Use C++11's in-line member initializers instead of default constructors with initializer lists, for some structs.

--HG--
branch : minor

src/modules/graphics/Texture.cpp

@@ -27,29 +27,6 @@ namespace graphics
 
 Texture::Filter Texture::defaultFilter;
 
-Texture::Filter::Filter()
-	: min(FILTER_LINEAR)
-	, mag(FILTER_LINEAR)
-	, mipmap(FILTER_NONE)
-	, anisotropy(1.0f)
-{
-}
-
-Texture::Wrap::Wrap()
-	: s(WRAP_CLAMP)
-	, t(WRAP_CLAMP)
-{
-}
-
-Texture::Texture()
-	: width(0)
-	, height(0)
-	, filter(getDefaultFilter())
-	, wrap()
-	, vertices()
-{
-}
-
 Texture::~Texture()
 {
 }

src/modules/graphics/Texture.h

@@ -57,18 +57,16 @@ public:
 
 	struct Filter
 	{
-		Filter();
-		FilterMode min;
-		FilterMode mag;
-		FilterMode mipmap;
-		float anisotropy;
+		FilterMode min    = FILTER_LINEAR;
+		FilterMode mag    = FILTER_LINEAR;
+		FilterMode mipmap = FILTER_NONE;
+		float anisotropy  = 1.0f;
 	};
 
 	struct Wrap
 	{
-		Wrap();
-		WrapMode s;
-		WrapMode t;
+		WrapMode s = WRAP_CLAMP;
+		WrapMode t = WRAP_CLAMP;
 	};
 
 	Texture();

src/modules/graphics/opengl/Image.h

@@ -60,10 +60,8 @@ public:
 
 	struct Flags
 	{
-		bool mipmaps;
-		bool sRGB;
-
-		Flags() : mipmaps(false), sRGB(false) {}
+		bool mipmaps = false;
+		bool sRGB = false;;
 	};
 
 	/**