Create shader programs through map context in order to cache programs through re-initialization

scwx-qt/scwx-qt.cmake

@@ -73,6 +73,7 @@ set(SRC_MAP source/scwx/qt/map/color_table_layer.cpp
             source/scwx/qt/map/draw_layer.cpp
             source/scwx/qt/map/generic_layer.cpp
             source/scwx/qt/map/layer_wrapper.cpp
+            source/scwx/qt/map/map_context.cpp
             source/scwx/qt/map/map_widget.cpp
             source/scwx/qt/map/overlay_layer.cpp
             source/scwx/qt/map/radar_product_layer.cpp

scwx-qt/source/scwx/qt/gl/text_shader.cpp

@@ -1,4 +1,5 @@
 #include <scwx/qt/gl/text_shader.hpp>
+#include <scwx/qt/gl/shader_program.hpp>
 #include <scwx/util/logger.hpp>
 
 #pragma warning(push, 0)
@@ -18,41 +19,46 @@ static const auto        logger_    = scwx::util::Logger::Create(logPrefix_);
 class TextShaderImpl
 {
 public:
-   explicit TextShaderImpl(OpenGLFunctions& gl) :
+   explicit TextShaderImpl(std::shared_ptr<map::MapContext> context) :
-       gl_ {gl}, projectionLocation_(GL_INVALID_INDEX)
+       context_ {context},
+       shaderProgram_ {nullptr},
+       projectionLocation_(GL_INVALID_INDEX)
    {
    }
 
    ~TextShaderImpl() {}
 
-   OpenGLFunctions& gl_;
+   std::shared_ptr<map::MapContext> context_;
+   std::shared_ptr<ShaderProgram>   shaderProgram_;
 
    GLint projectionLocation_;
 };
 
-TextShader::TextShader(OpenGLFunctions& gl) :
+TextShader::TextShader(std::shared_ptr<map::MapContext> context) :
-    ShaderProgram(gl), p(std::make_unique<TextShaderImpl>(gl))
+    p(std::make_unique<TextShaderImpl>(context))
 {
 }
 TextShader::~TextShader() = default;
 
-TextShader::TextShader(TextShader&&) noexcept = default;
+TextShader::TextShader(TextShader&&) noexcept            = default;
 TextShader& TextShader::operator=(TextShader&&) noexcept = default;
 
 bool TextShader::Initialize()
 {
-   OpenGLFunctions& gl = p->gl_;
+   OpenGLFunctions& gl = p->context_->gl();
 
    // Load and configure shader
-   bool success = Load(":/gl/text.vert", ":/gl/text.frag");
+   p->shaderProgram_ =
+      p->context_->GetShaderProgram(":/gl/text.vert", ":/gl/text.frag");
 
-   p->projectionLocation_ = gl.glGetUniformLocation(id(), "projection");
+   p->projectionLocation_ =
+      gl.glGetUniformLocation(p->shaderProgram_->id(), "projection");
    if (p->projectionLocation_ == -1)
    {
       logger_->warn("Could not find projection");
    }
 
-   return success;
+   return true;
 }
 
 void TextShader::RenderText(const std::string&               text,
@@ -65,9 +71,9 @@ void TextShader::RenderText(const std::string&               text,
                             GLuint                           textureId,
                             TextAlign                        align)
 {
-   OpenGLFunctions& gl = p->gl_;
+   OpenGLFunctions& gl = p->context_->gl();
 
-   Use();
+   p->shaderProgram_->Use();
 
    gl.glEnable(GL_BLEND);
    gl.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -103,7 +109,7 @@ void TextShader::RenderText(const std::string&               text,
 
 void TextShader::SetProjection(const glm::mat4& projection)
 {
-   p->gl_.glUniformMatrix4fv(
+   p->context_->gl().glUniformMatrix4fv(
       p->projectionLocation_, 1, GL_FALSE, glm::value_ptr(projection));
 }
 

scwx-qt/source/scwx/qt/gl/text_shader.hpp

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <scwx/qt/gl/shader_program.hpp>
+#include <scwx/qt/map/map_context.hpp>
 #include <scwx/qt/util/font.hpp>
 
 #include <memory>
@@ -24,13 +24,13 @@ enum class TextAlign
 
 class TextShaderImpl;
 
-class TextShader : public ShaderProgram
+class TextShader
 {
 public:
-   explicit TextShader(OpenGLFunctions& gl);
+   explicit TextShader(std::shared_ptr<map::MapContext> context);
    ~TextShader();
 
-   TextShader(const TextShader&) = delete;
+   TextShader(const TextShader&)            = delete;
    TextShader& operator=(const TextShader&) = delete;
 
