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🎉 Cache extra tiles

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Aitor Moreno 2025-03-25 16:39:45 +01:00 • committed by Alejandro Alonso
parent e8549ffb79
commit 08fc32cdc6
2 changed files with 15 additions and 10 deletions
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17
render-wasm/src/render.rs
View file

@ -28,6 +28,8 @@ pub use blend::BlendMode;
pub use fonts::*;
pub use images::*;
// This is the extra are used for tile rendering.
const VIEWPORT_INTEREST_AREA_THRESHOLD: i32 = 1;
const MAX_BLOCKING_TIME_MS: i32 = 32;
const NODE_BATCH_THRESHOLD: i32 = 10;
@ -449,17 +451,12 @@ impl RenderState {
},
);
let (sx, sy, ex, ey) = tiles::get_tiles_for_viewbox(self.viewbox);
// TODO: Maybe we should calculate the interest area based on the actual viewport. See how.
let (sx, sy, ex, ey) = tiles::get_tiles_for_viewbox_with_interest(
self.viewbox,
VIEWPORT_INTEREST_AREA_THRESHOLD,
);
debug::render_debug_tiles_for_viewbox(self, sx, sy, ex, ey);
/*
// TODO: Instead of rendering only the visible area
// we could apply an offset to the viewbox to render
// more tiles.
sx - interest_delta
sy - interest_delta
ex + interest_delta
ey + interest_delta
*/
let tile_center = ((ex - sx) / 2, (ey - sy) / 2);
self.pending_tiles = vec![];
self.surfaces.cache_clear_visited();

8
render-wasm/src/render/tiles.rs
View file

@ -33,6 +33,14 @@ pub fn get_tiles_for_viewbox(viewbox: Viewbox) -> (i32, i32, i32, i32) {
get_tiles_for_rect(viewbox.area, tile_size)
}
pub fn get_tiles_for_viewbox_with_interest(
viewbox: Viewbox,
interest: i32,
) -> (i32, i32, i32, i32) {
let (sx, sy, ex, ey) = get_tiles_for_viewbox(viewbox);
(sx - interest, sy - interest, ex + interest, ey + interest)
}
pub fn get_tile_pos(viewbox: Viewbox, (x, y): Tile) -> (f32, f32) {
(
x as f32 * get_tile_size(viewbox),