mirror of
https://github.com/hyprwm/hyprland-plugins.git
synced 2024-12-18 13:19:48 +01:00
333 lines
14 KiB
C++
333 lines
14 KiB
C++
#include "trail.hpp"
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#include <hyprland/src/Compositor.hpp>
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#include <hyprland/src/desktop/Window.hpp>
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#include "globals.hpp"
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void CTrail::onTick() {
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static auto* const PHISTORYSTEP = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprtrails:history_step")->getDataStaticPtr();
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static auto* const PHISTORYPOINTS = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprtrails:history_points")->getDataStaticPtr();
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m_iTimer++;
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const auto PWINDOW = m_pWindow.lock();
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if (m_iTimer > **PHISTORYSTEP) {
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m_dLastGeoms.push_front({box{(float)PWINDOW->m_vRealPosition.value().x, (float)PWINDOW->m_vRealPosition.value().y, (float)PWINDOW->m_vRealSize.value().x,
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(float)PWINDOW->m_vRealSize.value().y},
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std::chrono::system_clock::now()});
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while (m_dLastGeoms.size() > **PHISTORYPOINTS)
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m_dLastGeoms.pop_back();
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m_iTimer = 0;
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}
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if (m_bNeedsDamage) {
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g_pHyprRenderer->damageBox(&m_bLastBox);
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m_bNeedsDamage = false;
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}
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}
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CTrail::CTrail(PHLWINDOW pWindow) : IHyprWindowDecoration(pWindow), m_pWindow(pWindow) {
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m_vLastWindowPos = pWindow->m_vRealPosition.value();
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m_vLastWindowSize = pWindow->m_vRealSize.value();
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pTickCb = HyprlandAPI::registerCallbackDynamic(PHANDLE, "trailTick", [this](void* self, SCallbackInfo& info, std::any data) { this->onTick(); });
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}
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CTrail::~CTrail() {
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damageEntire();
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HyprlandAPI::unregisterCallback(PHANDLE, pTickCb);
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}
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SDecorationPositioningInfo CTrail::getPositioningInfo() {
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return {DECORATION_POSITION_ABSOLUTE};
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}
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void CTrail::onPositioningReply(const SDecorationPositioningReply& reply) {
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; // ignored
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}
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void scaleBox2(box& box, float coeff) {
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float hwl = (box.w - (box.w * coeff)) / 2.0;
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float hhl = (box.h - (box.h * coeff)) / 2.0;
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box.w *= coeff;
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box.h *= coeff;
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box.x += hwl;
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box.y += hhl;
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}
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Vector2D vecForT(const Vector2D& a, const Vector2D& b, const float& t) {
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const Vector2D vec_PQ = b - a;
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return Vector2D{a + vec_PQ * t};
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}
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Vector2D vecForBezierT(const float& t, const std::vector<Vector2D>& verts) {
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std::vector<Vector2D> pts;
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for (size_t vertexIndex = 0; vertexIndex < verts.size() - 1; vertexIndex++) {
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Vector2D p = verts[vertexIndex];
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pts.push_back(vecForT(p, verts[vertexIndex + 1], t));
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}
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if (pts.size() > 1)
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return vecForBezierT(t, pts);
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else
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return pts[0];
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}
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void CTrail::draw(PHLMONITOR pMonitor, const float& a) {
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if (!validMapped(m_pWindow))
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return;
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const auto PWINDOW = m_pWindow.lock();
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if (!PWINDOW->m_sWindowData.decorate.valueOrDefault())
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return;
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static auto* const PBEZIERSTEP = (Hyprlang::FLOAT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprtrails:bezier_step")->getDataStaticPtr();
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static auto* const PPOINTSPERSTEP = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprtrails:points_per_step")->getDataStaticPtr();