    TextShader(TextShader&&) noexcept;

scwx-qt/source/scwx/qt/map/color_table_layer.cpp

@@ -21,7 +21,7 @@ class ColorTableLayerImpl
 {
 public:
    explicit ColorTableLayerImpl(std::shared_ptr<MapContext> context) :
-       shaderProgram_(context->gl_),
+       shaderProgram_(nullptr),
        uMVPMatrixLocation_(GL_INVALID_INDEX),
        vbo_ {GL_INVALID_INDEX},
        vao_ {GL_INVALID_INDEX},
@@ -31,7 +31,8 @@ public:
    }
    ~ColorTableLayerImpl() = default;
 
-   gl::ShaderProgram     shaderProgram_;
+   std::shared_ptr<gl::ShaderProgram> shaderProgram_;
+
    GLint                 uMVPMatrixLocation_;
    std::array<GLuint, 2> vbo_;
    GLuint                vao_;
@@ -52,13 +53,14 @@ void ColorTableLayer::Initialize()
 {
    logger_->debug("Initialize()");
 
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl = context()->gl();
 
    // Load and configure overlay shader
-   p->shaderProgram_.Load(":/gl/texture1d.vert", ":/gl/texture1d.frag");
+   p->shaderProgram_ =
+      context()->GetShaderProgram(":/gl/texture1d.vert", ":/gl/texture1d.frag");
 
    p->uMVPMatrixLocation_ =
-      gl.glGetUniformLocation(p->shaderProgram_.id(), "uMVPMatrix");
+      gl.glGetUniformLocation(p->shaderProgram_->id(), "uMVPMatrix");
    if (p->uMVPMatrixLocation_ == -1)
    {
       logger_->warn("Could not find uMVPMatrix");
@@ -66,7 +68,7 @@ void ColorTableLayer::Initialize()
 
    gl.glGenTextures(1, &p->texture_);
 
-   p->shaderProgram_.Use();
+   p->shaderProgram_->Use();
 
    // Generate a vertex array object
    gl.glGenVertexArrays(1, &p->vao_);
@@ -99,7 +101,7 @@ void ColorTableLayer::Initialize()
    gl.glVertexAttribPointer(1, 1, GL_FLOAT, GL_FALSE, 0, static_cast<void*>(0));
    gl.glEnableVertexAttribArray(1);
 
-   connect(context()->radarProductView_.get(),
+   connect(context()->radar_product_view().get(),
            &view::RadarProductView::ColorTableUpdated,
            this,
            [=]() { p->colorTableNeedsUpdate_ = true; });
@@ -107,10 +109,11 @@ void ColorTableLayer::Initialize()
 
 void ColorTableLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
 {
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl               = context()->gl();
+   auto                 radarProductView = context()->radar_product_view();
 
-   if (context()->radarProductView_ == nullptr ||
+   if (context()->radar_product_view() == nullptr ||
-       !context()->radarProductView_->IsInitialized())
+       !context()->radar_product_view()->IsInitialized())
    {
       // Defer rendering until view is initialized
       return;
@@ -121,14 +124,14 @@ void ColorTableLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
                                      0.0f,
                                      static_cast<float>(params.height));
 
-   p->shaderProgram_.Use();
+   p->shaderProgram_->Use();
 
    gl.glUniformMatrix4fv(
       p->uMVPMatrixLocation_, 1, GL_FALSE, glm::value_ptr(projection));
 
    if (p->colorTableNeedsUpdate_)
    {
-      p->colorTable_ = context()->radarProductView_->color_table();
+      p->colorTable_ = radarProductView->color_table();
 
       gl.glActiveTexture(GL_TEXTURE0);
       gl.glBindTexture(GL_TEXTURE_1D, p->texture_);
@@ -145,9 +148,8 @@ void ColorTableLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
       gl.glGenerateMipmap(GL_TEXTURE_1D);
    }
 
-   if (p->colorTable_.size() > 0 &&
+   if (p->colorTable_.size() > 0 && radarProductView->sweep_time() !=
-       context()->radarProductView_->sweep_time() !=
+                                       std::chrono::system_clock::time_point())
-          std::chrono::system_clock::time_point())
    {
       // Color table panel vertices
       const float vertexLX       = 0.0f;
@@ -176,7 +178,7 @@ void ColorTableLayer::Deinitialize()
 {
    logger_->debug("Deinitialize()");
 
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl = context()->gl();
 
    gl.glDeleteVertexArrays(1, &p->vao_);
    gl.glDeleteBuffers(2, p->vbo_.data());

scwx-qt/source/scwx/qt/map/draw_layer.cpp

@@ -22,14 +22,15 @@ class DrawLayerImpl
 {
 public:
    explicit DrawLayerImpl(std::shared_ptr<MapContext> context) :
-       shaderProgram_ {context->gl_}, uMVPMatrixLocation_(GL_INVALID_INDEX)
+       shaderProgram_ {nullptr}, uMVPMatrixLocation_(GL_INVALID_INDEX)
    {
    }
 
