Remove irr namespace (#16309)

irr/src/COpenGLDriver.h

@@ -6,13 +6,10 @@
 
 #include "SIrrCreationParameters.h"
 
-namespace irr
-{
 class CIrrDeviceWin32;
 class CIrrDeviceLinux;
 class CIrrDeviceSDL;
 class CIrrDeviceMacOSX;
-}
 
 #ifdef _IRR_COMPILE_WITH_OPENGL_
 
@@ -22,9 +19,6 @@ class CIrrDeviceMacOSX;
 #include "COpenGLExtensionHandler.h"
 #include "IContextManager.h"
 
-namespace irr
-{
-
 namespace video
 {
 class IContextManager;
@@ -263,7 +257,7 @@ public:
 			const io::path &name = "rt", const ECOLOR_FORMAT format = ECF_UNKNOWN) override;
 
 	//! Creates a render target texture for a cubemap
-	ITexture *addRenderTargetTextureCubemap(const irr::u32 sideLen,
+	ITexture *addRenderTargetTextureCubemap(const u32 sideLen,
 			const io::path &name, const ECOLOR_FORMAT format) override;
 
 	virtual bool setRenderTargetEx(IRenderTarget *target, u16 clearFlag, SColor clearColor = SColor(255, 0, 0, 0),
@@ -294,7 +288,7 @@ public:
 	bool queryTextureFormat(ECOLOR_FORMAT format) const override;
 
 	//! Used by some SceneNodes to check if a material should be rendered in the transparent render pass
-	bool needsTransparentRenderPass(const irr::video::SMaterial &material) const override;
+	bool needsTransparentRenderPass(const video::SMaterial &material) const override;
 
 	//! Convert E_PRIMITIVE_TYPE to OpenGL equivalent
 	GLenum primitiveTypeToGL(scene::E_PRIMITIVE_TYPE type) const;
@@ -399,6 +393,5 @@ private:
 };
 
 } // end namespace video
-} // end namespace irr
 
 #endif // _IRR_COMPILE_WITH_OPENGL_