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static auto* const PCOLOR = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprtrails:color")->getDataStaticPtr();
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const CHyprColor COLOR = **PCOLOR;
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if (m_dLastGeoms.size() < 2)
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return;
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box thisbox =
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box{(float)PWINDOW->m_vRealPosition.value().x, (float)PWINDOW->m_vRealPosition.value().y, (float)PWINDOW->m_vRealSize.value().x, (float)PWINDOW->m_vRealSize.value().y};
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CBox wlrbox = {thisbox.x - pMonitor->vecPosition.x, thisbox.y - pMonitor->vecPosition.y, thisbox.w, thisbox.h};
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wlrbox.scale(pMonitor->scale).round();
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g_pHyprOpenGL->scissor((CBox*)nullptr); // allow the entire window and stencil to render
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glClearStencil(0);
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glClear(GL_STENCIL_BUFFER_BIT);
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glEnable(GL_STENCIL_TEST);
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glStencilFunc(GL_ALWAYS, 1, -1);
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glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
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glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
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g_pHyprOpenGL->renderRect(&wlrbox, CHyprColor(0, 0, 0, 0), PWINDOW->rounding() * pMonitor->scale);
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glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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glStencilFunc(GL_NOTEQUAL, 1, -1);
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glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
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CBox monbox = {0, 0, g_pHyprOpenGL->m_RenderData.pMonitor->vecTransformedSize.x, g_pHyprOpenGL->m_RenderData.pMonitor->vecTransformedSize.y};
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Mat3x3 matrix = g_pHyprOpenGL->m_RenderData.monitorProjection.projectBox(monbox, wlTransformToHyprutils(invertTransform(WL_OUTPUT_TRANSFORM_NORMAL)), monbox.rot);
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Mat3x3 glMatrix = g_pHyprOpenGL->m_RenderData.projection.copy().multiply(matrix);
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g_pHyprOpenGL->blend(true);
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glUseProgram(g_pGlobalState->trailShader.program);
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#ifndef GLES2
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glUniformMatrix3fv(g_pGlobalState->trailShader.proj, 1, GL_TRUE, glMatrix.getMatrix().data());
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#else
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glMatrix.transpose();
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glUniformMatrix3fv(g_pGlobalState->trailShader.proj, 1, GL_FALSE, glMatrix.getMatrix().data());
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#endif
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std::vector<point2> points;
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std::vector<Vector2D> bezierPts;
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std::vector<Vector2D> pointsForBezier;
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std::vector<float> agesForBezier;
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float originalCoeff = 50;
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auto msFrom = [](std::chrono::system_clock::time_point t) -> float {
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return std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::system_clock::now() - t).count() / 1000.0;
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};
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auto dist = [&](const point2& a, const point2& b) -> float {
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Vector2D diff = Vector2D{a.x - b.x, a.y - b.y} * pMonitor->vecSize;
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return std::sqrt(diff.x * diff.x + diff.y * diff.y);
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};
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float msMaxToLast = msFrom(m_dLastGeoms.back().second);
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float dists[2] = {0, 0};
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Vector2D mainVec = {originalCoeff / pMonitor->vecSize.x, originalCoeff / pMonitor->vecSize.y};
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Vector2D windowMiddle = PWINDOW->middle() - pMonitor->vecPosition;
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points.push_back(
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Vector2D{cos(0) * mainVec.x - sin(0) * mainVec.y + windowMiddle.x / pMonitor->vecSize.x, sin(0) * mainVec.x + cos(0) * mainVec.y + windowMiddle.y / pMonitor->vecSize.y});
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points.push_back(Vector2D{cos(-M_PI_2) * mainVec.x - sin(-M_PI_2) * mainVec.y + windowMiddle.x / pMonitor->vecSize.x,
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sin(-M_PI_2) * mainVec.x + cos(-M_PI_2) * mainVec.y + windowMiddle.y / pMonitor->vecSize.y});
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points.push_back(Vector2D{cos(M_PI_2) * mainVec.x - sin(M_PI_2) * mainVec.y + windowMiddle.x / pMonitor->vecSize.x,
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sin(M_PI_2) * mainVec.x + cos(M_PI_2) * mainVec.y + windowMiddle.y / pMonitor->vecSize.y});
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points.push_back(Vector2D{cos(M_PI) * mainVec.x - sin(M_PI) * mainVec.y + windowMiddle.x / pMonitor->vecSize.x,
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sin(M_PI) * mainVec.x + cos(M_PI) * mainVec.y + windowMiddle.y / pMonitor->vecSize.y});
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pointsForBezier.push_back(windowMiddle);
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agesForBezier.push_back(0);