    ~DrawLayerImpl() {}
 
-   gl::ShaderProgram shaderProgram_;
+   std::shared_ptr<gl::ShaderProgram> shaderProgram_;
-   GLint             uMVPMatrixLocation_;
+
+   GLint uMVPMatrixLocation_;
 
    std::vector<std::shared_ptr<gl::draw::DrawItem>> drawList_;
 };
@@ -42,20 +43,21 @@ DrawLayer::~DrawLayer() = default;
 
 void DrawLayer::Initialize()
 {
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl = context()->gl();
 
-   p->shaderProgram_.Load(":/gl/color.vert", ":/gl/color.frag");
+   p->shaderProgram_ =
+      context()->GetShaderProgram(":/gl/color.vert", ":/gl/color.frag");
 
    p->uMVPMatrixLocation_ =
-      gl.glGetUniformLocation(p->shaderProgram_.id(), "uMVPMatrix");
+      gl.glGetUniformLocation(p->shaderProgram_->id(), "uMVPMatrix");
    if (p->uMVPMatrixLocation_ == -1)
    {
       logger_->warn("Could not find uMVPMatrix");
    }
 
-   p->shaderProgram_.Use();
+   p->shaderProgram_->Use();
 
-   for (auto item : p->drawList_)
+   for (auto& item : p->drawList_)
    {
       item->Initialize();
    }
@@ -63,9 +65,9 @@ void DrawLayer::Initialize()
 
 void DrawLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
 {
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl = context()->gl();
 
-   p->shaderProgram_.Use();
+   p->shaderProgram_->Use();
 
    glm::mat4 projection = glm::ortho(0.0f,
                                      static_cast<float>(params.width),
@@ -75,7 +77,7 @@ void DrawLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
    gl.glUniformMatrix4fv(
       p->uMVPMatrixLocation_, 1, GL_FALSE, glm::value_ptr(projection));
 
-   for (auto item : p->drawList_)
+   for (auto& item : p->drawList_)
    {
       item->Render();
    }
@@ -83,7 +85,7 @@ void DrawLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
 
 void DrawLayer::Deinitialize()
 {
-   for (auto item : p->drawList_)
+   for (auto& item : p->drawList_)
    {
       item->Deinitialize();
    }

scwx-qt/source/scwx/qt/map/map_context.cpp

@@ -0,0 +1,131 @@
+#include <scwx/qt/map/map_context.hpp>
+#include <scwx/util/hash.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace map
+{
+
+class MapContext::Impl
+{
+public:
+   explicit Impl(std::shared_ptr<view::RadarProductView> radarProductView) :
+       gl_ {},
+       settings_ {},
+       radarProductView_ {radarProductView},
+       radarProductGroup_ {common::RadarProductGroup::Unknown},
+       radarProduct_ {"???"},
+       radarProductCode_ {0},
+       shaderProgramMap_ {},
+       shaderProgramMutex_ {}
+   {
+   }
+
+   ~Impl() {}
+
+   gl::OpenGLFunctions                     gl_;
+   MapSettings                             settings_;
+   std::shared_ptr<view::RadarProductView> radarProductView_;
+   common::RadarProductGroup               radarProductGroup_;
+   std::string                             radarProduct_;
+   int16_t                                 radarProductCode_;
+
+   std::unordered_map<std::pair<std::string, std::string>,
+                      std::shared_ptr<gl::ShaderProgram>,
+                      util::hash<std::pair<std::string, std::string>>>
+              shaderProgramMap_;
+   std::mutex shaderProgramMutex_;
+};
+
+MapContext::MapContext(
+   std::shared_ptr<view::RadarProductView> radarProductView) :
+    p(std::make_unique<Impl>(radarProductView))
+{
+}
+MapContext::~MapContext() = default;
+
+MapContext::MapContext(MapContext&&) noexcept            = default;
+MapContext& MapContext::operator=(MapContext&&) noexcept = default;
+
+gl::OpenGLFunctions& MapContext::gl()
+{
+   return p->gl_;
+}
+
+MapSettings& MapContext::settings()
+{
+   return p->settings_;
+}
+
+std::shared_ptr<view::RadarProductView> MapContext::radar_product_view() const
+{
+   return p->radarProductView_;
+}
+
+common::RadarProductGroup MapContext::radar_product_group() const
+{
+   return p->radarProductGroup_;
+}
+
+std::string MapContext::radar_product() const
+{
+   return p->radarProduct_;
+}
+
+int16_t MapContext::radar_product_code() const
+{
+   return p->radarProductCode_;
+}
+
+void MapContext::set_radar_product_view(
+   std::shared_ptr<view::RadarProductView> radarProductView)
+{
+   p->radarProductView_ = radarProductView;
+}
+
+void MapContext::set_radar_product_group(
+   common::RadarProductGroup radarProductGroup)
+{
+   p->radarProductGroup_ = radarProductGroup;
+}
+
+void MapContext::set_radar_product(const std::string& radarProduct)
+{
+   p->radarProduct_ = radarProduct;
+}
+
+void MapContext::set_radar_product_code(int16_t radarProductCode)
+{
+   p->radarProductCode_ = radarProductCode;
+}
+
+std::shared_ptr<gl::ShaderProgram>
+MapContext::GetShaderProgram(const std::string& vertexPath,
+                             const std::string& fragmentPath)
+{
+   const std::pair<std::string, std::string> key {vertexPath, fragmentPath};
+   std::shared_ptr<gl::ShaderProgram>        shaderProgram;
+
+   std::unique_lock lock(p->shaderProgramMutex_);
+
+   auto it = p->shaderProgramMap_.find(key);
+
+   if (it == p->shaderProgramMap_.end())
+   {
+      shaderProgram = std::make_shared<gl::ShaderProgram>(p->gl_);
+      shaderProgram->Load(vertexPath, fragmentPath);
+      p->shaderProgramMap_[key] = shaderProgram;
+   }
+   else
+   {
+      shaderProgram = it->second;
+   }
+
+   return shaderProgram;
+}
+
+} // namespace map
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/map/map_context.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <scwx/qt/gl/gl.hpp>
+#include <scwx/qt/gl/shader_program.hpp>
 #include <scwx/qt/map/map_settings.hpp>
 #include <scwx/qt/view/radar_product_view.hpp>
 
