(svn r15555) -Codechange: remove the mallocs + frees for temporary data from loading sprites.

src/spriteloader/spriteloader.hpp

@@ -15,12 +15,32 @@ public:
 		uint8 m;  ///< Remap-channel
 	};
 
+	/**
+	 * Structure for passing information from the sprite loader to the blitter.
+	 * You can only use this struct once at a time when using AllocateData to
+	 * allocate the memory as that will always return the same memory address.
+	 * This to prevent thousands of malloc + frees just to load a sprite.
+	 */
 	struct Sprite {
+		Sprite() : data(NULL) {}
+		~Sprite() { assert(this->data == NULL || this->data == Sprite::mem); }
+
 		uint16 height;                   ///< Height of the sprite
 		uint16 width;                    ///< Width of the sprite
 		int16 x_offs;                    ///< The x-offset of where the sprite will be drawn
 		int16 y_offs;                    ///< The y-offset of where the sprite will be drawn
 		SpriteLoader::CommonPixel *data; ///< The sprite itself
+
+		/**
+		 * Allocate the sprite data of this sprite.
+		 * @param size the minimum size of the data field.
+		 */
+		void AllocateData(size_t size);
+	private:
+		/** Allocated memory to pass sprite data around */
+		static SpriteLoader::CommonPixel *mem;
+		/** Size (in items) of the above memory. */
+		static size_t size;
 	};
 
 	/**