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for (size_t i = 0; i < m_dLastGeoms.size(); i += 1) {
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box box = m_dLastGeoms[i].first;
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box.x -= pMonitor->vecPosition.x;
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box.y -= pMonitor->vecPosition.y;
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Vector2D middle = {box.x + box.w / 2.0, box.y + box.h / 2.0};
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if (middle == pointsForBezier[pointsForBezier.size() - 1])
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continue;
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pointsForBezier.push_back(middle);
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agesForBezier.push_back(msFrom(m_dLastGeoms[i].second));
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}
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if (pointsForBezier.size() < 3) {
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glClearStencil(0);
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glClear(GL_STENCIL_BUFFER_BIT);
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glDisable(GL_STENCIL_TEST);
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glStencilMask(-1);
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glStencilFunc(GL_ALWAYS, 1, 0xFF);
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g_pHyprOpenGL->scissor((CBox*)nullptr);
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return;
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}
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float maxAge = agesForBezier.back();
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float tCoeff = **PBEZIERSTEP;
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int pointsPerBezier = **PPOINTSPERSTEP;
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bezierPts.push_back(vecForBezierT(0, pointsForBezier));
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for (float t = tCoeff; t <= 1.0; t += tCoeff) {
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bezierPts.push_back(vecForBezierT(t, pointsForBezier));
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const Vector2D& lastbezier = bezierPts.back();
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const Vector2D& lastprevbezier = bezierPts[bezierPts.size() - 2];
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for (size_t i = 1; i < pointsPerBezier + 1; ++i) {
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const float bezierPointStep = (1.0 / (pointsPerBezier + 2));
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const Vector2D& middle = vecForT(lastprevbezier, lastbezier, bezierPointStep * (i + 1));
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const Vector2D& lastmiddle = vecForT(lastprevbezier, lastbezier, bezierPointStep * i);
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Vector2D vecNormal = {middle.x - lastmiddle.x, middle.y - lastmiddle.y};
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// normalize vec
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float invlen = 1.0 / std::sqrt(vecNormal.x * vecNormal.x + vecNormal.y * vecNormal.y);
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vecNormal.x *= invlen;
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vecNormal.y *= invlen;
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// make sure it points up
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// vecNormal.y = std::abs(vecNormal.y);
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// extend by coeff
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float ageCoeff = t * (agesForBezier.size() - 1);
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float ageFloor = std::floor(ageCoeff);
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float ageCeil = std::ceil(ageCoeff);
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float approxAge =
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agesForBezier[static_cast<int>(ageFloor)] + (agesForBezier[static_cast<int>(ageCeil)] - agesForBezier[static_cast<int>(ageFloor)]) * (ageCoeff - ageFloor);
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float coeff = originalCoeff * (1.0 - (approxAge / maxAge));
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Vector2D newVec = {vecNormal.x * coeff / pMonitor->vecSize.x, vecNormal.y * coeff / pMonitor->vecSize.y};
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if ((newVec.x == 0 && newVec.y == 0) || std::isnan(newVec.x) || std::isnan(newVec.y))
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continue;
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// rotate by 90 and -90 and add middle
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points.push_back(Vector2D{cos(M_PI_2) * newVec.x - sin(M_PI_2) * newVec.y + middle.x / pMonitor->vecSize.x,
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sin(M_PI_2) * newVec.x + cos(M_PI_2) * newVec.y + middle.y / pMonitor->vecSize.y});
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points.push_back(Vector2D{cos(-M_PI_2) * newVec.x - sin(-M_PI_2) * newVec.y + middle.x / pMonitor->vecSize.x,
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sin(-M_PI_2) * newVec.x + cos(-M_PI_2) * newVec.y + middle.y / pMonitor->vecSize.y});
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}
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}
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box thisboxopengl = box{(PWINDOW->m_vRealPosition.value().x - pMonitor->vecPosition.x) / pMonitor->vecSize.x,
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(PWINDOW->m_vRealPosition.value().y - pMonitor->vecPosition.y) / pMonitor->vecSize.y,
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(PWINDOW->m_vRealPosition.value().x + PWINDOW->m_vRealSize.value().x) / pMonitor->vecSize.x,
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(PWINDOW->m_vRealPosition.value().y + PWINDOW->m_vRealSize.value().y) / pMonitor->vecSize.y};
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glUniform4f(g_pGlobalState->trailShader.gradient, thisboxopengl.x, thisboxopengl.y, thisboxopengl.w, thisboxopengl.h);
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glUniform4f(g_pGlobalState->trailShader.color, COLOR.r, COLOR.g, COLOR.b, COLOR.a);