@@ -11,32 +12,40 @@ namespace qt
 namespace map
 {
 
-struct MapContext
+class MapContext
 {
+public:
    explicit MapContext(
-      std::shared_ptr<view::RadarProductView> radarProductView = nullptr) :
+      std::shared_ptr<view::RadarProductView> radarProductView = nullptr);
-       gl_ {},
+   ~MapContext();
-       settings_ {},
-       radarProductView_ {radarProductView},
-       radarProductGroup_ {common::RadarProductGroup::Unknown},
-       radarProduct_ {"???"},
-       radarProductCode_ {0}
-   {
-   }
-   ~MapContext() = default;
 
-   MapContext(const MapContext&) = delete;
+   MapContext(const MapContext&)            = delete;
    MapContext& operator=(const MapContext&) = delete;
 
-   MapContext(MapContext&&) noexcept = default;
+   MapContext(MapContext&&) noexcept;
-   MapContext& operator=(MapContext&&) noexcept = default;
+   MapContext& operator=(MapContext&&) noexcept;
 
-   gl::OpenGLFunctions                     gl_;
+   gl::OpenGLFunctions&                    gl();
-   MapSettings                             settings_;
+   MapSettings&                            settings();
-   std::shared_ptr<view::RadarProductView> radarProductView_;
+   std::shared_ptr<view::RadarProductView> radar_product_view() const;
-   common::RadarProductGroup               radarProductGroup_;
+   common::RadarProductGroup               radar_product_group() const;
-   std::string                             radarProduct_;
+   std::string                             radar_product() const;
-   int16_t                                 radarProductCode_;
+   int16_t                                 radar_product_code() const;
+
+   void set_radar_product_view(
+      std::shared_ptr<view::RadarProductView> radarProductView);
+   void set_radar_product_group(common::RadarProductGroup radarProductGroup);
+   void set_radar_product(const std::string& radarProduct);
+   void set_radar_product_code(int16_t radarProductCode);
+
+   std::shared_ptr<gl::ShaderProgram>
+   GetShaderProgram(const std::string& vertexPath,
+                    const std::string& fragmentPath);
+
+private:
+   class Impl;
+
+   std::unique_ptr<Impl> p;
 };
 
 } // namespace map

scwx-qt/source/scwx/qt/map/map_widget.cpp

@@ -153,9 +153,11 @@ common::Level3ProductCategoryMap MapWidget::GetAvailableLevel3Categories()
 
 float MapWidget::GetElevation() const
 {
-   if (p->context_->radarProductView_ != nullptr)
+   auto radarProductView = p->context_->radar_product_view();
+
+   if (radarProductView != nullptr)
    {
-      return p->context_->radarProductView_->elevation();
+      return radarProductView->elevation();
    }
    else
    {
@@ -165,9 +167,11 @@ float MapWidget::GetElevation() const
 
 std::vector<float> MapWidget::GetElevationCuts() const
 {
-   if (p->context_->radarProductView_ != nullptr)
+   auto radarProductView = p->context_->radar_product_view();
+
+   if (radarProductView != nullptr)
    {
-      return p->context_->radarProductView_->GetElevationCuts();
+      return radarProductView->GetElevationCuts();
    }
    else
    {
@@ -182,10 +186,12 @@ MapWidgetImpl::GetLevel2ProductOrDefault(const std::string& productName) const
 
    if (level2Product == common::Level2Product::Unknown)
    {
-      if (context_->radarProductView_ != nullptr)
+      auto radarProductView = context_->radar_product_view();
+
+      if (radarProductView != nullptr)
       {
-         level2Product = common::GetLevel2Product(
+         level2Product =
-            context_->radarProductView_->GetRadarProductName());
+            common::GetLevel2Product(radarProductView->GetRadarProductName());
       }
    }
 
