From f5c80a6d75d5022b175d3562f0965598b6398bd7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A9ctor=20Ram=C3=B3n=20Jim=C3=A9nez?=
 <hector0193@gmail.com>
Date: Fri, 14 Feb 2020 05:42:19 +0100
Subject: [PATCH] Upgrade `Mesh2D` indices from `u16` to `u32`

---
 examples/bezier_tool/src/main.rs | 2 +-
 wgpu/src/triangle.rs             | 4 ++--
 wgpu/src/widget/canvas/frame.rs  | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/examples/bezier_tool/src/main.rs b/examples/bezier_tool/src/main.rs
index fbb6fa24..efdb3924 100644
--- a/examples/bezier_tool/src/main.rs
+++ b/examples/bezier_tool/src/main.rs
@@ -94,7 +94,7 @@ mod bezier {
             layout: Layout<'_>,
             cursor_position: Point,
         ) -> (Primitive, MouseCursor) {
-            let mut buffer: VertexBuffers<Vertex2D, u16> = VertexBuffers::new();
+            let mut buffer: VertexBuffers<Vertex2D, u32> = VertexBuffers::new();
             let mut path_builder = lyon::path::Path::builder();
 
             let bounds = layout.bounds();
diff --git a/wgpu/src/triangle.rs b/wgpu/src/triangle.rs
index 6f3adbe4..3cc1d3fb 100644
--- a/wgpu/src/triangle.rs
+++ b/wgpu/src/triangle.rs
@@ -91,7 +91,7 @@ impl Pipeline {
                     write_mask: wgpu::ColorWrite::ALL,
                 }],
                 depth_stencil_state: None,
-                index_format: wgpu::IndexFormat::Uint16,
+                index_format: wgpu::IndexFormat::Uint32,
                 vertex_buffers: &[wgpu::VertexBufferDescriptor {
                     stride: mem::size_of::<Vertex2D>() as u64,
                     step_mode: wgpu::InputStepMode::Vertex,
@@ -233,5 +233,5 @@ pub struct Mesh2D {
     /// The list of vertex indices that defines the triangles of the mesh.
     ///
     /// Therefore, this list should always have a length that is a multiple of 3.
-    pub indices: Vec<u16>,
+    pub indices: Vec<u32>,
 }
diff --git a/wgpu/src/widget/canvas/frame.rs b/wgpu/src/widget/canvas/frame.rs
index 687f6c37..27d676d6 100644
--- a/wgpu/src/widget/canvas/frame.rs
+++ b/wgpu/src/widget/canvas/frame.rs
@@ -9,7 +9,7 @@ use crate::{
 pub struct Frame {
     width: f32,
     height: f32,
-    buffers: lyon::tessellation::VertexBuffers<triangle::Vertex2D, u16>,
+    buffers: lyon::tessellation::VertexBuffers<triangle::Vertex2D, u32>,
 
     transforms: Transforms,
 }