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⚡ Optimize handler->point path segment helper fn

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More or les x2 speed improvement and reduced the generation
of objects garbage.
This commit is contained in:
Andrey Antukh
2025-04-09 10:27:24 +02:00
parent f12656463d
commit 0e61398d67
2 changed files with 46 additions and 11 deletions
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20
common/src/app/common/types/path/segment.cljc
View File

@@ -102,21 +102,19 @@
(->> (d/enumerate content)
(filterv (fn [[_ segment]] (= (helpers/segment->point segment) point)))))
;; FIXME: candidate to be optimized with native data type operation
(defn handler->point
[content index prefix]
(when (and (some? index)
(some? prefix))
(when (and (<= 0 index)
(< index (count content)))
(let [segment (nth content index)
params (get segment :params)]
(if (= :curve-to (:command segment))
(let [[cx cy] (helpers/prefix->coords prefix)]
(gpt/point (get params cx)
(get params cy)))
(gpt/point (get params :x)
(get params :y)))))))
(impl/-lookup content index
(fn [command c1x c1y c2x c2y x y]
(let [prefix (if (= :curve-to command)
prefix
nil)]
(case prefix
:c1 (gpt/point c1x c1y)
:c2 (gpt/point c2x c2y)
(gpt/point x y)))))))
;; FIXME: revisit this function
(defn handler->node

37
common/test/common_tests/types/path_data_test.cljc
View File

@@ -303,3 +303,40 @@
:index 6}]]
(t/is (= result expect))))
(defn handler->point
"A legacy impl of handler point, used as reference for test"
[content index prefix]
(when (and (some? index)
(some? prefix))
(when (and (<= 0 index)
(< index (count content)))
(let [segment (nth content index)
params (get segment :params)]
(if (= :curve-to (:command segment))
(let [[cx cy] (path.helpers/prefix->coords prefix)]
(gpt/point (get params cx)
(get params cy)))
(gpt/point (get params :x)
(get params :y)))))))
(t/deftest handler-to-point
(let [content (path/content sample-content-2)
result1 (handler->point content 3 :c1)
result2 (handler->point content 1 :c1)
result3 (handler->point content 0 :c1)
expect1 (gpt/point 3.0 7.0)
expect2 (gpt/point 439.0 802.0)
expect3 (gpt/point 480.0 839.0)
result4 (path.segment/handler->point content 3 :c1)
result5 (path.segment/handler->point content 1 :c1)
result6 (path.segment/handler->point content 0 :c1)]
(t/is (= result1 expect1))
(t/is (= result2 expect2))
(t/is (= result3 expect3))
(t/is (= result4 expect1))
(t/is (= result5 expect2))
(t/is (= result6 expect3))))