@@ -218,9 +224,11 @@ std::vector<std::string> MapWidget::GetLevel3Products()
 
 common::RadarProductGroup MapWidget::GetRadarProductGroup() const
 {
-   if (p->context_->radarProductView_ != nullptr)
+   auto radarProductView = p->context_->radar_product_view();
+
+   if (radarProductView != nullptr)
    {
-      return p->context_->radarProductView_->GetRadarProductGroup();
+      return radarProductView->GetRadarProductGroup();
    }
    else
    {
@@ -230,10 +238,11 @@ common::RadarProductGroup MapWidget::GetRadarProductGroup() const
 
 std::string MapWidget::GetRadarProductName() const
 {
+   auto radarProductView = p->context_->radar_product_view();
 
-   if (p->context_->radarProductView_ != nullptr)
+   if (radarProductView != nullptr)
    {
-      return p->context_->radarProductView_->GetRadarProductName();
+      return radarProductView->GetRadarProductName();
    }
    else
    {
@@ -255,9 +264,11 @@ std::shared_ptr<config::RadarSite> MapWidget::GetRadarSite() const
 
 uint16_t MapWidget::GetVcp() const
 {
-   if (p->context_->radarProductView_ != nullptr)
+   auto radarProductView = p->context_->radar_product_view();
+
+   if (radarProductView != nullptr)
    {
-      return p->context_->radarProductView_->vcp();
+      return radarProductView->vcp();
    }
    else
    {
@@ -267,10 +278,12 @@ uint16_t MapWidget::GetVcp() const
 
 void MapWidget::SelectElevation(float elevation)
 {
-   if (p->context_->radarProductView_ != nullptr)
+   auto radarProductView = p->context_->radar_product_view();
+
+   if (radarProductView != nullptr)
    {
-      p->context_->radarProductView_->SelectElevation(elevation);
+      radarProductView->SelectElevation(elevation);
-      p->context_->radarProductView_->Update();
+      radarProductView->Update();
    }
 }
 
@@ -280,8 +293,7 @@ void MapWidget::SelectRadarProduct(common::RadarProductGroup group,
 {
    bool radarProductViewCreated = false;
 
-   std::shared_ptr<view::RadarProductView>& radarProductView =
+   auto radarProductView = p->context_->radar_product_view();
-      p->context_->radarProductView_;
 
    std::string productName {product};
 
@@ -304,12 +316,13 @@ void MapWidget::SelectRadarProduct(common::RadarProductGroup group,
        (radarProductView->GetRadarProductGroup() ==
            common::RadarProductGroup::Level2 &&
         radarProductView->GetRadarProductName() != productName) ||
-       p->context_->radarProductCode_ != productCode)
+       p->context_->radar_product_code() != productCode)
    {
       p->RadarProductViewDisconnect();
 
       radarProductView = view::RadarProductViewFactory::Create(
          group, productName, productCode, p->radarProductManager_);
+      p->context_->set_radar_product_view(radarProductView);
 
       p->RadarProductViewConnect();
 
@@ -320,9 +333,9 @@ void MapWidget::SelectRadarProduct(common::RadarProductGroup group,
       radarProductView->SelectProduct(productName);
    }
 
-   p->context_->radarProductGroup_ = group;
+   p->context_->set_radar_product_group(group);
-   p->context_->radarProduct_      = productName;
+   p->context_->set_radar_product(productName);
-   p->context_->radarProductCode_  = productCode;
+   p->context_->set_radar_product_code(productCode);
 
    if (radarProductView != nullptr)
    {
@@ -372,7 +385,7 @@ void MapWidget::SelectRadarProduct(
 
 void MapWidget::SetActive(bool isActive)
 {
-   p->context_->settings_.isActive_ = isActive;
+   p->context_->settings().isActive_ = isActive;
    update();
 }
 
@@ -382,11 +395,13 @@ void MapWidget::SetAutoRefresh(bool enabled)
    {
       p->autoRefreshEnabled_ = enabled;
 
-      if (p->autoRefreshEnabled_ && p->context_->radarProductView_ != nullptr)
+      auto radarProductView = p->context_->radar_product_view();
+
+      if (p->autoRefreshEnabled_ && radarProductView != nullptr)
       {
          p->radarProductManager_->EnableRefresh(
-            p->context_->radarProductView_->GetRadarProductGroup(),
+            radarProductView->GetRadarProductGroup(),
-            p->context_->radarProductView_->GetRadarProductName(),
+            radarProductView->GetRadarProductName(),
             true);
       }
    }
@@ -430,7 +445,9 @@ void MapWidget::AddLayers()
    }
    p->layerList_.clear();
 
