Mesh, VertexAttrType};
+use crate::renderer::MeshUsage;
 use crate::shader::VertexDescription as ShaderVertexDescription;
 
 #[derive(Debug)]
@@ -27,18 +28,17 @@ impl GraphicsMesh
     pub fn new(
         current_context: &GlCurrentContextWithFns<'_>,
         mesh: &Mesh,
+        mesh_usage: MeshUsage,
         vertex_desc: &ShaderVertexDescription,
     ) -> Result<Self, Error>
     {
+        let buffer_usage = mesh_usage_to_gl_buffer_usage(mesh_usage);
+
         let vertex_arr = GlVertexArray::new(current_context);
         let vertex_buffer = GlBuffer::new(current_context);
 
         vertex_buffer
-            .store(
-                current_context,
-                mesh.vertex_buf().as_bytes(),
-                GlBufferUsage::Static,
-            )
+            .store(current_context, mesh.vertex_buf().as_bytes(), buffer_usage)
             .map_err(Error::StoreVerticesFailed)?;
 
         let vertex_buf_binding_index = 0;
@@ -115,7 +115,7 @@ impl GraphicsMesh
             let index_buffer = GlBuffer::new(current_context);
 
             index_buffer
-                .store(current_context, indices, GlBufferUsage::Static)
+                .store(current_context, indices, buffer_usage)
                 .map_err(Error::StoreIndicesFailed)?;
 
             vertex_arr.bind_element_buffer(current_context, &index_buffer);
@@ -163,3 +163,12 @@ pub enum Error
     #[error("Failed to store indices in index buffer")]
     StoreIndicesFailed(#[source] opengl_bindings::buffer::Error),
 }
+
+fn mesh_usage_to_gl_buffer_usage(mesh_usage: MeshUsage) -> GlBufferUsage
+{
+    match mesh_usage {
+        MeshUsage::Stream => GlBufferUsage::Stream,
+        MeshUsage::Static => GlBufferUsage::Static,
+        MeshUsage::Dynamic => GlBufferUsage::Dynamic,
+    }
+}
-- 
cgit v1.2.3-18-g5258