GLContext: remove setSize() and set glViewport() in Display::onReshape()

source/Display/Display.cpp

@@ -5,6 +5,8 @@
 #include <Spectre/Graphics/Image.h>
 #include <Platform/PlatformDisplay.h>
 
+#include <Graphics/GL/gl.h>
+
 namespace sp {
 
 #define CAPTION_DEFAULT "Spectre"
@@ -182,8 +184,12 @@ void Display::swapBuffers()
 
 void Display::onReshape(int width, int height)
 {
-	// Resize context if the windows resizes.
-	m_context->setSize(width, height);
+	// TODO: This should even not be here.
+	// Generic Display should not have any GL calls.
+	// But it's better to have it here then in the platform specific GLContext
+	if (activate(true)) {
+		glViewport(0, 0, width, height);
+	}
 }
 
 } // namespace sp