Platform: multisampling support in Sdl2Application.

src/Platform/Sdl2Application.cpp

@@ -69,6 +69,12 @@ void Sdl2Application::createContext(Configuration* configuration) {
     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
     SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
 
+    /* Multisampling */
+    if(configuration->sampleCount()) {
+        SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
+        SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, configuration->sampleCount());
+    }
+
     window = SDL_CreateWindow(configuration->title().c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
         configuration->size().x(), configuration->size().y(), SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
     if(!window) {

src/Platform/Sdl2Application.h

@@ -219,9 +219,25 @@ class Sdl2Application::Configuration {
             return this;
         }
 
+        /** @brief Sample count */
+        inline Int sampleCount() const { return _sampleCount; }
+
+        /**
+         * @brief Set sample count
+         * @return Pointer to self (for method chaining)
+         *
+         * Default is `0`, thus no multisampling. See also
+         * @ref Renderer::Feature "Renderer::Feature::Multisampling".
+         */
+        inline Configuration* setSampleCount(Int count) {
+            _sampleCount = count;
+            return this;
+        }
+
     private:
         std::string _title;
         Vector2i _size;
+        Int _sampleCount;
 };
 
 /**