OpenGLRenderer: Handle resize/minimize

include/Nazara/OpenGLRenderer/OpenGLRenderWindow.hpp

@@ -49,6 +49,7 @@ namespace Nz
 			OpenGLRenderPass m_renderPass;
 			OpenGLWindowFramebuffer m_framebuffer;
 			RenderWindow& m_owner;
+			Vector2ui m_size;
 	};
 }
 

src/Nazara/OpenGLRenderer/OpenGLRenderWindow.cpp

@@ -21,7 +21,18 @@ namespace Nz
 
 	RenderFrame OpenGLRenderWindow::Acquire()
 	{
-		return RenderFrame(&m_renderImage[m_currentFrame], false);
+		if (m_owner.IsMinimized())
+			return RenderFrame();
+
+		bool invalidateFramebuffer = false;
+		Vector2ui size = m_owner.GetSize();
+		if (m_size != size)
+		{
+			invalidateFramebuffer = true;
+			m_size = size;
+		}
+
+		return RenderFrame(&m_renderImage[m_currentFrame], invalidateFramebuffer);
 	}
 
 	bool OpenGLRenderWindow::Create(RendererImpl* renderer, RenderSurface* surface, const RenderWindowParameters& parameters)
@@ -37,6 +48,8 @@ namespace Nz
 		if (!m_context)
 			return false;
 
+		m_size = m_owner.GetSize();
+
 		constexpr std::size_t RenderImageCount = 2;
 
 		m_renderImage.reserve(RenderImageCount);