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Update debian/patches/0001-Bezier-Opti.patch

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ferreo 2024-11-21 11:01:55 +01:00
parent 2c14356f3b
commit f5816a6d77
1 changed files with 17 additions and 12 deletions
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29
debian/patches/0001-Bezier-Opti.patch vendored
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@ -1,4 +1,4 @@
From 3b7208caffa1362e43eff57d58b86d38e484193b Mon Sep 17 00:00:00 2001
From a5fff93908a78740c17a7e5edccc01ad0edda5c5 Mon Sep 17 00:00:00 2001
From: Tom Englund <tomenglund26@gmail.com>
Date: Tue, 19 Nov 2024 18:46:03 +0100
Subject: [PATCH] bezier: optimize setup of bezier curves
@ -15,15 +15,15 @@ references where we can.
these changes we are now down to an average of "time to bake: 2.50µs."
on my machine compared to before average of "time to bake: 11.15µs"
---
src/helpers/BezierCurve.cpp | 35 ++++++++++++++++++++---------------
src/helpers/BezierCurve.cpp | 39 ++++++++++++++++++++++++-------------
src/helpers/BezierCurve.hpp | 8 ++++----
2 files changed, 24 insertions(+), 19 deletions(-)
2 files changed, 29 insertions(+), 18 deletions(-)
diff --git a/src/helpers/BezierCurve.cpp b/src/helpers/BezierCurve.cpp
index ea567ad61ca..0ef0883f805 100644
index ea567ad61ca..23fcd691f24 100644
--- a/src/helpers/BezierCurve.cpp
+++ b/src/helpers/BezierCurve.cpp
@@ -6,24 +6,21 @@
@@ -6,24 +6,27 @@
#include <algorithm>
void CBezierCurve::setup(std::vector<Vector2D>* pVec) {
@ -35,13 +35,18 @@ index ea567ad61ca..0ef0883f805 100644
-
- for (auto const& p : *pVec) {
- m_dPoints.push_back(p);
- }
-
- m_dPoints.emplace_back(Vector2D(1, 1));
+ // Avoid reallocations by reserving enough memory upfront
+ m_dPoints.resize(pVec->size() + 2);
+ m_dPoints[0] = Vector2D(0, 0); // Start point
+ std::copy(pVec->begin(), pVec->end(), m_dPoints.begin() + 1);
+ size_t index = 1; // Start after the first element
+ for (const auto& vec : *pVec) {
+ if (index < m_dPoints.size() - 1) { // Bounds check to ensure safety
+ m_dPoints[index] = vec;
+ ++index;
+ }
}
-
- m_dPoints.emplace_back(Vector2D(1, 1));
+ m_dPoints.back() = Vector2D(1, 1); // End point
RASSERT(m_dPoints.size() == 4, "CBezierCurve only supports cubic beziers! (points num: {})", m_dPoints.size());
@ -55,7 +60,7 @@ index ea567ad61ca..0ef0883f805 100644
}
const auto ELAPSEDUS = std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now() - BEGIN).count() / 1000.f;
@@ -40,18 +37,26 @@ void CBezierCurve::setup(std::vector<Vector2D>* pVec) {
@@ -40,18 +43,26 @@ void CBezierCurve::setup(std::vector<Vector2D>* pVec) {
ELAPSEDUS, ELAPSEDCALCAVG);
}
@ -109,5 +114,5 @@ index 54af46a6b0f..1a842f5a833 100644
std::array<Vector2D, BAKEDPOINTS> m_aPointsBaked;
};