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Use buffers for vertex data

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This commit is contained in:
Bob Shelline 2020-11-04 19:47:41 -07:00
parent a83639a52a
commit dda634cf0a
6 changed files with 93 additions and 9 deletions
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22
editor/src/lib.rs
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@ -11,15 +11,18 @@
// re-enable this when working on performance optimizations than have it block PRs.
#![allow(clippy::large_enum_variant)]
use crate::vertex::Vertex;
use std::error::Error;
use std::io;
use std::path::Path;
use wgpu::util::DeviceExt;
use wgpu_glyph::{ab_glyph, GlyphBrushBuilder, Section, Text};
use winit::event::{ElementState, ModifiersState, VirtualKeyCode};
use winit::event_loop::ControlFlow;
pub mod ast;
pub mod text_state;
mod vertex;
/// The editor is actually launched from the CLI if you pass it zero arguments,
/// or if you provide it 1 or more files or directories to open on launch.
@ -117,7 +120,7 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
depth_stencil_state: None,
vertex_state: wgpu::VertexStateDescriptor {
index_format: wgpu::IndexFormat::Uint16,
vertex_buffers: &[],
vertex_buffers: &[Vertex::buffer_descriptor()],
},
sample_count: 1,
sample_mask: !0,
@ -216,6 +219,13 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
.expect("Failed to acquire next swap chain texture")
.output;
// Vertex Buffer for drawing rectangles
let vertex_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
label: Some("Vertex Buffer"),
contents: bytemuck::cast_slice(&vertex::test()),
usage: wgpu::BufferUsage::VERTEX,
});
// Clear frame
{
let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
@ -236,7 +246,15 @@ fn run_event_loop() -> Result<(), Box<dyn Error>> {
});
render_pass.set_pipeline(&triangle_pipeline);
render_pass.draw(0..3, 0..1);
render_pass.set_vertex_buffer(
0, // The buffer slot to use for this vertex buffer.
vertex_buffer.slice(..), // Use the entire buffer.
);
render_pass.draw(
0..((&vertex::test()).len() as u32), // Draw all of the vertices from our test data.
0..1, // Instances
);
}
glyph_brush.queue(Section {