Placefile icons looping

scwx-qt/source/scwx/qt/gl/draw/placefile_icons.cpp

@@ -32,6 +32,9 @@ static constexpr std::size_t kIconBufferLength =
 static constexpr std::size_t kTextureBufferLength =
    kNumTriangles * kVerticesPerTriangle * kPointsPerTexCoord;
 
+// Threshold, start time, end time
+static constexpr std::size_t kIntegersPerVertex_ = 3;
+
 struct PlacefileIconInfo
 {
    PlacefileIconInfo(
@@ -78,6 +81,7 @@ public:
        uMapMatrixLocation_(GL_INVALID_INDEX),
        uMapScreenCoordLocation_(GL_INVALID_INDEX),
        uMapDistanceLocation_(GL_INVALID_INDEX),
+       uSelectedTimeLocation_(GL_INVALID_INDEX),
        vao_ {GL_INVALID_INDEX},
        vbo_ {GL_INVALID_INDEX},
        numVertices_ {0}
@@ -111,9 +115,9 @@ public:
       newValidIconList_ {};
 
    std::vector<float> currentIconBuffer_ {};
-   std::vector<GLint> currentThresholdBuffer_ {};
+   std::vector<GLint> currentIntegerBuffer_ {};
    std::vector<float> newIconBuffer_ {};
-   std::vector<GLint> newThresholdBuffer_ {};
+   std::vector<GLint> newIntegerBuffer_ {};
 
    std::vector<float> textureBuffer_ {};
 
@@ -125,6 +129,7 @@ public:
    GLint                          uMapMatrixLocation_;
    GLint                          uMapScreenCoordLocation_;
    GLint                          uMapDistanceLocation_;
+   GLint                          uSelectedTimeLocation_;
 
    GLuint                vao_;
    std::array<GLuint, 3> vbo_;
@@ -167,6 +172,8 @@ void PlacefileIcons::Initialize()
       p->shaderProgram_->GetUniformLocation("uMapScreenCoord");
    p->uMapDistanceLocation_ =
       p->shaderProgram_->GetUniformLocation("uMapDistance");
+   p->uSelectedTimeLocation_ =
+      p->shaderProgram_->GetUniformLocation("uSelectedTime");
 
    gl.glGenVertexArrays(1, &p->vao_);
    gl.glGenBuffers(static_cast<GLsizei>(p->vbo_.size()), p->vbo_.data());
@@ -234,6 +241,14 @@ void PlacefileIcons::Initialize()
                              static_cast<void*>(0));
    gl.glEnableVertexAttribArray(5);
 
+   // aTimeRange
+   gl.glVertexAttribIPointer(6, //
+                             2,
+                             GL_INT,
+                             kIntegersPerVertex_ * sizeof(GLint),
+                             reinterpret_cast<void*>(1 * sizeof(GLint)));
+   gl.glEnableVertexAttribArray(6);
+
    p->dirty_ = true;
 }
 
@@ -268,6 +283,17 @@ void PlacefileIcons::Render(
          gl.glUniform1f(p->uMapDistanceLocation_, 0.0f);
       }
 
+      // Selected time
+      std::chrono::system_clock::time_point selectedTime =
+         (p->selectedTime_ == std::chrono::system_clock::time_point {}) ?
+            std::chrono::system_clock::now() :
+            p->selectedTime_;
+      gl.glUniform1i(
+         p->uSelectedTimeLocation_,
+         static_cast<GLint>(std::chrono::duration_cast<std::chrono::minutes>(
+                               selectedTime.time_since_epoch())
+                               .count()));
+
       // Interpolate texture coordinates
       gl.glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
       gl.glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
@@ -290,7 +316,7 @@ void PlacefileIcons::Deinitialize()
    p->currentIconFiles_.clear();
    p->currentHoverIcons_.clear();
    p->currentIconBuffer_.clear();
-   p->currentThresholdBuffer_.clear();
+   p->currentIntegerBuffer_.clear();
    p->textureBuffer_.clear();
 }
 
@@ -332,7 +358,7 @@ void PlacefileIcons::StartIcons()
    p->newValidIconList_.clear();
    p->newIconFiles_.clear();
    p->newIconBuffer_.clear();
-   p->newThresholdBuffer_.clear();
+   p->newIntegerBuffer_.clear();
    p->newHoverIcons_.clear();
 }
 
@@ -376,7 +402,7 @@ void PlacefileIcons::FinishIcons()
    p->currentIconList_.swap(p->newValidIconList_);
    p->currentIconFiles_.swap(p->newIconFiles_);
    p->currentIconBuffer_.swap(p->newIconBuffer_);
-   p->currentThresholdBuffer_.swap(p->newThresholdBuffer_);
+   p->currentIntegerBuffer_.swap(p->newIntegerBuffer_);
    p->currentHoverIcons_.swap(p->newHoverIcons_);
 
