Minor optimisation: only blit to screen when software rendered area forces an update

Author: timothyschoen

Source/NVGSurface.cpp

@@ -369,14 +369,19 @@ void NVGSurface::render()
     }
 
     if (needsBufferSwap) {
-        nvgBindFramebuffer(nullptr);
-        nvgBlitFramebuffer(nvg, invalidFBO, 0, 0, viewWidth, viewHeight);
+        blitToScreen();
+        needsBufferSwap = false;
+    }
+}
+
+void NVGSurface::blitToScreen()
+{
+    nvgBindFramebuffer(nullptr);
+    nvgBlitFramebuffer(nvg, invalidFBO, 0, 0, viewWidth, viewHeight);
 
 #ifdef NANOVG_GL_IMPLEMENTATION
-        glContext->swapBuffers();
+    glContext->swapBuffers();
 #endif
-        needsBufferSwap = false;
-    }
 }
 
 void NVGSurface::renderFrameToImage(Image& image, Rectangle<int> area)

Source/NVGSurface.h

@@ -41,6 +41,8 @@ class NVGSurface final :
 
     void renderAll();
     void render();
+    
+    void blitToScreen();
 
     bool makeContextActive();
 
@@ -106,7 +108,6 @@ class NVGSurface final :
 
     void addBufferedObject(NVGComponent* component);
     void removeBufferedObject(NVGComponent* component);
-    
 
 private:
     float calculateRenderScale() const;

Source/PluginEditor.cpp

@@ -1894,7 +1894,7 @@ void PluginEditor::broughtToFront()
 
 void PluginEditor::handleCommandMessage(int commandID)
 {
-    nvgSurface.invalidateAll();
+    nvgSurface.blitToScreen();
 }
 
 void PluginEditor::timerCallback()