forgot to submit cmd_queue

editor/src/lib.rs

@@ -20,15 +20,15 @@
 use crate::buffer::create_rect_buffers;
 use crate::text::{build_glyph_brush, Text};
 use crate::vertex::Vertex;
+use cgmath::Ortho;
 use std::error::Error;
 use std::io;
 use std::path::Path;
+use wgpu::util::DeviceExt;
+use wgpu::{BindGroup, BindGroupLayoutDescriptor, BindGroupLayoutEntry, Buffer, ShaderStage};
 use winit::event;
 use winit::event::{Event, ModifiersState};
 use winit::event_loop::ControlFlow;
-use wgpu::{BindGroupLayoutDescriptor, BindGroupLayoutEntry, BindGroup, ShaderStage};
-use wgpu::util::DeviceExt;
-use cgmath::{Ortho};
 
 pub mod ast;
 pub mod bucket;
@@ -55,30 +55,26 @@ pub fn launch(_filepaths: &[&Path]) -> io::Result<()> {
 struct Uniforms {
     // We can't use cgmath with bytemuck directly so we'll have
     // to convert the Matrix4 into a 4x4 f32 array
-    ortho: [[f32; 4]; 4]
+    ortho: [[f32; 4]; 4],
 }
 
-
 impl Uniforms {
     fn new(w: u32, h: u32) -> Self {
-        let ortho: cgmath::Matrix4<f32> =
-            Ortho::<f32> {
-                left: 0.0,
-                right: w as f32,
-                bottom: h as f32,
-                top: 0.0,
-                near: -1.0,
-                far: 1.0,
-            }
-            .into();
-            println!("{:?}", ortho);
+        let ortho: cgmath::Matrix4<f32> = Ortho::<f32> {
+            left: 0.0,
+            right: w as f32,
+            bottom: h as f32,
+            top: 0.0,
+            near: -1.0,
+            far: 1.0,
+        }
+        .into();
         Self {
             ortho: ortho.into(),
         }
     }
 }
 
-
 fn run_event_loop() -> Result<(), Box<dyn Error>> {
     env_logger::init();
 
@@ -124,7 +120,6 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
     // Prepare swap chain
     let render_format = wgpu::TextureFormat::Bgra8UnormSrgb;
     let mut size = window.inner_size();
-    println!("size: {:?}", size);
 
     let swap_chain_descr = wgpu::SwapChainDescriptor {
         usage: wgpu::TextureUsage::OUTPUT_ATTACHMENT,
@@ -137,7 +132,8 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
 
     let mut swap_chain = gpu_device.create_swap_chain(&surface, &swap_chain_descr);
 
-    let (rect_pipeline, ortho_bind_group) = make_rect_pipeline(&gpu_device, &swap_chain_descr);
+    let (rect_pipeline, ortho_bind_group, ortho_buffer) =
+        make_rect_pipeline(&gpu_device, &swap_chain_descr);
 
     let mut glyph_brush = build_glyph_brush(&gpu_device, render_format)?;
 
@@ -158,10 +154,12 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
         }
 
