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Improve RefCell usage

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Use a RefCell only where we need it, in the glyph cache. We don't need
it for the platform data.
This commit is contained in:
Simon Hausmann 2020-08-13 10:23:08 +02:00
parent 4606268eab
commit df2620838e
2 changed files with 10 additions and 14 deletions
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11
sixtyfps_runtime/rendering_backends/gl/glyphcache.rs
View file

@ -10,22 +10,19 @@ type GlyphsByPixelSize = Vec<Rc<RefCell<CachedFontGlyphs>>>;
#[derive(Default)]
pub(crate) struct GlyphCache {
glyphs_by_font: HashMap<FontHandle, GlyphsByPixelSize>,
glyphs_by_font: RefCell<HashMap<FontHandle, GlyphsByPixelSize>>,
}
impl GlyphCache {
pub fn find_font(
&mut self,
font_family: &str,
pixel_size: f32,
) -> Rc<RefCell<CachedFontGlyphs>> {
pub fn find_font(&self, font_family: &str, pixel_size: f32) -> Rc<RefCell<CachedFontGlyphs>> {
let font =
sixtyfps_corelib::font::FONT_CACHE.with(|fc| fc.find_font(font_family, pixel_size));
let font_handle = font.handle();
let mut glyphs_by_font = self.glyphs_by_font.borrow_mut();
let glyphs_by_pixel_size =
self.glyphs_by_font.entry(font_handle.clone()).or_insert(GlyphsByPixelSize::default());
glyphs_by_font.entry(font_handle.clone()).or_insert(GlyphsByPixelSize::default());
glyphs_by_pixel_size
.iter()

13
sixtyfps_runtime/rendering_backends/gl/lib.rs
View file

@ -104,7 +104,7 @@ pub struct GLRenderer {
path_shader: PathShader,
image_shader: ImageShader,
#[cfg(not(target_arch = "wasm32"))]
platform_data: Rc<RefCell<PlatformData>>,
platform_data: Rc<PlatformData>,
texture_atlas: Rc<RefCell<TextureAtlas>>,
#[cfg(target_arch = "wasm32")]
window: Rc<winit::window::Window>,
@ -118,7 +118,7 @@ pub struct GLRenderingPrimitivesBuilder {
stroke_tesselator: StrokeTessellator,
texture_atlas: Rc<RefCell<TextureAtlas>>,
#[cfg(not(target_arch = "wasm32"))]
platform_data: Rc<RefCell<PlatformData>>,
platform_data: Rc<PlatformData>,
#[cfg(target_arch = "wasm32")]
window: Rc<winit::window::Window>,
@ -131,7 +131,7 @@ pub struct GLFrame {
path_shader: PathShader,
image_shader: ImageShader,
#[cfg(not(target_arch = "wasm32"))]
platform_data: Rc<RefCell<PlatformData>>,
platform_data: Rc<PlatformData>,
root_matrix: cgmath::Matrix4<f32>,
#[cfg(not(target_arch = "wasm32"))]
windowed_context: glutin::WindowedContext<glutin::PossiblyCurrent>,
@ -195,7 +195,7 @@ impl GLRenderer {
let path_shader = PathShader::new(&context);
let image_shader = ImageShader::new(&context);
#[cfg(not(target_arch = "wasm32"))]
let platform_data = Rc::new(RefCell::new(PlatformData::new(&context)));
let platform_data = Rc::new(PlatformData::new(&context));
GLRenderer {
context,
@ -575,8 +575,7 @@ impl GLRenderingPrimitivesBuilder {
pixel_size: f32,
color: Color,
) -> GLRenderingPrimitive {
let mut pd = self.platform_data.borrow_mut();
let cached_glyphs = pd.glyph_cache.find_font(font_family, pixel_size);
let cached_glyphs = self.platform_data.glyph_cache.find_font(font_family, pixel_size);
let mut cached_glyphs = cached_glyphs.borrow_mut();
let mut atlas = self.texture_atlas.borrow_mut();
let glyphs = cached_glyphs.layout_glyphs(&self.context, &mut atlas, text);
@ -791,7 +790,7 @@ impl GraphicsFrame for GLFrame {
let (r, g, b, a) = color.as_rgba_f32();
for GlyphRun { vertices, texture_vertices, texture, vertex_count } in glyph_runs {
self.platform_data.borrow().glyph_shader.bind(
self.platform_data.glyph_shader.bind(
&self.context,
&to_gl_matrix(&matrix),
&[r, g, b, a],