    // Clear the new buffers
@@ -384,7 +410,7 @@ void PlacefileIcons::FinishIcons()
    p->newValidIconList_.clear();
    p->newIconFiles_.clear();
    p->newIconBuffer_.clear();
-   p->newThresholdBuffer_.clear();
+   p->newIntegerBuffer_.clear();
    p->newHoverIcons_.clear();
 
    // Mark the draw item dirty
@@ -395,8 +421,9 @@ void PlacefileIcons::Impl::UpdateBuffers()
 {
    newIconBuffer_.clear();
    newIconBuffer_.reserve(newIconList_.size() * kIconBufferLength);
-   newThresholdBuffer_.clear();
+   newIntegerBuffer_.clear();
-   newThresholdBuffer_.reserve(newIconList_.size() * kVerticesPerRectangle);
+   newIntegerBuffer_.reserve(newIconList_.size() * kVerticesPerRectangle *
+                             kIntegersPerVertex_);
 
    for (auto& di : newIconList_)
    {
@@ -425,6 +452,16 @@ void PlacefileIcons::Impl::UpdateBuffers()
       units::length::nautical_miles<double> threshold = di->threshold_;
       GLint thresholdValue = static_cast<GLint>(std::round(threshold.value()));
 
+      // Start and end time
+      GLint startTime =
+         static_cast<GLint>(std::chrono::duration_cast<std::chrono::minutes>(
+                               di->startTime_.time_since_epoch())
+                               .count());
+      GLint endTime =
+         static_cast<GLint>(std::chrono::duration_cast<std::chrono::minutes>(
+                               di->endTime_.time_since_epoch())
+                               .count());
+
       // Latitude and longitude coordinates in degrees
       const float lat = static_cast<float>(di->latitude_);
       const float lon = static_cast<float>(di->longitude_);
@@ -467,13 +504,25 @@ void PlacefileIcons::Impl::UpdateBuffers()
                                lat, lon, rx, ty, mc0, mc1, mc2, mc3, a, // TR
                                lat, lon, lx, ty, mc0, mc1, mc2, mc3, a  // TL
                             });
-      newThresholdBuffer_.insert(newThresholdBuffer_.end(),
+      newIntegerBuffer_.insert(newIntegerBuffer_.end(),
-                                 {thresholdValue, //
+                               {thresholdValue,
+                                startTime,
+                                endTime,
                                 thresholdValue,
+                                startTime,
+                                endTime,
                                 thresholdValue,
+                                startTime,
+                                endTime,
                                 thresholdValue,
+                                startTime,
+                                endTime,
                                 thresholdValue,
-                                  thresholdValue});
+                                startTime,
+                                endTime,
+                                thresholdValue,
+                                startTime,
+                                endTime});
 
       if (!di->hoverText_.empty())
       {
@@ -622,8 +671,8 @@ void PlacefileIcons::Impl::Update(bool textureAtlasChanged)
       // Buffer threshold data
       gl.glBindBuffer(GL_ARRAY_BUFFER, vbo_[2]);
       gl.glBufferData(GL_ARRAY_BUFFER,
-                      sizeof(GLint) * currentThresholdBuffer_.size(),
+                      sizeof(GLint) * currentIntegerBuffer_.size(),
-                      currentThresholdBuffer_.data(),
+                      currentIntegerBuffer_.data(),
                       GL_DYNAMIC_DRAW);
 
       numVertices_ = static_cast<GLsizei>(currentIconBuffer_.size() /
@@ -656,14 +705,20 @@ bool PlacefileIcons::RunMousePicking(
       (p->thresholded_) ? util::maplibre::GetMapDistance(params) :
                           units::length::meters<double> {0.0};
 
+   // If no time has been selected, use the current time
+   std::chrono::system_clock::time_point selectedTime =
+      (p->selectedTime_ == std::chrono::system_clock::time_point {}) ?
+         std::chrono::system_clock::now() :
+         p->selectedTime_;
+
    // For each pickable icon
    auto it = std::find_if(
       std::execution::par_unseq,
       p->currentHoverIcons_.crbegin(),
       p->currentHoverIcons_.crend(),
-      [&mapDistance, &mapMatrix, &mousePos](const auto& icon)
+      [&mapDistance, &selectedTime, &mapMatrix, &mousePos](const auto& icon)
       {
-         if (
+         if ((
                 // Placefile is thresholded
                 mapDistance > units::length::meters<double> {0.0} &&
 
@@ -673,7 +728,18 @@ bool PlacefileIcons::RunMousePicking(
                       .value())) < 999 &&
 
                 // Map distance is beyond the threshold
-            icon.di_->threshold_ < mapDistance)
+                icon.di_->threshold_ < mapDistance) ||
+
+             (
+                // Line has a start time
+                icon.di_->startTime_ !=
+                   std::chrono::system_clock::time_point {} &&
+
+                // The time range has not yet started
+                (selectedTime < icon.di_->startTime_ ||
+
+                 // The time range has ended
+                 icon.di_->endTime_ <= selectedTime)))
          {
             // Icon is not pickable
             return false;