Add a ctor to ttexture which loads the texture from a file.

src/sdl/texture.cpp

@@ -16,6 +16,7 @@
 
 #if SDL_VERSION_ATLEAST(2, 0, 0)
 
+#include "SDL_image.h"
 #include "sdl/exception.hpp"
 
 #include <cassert>
@@ -36,6 +37,27 @@ ttexture::ttexture(SDL_Renderer& renderer,
 	}
 }
 
+ttexture::ttexture(SDL_Renderer& renderer,
+				   const std::string& file)
+	: reference_count_(new unsigned(1))
+	, texture_(NULL)
+{
+	SDL_Surface* img;
+	img = IMG_Load(file.c_str());
+
+	if (img == NULL) {
+		throw texception("Failed to create SDL_Texture object.", true);
+	} else {
+		texture_ = SDL_CreateTextureFromSurface(&renderer, img);
+
+		if (texture_ == NULL) {
+			throw texception("Failed to create SDL_Texture object.", true);
+		}
+
+		SDL_FreeSurface(img);
+	}
+}
+
 ttexture::~ttexture()
 {
 	assert(reference_count_);

src/sdl/texture.hpp

@@ -21,6 +21,7 @@
  */
 
 #include <SDL_version.h>
+#include <string>
 
 #if SDL_VERSION_ATLEAST(2, 0, 0)
 
@@ -55,6 +56,16 @@ public:
 			 const int w,
 			 const int h);
 
+	/**
+	 * Constructor.
+	 *
+	 * Loads image data from @a file and converts it to a texture.
+	 *
+	 * @param renderer            The renderer the texture is associated with.
+	 * @param file                Path of the file to load the pixels from.
+	 */
+	ttexture(SDL_Renderer& renderer, const std::string& file);
+
 	~ttexture();
 
 	ttexture(const ttexture& texture);