-   if (p->context_->radarProductView_ != nullptr)
+   auto radarProductView = p->context_->radar_product_view();
+
+   if (radarProductView != nullptr)
    {
       p->radarProductLayer_ = std::make_shared<RadarProductLayer>(p->context_);
       p->colorTableLayer_   = std::make_shared<ColorTableLayer>(p->context_);
@@ -453,7 +470,7 @@ void MapWidget::AddLayers()
 
       p->AddLayer("radar", p->radarProductLayer_, before);
       RadarRangeLayer::Add(p->map_,
-                           p->context_->radarProductView_->range(),
+                           radarProductView->range(),
                            {radarSite->latitude(), radarSite->longitude()});
       p->AddLayer("colorTable", p->colorTableLayer_);
    }
@@ -572,7 +589,7 @@ void MapWidget::initializeGL()
    logger_->debug("initializeGL()");
 
    makeCurrent();
-   p->context_->gl_.initializeOpenGLFunctions();
+   p->context_->gl().initializeOpenGLFunctions();
 
    p->map_.reset(new QMapboxGL(nullptr, p->settings_, size(), pixelRatio()));
    connect(p->map_.get(),
@@ -637,9 +654,10 @@ void MapWidgetImpl::RadarProductManagerConnect()
              const std::string&                    product,
              std::chrono::system_clock::time_point latestTime)
          {
-            if (autoRefreshEnabled_ && context_->radarProductGroup_ == group &&
+            if (autoRefreshEnabled_ &&
+                context_->radar_product_group() == group &&
                 (group == common::RadarProductGroup::Level2 ||
-                 context_->radarProduct_ == product))
+                 context_->radar_product() == product))
             {
                // Create file request
                std::shared_ptr<request::NexradFileRequest> request =
@@ -698,16 +716,18 @@ void MapWidgetImpl::InitializeNewRadarProductView(
    util::async(
       [=]()
       {
+         auto radarProductView = context_->radar_product_view();
+
          std::string colorTableFile =
             manager::SettingsManager::palette_settings()->palette(colorPalette);
          if (!colorTableFile.empty())
          {
             std::shared_ptr<common::ColorTable> colorTable =
                common::ColorTable::Load(colorTableFile);
-            context_->radarProductView_->LoadColorTable(colorTable);
+            radarProductView->LoadColorTable(colorTable);
          }
 
-         context_->radarProductView_->Initialize();
+         radarProductView->Initialize();
       });
 
    if (map_ != nullptr)
@@ -718,26 +738,28 @@ void MapWidgetImpl::InitializeNewRadarProductView(
 
 void MapWidgetImpl::RadarProductViewConnect()
 {
-   if (context_->radarProductView_ != nullptr)
+   auto radarProductView = context_->radar_product_view();
+
+   if (radarProductView != nullptr)
    {
       connect(
-         context_->radarProductView_.get(),
+         radarProductView.get(),
          &view::RadarProductView::ColorTableUpdated,
          this,
          [&]() { widget_->update(); },
          Qt::QueuedConnection);
       connect(
-         context_->radarProductView_.get(),
+         radarProductView.get(),
          &view::RadarProductView::SweepComputed,
          this,
-         [&]()
+         [=]()
          {
             std::shared_ptr<config::RadarSite> radarSite =
                radarProductManager_->radar_site();
 
             RadarRangeLayer::Update(
                map_,
-               context_->radarProductView_->range(),
+               radarProductView->range(),
                {radarSite->latitude(), radarSite->longitude()});
             widget_->update();
             emit widget_->RadarSweepUpdated();
@@ -748,13 +770,15 @@ void MapWidgetImpl::RadarProductViewConnect()
 
 void MapWidgetImpl::RadarProductViewDisconnect()
 {
-   if (context_->radarProductView_ != nullptr)
+   auto radarProductView = context_->radar_product_view();
+
+   if (radarProductView != nullptr)
    {
-      disconnect(context_->radarProductView_.get(),
+      disconnect(radarProductView.get(),
                  &view::RadarProductView::ColorTableUpdated,
                  this,
                  nullptr);
-      disconnect(context_->radarProductView_.get(),
+      disconnect(radarProductView.get(),
                  &view::RadarProductView::SweepComputed,
                  this,
                  nullptr);

