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Reuse Vec allocations in TextRenderer

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Héctor Ramón Jiménez 2024-03-29 23:46:42 +01:00 committed by Josh Groves
parent c16b6eb957
commit 4f24305ac5
1 changed files with 10 additions and 6 deletions
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16
src/text_render.rs
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@ -20,6 +20,8 @@ pub struct TextRenderer {
vertices_to_render: u32,
pipeline: Arc<RenderPipeline>,
bind_group: wgpu::BindGroup,
glyph_vertices: Vec<GlyphToRender>,
glyph_indices: Vec<u32>,
}
impl TextRenderer {
@ -82,6 +84,8 @@ impl TextRenderer {
vertices_to_render: 0,
pipeline,
bind_group,
glyph_vertices: Vec::new(),
glyph_indices: Vec::new(),
}
}
@ -107,8 +111,8 @@ impl TextRenderer {
});
}
let mut glyph_vertices: Vec<GlyphToRender> = Vec::new();
let mut glyph_indices: Vec<u32> = Vec::new();
self.glyph_vertices.clear();
self.glyph_indices.clear();
let mut glyphs_added = 0;
for text_area in text_areas {
@ -291,7 +295,7 @@ impl TextRenderer {
let depth = metadata_to_depth(glyph.metadata);
glyph_vertices.extend(
self.glyph_vertices.extend(
iter::repeat(GlyphToRender {
pos: [x, y],
dim: [width as u16, height as u16],
@ -310,7 +314,7 @@ impl TextRenderer {
);
let start = 4 * glyphs_added as u32;
glyph_indices.extend([
self.glyph_indices.extend([
start,
start + 1,
start + 2,
@ -332,7 +336,7 @@ impl TextRenderer {
return Ok(());
}
let vertices = glyph_vertices.as_slice();
let vertices = self.glyph_vertices.as_slice();
let vertices_raw = unsafe {
slice::from_raw_parts(
vertices as *const _ as *const u8,
@ -356,7 +360,7 @@ impl TextRenderer {
self.vertex_buffer_size = buffer_size;
}
let indices = glyph_indices.as_slice();
let indices = self.glyph_indices.as_slice();
let indices_raw = unsafe {
slice::from_raw_parts(
indices as *const _ as *const u8,