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more comments and minor cleanup

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Anton-4 2020-12-12 18:11:57 +01:00
parent ea3f15f950
commit fc4d510c40
2 changed files with 12 additions and 8 deletions
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19
editor/src/lib.rs
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@ -178,22 +178,23 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
},
);
//update orthographic buffer according to new window size
// 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"),
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
// get a command encoder for the current frame
let mut encoder =
gpu_device.create_command_encoder(&wgpu::CommandEncoderDescriptor {
label: Some("Resize"),
});
// overwrite the new buffer over the old one
encoder.copy_buffer_to_buffer(
&new_ortho_buffer,
0,
@ -301,12 +302,14 @@ fn make_rect_pipeline(
) -> (wgpu::RenderPipeline, BindGroup, Buffer) {
let uniforms = Uniforms::new(swap_chain_descr.width, swap_chain_descr.height);
// orthographic projection is used to transfrom pixel coords to the coordinate system used by wgpu
let ortho_buffer = gpu_device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
label: Some("Ortho Uniform Buffer"),
label: Some("Ortho uniform buffer"),
contents: bytemuck::cast_slice(&[uniforms]),
usage: wgpu::BufferUsage::UNIFORM | wgpu::BufferUsage::COPY_DST,
});
// bind groups consist of extra resources that are provided to the shaders
let ortho_bind_group_layout = gpu_device.create_bind_group_layout(&BindGroupLayoutDescriptor {
entries: &[BindGroupLayoutEntry {
binding: 0,
@ -317,7 +320,7 @@ fn make_rect_pipeline(
},
count: None,
}],
label: None,
label: Some("Ortho bind group layout"),
});
let ortho_bind_group = gpu_device.create_bind_group(&wgpu::BindGroupDescriptor {
@ -326,13 +329,13 @@ fn make_rect_pipeline(
binding: 0,
resource: wgpu::BindingResource::Buffer(ortho_buffer.slice(..)),
}],
label: Some("ortho_bind_group"),
label: Some("Ortho bind group"),
});
let pipeline_layout = gpu_device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
bind_group_layouts: &[&ortho_bind_group_layout],
push_constant_ranges: &[],
label: Some("Rectangle Pipeline Layout"),
label: Some("Rectangle pipeline layout"),
});
let pipeline = create_render_pipeline(
&gpu_device,
@ -358,7 +361,7 @@ fn create_render_pipeline(
let fs_module = device.create_shader_module(fs_src);
device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
label: Some("Render Pipeline"),
label: Some("Render pipeline"),
layout: Some(&layout),
vertex_stage: wgpu::ProgrammableStageDescriptor {
module: &vs_module,