scwx-qt/source/scwx/qt/map/overlay_layer.cpp

@@ -34,12 +34,12 @@ class OverlayLayerImpl
 {
 public:
    explicit OverlayLayerImpl(std::shared_ptr<MapContext> context) :
-       textShader_(context->gl_),
+       textShader_(context),
        font_(util::Font::Create(":/res/fonts/din1451alt.ttf")),
        texture_ {GL_INVALID_INDEX},
-       activeBoxOuter_ {std::make_shared<gl::draw::Rectangle>(context->gl_)},
+       activeBoxOuter_ {std::make_shared<gl::draw::Rectangle>(context->gl())},
-       activeBoxInner_ {std::make_shared<gl::draw::Rectangle>(context->gl_)},
+       activeBoxInner_ {std::make_shared<gl::draw::Rectangle>(context->gl())},
-       timeBox_ {std::make_shared<gl::draw::Rectangle>(context->gl_)},
+       timeBox_ {std::make_shared<gl::draw::Rectangle>(context->gl())},
        sweepTimeString_ {},
        sweepTimeNeedsUpdate_ {true}
    {
@@ -81,7 +81,8 @@ void OverlayLayer::Initialize()
 
    DrawLayer::Initialize();
 
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl               = context()->gl();
+   auto                 radarProductView = context()->radar_product_view();
 
    p->textShader_.Initialize();
 
@@ -90,9 +91,9 @@ void OverlayLayer::Initialize()
       p->texture_ = p->font_->GenerateTexture(gl);
    }
 
-   if (context()->radarProductView_ != nullptr)
+   if (radarProductView != nullptr)
    {
-      connect(context()->radarProductView_.get(),
+      connect(radarProductView.get(),
               &view::RadarProductView::SweepComputed,
               this,
               &OverlayLayer::UpdateSweepTimeNextFrame);
@@ -103,14 +104,14 @@ void OverlayLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
 {
    constexpr float fontSize = 16.0f;
 
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl               = context()->gl();
+   auto                 radarProductView = context()->radar_product_view();
+   auto&                settings         = context()->settings();
 
-   if (p->sweepTimeNeedsUpdate_ && context()->radarProductView_ != nullptr)
+   if (p->sweepTimeNeedsUpdate_ && radarProductView != nullptr)
    {
-      p->sweepTimeString_ =
+      p->sweepTimeString_ = scwx::util::TimeString(
-         scwx::util::TimeString(context()->radarProductView_->sweep_time(),
+         radarProductView->sweep_time(), std::chrono::current_zone(), false);
-                                std::chrono::current_zone(),
-                                false);
       p->sweepTimeNeedsUpdate_ = false;
    }
 
@@ -120,9 +121,9 @@ void OverlayLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
                                      static_cast<float>(params.height));
 
    // Active Box
-   p->activeBoxOuter_->SetVisible(context()->settings_.isActive_);
+   p->activeBoxOuter_->SetVisible(settings.isActive_);
-   p->activeBoxInner_->SetVisible(context()->settings_.isActive_);
+   p->activeBoxInner_->SetVisible(settings.isActive_);
-   if (context()->settings_.isActive_)
+   if (settings.isActive_)
    {
       p->activeBoxOuter_->SetSize(params.width, params.height);
       p->activeBoxInner_->SetSize(params.width - 2.0f, params.height - 2.0f);
@@ -164,15 +165,16 @@ void OverlayLayer::Deinitialize()
 
    DrawLayer::Deinitialize();
 
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl               = context()->gl();
+   auto                 radarProductView = context()->radar_product_view();
 
    gl.glDeleteTextures(1, &p->texture_);
 
    p->texture_ = GL_INVALID_INDEX;
 
-   if (context()->radarProductView_ != nullptr)
+   if (radarProductView != nullptr)
    {
-      disconnect(context()->radarProductView_.get(),
+      disconnect(radarProductView.get(),
                  &view::RadarProductView::SweepComputed,
                  this,
                  &OverlayLayer::UpdateSweepTimeNextFrame);

scwx-qt/source/scwx/qt/map/radar_product_layer.cpp

@@ -33,7 +33,7 @@ class RadarProductLayerImpl
 {
 public:
    explicit RadarProductLayerImpl(std::shared_ptr<MapContext> context) :
-       shaderProgram_(context->gl_),
+       shaderProgram_(nullptr),
        uMVPMatrixLocation_(GL_INVALID_INDEX),
        uMapScreenCoordLocation_(GL_INVALID_INDEX),
        uDataMomentOffsetLocation_(GL_INVALID_INDEX),
@@ -50,7 +50,8 @@ public:
    }
    ~RadarProductLayerImpl() = default;
 
-   gl::ShaderProgram     shaderProgram_;
+   std::shared_ptr<gl::ShaderProgram> shaderProgram_;
+
    GLint                 uMVPMatrixLocation_;
    GLint                 uMapScreenCoordLocation_;
    GLint                 uDataMomentOffsetLocation_;
@@ -78,47 +79,48 @@ void RadarProductLayer::Initialize()
 {
    logger_->debug("Initialize()");
 
