diff options
| author | Maximilian Seidler <78690852+PaideiaDilemma@users.noreply.github.com> | 2025-01-07 17:55:14 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-01-07 17:55:14 +0000 |
| commit | 5642ed331df56375c55cd8d56a14054af8bdf8f2 (patch) | |
| tree | 74a85b022b3319cdfad01343358eaf09a94841d1 /src/helpers/BezierCurve.cpp | |
| parent | c7086f936a06abebcc863c35f634760ca1ee90c0 (diff) | |
core: move parts of the animation system to hyprutils (#8868)
* core: change animation manager to use Hyprutils::Animation
* config: move animation config to hyprutils animation tree
* use g_pAnimationManager->createAnimation and the new PHLANIMVAR template
* core: use CGenericAnimatedVariabled::{enabled,setConfig,getStyle} and adapt callbacks
* core: adapt animated variable usage (dereference the shared pointer)
* misc: bump CMakeLists to hyprutils 0.3.3
Diffstat (limited to 'src/helpers/BezierCurve.cpp')
| -rw-r--r-- | src/helpers/BezierCurve.cpp | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/src/helpers/BezierCurve.cpp b/src/helpers/BezierCurve.cpp deleted file mode 100644 index a0610fc9..00000000 --- a/src/helpers/BezierCurve.cpp +++ /dev/null @@ -1,90 +0,0 @@ -#include "BezierCurve.hpp" -#include "../debug/Log.hpp" -#include "../macros.hpp" - -#include <chrono> -#include <algorithm> - -void CBezierCurve::setup(std::vector<Vector2D>* pVec) { - const auto BEGIN = std::chrono::high_resolution_clock::now(); - - // Avoid reallocations by reserving enough memory upfront - m_vPoints.resize(pVec->size() + 2); - m_vPoints[0] = Vector2D(0, 0); // Start point - size_t index = 1; // Start after the first element - for (const auto& vec : *pVec) { - if (index < m_vPoints.size() - 1) { // Bounds check to ensure safety - m_vPoints[index] = vec; - ++index; - } - } - m_vPoints.back() = Vector2D(1, 1); // End point - - RASSERT(m_vPoints.size() == 4, "CBezierCurve only supports cubic beziers! (points num: {})", m_vPoints.size()); - - // bake BAKEDPOINTS points for faster lookups - // T -> X ( / BAKEDPOINTS ) - for (int i = 0; i < BAKEDPOINTS; ++i) { - float const t = (i + 1) / (float)BAKEDPOINTS; - m_aPointsBaked[i] = Vector2D(getXForT(t), getYForT(t)); - } - - const auto ELAPSEDUS = std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now() - BEGIN).count() / 1000.f; - const auto POINTSSIZE = m_aPointsBaked.size() * sizeof(m_aPointsBaked[0]) / 1000.f; - - const auto BEGINCALC = std::chrono::high_resolution_clock::now(); - for (int j = 1; j < 10; ++j) { - float i = j / 10.0f; - getYForPoint(i); - } - const auto ELAPSEDCALCAVG = std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now() - BEGINCALC).count() / 1000.f / 10.f; - - Debug::log(LOG, "Created a bezier curve, baked {} points, mem usage: {:.2f}kB, time to bake: {:.2f}µs. Estimated average calc time: {:.2f}µs.", BAKEDPOINTS, POINTSSIZE, - ELAPSEDUS, ELAPSEDCALCAVG); -} - -float CBezierCurve::getXForT(float const& t) const { - float t2 = t * t; - float t3 = t2 * t; - - return 3 * t * (1 - t) * (1 - t) * m_vPoints[1].x + 3 * t2 * (1 - t) * m_vPoints[2].x + t3 * m_vPoints[3].x; -} - -float CBezierCurve::getYForT(float const& t) const { - float t2 = t * t; - float t3 = t2 * t; - - return 3 * t * (1 - t) * (1 - t) * m_vPoints[1].y + 3 * t2 * (1 - t) * m_vPoints[2].y + t3 * m_vPoints[3].y; -} - -// Todo: this probably can be done better and faster -float CBezierCurve::getYForPoint(float const& x) const { - if (x >= 1.f) - return 1.f; - if (x <= 0.f) - return 0.f; - - int index = 0; - bool below = true; - for (int step = (BAKEDPOINTS + 1) / 2; step > 0; step /= 2) { - if (below) - index += step; - else - index -= step; - - below = m_aPointsBaked[index].x < x; - } - - int lowerIndex = index - (!below || index == BAKEDPOINTS - 1); - - // in the name of performance i shall make a hack - const auto LOWERPOINT = &m_aPointsBaked[lowerIndex]; - const auto UPPERPOINT = &m_aPointsBaked[lowerIndex + 1]; - - const auto PERCINDELTA = (x - LOWERPOINT->x) / (UPPERPOINT->x - LOWERPOINT->x); - - if (std::isnan(PERCINDELTA) || std::isinf(PERCINDELTA)) // can sometimes happen for VERY small x - return 0.f; - - return LOWERPOINT->y + (UPPERPOINT->y - LOWERPOINT->y) * PERCINDELTA; -} |