         match event {
+            //Close
             Event::WindowEvent {
                 event: event::WindowEvent::CloseRequested,
                 ..
             } => *control_flow = winit::event_loop::ControlFlow::Exit,
+            //Resize
             Event::WindowEvent {
                 event: event::WindowEvent::Resized(new_size),
                 ..
@@ -179,13 +177,42 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
                         present_mode: wgpu::PresentMode::Immediate,
                     },
                 );
+
+                //update orthographic buffer according to new window size
+                let new_uniforms = Uniforms::new(size.width, size.height);
+
+                let new_ortho_buffer =
+                    gpu_device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
+                        label: Some("Ortho Uniform Buffer"),
+                        contents: bytemuck::cast_slice(&[new_uniforms]),
+                        usage: wgpu::BufferUsage::UNIFORM | wgpu::BufferUsage::COPY_SRC,
+                    });
+
+                // Get a command encoder for the current frame
+                let mut encoder =
+                    gpu_device.create_command_encoder(&wgpu::CommandEncoderDescriptor {
+                        label: Some("Resize"),
+                    });
+
+                encoder.copy_buffer_to_buffer(
+                    &new_ortho_buffer,
+                    0,
+                    &ortho_buffer,
+                    0,
+                    (std::mem::size_of::<Uniforms>() * vec![new_uniforms].as_slice().len())
+                        as wgpu::BufferAddress,
+                );
+
+                cmd_queue.submit(Some(encoder.finish()));
             }
+            //Received Character
             Event::WindowEvent {
                 event: event::WindowEvent::ReceivedCharacter(ch),
                 ..
             } => {
                 update_text_state(&mut text_state, &ch);
             }
+            //Keyboard Input
             Event::WindowEvent {
                 event: event::WindowEvent::KeyboardInput { input, .. },
                 ..
@@ -198,6 +225,7 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
                     );
                 }
             }
+            //Modifiers Changed
             Event::WindowEvent {
                 event: event::WindowEvent::ModifiersChanged(modifiers),
                 ..
@@ -270,50 +298,39 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
 fn make_rect_pipeline(
     gpu_device: &wgpu::Device,
     swap_chain_descr: &wgpu::SwapChainDescriptor,
-) -> (wgpu::RenderPipeline, BindGroup) {
+) -> (wgpu::RenderPipeline, BindGroup, Buffer) {
     let uniforms = Uniforms::new(swap_chain_descr.width, swap_chain_descr.height);
 
-    let ortho_buffer = gpu_device.create_buffer_init(
-        &wgpu::util::BufferInitDescriptor {
-            label: Some("Ortho Uniform Buffer"),
-            contents: bytemuck::cast_slice(&[uniforms]),
-            usage: wgpu::BufferUsage::UNIFORM | wgpu::BufferUsage::COPY_DST,
-        }
-    );    
+    let ortho_buffer = gpu_device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
+        label: Some("Ortho Uniform Buffer"),
+        contents: bytemuck::cast_slice(&[uniforms]),
+        usage: wgpu::BufferUsage::UNIFORM | wgpu::BufferUsage::COPY_DST,
+    });
 
-    let ortho_bind_group_layout = 
-        gpu_device.create_bind_group_layout(&BindGroupLayoutDescriptor {
-            entries: &[
-                BindGroupLayoutEntry {
-                    binding: 0,
-                    visibility: ShaderStage::VERTEX,
-                    ty: wgpu::BindingType::UniformBuffer {
-                        dynamic: false,
-                        min_binding_size: None,
-                    },
-                    count: None,
-                }
-            ],
-            label: None
-        });
+    let ortho_bind_group_layout = gpu_device.create_bind_group_layout(&BindGroupLayoutDescriptor {
+        entries: &[BindGroupLayoutEntry {
+            binding: 0,
+            visibility: ShaderStage::VERTEX,
+            ty: wgpu::BindingType::UniformBuffer {
+                dynamic: false,
+                min_binding_size: None,
+            },
+            count: None,
+        }],
+        label: None,
+    });
 
     let ortho_bind_group = gpu_device.create_bind_group(&wgpu::BindGroupDescriptor {
         layout: &ortho_bind_group_layout,
-        entries: &[
-            wgpu::BindGroupEntry {
-                binding: 0,
-                resource: wgpu::BindingResource::Buffer(ortho_buffer.slice(..))
-            }
-        ],
+        entries: &[wgpu::BindGroupEntry {
+            binding: 0,
+            resource: wgpu::BindingResource::Buffer(ortho_buffer.slice(..)),
+        }],
         label: Some("ortho_bind_group"),
     });
-        
-
 
     let pipeline_layout = gpu_device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
-        bind_group_layouts: &[
-            &ortho_bind_group_layout
-        ],
+        bind_group_layouts: &[&ortho_bind_group_layout],
         push_constant_ranges: &[],
         label: Some("Rectangle Pipeline Layout"),
     });
@@ -326,7 +343,7 @@ fn make_rect_pipeline(
         wgpu::include_spirv!("shaders/rect.frag.spv"),
     );
 
-    (pipeline, ortho_bind_group)
+    (pipeline, ortho_bind_group, ortho_buffer)
 }
 
 fn create_render_pipeline(