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl = context()->gl();
 
    // Load and configure radar shader
-   p->shaderProgram_.Load(":/gl/radar.vert", ":/gl/radar.frag");
+   p->shaderProgram_ =
+      context()->GetShaderProgram(":/gl/radar.vert", ":/gl/radar.frag");
 
    p->uMVPMatrixLocation_ =
-      gl.glGetUniformLocation(p->shaderProgram_.id(), "uMVPMatrix");
+      gl.glGetUniformLocation(p->shaderProgram_->id(), "uMVPMatrix");
    if (p->uMVPMatrixLocation_ == -1)
    {
       logger_->warn("Could not find uMVPMatrix");
    }
 
    p->uMapScreenCoordLocation_ =
-      gl.glGetUniformLocation(p->shaderProgram_.id(), "uMapScreenCoord");
+      gl.glGetUniformLocation(p->shaderProgram_->id(), "uMapScreenCoord");
    if (p->uMapScreenCoordLocation_ == -1)
    {
       logger_->warn("Could not find uMapScreenCoord");
    }
 
    p->uDataMomentOffsetLocation_ =
-      gl.glGetUniformLocation(p->shaderProgram_.id(), "uDataMomentOffset");
+      gl.glGetUniformLocation(p->shaderProgram_->id(), "uDataMomentOffset");
    if (p->uDataMomentOffsetLocation_ == -1)
    {
       logger_->warn("Could not find uDataMomentOffset");
    }
 
    p->uDataMomentScaleLocation_ =
-      gl.glGetUniformLocation(p->shaderProgram_.id(), "uDataMomentScale");
+      gl.glGetUniformLocation(p->shaderProgram_->id(), "uDataMomentScale");
    if (p->uDataMomentScaleLocation_ == -1)
    {
       logger_->warn("Could not find uDataMomentScale");
    }
 
    p->uCFPEnabledLocation_ =
-      gl.glGetUniformLocation(p->shaderProgram_.id(), "uCFPEnabled");
+      gl.glGetUniformLocation(p->shaderProgram_->id(), "uCFPEnabled");
    if (p->uCFPEnabledLocation_ == -1)
    {
       logger_->warn("Could not find uCFPEnabled");
    }
 
-   p->shaderProgram_.Use();
+   p->shaderProgram_->Use();
 
    // Generate a vertex array object
    gl.glGenVertexArrays(1, &p->vao_);
@@ -138,11 +140,12 @@ void RadarProductLayer::Initialize()
    gl.glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    gl.glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 
-   connect(context()->radarProductView_.get(),
+   auto radarProductView = context()->radar_product_view();
+   connect(radarProductView.get(),
            &view::RadarProductView::ColorTableUpdated,
            this,
            [=]() { p->colorTableNeedsUpdate_ = true; });
-   connect(context()->radarProductView_.get(),
+   connect(radarProductView.get(),
            &view::RadarProductView::SweepComputed,
            this,
            [=]() { p->sweepNeedsUpdate_ = true; });
@@ -152,12 +155,12 @@ void RadarProductLayer::UpdateSweep()
 {
    logger_->debug("UpdateSweep()");
 
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl = context()->gl();
 
    boost::timer::cpu_timer timer;
 
    std::shared_ptr<view::RadarProductView> radarProductView =
-      context()->radarProductView_;
+      context()->radar_product_view();
 
    std::unique_lock sweepLock(radarProductView->sweep_mutex(),
                               std::try_to_lock);
@@ -253,9 +256,9 @@ void RadarProductLayer::UpdateSweep()
 void RadarProductLayer::Render(
    const QMapbox::CustomLayerRenderParameters& params)
 {
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl = context()->gl();
 
-   p->shaderProgram_.Use();
+   p->shaderProgram_->Use();
 
    if (p->colorTableNeedsUpdate_)
    {
@@ -300,7 +303,7 @@ void RadarProductLayer::Deinitialize()
 {
    logger_->debug("Deinitialize()");
 
-   gl::OpenGLFunctions& gl = context()->gl_;
+   gl::OpenGLFunctions& gl = context()->gl();
 
    gl.glDeleteVertexArrays(1, &p->vao_);
    gl.glDeleteBuffers(3, p->vbo_.data());
@@ -321,9 +324,9 @@ void RadarProductLayer::UpdateColorTable()
 
    p->colorTableNeedsUpdate_ = false;
 
-   gl::OpenGLFunctions&                    gl = context()->gl_;
+   gl::OpenGLFunctions&                    gl = context()->gl();
    std::shared_ptr<view::RadarProductView> radarProductView =
-      context()->radarProductView_;
+      context()->radar_product_view();
 
    const std::vector<boost::gil::rgba8_pixel_t>& colorTable =
       radarProductView->color_table();