De-inline TextureState constructor/destructor.

It is heavier than it looks. Also fixed some includes in Implementation
subdir.

src/CMakeLists.txt

@@ -66,6 +66,7 @@ set(Magnum_SRCS
 
     Implementation/BufferState.cpp
     Implementation/State.cpp
+    Implementation/TextureState.cpp
 
     Trade/AbstractImageConverter.cpp
     Trade/AbstractImporter.cpp

src/Implementation/FramebufferState.h

@@ -26,6 +26,7 @@
 
 #include "Math/Geometry/Rectangle.h"
 #include "Magnum.h"
+#include "OpenGL.h"
 
 namespace Magnum { namespace Implementation {
 

src/Implementation/ShaderProgramState.h

@@ -24,7 +24,7 @@
     DEALINGS IN THE SOFTWARE.
 */
 
-#include "Magnum.h"
+#include "OpenGL.h"
 
 namespace Magnum { namespace Implementation {
 

src/Implementation/TextureState.cpp

@@ -0,0 +1,33 @@
+/*
+    This file is part of Magnum.
+
+    Copyright © 2010, 2011, 2012, 2013 Vladimír Vondruš <mosra@centrum.cz>
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+*/
+
+#include "TextureState.h"
+
+namespace Magnum { namespace Implementation {
+
+TextureState::TextureState(): maxSupportedLayerCount(0), maxSupportedAnisotropy(0.0f), currentLayer(0) {}
+
+TextureState::~TextureState() = default;
+
+}}

src/Implementation/TextureState.h

@@ -26,12 +26,13 @@
 
 #include <vector>
 
-#include "Magnum.h"
+#include "OpenGL.h"
 
 namespace Magnum { namespace Implementation {
 
 struct TextureState {
-    inline TextureState(): maxSupportedLayerCount(0), maxSupportedAnisotropy(0.0f), currentLayer(0) {}
+    explicit TextureState();
+    ~TextureState();
 
     GLint maxSupportedLayerCount;
     GLfloat maxSupportedAnisotropy;