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CBox transformedBox = monbox;
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transformedBox.transform(wlTransformToHyprutils(invertTransform(g_pHyprOpenGL->m_RenderData.pMonitor->transform)), g_pHyprOpenGL->m_RenderData.pMonitor->vecTransformedSize.x,
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g_pHyprOpenGL->m_RenderData.pMonitor->vecTransformedSize.y);
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glVertexAttribPointer(g_pGlobalState->trailShader.posAttrib, 2, GL_FLOAT, GL_FALSE, 0, (float*)points.data());
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glEnableVertexAttribArray(g_pGlobalState->trailShader.posAttrib);
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if (g_pHyprOpenGL->m_RenderData.clipBox.width != 0 && g_pHyprOpenGL->m_RenderData.clipBox.height != 0) {
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CRegion damageClip{g_pHyprOpenGL->m_RenderData.clipBox.x, g_pHyprOpenGL->m_RenderData.clipBox.y, g_pHyprOpenGL->m_RenderData.clipBox.width,
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g_pHyprOpenGL->m_RenderData.clipBox.height};
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damageClip.intersect(g_pHyprOpenGL->m_RenderData.damage);
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if (!damageClip.empty()) {
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for (auto& RECT : damageClip.getRects()) {
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g_pHyprOpenGL->scissor(&RECT);
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glDrawArrays(GL_TRIANGLE_STRIP, 0, points.size());
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}
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}
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} else {
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for (auto& RECT : g_pHyprOpenGL->m_RenderData.damage.getRects()) {
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g_pHyprOpenGL->scissor(&RECT);
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glDrawArrays(GL_TRIANGLE_STRIP, 0, points.size());
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}
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}
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glDisableVertexAttribArray(g_pGlobalState->trailShader.posAttrib);
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glClearStencil(0);
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glClear(GL_STENCIL_BUFFER_BIT);
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glDisable(GL_STENCIL_TEST);
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glStencilMask(-1);
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glStencilFunc(GL_ALWAYS, 1, 0xFF);
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g_pHyprOpenGL->scissor((CBox*)nullptr);
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// calculate damage
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float minX = 9999999;
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float minY = 9999999;
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float maxX = -9999999;
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float maxY = -9999999;
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for (auto& p : points) {
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if (p.x < minX)
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minX = p.x;
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if (p.y < minY)
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minY = p.y;
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if (p.x > maxX)
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maxX = p.x;
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if (p.y > maxY)
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maxY = p.y;
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}
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// bring back to global coords
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minX *= pMonitor->vecSize.x;
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minY *= pMonitor->vecSize.y;
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maxX *= pMonitor->vecSize.x;
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maxY *= pMonitor->vecSize.y;
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m_bLastBox.x = minX + pMonitor->vecPosition.x;
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m_bLastBox.y = minY + pMonitor->vecPosition.y;
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m_bLastBox.width = maxX - minX;
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m_bLastBox.height = maxY - minY;
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m_bNeedsDamage = true;
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}
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eDecorationType CTrail::getDecorationType() {
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return DECORATION_CUSTOM;
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}
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void CTrail::updateWindow(PHLWINDOW pWindow) {
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const auto PWORKSPACE = pWindow->m_pWorkspace;
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const auto WORKSPACEOFFSET = PWORKSPACE && !pWindow->m_bPinned ? PWORKSPACE->m_vRenderOffset.value() : Vector2D();
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m_vLastWindowPos = pWindow->m_vRealPosition.value() + WORKSPACEOFFSET;
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m_vLastWindowSize = pWindow->m_vRealSize.value();
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damageEntire();
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}
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void CTrail::damageEntire() {
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CBox dm = {(int)(m_vLastWindowPos.x - m_seExtents.topLeft.x), (int)(m_vLastWindowPos.y - m_seExtents.topLeft.y),
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(int)(m_vLastWindowSize.x + m_seExtents.topLeft.x + m_seExtents.bottomRight.x), (int)m_seExtents.topLeft.y};
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g_pHyprRenderer->damageBox(&dm);
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}
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